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Патент USA US2108447

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Feb. 15, 1938.
v
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s, E, ROSENBERG
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_
2,108,447
PERFORATING MACHINE AND METHOD OF OPERATING THE SEME
Filed Jan. 15. 1936
5 Sheets-Sheet 1
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/ .Feb."15;, 1938-
s. E. ROSENBERG
4, 2,108,447
PERFORATING MACHINE AND METHOD OF OPERATING THE SAME
Filed Jan. ‘15. 1936
' I
s Sheets-Shéet 2
. WMWWZ?
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$2271:
Feb. I5, 1938.
s. E. ROSENBERG.
. 2,108,447
PERFORATING MACHINE AND METHOD OF OPERATING THE SAME
Filed Jan. I5. 1956
5 Sheéts-Sheet 3
gauges
' 2,108,447
UNITED‘ - STATES PATENT “OFFICE
>
2.100.441
"
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F
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PERFORATING MACHINE AND METHOD 0!‘
OPERATING THE SAME
Stig E. Rosenberg, Brockton, Man. _
Application January 15,‘1936,'S¢?3l No. 59,233
19 Claim. (a. 164-44)
This invention relates to a machine for orna-.
menting work, such as parts of shoe uppers, by
cutting
therein by a die provided with
cutting. elements such as tubular or hollow
, knives _or combinations of such ele-'
ments, formed and ‘arranged to ornament the
work, the machine being provided with a back
ing strip of suitable material such as heavy paper
: '
; Iii
ted with the die.
Figure 4 shows in perspective portions of the
supporting means shown by Figure 3.
Figure 5 15a side view of a machine having an
‘endless backing strip and means for applying an '
impression filling material thereto.
Figure 6 is a side view of a perforating ma
chine including mechanism embodying the pres
ent invention, a portion being broken awayto
show in section.
‘
The present invention includes certain im
Figure 7 is a back view of the machine shown 10
provements on the machine disclosed in my ' in Figure 6.
pending application filed August 13, 1935, Serial
Figure 8 is an enlargement oi a portion of
No. 35,955.
'
'
In the operation of machines oi.’ this type, the
be.
strip is scored by the die with each actu
anon oi the mechanism. Hence the backing
strip is advanced after each such actuation to
present wfresh unscored area of the strip to the
die.
results in a succession of scorings in
the strip extending in a longitudinal series.
Figure 7.
v
Figure 9 is an enlargement of a portion oi‘
Figure 6.
_
Figure 10 shows in perspective one of the giddes
"shown by Figures 7 and 8.
Figure 11 is L fragmentary perspective view
showing the aluminum face plate of the platen,
a portion of the backing strip, and a portion oi
in many instances, the scored ?gures are not the die.
_
.
neerip as wide as the paper strip. An object of
Figure 12 is a perspective view oi a pair oi
present invention is to utilize the full width “supporting members of modi?ed form for e die
oi the bee?ng strip in such instances by making
possibie relative lateral displacement between the
strip
oi’
die whereby a. number of such series
may be made side by side on the
htiiliii.
iinother object of the invention is to facilitate
lid operation on any portion of a “formed upper”, '
is,
upper, the ends of which have been
joined together in a seam at the rear, without
oi
to the ?ngers of the operator.
mother obiect oi the present invention is to
poovlde a. booming strip whose ends are joined \
I
so
the strip endless and capable of being
passed es an endless band. repeatedly through
the machine in either direction, and to provide
means whereby die impressions in said endless
strip may be ?lled with a quickly drying solu
tion such as shellac, which is solidi?ed in the
die impressions, and nearly or quite obliterates
the some, so that the strip has a surface capable
of being advantageously used repeatedly.
Other objects will hereinafter appear.
or the accompanying drawings forming a part
of this speci?cation,
or die mount.
.
Figure 13 is a perspective view of a die adapted
for use with the supporting members shown in
Figure 12.
Figure ii is a perspective view of a formed
upper after ornamentation has been punched in
a side thereof.
