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Патент USA US3033256

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May 8, 1962
J. M. SM‘ITH
4
HEATER WORKING MACHINE AND METHOD
Filed Dec. 30, 1957_
3,033,241
9 Sheets-Sheet 1
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JAMES
VENTQR
SMITH
BY @M W
ATTORNEY
May 8, 1962
J. M. SMITH -
3,033,241
HEATER WORKING MACHINE AND METHOD
Filed Dec. so, 195';
9 Sheets-Sheet 2
INVENTOR
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JAMES M. 5mm
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BY 7’frath/
A'ITORNEY
May 8, 1962 I
J. M. SMITH
3,033,241
HEATER WORKING MACHINE AND METHOD
Filed Dec. 30, 195'?
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May 8, 1952
J. M. SMITH
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HEATER WORKING MACHINE AND METHOD
Filed Dec. so, 195'?
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INVENTOR
JAMES M. SMITH
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ATTORNEY
May 8, 1962
J. M. SMITH
3,033,241
HEATER WORKING MACHINE AND METHOD
Filed Dec. 30, 1957
9 Sheets-Sheet 5
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BY Ma Ma ‘
ATTORNEY
May 8, 1962
3,033,241
J. M. SMITH
HEATER WORKING MACHINE AND METHOD
Filed Dec. 50, 1957
9 Sheets—Sheet '7
INVENTOR
JAMES 4151mm
' BY 71% W
A'ITORNEY
May 8, 1962
J. M. SMITH
3,033,241
HEATER WORKING MACHINE AND METHOD
Filed Dec. 30, 1957
9 Sheets-Sheet 8
114,145.? 41.
ENTOR
[I'll
1
BY WMZIM M
ATTORNEY
May 8, 1962
J. M. SMITH
3,033,241
' HEATER WORKING MACHINE AND METHOD
Filed Dec. 50, 1957
9 Sheets-Sheet 9
INVEN;2R
(bi/“£5 M. 5M]
BY
ATTORNEY
United States Patent 0 ” 1C6
3,033,241
Patented May 8, 1962
Quail
3,033,241
HEATER WORKING MAGHINE AND METHGD
James M. Smith, Emporium, li’a., assignor, by mesue as
signments, to Syivania Electric Products Inc., Wilming
ten, Del, a corporation of Delaware
Filed Dec. 30, 1957, tier. No. 706,058
22 Ciaims. (El. 140--—71.5)
each other and relative to the transfer head. The bun
dling jaws move toward the transfer head and into end?
wise engagement with the heater winding for pick-upuof
the heater winding from the transfer head. The bun
dling jaws are movable toward each other and are dis
placeable relative to the turret into a clearance position
such'that the folds of the heater winding are formed
into a bunch or bundle during the transfer of the heater
winding into the clearance position. Suitable provision
The present invention relates to an improved machine
and method for the manufacture of heaters for vacuum 10 may be made at this station for either inserting the bun
dled or bunched heaters into a traying device, into, a
cathode sleeve, or for manual removal of the completed
heaters for further processing.
?nal insertion in the cathode sleeve of a vacuum tube.
In accordance with method aspects of the present in
The heater for an indirectly heated cathode of a vacu
um tube usually includes a number of folds or lengths 15 vention, the coated heater’ wire is formed into a spiral
of heater wire having a refractory coating which folds
winding
spiral Winding
of generally
is laterallycylindrical
engaged tocon?guration.
displace opposite
tubes, and in particular to an improved method and ap
paratus for processing a heater winding preparatory to
or lengths are bundled for insertion into the sleeve of
the cathode, with the two terminal or end portions of
the heater wire extended through the cathode sleeve and
positioned for connection to an appropriate source of
heater potential. Although automatic machinery is em
ployed for winding the coated heater wire into the ele
mentary spiral or helical heater, it has been heretofore
the practice to fold the heater and gather the folds there
of into a bundle for insertion into the cathode sleeve by 25
half sections of the turns of the spiral winding toward
each other to form a ?at-folded heater body. The ?at
folded heater body is engaged endwise to form the same
into a bundle including opposite half sections of the
turns or folds bunched together into the ?nal heater con
?guration. Advantageously, the terminal portions of the
heater body may be stripped of the coating, preliminary
to the ?nal bunching of the heater folds or turns, to ex.
rather tedious, and time-consuming manual operations.
pose the heater wire for subsequent connection thereto
It is broadly an object of the present invention to pro
vide an improved method and machine for the manufao
ture of folded heaters of the aforesaid type. Speci?cally,
welded tabs.
it is within the contemplation of the present invention to
provide a highly versatile automatic machine for remov
ing the elementary heater windings from the mandrel of
an automatic heater winding machine and for thereafter
folding and processing the heater winding and gathering
of lead-in wires, either directly or by the provision of
_.
_
The above brief description, as well as further objects,
features and advantages of the present invention, will be
best appreciated by reference to the following detailed
description of a preferred apparatus, when taken in con
junction with the accompanying drawings, wherein: i
FIGURE 1 is a plan view of a heater working machine
the folds thereof into a bundle of dimensions appropriate 35 embodying features of the present invention, with parts
broken away for the purposes of illustration;
'
for insertion into the sleeve of an indirectly heated cath
FIGURE 2 is a sectional view, with parts broken away,
ode.
taken substantially along the line 2—2. of FIGURE 1
An illustrative machine embodying features of the pres
and looking in the direction of the arrows;
ent invention has multiple stations and comprises a turret
FIGURE 3 is a perspective view of the heater-engagf
having at least one transfer head provided with movable 40
ing jaws of the heater transfer head employed in my
gripping jaws. The turret is intermittently indexed to
advance the transfer heads stepwise into the successive
machine;
>
I
'
FIGURE 4 is an elevational view taken along the line
stations of the machine. A ?rst station of the machine
4—4 of FIGURE 2, looking in the direction of the ar:
includes heater winding mechanisms having a winding
mandrel upon which the heater winding is automatically 45 rows, and showing further details of the transfer head;
FIGURE 5 is a sectional view taken substantially along
wound. The turret is arranged to be shifted toward the
heater winding mechanism to bring the gripping jaws _ the line 5-—5 of FIGURE 4, with parts broken away‘ and
thereof into a pick-up position relative to the winding
sectioned; _
‘
FIGURE 6 is a sectional view taken substantially along
mandrel and provision is made for actuating the gripping
the line 6—6 of FIGURE 5, looking in the direction of
jaws when in the pick-up position to engage a heater wind
ing on the winding mandrel. The shifting arrangement
the arrows;
.
for the turret is such as to return the turret to a clear-v
FIGURE 7 is a sectional view taken substantially along
ance position relative to the heater winding mechanism
at the ?rst station, during which the heater is folded;
whereupon the turret is indexed to advance the transfer
head carrying the folded heater into a second or further
station of the machine. At the second station of the ma
the line 7——7 of FIGURE 6 and looking in the direction
chine, coating stripping mechanisms are provided which
include stripping jaws movable toward and away from
of thearrows;
1
FIGURE 8 is a sectional view taken substantially along‘
the line 8—8 of FIGURE 1, showing details of the coat~
ing-removal mechanisms incorporated in my machine;
FIGURE 9 is a sectional view taken substantially along
the line 9+9 of FIGURE 8, with parts broken away for
each other and relative to the transfer head. The strip 60
the purposes of illustration;
ping jaws are actuated such that they may be moved to
FIGURE 10 is a sectional view taken substantially
ward the transfer head at the second station and into
along the line 1ii—i€i of FIGURE 9, looking in the direci
engagement with terminal portions of the heater wind
tion of the arrows and showing the drive for the coating;
ing, provision being made for reciprocating the stripping
removal mechanisms;
' _‘
jaws when in contact with the terminal portions to strip
FIGURE 11 is a fragmentary perspective view, with
the refractory coating from the heater winding. The
parts broken away and sectioned, showing further details
stripping jaws are arranged to move into a clearance
of the coating-removal mechanisms;
position relative to the turret whereupon the turret is
FIGURE 12is an elevational view taken substantially
indexed to advance a transfer head into a third or fur
along the line 1?;—l2 of FIGURE 1 and looking in the
ther station of the machine. At this third station, bun~
direction of the arrows;
>_
.
dling and transferring mechanisms are provided which
FIGURE 13 is a fragmentary sectional view taken sub-,
include bundling jaws movable toward and away from
3,033,241
3
stantially along the line 13-—-13 of FIGURE 12 and look
ing in the direction of the arrows;
FIGURE 14 is a plan view, with parts broken away
and sectioned for the purposes of illustration, showing the
heater bundling and transferring mechanisms incorporated
in my machine;
4
FIGURE 24B is a view similar to FIGURE 24A but
showing the bundling jaws in engagement with the heater
preliminary to release from the gripping jaws of the
transfer head;
FIGURE 24C is a. view similar to FIGURE 24B but
showing the bundling jaws at the beginning of the trans
fer stroke and supporting the heater, with the gripping
FIGURE 15 is a vertical section of the heater bundling
and transferring mechanisms, with parts broken away for
jaws of the transfer head opened; and
the purposes of convenience;
FIGURE 16 is a fragmentary elevational view of the
parts broken away, showing the relative position of the
heater bundling and transferring mechanisms shown in
bundling jaws for gripping the folds of the heater winding
FIGURE 24D is a plan view on an enlarged scale, with
FIGURE 14, with parts broken away and sectioned for
into a bunch or bundle.
the purposes of illustration;
Preliminary to a detailed description of the invention
FIGURE 17 is a fragmentary plan View, with parts
by reference to the drawings, the general arrangement
broken away and sectioned, of the heater bundling and 15 and purpose of the present improved heater working
transferring mechanisms shown in FIGURE 14;
machine will be described.
