US1631041A - Gauge for perforating machines - Google Patents

Description

y W. F. LAUTENSCHLAGER GAUGE FOR PERFORATING MACHINES Maw Filed Jan $2.

May 31,1927. 1,631,041

w. F. LAUTENSCHLAGER GAUGE FOR PERFORATING MACHINES Fi d Jan. 17-. 1924 2 Sheets-Sheet 2 WILLIAM F; LAUTENSCHLAGER, or CINCINNATI, oIIIo, ASSIGNOR, To 'rmi MACHINERY COMPANY, or BOSTON, mssacnnsnr'rs, A conronerion i GAUGE non rn'nro e: mane meanness.

Application filed January 17, 1924. Serial No. 686,816.-

This invention relates to a gauge for perforating machines and more especially to one adapted for positioning small parts'of irregular contour. v

In the shoe manufacturing industry at the present time, many styles of shoes, especially I womens shoes, call for the perforating of surrounding the pattern to cut the part the required form and size. The die thus cuts out the part and'perforates the pattern in it simultaneously, thereby securing the accurate positioning of the perforating on the part. This method is, however, wastefulof the stock and requires the addition to the die of a knife edge for cutting out thetpart,

both of which considerations add grea must be done before the perforating operation, then an extra die minus the outline knife edge is necessitated and the gauging of such parts in proper position in the inachine re 'uires care and time slowing down apprecia ly the speed of the operation.

The main object of my invention is the provision of a gauge for perforating nachines whereby shoe parts may be. ra idly and accurately positioned in the mac ine, thereby speeding upthe work and obviating all danger of the perforated design being twisted or out of position or alignment in the part. v r 4 Another object of the inventioniis tosimplify and reduce the cost of the dies used for this work by rendering the outline cut-- ting knife unnecessary and thereby. to perforate both beaded andrawedge parts with the same die. 4 v f Other objects of the invention will be more specifically set" forth and described hereina ter.

In one of its forms my invention contemv lates the provision of a gauge, preferably in plate form, provided with a cut-out portothe expense of theseparts. When the parts have a beaded edge, however, which work United ssued tome October 31, 1922, having one 8 2- 2 in'Fig. 1; Fig.3 is a view in tion, recess or o ening, suitably shaped to rece ve and hol the shoe part tobe perforated by frictional contact. with its entire edge, the gau e being provided with suitable means where y ,it may be expeditiously mounted in absolutely accurate position in the machine for the perforating operation. By providing a number of these gauges and by having them filled with shoe parts to be perforatedby unskilled labor, it is ossible for the skilled operator-of the per orating machine to insert and remove loaded gauges and operate the machine with eat rapidity.

If desired, the shoe part olding recess may be provided with a suitable inwardly projecting flange on the reverse side of the gauge to afford a better support for the edge of the shoe part and the frictional enga 'em'ent,'or on the reverse sideof the gauge, t e

entire recess may be covered over by perforatable material for supporting the shoe part. The mere fact that this support will be perforated withthe design on the first 'use of the gauge, will not in any material degree affect its use porting means. v In the drawings illustrating one form of my invention, Figure 1 is a plan view of the work support of the machine illustrated in tates Letters Patent No.v 1,434,060,

afterwards as a supform of my invention appliedthereto; Fig. 2 1s a central cross-sectional view on line erspective of'a small portion of the gauge a wcent the cut-out or recessed portion drawn on .an enlarged scale to illustrate the character of the edge of the opening or recess which is adapted to hold the shoe part therein by frictional I contact; Fig. 4 is a detailed sectional view of the means provided for'accurately positlonmg the gauge in the machine for'the perforating operation; Fig; 5 is a plan view of the gauge looking towardsits right side and showing the'cut-out portion or shoe part holding recess provided with an inwardly extending flange on the reverse sideof the gauge for su pportmg' the edge of the shoe part; Fig. 6 is a cross sectional view on line 66 in Fig. 5; Fig. 7 is a view similar to Figy5 but-showing the shoe partholding recess entirely closed on the reverse side of the gauge with a layer of perforatable material for supporting the shoe part in the repatterns for cutting cess, and 8 is a sectional view on line 8-8 in Fig.

construction of the machine in which it is to be used or it may be made in various sizes; The size, however, 1s not mater al so long as it projects a sulhclent distance from the machine, when in; operative position, to.

afford the. operator free and ample opportunity to grasp its forward end for handllng. The plate may be made of any suitable light,

strong and easily handled material, such as cardboard, leather-board or similar material and I have found that pattern board commonly used in shoe factories for making adapted for this use.

