US2503166A

US2503166A - Shoe machine

Info

Publication number: US2503166A
Application number: US734158A
Authority: US
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1947-03-12
Filing date: 1947-03-12
Publication date: 1950-04-04
Anticipated expiration: 1967-04-04

Description

A. R. MORRILL April 4, 1950 sHoE MACHINE A '7 Sheets-Sheet l Filed March-12, 1947 l I l TIII A. R. MORRILL pril 4, 1950 SHOE MACHINE 7 Sheecs-Sheei'I 2 Filed March l2, 1947 A. R. MORRILL April 4, 1950 SHOE MACHINE 7 Sheets-Sheet 5 F'iled March l2, 1947 April 4, 1950 SHOE MACHINE 7 Sheets-Sheet 4 Filed March l2, 1947 A. R. MORRILL April 4, 1950 SHOE MACHINE 7 Sheets-Sheet 5 Filed March l2, 1947 mmf Umar fw April 4, 1950 A. R. MORRILL 2,503,166

" SHOE MACHINE Filed March 12, 1947 7 sheets-sheet e Magn? me/705277 A. R. MORRILL April 4, 1950 SHOE MACHINE Filed March l2, 1947.

'7 Sheets-Sheet 7 Patented Apr, 4, 1950 SHOE MACHINE Alfred lR. Morrill, deceased, late of Woodstock,

Vt., by Ruth W. Morrill, administratrix, Woodstock, Vt., assignor to United Shoe Machinery Corporation, Flemington, N. J., a corporation of New Jersey Application Marcniz, 1947, serial No. 734,158

22 Claims.

The present invention relates to machines for the manufacture of shoes, and more particularly to improvements in the shoe supporting, shoe feeding and shoe controlling means of automatic machines of the general'type illustrated in the patents to Morrill No. 2,359,664, dated October 3, 1944, and No. 2,323,346', dated July 6, 1943.

In machines of the general type referred to, and as shown in the appended drawings, an automatic shoe support is provided which takes the form of a jack adapted to receive and to hold a lasted shoe, and a supporting structure on fwhich the jack is mounted for turning, tipping and feeding movements in order to present the shoe properly to the operating devices and to transfer th'evoperation about the sole margin of the shoe. s The operating connections forth'e jack include a pattern cam shaft driven in timed relation to the'shoe operating devices and having mountedthereon pattern cams for imparting saidl positioning movements to the jack. The vpattern cam shaft and cams thereon are adaptedv and arranged to be driven through one revolution for each complete operation about the shoe. The pattern cams operate during this period to`impart the required positioning movements to the jacked shoe to transfer the operation Aabout the sole margin of the shoe, and thereafter when the shoe is disconnected from the operating devices, to reestablish-the jacked shoe inthe initial loading position away from the operating devices and with the toe of the shoe pointing to the right.`

It is one object ofthe invention to provide a novel and improved means forfadapt'ing the drive' for the pattern cam shaftfto different conditions of operation of theH automatic machine on which operations of different length are 'performed about the sole margin of the shoe as, for example, when a change is made from an operation extending from the breast line of the heel about the forepart of the shoe only, to an operation which extends also about the heel seat, passing entirely around the sole margin ofthe shoe.

Specifically, it is an object of the inventionto adapt the operation of the automatic shoe support including the jack andthe supporting and actuating mechanism for the jack to transfer the operation entirely around the sole margin of the shoe including the heel seat in timed relation to maintain the desired rate of feed of the shoe with relation to the mechanism for operating upon the shoe, and thereafter to return the jack and associated operating parts to an'initial loading position.

It is another object of the invention to provide a novel and improved construction and arrangement of the supporting and actuating mechanism for the jack which is particularly adapted for use under conditions in which the operation has been transferred entirely around the shoe including the heel seat to permit the return of the jacked shoe and of the automatic supporting and actuating mechanisms therefor to the initial starting position away from the shoe operating devices quickly and with a minimum amount of movement of the several cooperating mechanisms including the jack.

With thesevand other objects in view as may hereinafter appear, the several features of the invention consist in the devices, combinations and arrangement of parts hereinafter described and claimed which together with the advantages to be obtained thereby will be readily understood by one skilled in the art from the following description taken in connection with the accompanying drawings, in which Fig. 1 is a view in right side elevation of an automatic inseam shoe sewing machine embodying in a preferred form the several features of the invention, portions of the casing having been broken away to show the supporting structure and actuating mechanism for the shoe supporting jack; Fig. 2 is a fragmentary detail View on an enlarged scale and partly in section of a portion of the pattern shaft drive shown in Fig. 1, illustrating particularly the change speed driving connections for the pattern shaft provided in accordance with the invention; Fig. 3 is a fragmentary plan view on a large scale showing a portion of the drive to the pattern cam shaft, the jack, feed, pitch, roll and turn cams for 360 degrees of rotation of the jack and return, the associated follower levers, and the manual control for the change speed connections illustrated in Fig. 2; Fig. 4 is a sectional plan view of the pattern cam shaft, `the pattern cams as shown in Fig. 3 for effecting a'360 degree rotation of the jack, and the supporting structure for the jack; Fig. 5 is a detail sectional view in elevation taken on the line 5-5 of Fig. 4 illustrating particularly the rotary Wheel, supporting bearings and gimbals on which the jack spindle is mounted, to turn together with the mechanism for latching the jack to turn with the jack turning connection and for disconnecting the jack therefrom; Fig. 6 is a fragmentary sectional View of the latching mechanism corresponding with a portion of Fig. 5, but with the jack disconnected from `the rotary wheel and locked against movement while the Wheel is rotated to the initial starting position; Fig. 7 is a detail sectional plan view on an enlarged scale of the pattern cam shaft, pattern levers, and a set of jack, feed, pitch, roll and turn cams adapted for controlling the operation of the jack to transfer the operation from the breast line of the heel about the forepart of the shoe only; Fig. 8 is a fragmentary sectional View of the cam lever supporting shaft 'shown in Figffl, but rocked to move the cam levers away 'from their cams; Fig. 9 is a detail view in right side elevation illustrating particularly the pattern cam levers and their connections with the jacksupporting and controlling mechanisms; vand Eig. 10 is a fragmentary detail View infront elevation of the foot treadle for moving the pattern cam levers away from their cams.

