US2673993A - Lasting machine - Google Patents

Description

M. CUOZZO LASTING MACHINE April 6, 1954 4 Shets-Sheet 1 Filed May 7, 1949 :IXIIIIIIH Mac/@666 Caz; 0 M

. fwyezmfai" Aft a April 6, 1954 M. cuozzo 2,673,993 LASTING MACHINE Filed May 7, 1949 4 Sheets-Sheet 2 HIIIIIIHIIII'IM 1 III [mvermfor Mc/'ele 611/2; 0

April 6, 1954 M. cuozzo 2,673,993

LASTING MACHINE Filed May 7, 1949 4 Sheets-Sheet 5 12/ mil April 6, 1954 M. cuozzo 2,673,993

LASTING MACHINE Filed May '7, 1949 4 Sheets-Sheet 4 AMI/l e" [mdermlor Michele 6140 a ,chine. of

.be varied during means whereby a to Fig.1

Patented Apr. 6, 1954 UNITED STATES F' -LCE 2,673,993 LASTING MACHINE Michele Guozzo, Lynn, Mass. -Application;May 7, 1949, Serial No. 91,919 (o1. 12-s;3)

27 Claims. 1

This invention pertains to shoelasting machines of the continuous or. progressive type wherein the lasting margin of .the upper is gripped between opposed parts, one at least of which is ,a constantly rotatin .roll, while it is subjected to the lasting stress. vOne object of .the presentinventionis to provide alasting mathe continuous type which is capable. of applying a more powerful updrafting stress than it is possibleto obtain bythe use of some of the prior machines of this type. A further object is .to provide a lasting machineof the continuous type wherein the degree of up-drafting stress may thelasting. operation at the will of the operator.

a lasting, machine of thecontinuous typehaving substantially uniform lasting stress may beapplied to thelasting margin. A

furtherobject is to provide a lasting machine of the continuous type having-provisionfor rough-- ening the exposedsurface of the lasting-margin as it iswiped in over the shoe bottom. ;A further object is.to provide a lasting machine comprising a minimum number ofparts; which is of simple and inexpensive construction; whichnis of small dimensions. and light in weight; and which is ruggeddurable and easy ,to operate. Other and further objects and advantagesof thelinvention will be pointed .out in thefollowingmore detailed description and by referencetothe accompanying drawings wherein:

Fig. 1 is aside elevation of alasting machine in accordance with one embodiment of the invention;

Fig. 2 is a fragmentary horizontal section, to

larger scale-substantially on ,the 1ine. 22 of Fig. 3 is a front elevation, viewed from theleft- {hand side of Fig. l,.of. the uppergripping and wiping means the, other partsflbeingtomitted;

I Fig. 4,is. =a fragmentary side elevationsimilar :but showing therear end only of the machine and illustrating a slight. modification;

Fig. 5; is a view similar ;to Fig. 4,. showing a further modification;

Figafiis a fragmentary, section on thesame .plane as Fig- 2. but, illustrating aslight modification, wherein provision ismadefor roughening the lasting margin;

Fig; 7 is an elevation, looking from the left- -hand side of Fig. 6;

"Fig. 8 is a plan view'of the device shown-in Fig. 19 is a. diagrammatic vertical sectionrsub- A further object is to provide to largerscale, showing. the relation of the winins elements to the lasting margin of th shoe during the lasting. operation;

.Fig.,10.is a fragmentarysection on the line I ll-,l 0 of Fig-2, omitting the work-gripping eleg,ments..and,.showingthesupport for the inner Work-grippingroll;

Fig. 11 isa diagrammatic front. elevation showinga shoe in the position in which it is held during the lasting operation;

Fig. .12 is a diagrammatic plan .viewof the parts shown in Fig. 11, and illustratingthe action of the machine in stressing theuppermaterial;

.Fig. 13 is a fragmentary ,horizontal section showing a slight modification;

Fig. 14 is a view similanto Fig-6, illustrating a modified form of wiper; and

Fig. 15 is aview similar to Fig. 14 but showing another modification.

