US2194693A - Means for forming shoes - Google Patents

Description

MEANS FOR FORMING SHOES o. A. DEHNE j 2,194,693

- Filed Jan. 12, 1938 4 Sheets-Sheet l I N VENT OR.

Otw Antiiany Define BY M ATTORNEY.

March 26, 1940.

0. A. DEHNE MEANS FOR FORMING SHOES Filed Jan. 12, 1938 4 Shets-Sheet 2 Otto Anthony Ddmg BY f:

26, 1940. o. A. DEHNE 2,194,693

MEANS FOR FORMING SHOES Filed Jan. ,12, 1938 4 Shets-Sheet s 5 mil! I INVENTOR. OttaAnthonq Dahrw w 2 ag- ATTORNEY.

March 26, o. A. DEHNE 2,194,693

MEANS FOR FORMING SHOES Filed Jan. 12, 1938 4 Sheets-Shet 4 D :1 L. J ///i 2 l2 /////L/ 4z// //////L// l$\\\\\\\\\\\ W 1 49 as F168.

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INVENTOR.

ATTORNEY.

Patented Mar; 26, 1940 I i i i i I l UNITED :QSTATES' rMEN O FICE 2,194,6e 3 nANs on FonMinG sHoEs om Anthony Dehne, Union, Application ensen, 1938, Serial No. 184,514 I 11 claims, 1H) g This invention relates in general to-a method Otherwise highly efficient in the performance of and means for making shoes and, more, particuits desired functions. f

larly, to certain new and useful improvements for And with the above andother objects in view, the method and means for attaching, uppers and my invention resides in the novelff eatures of l l I K soles of so-called stitch-down type shoes i form, construction, arrangement, method-and 5 It has long been the practice in the manufac combination of theseveral parts presently deture of shoes, and particularly shoes designed for scribedgand pointed outin the claims. children, to fabricate the shoe in the form of a i 9 n the mp y drawings (4 sheets), so-called stitch -down type, that is to say, a {Figure I is a perspec ive V w of a shoe-manushoe in which the lower marginal edges of thefacturing machine constructed in accordance 10 V upper are flanged outwardly and stitched to the with and embodyin i pres t invention; 3

upper face of the sole exteriorly ofjthe upper. Fig r 2 t ll p an V iBW Of the shoe-mann Frequently a welting strip is, applied to the upper fecturing h l face of the flange prior to the stitching oper F gure 3 is a f m n ary v rtical sec ion l ation for the dual purpose of improvingthe apviewof the machine; i v x 15 pearance of the shoe and increasing its wearin Fi ures is a horizontal sectional view, of the qualities. l machine, taken approximately along the line The process of manufacturing stitch-down and. Figure i i l l other related types of, shoes has been subject to F ure 5 is a transverse fragmentary sect l 50 several inherent difficulties. Afterthe upper has i f the h e, taken along t e l ne 5 -55, 20,

been lasted and the out-turned or stitch down Fi i flangeof the upper has been formed, the upper I i d; 7 are diagrammatic s, Tee must be very carefully positioned over the sole p y, t 'heel a toe Shaping. plates prior to stitching and must be securely held durfi p r Q y P invention; and ing the stitching operation, otherwise theiouter Figures 3, J d 10 are ia mat c Sectio al 25 peripheral margin of the sole inthefinished shoe respectively, l t g the p o e will be ragged and require trimming j and the stages in the ,manufacturing of a shoe in accordlasted upper of the shoe will be somewhat pulled lance With my present inventio l out of normal shape In order to overcome these Referring w in e ydetailend y reference difficulties, it has been common practice t o leave characters to the drawings, which illustrate @a 30 the lasted upper on the wooden last during the V Preferred embodiment; f y. present inventien, stitching operation; Although this procedure has A d i n preferably f e machine to some extent eliminated the difficulties referred s j a' u supportmg legs to, t has not been Wholly ucc f l and I Mmutually connectedlprimarily for added r1g1d- I even introduced a further difiiculty, since ithas Y 1W id ne h meansiof preferably heretofore been found almost impossible to avoid l formed crossibracesei t deforming the inwardly presented bent-over man or from gross-brace P b bemg W1der 1ed gin of the flange alongwhich the flange is in n provided n 3 .9 extending tegrally joined to the upper-Q Thus, the upper guide, 59 e l e at Its lower extremlty i 9 will not come down sharply against the sole but I laterally t d detentslgt i for 40 ii will tend to curve arcuately outwardly adjacent P P F more fully ep e and as best i the sole toward the stitch line bywhich the flange ,seen m Figure l r to l v I trtrainresthrashin I i mgng sv I A f f d 1 1 h lengthwise extending side walls or members a, l urine 3 Des P 9 5 06S is a cross bar a, thus dividing the upper portion l or the seltclndown type, 1n WhlCh ti'le upper and of the frame into two snnnaflycshaped rectangw I sole may be readily secured together in a simple, 1341. openings B the forwardscross Walls of 650 convenient, efiic ent, and economical manner 2111 which are centrallygm awayto provide clearance i i which th steel-down flange of t upper may be recesses ll all as bestfseen'in Figure 4 and for secured against the sole in a close fitting, sharply purposes tly more fully, a peari I defined, undeformed manner; in whichshoes Th side members at, a, are machined along 05 the type, Sta-ted y be q c ly actu ed their inwardly, presented faces to provide lengthwith a minimum of labor cost; and which is wise extending horizontal guide channels or ways 12 having L-shaped cross-section and are each further provided at their inwardly presented vertical faces with a pair of preferably integrally formed laterally spaced vertical guide posts 23, a small cam member m being rigidly mounted flatwise on the horizontal face of each of the ways 12 intermediate its ends, also for purposes presently more fully appearing, and as best seen in Figure 4.