Referring specifically to the drawings, the automatic shoe machine disclosed .particularly in Fig. 1, comprises a casing or frame built up of several sections including a floor section l0 housing particularly an oil sump and the various foot treadle controls, a middle section lf2 housingprincipally the jack supporting mechanism and the :pattern mechanism of the machine, a head section .i4 housing the shoe operating mechanism illustrated in the Morrill Patent PNo. 2,359,664 above referred to, and the top section i6 supporting thereon the driving motor i8, reduction vdriving gears therefrom and a distributing reservoir forming .-partzof the oiling system for Athe machine.

`As indicated indotted lines-in Fig, 1, .thedrive is taken from the motor 'i8 directly downwardly through the head section I4 of the casing .to a step motion including the maindriving and stopping clutch for the machine, and thence tothe sewing cam shaft by means of which the sewing mechanism is driven and to the pattern cam shaft which controls the automatic operation of the jack.

Infautomatic machines of the general type here disclosed, ythe rate of drive -of the -pattern 4cam shaft is adjusted with relation Vto the lpredetermined or set rate-of feed of the shoe operating mechanism about the sole margin of the shoe to cause the pattern mechanism, including `the pattern cam shaft and cams, to be rotated through substantially a complete revolution during the same period in which the shoe loperatingniech-anism is caused to complete the operation about the'shoe sole. The inseam shoe sewing operation referred to, ordinarily starts vat the breast lineof the heel, passes around the forepartof the shoe, and Ytern'iinates when the breast Vline 4-of -the -heel is again-reached.

In accordance with the present invention, the pattern mechanism lof vthe rmachine including -the driving connections thereto, are particularly foonstructed vand arranged to permit fan :alternative adjustment of the machine for 4the .performance of operations which extend from the breastlineof the heel around the fforepart of the shoe -only'and for the performance of loperations whichextend additionally around `the heel, passing `entirely around `the sole margin of the shoe.

A-featureof applicants novel construction-consists in the provision of Itwo alternatively 4available sets of pattern cams on the-cam shaft for controlling the operation of the jack during the performance of these alternative operationsabout the sole margin of the shoe. Another feature-of applicants construction consists in the provision of means for controlling the rate of drive'of 'the pattern cam shaft relative to thelrate of drive of the shoe'operating mechanism in order to maintain the same rate of feed of the sole margin of the shoe past the shoe operating mechanism un- 4 der each of the operating conditions above referred to in which the operation is transferred from the breast line of the heel about the forepart of the shoe only, or alternatively, is transferred entirely around the sole margin of the shoe including the heel seat. The mechanism provided in accordance -with lthe invention yfor varying the rate of drive, comprises a group of change -speed gears including `a change speed gear unit shiftable to cause the pattern cam shaft to be rdriven'at either of two alternative driving rates.

`As shown in the drawings, the driving connections for .the machine include a reduction gear 2G on .thezarmature-shaft 22 of the motor I8, and a reduction -gearf24 which is connected to drive the main drive shaftf26- The shaft 26 is in turn connectedby means of gears 28, 3D to drive an external coned clutch member 32 forming the driving element of the main driving clutch which is loosely supported to turn on a vertically arranged driveshaft 34. The cooperating-driven element of the Imain driving .and 4stopping clutch ycomprises anfinternal coned clutch -member lwkeyed t0 turn with and to Vslide -on the drive shaft 34. The driven/member 40-of the clutch is connected through the vertical drive shaft 34 to drive the pattern mechanism of the machine including the pattern cam shaft 42, and is also connected l'to drivelthe sewing cam shaft 44 through the meshingengagement of ya spiral gear deformed on the upper peripheryofthedriven clutch member 4S] with a spiral Vgear'48 secured to the sewing cam shaft 4'4. The-drive to Ithe Ypattern camshaft is taken fromthe main clutch'downwardly through the '.clrilve shaft 34 y-.andclutch -50 as generally indicated in Fig. 1, and thence/through an aligned shaft 52 to a variable speed drive device generally designated at l54 -in Fig. 2, fby means of which the rate'of `drive-of the pattern cam shaft is adjusted infaocordance with the sizeof shoe being operated vupon to maintain a constant rate of feedof the sole margin past the shoe operating mechanism.

Iniaccordance with the invention, the pattern cam shaftis arranged to be driven from the driven shaft of thevariable speed mechanism through a changespeed gear vunit which is shiftable to drive the earn shaft at Aeither of two rates, vone rate "being-.set for Vthe transfer Iof the operation upon the sole margin vof the shoe 4from the breast line of theheel about the toe portion of the shoe only, 'and the-.other being set for the transfer of the operation Aentirely around the lshoe including the heel seat. The change speed mechanism'referred tocomprises la change speed gear unit consisting of gearsf58;60 splined to the lower end vof shaft 52 and arranged for axial shifting movement in onedirectionvto cause the gear 58 to beibrought into mesh with a driven gear 62 ,for use during the operation-about the'forepart of the shoe only. and-for shiftingfmovement'in the opposite direction to engage the gear 60 with gear 64 when the operation is `to be transferred entirely around the shoe including the v'heel seat. The gears 62, lld'are mounted upon a stub shaft 68 to turn asa unit witha driving gear 68 which meshes with 'a large gear vlll on a drive shaft J2. The pattern shaft 42iis arranged to be driven from the drive shaft 12 through ygear connections which comprise a series of identical driving gears 14 on the shaft 12, whichare arranged for engagement with a driven gear `It mounted on the upper endof the axially shiftable pattern shaft 42 for any position of adjustment of the pattern shaft.