Referringto the drawingsthe numeral I designates a bench, or other suitablesupport upon which theframe of the machine may be mounted. As shown in Fig. l, the frame of themachine comprises a base [from which rises theupright post or column 3, carrying thelower member of a I bearing which also comprises the upper or cap member 5 secured to the part .4 by belts or the like. This bearing, comprising .thepartsj and 5,,houses a sleeve or bushing, 6. (Fig. 2) .within which turns thehorizontal tubular shaft 1.

As illustrated in Fig. 2,the.left-hand.end ofv the shaft 1 projects beyond ,the bearing andis -received in an axial bore .inan elongate hub..9 which is keyed, asindicated at"), to theshaft i, or otherwise fixed tothe shaft. Alternatively, the shaft 7 andhub 9 maybeintegrally.joined. At its leftehand end the part 9 has a radial flange l2 and a centrally locatedchamber ll. The

flangelZ :has-an annular internal channel J3 The shaft -7 (Fig. 1) projectsto v yond thebearing comprisingthe partstd andsi and to ,thisportionof the shaft thereis fixed the hub l6 of adrivepulley |1,.;;designed;toreceive a belt driven, ;-f,or example, by an electrical motor (not shown).

The-bore in the shaft 1 is,-providedw ith ;a lining sleeve or pushing [8 (Fig.2) v-in ;',WhiCh= iS arranged can axially slidableshaft ,or .rod 1:19. This. rod [9. projects to; the right (F-ig; 1) -;beyond the pulley I l and slidesin; bearings intends th i ht. he-

provided by a U-shaped frame member 22 which is secured to the bench or table I. If desired, the parts 2 and 22 may be integrally joined. Moreover, if desired, these parts 2 and 22, whether separate or integral, may be mounted upon a suitable base or column, forming a part of the machine structure itself.

Any suitable means may be provided to prevent rotation of the shaft I9, but, as here illustrated, merely by way of example, the right-hand end of the shaft is provided with a collar 23 secured to the shaft by a set screw, or the like, and having a rigid pin 2 1 which extends through and is slidable in an opening in the frame member 22. With this arrangement, by loosening the collar 23, it is possible to turn the shaft Is by hand for adjusting its angular position. However, the shaft I9 is normally held against rotation, although it may slide axially relatively to the shaft 1.

A spring 24 surrounds the shaft I9, bearing at one end against the part 22 and at its other against a collar 25 which is pinned to the shaft I9 and which has a peripheral groove which receives opposed pins 25 projecting from a forked arm 21 of a bell-crank lever pivoted at 28 in a bracket 29 projecting from the part 22. This bell-crank has another arm 30 which is connected by a rod 3| and other suitable connections (not shown) to a treadle. The spring 24 normally urges the rod 19 rearwardly with a force depending upon the strength of the spring 24, but by actuation of the treadle, the rod It may be moved forwardly relatively to the shaft 1.

The shaft or rod I9 projects into the chamber I I (Fig. 2), as indicated at I9, and is provided at its left-hand end with a fixed stub shaft or pin 32 (Fig. 10) whose axis makes an acute angle G, which may for example be approximately 45, with the axis of the rod I3. This stub shaft or pin 32 may be secured to the shaft I9 in any suitable manner, for example, by a screw-thread connection, by welding, or the like, and its free end is provided with a button 33 preferably having a spherically curved outer surface which is designed to engage the shoe bottom (usually the insole) and to act as a hold-down or limiting element to oppose the updraft which is applied to the lasting margin of the upper.

The stub shaft 32 (Fig. 2) is provided with a bearing bushing 34 of suitable material, for example, bronze, and on this bushing turns the hub 35 of a beveled pinion 36, of such pitch that its teeth may mesh with the teeth of the internal bevel gear I4, the pitch angle being approximately the same as the angle G above referred to. The diameter of the pinion, as here shown, is approximately one-half that of the annular gear It. The head or button 33 on the stub shaft retains this pinion in proper operative position on shaft 32.

Preferably, the outer radial face of the flange member I2 is provided with a series of projecting bosses 31 (Fig. 3), here shown as substantially hemispherical, and which form the heads of pins 310 (Fig. 2) which extend through openings in the flange I2- and are fixed therein, for example by screw threading, welding or the like.

