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Патент USA US2130193

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Sept. 13, 1938.
WI P, OSGQQD
2,130,193 „
SHOE MACHINE
Filed MayI 24, 1957
4 Sheds-Sheet l
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Sept. 13, 1938.
w. P. osGooD
2,l30,193
SHOE MACHINE
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gunman
6.9
Filed May 24, 1957
4 Sheets-Sheet 2
Sept. 13, 1938.
W. F’. OSGCO D
SHOE MACHINE
Filed May 24, 1957
4 Sheets-Sheet 4
(YZ
2,130,193
Patented Sept. 13, 1938
UNITED ' STATES
PATENT 'OFFICE
2,130,193
SHOE MACHINE
Walter P. Osgood, Malden, Mass.
Application May 24, 1937, Serial No. 144,428
14 Claims.
The present invention relates to machines
which are used in the manufacture of shoes to
apply pressure progressively to a seam ridge
formed in joining a plurality of sheets or upper
5 blanks, such as a pair of quarters, by a seam.
This operation is known in the shoe industry as
the seam pressing operation, the purpose of
which is to press the upstanding seam ridge be
yond its elastic limit to set it in a permanently
10 deformed condition in a single plane thus to ren
der the seam ridge innocuous to the strains to
which it is subjected during the various shoe
making operations and to provide for a straight,
good-looking seam crease in the finished shoe.
15 In some cases the application of progressive
pressure is accompanied by the application of
tape to the seam ridge and to the inside faces
of the quarters at opposite sides thereof. It
must be understood, however, that with respect
to tape-severing certain features of the present
invention are useful when embodied in machines
for applying tape to a single sheet or upper blank
as well as in machines for applying tape to and
adjacent a seam ridge.
The work is presented to a seam pressing ma
chine for the seam-pressing operation in a turned
inside-out condition thus to develop an upstand
ing seam ridge. For a long time it has been
highly desirable in the shoe industry that the
machine, during the seam-pressing operation,
turn the quarters right side out.
It has been
proposed heretofore to obtain this desirable re
side elevation;
Fig. 2 is a View, partly in section, of the Work- :Y
supporting structure;
Fig. 3 is a detail View in front sectional ele
vation of the ñrst work-supporting roll;
Fig. 4 is a, detail view in front sectional ele
vation of the second work-supporting roll;
Fig. 5 is a View in front sectional elevation,
parts of the frame being broken away for con
venience;
Fig. 6 is a detail view in front sectional ele
vation of the presser foot supporting structure;î 15
Fig. 7 is an enlarged detail View in left side
elevation;
Fig. 8 is a View in sectional plan on the line
8_8, Fig. 7;
l
Fig. 9 is a detail View in right side elevation 20
of the tape-severing knife cam and the button
for engaging it at the will of the operative;
Fig. 10 is a detail View in plan of a modified
form of work support;
Fig. 11 is a detail view in left side elevation - 25
of the work support illustrated in Fig. 10;
Fig. 12 is a detail view in right side elevation,
partly in section;
Fig. 13 is a View in sectional plan on the line
lli-I3, Fig. 1;
lâ-M, Fig. 2, and
Fig. l5 is a detail View in plan of the work sup
a peripheral groove as disclosed by me in my
port illustrated in Figs. 1, 2, 3 and 4.
The work is supported for the combined tape
Experience has demonstrated that with a work
supporting roll having a peripheral groove, the
work is reversed only if the operative uses her
hand as a guide to control the shape of the
work as it leaves the seam pressing machine.
The principal object of the present invention
is to produce a seam-pressing machine which will
perform the seam-pressing operation in a satis
factory manner and deliver positively the finished
~ work in a right side-out condition.
Further objects of the present invention are
applying and seam-pressing operation by two
rolls l5 and i1, (Fig. 1), arranged in line in the
direction of feed indicated by the arrow therein,
the roll I6 ñrst engaging the leading edge of the
work and the roll I 1 last engaging the trailingl 40
edge of the work.
