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Патент USA US2410345

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Oat. 29, 1946.
2,410,345 I
Filed Aug. 4, 1942
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Patented Oct. 29, i946
Bay A. Hinkley, Corning, N. Y., assignor to Corn
ing Glass Works, Corning, N. Y., a corporation
of New York
Application August 4, 1942, Serial No. 453,583
3 Claims. (Cl. 49—1)
The present invention relates to glass working
apparatus and in particular to apparatus for
perforating and tubulating'glass articles. It has
been the common practice in the past, while ro
tating an article, to heat a small area at the
axial center of rotation and by means of a bait
to draw out the heated area to form a perfora
the burner arrangement employed and identi
fying the various ware working positions;
Fig. 14 is a diagrammatic view illustrating the
timing circuits and pneumatic equipment directly _
controlled thereby;
Fig. 15 is a piping diagram of equipment in
directly controlled by the timing circuits;
tion therein and then, while the article is being
Fig. 16 is a view similar to that of Fig. 8 show
rotated, to seal a tube to the glass forming the
ing a further modi?ed form of the assembly;
boundary of a perforation so made. Although 10
Fig. 17 is a plan view of a fragment of the base
tubulation can be satisfactorily effected in this
of the machine equipped with a movable track
fashion considerable skill and time are required.
used in conjunction with the assembly of Fig. 16;
The prime object of the present invention is a
Fig. 18 is a sectional view on line l8—|8 of Fig.
machine which automatically performs the neces
17; and
sary perforating and tubulating operations.
Fig. 19 is a diagrammatic development of all
The invention by way of example is illustrated
tube chucks of the assembly and their associated
in the form of a machine suitable for perforating
supporting and actuating cam tracks.
and tubulating the upper bowl of a vacuum type
General description
coffee maker.
In the drawings
The machine, in brief, comprises a pair of ver
Fig. 1 is a, plan view of the machine with cer
tically aligned turrets 23 and 16 (Fig. 2) equipped
tain parts broken away;
with a plurality of vertically aligned sets of bowl
Fig. 2 is a sectional elevation taken on lines
and tube chucks successively indexed at various
2—2 of Fig. 1;
working positions (Fig. 13). Bowls are held in
Fig. 3 is an elevational view, partly in section, 25 an inverted position with the tubes to be at
of a pulling mechanism comprising a part of the
tached thereto‘arranged thereover. Each bowl
perforating equipment of the machine;
after leaving a loading position in at least one
Fig. 4 is an enlarged sectional elevation of a
indexed position is pre-heated to plasticity in
fragment of Fig. 3;
the area it is to be perforated. In a subsequent
30 position the plastic glass is pulled away from
Fig. 6 is a plan view of Fig. 3;
the bowl proper by a pulling unit it“) of a pull
Fig. '7 is a fragmentary View, in elevation, of
ing mechanism (Figs. 1 and 3) which swings the
the apparatus of Figs. 3 and 6 seen when looking
pulling unit I30 into vertical alignment with
in the general direction of arrows 71-‘! applied
the heated area of the bowl and then lowers
Fig. 5 is a view taken on line 5—5 of Fig. 3;
to Fig. 6;
Fig. 8 is a sectional elevation through one of
twelve similar ware chuck assemblies and appa
ratus with which the assembly is associated when
at the perforating position of the machine;
Fig. 9 is a sectional elevation of one of twelve
similar tube chuck assemblies which are arranged
over the respective chuck assemblies of Fig. 8;
35 the pulling unit into relatively close proximity
to the heated wall area of the bowl. The pulling
unit is then lowered into contact with the plastic
glass and is immediately raised and. by suction
carries with it the central wall portion of the
plastic glass while attenuating the plastic glass
connecting it to the remainder of the wall. While
the pulling operation is taking place burners
Fig. 9a is an enlarged view, partly in section,
direct intense ?ames toward the attenuated glass
of the lower end of a tube chuck assembly;
and, assisted by a high frequency are created be
Fig. 9b is a view taken on line 9b—9b of Fig. 45 tween the b-urners, quickly eifect complete sev
erance between the withdrawn glass and the bowl
Fig. 10 is a sectional plan view taken on line
proper to produce a perforation through the
Ill-l0 of Fig. 9;
bowl wall. After severance the pulling mecha
Fig. 11 is a view similar to that of Fig. 8 but
nism swings the pulling unit to a cullet discharge
of a modi?ed form of assembly and taken at a 50 position where the cullet is ejected therefrom.