I
.
Figure 15 is a fragmentary front elevation of
a perforating machine on which are used. sup
porting members of the kind shown in Figure 112.
e 16 is a section on the line ii~it oi’
Figure 15.
Figure 17‘ is a front elevation oi as
rtioh oi
Figure 15, showing. an upper in position to be
operated upon“
I,
I
Figures 18 and 19 are prospective views of the
die shown in Figure 13, illustrating two succes AW
slve steps in the positioning oi’ an upper on the
die.
~
'
‘
The same reference characters indicate the
same parts in all of the ?gures.
.
The frame of the machine includes a ?xed
1 is a front ‘view of the lower portion of
base or bed It, spaced apart sides It, and a top
It connecting the sides. It is a reciprocating
platen movable toward and from the base. A
_ the machine showing an adjustable mount for a
supplemental bed It is shown by Figures 1 ‘and
hat die of any width, the die mount being sup
2, supported by the base or bed i2.
I1 is a die 50
' ported in turn by a supplemental bed.
- Figure 2 is a section on the line_2-i of Figure 1.
supported by the supplemental bed and having
Figure 3 a view similar to Figure 1 showing
the die adiustably supported by a transversely
a stripper plate. I8 is the backing strip, usually
of paper. The strip I! may be made wholly
55 shiitable anvil’.
'_
‘
35:
suitable punches, and cutting elements, such as
of paper, or of layers of paper and cloth, or any 55
2
2,108,447
other suitable sheet material, and is moved pro
gressively. One end of the strip is engaged with
a re-wind shaft i8 (Figure 6) driven by a belt 20,
(Figure ‘7), running on a pulley 2| on the driving
shaft, 22, and on a pulley 23 on the re-wind
shaft i9.
When a strip i8 has been wound on the shaft
i9, it can be removed from that shaft and trans
ferred in the form of a tubular or hollow roll 24
to a supplying shaft or rod 25 so as to be run
through the machine again.
-
A stretch I of the backing strip from the roi
24 extends downward from the guide 28 to and
. under a guide 21, another stretch 2 extends hori
15 zontally from the guide 21 to a guide 28, this
stretch passing between the bed l8 and the platen
l5, and another stretch 3 extends upwardly from
the guide 28 to a guide 28. From the guide 29
the strip passes through the nip of a feeding
20 couple composed of a pair of rolls including a
?uted driven roll 30 ?xed to a shaft 3i, and an
idle roll 32 pressed downwardly by springs
against the roll 30 to grip the backing strip.
As shown in Figures 6 and 'I, and more par
ticularly described in my application Ser. No.
35,955, hereinbefore referred to, I provide means
for imparting intermittent feeding movements
to the driven feed roll 30 so that the backing strip
is given a step-by-step movement through the
30 machine. The driving means for the roll 30 in
cludes a ratchet wheel 3l0 mounted on the feed
shaft 3| whereon is loosely mounted the hub
portion of a pawl member 3“ which engages
the ratchet in the usual manner. The member
3“ is rocked through a connecting rod 3l2 which
is pivotally attached thereto at one end, the other
end of the rod being attached to a rocker arm
3l3 which rocks about a pivot 3“. The arm
3i 3 is rocked by a crank pin 315 revolving about
40 the axis of the shaft 22 and driven by said
shaft. It is evident from Figure 6 that during a
portion of ‘each revolution of the crank-pin 3l5,
feeding movement will be imparted to the feed
roll 30, the roll being motionless during the
45 remaining portion of each revolution. Thus the
feed roll 30, and hence the paper backing strip
I8, is intermittently fed during the operation
of the machine. The crank-pin is angularly re
lated to themain drive shaft 22 in such a man
50 ner as to impart feeding movement to the feed
roll 30 immediately after the platen moves away
from the bed l6 and the die carried thereby.