Mounted by screws or other suitable securing means fiatwise on, and extending horizontally across thev upper face of the machine bed or frame A, is a top plate it having a pair of parallel lengthwise extending rectangular aperturies, C similar in width but somewhat shorter than,

and for superposed registration with, the frame openings B and accordingly having a pair of. outer side rails e and a central rail 0* corre-, sponding to the frame or bed members a, a, and co-operating therewith to form a top closure or retaining wall across the ways l2, all for purposes presently more fully appearing and asbest seen in Figure 5.

Shiftablymounted in opposed relation at opposite ends of and extending transversely between the way'slz of each of the frame openings B, is

atively accommodating pairs of companion shap ing plates .9, s, which are retained in the slides l5, l5, respectively, for horizontally swingable movement by means ofthepairs of pivot ended l retention screws l1, ii, threadedly mounted in the slides l5, It, as best seen in Figures 2 and 3.

The pairs of shaping'plates s, s, each preferably comprise two similarly shaped fiat rectangular steel platescut away at respectively opposite corners in quarter-curve fashion, so that, when placed in edgewise abutment, the cut-out portions will match to form somewhat U-shaped openings 0, 0, conforming in contour to the desired finished shape of the shoe at the juncture line between the stitch-down flange and upper thereof, respectively,'in the region of .the heel and toe. Thus the pair of plates 3, conforming to the heel portion, may be referred to as the heel-shaping plates and the pair of plates s may similarly be referred to as the toe-shapingplates. The straight abutting margins 15 of the plates 8 and the similar margins if of the plates's' are angularly machined off with respect to each other, so that the .U-shaped openings. 0, 0, may be pivotally moved in a horizontal plane toward and I away from each other about the pivot screws ll,

when the outer side margins of the plates are parallel and in engagement with the vertical sides of the ways l2, all as best seen in Figures 6 and "I and for purposes presently more fully appearing. 'I'hemargins of the U-shaped openings 0,0, in both the toe. and heel-shaping plates 5, sflare beveled or chamfered backwardlyand outwardly from bottom to top to conform complementarily in cross-sectional shape tothe cross sectional shape of the outer faces of the stitchdown flange and shoe upper adjacent the juncture line therebetweenfor purposes presently more fully appearing and as best seen in Figures 8 and 9. p

Each of the slides 15' is provided centrally of its transverse margin with a suitable recess 18 turn, at its lower end pivotally connected for rotatively receiving the inner end of an adjustment screw l9 threadedly mounted in and extending outwardly beyond the adjacent side wall of the frame or bed A and being provided on its outwardly extending end with a suitably knurled knob or handle 2|], whereby the toe slide I5 and its associated shaping plates s may be shifted lengthwise along the ways l2 toward and away from the heel slide l5 to any desired posi- "tionof adjustment and retained in such adjusted position. The slide i5 is provided centrally of its transverse margin with three horizontally aligned inwardly extending recesses 2!, 22, 23,

and an outwardly extending U-shaped horizontal frame 2'6 sized to project freely into the clearance recess H of the frame-wall b. Mounted for axially shiftable movement in, and extending outwardly from, the recesses 2!, 23, is a pair of parallel pins 25 provided at their outwardly extended ends with a transverse cross plate 26 abuttingly engaging intermediate its ends a compression spring ill mounted axially in, and extending outwardly from, the recess 22, whereby the plate 26 is norinallyurgedoutwardly toward the bight of the U-shaped frame 24, all as best seen in Figures 3 and 4.