position of the machine where reshaping of the
In a subsequent indexed position the tube, which
passage between the ware body and tube occurs;
is arranged over the aperture in the bowl, is
Fig. 12 is a sectional plan view taken on line
lowered into contact with the bowl and fusion
l2—l2 of Fig. 11;
Fig. 13 is a diagrammatic plan view illustrating 55 thereto is effected. Before the tubulated unit
leaves this indexed position a bore shaping imple
inent is, in certain modi?cations of the inven
tion, projected from the interior of the bowl into
its aperture to impart a desired shape to the
bowl and tube bore where the bowl and tube are
joined. As the tubulated bowl starts to move to
its next indexed position the tube chuck is very
slightly raised to effect a pulling of the seal
rounding collar 39 and at the other end has a
roller 42 co-operative with a cam track 43 (Figs. 2
and 13) to effect the compression of spring 35 as
the chuck assembly 35 passes through the “load—
ing and unloading” Zone (Fig. 13). The shaft
38 serves the additional purpose of holding the
platform properly centered- and also serves as a
conduit through which air may be supplied to
between the bowl and tube. In the next one or
the bowl 32 to establish positive air pressure
more indexed positions annealing ?ames are di
rected onto the bowl and tube in the vicinity 10' therein for a purpose explained hereinafter.
The alternative form of chuck assembly shown
of the seal. On subsequent indexing movements;
in. Fig. 11, comprises a tubular shaft 5! with an
the tube chuck is opened and raised clear. of
extension. 5|’ at itstop end surrounded by a ver
the tube so that the tubulated bowlis held solely
movable» sleeve 52 equipped with a hand
by the bowl chuck before being. indexed into
loading and unloading positions. As the bowl 15 wheel 53' and. having a plurality of chuck jaws
enters these latter positions the bowl chuck is
automatically opened to enable an attendant to
readily remove the tubulated bowl therefrom and»
to replace it with another. The attendant at
these same positions manually opens the tube 20
54 pivoted thereto. Shaft 5i at its lower end
carries a pulley 33' for rotating the chuck. The
ware seizing ends of jaws 54 pass through slots
in the periphery of a platform 55 which rests on
extension 5|’ and is secured to the upper end of
a tubular shaft 55 and‘ passes down through the
bore of shaft 5|. Jaws 54 are normally held by
gravity in gripping relation with the rim of a
chucks to reload‘ them.
Basic units of the machine
bowl 58, placed upon platform 55. Bowl 58 is
The machine proper is mounted on a. carriage
bed H (Figs. 1 and 2) and has mounted thereon 25 properly centered on platform 55. by a center
ing element 55’ secured thereto. The chuck jaw
a main base 12, a motor 53 for driving equip
carrying sleeve 52 may be manually lifted by
ment carried by base l2, an‘ auxiliary base 14
(Figs. 1,. 3, and 6)‘ supporting the pulling unit
means of hand wheel 53‘ to open the chuck as
sembly. A wheel lifting yoke 69 (Figs. 11 and 12)
employed in perforating a glass article, and a
timer unit 15 (Fig. l) with an associated drive 30 is, however, arranged immediately below wheel
53 and is provided with 3, depending arm 5i ver
motor [6 for the control of indexing and other
tically movable in a guide assembly 51. Arm
operations of the machine.
6! at its lower end is equipped with a- roller
The base ‘2' (Fig. 2) supports a cylindrical
62 co-operative with'a‘cam track 63. to antomatie
casting 20 having a channel 2| at its upper end
cally lift wheel 53 to open the chuck during
for receipt of a circular track 22 formed integral
its travel through the “unloading and loading”
with the lower and outer edge of the hub of a
zone. The chuck assembly ofv Fig. 11 is also
turret 23. Attached to the lower inner ‘edge of
equipped with a bore reshaping implement 44
the hub of turret 23 is a drive-drum 24 provided
attached to the upper end of a tubular shaft
with twelvedrive cones 25 adaptedto be engaged
45 passing through the bore of shaft 56. The
in succession by a drive cam 26 driven by motor
lower end of shaft 45 is surrounded by a spring
B to turn the turret 23 in step-by-step fashion.