The roll I8, (Fig. 3), comprises a metal shell
I8, the work-engaging periphery of which is pro
vided with a central fiat land i9 flanked by
beveled lands 20 and 2l. The shell I8 is pro
vided with flanges 22 which embrace the side
tosimplify and improve the Work support and
the mechanism for simultaneously operating the
tape guide and actuating the tape-severing knif
faces of a rubber ring 23 upon which the shell
I8 is mounted. The ring 23 is mounted upon a
to sever the tape.
inside faces of the arms of a yoke 25 secured
to the upper end of a spindle~26, (Fig. 2). The
sleeve 24 is mounted to rotate freely upon a stud
Y
To the accomplishment of these objects the
various features of the present invention reside
in certain devices, combinations and arrange
ments of parts hereinafter described and then
pointed out in detail in the appended claims,
30
Fig. 14 is a View in sectional plan on the line
sult by providing the work-supporting roll with
Patent No. 19,319, reissued September 18, 1934.
55
possessing advantages readily apparent to those
skilled in the art.
Figure 1 is a View, partly in section, in left
sleeve 24, the opposite ends of which engage the
2l secured to the arms of the yoke 25 and bridg
ing the space between them.
The _roll I1 comprises a rubber ring 28, (Fig..
2
2,130,193
4), mounted in a channel 29 formed vin the pe
riphery of a metal ring 30 rotatably mounted
upon a stud 3| secured to the arms of the yoke 25.
The spindle 26, (Fig. 2), is mounted to slide
Cil vertically but held from rotation in a post 32. To
this end the spindle 26 is provided with a narrow
key 35 which rides in an elongated slot 36 Yformed
in the post 32. The bottom of the spindle 26 is
threaded to receive the threaded upper end of a
10 rod 31, the lower end of. which supports a closed
link 38 to which a treadle-connected rod 39 is
will feed the upper so withdrawn out of the ma
chine.
Th'e post 32, near its base, is provided with an
arm 41, (Fig. 13), having lateral bosses 48 there
on, the end face of each of which is centrally
recessed to receive the conical ends of screws 49
carried by a dome 50, on the machine frame, both
the dome and the frame having openings 5|
through which the post 32 works.
The post 32 is held in the full line position of
hooked.
Near its lower end the rod 31 is threaded to
Fig. 1 by a latch 52 having a beveled face 53 which
receive a nut 40 provided with a circular series
engages a similar face 54 formed on the bottom
of an ear 55 on the post 32. The post 32 is pre
of openings 4|, (Figs. 2 and 14), one of which is
adapted to receive loosely a pin 42 carried by the
lower end of a sleeve 43. The upper end of the
sleeve 43 through which the rod 31 passes loosely
is threaded into the lower end of the post 32.
As shown in Fig. 2 the central portion of the bot
tom of the sleeve 43 is provided with a cylindrical
vented from excessive movement to the left, (Fig.
1) , by a pair of stop screws 56 carried by the dome
50 and arranged, respectively, to engage projec
of the nut 40 is seated, there being a washer 45
interposed between the nut 40 and the sleeve 43.
tions 51 on the post 32.
The latch 52 is slidably mounted in a guideway
58 formed in an extension 53 of the dome 50.
The latch 52 is connected to one end of a rod 60,
the other end of which is provided with a handle
6| by means of which the latch 52 may be with~
The nut 40 and sleeve 43 are held in contact
and the work-supporting rolls I6 and |1 are pro
fall into the construction line position of Fig, 1
seat 44 in which’the central portion of the top
jected yieldingly from the upper portion of the
post 32 by a spring 46 housed in the lower end of
the post, coiled about the rod 31 and interposed
30 between the bottom of the spindle 26 and the top
of the sleeve 43.
,
With this construction the work support may
be lowered against the tension of the spring 46
by depression of the treadle-connected rod 39.