JInaccordance with the disclosure ofthe patent y to Morrill above referred. to, the pattern shaft 42 is adjustable vertically in order torender different sets of jack actuatingfcams selectively operable to control the operation of the jack. As best shown in Fig. 1 of the drawings', vertical adjustment of the pattern cam shaft 42 is effected by means of a manually operable lever arm 80 which is supported to turn on a stationary pivot 8|, and has formed on the hub portion thereof, an internal gear 82 meshing with a pinion 83 on ra transversely extending shaft84.v A pinion 85 on the shaft 84 meshes with a circular rack 86 formed on the upper portion of a pattern cam lifting shaft 87 axially disposed within anaxial bore in the pattern shaft y42. r The manually operable lever .arm 80 is provided at its outer end with a control handle (not shown) 'having a springpressed detent for engagement with recesses 89 corresponding with each of the vertically adjusted positions of the pattern cam shaft 42.

The mechanism for controlling the rate of rotation of the pattern cam shaft with relation to the rate of operation of the Sewing mechanism for transferring the operation alternatively about the forepart and heel seat, or about the forepart only of the shoe, comprises the vertically shiftable change speed gears 58, 60. Movement of these gears upwardly so that the gear 58 meshes with the driven gear 62 will cause the pattern shaft to be driven at a relatively faster rate, normal for operations in which the sewing or other operation is carried from the breast line of the heel around the forepart of the shoe only. Downvvard movement of the change speed gears 58, 60 so that the relatively smaller gear 60 is in mesh with the gear 64, will cause the pattern Shaft to be driven at a relatively slower rate to allow time for the continuance of the operati-on around the entire sole margin of the shoe.

Shifting of the pattern shaft change speed .mechanism from one to another position is effected by means of a manual control lever 90 (see Figs. l, 2 and 3) mounted atthe right side of the machine on the outer end of the rock shaft 9| carried in a bearing 92 in-the machine frame. At its rear end the shaft 9| `carries a lever arm 94 with a gear shifting shoe 96 pivotally mounted thereon for engagement in an annular groove 98 provided between the

gears

58, 60. The hand lever 90 'as best shown in Fig. 3, is provided with a knurled knob |02 and a spring-pressed detent plunger |04 controlled therebywhich is adapted for engagement in any one yof three recesses |06 formed in aface plate |08 for positioning the hand lever 90 and change speed gears 58, 60 in either of two alternate operating positions or in the intermediate neutral position shown in Fig. 2.

The jack shown with the illustrated embodiment of the invention, is that shown in the Morrill Pat-A ent No. 2,323,346 above referred to, which is particularly constructed and arranged to be rotated' where so desired through more than 360 degrees of rotation. The jack as generally indicated in Figs. 1 and 4 of the drawings, comprises a shoe supporting and clamping unit, 2 which is rigidly supported at its toe end on the upper end of a jack spindle ||4. The-.jack is connected with a feed lever I6 by means of a feed link ||8 which has a swivel connection |20 with the toe end of the jack and is constructed and arranged to lie wholly below the level of the shoe supporting and clamping unit ||2 to permit complete freedom of rotation of the jack. n

The supporting structure for the jack is' similar to that of the Morrill PatentNo. 2,359,664 above referred to, except for such changes as will be hereinafter more fully pointedV out. The lever supports for the jack as indicated in Fig. 4, include a horizontal supporting arm |24, in the forward end of which the lower end of thejack spindle H4 is mounted to rotate and to swing freely on a universal joint, a pitch support lever |26cn which the arm |24 is mounted to swing vertically, and a roll support lever or frame |28 pivotally mounted at its lower end in the machine base so as to be capable of swinging about a horizontal axis, and upon which the support |26 is mounted so as to swing about a substantially vertical axis.

The operating connections provided for controlling the operation of the several lever supports referred to, include a feed cam lever |30, a turn cam lever |32, a roll cam lever |34 and a pitch cam lever |36 loosely mounted one above the other to turn on a vertically arranged pivot shaft |38 (see Figs. 4, '7 and 8). These levers are adapted to cooperate with corresponding sets. of cams on the pattern cam shaft 42, which in the illustrated form -of the invention include two alternatively available sets, one for controlling the jack during an operation which extends from the breast line of the heel around the forepart of the shoe only, and the other for use in the operati-on which extends entirely around the sole margin of the shoe including the heel seat. A series of cams for use in transferring the operation entirely around the sole margin of the shoe including the forepart and heel seat are shown in Figs. 2, `3 and 4 of the drawings. These cams include a feed cam |40, a turn cam |42, a roll cam |44 and a pitch cam |46. Fig. 7 discloses the outlines of the alternatively available series of cams for controlling the jack during an operation around the forepart ofthe shoe only, and include a feed cam |48, a turn cam |50, a roll cam |52 and a pitch cam |54.

The sets of cams above referred to, are made alternatively available as previously pointed out, by a vertical adjustment in the position of the pattern shaft 42. To hold the cam levers awal7 from the cams while the cam shaft is being adjusted, the shaft |38 on which the cam levers are mounted, is provided with shouldered collars |56 (see Figs. 2, 7, 8 and 9) which are rendered operative by clockwise movement of the shaft |38 to engage with adjustable stop screws |58 on the hubs of the levers, and to move the cam ends of the levers away from the cams as shown particularly in Fig. 8. For rocking the shaft |38,

connections are provided (seeFigs. 4, 7 and 8) controlled by means of a foot treadle |60 (Figs. 4, 7 and 10) located at the right side of the machine. The foot treadle |60 is supported intermediate its length on a pivot pin |82. At its lower end the treadle lever |60 is connected by means of'a pair of links l t4 to a slide member |66 extending transversely of the base of the machine, and having a pin and slot connection with a lever arm |68 secured to the lower end of the shaft |38 (see Fig. 7). For the normal running position of the parts, the foot treadle |50 remains in the raised inoperative position shown in Figs. 4, 7 andv 10. Movement of the treadle downwardly by theA operator acts tostraighten the toggle and to shift the slide I to the left, so that the pivot shaft |38 is rocked in a clockwise direction to the position of the Fig. 3, to move the levers away from their cams. V

l The pitch cam lever |136 is connected to impart pitch tipping movements tothe jack by 'means of a link |10 which is connected at one end` with the pitch cam lever |36 and at its other end with the' pitch support lever |26. The roll` cam` lever |34 'is vconnected 4to impart roll tipping movements tothe jack 'by means of atlink |12 which is" connected at one end to the roll cam lever |434 andA at its other end to the roll support lever |28. The feed cam lever| 'is'connected to impart feed movements to the feed lever IE of the machine through link connections which are-arranged to be automatically adjusted in accordance Withthe vsize of shoe being operated upon. Theseconnections are not herespecically shown, since' these partshave been fully set forth in the Morrill Patent No.r2,'359,664 above referred to, and form `specifically no `part of the present invention.