as compressed to assist gravity in restoring the
At equally spaced intervals about the rim of
implement 44 to the position shown after. having
turret 23. (Figs. 2 and 8) are mounted suitably
beenraised to perform ashaping operation. The
bushed housings 28 each of which supports the
outer sleeve 29 of an article chuck assembly shown 45 raising of shaft 45 is effected immediately after
a tubulating operation by arm 4-1’ of a pneumatic
in detail in Fig. 8. Each sleeve 28 at its upper
151 (Fig. 11) under control of a magnetic
endcarries a bowl. cage 3| whose upper end serves
valve £8 as will be further described hereinafter.
as- the fixed jaw of the chuck assembly. Sleeve
The third form of bowl chuck assembly, shown
29 at its lower end carries a pulley 33 for rotat
Fig. 16, is of the same general‘ type as shown
ing the chuck. The movable jaw of the chuck
in Fig. 8, modi?ed to enable the used a reshap
assembly comprises a platform 35 which rests on
ingimplement lit’ and to accommodate a different
a spring 35 in turn resting on the lower inner
style bow-l ‘E5. The cage
is‘ attached to the
surface of cage 3!. Platform 34 is provided
upper end of a tubular shaft 5” and‘ has a yoke
with a resilient cushion 35 to enable positive air
shaped jaw 2‘? which serves to accurately center
pressure to be established within the bowl as 55
bowl ‘M on platform 3d". Shaft 512 at the lower
will be brought out later and is also surrounded
end‘ carries a pulley 332'for rotating the chuck.
with a ware centering rim 3?. With spring 55v
Implement all’ is carried on the upper end of a
substantially compressed a glass article such as
tubular shaft 45' normally supported in the posi
a bowl 32 may be placed in cage 3i with the open
ticn shown by means‘of a sleeve 49 secured to
end of the bowl resting on cushion 35 and within
shaft 45' and resting upon a spring 55. The
the con?nes of centering rim. 31. When pressure
lower end of shaft 1&5’ has threaded'thereon a col
on- spring 35 is reduced sui?ciently the article
lar 89 adapted to be engaged and raised by the
becomes clamped between platform 35 and the
arm ll?’ (Fig. 11) to perform the shaping oper
upper or ?xed jaw portion of cage 3| under com
ation in the same manner as is implement M
pression of spring 35. The extent of compres 65 of the chuck assembly of Fig. 11. To enable load
sion of spring 35 required for loading the chuck
ing of the chuck assembly of Fig. 16a movable
can be effected by manually exerting downward
double rail track 84 (Figs. 17 and‘ 18) is provided
pressure on platform 34 as the ware is being
betweenthe rails of which collar BS'travels while
placed in‘ the chuck. However spring 35 may
passing through the “loading and‘ unloading”
be compressed automatically as by tubular shaft 70 position and one of the adjacent positions. Track
38 which passes through the bore of sleeve 29
34 is attached to suitable, vertically movable guide
with its upper end secured to platform 34 and,
posts 81 and is lowered by means of a pneumatic
near its lower end, is equipped with a groovedv col
unit 81 under control of a valve 90 '(Fig. 14) and
lar 39. A lever 4i), pivoted intermediate its ends,
a pilot valve 9!!’ immediately after the‘ machine
is provided at one end with a yoke 41 partly sur
has indexed to lower element M’ into the space
immediately above a bushing 73 surrounding
shaft 45', thereby enabling an attendant to read
ily remove a ?nished bowl 14 from the chuck or.
to load the same. Just before the machine in
dexes again the pneumatic unit 8?, under control
of valve 9!’) and a ‘pilot valve 982, raisestrack
84 permitting the shaping element to again rise
to the position shown while preventing the un
Tube chucks
Attached to the upper surface of turret 23 (Fig.
2) ‘is a spacer '55 which supports turret ‘i6 hav
ing tube chuck assembly supports ‘El attached to
its rim (Figs. 1, 2, and 9). Each support Ti
carries vertically disposed guide rods 78, the upper
ends of which have rigidly secured thereto a
positions A—E.