Rotatably mounted at their ends in the side walls a of the frame A and extending-horizontally therebetween, is a pair of parallel horizon- "tally spaced shafts 26, each being rigidly provided intermediate its ends with a pair of laterally spaced actuating levers 29 each positioned approximately midway of the respective frame openings B. the levers 29 of each of the shafts 28 being accordingly transversely aligned in pairs longitudinally of the frame openings B and being further provided at their upper ends wth a camlike surface 31! and at their lower ends being bifurcated in the provision of a U-shaped slot 3i, all for purposes presently more fully appearing and as best seen in Figure 5.

Also rotatablymounted at its ends in, and extending horizontally between, the side walls a of v the frame A preferably adjacent the forward legs 3, l, is a shaft 32 rigidly provided intermediate its ends with a pair of laterally spaced bell cranks 33, each having an upwardly extending or vertical leg intermediately provided with a recess 35 and atits upper end provided with a tapered projecting arm 36 for engagement between the cross plate 25 and the bight of the U-shaped member 24 of the bracket l5, the bell crank 33 further being provided with a horizontally extending arm 3'! pivotally connected in the bifurcated end 38 of a diagonally extending link 39, which, is, in to a horizontally extending foot lever 49.

The foot lever ill is at its one end swingably mounted between the rear legs I, 2, of the frame A by means of the shaft ll and at its forward end extends freely through and outwardly from the slot and at its extended end is preferably integrally provided with a suitable pedal 42, the foot lever it further being apertured intermediate its ends for receiving one end of a tension spring 63', which is, in turn, at its lower end attached to the cross-brace 5 of the machine frame or bed A for normally urging the foot lever 40 and its associated parts in upwardly disposed position. It may be further stated in this connection that the foot lever 40 is of such width and longitudinal flexibility that it may be shifted laterally into the detent slot [0 for retention in downwardly depressed position against the action of the spring 43 when so desired by the operator,

nected to the proximate actuating lever 29. Pivotally connected at its opposite ends in the recess M of the companion actuating levers 28, is a horizontal link d6 adapted to connect the respective actuating levers for simultaneous movement, all for purposes presently more. fully appearing and as best seen in Figure 3. i

Loosely mounted on, and extending horizontally across, the cam surfaces 39 of each transversely aligned pair of'theactuating levers 29, is a rectangular bed plate ll cut away at its corners to fit snugly against and between the machineframe guide posts l3 and being sized for somewhat loose fitting disposition within the machine- 7 frame opening B for vertically shiftable movement therein. Mounted loosely on the upper face of the bed platel'l, is a similarly shaped and sized pressure plate ltprovided along its upwardly presented flat face with a depression or recess 49 shaped to conform to the desiredcontour of the sole-bottom of the finished shoe. It will, of course, be understood by those familiar with the art that this sole-forming depression 49 may be omitted in the event that an entirely flat-bottomed shoe is desired.

In actual practice, it has been found that the socalled pressure plate and shaping plates should preferably be varied in accordance with the size of the shoe which is to be manufactured, although it is not necessary that they. shouldbe varied or changed for each change in size.

By reason of the fact thatthe' toe slides l5 are shiftable to various positions of fixed adjustment, it is possible to utilize one set of shaping plates for a range of different sizes. By correspondingly shaping the sole-forming depression of the 'pressureplate to accommodate the largest desired size, it is possible to use a single pres-' sure plate and a single set of shaping plates as a unit for the accommodation of a given range of sizes. In fact, it has been found that three different sets of shaping and pressure plates are suflicient to coverthe entire normal range of childrens stitch-down sizes with great accuracy.