FIGURE 18 is a plan view, with parts broken away,
The illustrative machine includes a rotary transfer
of the heater bundling and transferring mechanisms shown
turret 30 which is mounted for stepwise indexing to bring
in the clearance position relative to the turret and with
successive heater transfer heads 32 from the loading sta
the parts disposed in the relative positions occupied after 20 tion, through the several work stations and into the un»
bundling and transferring of the heater, the dotted line
loading station of the machine. The present machine has
illustrating the pick-up position relative to the turret,
been designed to carry eight heater transfer heads 32 in
which is also shown in FIGURE 14;
the counterclockwise direction (when viewed in FIGURE
FIGURES 19 to 22A are schematic and diagrammatic
1) through a No. 1 station (34) at which the heater H
views illustrating the several operations at the heater
is picked up from the heater winding and forming mecha
pick-up station of my machine, to wit:
nisms which are generally known and will he described
FIGURE 19 is a diagrammatic and schematic plan
hereinafter in general terms, into a No. 3 station (36)
view illustrating the relationship of the heater gripping
arranged to remove the refractory coating C on the termi
jaws and the winding mandrel at the start of the opera—
nal ends hl, I12 of the heater H (see FIG. 19) for ex
tion;
30 posing the heater wire W (see FIG. 2313) to enable
FIGURE 19A is a sectional view taken substantially
welding directly thereto or tabbing of the terminal ends
along the line 19A——19A of FIGURE 19;
of the heater wire, and ?nally into a No. 7 station (38)
FIGURE 20 is a view similar to FIGURE 19, but
at which the heater H is bundled for manual transfer,
showing the heater gripping jaws and the winding man
traying or further work operations. The intermediate
drel in their relative positions for pick-up of a .heater
Nos. 2, 4, 5 and 8 stations are provided in the instant
wound on the mandrel;
machine to establish idle periods between successive work
FIGURE 20A is a transverse section on FIGURE 20;
FIGURE 21 is a view similar to FIGURE 20 but show
intervals, or to enable the machine to be adapted for
further work operations. For example, in some applica
ing the gripping jaws in supporting relation to the heater
tions, it is necessary to subject the heater to further coat
after the winding mandrel has contracted and during the 40 ing removal mechanisms (i.e. at station No. 4) to assure
return stroke of the gripping jaws;
more perfect removal of the heater coating and exposure
FIGURE 21A is a transverse section on FIGURE 21;
of the terminal ends I21, 122 of the heater wire. It will be
FIGURE 22 is a view similar to FIGURE 21 but show
appreciated that a great latitude of substitution and varia
ing the gripping jaws during the return stroke, the heater
tion is intended with respect to the degree of turret in
being folded as a result of the further movement of the
dexing and the number of stations and like design factors
45 which will depend upon general machine design consid
gripping jaws relative to each other; and,
FIGURE 22A is a transverse section taken on FIGURE
erations, the ultimate application of the machine and
22 showing the folded heater in its condition for transfer
other factors not particularly pertinent to the present
to the coating-removal station of the machine.
invention.
FIGURES 23 to 23B inclusive are schematic and dia
The operations performed at station No. 1 are shown
grammatic views illustrating the several operations at the
diagrammatically, and may be best appreciated, by
coating-removal station of my machine, to wit:
progressive reference to FIGURES 19A to 22A inclu
FIGURE 23 is a schematic and diagrammatic view in
sive. The mechanisms of the heater winding device 34
elevation showing the stripping jaws in position to engage
are known per se and accordingly will not be described
the terminal portions of the heater winding when brought
in detail. It will su?ice for the present purposes to ex
into the coating-removal station by the gripping jaws of
plain that a two-part expandable and contractible wind
the heater transfer head;
ing mandrel 40 is arranged radially outwardly of station
FIGURE 23A is a transverse section taken on FIGURE
No. 1 and is rotatable about its longitudinal axis for
23, with the clearance or retracted position of the strip
winding of the wire thereabout to form the elementary
ping jaws being illustrated by the broken lines, and the
spiral heater body H with the terminal ends or sections
engaged or operative position of the stripping jaws being 60 I21, I12. The mandrel 40 includes two jaws 40a, 40b,
illustrated by the full lines; and
FIGURE 23B is a transverse section taken on FIGURE
which are mounted for movement toward and away from
each other. Normally the jaws 40a, 4011 are in the open
23 with the clearance or retracted position of the stripping
or spread-apart position (illustrated in FIGURES l9 and
jaws being shown by the full lines, and with the engaged
or operative position of the stripping jaws being shown by 65 20) and are closable at a predetermined time in the cycle
the broken lines.
FIGURES 24A to 24D inclusive are schematic and
diagrammatic views illustrating the several operations at
(illustrated in FIGURES 21 and 22) to enable the wound
heater H to be axially removed therefrom as will subse
quently be described. The jaws 40a, 4% are formed
with knife-like parting blades 40c, 40d, which fracture
70 or break the refractory heater wire coating C at the
chine, to wit:
opposite lateral margins of the mandrel 40 such that an
FIGURE 24A is a schematic and diagrammatic plan
accurate and prescribed shape may be imparted to the
view (similar to FIGURE 1) showing the bundling jaws
heater‘H. This shape, of course, will depend upon the
open, but in position to engage the heater brought to
outline of the mandrel 40 and is varied in accordance
the bundling and transferring station by the gripping jaws
of the transfer head;
75 with the desired heater con?guration. The heater trans
the heater transferring and bundling station of my ma
3,033,241
5
fer head 32 includes a pair of heater-engaging jaws 42,
44 which are movable toward and away from each other
into supporting relation with the heater H (see FIGURES
19A and 20A) and also are movable axially of the wind
ing mandrel 40', as indicated by the directional arrow in
FIG. 19, as will be described hereinafter. When the
turret 30 indexes to bring a particular heater trans-fer
6
trated by the full lines in FIGURE 23B in which the‘
abrading tools remain until the next work cycle. The
condition of the heater H after the operation performedv
at station No. 3 is illustrated best in FIGURE 23B.
Thereupon the turret is effective to index the heater H,
with the terminal sections h1, h2 stripped or cleaned, into
the bundling and unloading station 38. As may be
appreciated by inspecting the plan view of FIGURE 1,
head 32 into position opposite the winding head 40 at the
the heater bundling and unloading station 38 is diametri
No. 1 station (as shown diagrammatically in FIGURES
19, 19A), the jaws 42, 44 are disposed radially inwardly 10 cally opposite the coating removal station 36, and accord
ingly there are three dwell or idle positions through which
of the mandrel 4t)‘ and are spread apart in an amount
the heater transfer head 32 indexes after leaving the
su?icient to provide lateral clearance relative to the
station 36 and before being brought into operative rela
heater. Thereupon the jaws 42, 44 are moved radially
tion to the mechanisms at the station 38.
outwardly, that is axially of the mandrel 40, into the
heater-engaging position shown in FIGURES 20 and 20A, 15 The function of the mechanisms at the bundling and
unloading station 38 may be best appreciated by reference
whereupon the jaws 42, 44 move toward each other and
to the diagrammatic showing of FIGURES 24A to 24D
into supporting relation to the heater H supported on
inclusive. As seen in these ?gures, which are plan views
the winding mandrel 40. Thereupon the mechanisms of
for convenience of illustration (see also FIGURE 1),
the heater winding device 34 are effective to move the
mandrel jaws 40a, 40b toward each other to collapse the 20 the folded heater H supported by the heater-engaging
jaws 42, 44 comes into a pick-up position relative to a
winding mandrel 4b‘, as shown in FIGURES 21 and 21A,
pair of transfer and bundling tools 50, 52. During the
whereupon the heater H is freed to be transported by the
turret indexing intervals, the transfer and bundling tools
jaws 42, 44, for movement off the collapsed winding
‘50, \52 are disposed outwardly of the turret 36 and there
mandrel 40, as indicated by the directional arrow in
FIGURE 21. After the heater H is stripped from the 25 after, by mechanisms which will subsequently be de
scribed are moved into the position illustrated in FIGURE
collapsed winding mandrel 40', the jaws 42, 44, move still
24A wherein the tools are spaced apart and are at oppo
further closer together, as seen best in FIGURE 22A
site sides of the heater H supported on the heater-engag
to laterally compress the heater H into the ?nal folded
ing jaws 42, 44. The jaws, 42, 44 are relieved away, as
con?guration, shown best in the cross-sectional view of
FIGURE 22A. In this position the folded heater H is 30 seen best in FIGURE 3, to enable the transfer and bun
dling tools 50, 52 to move toward each other into a
transferred into the coating removal or scraping station
closed position illustrated in FIGURE 24B, wherein the
No. 3 (36). Of course it will be appreciated that station
heater H is supported entirely by the tools 50, 52. With
No. 3 is displaced from station No. 1 by 90° about the
the heater thus supported, the jaws 42‘, 44 are opened,
turret 30. Accordingly the particular heater transfer
head 32 will be ?rst indexed through the idle position 35 as seen in FIGURE 24C, freeing the transfer and bun
dling tools 50‘, 52, and supported heater, for movement
corresponding to the No. 2 station.
outwardly from the turret 30 for the transfer and hun
The function of the coating-removal mechanisms at
dling operation. This transfer and bundling operation in
station 36 will be best appreciated by reference to the
volves the removal of the heater H to an unload position
diagrammatic showing of FIGURES 23, 23A and 23B.