Belt 71
also passes .over a drive
pulley I52 (Figs. '1 and 7) to impart'a turning
movement to pulling unit I30 (Figs. 3 and'll) as
will be described hereinafter.
' .
Heating equipment
In order to avoid unnecessary complication of~
controlled upward movement thereof by spring
(Fig. 13), while belt 10 passes over. pulleys 33, of
the bowl chuck assemblies as they pass ‘through
v10 the drawings the heating equipment has merely
been diagrammatically illustrated in Fig. 13 ‘as
comprising pairs of burners I99, I27 and I54 and
of pairs of burner-electrodes II I] and I29. The
burners I09 at the position designated A are pow
sitioned to direct intense ?ames towards abowl
bulge 32'. Burner-electrodes IIEJ at position 13
direct intense ?ames toward the bulge 32’ to sever
it from the body of the bowl while the pulling unit
is exerting a pull on the bulge as brought out
bearing housing 79 rotatably supporting the
splined tubular shaft 89 of a tube chuck assem 20 hereinafter. At the same time a high frequency
bly. The shaft 89 is splined in a pulley 83 by
electric arc is established between burner-elec
trodes IIB to assist the ?ames in their severing
means of which it is rotated at times, as will be
function. Burners I21 at position C are set to
brought out later. Intermediate its ends shaft
direct ?ames toward the rim of ‘the aperture
80 is rotatab-ly supported by a bracket 85 which
is held in alignment by guide rods ‘l8. Bracket 25 formed by the removal of bulge 32’ while the bowl
was at position B. Burners at positionjC (not
shown) but similar to burners I2‘! are preferably
(Figs. 1 and 19) to regulate the height of shaft
provided to heat the lower end of a tube ‘82 aligned
80 as required during its travel about the axial
center of the machine. Attached to the lower end
over the bowl 32. The'burner-electrodes I29 at
of shaft 89 is a chuck bell 9| having within it 30 position D, which are connected in multiple, with
85 carries a roller 98 which travels on, a track 88
a chuck jaw carrier 92 from which a number of
burner-electrodes ,I I0, apply heat both by flame
jaws 93 are loosely suspended within the bell
which is slotted to provide guides which force
and electric arc to effect fusion of the tube 82to
the bowl 32. Application of high frequency cur—
the jaws to move toward one another as they are
rent between burner-electrodes II!) and between
raised into the bell by carrier 92. The carrier 35 burner-electrodes I29 may begin accordance with
methods taught in an article by E. M._Guyer en-'
92 is attached to a tubular coupling member
titled “High frequency electric glass welding,”
95~which in turn is connected with an actuating
published in volume 79, 1941, of Transactions of
rod 9‘! which extends upward through the splined
shaft 80.
the Electrochemical Society. The burners’ I54 are
merely provided for annealing the seal.
The chuck jaws 93 are normally held in posi»
tion to resiliently hold a tube 82‘when inserted
Hole pulling mechanism I
therebetween by a spring 98 which surrounds the
upper end of rod 51 and is held partly compressed
The base It (Figs. 1, 3, and 6) has an internal
between a bushing 99 and a rod actuating but
web II I provided with a central hub I I2 bushed
ton I09. Provided within the chuck proper is a 45 to accommodate a tubular shaft H3. which is
cushioned tube stop IGI held in its downward
supported on hub IIZ by a wide faced pinion IIl
position by a spring I132. The stop HiI being
?xed to the shaft. Shaft H3 extends upward
resiliently held enables the jaws 93 to close about
through bushed ends of a cylinder H 5 and with
the tube 82 without sliding movement between
in the ‘cylinder is provided with an operating
the tube and the jaws, the spring being slightly
piston H6 for raising and lowering shaft H3 of
more compressed instead.v The jaws 93 are opened
a pulling unit mechanism support I23 ?xed to
while in the “unloading and loading” zone when
the upper end of shaft H3. A pair of mercury
a fresh tube is to beinserted, by an attendant
switches (Fig. '7) H8 and I I9 are supported on
depressing button I?il. A tube 82 attached to a
a pivoted lever IZil which swings with the raising
bowl 32 is however released from the chuck jaws 55 and'lowering of shaft IIS to open and close.