The operation of the machine (Figs. 2, 11, 12 and 13), as thus far described, is substantially as follows, assuming that a shoe upper U, having a lasting margin M, has been assembled with an insole S upon the last L and that the pulley I1 is being driven from a suitable source of power. The operator first depresses the treadle, thereby pushing the rod I9 forwardly so as to separate the retract, is wiped in over teeth of the pinion 36 from the teeth of the gear I4. He then presents the shoe (Fig. 13) to the machine so that the insole contacts the curved surface of the button 33 and introduces the lasting margin between the toothed rolls l4 and 33. He then removes his foot from the treadle, allowing the spring 24 to urge the rod I 9 and the pinion 3'6 rearwardly. The internal gear It now grips the lasting margin between it and the pinion 36 and, as the gear I4 turns, the rotary parts I4 and 3t exert a force substantially in the axial direction, as referred to the shaft I9, which produces a powerful updrafting effect on the lasting margin, drawing it snugly about the last. The strong tension exerted on the upper material by the toothed rolls I4 and 38 is clearly evident by visual observation of the upper material at the point P (Fig. 12), the effect apparently being somewhat similar to that obtained by the hand laster when he seizes the upper with hand pincers and applies twisting force to the pincer handles. During the lasting operation the lasting margin is drawn or wrapped about the periphery of the pinion 36 by the action of the internal gear I4, and subjected to a very strong pull such that the upper is drawn into a deep wrinkle P, indicative of the powerful stress which is applied. At the same time, the shoe is fed forwardly by the action of the rotating pinion and gear. As the lasting margin, after being stressed by the interaction of the gear and pinion, escapes from between the gear and pinion at the point E (Figs. 11 and 12), it is engaged by the bosses 31 on the downwardly moving portion of the flange I2 and, before it can the bottom of the insole. has been applied, either the insole, or both, this Assuming that adhesive to the lasting margin or operation wipes in and causes the lasting margin to adhere firmly to the insole. The operation is continued throughout such portions of the periphery of the shoe as are to be lasted by this particular machine. This may include the entire periphery of the shoe, the forepart and toe portions only, or only the parts comprised in what is known as the side lasting operation.

Instead of the rounded bosses 31 on the flange I2, an arrangement such as shown in Figs. 6 to 8 may be employed. In this arrangement, the part corresponds to the part 9, previously described, and the part I20 to the flange I2, previously described. However, in this instance, the left-hand face of the flange I20 is formed by an independent ring I2I secured in place by screws I22 and having on its exposed radial face a series of teeth I23 designed, as they engage the lasting margin, during the wiping operation, to abrade or roughen its surface so as to prepare it for the reception of cement for use in attaching the outer sole.

In a. similar way (Fig. 14) instead of the ring I2I, with its roughing teeth I23, a ring I3I carrying rotatable ball bearings I33 may be secured to the flange I20, thus providing somewhat the same effect as the bosses 31, but causing less roughing or injury to the surface of the lasting margin.

Instead of having the spring 24 arranged to exert a rearward force for drawing the pinion 36 toward the gear, the reverse arrangement may be employed, as shown in Fig. 5, wherein the spring I24 is arranged to urge the shaft I9 forwardly so as to separate the pinion and gear. In this case, the pinion is moved toward the gear by the action of the treadle so that the operator may determine the pressure between the gear and pinion and" I thus* vary the .1 degree: :of stretch 1 impartedto the lasting margin.

wA further alternative is illustrated in Fig. :4 wherein the spring is arranged to urge the :rod I 9 forwardlyso as to separate the pinion and gear, but Withno provision for movingthe pinion toward the gear, except by the :pressureof .the work against the button 733.

The rolls [4 and 3t may, as here illustrated, be actual gears'suchas are used'in power transmission. However, theteeth need notbeof the exact shape requisite .in true gear "teeth," but: may merely be ribs of any desired shape such as to provide agood grip; and even'rolls;whetherxor not provided with knurled peripheral surfaces, if complementally beveled and .relativelyzarranged like the rolls 1'4 and 13.6,are' also capable ofgiving good results, at least'upon: some classes of work, and when the parts In and 3B .are :here referred to for convenience as gears, the term gear:is to be considered .as inclusiveof variations, 1 as just suggested by way of .example.