At this station, a pair of reciprocating abrading tools 46, 40 and the simultaneous longitudinal gathering or bundling
of the heater, as may be best appreciated by progres
48 are brought into operative engagement with the termi
sively inspecting FIGURES 24C and 24D. This is'
nal sections or ends h1, h2 of the heater H for the pur
achieved, in general terms, by initially longitudinally con-'
pose of scraping away the refractory coating to expose
?ning the heater H between opposite abutrnents 50a,‘
the heater wire W, as seen best in FIGURE 233. The
52A on the tools 50, 52. During the outward travel
extent to which the coating is removed and the location
of the tools as a unit, the tools 50, 52 move relative to
of the removal of the coating will be determined by the
each other such that the abutments 50a, 52a approach
shape and location of the abrading tools 46, 48. In some
each other which thereby gathers the successive turns of
instances a portion of the coating outwardly of the ex
the folded heater into a bundle, the tightness of which
posed length of wire is left on the terminal sections
ultimately depends upon the ?nal spacing of the abut
h1, h2 to enable the operator to more easily locate said
ments 50a, 52a, as established by the required physical
terminal sections; in other instances the entire terminal
geometry of the heater H for insertion into its cathode
portions or sections I11, hz are stripped clean to expose
sleeve. At the end of the transfer operation, the bun
the heater wire W. The abrading tools 46, 48 are
dled heater (see FIGURE 24D) may either be manually
located at an elevated position above the level of the
turret 30 to enable the heater transfer head 32 to index 55 unloaded, placed into a traying device, or transferred to:
another machine for further processing.
into station 36, the elevated or inoperative position of the
Reference will now be made to FIGURES l and 2 forv
tools 46, 48 being shown by the broken lines in FIGURES
a description of the mechanisms by which the turret 30 is ,
23 and 23A. When the heater transfer head 32 brings
intermittently indexed to bring the successive heater ,
the heater H into position for the work operation at
station 36, the abrading tools 46, 48 move downwardly 60 transfer heads 32 into the several stations of the machine,
and to the further mechanisms for sideways shifting of.
through a prescribed stroke, as shown by the vertical
directional arrows in FIGURES 23 and 23A, and there
upon move toward each other into contact with the termi
the turret 30 by means of which the heater transfer head
is axially shifted in station No. 1 from the retracted posi
tion wherein the heater-engaging jaws 42, 44 are spaced
nal sections h1, h2 as indicated by the further horizontal
directional arrows in FIGURE 23A. In the operative 65 inwardly of the collapsible winding mandrel 40 (see
FIGURES 19, 19A) to the heater pickup position where- _
position, illustrated by the full lines in FIGURES 23 and
in the jaws 42, 44 are at opposite sides of the mandrel 40
23A, the abrading tools 46, 48 are reciprocated relative
(see FIGURES 20‘, 20A). The machine includes a main
to each other at a fairly rapid rate to effect the removal
machine base or housing 60 made up of a number of
of the refractory heater coating C, as will subsequently
be described in detail. After a prescribed abrading or 70 castings which supports a laterally shiftable carrier 62
cleaning interval has elapsed, the abrading tools 46, 48
> upon which is carried a standard 64 for a circular turret
head 66 of the turret 30. The shiftable carrier 62, which
is movable from right to left in FIGURE 2, to bring the
heater transfer head 32 at station No. 1 into the pick-up
FIGURE 23B, and thereupon move upwardly through a
prescribed vertical stroke to the inoperative position illus 75 position relative to the wound heater H on the mandrel
move away from each other through a prescribed stroke,
as indicated by the horizontal directional arrows in
3,033,241
8
40, and is movable to the right into the position illus
trated in FIGURE 2, for indexing of the picked up
heater through the successive stations of the machine,
is supported on ?xed circular ways 68, 70, which are
received within appropriate guideways in the shiftable
carrier 62. Accordingly, the carrier 62 may be shifted
winding mandrel 411a, as can be best appreciated by ref
erence to the diagrammatic showing in FIGURES 19 to
22A. The spacing between the upper and lower jaw
radially through a prescribed stroke to displace the turret
axis from its normal location (see FIGURE 2). The
parts 42a, 42b provides an access region between the
parts of the jaw which engage the heater winding H such
length of this stroke is determined by the required de
gree of shifting needed to locate the heater transfer head
32 relative to the collapsible mandrel 46 for pick-up of
that the heater bundling jaws 50, 52 may be brought into
a wound heater H.
winding by the mechanisms at station 38. In view of
the identity of the heater engaging or gripping jaw 44
with the jaw 42, corresponding reference numerals have
been applied thereto in the drawings.
The turret standard 64 includes a
bottom bearing ?ange 72 which is received within a
circular seat 74 formed in the upper surface of the
shiftable carrier 62 such that the turret heat 66 may
be rotated relative to the carrier 62, as well as shifted
with the carrier. In order to impart stability to the turret
head 66 as it rotates relative to the carrier 62, the
standard 64 is hollowed out to receive an upstanding
turret shaft 76 which is ?xed to the carrier 62 and carries a bearing 78, the inner race of which is ?xed to
the upstanding turret shaft 76 and the outer race of which
is ?xed to and revolves with the standard 64.
A common drive is employed to both index the turret
30 and to laterally shift the carrier 62 at prescribed times
in the machine cycle, the timing of which will subse
quently become apparent. This common drive includes
a main driving sprocket 80 which is connected by a
main sprocket chain 82 to an appropriate drive motor
(not shown). The main driving sprocket 86 is carried
on a main drive shaft 84 which is appropriately jour
naled on the machine base or housing 60 by bearings
86. The main driving sprocket 81) is coupled via an
appropriate gearing train to a carrier-shifting cam S8
which is journaled in a stationary position, and to an
indexing cam 90 which is journaled on the shiftable
carrier 62. The carrier-shifting cam 88 is of the barrel
type and is supported on a carrier shift cam shaft 92
which is appropriately journaled on the machine base
or housing by bearings 94. The barrel cam 88 is formed
with a peripheral cam track 83a which is engaged by a
follower 96 which is in the form of a roller journaled
on the shiftable carrier 62. The development of the cam
track 88a is selected to periodically laterally shift the
turret 30 through a prescribed stroke toward the mandrel
40 of the heater winding mechanisms, as previously ex
plained. The index cam 90 is carried by an index
part 421: and a mounting arm 42d. The upper and lower
jaw parts 42a, 421; have their heater-engaging faces 42c
and 42]‘ pro?led in accordance with the shape of the
engagement with the portion of the heater through said
access region for engagement and pickup of the heater
Reference will now be made to FIGURES 2 to 7 in
clusive for a detailed description of the manner in which
the heater engaging jaws 42, 44 are mounted for move
ment relative to each other for pick-up of the heater
winding H and for ?attening the heater winding into
folds, as seen best in FIGURE 22A. The jaws 42, 44
are movably mounted on the heater-transfer head 32
which includes a housing 116 ?xed to the circular body
66 of the turret 30 by bolts 112, as seen best in FIG
URES 1 and 2. The transfer head housing 110 extends
radially outwardly of the circular body 66 and normally
supports the jaws 4-2, 44 at a location radially inwardly
of the expandable mandrel 4t) and substantially at the
same level as the expandable mandrel 40 (see FIGURE
2). The housing 110 includes an interior compartment
which receives the several actuating and mounting means
for the jaws 42, 44, access into the interior compartment
being bad through a removable cover plate 110a (sec
FIGURE 4) appropriately bolted in place. Journaled
within the forward portion of the housing 110 in ap
propriate bearing openings are hollow jaw mounting
shafts 114, 116 for the respective jaws 42, 44. The jaw
mounting shafts 114, 116 are disposed one above the
other (see FIGURES 5 and 6) and extend from side
to side of the housing 110 and substantially tangentially
of the turret 30. The jaw mounting shaft 114 carries
a jaw mounting bracket 118 on one end thereof, one
leg 118a of the jaw mounting bracket extending at right
angles to the mounting shaft 114 and being integral there
with (see FIGURE 7) and the other arm 118b extend
ing substantially parallel to the mounting shaft 114 and
being formed with a guide way 1180 which receives the
cam shaft 98 appropriately journaled by bearings 16%
mounting arm 42:! of the jaw 42. The jaw 42 is remova
on the carrier 62. The cam 90 periodically achieves
bly secured to its mounting bracket 118 by a bolt or
index of the turret 30 through a prescribed angular 50 machine screw 120. In a similar fashion, the mounting
shaft 116 carries a jaw mounting bracket 122 on which
traverse, as is well understood in the art, and is formed
with a cam track 96a which is selectively engaged by an
is removably secured the jaw 44 by a bolt 124.
appropriate number of cam followers 102 in the form
The degree of sidcwise movement of the jaw mount
of rollers journaled on and depending below the bearing
ing shaft 114 and its jaw 42 is limited by a transverse
?ange 72 of the turret assembly. As is conventional,
the cam followers 102, pair by pair, engage the cam track
90:: of the index cam 90 to achieve the periodic index
of the turret 30. The gear train which connects the
main driving sprocket 80 to the respective cams 88, 96,
stop pin 126 which extends through opposed elongated
limiting slots 128 formed in opposite sides of the mount—
ing shaft. The outer extremities of the stop pin 126
are ?xed into the adjacent walls of the housing 110. Dis
posed within the hollow interior 114a of the jaw mount
includes a spur gear 104 ?xed to the driving sprocket 80
ing shaft 114 is a biasing spring 139 which bears at one
60
and in meshing engagement with a further spur gear 166
end against an end wall of the shaft and is connected at
carried on the cam shaft 92. The spur gear 106 in
the other end to the stop pin 126 (see FIGURE 7). The
turn drives a further spur gear 168 which is in meshing
biasing spring 130 urges the jaw 42 into its closed posi
engagement therewith and ?xed to the cam shaft 98.
tion, that is to the left in FIGURE 7, toward the jaw
The spur gear 106 is of su?icient width to provide a 65 44, such that the stop pin 126 is normally disposed at
driving connection to the spur gear 103 as the spur gear
the right extremity of its limiting slot 128. In a similar
108 shifts laterally as a function of the carrier shift
fashion, the mounting shaft 116 for the jaw 44 is pro
movement determined by the development of the cam 88.
vided with means which limit its side to side adjustment
By speci?c reference to FIGURE 3 of the drawings,
and an internal spring which tends to urge the jaw 44
the details of the heater engaging or gripping jaws 42,
44 of the heater-transfer head 32 may be more fully ap
preciated.