It will, of course, be understood by those familiar with the shoe industry that the variety of differently sized shaping and pressure plates will, to some extent, be governed by the volume of production in a given size and the quality of shoe being manufactured. If, forinstance, a very high grade, expensive shoe is being manufactured, it may be desirable andprofitable to employa different set of shaping and pressure plates for each different size of shoe. This may also be satisfactory and profitable in the manufacture of a very low priced shoe where relatively large quantities duced at one time, so that it is notnecessary to change the plates too often. I

In this connection, it should further be'noted that the toe and heel slides [5,15', of the one frame opening B may be fitted with shaping plates adapted for accommodation of right shoes, whereas the toe and heel slides l5, M, of the other frame opening B may be fitted with shaping plates adapted for the accommodation of left shoes, so that at each operation a complete pair of shoes may be processed.

with the depressions 49 thereof.

of a given size are pro- The removal and change ofthe shaping and pressure plates are exceedingly simple "and may be accomplished in a minimum of time. The toe slides I5 are pulled backwardly in the ways l2 by appropriate manipulation of the screw I9. The pivot screws ll, l1',.are thereupon re moved and the pairs of shaping plates s, s,

respectively slid forwardly along the ways l2 out of the retaining recesses r, 1", of the slides l5, 15. With the shaping plates removed it is possible to reach down into the openings B and lift out the pressure plates 48 which are resting for the accommodation of the particular run of slides 15' are shoes to be manufactured, the

shifted along the ways to a desired position of adjustment relative to the slides l5 for the accommodation of a particular size within the sizerange. flanges of the lasted shoe-uppers are coatedwith a film of suitable adhesive cement and the sole is thereupon applied thereto in simple abutting fashion, forming an incomplete shoe D in which the upper is separated from. the sole at its margin by a peripheral fissured. In this condition, the shoes are conveyed or otherwise brought to the operator for, further processing in accordance with my present invention.

Each pair of such incomplete shoes D is placed, one in the one opening B and the other in the other opening .B upon the upper face of the pressure plates 48 in more or less registration The operator thereupon in quick succession depresses both of the foot levers All by stepping on the pedals 42 and, by sidewise shiftable movement of his foot, locking them' in the detent slots I0. The downward movement of the foot lever swings the diagonal link 39 downwardly, which, in turn, swings the horizontal arm 3'! of the bell crank The outwardly turned or stitch-down 33 outwardly, rotating the bell crank upon the g sition as the slide l5 and its associated shaping plate is moved forwardly.

As the slide l5 and the associated pair of shap- 65 ing plates s approach their forwardmost limit of travel, the outer longitudinal margins of the shaping plates s ride over the fixed cam members m and are accordingly swung inwardly about the pivot screws H for squeezing action around the heel portion of the shoe. This latter movement is necessarily arranged to occur at that moment of time when the mid-point s has just engaged the rearmost portion of the heel of the shoe upper. At this point of time, the shoe will be held tightly between the toe and heel shaping plates-at its toe-tip and heel-tip. The further forward movement of the slide i5 will cause the toe-tip of. the shoe to press forwardly at the mid-point s" of the toe-shaping plates 8', thereby automatically pivoting them about the retaining screws I? for squeezing action around the toe portion of the shoe.

Meanwhile, the pressure plate 48 will have been elevated almost to its uppermost level of movement. At its uppermost level of movement, the pressure plate 48 must be so spaced vertically downwardly from the under face of the shaping plates that the out-turned or stitch-down flange of the shoe upper will be tightly squeezed against the upper face of the shoe sole, as best 'seenin Figure 9. During the few instants of time in which the rising pressure plate 38 is approaching its upper limit of travel, the shaping plates are squeezing inwardly upon the toe and heel portions of the upper. Since the pressure plate and the shaping plates are moving relatively toward each other, the resultant effect of this movementupon the shoe upper is actually to pull the upper downwardly more tightly over the last as the flange thereof is being squeezed against the shoe sole. The heel pressure plates 8, having reached their forward limit of travel, will normally come to rest and the vertical arm 36 of the bell crank 33 will continue its forward motion against the bias of the spring pressed plate 26, whereby to permit a further final upward movement of the pressure plate to insure compressive deformation of the shoe sole between the downwardly presented face of the shoe last and the depression 49 in the upwardly presented face of the pressure plate 48.

As this series of operations is completed, the foot lever all is locked in downwardly disposed position in the detent slot Ill and the shoe is held in vise-like grip of the machine for any desired interval of time to allow the cement to harden or set. While this is taking place, the other shoe of the pair being similarly shaped and formed by the depression of the companion foot lever 48, which, sets in motion a similar and identical series of movements in the manner above described.