35 During this movement the nut 40 is separated
from the sleeve 43 but the amount of separation
is not sufficient to cause the opening 4|, which
receives the pin 42 to clear it. When the treadle
connected rod 39 is released> the spring 46 re
stores the work~supporting rolls and the nut 48
to their normal operating positions.
The lower portion of the rod 31 is threaded into
the nut 40. ‘These threads have the same pitch
as the threads by means of which the sleeve 43 is
45 threaded into the post 32. With this construction
rotation of the nut 40 and sleeve 43 as a unit re
sults in the variation of the tension of the spring
46 without, however, varying the operating posi
tion of the work-supporting rolls.
To vary the operating height of the work-sup
porting rolls without variation in the tension of
the spring 46 the pin 42 _is Withdrawn from the
nut 40, which is then rotated on the sleeve 43 in
the desired direction and to the desired extent,
the pin 42 being then replaced in the sleeve 43
and inserted in one of the other openings 4| in the
nut 40.
Broadly considered the post 32 may be rigidly
supported from the frame of the machine when
60 the work-supporting rolls are embodied in a top
taping machine or in a back-seam machine in
which the quarters operated upon are not ñtted in
a closed upper. In order, however, that after each
successive operation on the back seams of uppers
75
Work-supporting rolls are in the full line position
of Fig. lin which case the hammer to be described
each closed in a ring-like form, the operative may
allow the upper, respectively, to drop down over
the post 32 and accumulate in a stack thereon,
therpost 32 is pivoted so that it may be swung
from the full line position of Fig. 1 to the con
struction line position and thusfacilitate the re
moval of the stack.
The stack of closed uppers to be operated upon
may be placed over the lpostr32 while in the con
struction line position of Fig. l and the uppers
withdrawn therefrom, one at a time, while the
drawn from the ear 55 to permit the post 32 to ‘
under the inñuence of gravity. A second rod 62
connected to the handle 6| is received within an
opening 63 formed in the extension 59- to prevent
30
rotation of the latch'.
ì
When the handle 6| is released the latch 52 is
projected into the position of Fig. 1 by a spring
64 housed in the extension 59 coiled about the
rod 60 and interposed between the latch 52 and
the closed end of the guideway 58. When the
operative pushes the post 32 from the construc
tion line position of Fig. 1 to the full line position
thereof the latch 52 is wedged into the guideway
58 against the tension of the spring 64 by a cam
surface 65 formed on the ear 55.
40
Associated with the work-supporting rolls is a
seam-crease guide 66, (Fig. 1). The seam ridge is
guided by a guide 61 having a construction and
mode of operation substantially like the leather
seam-ridge guide disclosed in my Patent No. 45
1,850,120, March 22, 1932. The guide 61 is con
nected detachably to a bracket 68, (Figs. l, 5 and
7). The bracket 68 is secured to a block 69 which
is supported from a bracket 10 secured to the
machine frame.
50
After the work has been placed in position on
the work-supporting rolls with the seam-crease
and the seam-ridge engaged by their respective
guides, the tape is applied to the work by a seam
pressing hammer 1|, (Fig. ’7), carried by a lever
or head 12. The head 12 is formed with a slot
13, (Figs. l and '7) , in which is received slidably a
block 14 that is pivoted at 15 to the machine
frame. The upper end of the lever 12 is connected
toan eccentric (not shown) on the drive shaft 16,
(Fig. 1) . As disclosed more fully in my Patent No.
1,646,212, this construction reciprocates the ham
mer 1|, to press the seam-ridge progressively and
apply tape thereto, and oscillates the hammer 1|
in contact with the work, to impart thereto a
feeding movement. During this feeding move
ment the hammer 1| draws tape through a tape
guide 11, (Figs. 1 and 7), from a suitable source of
supply extending in the machine from a coil, (not
shown), to the tape guide. Intermediate the coil
vand the tape guide the machine is provided with a
tape pull-ofi mechanism having substantially the
same construction and mode of operation as the
corresponding pull-off disclosed in my Patent No.