and around a wheel |92 at the outer end of the r jack `supporting arm |24 on which the jack spindle ||4 is'mountedfor turning movement. lI lhence "the c ord extends rearwardly over anV idler pulley |94 and downwardly to a weight ISS which'serves to maintain lan adequate tension on the cord. As shown in Fig. l, the jack is arranged to be further supported by means of an upwardly'extending supporting rod |98 connected at its upper end by means of a universal joint with the under side of the jack supporting arm and at its lower end by means of Aanother universal joint to the forwardly extending arm of a bell-crank lever 200'which is loosely supported to turn on a pivot shaft 262. A pair of heavy tension springs 294 connected to two downwardly extending arms lof the lever Zilil tend to move the lever 209 and rod |98 upwardly to maintain the jacked shoe yieldably in engagement with the shoe operating mechanism. AA tension spring 206 connected between the rod |98 and the downwardly extending tip 208 of the spindle I4 tends to swing the jack and spindle l outwardly away from the operating mechanism.

When the machine is stopped, the jack is depressed so that it is permitted to swing outwardly to its inoperative position by means of a toggle connection comprising a toggle linl; 2|il conenected to the lever 260 and a cooperating toggle link 2I2 mounted on a fixed pivot 2M. The toggle is straightened to depress the jack through connections which include a control rod ZIB provided at its lower end with a washer 2m for engagement with a forward extension of the toggle link`2l2. The rod 2|6 is arranged to be moved upwardly during the operation of the machine stop motion to straighten the toggle. Inasmuch as the jack mechanism thus generally referred to, is similar to and operates in a similar manner to that illustrated in the Morrill Patent No. 24,359,664 above referredtdno further description thereof is believed necessary.

In automatic machines of the character described, at the completion of the operation upon the shoe, the jacked shoe is disengaged from and moved away from the shoe operating devices,

and a final increment of movement vis imparted to the pattern cam shaft to cause the several parts of the automatic mechanism tobe returned to their initial vstarting position. During `this return operation, the mechanism for turning the jack` is rotated rapidly in the reverse direction carrying with it the jack whichris thus brought to the loading position with the'toe facing to the right. Where the operation on the sole margin of the shoe is extended entirely about the shoe sole including the heel seat, the jack turning connections must be operated inthe reverse direction a substantially greater' distance than is required for the return following an operation from the heel seat around the toe only. Instead of being required to return through approximately one half revolution, the jack supporting wheel |92 and jackvmounted thereon must be returned through a full revolution. In order to maintain the necessary operating relationship and timing of this mechanism to the other elements of the automatic support and the turn mechanism including the `wheel |92 and jack, it has been found necessary to employ a rate of i return movement of the turning mechanism and jack which taken with the increased swing of the jack in the reverse direction has caused objectionable strains to be placed on the mechanism. There is also the further objection that the operator is exposed to the risk of serious injury from contact with the rapidly moving jack and associated parts. s

A feature of the present invention consists in the improved construction and arrangement of the supporting and'actuating mechanism of the jack to effect the vreturn of the automatic supporting and actuating mechanisms to their initial starting position and the location of the jack in its initial starting position away from the shoe operating devices upon completion of an operation completely about the shoe including the heel seat without the necessity of imparting any rotational movement to the jack beyond that required to establish the jack in the loading position.

In accordance with the invention, the jack is adapted to be operatively disconnected from its supporting wheel |92 and to be turned independently thereof. Referring to Fig. 5 of the drawings, the wheel |92 is mounted toturn on a vertical axis on a ring ball bearing 22d, and provides support for a ring member 22e which carries the lack and is rotatable independently of the wheel |92. The ring member 22B is mounted to turn on a recessed annular surface 221 formed on the upper surface of the wheel |92, and is held in position by means of a locking ring 228 which is secured to the upper surface of wheel |92 at its outer edge and overlies the outer edge 4ofthe ring member 225. The jack is supported t0 swing freely about 'its support on the ring member 226 on a universal joint which takes the form of a pivot 23E) carried in the ring member 226 and an intersecting pivot 232 mounted to extend across a slotted portion 234 of the spindle H4.

Further in accordance with the invention, a latching device is provided which is normally operative to latch the ring member 226 and jack carried thereon to turn with the wheel |92 and is` arranged to be shifted automatically to an alternative disengaged locking vposition upon completion of the operation about the shoe so that the jack is locked against rotational movement while the Wheel |92 of the jack mechanism ,is permitted to turn through a full revolution in the reverse direction, when the latch will again ,return to its operative position.