By the use of any one of a number of highly satisfactory quick-setting cements available to the shoe industry, it becomes unnecessary to retain the shoes in gripped position within the machine for a very long space of time. In fact, it has been found that the first shoe operated upon will be thoroughly set and may be released from the machine by the time the second shoe of the pair has been shaped and completed by the compression of the second foot lever iii! and it has been further found that, while the first shoe is being released and removed from the machine, the setting of the cement in the second shoe Will be completed, so that, by the time the first shoe is removed, the removal of the second shoe may also be started.

The removal of the shoes is accomplished by simply shifting the foot lever till out of the detent slot iii and allowing it to be pulled upwardly to initial position under the influence of the spring 653. As the lever moves upwardly, the horizontal arm 3'6 of the bell crank 33 will be swung upwardly, reversely rotating the bell crank and shifting the vertical. arm backwardly, withdrawing .the slide is? and its associated shaping plates, s, s, and simultaneously lowering the pressure plates to initial position, whereupon the shoe may be lifted out of the machine and is ready for final stitchdown operations by which the upper and sole are secured together by either a single or double line of stitches and either with or without the welt strip 11), as may be desired and as best seen in Figure 10.

In the preferred embodiment above discussed, I have found it desirable to form the slides l5, l5, and the associated pairs of toe and heelshaping plates s, s, of such length that they will not entirely embrace the shoe when in operative engagement therewith but will be separated at their opposed transverse margins by a substantial distance on either side of the shoe in the region of the instep or arch thereof, as best seen in Figure 9. It is, of course, possible to provide slides and shaping plates of such size and form that they will actually meet and entirely embrace the shoe. This, however, would make necessary a change of shaping plates for each change in size or shape of the shoe itself and would materially limit the flexibility of the machine. As was above pointed out, three different sets of shaping plates may be satisfactorily utilized to cover a broad range of sizes by reason of the fact that the slides 55' and the toe-shaping plates associated therewith may be shifted forwardly and rearwardly in the slides to varying positions of adjustment with respect to the slides i5 and the heel-shaping plates 5 by means of manipulation of the adjustment screws it. Under these latter conditions, I have found that it is desirable to finish off the shoe once it has been gripped in the machine by manually pressing the unembraced instep portions of the stitch-down flange by use of a roweling tool or other suitable instrument. It is also possible to accomplish this result by suitable machinery, which forms the sub ject-matter of a separate application for Letters Patent of the United States presently to be filed by me.

In some cases, it may be desirable to reverse the toe plates and heel plates, so that the toe plates 8' are mounted in the slide l5 and the heel plates 8 are mounted in the slide IS, in which case the toe plates Will be moved into the toe of the shoe for lasting operation. This has been found desirable in the case of lasts of certain types and shapes, but is clearly within the scope of the present invention, being a mere reversal of parts.

By my present invention, I have thus provided a means and method for attaching uppers and soles of shoes of the type stated, which is exceedingly simple, efficient, and speedy and which actually brings the shoe upper and sole into much more close fitting abutment. In fact, by my present invention, it is actually possible to complete the lasting of the'shoe by pulling the shoe upper more tightly over the last as it is brought into sol'e engagement. It is furthermore possible by my present invention to provide a sharper. more acute-angled marginal recess between. the upwardly curving outer face of the upper and the fiat upwardly presented face of the out-turned or stitch-down flange, as at o in Figure 10, so that the welting strip to may actually be forced tightly thereinto in the formation of a very close fitting structure having exceptionally desirable wearing qualitities. i

It should be understood that changes and modifications in the form, construction, arrangement, method, and combination of the several parts of the shoe-forming machine may be made and substituted for those herein shown and described without departing from the nature and principle of my invention.

Having thus described my invention, what I I claim anddesire to secure by Letters Patent is,

1. A shoe-forming machine comprising a base, vertically shiftable means on the base for supporting the sole of a shoe, a pair of companion shaped slid-es mounted on the base for horizontally shiftable movement, and co-operative means freely pivoted on each of the slides for shiftable vmovement therewith for compressively superposing the lower margins of the shoe upper upon the sole. i

2. A shoe-forming machine comprising a base,

vertically shiftable means on the base for supporting the sole of a shoe,,a pair of companionshaped slides mounted on the base for horizontally shiftable movement, and co-operative means freely pivoted on each of the slides for shiftable movement therewith and being relatively swingable toward and away from each other for compressively superposing the lower margins of the shoe upper upon the sole.