93 by the depression of button we as it rides
switchesv H8 and H9. The purposes of ‘these
under a car-n94 (Fig. 19) While passing through
switches will be brought out later.
the “releasing” zone, at which time the tube
A pneumatic unit I24 is attached to the side of
chuck is being raised clear of the tube. The
base I4 and has a piston actuated rack H4 in
tubulated bowl can accordingly be removed from
mesh with pinion II? to effectjswinging move:
the bowl chuck upon its entry into the “unload
ments of support I 23 to alternately positionv its
ing and ‘loading”'zone. Of course. if the chuck
free end I23’ over an indexed bowl chuck anda
assembly of Fig. 16 is being used the removal of
cullet discharge station, PortionIZS’ comprises
the completed unit can only be effected between
a bushed hub which accommodates a tubular
65 shaft I28 (Fig. 4) which at its lower end is pro
indexing movements of the machine.
vided with the pulling unit or suction cup I39
Chuck drive
and at its upper end with a grooved collar I3!
The motor I3 (Figs. 1 and 2‘) in addition to
which holds keys I39 in suitable slots in shaft
turning turret 23 about its axial center in step
I28 and in the hub of a surrounding sprocket
by-stepfashion, as already described, also drives 70 wheel I35. A chain I31 (Fig; 6) passes around
a power take off unit 68 (Fig. 1) from which chuck
wheel I35 and a sprocket wheel I38 secured to the
drive belts B9 and ‘H! are continuously driven at
top end of a shaft (not shown) passing through
a uniform speed. The belt 69 rides over tube
a part I232 (Fig. 7) of support I23 and provided
chuck 'drive pulleys 83 as the chucks pass through
at its lower end with a friction drive disc I5
a plurality of positions including positions‘A-E 75 which engages and is driven by discs I51 ‘when
support I23 has the pulling unit I30 lowered over
a bowl chuck assembly so that the unit I30 starts
to rotate in unison with the bowl contained in the
chuck before a pulling operation is initiated.
Collar I3I is partly surrounded by a yoke I48’
(Fig. 3) on one end of a lever I46, pivoted inter-_
mediate its ends on support I23 while, at its
opposite end, is coupled to an operating rod I6I.
Rod I6I is surrounded by a spring I62 under
of the machinev are under control of the timer
unit I5 (Fig. l) diagrammatically shown in Fig.
14, which comprises equipment under control of
cams 0 to 5 driven by motor I6. Before describ
ing the control and operation, the characteristics
of the valves employed will be brie?y described.
Pilot valves I56 and I51 are of a conventional
type, each arranged to open and exhaust air from
an end of valve I10 when actuated by cam I13.
whose in?uence the rod actuates lever I49 to 10 Pilot valves 98’, 602, I83, £85, I38, and I38, and
the pilot valve associated with control valve 48,
raise the pulling unit I30 when a pulling opera
are also similar to valves I56 and I51 but are
tion is to be performed. An associated pneu
magnetically opened. Each of the control valves
matic power unit I63 has a pusher member I64
90, I10 and I84 is of the balanced piston type,
which at times, as will be brought out later, forces
as shown in Figs. 3 and 4 of Goodrich
the rod I6I upward against the tension of spring
Patent 2,267,236 issued December 23, 1941.‘ In
I62 to lower the pulling unit I30 into pulling rela
this type of valve’ air is constantly supplied to
'*tion, as illustrated in Fig. 8, with the bulge 32’
the respective ends of the cylinders through re
of a bowl indexed at the perforating position (Fig.