The ring member 226 and 'jack spindle ||4 are connected to turn with the wheel |92 by means of a latch 236 which 'is carried on the ring member 226 and is arranged for latching engagement with a notch formed in the annular ring v228 secured to the upper side of thewheel |92. 'The latch 236 is pivotally supported on a pivot pin 246 mounted in a lug 242 on the ring support 226. A tension spring 244 tends to rotate the latch in a clockwise direction to the position shown in Fig. 5, in which the downwardly eX- tending projection thereof bears against the cammed inner edge 246 of the annular ring 228,

and is normally pressed into a notch 248 formed in the ring to rigidly secure vthe ring member clookwise direction from the operating position shown in Fig. to the inoperative jack locking position of Fig. 6,'so thatthe wheel |92 is disconnected from the ring support 226 of the jack, and may be rotated freely in a reverse direction through one entire revolution to its starting position, while at the same time the jack is securely locked in the position taken at the end of the operation upon the shoe. In the position shown in Fig. 6, an upwardlyextending portion of the latch 236 is arranged to be engaged in a notch 256 formed in the outer wall of the jack supporting arm |24, while the lower end of the latch 236 rides upon the bevelled inner edge 246 of the annular ring 228 to maintain thev latch in its inoperative jack locking position. As the wheel |92 at the completion of the return movement through one revolution is brought again to its initial angular position with relation to the ring support 226 and the jack, `the latch 236 is permitted to drop into engagement with the notch 248 in the ring 228, thus again connecting the jack to be turned with the Wheel |92.

The latch 236 is arranged to be moved from its operative latching position to the disengaged jack locking position of Fig.v 6, by means of a spring-pressed actuating member 254 pivotally mounted on an upwardly extending arm or bracket 256 secured to the louter end of the jack supporting arm |24. The actuating member 254 is normally heldin a retracted position to the right as shown in Fig. 5, by means of a leaf spring 258 which bears against a portion of the bracket 256. Outward swinging movement of the spindle I |4 to the dotted position of Fig. 5 in moving the jack away from the shoe operating mechanism at the completion of the operation on the shoe, causes the spindle ||4 to engage the actuating member 264, moving said member to the dotted position shown in Fig. 5, in which it wipes past and moves the latch 236 against the pressure of spring 244 to the inoperative jack locking position. The wheel |92 immediately starts to rotate in the reverse direction as the cam follower lever |32 rides against the steeply sloped return portion of the jack turn cam |42, causing the lower end of the latch 236 to be engaged against the surface 246 of the annular ring 228. Upon completion of the reverse movement of thel jack turn connections including the wheel |92 through a full revolution, the latch 236 heldagainst the cammed surface 246 of the locking ring 228 b y its spring 244, again drops into engagement with the notch 248 to re-establish the operating connection between the wheel |92 and jack supporting ring member 226. The jack is finally located in its initial loading position in accordance with the dictation of the several pattern 'cams including the pattern turn cam |62.

For the performance of an operation entirely around the sole margin of the shoe including the iheel seat, the supporting and actuating mechani'sm for the jack is adjusted and is caused to operate in the following manner:

The operations which must be performed by the operator to condition the jack actuating delvices for the transfer of an operation about the 'entire shoe or alternatively about the forepart of the shoe only, may be summarized briefly as follows:

Assuming that an operation entirely around the sole margin of the shoe including the heel seat is contemplated, the bank of pattern cams will be moved vertically to bring the feed cam |40, turn cam |42, roll cam |44 and pitch cam l| 46 into operation relative to the cooperating cam levers to the position shown in Figs. l, 2 and k3. As shown in these figures, the pattern cam shaft 42 and lifting lever 87 have been moved to their extreme high position. In order to effect this adjustment, the operator rst actuates the lever |66 (see Fig. 7) to rock the shaft |38 to the position shown in Fig. 8, thus moving the cam follower levers away from the cam bank. Vertical adjustment of the cams is then eifected by actuation of the control lever 60 actingv through internal gear 82, pinion 66, rack 86 and cam lifting rod 81. The foot treadle |66 is then released to permit movement of the rock shaft |38 with the cam levers against the pattern cams. The control lever 96 is now set in the eXtreme down position shown in Fig. l, so that the gear 60`meshes with the driven gear 66 to drive the cam shaft 42 at the slower rate with relation to the operating mechanism. The machine is now in condition to be started. Following the usual practice in machines of this type, a shoe is placed on the jack which is pressed downwardly or jigg'led to release the toggle, and the shoe is brought into operating relation to the operating mechanism in the starting position, thus setting the machine for operating upon a shoe of the size presented in the machine. The operator now steps on the foot treadle to start the machine into operation.

During the following operation about the shoe, the jack is arranged to be rotated on its support by means of the connections controlled from the turn cam |42 including the Wheel |92 to which the jack is connected by the engagement of latch 236 in notch 268 in annular ring 226. At the end of the operation which is performed entirely about the shoe, the jack will have been rotated through approximately 360 degrees and is returned angularly to its starting position.

As previously noted, the outward movement of the jack on its spindle H4 to the inoperative position shown in dotted lines in Fig. 5 upon completion of the operation about the shoe, is emascenso 1l ployed to actuate the actuating member 254 to trip the latch 236 from the operating position of Fig.` 5 vto the alternative inoperative locking position of Fig. 6, in which the latch 235 engages with the stationary notch 250, the latch being held in this position by the engagement of the tail of thelatch with the cammed surface 246 of ring 228 as the wheel i9?. carrying with it ring 228 is rotated in the reverse direction. When the wheel H52 and ring 223 have returned to their starting position, the latch 236' acted upon by its spring 2LH again drops into engagement with the notch 2118.

In the event that it is desired to set up the machine alternatively for operation upon a shoe in which the operation is to be carried from the breast line of the heel about the forepart of the shoe only, the operator first actuates lever |60 to rock shaft 38 and the cam follower levers away from the bank of pattern cams, and then moves the control lever 89 downwardly tobring feed cam Hi8, turn cam V50, roll cam |52 and pitch cam 154 into operative relation to the follower levers. Control handle is now moved upwardly 180 degrees from the position shown in Fig. l, to raise driving

gears

58, 68 so that the gear 58 meshes with gear $2 to drive the pattern cam shaft G2 at the relatively faster rate with relation to the operating mechanism. For an operation which extends about the forepart of the z shoe only in which the jack is rotated approximately 180 degrees, it will be understood that the jack remains coupled at all times to the wheel E92 and is returned therewith in the reverse direction to starting position upon the completion of the operation about the forepart of the shoe.