In Fig. '13 a slight-modificationis'shown wherein the axis of the pinion 36 is parallel with but eccentric to theaxis ofthe gear 14.

In Fig. 15 a further modification is illustrated wherein the flange I2 of the-part 9 isprovided with circumferentially .spaced sockets M which house coiled compression springs Ml Whose forward ends engage the inner faces of sliding plugs I42 having spherically curved outer ends 143 which function like the parts '37 and I33, above referred to.

While desirable embodiments of the invention have herein been illustrated and described by way of exampleand certain modifications suggestedyit is to be understood that'the'invention is broadly inclusive of any and all further modifications and rearrangementsof parts which fall within the terms of the appended claims.

Iclaim:

1. In combination'in a'lasting machine, a support, a hold-down device carriedby the support, a-rotatable roll mounted on'the support, said roll having a beveled peripheral surface, wiping means movable in a plane which intersects'the axis of the roll at an acute angle, means-operative .par-

tiallyto wrap the lasting margin of a shoe upper about the beveled surface of the roll while uninterruptedly advancing the Work, and means ,operative simultaneously xto actuate the wiping means andthe wrapping means.

2. In combinationin a lastingmachinaasupport, a'hold-down device carried .by'the support, arotatable roll-mounted on thefsupp'ort, said roll having a beveled peripheral surface,wiping means movable in a circular path lying' in a planeiwhich intersectsthe axis of the roll at an acute angle, a-rotatable annulus coaxial withthe path-of the wiping means, constructed and arranged-to grip alasting margin between it and the roll, and concomitantly to-feed the work along, and means operative simultaneously to rotate the annulus and to move the wiping means.

3. In combination in a lasting machine, a support, a hold-down device carried'by the support, a rotatable roll mo'untedon the support, said roll having a beveled peripheral surface, wiping means movable'in a circular pathlying in a plane whichintersects the axis'of the roll :atanacute angle and a rotatableannulus coaxial with the path of the wiping means, said annulus having a beveled inner surface provided with" work-engaging'ribspsaid annulusbeing operative-to grip a lasting margin "between its beveled surface and margin inwardly as the rotating it, said the annulus thereby rotating it, saidannulus having a toothed surface at its inner periphery,an abutment element arranged within the V annulus, the abutment element being eccentrically located relatively to the annulus and being bodily movable in a direction parallel to the axis of the annulus, thereby to permit the entry of the lasting margin of the shoe upper between the abutment and the toothed surface of the annulus, and wiper elements-carried by the annulus operative'to wipe the lasting marginescapes from between the annulus and abutment.

5. Shoe-lasting apparatus .forupdrafting and inwiping the lasting margin of a shoe uppensaid apparatus comprising an. annulus and-means for rotating it, saidannulus having a toothed surface at its inner periphery, an abutment element arranged within theannulus, the abutment element being eccentricallylocated relatively'torthe annulus and being bodilymovable relativelycto the annulus away from the toothed surfaceiiof the annulus thereby to'permit the entry of the lasting margin-ofthe shoe upper betweenithe abutment and the toothed surface of the annulus, and means carried by .theannulus operativeto wipe in and to roughen the lasting margin-as the latter escapes from-between the abutment and annulus.

6. Shoe lasting apparatus for updrafting and inwiping the lasting margin of a shoe upper, said apparatus comprising an annulus 'and'means for annulus having a toothed surface at its inner periphery, anvabutment element arranged withinthe annulus, the abutment element being eccentrically located relatively to V the annulus and being bodily movable relatively to the annulus away fromxthe toothed surface of the annulus therebyto permit the entry of the lasting margin of the shoe upper between-the abutment and the toothed surface of the annulus, a ring removably secured to the forward face of the annulus, and wiper elements-carried by the ring.

7.'Shoe lasting apparatus for updrafting and inwiping the lasting margin of a-shoe upper, said apparatus comprising an annulus and means for rotating'lt, said annulus having a toothed surface at itsinner periphery, an abutment element arranged within the annulus, the. abutment element being eccentricallylocated relatively to the annulus and being'bodily movable relatively to the annulus in a direction parallel to the axis of to permit the entry ofthe lasting margin of the shoe upper between the abutment and the toothed surface of the annulus, a ring removablysecured to the forward face of the annulus, and work-roughening elements carried bythe ring.