A suitable tensioning device (shown in detail
in Figure 9) for the strip is mounted at the
55 rear of the machine, preferably at the guide 21,
so as to cooperate with the feed rolls 30 and 32
in maintaining a suitable tension on the hori
zontal stretch 2 of the strip. As shown on the
drawings, the tensioning device may comprise
60 'a presser 320 hinged as at 32! to a supporting
member 322 and pressed upward. against‘ the
guide rod 21 by a spring 323 which surrounds
a plunger 324. The upper end of the plunger
324 is secured to the presser 320. Its lower end
has a head 325 which bears against a cam ele
ment 326 mounted on the under face of a longi
tudinally slidable bar 321, the plunger extending
through a slot in this bar. As indicated in Fig
ure 8, the bar 321 may be shifted by a suitable
70 lever 329 so as to wedge the head 325 downward;
ly and thus retract the presser from the guide
bar 21 against the pressure of.the spring 323.
When the machine is in use, the strip in this
stretch is fed forward past the die, after which
75 it immediately turns past the guide 28 and moves
upward in front of the machine, thus coming at
once into view of the operator after being scored
by the die.
According to the invention, provision is made
for lateral adjustment of the die on the bed I‘.
To this end, the front face of the bed I8 is pro
vided with a horizontal, transversely extending
guide rod 33, the ends of which are inserted in
sockets 34 ?xed to the supplemental bed. On
the guide 33 are slidably mounted two gibs 35
having parallel guide members extending lon
gitudinally of the bed and engaging opposite side
faces of the punching die. The guide 33 is ar
~ ranged to permit lateral shifting of said gibs and
the punching die crosswise of the backing strip
I8 so that the entire width of the backing strip
can be utilized when the pattern cut by the die
is narrower than the strip. The gibs 35 are re
leasably secured to the guide 33 by suitable
20
means such as thumbscrews 36.
Figure 3 shows an anvil 31 substituted for
the supplemental bed IS, the anvil resting di
rectly on the fixed bed l2 and supporting the
punching die l1 which is secured thereto.
38 is a transversely extending lower guide rod
secured to the front of the ?xed bed l2, and is
provided with a pair of gibs 39 extending longi
tudinally of the bed and movably mounted on the
guide 38 to engage opposite side faces of the
anvil_31 to guide the in and out movements of 30
the anvil on the bed l2 when the machine is
operated.
The lower guide 38 permits lateral shifting of
the lower gibs 38, and the anvil and punching
die, crosswise of the backing strip. Means such
as thumbscrews 40 are provided for securing the
gibs 38 in any position to which they may be
shifted.
Each of the gibs 35 and 39, as indicated in
Figure 4, preferably includes a horizontal sup 40
porting rail 88 the lower surface of which is flush
with the surface of the bed and projects for
ward from the front edge thereof so as to form
a virtual continuation of the bed surface on
which the die i1 (Figure l) or the anvil 31 (Fig 45
ure 3) can ride when pulled out in front of the
machine to receive a shoe upper. Each of the
gibs also has a vertical face 6| which extends
forward with the face 60, and also extends rear
ward of the front edge of the bed to act as a 50
lateral guide for the die or anvil so that the die
will travel in a de?nite path when pulled out
to receive work and when pushed back for a
punching operation on the work. An adjustable
stop 62 (Figure 2) may be mounted on the bed 55
to determine accurately the operating position
of the die.
'
The lower guide 38 is so spaced below the up
per-‘guide 33 that the supplemental bed I6 and
the anvil 31 may be used interchangeably, the 60
supplemental bed Hi and the upper guide and its
gibs being removed when the anvil is used, as
indicated by Figure 3.
Figure 5 shows a backing strip Illa the ends
of which are brought together and united to each 65
other as at 42, so that the strip is in the form of
an endless band and is capable of passing re
peatedly through the machine without rethread:
ing. A receptacle 43 containing a quick drying
liquid 44, such as a composition consisting of 70
shellac and a suitable dryer is associated with the
endless strip i8a as shown by Figure 5, and is
formed and arranged to permit the passage of
a portion of the strip through the liquid 44, so
that said liquid ?lls die impressions previously 75
9, 108,447
formed in the strip. The receptacle 43 is located
at such distance from the punching die that the
liquid is solidi?ed by drylng‘before it reaches
‘ the die, and in effect wholly or partially ?lls or -
eradicates the die, impressions, so that the stripv
is in condition to receive other die impressions
without having its surface objectionably muti
lated. The receptacle may have a suitable “doc
to " device 4!, designed to remove surplus liquid
.