3. A shoe-forming machine comprising a base, vertically shiftable means on the base for supporting the sole of a shoe, a pair of companionshaped slides mounted on the base for horizontally shiftable movement, co-operative means freely pivoted ,on each of the slides for shiftable movement therewith and being relatively swingable toward and away from each other for compressively superposing the lower margins of the shoe upper upon the sole, and driving means for simultaneously moving the slides, and the solesupporting means relatively toward each other.

5. A shoe-forming machine comprising a base, vertically shiftable means on thebase for supporting the sole of a shoe, a pair of companionshaped slides mounted on the base for horizontally shiftable movement, co-operative means freely pivoted on each of the slides for shiftable movement therewith and being relativelyswingable toward and away from each other for compressively superposing the lower margins of the shoe upper upon the sole, and driving means for simultaneously moving the slides relatively toward each other and the sole-supporting means relatively toward th slides.

6. A shoe-forming machine for attaching uppers to soles comprising a base having a pair of parallel ways, a pair of slides mounted for shiftable movernent toward and away from each other in the ways, each of said slides being provided a depression contoured for conformationto the desired shape of shoe. 1

'7. A shoe-forming machine for attaching uppers to soles comprising a base having a pair of opposed parallel, horizontal ways, a pair of slides mounted for shiftable movement toward and away from each other in the ways, a plate mount ed in subjacently spaced juxtaposition with the slides for bodily shiftable movement toward and away from the slides, and means f or simultane-' ously moving the slides relatively toward each the sole-bottom in the finished,

other and shifting the plate bodily toward the slides initially at a relatively rapid rate of speed and finally at a relatively slow rate of speed;

8. In a device of the character described, in sub-combination, a shiftable slide having a pair of companion-shaped fiat shoe-shaping plates contoured for embracing engagement with a selected portion of a shoe, said plates being pivotally mounted in the slides for free-swinging movement about fixed points spaced substantially from, and respectively on opposite sides of, the longitudinal center line of said slide and being adapted for initial engagement with the shoe at a selected point as the plates and the shoe relatively approach each other during shaping operation whereby to cause automatic inwardly swinging movement of the plates upon further relativ approach of the shoe for exerting squeezing pressure on the shoe.

9. A shoe-forming machine comprising a base, a first slide-member shiftably mounted on the base, a second slide-member shiftably mounted on the base for movement toward and away from the first slide-member, each of said slide-members being provided with wiper plates respectively contoured for embracing engagement with opposed portions of a shoe-upper in the region ofthe sole-engaging margin thereof, 'a sole-engaging plate shiftably mounted in the base for bodily movement toward and away from said slidemembers, means co-operable with the first slidebers being provided with wiper plates respectively contoured for embracing engagement with opposed portions of a shoe-upper in the region of the sole-engaging margin thereof, a sole-engag ing plate shiftably mounted in the base for bodily movement toward and away from said slidemembers, means co-operable with the first slidemember for adjustably setting said slide-memher at any selected position with respect to the base, means for simultaneously shifting the second slide-member and the sole-engaging plate toward the first slide-member and means for locking the second slide-member and sole-engaging plate in position at the furthermost limits of their travel toward the first slide-member.

11. A shoe-forming machine comprising a base having a pair of opposed parallel slide-ways, a first slide-member shiftably mounted in the ways, a setting-member operably connected to the first slide-member and threadedly mounted in the base for shifting the first slide-member to any selected position of adjustment along the Ways and holding said slide-member at such selected position, a second slide-member shiftably mounted in the ways for movement toward and away from the first slide-member, a bellcrank swingably mounted in the base and being connected at one end to said second'slide-member, means operably connected to the bell-crank for producing rocking movement thereof whereby to shift the second slide-member along the ways, Wiper means removably mounted in each of the slide-members, said Wiper means being complementarily contoured respectively for embracingly engaging the opposed portions of a shoe-upper in the region of the sole-engaging margin thereof, a sole-engaging plate mounted for shiftable movement toward and away from the plane of the slide-ways, a pair of rotatable cam-members operatively engageable with the plate for bodily shifting the plate toward and away from the plane of the slide-Ways, a link operably connecting said cams for simultaneous movement, and means connecting said cams to the hell-crank for producing sole-plate shifting movement thereof simultaneously with slideshifting movement of the bell-crank.

OTTO ANTHONY DEHNE.

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