Improvements in Machinery for Perforating or Ornamenting Parts of Boots and Shoes.
Year: 1898

page_text: Date of Application, 16th Apr., 1898-Accepted, 5th Nov., 1898
Improvements in Machinery for Perforating or Ornamenting Parts
of Boots and Shoes.
A communication from abroad by CHARLES P. STANBON, of Lynn, in the County of
Essex, and State of Massachusetts, one of the United States of America,
Machinist.
I, ALFRED GEORGE BROOKES, of 55 and 56, Chancery Lane, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
The present invention relates to machines for perforating or ornamenting the parts
of boots and shoes, such as tips, vamps, quarters etc.
The object of the present invention is to improve the feeding mechanism to insure
a correct and uniform feeding of the work beneath the punch, and to improve the
operation of the machine in the particulars which will be hereinafter noted.
To the above end the present invention consists of the devices and combination of
devices which will be hereinafter described and then particularly pointed out in the
claims.
The present invention is illustrated in the accompanying drawings in which :-
Figure 1 represents the machine in side elevation looking at the left side
thereof.
Figure 2 is a top plan view of the machine.
Figure 3 is a side elevation opposite to that shown in Fig. 1.
Figure 4 is a front elevation of the machine.
Figure 5 is a fragmentary view of details of construction, parts being in vertical
section.
Figure 6 is a vertical section upon the dotted line shown in Fig. 1, looking in the
direction of the arrow.
Figure 7 shows a detail of the bed of the machine, and showing the construction of
the lower feed plate.
Similar letters of reference refer to corresponding parts throughout the several
views.
In the drawing, A represents a frame of suitable size and shape to support the
working parts, such frame comprising a base a supported by suitable legs ór
standards a¹, whereby the machine may be secured in suitable position upon a work
bench or table in convenient position for the operator.
Rising from the base a is a main frame a² which is cut away as shown at a³ forming
a modified goose-neck construction and at its upper part it is also cut away as shown
at a forming the projections a and a. The upper portion of the frame a² is also. cut
out as shown at a for a purpose to be hereinafter described. Arranged in suitable
bearings as in the frame a² is the lower shaft B, which at its rear end outside of the
bearing as is provided with a suitable stepped pulley b, and a connected hand wheel b¹
by which motion is communicated to the shaft B by a belt from any suitable source
of power, or by means of. which the shaft B may be turned by the operator.
DQ71

page_text: In suitable bearings a formed in the forwardly projected portions a5 and 6 of the
frame u², is arranged for vertical reciprocation a punch stock C carrying at its lower
end any suitable construction of punch c arranged to punch holes in the work as it is
fed beneath the same.
The punch stock C is given a rapid vertical reciprocating movement in the
bearings by means of a link c¹ which, at its upper end is connected to a stud c²
projecting from a collar c³ embracing the punch stock C and at its lower end
provided with an eccentric strap c¹ embracing an eccentric c5 carried by the forward
end of the power shaft B.
The material to be ornamented is supported by a suitable work plate D which is
formed of suitable size and shape to support the material and which is secured in
position upon the lower part of the frame a² in the cut out portion a³ by means of
screws d tapped into bosses d¹ or in any other suitable manner.
It is desirable in machines of this type to adjust the stroke of the punch stock so
that the punch carried thereby will have sufficient movement to entirely pass through
the material supported upon the bed plate in order to completely and entirely sever
the piece punched from said material, and at the same time to so regulate the stroke
of the punch stock that the cutting edge of the punch will not have a too violent
contact with the punching plate or bed which would tend to injure and destroy its
cutting edge.
In order to regulate the stroke of the punch stock in the machine of the drawing,
I have arranged the collar c³ to be adjustable upon the punch stock C and I have
provided a novel adjusting mechanism whereby the position of the collar c³ may be
accurately and quickly adjusted relatively to the punch stock C and thereby regulate
to a nicety the stroke of the punch c.
The adjusting mechanism of the machine of the drawings comprises a wedge co
which is arranged to have a transverse lateral movement in a recess c7 formed in a
punch stock C, the lower end of the collar c³ resting upon the inclined surface of the
wedge c as clearly shown in Figs. 4 and 5 of the drawings.
The wedge c is moved to adjust the collar c3 by means of a screw c tapped into
a threaded aperture in the punch stock C and having at or near its outer end
a groove c³ embraced by a forked arm co on the outer end of the wedge cº.
The collar c³ is held in engagement with the inclined surface of the wedge co by
means of a pin c¹¹, arranged in a slot cl2 formed in the upper end of the punch
stock C above the collar 3, the outer end of the pin cll engaging the upper end of
the collar c³, and said pin c¹¹ is acted on by a suitable spring cl3 which is arranged in
a vertical aperture c¹ in the punch stock C, the outer end of which spring is acted
upon by a set screw c¹5 as clearly shown in Fig. 5 of the drawing.