Since both of these jaws are of identical
structure it will suffice to describe only one in detail.v
The heater engaging or gripping jaw 42 includes an
into its closed position, that is, to the right in FIGURE
7 toward the jaw 42.
In that the jaw mounting shafts 114, 116 are disposed
at different levels (see FIGURE 6), the bracket arms
118b, 12% are appropriately mounted in relation to their '
upper jaw part 42a, a lower jaw part 42b, a connecting 75 respective supporting arms 118a, 122a, to locate the jaws
9,033,241
9
10
42, 44 opposite each other and symmetrically of a verti
cal reference plane extending radially of the turret (see
FIGURE 4 and the section line 5—5). To facilitate
the proper orientation of the jaws 42, 44, vertically in
relation to each other, the bracket arm 11% may be
mounted for vertical adjustment relative to the arm 118a
and similarly the bracket arm 122b may be mounted
for vertical adjustment relative to the arm 122a, as seen
best in FIGURE 4. The arms 118b, 122b are ?xed in
position by respective bolts 132, 134.
The heater engaging jaws 42, 44 are held in spaced
apart relation against the biasing effect of their respec
tive springs through provision of cam-controlled jaw actu
the guide rail or Way 166 with an extension 166a which
is journaled within a further bearing 17011.
As previously described in general terms, the abrading
tools 46, 48 when spaced apart or open are lowered from
an upper clearance position to an operative position (see
FIGURES 23 to 23B inclusive); and in their lowered or
operative position are brought into engagement with the
opposite terminal portions h1, kg of the heater H for re~
moving the refractory coating from the engaged terminal
10 portions. As seen best in FIGURE 9, the abrading tools
46, 48 are carried on respective mounting blocks 174,
176 which mount the abrading tools 46, 48 for movement
toward and away from each other by laterally-extending
ating mechanisms which will now be described. The
integral arms 174a, 176:: of the mounting blocks 174,
jaw actuating mechanisms include an upstanding actua 15 176.
tor rod 136 which is mounted for vertical movement
in an appropriate guideway 138 formed in a depending
integral collar or ?ange 1101) on the housing 110. The
lower end of the actuator 136 extends beyond the lower
end of the ?ange 1119b and carries a roller or follower 20
140 which is periodically engaged to vertically displace
The abrading tools 46, 48 are to be longitudinally re
ciprocated relative to each other and for this purpose are
accommodated in slideways formed in the respective
mounting blocks 174, 176. The slideway 176b for the
abrading tool 48 is seen in FIGURE 8; and a similar
slideway is provided ‘in the mounting block 174 for the
abrading tool 46.
the actuator 136 which in turn establishes the position
of the jaws 42, 44 with respect to each other. The actua
The abrading tools, which are spring-biased toward
tor 136 is shown in FIGURES 5 to 7 in the position cor
each other, are moved apart and allowed to close toward
responding to the jaws 42, 44 being closed under the 25 each other by a cam-controlled combined follower and
in?uence of their biasing springs. As the actuator 136
spreader member 182 (see FIGURE 11). The spreader
member 182 has a wedge- or V-shaped camming section
is moved upwardly from the position illustrated in FIG~
URE 5, various open jaw positions will be established
182a having camming surfaces 182b, 1820 engaged by
as a function of the vertical displacement of the actuator
respective follower rollers 1740, 1760 journaled on and
136. The actuator 136 is coupled to the jaw mounting 30 depending below the respective mounting blocks 174,
176 (see FIGURE 8). Referring to FIGURE 8, it is
seen that the combined follower and spreader member 182
which are ?xed to the shafts 114, 116 and carry fol
is slidably mounted within an accommodating guideway
lower rollers 146, 148 which ride on the opposite cam
162e which extends fore and aft of the housing 162'. It
ming surfaces of a V-shaped spreader member 150 ?xed
shafts 114, 116 by respective bifurcated yokes 142, 144
to the upper end of the actuator 136.
As seen best in 35 will be appreciated that as the cam follower rollers 1740,
FIGURE 6, the follower roller 146 rides upon the cam
1760 are progressively spread apart by the action of the
ming surface 150b, the rollers being urged into contact
with the respective camming surfaces 150, 15% by the
action of the biasing springs 130 associated with the jaws
progressive camming surfaces 182b, 182a of the spread
ing member ‘182, that various open or spread apart posi
tions are established for the abrading tools 46, 48. For
42, 44. The spreader member 150, as a function of the 40 this purpose, a disc control cam 184 is journaled within
the housing 162' and has its peripheral camming surface
184a engaged by a follower roller 182d journaled on
upward displacement of the actuator 136, spreads the
rollers 146, 148 and correspondingly spreads the jaws
42, 44. The mechanisms for opening the heater-engag
ing jaws 42, 44 via the actuator 138 at the heater load
the spreader member 182. The camming surface or pro
?le of the cam 184 is established to open the abrading
ing or pickup station 34, for closing the jaws to engage the 45 tools 46, 48 at the prescribed time in the operating cycle,
as explained in conjunction with FIGURES 23 to 23B.
heater, for further closing the jaws to fold the heater H
The cam follower 182d is biased into engagement with
(all of which occur at station No. l) and the further
the control cam 184 by a spring 186 which is interposed
mechanisms for opening the heater-engaging jaws after
between the front wall of the housing 162 and the adja
processing (which occurs at station No. 7) will be de
cent front surface of the spreading member 182 (see
scribed hereinafter.
50
FIGURE 8). The control cam 184 is journaled on a
The bifurcated yoke 142 on the jaw mounting shaft 114
stub shaft 188 which is slidably coupled to a control shaft
includes a split head section 142a (see FIGURE 5) which
190 journaled on the station casting 160 by appropriate
is clamped to the jaw mounting shaft 114 by a bolt 152
bearings 192. As seen best in FIGURE 13, the stub
and includes depending guide ?anges 142b, 1420 which
ride on appropriate ?ats 116a, 116b milled in opposite 55 shaft 188 is connected to the control shaft 190 by a pin
188a ?xed to the stub shaft 188 and con?ned within ver
sides of the jaw mounting shaft 116. In a similar fashion
tical slots 190a in the control shaft 190. As seen best
the yoke ‘144 is ?xed to the mounting shaft 116 by a
in FIGURES 2, 12 and 13, the control shaft 190 is driven
bolt 154 and is appropriately guided by ?ats milled on
opposite sides of the jaw mounting shaft 114.
Reference will now be made to FIGURES 8 to 13 in
clusive for a description of the coating removal mecha
nisms at station 36, the function of which has been pre
viously described in conjunction with the diagrammatic
60
from the main driving sprocket 80 through a radially-ex;
tending coupling shaft 194 which is connected at its outer
end to the control shaft 190 by bevel gearing 196, 198
and at its inner end via bevel gearing 200, 202 to the bevel
gear 204 on the main drive shaft 84.
The housing 162 is raised and lowered to establish the
showings of FIGURES 23 to 23B inclusive. The coat
ing removal mechanisms at station 36 include a station 65 clearance and operative position for the abrading tools
by a control cam 206 ?xed to the control shaft 190. The
casting 160 ?xed to the main casting or machine base 60
camming surfaces 286a of the control cam are engaged
at the No. 3 station or position. The abrading tools 46,
by a cam follower 208 which is journaled on a yoke 210
48 and some of their actuating mechanisms are carried
on a vertically movable housing 162 which is mounted
connected between the vertical ways 164, 166. As seen
for vertical displacement on the casting 160 by a pair of 70 best in FIGURES 12 and 13, the camming surfaces 206::
upstanding guide rails or ways 164, 166. The ways 164,
of the control cam are engaged by a cam follower 208
166 are journaled intermediate their ends in appropriate
which is journaled on a yoke 210 connected between the
bearings 168, 170 on the casting 160 and are ?xed to the
vertical ways 164, 166. As seen best in FIGURES 12.
housing 162 at their upper ends by a cross brace 172.
and 13, the camming surfaces 206a include a rise por-A
Further stability is imparted to the assembly by providing 75 tion (upon which the cam follower 2.08 is engaged in
3,033,241
11
12
carries a coupling head 220 on which is journaled an
a pin 2540 on the tool-carrying arm 254 to urge the
tool 52 toward the tool 50, that is to the left in FIGURES
the respective tool carrier assemblies 246, 248 are
the illustration) which rise portion corresponds to an
mounted on a vertical main pivot 250 for movement as
elevated clearance position for the abrading tools 46, 48
a unit and for movement relative to each other with
and includes a dwell portion which corresponds to the low
the carrier assembly 246 for the tool 50 overtraveling
cred or operative position for the abrading tools.
relative to the carrier assembly 248 for the tool 52.