8. Shoe lasting apparatus 'for updrafting and inwiping the lastingmargin of a shoe upper, said apparatus comprising a rotary carrier, an internal bevel gear mounted on the carrier, means for rotating the carrier, a beveled pinion, of a diameter approximately onei-half'that ofsthe gear, arranged within'the gear, a normallyfixed shaft supporting the pinion, a hold-down element carried by said shaft and engageable with the shoe bottom, andawiperelements mounted on thecarrier.

shoe lasting apparatus for updrafting and inwiping the lasting margin of a shoe upper, said apparatus comprising a rotary carrier, an internal bevel gear mounted on the carrier, means for rotating the carrier, a beveled pinion, of a diameter approximately one-half that of the gear, arranged within the gear, a normally fixed shaft supporting the pinion, a hold-down element carried by said shaft and engageable with the shoe bottom, and combined wiping and roughening elements mounted on the carrier.

10. Shoe lasting apparatus for updrafting and inwiping the lasting margin of a shoe upper, said apparatus comprising a rotary carrier, an internally ribbed annulus mounted on the carrier, means for rotating the carrier, a beveled toothed roll. of a diameter approximately one-half that of the annulus, arranged within the annulus, a normally fixed shaft supporting the roll, a holddown element supported by said shaft and engageable with the shoe bottom, and a series of smoothly rounded knobs projecting from the carrier and constituting wiping elements.

11. Shoe lasting apparatus for updrafting and inwiping the lasting margin of a shoe upper, said apparatus comprising a rotary carrier, an internally beveled annulus mounted. on the carrier, means for rotating the carrier, a beveled roll, of a diameter approximately one-half that of the annulus, arranged within the annulus, a normally fixed shaft supporting the roll, a holddown element supported by said shaft and engageable with the shoe bottom, and a series of workroughening teeth projecting from the carrier and operative to wipe in and roughen the marginal material.

12. In a shoe lasting machine, in combination, a frame, and means supported thereby for gripping and updrafting the lasting margin of a shoe upper, said gripping means comprising an annulus having a beveled inner peripheral surface, work-gripping elements on said surface, a rotary abutment disposed within said annulus and lo cated eccentrically with relation t the annulus. said abutment having a beveled peripheral surface complemental to the beveled surface of the annulus, the abutment being bodily movable to ward the beveled surface of the annulus, thereby to grip the lasting margin between the beveled surfaces of the abutment and annulus, means for rotating the annulus, a holddown device engageable with the shoe bottom to oppose stress exerted by the gripping means, a normally stationary element, carried by the frame, on which the hold-down device is mounted, and wiping means operative to engage and to wipe in the margin as it escapes from between the abutment and annulus.

13. In a shoe lasting machine, in combination, means for gripping and updrafting th lasting margin of a shoe upper, said gripping means comprising an annulus having a beveled inner peripheral surface, work-gripping elements on said surface, a normally stationary support arranged within the annulus, a shaft carried by the support, a rotary abutment roll free to turn on said shaft, said roll having a beveled peripheral surface complemental to that of the annulus, a holddown element mounted on the end of said shaft and engageable with the shoe bottom to oppose the drafting stress exerted by the gripping elements, and wiping means carried by the annulus.

14. In a shoe lasting machine, in combination, means for gripping and updrafting the lasting margin of a shoe upper, said gripping means com prising an annulus having a beveled inner peripheral work gripping surface, an axially movable, normally stationary rod coaxial with the annulus, a stub shaft arranged within the annulus and supported by the rod, the axis of said shaft being inclined to the axis of the annulus at substantially the same angle that the beveled surface of the annulus makes with the axis of the latter, said stub shaft having a head at its forward end constituting a work hold-down, a freely rotatable roll mounted on th stub shaft, said roll having a beveled work-gripping face complemental to that of the annulus, means for rotating the annulus, and means mounted on the forward radial face of the annulus for wiping in the lasting margin a the latter escapes from between the beveled surfaces of the annulus and roll.