stricted passages so that as long as the bleeder
8). At the proper time the operating member
I64 is lowered to permit the pulling unit I38 to 20 valves remain closed the control valve pistons re
main in the positions to which they have last
rise under the in?uence of spring I62 and carry
When the balance is temporarily de
with it bulge 32' which, as already explained, has
stroyed by opening the bleeder valve associated
been heated to a plastic condition by burners
with the opposite end of the cylinder, the piston
I09 and is being further subjected to heat from
shifts to such opposite end of the cylinder. In
burner-electrode units H0 (Fig. 13) to eliect
the special use made of valve I18 the cylinder
severance of bulge ‘32’ from the bowl proper. To
and exhaust ports of one end of the valve are
prevent the softened glass of a bulge 32' from
the vacuum line is connected to the re
sagging out of range of the pulling unit I30 a
maining exhaust port and the tube I68 is con
stream of air is directed against the underside
of the bulge concurrently with the connection of 30 nected with the remaining cylinder port. Each
of the control valves 48, I86, and I00 is similar
the vacuum line with the cup. The air is sup
the valve disclosed by the Goodrich patent
plied from a line I14 (Fig. 5) through a line valve
differing only in that they are of the unbalanced
I15, a nozzle I16 (Figs. 5 and 8) and the bore of
type, so that control is entirely by one bleeder
tubular shaft 38 (Fig. 8). The member I64 of
In the unbalanced form of valve the ef
power unit I63 in its up position holds a valve
fective diameter of one end of the cylinder is
actuating member I15’ in position to maintain
reduced and plugged so that the piston always
valve I15 open, but allows the: valve to close when
remains shifted to the small end of the cylinder
member I64 is lowered to permit the pulling unit
opposite that to which the bleeder valve is con
I30 to rise.
nected, except at such times that the associated
A cullet knockout plunger I 40 extends down 40 bleeder valve is open. Cam I controls a circuit
into the bore of shaft I28 and at its lower end
which includes a clutch release magnet I80,
carries an externally grooved plug I48’ extending
which is momentarily energized to move a stop
nearly to the bottom of the interior of unit I33.
I8! from a single tooth ratchet disc I82 of a
Plunger I46 is held in its uppermost position
single revolution clutch, enabling motor I3
against a knockout lever I45 by a spring I4I held
through its reduction drive to rotate cam 26 one
partly compressed between a knockout button
revolution to advance the chuck, units one posi
I42 and a bushing I43. The lever I45 is pivoted
intermediate its ends ‘and at the end remote from
Concurrently with an indexing operation, earn
button I42 is attached to an operating rod I43
2 completes an energizing circuit for a magnetic
of a pneumatic unit I41.
pilot valve I83 for a control valveiiill to cause
communication with the pulling unit I38, pneu
such valve to supply air to cylinder II5 to raise
matic unit I41 and with the bore of shaft ‘I I3 at
the support I23 While cam 4 closes one break
its upper end. A ?exible tube I69 is attached
in the circuit for a magnetic pilot valve I85 whose
' to the lower end of shaft H3 and is arranged in
circuit is completed by mercury switch II8 as
communication with a four-way valve I18 (Fig.
soon as the pulling mechanism support I23 has
15). Valve I10 under the in?uence of a bleeder
reached its raised position. The energization of
valve I56 (Figs. 3 and 15) establishes communi
valve I85 causes an associated control valve I86
cation‘between a vacuum line and tube 163 to en
to cut off airnormally supplied by it to the right
able the pulling unit I36 to seize softened glass
hand end of unit I24 and to supply air to the
32' of a bowl while the unit is being raised by
left hand end thereof so that the rack I Ill moves
spring I62, and under the in?uence of a bleeder
to swing the support I23 to carry» the pulling
valve I51 establishes communication between an
unit I38 from the pulling position to a cullet
air supply line and tube I69 to pneumatically
discharge position. A short time later the cir
eject glass from element I30 and to actuate unit
for valve 185. is again opened by cam 4
I41 to simultaneously drive plunger plug I46’ 65 cuit
whereupon I86 is permitted to again supply air
out through the end of the element I38 to me
to the right hand end of unit I24 to return it
chanically dislodge cullet therefrom. Operation
of valves I56 and I51 is by means of- a cam I13
attached to the lower end of shaft II3 and ef
to the pulling position. During the. swinging
movement toward- the cullet discharge position,
bleeder valve I56 is engaged by cam-I13 (Fig. 3),.