Referring again to FIGURES 8 and 9, it is seen that
‘The tool-mounting sections 2461), 24% are in sub
provision is made for establishing the extent to which
stantial side by side relationship and are disposed at the
the abrading tools 46, 48 may approach each other under
same general level. This supporting arrangement is
the in?uence of the biasing springs, 178, 180, thus estab
achieved by providing the tool carrier assembly 246 with
lishing a minimum tool separation. This is achieved by
the provision of a blade 210 which is adjustable fore and 10 a generally-transversely extending intermediate section
2460 which extends beneath the tool mounting section
aft of the housing 162. The leading end of the blade 210
243: (see FIGURE 15) and carries the tool-mounting
includes a wedge~shaped pro?le 210a which engages com
section 246b. The tool-mounting section 246b is formed
plementary camming surfaces provided on the confront
with a guideway 246d in which is slidably mounted an
ing faces of the mounting blocks 174, 176. The blade
arm 252 which carries the bunching tool Stl. The arm
210 is brought to the position required to establish the
252 includes a mounting section 252a con?ned within the
minimum tool separation by an adjusting screw 212. The
guideway 246d and a projecting tool-supporting section
adjusting screw or bolt is received within an appropriate
25212. Similarly, the tool 52 is mounted on an arm 254
tapped hole 214 at the rear side of the housing 162 and
which includes a tool-mounting section 254a accommo
is adjusted to establish a prescribed separation for the
dated within a guideway 248d formed in the carrier
abrading tools 46, 48 which are preferably formed with
assembly and a projecting tool-supporting section 254k
tungsten carbide tips 46a, 48a.
which carries the bunching tool 52. The tool-support
The abrading tools 46, 48 are reciprocated at a com
ing arms 252, 254 are spring-biased to urge the bunch
paratively high speed relative to each other to achieve
ing tools 50, 52 toward each other. As seen in FIG
coating removal by mechanisms, seen best in FIGURES
URE 15, a spring 256 which is in compression is dis
8 to 10 inclusive. These mechanisms include a motor
posed within an accommodating recess 248:2 in the tool
216 mounted on the housing 162 by an appropriate base
mounting section 24315 of the carrier 248 and engages
?ange 218. The output shaft 216a of the motor 216
eccentrically mounted coupling shaft 222 which carries
spaced points along its length and at one side by respec
tive follower rollers 46b, 48b journaled on the rearward
end of the abrading tools 46, 48. Further, the driver
Similarly, a spring is associated with the tool
carrying arm 252 for the bunching tool 50 which urges
the same toward the tool 52, that is to the right in FIG
URES 14 and 15.
arm 224 is engaged at its opposite side by a constraining
roller 226 journaled on a supporting plate 228 which is
biasing effect of their respective springs at the required
a driver arm 224.
The driver arm 224 is engaged at 30 14 and 15.
The bunching tools 50, 52 are opened against the
adjustably secured to the housing 162 by appropriate
times in the machine cycle through cam controlled
bolts 230. The position of the constraining roller 226
may be adjusted lengthwise of the driver arm 224 by
the illustrated mounting arrangement 228, 230 for the
purpose of controlling the extent of reciprocation of the
abrading tools 46, 48 by the eccentrically driven arm
224. The follower rollers 46]), 48b on the abrading
mechanisms which include an inner control shaft 258
journaled within an outer control shaft 260 which in
turn is journaled on the hollow standard 242 by spaced
earings 261. At its upper end, the control shaft 258
tools 46, 48 are biased into contact with the driver
carries a control cam 262 which has its camming sur
face 262a engaged by the follower 264a of a common
control plate 264. for the tool~supporting arms 252, 254.
The control plate 264 is mounted on an upstanding pivot
266 for rocking movement under control of the cam 262
arm 224 by appropriate springs engaged between the
tools 46, 48 and their respective mounting blocks 174, 45
via the follower 262a and carries camming rollers 270,
176. There is shown in FIGURE 8 the biasing spring
272 which are engaged respectively with the mounting
232 for the tool 48 which is received within an accom
modating cut-out in the abrading tool 48 and has one
end bearing against the rearward wall of the cut-out and
sections 252a, 254a of the tool-carrying arms 252, 254.
Speci?cally, the roller 270 engages the camming surfaces
has its other end anchored on a post 234 fixed to the 50 252c on the arm 252, while the roller 272 engages the
camrning surfaces 2540 on the arm 254. As seen best
in FIGURE 14, counter-clockwise rocking movement of
Reference will now be made to the detailed showing
the common control plate 264 will cause the arm 252 to
of FIGURES 14 to 18 inclusive for a description of
mounting block 176 and depending into the cut-out.
the mechanisms at the bundling and unloading station 38,
which, as previously described in general terms in con
nection with FIGURES 24A to 24D inclusive, includes
bundling tools 50, 52 which are effective to pick up the
folded heater H with its end portions or terminals I11,
be urged to the left against the biasing effect of the
spring associated with the bundling tool 50; and this
same counterclockwise rocking movement of the control
plate 264 will urge the arm 254 to the right against
the biasing effect of the spring associated with the bundling
tool 252. The carrier assemblies or units 246, 248
into a bundle for manual removal, traying or automatic 60 for the bundling tools 50, 52 are pivoted as a unit for
horizontal swiveling movement about the main pivot 250,
insertion into a cathode sleeve. At this station, a fur
as indicated by the directional arrows in FIGURES l
ther station casting 240 (see FIGURE 2) is ?xed to the
and 14, to transport the heater H away from the heater
main base or casting 60 and carries an upstanding stand
transfer head 32 at the station 33. This in~unison travel
ard 242 which supports the housing 244 having the
removable cover plate 244a. Respective tool carrier 65 is achieved by the outer control shaft 260 which is affixed
to the carrier assembly 246 by an appropriate pin or
assemblies, generally designated by the reference nu
key 274. During the arcuate traverse of the carrier
merals 246, 243 support the bundling and transfer tools
units 246, 248 from the pickup position relative to the
50, 52 for movement as a unit to achieve the transfer
heater transfer jaws ‘42, 44 (illustrated in FIGURES l
function and for movement relative to each other to
bundle the heater H, as will subsequently be described. 70 and 14) to the unloading or clearance position (illus
trated by the full lines in FIGURE 18) the carrier unit
The tool carrier assemblies 246, 248 each include a sup
246 overtravels with respect to the carrier unit 248 to
porting plate or section 246a, 248a and a tool-mounting
thereby cause the abutments 59a, 52a on the respective
plate or section 2461;, 248b. The supporting sections 246,
bundling jaws 50, 52 to approach each other in a pre
248 are arranged at different levels with respect to each
other and havecoextensive rearward portions at which 75 scribed amount to achieve the bunching or bundling of
I12 stripped of the refractory coating and group the folds
3,033,241
13
the folds of the heater 1H.
14
322 which open the gripping jaws 42, 44 at station 34
for the prescribed interval until the gripping jaws come
into operative relation to the expandable mandrel (FIG
For this purpose, and as seen
best in FIGURES 16 to 18 inclusive, the supporting
section 246a of the carrier unit 246 for the bunching
tool 50 carries an overtravel plunger 276 which bears
against a depending abutment 278 carried by the sup
porting section 248a of the carrier unit 248. The over
travel plunger 276 is received within a complementary
bore 280 formed in the supporting section 246a. Sur
URE 19), close the jaws to engage the heater (FIGURES
20, 21) and close the jaws further to fold the heater
(FIGURE 22). The disc cams 320, 322 are engaged by
respective followers 324, 326 which are carried on pivoted
bell crank levers 328, 330. As seen best in FIGURE 12,
rounding the rearwardly extending plunger pin 276a is
the bell cranks 328, 330 are pivoted on a rocker shaft
a coil spring 282 which is effective via the plunger head 10 332. The bell crank 328 is urged into engagement with
the disc cam 322 by a spring 1334 and is coupled to a ?x
2761) to urge apart or separate the respective carrier
ture 336 carried on a rack drive shaft 338 journaled on
units 246, 248 in an amount su?icient to achieve the
the machine base or frame 60. The ?xture 336 is coupled
bunching action of the heater folds. The tendency of the
to the bell crank 328 by an adjustable tie rod 340. Simi
spring-biased plunger 276 to cause overtravel is con
trolled by the provision of a stationary blocking cam 284 15 larly, the bell crank 330 of the follower 326 is coupled to
the ?xture 336 on the rack drive shaft 338 by an adjust
which is ?xed within the housing 244 at a location beneath
able tie rod 342. The development of the cams 320, 322
the depending abutment 278‘. The camming surface
are complementary to each other and are selected to pro
284a of the blocking cam 284 is engaged by a roller 286
vide a constrained cam drive to the rack drive shaft 338
journaled on the under surface of the depending abut
ment 278. The development of the camming surface 20 which carries a pinion 344 (see FIGURE 2) in meshing
engagement with a rack 346 mounted on the machine
284a is selected such that the carrier units 246, 248
base 60 for vertical sliding displacement as a function of
are con?ned against overtravel under in?uence of the
the drive to the pinion 344. The rack 346 is connected
spring-biased plunger 276 in the pickup position (illus
to a lift plate 348 which is disposed beneath the actuator
trated by the dotted lines in FIGURE 18); and as the.
carrier units 246, 248 swing through the arcuate trans 25 136, speci?cally in contact with the roller 140. Accord
ingly, as successive heater transfer heads come into the
fer or unloading stroke into the clearance position
station 34, the rack 346 may be manipulated to open the
(illustrated by the full lines in FIGURE 18), the cam 284
jaws 42, 44, thereby enabling the jaws to move into strad
allows the prescribed overtravel of the carrier unit 246
dling relation to the mandrel 40 as a function of the side
relative to the carrier unit 248 to achieve the bundling
wise shifting of the carrier or turret 30. During such
function.
sidewise shifting the jaws are maintained open by the lift
In order to limit the maximum amount of overtravel
plate 348 which continues to make contact with the roller
of the carrier unit 246 relative to the carrier unit 248, the
‘140 on the actuator 136. After the jaws are allowed to
intermediate section 2460 carries a threaded adjustable
engage the heater H, and during the return of the turret
stop member 288. The adjustable stop member 288 ex~
tends through an appropriately tapped hole in its support
35 30 to its indexing position, the lift plate 348 is further
ing bracket 290 and is arranged to contact the mounting
lowered to allow the jaws 42, 44 to achieve the folding
of the heater H. Operation of the expandable mandrel 40
section 24% of the carrier unit 248 after the carrier unit
at the prescribed times in the machine cycle is accom- '
246 moves through a prescribed overtravel relative to the
plished through provision of a mandrel control shaft
carrier unit 248 as established in the ?rst instance by the
40 350 (see FIGURE 2) which is coupled to the cam shaft
cam 284 and its follower 286.