_
3
being preferably of polished aluminum or allo’
of aluminum.
On the front of the machine is .
mo ‘ted a guide barp'IB which extends horizon
tally'across the front of; the machine below the
front edge of the bed ‘It. Mounted on the guide
bar 16 are two gibs or guide members ‘ll, each of
6 .
these guide members being adiustably secured‘
to the bar 16 ‘as by a set screw". As indicated
in Figure 12, the gibs ‘II are similar in general
10 from the portion of the strip leaving the recep- _ construction to the gibs 35 or I8, but the parts '10
tacle.
‘
are di?erently proportioned. Each of the gibs
The platen I! is provided with a downwardly
‘ll comprises a guide rail portion 82 having av
facing ?at-surfaced face plate “- of aluminum verticalsurface adapted to‘ engage a side of a
or alloy of aluminum such as “duralumin", which flat die so as to guide the’die as his moved into
15 contacts with the upper surface of the backing and out of its operative position in the machine. 15
strip when the platen descends, as shown by Each gib also'has an’ upright stem portion ll '
Figure 11. The bottom surface of the face plate ' (Flgure'12) connecting the rail 82 with a lower
48 is smooth and polished, so that its impact on
the backing strip, as it is supported by the strip
ping plate of the die, ?attens the slight ridges l!
_ formed on said strip during a, pre?ous passage
'of'the strip through the machine. By inverting
the strip after a passage, said ridges are on the
upper side’ of the strip during the next
e,
40
'
hid
dd
dd
enlarged portion 86,. the latter being provided
with a transverse bore 88 through which the guide
bar v‘l6 extends. ' The guide ‘rail 82 is preferably $1?
narrow, the forward portion thereof having a
.flange with a horizontal surface‘ ill flush with
the surface of the bed," when the gib is in place.‘
this guide surface 90 thus being virtually a con
and are ?attened'by the face plate when the tinuation of the bed surface so that the die may 25
latter presses down against the stripping plate be readily slid out in front of the machine on the
of the die. The strip therefore passesgforward. rails 90 to facilitate the removal of a‘ punched
from the die with its upper surface in a smooth. upper and its replacement by an upper to be
condition. Figure 11 shows a portion of the face operated upon. As shown, the rails 82 and their
plate 46 but not the platen. In this figure," ?anges are preferably thin as are also the upright
designates the die, ‘la the stripper plate of the portions 84 of the gibs, the purpose of these fea
die, and 48 one of the die punches.
tures beingrto facilitate the use of dies in punch
Instead of, or in addition to, the lateral shift
ing patterns on any desired portions of “formed"
ing of the die to change the relation between the' uppers, that is, uppers having their ends stitched
die and backing strippthe strip itself may be ‘ together at the rear so as to form a closed loop,
laterally shifted. To this end, as shown by Fig
as illustrated in Figures 17, 18 ‘and 19.