The edge 14, of the opening 12 is preferably roughened to increase its frlctlonal holding power upon the edge of a shoe partplaced in the opening and this end may be accomplished in any. suitable manner such as by forming the recess or opening 12 by the use of a grading machine which cuts a corrugated edge with the corrugations perpendicular to the plane of the plate.

For positioning the plate in the perforating machine various means may be employed and one such is shown comprising a pair of holes 16 spaced apart in the plate 10 adapted to engage with frictional ti htness suitable pins 18. The holes 16 may e protected against wear by eyelets clenched therein. The pins 18 may be fixed either on the work-support of the machine if the latters construction and operation permit or on the frame of the machine or on a sepa rate support 20 as shown in the drawings. The gauge support 20 is substantially U- shaped in general outline and maybe mounted on the work-support 22 by means of two pins 24, one in the end of each arm 26, each adapted to fit in a hole 28 in the work-suport and to be held therein by a knurled eaded screw 30, threaded through the end of the work-support to bear against it. A not or washer 32 on each pin 24 and a lug 34 riveted further forward to each arm 26, both on the under side thereof, serve to .hold the support slightly above the top surface of the work support to prevent interference with a buffer or backer strip 36 and to hold the gauge support against tilting motion.

The forward portion of the gauge-sup port indicated as 20 is slightly offset downwardly in relation to the two arms 26 to bring its upper surface on a level with the top-surface of the buffer-strip 36 so that outshoe parts is well the surfaces upon which the plate rests when in operative position may'lie in the same plane as shown in Figure2.

In the top surface of the work-support may be arranged a'plate 38,preferably of soft brass, to protect the cutting edges of the die. As a general rule this function is performed by the buffer strip but the provi-' sion of the brass plate is an added security. In Figures 5 to 8, Inclusive, s. shown a form of gauge in which the shoe part holding opening or recess 12 is provided with additional means for insuring the retention of the shoe-part therein during the handling, of the gauge and the perforatingoperation. In the ordinary run of shoe parts these means may not be necessary since the usual stiffness of those parts will hold-them in frictional contact with the edge of the recess 12 to prevent falling out. In other. cases, however, where the parts are large and made till of very light or flimsy leathelgit maybe found. desirable to provide means in addition to the edge frictional meansfor holding them in place.

In Figures 5 12 of the gauge is shown as having a flange 40 on its reverse or bottom side extending inwardly toward the center of the recess which further supports'the shoe part in position. This flange may be made in' any suitable manner but preferably is formed by pasting a strip of thin, hard paper around the edge of the recess on the reverse side of the gauge.

In Figures 7 and 8 is shown a construcand 6 the edge of the recess jun tion in which the recess is entirely closed on the back of the gauge by thin paper 42 pasted thereon. This forms a pocket in the front face of the gauge adapted-to receive and hold the shoe part securely therein no matter how thin or flexible it may be. The aper 42 in this latter form will of course e perforated With the design cut. on the shoe part'the first time the gauge is used but since each gauge will be used for but a single shape and'size' such perforations will not affect the operation of the back 42.

In the use of my invention, the operator takes a gauge having a recess adapted to receive the shoe'parts about to be perforated, places a part in the recess in proper position. lays the gauge on the work-support and presses it down upon the positioning pins and th'en starts the machine which makes one perforating operation and stops as is usual with machines of'this character. In placing the gauge in position the operator handles it by that portion which projects forwardly over the gauge support. retains her 'hold'upon it and instantly removes it from the machine when perforated and then removes the part from the gauge which last act may be accomplished by lightly tapping the rear end of the gauge against a fixed ohject. This operation does not require the each different size and different contouriof' shoe part, yet they can be made at such a low cost that the cost of the perforating operation mav be materially reduced by having a number of each particular gauge to permit the same to be loaded with shoe parts by cheap unskilled labor rather than by the expensive skilled, operator of'the perforating machine. In such a case,'the loaded gauges may be delivered to the operator in stacks and she then merely runs them off in the perforating machine rapidly and without loss of time. This will be found to increase the speed of this Work materially and to reduce the cost ofthis operation. The unloading may .likewise be the duty of the unskilled labor. When the gauges are used in this manner it may be found advisable to use the last form described in which the recess is closed at the'baek because such gauges may be subjected to vigorous handling without disturbing the position of the shoe parts therein.