92 by bevel gearings 352, 354. The mandrel control shaft
Reference will now be made to FIGURES l and 2 for a
350 is connected by mechanisms, which are well under
description of the cam operating mechanisms for the re
stood per se, to the jaw control for the expandable and
spective concentric control shafts 258, 260. As seen best
contractable mandrel 40 for collapsing the same in timed
in FIGURES 1 and 2, two disc control cams 292, 294 are
carried on the extension of the main drive shaft 84 into the 45 relation to operation of the gripping jaws 42, 44 such
station casting 240. A rocker arm shaft 296 is carried by
the casting 240 in spaced parallel relation to the main
that successive formed heater windings H may be picked
up by the gripping jaws 42, 44 and axially carried off the
drive shaft 84 and pivotally supports rocker arms 298,
mandrel 40.
The gripping jaws 42, 44 are opened at the unloading
300.
The rocker arm 298 carries a cam follower 302
which rides on the camming surface 292:: of the control
cam and the rocker arm 300 carries a cam follower 304
which rides on the camming surface 294a of the control
cam 294. The rocker arm 298 is coupled via an adjust
able tie rod 306 to a coupling arm 308 ?xed to the inner
control shaft 258. Similarly, the rocker arm 300 is cou 55
pled via an adjustable tie rod 310 to a coupling arm 312
?xed to the outer control shaft 268. The developments of
the camming surfaces 292a, 294 of the respective control
cams 292, 294 are such as to open and close the bunching
tools 50, 52 at the appropriate time in the machine cycle
and to swing the bunching mechanisms through the pre
scribed arcuate traverse for transfer of the folded heater
H into the unloading position.
Referring now to FIGURES 1, 2 and 12, detailed refer
and bunching station in timed relation to the actuation
of the bunching tools 50, 52 by the face control cam
356 which has a follower roller 358 on its cam track
356a.
(See FIGURE 12.) The follower 358 is carried
on a follower plate 360 which is pivoted on the rocker
shaft 332 and is coupled via a tie rod 362 to an actuating.
lever 364 ?xed to an actuating shaft 366 journaled on
the machine base 60. Contiguous to the bundling and
transfer station 38, the actuating shaft 366 carries an
actuating or lift arm 368 which is rockable through a
prescribed are under control of the cam 356 to lift and '
lower the plunger 370 which is pivotally connected there
to. The plunger 370 is mounted upon the machine base
60 for vertical sliding movement and is positioned im
mediately beneath and in alignment with the actuator
ence will be made to the mechanisms for vertically dis 65 136 of the successive heater transfer heads 32 arriving
at the station 38. Accordingly, at the appropriate time
placing the actuator 136 for the heater transfer head 32
to open the heater gripping jaws 42, 44 at the loading or
heater-pickup station 34 for closing said jaws in two steps
to achieve heater stripping from the mandrel 40 and
heater folding, for again opening the heater gripping jaws 70
during the machine cycle, the plunger 370 may be lifted
to displace the actuator 136 and cause the gripping jaws
42, 44 to open against the biasing effect" of their asso
ciated springs to enable the heater. winding to be carried
away by the bundling tools 50, 52.
Reference will now be made to a typical cycle of
at the transfer and bunching station 38. An auxiliary cam
shaft 314 is journaled on the machine frame or base 60 at
operation of the present machine, to facilitate a more
right angles to the cam shaft 92 and is coupled to the cam
thorough understanding of the invention. This descrip
shaft 92 by bevel gearings 316, 318. As seen in FIGURE
12, the auxiliary cam shaft 314 carries two disc cams 320‘, 75 tion will deal with the progressive processing of one
l5
'i a
heater winding carried by one heater transfer head 32
through the several stations of the machine. However,
the automatic processing of the elemental wound heater
wires into the ?nal folded and bundled configuration for
it is to be understood that the mechanisms at the several
stations are operative during each index interval for the
sequential processing of the heaters H carried on the
further manufacturing operations and/or assembly with
in a cathode sleeve.
Advantageously, provision is made for the removal of
the coating material from the terminal portions of the
heater wire while in the unbundled condition such that
At the start of operation, a heater which is wound on
the terminal portions may be easily engaged. The basic
the mandrel 46 in its expanded condition is engaged by
machine design facilitates adding further operations in
the heater gripping jaws 42, 44, which are shifted by the
lateral shift mechanisms including the cam 88 from the 10 the pr cessing of the heater.
A latitude of modi?cation, substitution ‘and change is
indexing position illustrated in FIGURE 2 into the heater
intended in the foregoing disclosure and in some in
pick-up position wherein the jaws 42, 44 are at opposite
stances features of the invention will be used without
sides of the mandrel 40, and adapted to close on the
the corresponding use of other features. Accordingly,
heater winding. As detailed hereinbefore, the jaws 42,
it is appropriate that the claims be construed broadly
44 are spring-bias closed and are brought to the open
and in a manner consistent with the spirit and scope of
condition by the actuator 136, which in turn is lifted
the invention herein.
and lowered by the lift plate 348 which is actuated by
I claim:
the control cams 320, 32-2. During the return travel of
1. A multiple-station heater processing machine com
the turret 30 to its indexing position, the jaws 42, 44
with the heater winding supported therebetween are 20 prising a turret including at least one heater transfer
head having gripping jaws movable toward and away
moved closer together in a prescribed amount to achieve
from each other, means operatively connected to said
the folding of the opposite half portions of the heater
turret for intermittently indexing the same to advance
winding toward each other.
such transfer head stepwise into successive stations,
Thereupon, the folded heater supported by the gripping
heater winding mechanisms including a winding mandrel
jaws 42, 44 of the heater transfer head 32 are indexed
arranged radially outwardly of said turret at a ?rst sta
through the idle station into the coating removal station
tion, means for shifting said turret toward said heater
36. During indexing of the turret 3G and transfer of
winding mechanisms to bring said gripping jaws into a
the heater winding into the station 36, the abrading tools
several heater transfer heads 32.
‘
)
pick-up position relative to said winding mandrel, actu
46,
are in an elevated clearance position above the
general level of the turret, which elevated or clearance 30 ating means for closing said gripping jaws in said pick-up
position to engage a heater winding on said winding
position is established by the rise portion of the control
mandrel, the shifting means for said turret being ar
cam 296 via the follower 2G8 carried by the vertical Ways
ranged to return said turret to a clearance position rela
164-, 165 supporting the housing 162. After the arrival
tive to said heater winding mechanisms wherein said
of the heater at the station 36, the housing 162 is lowered
to bring the abrading tools 46, 48 into the operative DO U! turret is indexed to advance said transfer head into a
Thereupon the abrading tools close in
further station, heater bundling and transfer-ring mecha
nisms at said further station including bundling jaws
a prescribed amount as established by the cam 184 and
movable toward and away from each other and relative
position at opposite sides of the terminal portions 11;, 112
of the heater.
the separation-limiting plate 210. In the closed position,
to said transfer head, actuating means for moving said
the abrading tools 46, 48 which are constantly being 4.0 bundling jaws toward said transfer head and into en
gagement with said heater winding, and operating means
reciprocated by the eccentrically driven arm 224, remove
for moving said bundling jaws toward each other during
the coating to expose the heater wire W. After the coat
movement of said bundling jaws into a clearance posi
ing is removed, the abrading tools 46, 48 are again
opened under the in?uence of the biasing springs 178,
tion relative to said turret to bunch the turns of said
heater winding.
189 and the control of the cam 184; and in this open
position, the housing 162 carrying the tools is lifted by
2. A multiple-station heater processing machine com
the cam 206 to the clearance position in which the turret
is free to index to bring the heater transfer head through
the several idle stations and into the bundling and un
prising a turret including at least one heater transfer head
having gripping jaws, movable toward and away from
each other, means operatively connected to said turret
for intermittently indexing the same to advance such
transfer head stepwise into successive stations, heater
winding mechanisms including a winding mandrel ar
ranged radially outwardly of said turret at :1 ?rst sta
tion, means for shifting said turret toward said heater
loading station 38.
During the period of indexing, mechanisms at the
station 35'} are in the clearance position (i.e. the full line
position illustrated in FIGURE 18), and only after the
indexing interval is completed do the carriers 246, 24-8
and their respective bunching tools 59, 52 swing inwardly
winding mechanisms to bring said gripping jaws into a
pick-up position relative to said winding mandrel, actu
ating means for closing said gripping jaws in said pick-up
to bring the tools, which are open, into position at the
outer sides of the gripping jaws 42, 44. The bunching
tools 543, 52 then close onto the heater, moving into the
spaces between the respective jaw parts 42a, 42b and
44a, 44b. After the bunching tools engage and support
the heater, the lift rod or plunger 370 moves the actuator
136 to spread the gripping jaws 42, 44 apart, thereby
releasing the heater H for the bundling and ?nal transfer
operation.