ure '7, the re-wind shaft l9 and supplying shaft
The machine illustrated in Figure 15 is also
25 may be made considerably longer than the provided with a backing ‘strip 92 of paper or
width of the backing strip, that is, the length of the like having a portion 94 stretching across
the roll 2% into which the strip is converted, so the face plate ‘M longitudinally of the bed and
that the roll 2i may be moved endwise on the having an adjacent portion 98 extending upward
supplying shaft 25. Furthermore, the machine ly in front of the machine where it is before
is supplied with guide means which are laterally
the eyes of the operator. The feeding mecha
movable in such a manner as to shift the path nism for this backing strip, which may be similar
of the backing strip laterally. In Figure 8, the to the feeding means partially indicated in Fig-'
position of the strip it, while following one path, ure 5, is adapted to feed the strip in such a direc
is shown in full lines, its position while following tion that it moves forwardly past the plate ‘it
another path being shown in dotted lines. As and upwardly in front of the machine. ri‘hus
shown, the strip guiding means includes an elon- ' the portion M of the paper, which is in active
gated rod 50 inserted in ori?ces in the sides of useduring the operation of the machine, is fed
the machine frame and adiustably secured as by at once into view so that the operator can readily
a set screw 5i, and a pair of guides 52, each and promptly detect any abnormalities in the
formed as shown by Figure 10, each of said guides functioning of the backing strip. For example, if
having a tapped ori?ce hill, the threads or" said the strip is being fed an insu?cient distance so
orifices being formed to engage right and left ' that there is danger of its being chopped up by
screw threads 5t‘! on the rod bi]. The length of.’ the overlapping successive impressions of the
the rod 5% is such that the guides 52 may be later
die knives, this quickly becomes manifest to the
ally shifted as a unit to guide the backing strip operator and can be, promptly remedied.
either in the path shown by full lines, or in other
As illustrated in Figures 16 to 19, a hat die iii!)
paths such as that shown by dotted lines in is slidable on the gibs ‘it. This ?at die may be 60
Figure 8, the rod being bodily adjustable endwise constructed in the usual manner- with a base
when the set screw 5! is loosened. The guides
M2 over which is a stripping plate EM capable ‘
52 can also be adjusted toward and from each of being pressed toward the base against suitable
other by rotation of the rod 50 to accommodate springs, the stripping plate having apertures
strips of different widths.
-
A partial “front elevation of a modi?ed’per
forating machine is illustrated in Figure 15. This
machine is provided with a bed ‘ill from which
a pair of side members 'H rise, the upper portion
therein for the punching or cutting knives such (55
as indicated at M36. in order to assist the opera
tor in holding an upper in place on the stripping
plate, one or more spring clips idii may be at
tached to the outer end of the stripping plate,
70 of the machine being similar, if desired, to the’ these clips extending toward the inward end of 70
machine illustrated in Figures 6 and 7. The the die and being for the most part spaced above ,
platen ‘i2 is vertically movable toward and from the face of the plate Wt. Figure 13 illustrates a
the bed in a'manner similar to the movement of die adapted to perforate a design on the side
the platen IS. A face plate 14 may be provided of a formed upper iiii such as is illustrated in
75 on the lower face of the platen i2, this face plate
Figure 14. In perforating an upper of this kind,
4
2,108,447
of the strip so that impressions made by the die
Fflgure 18, the upper being moved forward in , on the strip will be spaced as desired from the
edges of the strip.
such a manner as to embrace the two gibs ‘l8
5. In a machine for. cutting designs in shoe
and the die I". According to the invention,
it is placed on the die in the manner shown in
the die itself is made only wide enough to accom
modate the particular design to be cut in the
uppers or the like, a cutting die, a bed for sup
upper. Hence, in the case of a small design
such as that illustrated in Figure 14, a relatively
a working stroke toward said bed and dies, a
backing strip having a portion between the platen
narrowsdie can be employed, the gibs ‘I8 being
and bed and progressively movable longitudinally
of the bed between actuations of the platen tov 10
10 adjmtable' laterally to engage the sides of a die
of any width. By using narrow dies, the opera
tor can easily embrace the die and gibs with a
receive successive spaced impressions by said die,
guides on said bed to guide in and out movement
formed upper in the manner indicated in Figure
of the die thereon, a pair of edge-engaging guides
for said backing strip, means for simultaneously
adjusting-said strip guides toward or from each
other to accommodate strips of different widths,
and means for adjustably shifting both said strip
guides laterally as a unit.