The screw has a suitably milled head cle whereby it may be turned to cause the
wedge to move along beneath the sleeve c³ and by means of which said sleeve c³ may
be raised or lowered upon the punch stock C, and thereby adjust the connection of
the punch stock C and its actuating mechanism, whereby the movement of the
punch c towards the bed plate d may be accurately adjusted.
In order to insure the accurate feeding of the material being operated upon
beneath the punch, the machine of the drawing comprises what I have termed a
feeding presser foot and also a cooperating feeding dog, the presser foot and feeding
dog being arranged upon opposite sides of the material and having a relative move-
ment towards and from each other to grip the material therebetween, and also
having a simultaneous lateral movement whereby both surfaces between which the
work is held, move, to feed the work, and the dragging of the work over a fixed
surface is obviated. In the present construction the presser foot and the feeding
dog move laterally in a horizontal plane, whereby they are held in engagement with
the work during the entire lateral movement of the feeding stroke, and thereby
uniform and accurate feeding of the material is secured.
In the illustrated embodiment of the present invention the feeding presser foot E
is downwardly and inwardly bent as shown in Figs. 1 and 3 of the drawing, and at
its lower end is flared or broadened out as shown in Fig. 4, whereby it engages

page_text: a considerable portion of the material being operated upon, and will not puncture and
mar the same as would be the case with a pointed presser foot.
The presser foot E is provided with a shank e which extends into a tubular
bearing e', and in order that it may be yieldingly forced towards the feeding dog,
to be described, it is provided with a shoulder e2 against which acts a coiled spring es
located within the bearing e¹, surrounding the shank e, the upper end of spring es
being acted upon by a tubular threaded screw e by means of which the tension of
the spring e³ may be readily adjusted. The bearing e¹ is formed upon a slide e³ in
which is formed a dovetailed guide way e, said guide way embracing a dovetailed
guide e formed integrally with or fixedly secured to the extreme outer end of the
projection of the frame a². The feed dog F consists of a small block having a
serrated upper edge f, and a downwardly projecting shank f¹, the said shank f¹ being
received in a recess f² in a slide f³, the slide f³ having upon its rear face a dovetailed
guide way fembracing a dovetailed guide f5 formed on the front of the frame a²
below the table or work plate D.
The table or work plate D is provided with a slot d² extending transversely across
the same or in the direction of the feed of the work, and the serrated upper edge
of the feed dog F is positioned in said slot to have a lateral movement along the
with its serrated edge preferably lying in the plane of the upper surface of
the work plate D; the said feed dog being adjustably secured by means of a set
screw which is tapped into a threaded aperture in the slide 3 and engages the
shank of the feed dog F.
same,
It is desirable that the presser foot E and the feed dog F move laterally
simultaneously and to secure such an operation of the presser foot and the feed dog,
I have arranged a single mechanism to simultaneously reciprocate the slides e and ƒ³.
This mechanism consists of a lever G which has three arms, g, g¹ and g² and which
is fulcrumed by means of the studs g3 in fixed bearings g4 projecting from the left
hand side of the frame a².
The arm g is pivotally connected at g³ to a short link g which in turn is pivotally
connected at g to suitable lugs 98 on the front of the slide e, and the arm g¹ of the
lever is pivotally connected at go to a jointed link glo which in turn is pivotally
connected to lugs gll formed on the face of the slide 3. The lever G is swung on
its fulcrum to impart lateral reciprocations to the slides e5 and f* by means of a
lever H, which is fulcrumed at h in a bracket h¹, projecting from the side of the
frame a² and which is provided with a slot h² through which passes a set screw h³,
which set screw at its lower end carries a swiveling block h arranged to be adjusted
along a groove h5 formed in the upper surface of the arm g² of the lever G.
The lever H is actuated to swing the lever G by means of a link he which is
pivotally connected at 7 to the free end of the lever H and which at its opposite
end is provided with an enlarged collar h³ embracing the shaft B in the cut out
portion a of the frame between the oppositely placed cams he and h¹º, engaging
cam rolls h¹¹ and 12, upon opposite sides of the collar h³, whereby the lever H is
positively moved in both directions and imparts a positive movement to the lever G,
and through lever G to the slides e and f carrying the presser foot E and the feed
dog F.
It is desirable that the presser foot E be raised against the tension of the
spring e³ after it has completed its feed movement in order to disengage the presser
foot from the work to release the work before the presser foot E and the feed dog F
begin their movement in the opposite direction, to again engage the work preparatory
to feeding it another step. In the machine of the drawing the lifting of the presser
foot is accomplished by means of a lever i which is located in a recess in the slide e
in position to engage a projection or stud (not shown) on the shank e of the presser
foot E.