The carrier units 246, 243 are rocked out
wardly through the prescribed swing by the control cam
position to engage a heater winding on said Winding
mandrel, the shifting means for ‘said turret being arranged
60
to return said turret to a clearance position relative to
said heater winding mechanisms wherein said turret is
indexed to advance said transfer head into a second sta
tion, coating stripping mechanisms at said second sta
tlon including stripping jaws movable toward and away
65 from each other and relative to said transfer head, actu
294 which is effective via the outer control shaft 260;
ating means for moving said stripping jaws toward said
and during this travel the necessary overtravel is im
transfer head at said second station and into engagement
parted to the tool 59 relative to the tool 52 to achieve
with terminal portions of said heater winding, operating
the bundling or bunehing of the heater. It will of course
means for reciprocating said stripping jaws when in en
be appreciated that the cam 294 may be designed to
70 gagement with said terminal portions to strip the coating
spread the abutments 59a, 52a after the bundling opera
from said heater winding, the actuating means for strip
tion is achieved to facilitate removal of the bundled
ping jaws being arranged to move said stripping jaws
heater from the tools 50, 52.
into a clearance position relative to said turret where
From the foregoing it will be appreciated that the
upon said turret is indexed to advance said transfer head
present machine is exceptionally versatile and enables 75 into a third station, heater ‘bundling and transfer-ring
3,033,241
17
18
mechanisms at said third station including bundling jaws
movable toward and away from each other and relative
to said transfer head, actuating means for moving said
bundling jaws toward said transfer head and into end
moving said stripping mechanism toward said transfer
head and into engagement with terminal portions of said
heater winding, the actuating and operating means for
stripping mechanisms being arranged to move same into
wise engagement with said heater winding, and operating
a clearance position relative to said turret whereupon said
means for moving said bundling jaws toward each other
during movement of said bundling jaws into a clearance
position relative to said turret to bunch the turns of said
further station of said machine.
heater winding.
3. A multiple-station heater processing machine com
turret is indexed to advance said transfer head into a '
6. A multiple-station heater processing machine com
prising a turret including at least one heater transfer
10 head, means operatively connected to said turret for
prising a carrier including at least one heater transfer
head, means operatively connected to said carrier for
moving the same to advance said transfer head into suc
cessive stations, heater winding mechanisms at a ?rst
station, means for moving said transfer head into a pick 15
indexing the same to advance said transfer head stepwise
into successive stations, heater winding mechanisms ar
ranged outwardly of said turret at a ?rst station, means
for moving said turret toward said heater winding mecha
nisms to bring said transfer head into a pick-up position
relative to said heater winding mechanisms, actuating and
operating means for engaging said transfer head with
said heater winding on said winding mandrel, the mov
ing means for said turret being arranged to return said
up position relative to said heater winding mechanisms,
actuating and operating means for engaging said transfer
head with said heater winding on said winding mandrel
and for thereafter folding the turns of said heater wind
ing, coating stripping mechanisms at a second station, 20 turret to a clearance position relative to said heater wind
ing mechanisms wherein said turret is indexed to advance
actuating and operating means for moving said stripping
said transfer head into a second station, the actuating
mechanism toward said transfer head and into engage
and operating means for said transfer head being opera
ment with terminal portions of said heater winding for
tive to fold the turns of said heater winding, coating strip~
removing coating material therefrom, heater bundling
and transferring mechanisms at a third station, and actu 25 ping mechanisms at said second station movable relative
to said transfer head, actuating and operating means for
ating and operating means for moving said bundling and
moving said stripping mechanism toward said transfer
transferring mechanisms toward said transfer head and
head and into engagement with terminal portions of'said
into engagement with said heater winding, the actuating
heater winding, the actuating and operating means for
and operating means for said bundling and transferring
stripping mechanisms being arranged to move same into
mechanisms being effective to bundle the folds of said
a clearance position relative to said turret whereupon
heater winding.
said turret is indexed to advance said transfer head into
4. A multiple-station heater processing machine com->
a third station, heater bundling and transferring mecha
prising a turret including at least one heater transfer
head, means operatively connected to said turret for mov
ing the same to advance said transfer head into succes
sive stations, heater winding mechanisms arranged out
nisms at said third station movable relative to said trans
35
fer head, and actuating and operating means for moving
said bundling and transferring mechanisms toward said
wardly of said turret at a ?rst station, means for shifting
said turret toward said heater winding mechanisms to
transfer head and into engagement with said folded'heater
winding, the actuating and operating means for said
means for said turret being arranged to return said turret
for sidewise shifting movement, a turret, means mounting
bundling and transferring mechanisms being effective to
bring said transfer head into a pick-up position relative
to said heater winding mechanisms, actuating and oper 40 bundle the folds of said folded heater winding.
7. A machine for the processing of heater windings
ating means for engaging said transfer head with said
comprising a carriage, means mounting said carriage
heater winding on said winding mandrel, the shifting
said turret on said carriage for stepwise indexing about
to a clearance position relative to said heater winding
mechanisms after engagement of said transfer head with 45 a vertical axis, at least one heater-transfer head carried by
said turret having movable and normally open gripping
said heater winding wherein said turret is indexed to
jaws, heater winding mechanisms at a ?rst machine sta
advance said transfer head into a second station, transfer
tion including an expanded mandrel for supporting a
head being operative to fold the turns of said heater wind
heater winding and adapted to collapse to enable axial‘
ing, heater bundling and transferring mechanisms at a
removal of said heater winding, actuating means opera~
further station movable relative to said transfer head,
tively connected to said carriage for shifting same with
and actuating and operating means for moving said bun
said heater-transfer head in said ?rst machine station to
dling and transferring mechanisms toward said transfer
bring said normally open gripping jaws through a pre
head and into engagement with said folded heater wind
scribed forward stroke into a pick-up position straddling
ing, the actuating and operating means for said bundling
opposite
side of said mandrel, actuating means operatively
and transferring mechanisms being effective to bundle 55
connected to said gripping jaws and engaged and timed
the folds of said folded heater winding.
to close said‘ gripping jaws into gripping engagement with
5. in a multiple-station heater processing machine, a
the
heater winding on said expanded mandrel, the actu
turret including at least one heater transfer head, means
ating
means for said carriage being arranged and timed to
operatively connected to said turret for indexing the same
to advance said transfer head stepwise into successive 60 move said gripping jaws through a return stroke while
in gripping engagement with said heater winding for
stations, heater winding mechanisms arranged outwardly
axially removing said heater winding from said mandrel. of said turret at a ?rst station, means for moving said
8. A machine for the processing of heater windings '
turret toward said heater winding mechanisms to bring
comprising a carriage, means mounting said carriage for
said transfer head into a pick-up position relative to said
sidewise shifting movement, a turret, means mounting said
heater winding mechanisms, actuating and operating
turret on said carriage for stepwise indexing about .a ver
means for engaging said transfer head with said heater
tical axis, at'least one heater-transfer head carried, by
winding on said winding mandrel, the moving means for
said turret having movable and normally open gripping
said turret being arranged to return sai turret to a clear
jaws, heater winding mechanisms at a ?rst machine sta
ance position relative to said heater winding mechanisms
wherein said turret is indexed to advance said transfer 70 tion including an expanded mandrel for supporting a
coated heater winding-and adapted to collapse to enable‘
head into a second station, the actuating and operating
axial removal of said heater winding, actuating means op
means for said transfer head being operative to fold the
eratively connected to said carriage for shifting same with
turns of said heater winding, coating stripping mecha
said heater-transfer head in. said ?rst machine station/to
nisms at said second station movable relative to said
transfer head, and actuating and operating means for 75 bring said normally open gripping jaws through a pre.-‘
3,033,241
19
scribed forward stroke into a pick-up position straddling
opposite sides of said mandrel, actuating means opera
tively connected to said gripping jaws and engaged and
timed to close said gripping jaws into gripping engage
ment with the heater winding on said expanded mandrel,
the actuating means for said carriage being arranged and
timed to move said gripping jaws through a return stroke
20
pick-up position wherein said gripping jaws are adapted
to close on the heater on said expanded mandrel, actuat
ing means operatively connected to said carrier for mov
ing said carrier from said indexing position into said
pick-up position, and actuating means operatively con
nected to said gripping jaws for moving said gripping
jaws toward each other in said pick-up position for engag~
ing the heater on said expanded mandrel.
while in gripping engagement with said heater winding
for axially removing said heater winding from said man
13. In a machine for the manufacture of a heater in
drel, the actuating means for said gripping jaws being 10 cluding a normal expanded mandrel upon which a heater
arranged and timed to further close said gripping jaws
is wound, a carrier, a heater-transfer head having gripping
after axial removal of said heater winding from said man
jaws supported on said carrier, means mounting said
drel to fold said heater winding.
gripping jaws for movement toward and away from each
9. A machine according to claim 8, including coating
other, means mounting said carrier for movement from
removal mechanisms at a further machine station com
an indexing position wherein said carrier is adapted to
prising a pair of normally open abrading tools, means
transfer a heater supported by said gripping jaws to a
mounting said abrading tools for movement from a clear
pick-up position wherein said gripping jaws are adapted
ance position relative to said turret through a prescribed
forward thrust to bring said abrading tools into an opera
to close on the heater on said expanded mandrel, actuat
ing means operatively connected to said carrier for mov
tive position at opposite sides of terminal portions of the 20 ing said carrier from said indexing position into said
heater winding when brought into said further machine
pick~up position, and actuating means operatively con
station by said heater-transfer head, actuating means for
nected to said gripping jaws for moving said gripping
moving said abrading tools from said clearance position
jaws toward each other in said pick-up position for engag
into said operative position and for bringing said abrad
ing the heater on said expanded mandrel, the actuating
ing tools into engagement with said terminal portions of
means for said carrier being arranged to move said car
said heater winding, and means for reciprocating said
rier from said pick-up position into said indexing position
abrading tools relative to each other for removal of the
when said expanded mandrel is collapsed to thereby re
coating on said terminal portions of said heater winding.