1,899,051, February 28, 1933.
75
3
2,130,193
parts disclosed in my Patent No. 2,026,911, Jan
for the time of operation of the tape-severing
knife relative to the time of operation of the tape
guide from its position below the path of operation
of the tape-severing knife to its position above
that path, the desideratum being to cause the
uary '1, 1936. The tape guide 11 is supported from
knife in its tape-severing stroke to clear the bot
The tape guide 1-1 and its associated tape-strip
per plate 18 have a construction and mode of lop
eration with respect to tape-guiding and tape
stripping substantially like the corresponding
one end of a rock shaft 19 journalled in the block
69. The other end of the rock shaft 19 is provided
with an arm 88, the free end of which is connected
an
tom of the tape guide during its upward swinging
oted to the upper end of a treadle-connected rod
movement and to provide the tape with a dangling
cut end so that the tape presenter 18 may pick it
up and pull the tape into the line of feed when the
tape guide is restored to its normal operating posi
tion.
The operative inserts the workin the machine
being careful to engage the seam crease with the
85, a spring, (not shown), being connected there
seam crease guide 66 and the seam ridge with the 15
to in the usual manner to return the parts to nor
seam ridge guide 61, the work being turned inside
out to develop the upstanding seam ridge. The
10 by a link 8| to the lower end of an arm 82 de
pending from a rock shaft 83 journalled in the
machine frame. The rock shaft 83 is provided
with a second arm 84, the free end of which is piv
mal position after the depressed treadle has been
released by the operative.
The normal position of the tape guide is illus
trated in Fig. '1. In this position the tape guide
cooperates with the hammer 1| below the path of
operation of the tape-severing lmife 86. The
tape-severing knife 86 comprises a plate 81, (Fig.
8), provided with a salient cutting edge 88. The
plate 81 is secured to a holder 89, (Fig. '1) , project
ing laterally from one end of an arm 98, the other
end of which is secured to one end of a rock shaft
9| journalled in the block 69. The other end of
the rock shaft 9| is provided with a cam plate 92
30 which may be engaged by a button 93 rotatably
mounted on one end of a horizontal rod 94 slidablyr
mounted in a sleeve 948 threaded into the re
ciprocating and oscillating head 12. The button
93 is maintained normally at one side of the ver
tical plane of the cam plate 92 by a spring 95,
coiled about the rod 94 and interposed between the
button 93 and the adjacent end of the sleeve 948.
ri‘he spring 95 moves the button 93 and the rod 94
to the right, viewing Fig. 5,l until stopped by the
nut 96 on the opposite end of the rod. The button
93 is pressed to the left, viewing Fig. 5, against
the tension of the spring 95 by a cam block 91 ad
justably secured to- the link 8 I. The tape-severing
knife is maintained normally in the position of
operative then feeds the work inthe direction of
the arrow, (Figs. 1 and '1), to bring the leading
edge of the work into the zone of activity of the
hammer 1| thereby picking up the leading edge
of the freshly cut tape and interposing it between
the hammer 1| and the top of the seam ridge.
The toe |82 of the hammer 1| cooperates with
the downgoing side of the roll I6 to apply the tape
to the seam ridge and to perform thereupon that
operation known in the shoe industry as the seam
pressing operation. The heel |83 of the hammer
1| cooperates with the upgoing side of the roll I1
to apply the tape to the face of the quarters at 30
opposite sides of the taped and pressed seam ridge.
During this operation the surface 28 on the roll |1
yields to permit the taped and pressed seam ridge
to pass between the heel | 83 and the roll |1 with
out injury.
,
'
4
ing edge of the work upwardly into engagement
with the upgoing side of the roll |1. During the
time the work is bridged across the rolls I6 and |1,
Fig. ’1 by a coiled spring 98, one end of which is
connected to the block 69 and the other end of
which is connected to the arm 98. Movement of
the tape-severing knife in the other direction is
limited by a pin 99 projecting from the block 89.