The lever is fixedly secured to a rock shaft which is arranged in suitable
bearings, the forward end of the rock shaft projecting into the recess of the
slide es

page_text: 25
Fixedly secured to the rear end of the rock shaft. 2 is an arm which is arranged
to be acted upon, upon each rotation of the shaft B by a finger is projecting from a
collar fixedly secured to the shaft B.
The spring is sufficient to force the presser foot E in contact with the feed dog F
and hold the arm it in position to be engaged by the finger i, which acts on said
arm to raise the presser foot, and to return the presser foot, rock shaft and arm to
their normal positions to be again operated by the finger 15 upon the revolution
of the shaft B.
In the operation of this machine after a piece of work has been completed, in
order to remove the work, if the revolutions of the shaft B have not been stopped in
such position that the punch c is elevated from the material, it is customary for the
operator to raise the punch stock and punch by turning the shaft B by means of the
hand wheel band in the machine as heretofore constructed, he would at the same
time, with his other hand, lift the presser-foot, against the tension of its
spring.
Inasmuch as both hands of the operator were thus engaged in manipulating parts
of the machine, it necessarily required him to lose control of the work which was
left free upon the work plate, and in order to remove the work he would have to let
go of the hand wheel after raising the punch from the work.
:
In other words, he would have to position the shaft with one hand and after having
positioned it to raise the punch, release said shaft, grasp the work, and raise the
presser foot which required quite a little time and was generally a clumsy and un-
handy arrangement.
In the present invention, I have provided a presser foot lifting mechanism, so
arranged that the operator can actuate the same to lift the presser foot with the
same hand, and at the same time that he grasps the hand wheel for the purpose of
turning the shaft to raise the punch, leaving his other hand free to remove and renew
the work. For the purpose of securing the above suggested result, the machine of
the drawing comprises a rock shaft k which is mounted in bearings upon the side
of the frame a² (see Fig. 1). The rock shaft k carries an arm 2 which is fixedly
secured to said rock shaft and which at its upper end is engaged by a suitable
spring, the lower end of the arm 2 being in position to engage a pin project-
ing from the arm 24 of the rock shaft when the rock shaft k shall be rocked against
the tension of the spring k whereby as the rock shaft is rocked, the lower end k
of the arm k² will engage the pin k projecting from the arm moving the arm it
outwardly and thus rocking the shaft 2 to raise the presser foot E.
In order to rock the shaft k, there is fixed to its rear end a lever 7 which is im-
mediately adjacent to the hand wheel b¹ and at its lower end has a suitable thumb
piece which is in position to be engaged by the operator by the thumb of the hand
by which he grasps the band wheel b¹ and thus the hand wheel b¹ may be grasped to
raise the punch stock C and the lever depressed to elevate the presser foot E at
the same time.
The work plate D, which is preferably made of steel or cast iron is cut away as
shown at d adjacent to the slot d², and in the recess thus formed is placed a plate of
soft metal do preferably brass or other suitable metal, the plate do secured in the
recess d³ with one side forming one boundary of the slot d² by means of a rod ď
which passes through an aperture 8 (see Fig. 5), and the upper end of said rod is
provided with a threaded portion engaging a threaded aperture de in the plate d³.
The plate de may be circular or any other suitable shape desired, but as shown in
Fig. 7 of the drawing I prefer to form the plate de polygonal in outline, having a
plurality of straight sides do, whereby to accommodate a punch having more than a
single punching point, and whereby the surface against which the punch acts, when
it becomes worn, may be shifted by turning the plate do to thus bring a new surface
under the punch.
:
m represents a suitable guide or gage which at its rear end is provided with a
slot (not shown) through which passes a set screw m¹, by means of which the gage m

page_text: is adjustably secured to the lug m² projecting from the side of the frame a² (see
Fig. 3).
At its forward end the gauge m is provided with a projecting finger m³ and upon
its under surface below said finger with a rounded boss m, and the edge of the
material which is being operated upon, is positioned beneath the finger m³ against
the boss m. By means of the set screw m¹, the gage m may be positioned upon
the work plate 1) at any suitable point relatively to the punch and presser foot, and
in order to adjust the height of the finger m³ above the upper surface of the work
plate D, to accommodate the same to different thicknesses of material, I have pro-
vided an adjusting screw m³ which is tapped into a threaded bearing in the outer
end of the gauge m, the lower end of the adjusting screw bearing against the
upper surface of the work plate D, and by means of which the outer end of the
gauge m may be raised or lowered as desired.