lease the heater from said expanded mandrel, the actuating
10. A machine according to claim 9 including heater
means for said gripping jaws being arranged to move
bundling and unloading mechanisms at a still further 30 said gripping jaws further toward each other during
machine station comprising a pair of normally open
movement of said carrier from said pick-up position into
bundling tools, means mounting said bundling tools for
said indexing position to thereby fold the heater.
movement from a clearance position relative to said
turret through a prescribed forward thrust to bring said
bundling tools into an operative position at opposite sides
of said heater winding when brought into said still further
machine station by said heater-transfer head, actuating
means for moving said bundling tools from said clearance
14. In a machine for the manufacture of a heater in
cluding a normal expanded mandrel upon which a heater
is wound, a carrier, a heater-transfer head having gripping
means supported on said carrier, means mounting said
carrier for movement into a pick-up position wherein
said gripping means is engageable with the heater on said
position into said operative position, operating means for
expanded mandrel, actuating means operatively connected
closing said bundling tools into supporting relation with 40 to said carrier for moving said carrier into said pick-up
said heater winding, the actuating means for said gripping
position, actuating means operatively connected to said
jaws in timed relation to closing of said bundling tools
gripping means for engaging said gripping means with
whereby said heater winding may be supported by said
the heater on said expanded mandrel, the actuating means
bundling tools, and means operative during return move
ment of said bundling tools into said clearance position ,
for moving said bundling tools relative to each other to
bunch the folds of said heater winding.
11. A machine according to claim 8 including heater
bundling and unloading mechanisms at a further machine
station comprising a pair of normally open bundling tools,
means mounting said bundling tools for movement from
a clearance position relative to said turret through a
prescribed forward thrust to bring said bundling tools
into an operative position at opposite sides of said heater
winding when brought into said further machine station
by said heater-transfer head, actuating means for moving
said bundling tools from said clearance position into said
operative position, operating means for closing said
bundling tools into supporting relation with said heater
winding, the actuating means for said gripping jaws of
said heater‘transfer head being arranged to open said
gripping jaws in timed relation to closing of said bundling
tools whereby said heater winding may be supported by
said bundling tools, and means operative during return
movement of said bundling tools into said clearance posi
tion for moving said bundling tools relative to each other
to bunch the folds of said heater winding.
12. In a machine for the manufacture of a heater in
cluding a normal expanded mandrel upon which a heater
is wound, a carrier, a heater-transfer head having gripping
jaws supported on said carrier, means mounting said
gripping jaws for movement toward and away from each
other, means mounting said carrier for movement from
an indexing position wherein said carrier is adapted to
transfer a heater supported by said gripping jaws to a
for said carrier being arranged to move said carrier from
said pick-up position into an indexing position when said
expanded mandrel is collapsed to thereby release the
heater from said expanded mandrel, the actuating means
for said gripping means being arranged to move said
gripping means to laterally engage opposite portions of
the heater convolutions to fold the heater, and means for
periodically indexing said carrier.
15. In a machine for the manufacture of a heater, :1
heater-transfer head adapted to support a heater wind
ing, and heater bundling and unloading mechanisms com
prising a pair of normally open bundling tools, means
mounting said bundling tools for movement from a clear
ance position relative to said heater-transfer head through
a prescribed forward movement to bring said bundling
tools into an operative position at opposite sides of the
heater winding supported by said heater-transfer head,
actuating means for moving said bundling tools from said
clearance position into said operative position, operat
ing means for closing said bundling tools into supporting
relation with the heater winding on said heater-transfer
head, and means operative during return movement of
said bundling tools into said clearance position for mov
ing said bundling tools relative to each other to bunch
the folds of said heater winding.
16. In a machine for the manufacture of a heater, a
heater-transfer head including movable gripping jaws
adapted to support a heater winding and actuating means
for said gripping jaws, and heater bundling and unload
ing mechanisms comprising a pair of normally open bun
dling tools, means mounting said bundling tools for move
ment from a clearance position relative to said heater
3,033,241
2%
transfer head through a prescribed forward movement to
bring said bundling tools into an operative position at
opposite sides of the heater winding supported by said
22
ing mechanisms at one station, means for moving said
transfer head into a pick-up position relative to said
heater winding mechanisms, actuating and operating
heater-transfer head, actuating means for moving said
means for moving said heater-engaging jaws of said trans
bundling tools from said clearance position into said CI fer head into contact with said heater winding on said
operative position, operating means for closing said bun
winding mandrel and for thereafter removing said heat
dling tools into supporting relation with said heater wind
er winding from said winding mandrel, heater bundling
ing, the actuating means for said gripping jaws of said
and transferring mechanisms at a further station, and ac
heater-transfer head being arranged to open said grip
tuating and operating means for moving said bundling
ping jaws in timed relation to closing of said bundling 10 and trasferring mechanisms toward said transfer head
tools whereby said heater winding may be supported by
and into engagement with said heater winding, the actuat~
said bundling tools, and means operative during return
ing and operating means for said bundling and transfer
movement of said bundling tools into said clearance po
ring mechanisms being effective to bunch the folds of said
sition for moving said bundling tools relative to each
heater winding.
other to bunch the folds of said heater winding.
21. In a machine for the manufacture of a heater in
17. In a machine for the manufacture of a heater, a
cluding a normal expanded mandrel upon which a heater
winding mandrel adapted to have a heater wound there
is wound, a carrier, a heater-transfer head having grip
on, a carrier, a pair of heater transfer jaws, means mount
ping jaws supported on said carrier, means mounting said
ing said heater-transfer jaws on said carrier for movement
gripping jaws for movement toward and away from each
toward and away from each other, further means mount 20 other, means mounting said carrier for movement from
ing said carrier for movement relative to said winding
a clearance position to a pick-up position wherein said
mandrel to bring said heater~transfer jaws into a pick
gripping jaws are adapted to closed on the heater on said
up position relative to said winding mandrel, actuating
expanded mandrel, carrier actuating means operatively
means for moving said carrier to bring said heater trans
connected to said carrier for moving said carrier from
fer jaws into said pick-up position, and further actuating
means for moving said heater transfer jaws toward said
winding mandrel when in said pick-up position for en
gaging said heater.
said clearance position into said pick-up position, and
jaw actuating means operatively connected to said grip
ping jaws for moving said gripping jaws toward each
other in said pick-up position for engaging the heater on
18. In a machine for the manufacture of a heater, a
said expanded mandrel, said carrier actuating means being
winding mandrel adapted to have a heater wound there 30 arranged to move said carrier from said pick-up position
on, a carrier, a pair of heater transfer jaws, means mount
into said clearance position when said expanded mandrel
ing said heater-transfer jaws on said carrier jaws for
movement toward and away from each other, further
means mounting said carrier for movement relative to
said winding mandrel to bring said heater transfer jaws
from a clearance position into a pickup position relative
to said winding mandrel, actuating means for moving said
carrier to bring said heater-transfer jaws into said pick-up
position, and further actuating means for moving said
is collapsed to thereby release the heater from said ex
panded mandrel.
22. In a machine for the manufacture of a heater in
cluding a normal expanded mandrel upon which a heater
is wound, a carrier, a heater-transfer head having grip
ping jaws supported on said carrier, means mounting said
gripping jaws for movement toward and away from each
heater-transfer jaws toward said winding mandrel when 40 other, means mounting said carrier for movement from
a clearance position to a pick-up position wherein said
in said pick-up position for engaging said heater, said
gripping jaws are adapted to close on the heater on said
further actuating means being operative to move said
expanded mandrel, carrier actuating means operatively
heater transfer jaws relative to each other to fold said
connected
to said carrier for moving said carrier from
heater during movement from said pick-up position to
said clearance position into said pick-up position, and
ward said clearance position.
jaw actuating means operatively connected to said grip
19. A multiple-station heater processing machine com
ping
jaws for moving said gripping jaws toward each
prising a carrier including at least one heater transfer
other in said pick-up position for engaging the heater on
head, means operatively connected to said carrier for
said expanded mandrel, said carrier actuating means being
moving the same to advance said transfer head into suc
cessive stations, heater winding mechanisms at one sta 50 arranged to move said carrier from said pick-up position
into said clearance position when said expanded mandrel
tion, means for moving said transfer head into a pick-up
is collapsed to thereby release the heater from said ex
position relative to said heater winding mechanisms, ac
panded mandrel, said jaw actuating means being arranged
tuating and operating means for engaging said transfer
to move said gripping jaws further toward each other
head with said heater winding on said winding mandrel
during movement of said carrier from said pick-up posi
and for thereafter folding the turns of said heater wind
tion into said clearance position to thereby fold the heater.
ing, heater bundling and transferring mechanisms at a
flu'ther station, and actuating and operating means for
References Cited in the ?le of this patent
moving said bundling and transferring mechanisms toward
UNITED STATES PATENTS
said transfer head and into engagement with said heater
winding, the actuating and operating means for said bun 60 1,928,786
Huyett ________________ __ Oct. 3, 1933
dling and transferring mechanisms being effective to bun
1,958,870
Stuart _______________ __ May 15, 1934
dle the folds of said heater winding.
2,034,653
Flaws _______________ __ Mar. 17, 1936
20. A multiple-station heater processing machine com
2,380,320
La France ____________ __ July 10, 1945
prising a carrier including at least one heater transfer
2,448,916
Schneider et a1 _________ ._.. Sept. 7, 1948
head having heater-engaging jaws, means operatively con
nected to said carrier for moving the same to advance
said transfer head into successive stations, heater wind
2,677,172
Oakley _______________ __ May 4, 1954
2,768,424
Andrus ______________ __ Oct. 30, 1956
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