fective during swinging movements of support 70 but the valve I10 is already in the position in
I23 in its raised position, as will be brought out
which ‘it was placed by a previous actuation of
valve I56, and accordingly the'latter ‘operation
is without function. As the swingingmovement
Control and. operation
The indexing and other sequential operations 76 is completed, however, cam, I13 actuates bleeder
_ 9
valve I5? causing valve III] to shift and substitute
the air supply line for the vacuum line connection
with tube I69. ' Air is accordingly supplied to the
tion 32’. While the pulling unit I30 is being
raised to pull bulge 32’ from the bowl body proper
burner-electrodes IIO assisted by the passageof
pne'umaticknockout unit I41 to drive plug Idil’
high frequency current between them complete
out throughthe end of the gathering element
the separation of bulge 32' from the glass body
I30 and at'the same time to supply air to the
proper. When the parts are indexed to position
‘bore of shaft I28 and out through unit ISQ to
C burners If? and others (not shown) act on the
positively eject the cullet therefrom. As the unit
parts preparatory to the sealing of the parts to
I39 approaches the pulling position cam I'I3
another. At position D the parts have been
actuates bleeder valve I56 causing valve I'I'Il to 10
brought into sealing relation and sealing is ef
shift back and again substitute the vacuum supply
fected by means of heat supplied by ?ames from
line for the air supply line connections With
B29 assisted by the passage of
tube I69. As the pulling unit support I23 re
a high frequency current between them in mul
turns the unit I30 to the pulling position cam 3
completes a circuit for a magnetic bleeder valve
IQI! causing valve I8ii to shift and supply air to
the unit I I5 to lower support I23, thereby bring
tiple with that at the same time applied to
CI burner-electrode units I I6.
Pulling of the seal
takes place as the sealed unit at position D
is leaving such position by providing a slight rise
ing clutch discs I50 and I5I into engagement to
in track 38 at this position (Fig. 19). At position
initiate the rotation of the pulling unit I39 be
the seal of the completed unit is subjected to
fore it is brought into contact with the rotating 20
annealing ?ames from burners I53. As av com
bowl 32. The foregoing operation is almost im
pleted unit passes through the “releasing” zone
mediately'followed by cam 5 closing the circuit
cam track 9i engages button I09 and forces shaft
for a magnetic pilot valve I88 which upon be~
91 down and thus frees the tube of the unit from
coming energized causes an associated control
valve I 89, normally supplying air to the upper end 25 its chuck, allowing the chuck to be raised clear
of the tube by cam track 88 as it enters the “load
of unit I53, to shift and supply air to the lower
ing and unloading” zone. As the latter zone is
end of this unit. Unit I63 accordingly forces the
entered the bowl chuck is opened by the actuation
pulling unit I38 into contact with the bulge 32’,
of lever Ali! under control of cam track t3. thereby
as illustrated in Fig. 8, until cam 5 again opens the
enabling an attendant to remove a tubulated bowl
circuit of magnetic valve I 38 whereupon control 30 from
its chuck.
valve I89 is again permitted to supply air to the
When chucks of the type shown in Fig. 11
upper end of the pulling cylinder M3 to lower
are employed the operations of the machine are
pusher I613. Pusher I64 being lowered enables
as already described except that just preceding
line valve I15 (Fig. 5) to close and out off the air
supply to the interior of the bowl and enables 35 an indexing movement cam 0 causes control
valve 48 to momentarily shift and supply air to
spring I62 to function to again raise the pulling
the lower end of pneumatic unit All (Fig. 11)
cup I36, and with it the cap or bulge 32', it being
instead of to the upper end thereof. As a result
remembered that the vacuum line is at this time
the implement 44 is momentarily raised to shape
in communication with unit I38. As bulge 32'
is raised the glass in the circumferential region of 40 the passage at the junction of the bowl and tube.
When chucks of the type shown in Fig. 16 are
the bulge is attenuated so that ?ames directed
used the operations are as above described with
to this glass and a high frequency are between
the exception that immediately after an index
burner-electrodes III] readily completes the sev
ing operation cam I momentarily energizes pilot
erance of bulge 32’ from the main body of glass.
Application of high frequency current to the. ’ valve 95’ so that valve 99 will supply air to unit
81 to lower track 84 and thus enable removal of
burner-electrodes IIO to assist in separating the
a completed unit at the “unloading and loading”
cap or bulge 32’ from the bowl 232 proper is
position. Preceding the next indexing movement
initiated by the closure of a circuit through mer
earn 5 energizes pilot valve 992 to restore valve 90
cury switch H9 which closes a break between
conductors I ‘I8 and I78’ to establish an electric po U o so that it again supplies air to unit 8'! to raise
track 84 to its original position.
tential between burner-electrodes III] as support
I23 is lowered preparatory to gathering, it being
understood that leads I'I'I are connected with one
terminal of the high frequency source and that
conductor I18’ is connected with the other
terminal of such source.