18. When the upper has been moved forward
15 far enough to clear the clips I08, the outer edge
of the upper is inserted under the ends of the
clips ill and the upper is moved back until
it can be pushed against the gage pins H0. The
clips III are then pressed down by the operator's
~20 thumbs so as to pinch the upper against the
face of the stripping plate I04, as illustrated
in Figure 19. The upper and die may then be
moved into operative position in the machine,
this forward movement being limited by a stop
25 element “2 which is attached to the front end
of the die base I02 so as to engage the front face
of the machine. A suitable guard member Ill
extends across the opening between the platen
and the bed, as indicated in Figures 15 h and 16,
the clearance between the guard Ill and the top
of the die being insumcient to permit the ?ngers
or thumbs of the operator to pass the guard.
This positively prevents any possibility of injury
to the operator by having ?ngers caught between
r35 the platen and the die.
It is evident that various modi?cations and
changes may be made in the embodiments of the
invention herein shown and described without
departing from the spirit or‘scope of the inven
tion as de?ned in the following claims.
I claim:-—
'
1. In a machine for cutting designs in shoe
‘uppers or the like, a cutting die, a backing strip
for the work above said die, means for causing
.45 said die to cut upwardly against said strip, means
for feeding said strip after each cutting opera
in
porting said die, a platen above said bed having
6. In a machine for cutting designs in shoe up
pers or the like, a bed for supporting a die, a 20
platen ‘above said bed having a working stroke
toward said bed, a backing strip having a stretch
between the platen and bed and progressively
movable longitudinally of the bed between suc
cessive actuations of the platen, guides on said 25
bed to guide in and out movement of a die there
on, and means for lateral relative adjustment of
said strip and guides in the same direction where~
by substantially the entire width of the strip may
be utilized by a die which is narrower than the 30
strip.
7. In a machine for cutting designs in shoe up
pers or the like, a bed for supporting a die, a
platen above said bed having a working stroke
toward said bed, a backing strip having a portion 35
between the platen and bed and progressively
movable longitudinally of the bed between suc
cessive actuations of the platen, guides on said
bed to guide in and out movement of a die there
on, and means for laterally adjusting said guides 40
in the same direction, whereby substantially the
entire width of the strip may be utilized by a die
which is narrower than the strip.
8. In a machine for cutting designs in shoe
uppers or the like, ,a bed for supporting a die, a
strip directly opposite the die, means for feeding
platen above said bed having a working stroke
toward said bed, a backing strip having a portion
between the platen and bed and progressively
movable longitudinally of the bed' between suc
cessive actuations of the vplaten, guides on said 50
bed to guide in and out movement of a die there
on, and means for laterally adjusting said strip
to permit the entire width of the strip to be
utilized by a die which is narrower than the strip.
55 said strip after each cutting operation and means
9. In a perforating machine, a ?xed bed, a 55
tion, and means for laterally adjusting the oper
at g position of said die.
. In a machine for cutting designs in shoe
~50 uppers or the like, a cutting die, a backing strip
for the work above said die, means for causing
said die to cut upwardly against said strip, means
for maintaining tension on the portion of the
for laterally adjusting the operating position of , transverse guide bar mounted on the front of the
machine below the front edge of said bed, and a
.
3. In a machine for cutting designs in shoe ’ pair of guide members adjustably secured to said
uppers and the like, a cutting die, a backing strip guide bar, each of said guide members including a
for the work above said die, means for causing rail portion extending longitudinally of the bed
the die to cut upwardly against said strip, means and adapted to be slidingly engaged by a side
said die.
for feeding the strip after each cutting operation,
65 ing the lateral relation of the die and the path
surface of a die.
10. In a perforating machine, a ?xed bed, a
transverse guide bar mounted on the front of
the machine below the front edge of said bed, a 65
of the strip so that impressions made by the die
on the strip will be spaced as desired from the
side edges of the strip.