Thus, through the connections described the
tape-severing knife is maintained normally in an
the work is acted upon by the shank |85 of the
hammer 1| which imparts to the seam ridge face
of the work a concave curvature both along the
length of the seam ridge and across the quarters
inoperative position and the tape guide 11 is main
tained normally in a position below the path of
operation of the tape-severing knife, in which po
sition the tape guide cooperates with the hammer
tape to the faces of the quarters at opposite sides
of the taped and pressed seam ridge, imparts a
shape to the quarters which they assume when
1|.
'
When the treadle-connected rod 85 is depressed
by the operative the tape guide 11 is swung up
wardly to a position above the path of operation
60 of the tape-severing knife, in which position the
tape guide cooperates with the knife, and the but
ton 93 is forced by the cam block 91 into the ver
tical plane of the cam plate 92 so that the tape
severing knife is operated to sever the tape by the
same power driven mechanism which reciprocates
and oscillates the seam-pressing and tape-apply
ing hammer 1|. The tape-severing knife is oper
ated to- sever the tape on one of the downward
movements of the head 12. The tape-severing
70 knife is retracted after its tape-severing move
ment by the coiled spring 98, a forwardly pro
jecting ledge |88 on the block 89 limiting the
movement of the arm 98 under the influence of
the spring 98. The cam block 91 is mounted ad
75 justably upon the link 8| to facilitate providing
35
The toe |82 of the hammer 1| feeds the leading
edge of the work progressively down the down
going side of the roll I6 until the leading edge en
gages a bite guard |84, (Fig. '1), which prevents
the leading edge of the work from passing down
between the rolls |15 and |1 and deflects the lead
laterally thereof. Thus, the hammer 1| in coop
eration with the rolls | 6 and |1 applies tape to the u
seam ridge, presses the taped seam ridge, applies
assembled upon the heel end of a last, and irons
the seam crease side of the quarters to impart a
finished appearance thereto free from the unde
sirable “crow’s-feet.”
In order to-aid the hammer 1| in concaving
the seam ridge face of the work and to insure GO
the setting of the quarters in the position they
assume when assembled upon the heel end of a
last, the opposite sides of the arms of the yoke
25 are provided, respectively, with wings |86 and
|81 which engage the finished faces. of the quar
ters and support them while the hammer 1| op
erates upon the unsupported seam ridge portion
of the work.
Each wing is provided with a shank |88, (Fig.
1), secured by screws: to an arm of the yoke 25,
a fiaring quarter-engaging edge |89, (Fig. 15),
and an undercut portion | | 8, which permits that
portion of the flaring edge |89 first to be en
gaged by the quarter to ‘be located over the top 75
4
2,130,193
of the arm of the yoke 25 close to the side of the
roll I6.
5
'
face of the work about an axis extending sub
stantially normal to the line of feed, and means
Iianking the rolls for supporting portions of the
As indicated in Fig. 5 the quarter-engaging
edges of the wings |06 and |01 liare outwardly
work unsupported thereby.
for most of their lengths, the edges flaring in
wardly adjacent ltheir rear ends. For some
3. A seam-pressing machine having, in com
bination, means for supporting the work com
classes of work it may be desirable to provide
prising a pair of spaced apart rolls, means con
the reversing wings with quarter-engaging edges
structed and arranged to bridge the space be
||| and H2 which iiare outwardly for a portion
of their lengths, ñare inwardly for another por
tion and flare outwardly again adjacent their
tween the rolls and bend the flesh or unfinished
face of the work about an axis extending sub-k
stantially normal to the line of feed, means
rear ends.
iianking the rolls for supporting portions of the
During the action of the hammer 1| upon that
portion of the work which extends unsupported
work unsupported thereby, and a seam ridge
presser foot.