It will be observed that by the use of my invention the work of perforating individual shoe parts is greatly simplified, improved in quality and alignment and materially reduced in cost. In addition, the simplification of the dies by the eradication of theoutline cutting-knife eliminates a further element of cost. The rapidity, however, with which the work may be placed-in position in the machine, perforated and removed therefrom is an important feature in reducing the cost of that operation.

Although my invention is illustrated as embodied in a gauge which is suitable for use in the perforating machine of the patent to be hereinbefore referred to, yet it may be applied, to perforating machines of other types generally, in some cases perhaps necessitating slight ohangesin the gauge, all of which, however, will be apparent to one skilled in the art.

It is to be understood that my invention is not to be limited to the specific form of gauge herein shown and described since it may be embodied in other forms of construc-.

claims.

What I claim is 1 A' gauge for perforating machines comprising a plate having a cut-out portionor opening for holding a shoe part by frictional engagement between the edge of said shoe part and the edge of said cut-out portion, said cut-out portion being of the same'contour and size as said shoe part, and meansfor positioning said gauge in the machine.

2. A gauge for perforating machines comprising a plate having a cut-out portion or opening designed to receive and hold in flat condition the shoe part to be perforated,

said opening bein of a size and shape corresponding to the size and shape of said shoe part in order to. hold said shoe part within said opening by frictional engagement between the edges of said opening and said shoe part.

3. A gauge for perforating machines comprising a plate having a central opening of a size and shape suitable for receiving and holdingin fiat condition the shoe part to be perforated, the edge of said opening being formed for frictional engagement with the edge of said shoe part to hold the same within said opening and means for positioning I said plate in the perforating machine.

plate form having an interior cut-out portion or opening for holding the shoe part to be perforated in flat condition by frictional engagement between the edge of said cut-out portion and the edge of said shoe-part and means for detachably positioning said gauge in the machine, I a

5. In a device of the character described, the combination with a work-support of a plate guage having an interior cutout portion or opening for receiving in fiat form and positioning the work to be operated upon, said opening being of aformcorresponding in size and contour to the size and contour of the said work in flat form, and

and hold the shoe part, the edge of said outout portion beingroughened to give'a frictional contact with the edge ofthe shoe pafi't to hold it in said opening.-

. 7. A perforating machine having, in combination, a work-support, a gau e-support mounted on said work-support an provided.

with positioning pins and a plate having an opening for receiving and holding the shoe rrw j part-to be perforated, said openin sponding in size and shape to said s oe part to permit it to bemounted in said opening and held therein by frictional engagement between theedge of said shoe part and the edge of said opening; said plate being provided with holesto receive the positioning pins on said gauge-support in or or to posltion said plate thereon;

8. The combination in a perforating machine of a platehaving a cut-out portion of a shape and size to receive and hold a shoe part by frictional engagement between the edge of said shoe part and the edge of said cut-out portion, the plane of said shoe part.

being substantially in alignment with the to receive and hold a shoe part in flat condition by frictional engagement between the edge of said shoe part and the edge ofsaid cut-out portion, said plate being'provided with suitable holes whereby it may be mounted on said pins and posit oned accurately on said work-support.

10. A perforating machine having, in com-.

bination,. with a work-support, a pin-carryingsupport anda plategauge having acutout-portion or recess for holding ashoe part for perforating and with suitable holes to receive the pins .on said pin-carrying su port for positioning the gauge on said wor support.

11. "A gauge. for perforating machines having a cut-out portion fitting theshoe part to be erforated, said gauge having on its lower side a flange pro ectmg inwardly into said cut-out portion supporting the tedge of said "shoe part in said cut-out por- 12. A gauge for perforating machines comprising a plate having a-cut-out portion for holding the shoe part to be perforated, said cut-out portion being covered on the lower side of said plate by-a thin paper layer for supporting said shoe part in said cut-out portlon. Y

. 13. A gauge for perforating machines comprising a plate having a cut-out rtion for holding the shoe part to -be pe orated, said cut-out portion being covered on the lower side of said plate by a thin paper layer ,for supporting said shoe part in said cut-out portion and means for in the machine. s

In witness whereof, I hereunto set my hand this twelfth day of January, 1924.

WILLIAM LAUTENS'CHLAGER.

positioning-said plate

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