4. In a machine for cutting designs in shoe
70 uppers and the like, a cutting die, a backing strip
for the work above said die, means for causing
the die to cut upwardly against the strip, means
for feeding the strip, means for maintaining ten
sion on said portion of the strip, and means for
75 changing the lateral relation of the die and path
bar, a supplementary bed resting on said ?xed bed
between said guide members, a transverse guide
'bar mounted on the front of said supplementary
bed and related to the front edge thereof in the 70
same manner that the ?rst-mentioned guide bar
is related to the front edge of the ?xed bed.
11. In a perforating machine, a bed, a platen
over said bed, means for moving said platen to
ward and from said bed, a die on said bed having 75
‘ whereby said die makes a longitudinal series of
impressions on the strip, and means for chang
pair of guide members adjust-ably secured to said
5
2,108,447
a width selected according to the pattern thereon,
and a pair of laterally adjustable guides movable
in the same direction engaging the sides of said
die.
'
12. In a Perforating machine, a bed, a platen
above said bed having a working stroke toward
said bed, a backing strip extending longitudinal
ly of the bed between said platen and bed, guide
means for a die on said bed, and means for lateral
relative adjustment in the same direction be
tween said guide means and said strip.
13. In a perforating machine having a bed and
15
20
25
30
a platen above the bed, a backing strip having a
stretch between the bed and platen, means at the
rear of the machine for intermittently feeding
said stretch of the strip forwardly, and means at
the rear of the machine for maintaining tension
on said stretch of the strip.
14. In a perforating machine having a platen,
die and a backing strip extending between said
platen and die, a pair of edge guides for said strip
threaded on a rotatable shaft with right and left
hand threads respectively for simultaneous ad
justment of said guides toward or from each
other, ‘and means for longitudinally, shifting ‘said
shaft.
15. A perforating machine comprising a ?xed
bed, a reciprocating platen, a punching die sup
ported below the platen, and a backing strip
moved progressively and guided in stretches in
cluding a forwardly moving stretch between the
die and platen, and an upwardly moving stretch
containing die impressions and facing the front
of the machine, the ends of the backing strip be
35 ing united to each other so that the strip is end
less and capable of passing repeatedly through
the machine in a given direction.
16. A perforating machine comprising a ?xed
bed, a reciprocating platen, a punching die sup
40 ported below the platen, and a backing strip
moved progressively and guided in stretches in
cluding a forwardly moving stretch between the
die and platen, and an upwardly moving stretch
containing die impressions and facing the front
45 of the machine, the ends of the backing strip
being united to each other so that the strip is
endless and capable of passing repeatedly through
the machine in a given direction, said machine
comprising also a receptacle for a quick dry
ing liquid, said receptacle being formed and ar
ranged to permit the passage of a portion of the
endless strip through said liquid, so that the latter
?lls and is solidi?ed in die impressions previously
formed in the strip.
17. A die-guiding element for a perforating ma
chine, comprising an elongated rail, a narrow
shank extending down from an intermediate point
of said rail, and an enlarged terminal portion at
the lower end of said shank having a bore there
through to 'receive a transverse guide bar, said 15
rail having a vertical die-guiding face extending
the entire length thereof and a horizontal die
supporting face extending from said shank to an
end of the rail.
18. A method~ of operating a perforating ma 20
chine having a cutting die and a paper backing
strip, which comprises feeding the strip through
the machine in the operation thereof, whereby a
series of impressions is made on said strip, shift
ing the die laterally to clear the impressions al~ 25
ready made on the- strip, feeding the strip through
again whereby-a second series of impressions is
made thereon, repeating the lateral shifting of
the die and feeding of the sheet until the strip is
substantially covered on one side with impressions, 30
reversing the strip so as to present the opposite
face thereof to the die, feeding said strip through
the machine a plurality of times, and laterally
shifting the die between successive runs of the
strip through the machine.
19. In a machine for cutting designs in shoe
uppers or the like, the combination with a cut
ting die, a backing strip for the work above said
die, the width of the strip being greater than the
width of the die and means for causing said die to 40'
cut upwardly against said strip, of means for ad
justing the die laterally into any operating posi
tion across the width of the strip.
STIG E. ROSENBERG.
45
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