4. A seam-pressing machine having, in com
bination, means for supporting the work com
prising a pair of spaced apart rolls, and a com
bined tape-applying and seam-pressing means
between the rolls I6 and |1 and between the re
versing wings |06 and |01, the taped and
pressed seam ridge is engaged by a presserV foot
CA
||3, (Fig. '1), in order to resist the tendency of
the work to spring upwardly during the idle
stroke of the hammer. The presser foot ||3 is
first with one of the rolls only to press the seam 20
formed upon the lower end of a lever ||4 which
ridge, apply tape thereto and feed the work,
works in a slot ||5, (Fig. 6), formed through -the
central portion of the hammer, and which is piv
then with both rolls to bend the work about an
axis extending substantially normal to the line
of feed, and finally with the other one of the rolls
oted upon a pin ||6 secured to a presser foot
support ||'|. 'I‘he upper end of the support ||1
is provided with a post ||8 which is secured to
a carrier ||9 having a rod |20, (Fig. 6), which
passes through the slot 13 in the hammer head
12 in position to be secured to the frame of the
30 machine as by a nut and washer fastening |2|.
The pin IIB, upon which the presser foot lever
||4 is pivoted, is provided with an arm |22 hav
ing a hooked end |23 which hooks over the
shank of a screw |24, the head of which clamps
the arm |22 tothe support ||1.
The presser foot ||3 is urged into engagement
with the taped and pressed seam ridge by a coiled
spring |25, one end of which is hooked through
an eye |26 formed in the lever ||4 and the
40 other end of which is hooked over a pin |21 pro
jecting forward from the carrier ||9.
Nothing herein explained is to be interpreted>
as limiting the various features of the present in
vention in the scope of its application to use in
connection with the particular machine or the
particular mode of operation or any combination
thereof selected for purposes of illustration and
explanation. While the particulars of construc
tion herein set forth are well suited to one me
chanical form of the invention and to the uses
to which it is put, it is not limited as to these
uses, nor to these details of construction, nor to
the conjoint use of all its features, nor is it to be
understood that these particulars are essential
since they may be modified within the skill of the
artisan without departing from the true scope
of the actual invention, characterizing features
of which are set forth in the following claims by
the intentional use of generic terms and expres
60 sions inclusive of various modiiications.
What is claimed as new is:
l. A seam-pressing machine having, in com
bination, means for supporting the work com~
prising a pair of spaced apart rolls,'a bite guard
interposed therebetween, means constructed and
'arranged to bridge the space between the rolls
over the bite guard and bend the flesh or unfin
ished face of the -work about an axis extending
substantially normal to the line of feed, Vand a
seam ridge presser foot.
2. A seam-pressing machine having, in com
bination, means for supporting the work corn
prising a pair of spaced apart rolls, means con-V
structed and arranged to bridge the space be~
tween the rolls and bend the iiesh or unfinished
constructed, arranged and operated to cooperate
only to apply tape to the work at opposite sides 25
of the taped and pressed seam ridge and to feed
the Work out of the machine.
5. A machine for applying pressure pro
gressively along a'work piece having, in combina
tion, a work support, means cooperating there 30
with to press a work piece inserted therebetween,
a spring for moving the work support in one di
rection, a treadle-controlled means for moving
the work support in the other direction, means
for varying the tension of the spring without 35
varying the relation of the work support to the
pressing means and means for varying the rela
tionv of the work support tothe pressing means.
6. A machine for applying pressure progres
sively along a work piece having, in combination, 40
a work support, means cooperating therewith to
press a work piece inserted therebetween, a
spindle upon which the work support is mounted,
a pivoted post in which the spindle is movable
vertically, a sleeve threaded into the post, a nut
engaged with the sleeve, a treadle-connected rod
threaded into the nut and connected to the
spindle, a spring housed in the post coiled about
the rod and interposed between the spindle and
the sleeve, and a connection between the sleeve 50
and the nut permitting a relative movement
therebetween.