The adjusting screw m is engaged by a lock nut me, whereby the screw m³ is
prevented from turning and the desired adjustment of the gage m retained:
In the operation of the machine, power is supplied to the pulley. b by a belt from
a counter shaft, which counter shaft is controlled by a suitable clutch actuated by
a foot treadle, and in order to stop the revolution of the shaft B when the clutch of
the counter shaft is released, I have provided a suitable brake n carried by the upper
end of a plunger n¹ fitted in a sleeve n² fixed to the base of the frame a, said plunger
within the sleeve being acted upon by a spring n³ (see dotted lines Fig. 3) and
connected at its lower end to a lever n which lever is connected by means (not
shown) with the clutch-controlling treadle of the counter shaft, the arrangement
being such that when the operator depresses the treadle to start the machine, the
plungern will be depressed to remove the brake n from contact with the hand
wheel, but when the operator releases the treadle to throw off the clutch, the
spring n³ will immediately throw the brake in contact with the hand wheel b¹ to stop
the rotation of the shaft B.
In the operation of the present invention, the piece of work to be perforated or
punched is superimposed upon the bed plate D with its edge against the boss m* of
the gage m and engaged by the presser foot and feed dog.
A rotation of the shaft B will now through the link e¹ impart a series of vertical
reciprocations to the punch stock C and punch c causing the same to punch a
series of apertures in the fabric, at the same time the presser foot and feed dog.
will, by means of the mechanism herein before described, alternately release and grip
the material and impart thereto an intermittent feeding motion laterally beneath
the punch c.
The machine, if desired, may be provided with a box wwhich is pivoted by a
screw w¹ to the under side of the machine and arranged to, swing'in and out beneath
and beyond the base, said box being provided with a suitable knob w² whereby it may
be turned upon its pivot.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. In a leather punching machine, the combination with a reciprocating punch, of a
feed mechanism comprising an upper member and a lower member, and means to
actuate said members to cause them to grip and feed the work, substantially as
described.
2. In a leather punching machine, the combination with a reciprocating punch,
of a feed mechanism comprising a feed dog and presser foot, means to move the
presser foot intermittently towards and from the feed dog and connected mechanism
to simultaneously move the feed dog and presser foot laterally, substantially as
described.
3. In a leather punching machine, the combination with a feed dog and a feed
pressure foot, of slides carrying said dog and presser foot, a forked lever connected

page_text: to both slides, and means to actuate said lever to reciprocate the slides, substantially
as described.
4. In a leather punching machine, the combination with a feed dog and a feed
presser foot, of slides carrying said dog and presser foot, a forked lever connected to
both slides, means to actuate said lever to reciprocate the slides, and an adjustable
connection between said lever and its actuating means, substantially as described.
5. In a leather punching machine, the combination with a punch stock and punch
and means to reciprocate the same, of adjustable connections between the punch
stock and its actuating means, substantially as described.
6. In a leather punching machine, the combination with a punch stock, of a collar
adjustable thereon, a wedge to adjust said collar and means connected with the collar
to reciprocate the punch stock, substantially as described.
7. In a leather punching machine, the combination with a punch stock, of a
collar movable along said punch stock, a screw actuated wedge carried by the punch
stock and forining a rest or support for the lower end of the collar, spring controlled
devices acting upon the upper end of the collar and means connected with said collar
to reciprocate the punch stock, substantially as described.
8. In a leather punching. machine, the combination with a punch stock and
presser foot, of connected mechanism to impart vertical reciprocations to the punch
stock and vertical and lateral reciprocations to the presser foot, substantially as
described.
9. In a leather punching machine, the combination with a punch stock, and a
power driven shaft and connections to reciprocate said punch stock, of a yielding
vertically movable presser foot, a hand wheel on the power shaft for turning said
shaft to raise the punch stock and a lever located adjacent to the hand wheel and
connected to the presser foot, whereby the presser foot can be raised as the hand
wheel is turned to raise the punch stock, substantially as described.
10. In a leather punching machine, the combination with a bed plate provided
with a slot for the feed dog, of a punching plate fitted to an aperture in the bed
plate adjacent to said slot, substantially as described.
11. In a leather punching machine, the combination with a bed plate provided
with a slot for the feed dog, of a punching plate fitted to an aperture in the bed
plate adjacent to the slot and means for turning the punching plate to bring a
new surface beneath the punch, substantially as described.
12. In a leather punching machine, the combination with a bed plate of a gage
arranged to extend above the same close to the surface thereof, and means to adjust
said gage laterally, longitudinally and vertically on said plate, substantially as
described.
Patch Me Toth day of Apr 090.
WM. BROOKES & SON,
55 and 56, Chancery Lane, London, Agents for the Applicant.