Referring now particularly to Figs. 13, 14, 15
and 19 a cycle of operation of the machine
equipped with the chucks of Fig. 8 will be briefly
followed through. A bowl 32 and a tube 82 are
placed in a pair of chucks as they move through
the “unloading and loading” zone.
82 and 32 are being advanced to
designated A belts Bi! and T0 are
pulleys 83 and 33 to effect rotation
As the parts
the position
engaged by
of the parts
and thus even heating of the parts is assured.
Since belts 69 and ‘HI travel at the same speed
parts 32 and 82 are rotated in unison as required
particularly during the subsequent tubulating op
While in the foregoing there has been shown
and described the preferred embodiment of the
invention, it is to be understood that minor
changes in the details of construction, com
bination and arrangement of parts may be re~
sorted to without departing from the spirit and
scope of the invention as claimed.
What I claim is:
1. In a glass working apparatus, a. chuck
adapted to hold a glass article, means adjacent
said chuck for heating to plasticity a restricted
Wall area of a glass article held by said chuck, a
suction. gathering unit adjacent said chuck,
means operatively connected to said unit for mov
ing it from a discharge position into juxtaposed
relation to the plasticized wall area of the article
and back to its discharge position, means ad
jacent said chuck for applying pressure to the
eration. While at position A burners I39 direct 70 plastieized wall area of the article in a direction
towards said unit while said unit is moving toward
flames toward the bulge portion 32'. At position
the article, means operatively connected to said
B, as will be evident from Fig. 19, the tubev
unit for establishing communication between it
chuck has been raised well above the bowl chuck,
and a vacuum line and for maintaining the same
providing ample clearance for allowing the pull
movement of said unit from such juxta
ing unit to swing into position over the bulge por 75 posed relation
toward its discharge position to
seize and draw plasticized glass away from the
article proper, thermal means adjacent said
chuck for severing the major portionof the seized
glass from the article proper, and means opera
tively associated with said unit for ejecting the
seized glass therefrom upon its arrival at the dis
charge position.
2. In a glass working apparatus, a, chuck
tively connected to said carrier for indexing it to
successively bring a, tube and container in said
holders to different fabricating positions, means
operatively associated with a container holder
at the ?rst of such positions for heating a re
stricted wall portion of the container, means
operatively associated with .a container holder
at a subsequent indexed position for also apply
ing heat to said wall portion, means including a
adapted to hold a glass article, means adjacent
said chuck for heating to plasticity a restricted
wall area of a glass article held by said chuck,
a suction gathering unit adjacent said chuck,
means operatively connected to said unit for
moving it from a discharge position into juxta
posed relation to the plasticized wall area of the
article and back to its discharge position, means
operatively connected to said unit for establishing
tion for removing the heated wall portion of the
container to produce an aperture therethrough,
means operatively associated with one of the
holders for moving it to bring the wall portion of
a container comprising the boundary of the aper
communication between it and a vacuum line and
for maintaining the same during movement of
heat applying means operatively associated with
suction gathering device adjacent the latter posi
ture and an. end wall of a tube aligned there
with into contactual relation as they are being
indexed to a subsequent one of said positions,
said unit from such juxtaposed relation toward 20 the holders when at-the latter of said positions for
its discharge position to seize and draw plasticized
glass away from the article proper, thermal means
adjacent said chuck for severing the major por
tion of the seized glass from the article proper,
and means operatively associated with said unit '
for ejecting the seized glass therefrom upon its
arrival at the discharge position.
3. In combination, .a movable carrier, a plu
rality of vertically aligned tube and container
holders supported by said carrier, means opera 30
completing a seal between a tube and container,
means operatively associated with each container
holder and mounted for movement into the aper
ture of said container for giving a predetermined
shape characteristic to the inner surfaces of the
container and tube in their region of juncture,
and an actuator for said last means at the posi
tion at which a tube and container are brought
into contactual relation.
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