'1. A machine for applying pressure progres
sively along a work piece having, in combination,
a spindle upon which the work support is mount
ed, a pivotal post in which the spindle is movable
vertically, a sleeve threaded into the post, a nut
engaged with the sleeve, a treadle-connected rod.
threaded into the nut and connected to the
spindle, a spring housed in the post coiled about 60
the rod and interposed between the spindle and
the sleeve, and a connection between the sleeve
and the nut permitting a relative movement
therebetween either of separation or rotation.
8. A machine for applying pressure progres-‘
sively along a Work piece having, in combination,
a work support, means cooperating therewith to
press a work piece inserted therebetween, a
spindle upon which the work support is mounted,
a pivoted post, a key and slot connection between 70
the spindle and the post, a sleeve threaded into
the post, a nut, having a series of openings, en
gaged with the sleeve, a treadle-connected rod
threaded into the nut and connected to the
spindle, a spring housed in the post coiled about 75
2,130,193
the rod and interposed between the spindle and
the sleeve, and a pin carried loosely by the sleeve
adapted to engage loosely the selected one in the
series of nut openings.
9. A machine for applying pressure progres
sively along a work piece having, in combination,
a work support, means cooperating therewith to
press a work piece inserted therebetween, a
treadle~connected spindle upon which the Work
10 support is mounted, and a post, pivoted about
a horizontal axis, within which the spindle is
movable longitudinally.
5
tively disconnected from the button, a tape guide
normally occupying a position below the path
of operation of the tape-severing device, and
means for operatively connecting the button-and
the cam and for locating the tape guide above Ul
the path of operation of the tape-severing de
vice comprising an arm connected to the vtape
guide rock shaft, a treadle-connected arm and
a link connecting the arms having a cam ar
10
ranged to engage the button.
13. A tape-applying machine having, in com~
bination, tape-applying means, power-operated
10. A machine for applying pressure progres~
mechanism for operating the tape-applying
sively along a Work piece having, in combination,
means, including a button, a tape-severing de
vice, a rock shaft upon which the tape-severing
device is mounted, having a cam normally oper
atively disconnected from the button, a tape
guide normally occupying a position below the
15 a work support, means cooperating therewith to
press a work piece inserted therebetween, a
treadle-connected spindle upon which the work
support is mounted, a pivoted post within which
the spindle is movable longitudinally, and means
20 for latching the post from movement under the
inñuence of gravity.
11. A machine for applying pressure progres
sively along a work piece having, in combination,
a work support, means cooperating therewith
25 to press a work piece inserted therebetween, a
treadle-connected spindle upon which the work
support is mounted, a pivoted post within which
the spindle is movable longitudinally, means for
latching the post from movement under the in
30 fluence of gravity, comprising a latch and an
ear on the post, a spring for inserting the latch
beneath the ear, a cam surface on the ear for
operating the latch against the tension of the
spring, and manual means for withdrawing the
latch from beneath the ear.
12. A tape-applying machine having, in com
bination, tape-applying means, power-operated
mechanism for operating the tape-applying
means including a button, a tape-severing de
40 vice, a rock shaft upon which the tape-severing
device is mounted having a cam normally opera
path of operation of the tape-severing device,
and means for operatively connecting the button
and the cam and for locating the tape guide
above the path of operation of the tape-severing
device comprising an arm connected to the tape
guide rock shaft, a treadle-connected arm and
a link connecting the arms, said link having a
cam adjustably mounted thereon and arranged
to engage the button.
14. A machine for applying pressure progres
sively along a Work piece having, in combination,
a work support, means co-operating therewith 30
to press a work piece inserted therebetween, a
spindle upon which the work support is mounted,
a post in which the spindle is movable verti
cally, a sleeve threaded into the post, a nut en
gaged with the sleeve, a treadle-connected rod
threaded into the nut and connected to the
spindle and a spring housed in.l the post, coiled
about the rod and interposed between the spindle
and the sleeve, the threads on the sleeve and the
rod having the same pitch.
40
WALTER P. OSGOOD.
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