The invention having been described, what is claimed is:

l. In a machine for operating upon shoes, means for operating along the sole margin of the shoe, a shoe supporting jaclfz, means for moving the jack inV accordance with an operating cycle to present a jacked shoe to the operating means and to transfer the operation of said operating means entirely around the sole margin of the shoe including means'for imparting tipping and feeding movements to the jack, and a jack rotating wheel adapted to be rotated in one direction from a starting position through one revolution,

and thereafter upon completion of said opera'tion in a reverse direction to said starting position, disconnectible means connecting the jack to turn with the wheel, and means to disconnect the jack from the wheel to cause the wheel to be rotated independently of the jack to the starting position.

2. In a machine for operating upon shoes, means for operating along the sole margin of the shoe, a shoe supporting jack, supporting and actuating means adapted for impartingA turning, tipping and feeding movements to the jack to present a jacked shoe to the operating means andtotransfer thev operation entirely around the sole margin of the shoe including a jack rotatingy wheel arranged to be rotated from a starting position in one direction through a full revolution to complete said operation, and in the reverse direction to return said jack rotating wheel to the starting position, and connecting means shiftable between connecting and disconnected positions arranged to connect the jack to turn with the wheel to transfer the operationrabout the shoe and shiftable to said disconnected position during the reverse movement of the jack rotating wheel to the starting position.

3. In a machine for operating upon shoes,

meansfor operating along the sole margin of the shoe, a shoe supporting' jack, a system of supporting levers on which the jackV is mounted for turning, tipping and lfeeding movements, jack actuatingr means including a jack rotating wheel arranged to be rotated in one direction to turn the jack to transfer the operation entirely around the V sole margin of the shoe and to be returned in the opposite direction to its startingk position, and a connecting device shiftable between an operative position connecting the jack to rotate with the wheel andV to an alternative disengaged jack locking position in .which the jack is locked againstr rotational movement during the return movement of the jack rotating wheel to the starting position.

4. In a machine for operating upon shoes, meansfor operatingalong the sole margin of the shoe, a shoe supporting jack, a jack supporting assembly including a jack supporting arm, a jack rotating wheel mounted to turn thereon, a rotatable jack supporting member concentric with the wheel, a universal joint for supporting the jack from said member, actuating means for the jack including a pattern shaft and cam and follower connections therefrom including connections operable to rotate said wheel in one direction to turn the jack to transfer the operation entirely around the shoe, andthereafter to return the wheel in the opposite direction to the starting position, a latch on the rotatable jack supporting member arranged for movement between an operative position in latching engagement with said wheelto an alternative inoperative position in engagement with the relatively stationary jack supporting arm, and means actuated by movement of the` jack about said universal joint outwardly from the operating mechanism to trip the latch to the `inoperative position.

5. In an automatic machine for operating upon shoes, means for operating along the sole margin of the shoe, a shoe supporting jack, a system of supporting levers on whichA the jack is. mounted for turning,y tippingand feeding movements, a pivotal supporting assembly connecting the jack with said system of levers including av jack rotating wheel, a rotatable, jack supporting member concentric therewith, a, universal joint connecting said member and the jack, jack operating,f means including means for rotating the wheel to impart turning movements to the jack duringI the transfer of the operation completely around the sole margin of the shoe, and movable thereafter in a return direction to the starting position, means operative upon completion of the operation to disengage the shoey fromY the operating means and to swing the jackl outwardly on its pivotal support, a latch normally connecting the jack supporting member with the wheel, and means actuated by outward movement of the jack to disengage the latch to permit the return of said wheel to starting position independently of the jack.

6'. In an automatic machinefor operating upon Shoes having means for operating along, the sole margin of a shoe, the combination of a shoe supporting jack, jaclrsupporting4 means including a jack supporting member and actuating means adapted for imparting turning, tipping and feeding movements to` the jack, means to transfer the operation entirely around the sole margin of the shoe, and thereafter to move the jacked shoe away from the operating means including a rotatable driving element for: imparting turning movementsA to the jack on said jack supporting member, means for rotating said driving element from a starting position to transfer the opera'- tion about the shoe, and thereafter to return said driving element in a reverse direction to the starting position, a latch supported to turn with the jack shiftable between an operative position in latching relation with said rotatable driving element and a locking position in engagement with said jack supporting member, said latch being arranged with relation to the jack to ybe tripped from the operating to the locking position by the outward movement of the jack away from the shoe operating mechanism.

7. In a machine for operating upon shoes, having means for operating along the sole margin of the shoe, the combination of a shoe supporting jack having a rotary spindle, a supporting structure on which the jack spindle is mounted to turn including a jack supporting arm, a wheel rotatable on the arm, a rotatable spindle support concentric with the wheel, and connecting means shiftable to connect the rotatable spindle support in a fixed angular position to the jack supporting arm, and shiftable alternatively to connect the spindle support to turn with the wheel.

8. In a machine for operating upon shoes, having means for operating along the sole margin of the shoe, the combination of a shoe supporting jack having a rotary spindle, a supporting structure on which the jack spindle is mounted to turn including a jack supporting arm, a wheel rotatable on the arm, a rotatable spindle support concentric with the wheel, a locking recess in each of the supporting arm and wheel, and a latch on the spindle support shiftable to one position in locking engagement with the recess in the supporting arm and to an alternative position in locking engagement with the recess in the wheel.

ing recess in each of the supporting arm and wheel, a latch on the spindle support shiftable to one position in locking engagement with the recess in the supporting arm and to an alternative position in locking engagement with the recess in the wheel, and a trip member on the supporting arm arranged for one angular position of the rotatable spindle support and latch relative to the supporting arm-to be actuated by outward movement of the jack spindle to trip the latch into engagement with the locking recess on'the supporting arm.