15. In a shoe lasting machine, in combination, means for gripping and updrafting the lasting margin of a shoe upper, said gripping means comprising an annulus having a beveled inner peripheral surface, an axially movable, normally nonrotatable rod coaxial with the annulus, a stub shaft fixed at one end to the forward end of the rod, the axis of the stub shaft being inclined relatively to the axis of the annulus, a hold-down device carried by said stub shaft at its free end, a roll mounted on the stub shaft, said roll having a beveled peripheral face complemental to the beveled face of the annulus, each of said beveled faces having work-gripping ribs, means for rotating the annulus, means for moving the rod axially, thereby to urge the beveled face of the roll toward that of the annulus, and a series of projections on the forward radial face of the annulus operative to engage and to wipe in the lasting margin a the latter escapes from between the gripping elements.

16. In a shoe lasting machine, in combination, means for gripping and updrafting the lasting margin of a shoe upper, said gripping means comprising an annulus having a beveled inner peripheral Work-gripping surface, an axially movable, normally nonrotatable rod coaxial with the annulus, a stub shaft fixed at one end to the forward end of the rod, the axis of the stub shaft being inclined relatively to the axis of the annulus, a hold-down device carried by said stub shaft at its free end, a roll mounted on the stub shaft, said roll having a beveled peripheral work-gripping face complemental to the beveled face of the annulus, said beveled faces gripping the work between them, means for rotating the annulus, a spring which constantly tends to move said rod in one direction, manually actuable means for moving the rod in the opposite direction, and wiping means carried by the annulus.

17. In a shoe lasting machine, in combination, means for gripping and updrafting the lasting margin of a shoe upper, said gripping means comprising an annulus having a beveled inner peripheral surface, an axially movable, normally nonrotatable rod coaxial with the annulus, a stub shaft fixed at one end to the forward end of the rod, the axis of the stub shaft being inclined relatively to the axis of the annulus, a hold-down device carried by said stub shaft at its free end, a roll mounted on the stub shaft, said roll having a beveled peripheral face complemental to the beveled face of the annulus, each of said beveled faces having work-gripping ribs, means for rotating the annulus, a spring which constantly tends to move the rod rearwardly, thereby to urge the beveled face of the roll toward the beveled face of the annulus, treadle-actuated .9. means for-moving the rod forwardly; thereby to separate the roll and'a'nnulus; and a series of work engaging projections on theforwardradial face ofthe annulus".

l8. Inashoe'l'asting machine, in combination, meansfor gripping and updraftingthe lasting margin of a' shoe upper, said gripping means comprising an annulus having a beveled inner peripheral surface, an axially movable, normally nonrotat'abl'e rod coaxialwitlrthe annulus, a' stub shaft fixed at oneiendito the forwardi end of the rod, the axis of the stub shaft being inclined relatively to the axis of the annulus, a hold-down device carried by said stub shaft at its free end, a roll mounted on the stub shaft, said roll having a beveled peripheral face complemental to the beveled face of the annulus, each of sai beveled faces having thereon work-gripping elements, means for rotating the annulus, a spring which constantly tends to move the rod forwardly, thereby to separate the beveled faces of the roll and annulus, means whereby the rod may be moved rearwardly, and wiper means carried by the annulus.

19. In a shoe lasting machine, in combination, means for gripping and updrafting the lasting margin of a shoe upper, said gripping means comprising an annulus having a beveled inner peripheral work-gripping surface, an axially movable, normally nonrotatable rod coaxial with the annulus, a stub shaft fixed at one end to the forward end of the rod, the axis of the stub shaft being inclined relatively to the axis of the annulus, a hold-down device carried. by said stub shaft at its free end, a roll mounted on the stub shaft, said roll having a beveled peripheral workgripping face complemental to the beveled face of the annulus, said beveled faces gripping the work between them, means for rotating the annulus, a spring which constantly tends to move the rod forwardly, thereby to separate the beveled face of the roll from that of the annulus, and treadle-actuated means for moving the rod rearwardly thereby to grip the lasting margin between the roll and annulus.