10. In a machine for operating upon shoes having means for operating along the sole margin of the shoe, the combination of a shoe supporting jack having a rotary spindle, a supporting structure on which the jack spindle is mounted to turn including a jack supporting arm, a wheel rotatable on the arm, a rotatable spindle supportl concentric with the wheel, an annular rest surface formed on the wheel with a radially disposed locking recess formed therein, a locking recess in the supporting arm, a latch on the spindle support having a portion thereof disposed forenh gagem'ent with said annular rest surface and for TEM lthe latch into engagement with the locking recess on the supporting arm.

11. In a machine for operating upon shoes. means for operating along the sole margin of the shoe, a shoe supporting jack having a rotary spindle, 'a supporting structure on which the jack spindle is mounted for swinging movement about a plurality of axes, said structure including a horizontally disposed jack supporting arm, a

- swivel connection between the spindle and arm comprising a ring bearing on the arm, a wheel mounted thereon, a ring support rotatably `mounted on the wheel, pairs of pivot pins arranged on intersecting axes connecting the ring support with the spindle, and a. latch carried on the ring support for locking engagement alternatively with the wheel and said jack supporting arm.

k 12. In ra machine for operating upon shoes, means for operating along the sole margin of the shoe, a shoe supporting jack, supporting and actuating means adapted for imparting turning, tipping and feeding movements to the jack, a jack supporting and rotating assembly comprising a jack supporting arm, a wheel rotatably supported on the arm, a ring supporting member mounted concentrically with said wheel to turn relatively thereto, a universal joint for supporting the jack from said member, means for rotating thewheel from a starting position in one direction to turn the jack through a full revolution to transfer the operation entirely around the sole margin of the shoe and in the reverse direction to 'return' said wheel to the starting position, a

device operable for connecting the jack to the wheel for a single predetermined relative angular position only of the jack and wheel, and means for actuating said device to disconnect the jack while said wheel is moved in the reverse direction to the starting position.

`r13. In a machine for operating upon shoes having means for operating along the sole margin of the shoe, the combination of a shoe supporting jack, supporting and actuating means for the jack to present the ,jacked shoe to the operating means and to transfer the operation about the shoe, a pattern cam shaft arranged to beturned through a predetermined angular distance for the performance of an operation about'the shoe,l cams on the cam shaft selectively operable to transfer the operation about a portiononly of the shoe and alternatively about the entire sole margin of a shoe, driving means for themachine including driving connections for rotating the cam shaft, and means in said driving connections to drive the cam shaft at alternative rates in accordance with the selection of said cams.

14. In a machine for operating upon shoes, rneans for operating along the sole margin of a shoe, a shoe supporting jack, supporting and actuating means for the jack including a pattern shaft and connections therefrom for moving the locking engagement Awith said radially disposed 75 jack to present the shoe to the operating means and totransfer the operation about the solemargin of the shoe, driving connections for driving the shoe operating means and pattern shafttin timed relation including a variable Sinai- 3dv drive device for said jackladjusted in accordance with the size of shoe being operatedupon to advance the point of operation about the shoe vsole at a feedrate related to the rate of operation ofthe shoe operating means, andmeans foradjusting the machine for operation to transfer4 thepoint of operation from the breast line of the heel to the fore part of the shoe only,l and ali. elrlati vely to transfer the operation entirely around the sole margin of a shoe includingvthe heel seat, anda change speeddevice for varying the ratehof drive of.y said pattern shaft shiftable in accordance YWith saidalternative adjustment for transferwof the operation about the shoe to maintain substantially unchanged the relation of the rate of/,jack feed vto the rate of drive of said means for opere ating along the sole margin of the shoe.

15.` In a machine for operating upondshoes, means for operating along the sole margin of the shoe, a shoe supporting jack, supportingv and actuating means for tlflegjackl adapted for iniparting tipping, turning and feeding movements to the jack to present the jacked shoe to the operating means and to transfer the operatiqn about the shoe including a pattern cam shaft, cams on the pattern cam shaft Yoperable dnring a revolution thereof to transfer the operation about the forepart only of the shoe from `the breast line of the heel, alternatively seleetable cams on the pattern cam shaft adapted for trans.-` ferring the operation entirely. arounldhthe sole margin of the shoe including the heel seat during one revolution of the pattern cam shaift.. and. driving mechanism for the machine for driving theshoe operating means andthe patternr cam shaft in timed relation thereto including a change speed ldevice. to drivethe pattern camv shaft Vat alternative rates in accordance with thenseleycf tion of said cams to maintain substantially :con: starrt the relation of the rate of jack feecltotne rate of dr-ive of said means for operating along the sole margin of the shoe.

16.` Ina machine for operatingk upon shoes, means for operating along the sole'marginwof, a shoe, ashoe supporting jack, supportingandactuating means for the jack for impartingtippizng, turning and lfeeding movements to the jack, to transfer the `operation about the shoe including a pattern cam shaft arranged tcA be, turned through a predetermined angular distanceior the performance of an operation about` the shoe, selectively operable cams on the pattern shaft for actuating the jack to transferV theopj erationk about the sole margin ofthe `Shoe ,from thebreast line of the heel about the 4forelialft of thewshoeV only, and alternatively to transfer the operation entirely about the sole marginpffhe snceinciuding the .heel seat while the camshaft isxftu'rnedlthrough said predetermined ,angular distanca and. a driving mechanism for driving saidshoe operating means and pattern cam shaft including .al change speed device yoperable for varying therate of drive of the pattern camshaft relative to the drive of said shoe operating means in Yaccorrlancew-ith vthe selection.Y of Vsaid ca ms to maintain constant the, relation` of lthe rateotf jack feed ,to the rateof drive of saidmeans.,for Operating 'alone the .S016 mereipef .the Shoe,...

metes fflepefetine alena .the .Sele mare-ippftthe. i

shoe, a shoe supporting jack, supporting and acmating means. fory the iaelsineliidine a pattern meehanism. fof imparting turning.. tipping and feedingl mevementsto the. jack. to presentv tne shoe te .the Operating means andino transfer the operation.k about the sole margin` of thev shoe, driving connections rfor driving the shoe operating means and jack actuatingmeans` in timed relation to advanoevthe point of operation about the shoe sole, means for adjusting said pattern mechanismfor operation to transfer the point of operation from the breast line of the heel about the forepart of the shoe only and, alternatively, to transfer the operation entirelyaround the sole margin of a shoe including the heel seat, and meansV for varying the rate of drive. of said jack actuating means to maintain Substantially un,- changed the relation` of the rateof jack feed to theA rate of drive of Ysaid means for operating along, the sole margin of the shoe.

18. In aumachinefor operating upon shoes, means for operating, along the sole margin of the Shoe, ashore supporting jack, Supporting and. ae.- tuatirig`r means for the. jack including a ,pattern mechanism, for imparting turning., tipping. and feeding` movements to thejack to present the shoe t0 theoperating means and toxtransfer theoperatonabout the sole margin fof the shoe, driving andv stopping mechanism forthe machine,v operatingoonnections-for ydriving the lshoe operating means .and jack actuating. meansin timed re.- lation including avariable speed drive rdevice -for saidjack adjustedin accordance-With thetsize of shoebeingoperated upon to advance the point of operation about the shoesoleat afeed rate related to-therate of operationv of the shoeoperatinglv means, and means for adjusting said pattern mechanism for operation to transfer` the point offoperationy from `thebreastline of the heel aboutpthe forepartofgtheshoe only and,Y alternatively, to"v transfer thev operation entirely around-the sole nualgin of the shoefincludine a cheese Speed device. Operable-tordrive the pattern mechanism alternatively at -two different rates with` relation` to V.the -shoeoperating means to maintain. substantiallyu-nchanged `the relationof. the feed rateoftheshoe. to the ratefof drive. of the means for operating along the sole margin lof theshoe.

19. In a.machine for operating upon,l shoes havingmeans .for operating along lthesole mar gin .of ythe shoe,v the combination of a. shoe snpporting jack, a .system of supporting. levers on whichathe jack-.is `mountedfor turning, tipping and ffeeding movements, a jack rotating wheel arranged .to be rotated in onexdireotiony to turn the jack to transfer theoperationabout the sole margin of. the shoeandto be returned. in the op.- posite direetiony tor its. Startins position. a conmeeting device .shiftableto an,y operative position connecting the jack to rotate withtheiwheel and torenalternative;.disengaged giaokf. locking positie in Whichffthe lJ'ackfis.leekedaeairist rotational movement dnringlthe retnrnmovement 'of the jack rotating Wheel to. the s tapting-position, Jack actuating meansineluding. a pattern. cam shaf-taijranged'to beitur-ned through ga predeter-.mined angular .distance for the performance of an;` .Operation aboutfthe shoe. cams `on.v the, cam shaft selectively operable to ,transfer the operationabout aportion onlyof` the shoe, and alternativelyabout. theentire sole vmarginY of aishoe, means.- operative ornamenti-1e operation has beeps-transferred entirely, about the sole. .mars-in @tithe .shoe .to .shift .said .eonneetinedence-tothe disengaged locking position, driving means for the machine including driving connections for rotating the cam shaft, and means in said driving connections to drive the cam shaft at alternative rates in accordance with the selection of said cams.

20. In an automatic machine for operating upon shoes, means for operating along the sole margin of the shoe, a shoe supporting jack, supporting means for the jack including a jack rotating wheel on which the jack is rotatably mounted, a latching device shiftable between a latching position in which the jack is connected to turn with the Wheel and an alternative disconnected position, actuating means for the jack comprising a pattern cam shaft arranged to be turned through a predetermined angular distance for the performance of an operation about the shoe, alternatively operable groups of cams on the cam shaft for rotating said Wheel and for moving the jack to transfer the operation about the sole margin of the shoe, one of said groups of cams being arranged to transfer the operation about the forepart only of the shoe and thereafter to return the Wheel in the reverse direction to the starting position, and an alternative group of said cams being arranged for moving the jack to transfer the operation entirely about the sole margin of the'shoe and thereafter to rotate the Wheel in the reverse direction to starting position, means for rendering said groups of cams alternatively operable, driving connections for rotating the cam shaft, means in said driving connections to drive the shaft at alternative rates in accordance with the selection of said cam groups, and means operative when the jack has been turned to transfer the operation entirely about the shoe to disconnect the jack from the wheel for the reverse movement of the wheel to starting position.

21. In a machine for operating upon shoes, means for operating upon the sole margin of the shoe, a shoe supporting jack, supporting and actuating means for the jack comprising a pattern cam shaft, cams, and connections therefrom constructed and arranged to be rendered operative by rotation of the pattern cam shaft from an initial starting position through on revolution to impart tipping, turning and feeding movements to the jack to present the jacked shoe to the operating means and to transfer the point of operation entirely around the sole margin of the shoe, said cams acting thereafter to return the connections to the initial starting position, means operative upon completion of the transfer operation about the shoe to disconnect the jack from turning movement with said connections during the return of the connections to the initial position, and driving means adapted for driving said shoe operating means and cam shaft in timed relation.

22. In an automatic machine for operating upon shoes, means for operating along the sole margin of the shoe, a shoe supporting jack, supporting and actuating means for the jack comprising a pattern cam shaft, cams, and connections therefrom including a jack rotating Wheel rendered operative by rotation of the pattern cam shaft from an initial starting position through substantially one revolution to impart tipping and feeding movements to the jack and to rotate said Wheel and jack therewith to present the jacked shoe to the operating means and to transfer the point of operation from a starting position entirely around the sole margin of the shoe, said cams acting thereafter to return said connections and to rotate said Wheel in the reverse direction to the starting position, and means to disconnect the jack from the wheel to cause the wheel to be rotated independently of the jack to the starting position.

RUTH W. MORRILL,

Administratrz'a: of the Estate of Alfred R. Morrill,

Deceased.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,323,346 Morrill July 6, 1943 2,359,664 Morrill Oct. 3, 1944