20. Shoe lasting apparatus including a frame, and upper stressing means carried thereby including a pair of normally meshing, toothed, upper gripping elements arranged to turn about intersect at an acute angle, one of said elements being an internal beveled gear and the other being a beveled pinion, means for turnelements, means for urging said elements toward each other, thereby to grip the lasting margin between their toothed faces, said gripping elements being operative to exert updrafting stress on the lasting margin gripped between them, limiting means operative, by engagement with the insole, to limit movement of the insole and last in the direction of said updrafting stress, and a normally stationary part carried by the frame constituting the support for said limiting means. pr

21. Shoe lasting apparatus comprising upper stretching and work-feeding means designed to grip the lasting margin of the shoe upper and concomitantly to exert updrafting stress and work-feeding stress, said stretching and feeding means comprising a pair of toothed, rotatable gripper elements capable of relative bodily movement to admit the lasting margin between them, means for relatively moving said elements toward each other, one of said elements being an internally beveled toothed annulus and the other a beveled toothed roll arranged within and in eccentric relation to the annulus, means for turning the annulus, and wiping means movable in a path coaxial with-the annulus.

22: Shoe lasting apparatus comprising upper stretching and work-feeding means designed to grip thelasting margin of the shoe upper and concomitantly to exert updrafting stress and work-feeding stress, said stretching and feeding means comprising a pair of work-gripping elements capable of relative bodily movement to admit the lasting margin between them, means for relatively moving the gripping elements toward each other, one at least of said elements being rotatable, a wiper element which is movable in a circular path coaxial with said rotary gripping element and means operative simultaneously to turn said rotary gripping element and the wiper element continuously in the same direction.

23. Shoe lasting apparatus comprising upper stretching and work-feeding means designed to grip the lasting margin of the shoe upper and concomitantly to exert updrafting stress and work-feeding stress, said stretching and feeding means comprising a pair of work-gripping elements capable of relative bodily movement to admit the lasting margin between them, means for relatively moving the gripping elements toward each other, one at least of said elements being rotatable, an annular wiper element coaxial with said rotary gripping element and whose path of movement is in a plane perpendicular to the axis of the said rotary gripping element and means operative simultaneously to turn said gripping element and the wiper element continuoutly in the same direction.

24. Shoe lasting apparatus comprising upper stretching and Work-feeding means designed to grip the lasting margin of the shoe upper and concomitantly to exert updrafting stress and work-feeding stress, said stretching and feeding means comprising a pair of rotatable elements capable of relative bodily movement to admit the lasting margin between them, said elements being rotatable about axes which intersect at an angle of approximately 45, means for rotating one at least of said elements continuously in the same direction, and wiping means movable in an annular path coaxial with one of said rotatable elements.

25. Shoe lasting apparatus comprising upper stretching and work-feeding means designed to grip the lasting margin of the shoe upper and concomitantly to exert updrafting stress and work-feeding stress, said stretching and feeding means comprising a pair of rotatable gripper elements having opposed beveled faces, said elements being so supported that one may be moved away from the other to admit the lasting margin between them, means for moving them toward each other to grip the margin between them, a wiper element, and means for moving the wiper element in a path coaxial with one of said gripper elements.

26. In combination in a lasting machine of the continuous type comprising a pair of cooperable work-gripping elements of which one, at least, is rotatable, said elements being bodily separable to admit the lasting margin of the shoe upper between them, means for urging said elements relatively toward each other to grip the lasting margin between them, means operative to rotate at least one of said gripping elements, a wiper element which is movable in a closed path, the point at which the lasting margin is gripped between the gripping elements being located within the confines of said path, and means operative simultaneously to turn the rotary gripping element and to move the wiper element always in the same direction along said path.

2'7. In combination in a lasting machine of the continuous type comprising a pair of cooperable work-gripping elements of which one, at least, is rotatable, said elements being bodily separable to admit the lasting margin of the shoe upper between them, means for urging said elements relatively toward each other to grip the lasting margin between them, means operative to rotate at least one of said gripping elements,

a wiper element movable in a circular path, the point at which the margin is gripped between the gripper elements being within and eccentrically located with respect to the path of the wiper element and means operative simultaneously to turn said rotary gripping element and to move the wiper element always in the same direction along said circular path.

References Cited in the flle of this patent UNITED STATES PATENTS Number

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