US1911449A - Machine for operating on shoes - Google Patents

Description

y 1933- .1. c. JORGENSEN ,449

MACHINE FOR OPERATING ON SHOES Filed July 7, 1930 3 Sheets-Sheet 1 l/E/V TUAZ TIC/0Q, QjTM m 1 May 1933- J. c JORGENSEN 1,911,449

MACHINE FOR OPERATING ON SHOES Filed July 7, 1930 5 Sheets-Sheet 2 130 /A/ l/E/V 70/9.

y 1933- J. c. JORGENSEN 1,911,449

MACHINE FOR OPERATING ON SHOES Filed July 7, 1930 5 Sheets-Sheet 5 "I! Fig. 5.

Patented May 30, 1933 UNITED STATES JERSEY Application filed July 7,

This invention relates to machines for operating on shoes, and is herein illustrated as applied to an automatic heel-seat lasting machine of. a type disclosed generally, in

Letters Patent No."1,583,044, granted on May l, 1926 upon an application of C.

' Hoyt, except as to somefeatures of the shoe support and its operating mechanism which are more particularly disclosed 111] Letters Patent No. 1,558,737, granted on October 27,

1925 upon an application of R. F. McFeely. It is to be understood, however, that in its more generalaspectsthe inv'ention is not limitedto machines of that particular'type V nor to machines for lasting shoes.

rearwardly against agheel band and isalso pressed against a holddown which determines adjustably the, location of the heel end of the-sole or insoleinrelation to the plane of the, heel-lasting wipers. Combined withthe means forthus operating thejack is also mechanism for closing the heel band inwardly against; the opposite sides of the heel :end of the shoe. In the operation of such machines it may sometimes happen, by

0 reason, for example, of improper adjustment of the holddown, that the shoe is so positioned as to oppose abnormal resistance to the, operative movement of the wipers, as a result of which the operation of the machine is stopped before it completes its cycle. Un-

der such conditions it has been necessary heretofore for the operator, by the use of a lever applied to .a wheel on the machine, to complete the cycle of the, machine manually.

This is a slow and diflicult operation and involves danger of damaging the shoe or of breaking some part of the machine.

An object of the present invention is to' avoid such difiiculties and disadvantages as above mentioned, andto this endthe invene tion, in one aspect, provides novel means, whereby'the'resistance to the: operation of a machine, if excessive, may be readily and quickly decreased, for example, if the ma- 0 chineis stopped under conditions such as PATENT O- E:

. moor; c. JORGENSEN, or BEVERLY, MASSACHUSETTs, 'AssIeNon a pease siron MACHINERY CORPORATION, or rarnnsom vnw :rnnsnY, A CORPORATION on NEW MACHIDIE FOR ornm'rme 01v: sHons 1930. Serial No. 465,940.

described, so that the machinemay complete its movements and return the parts to their startingv positions. For the purpose in view, as herein illustrated, a bell-crank lever whereby both thejack and' the; heel band are operated to clamp the shoe is: so constructed that one of its arms comprises two relatively movable parts which are normallyheldin a fixed relation to each other but may be manually disconnected to; permit relative movementbetween-them such as to relax the pressure on the shoe and thus permit-the shoe to yield so that the wipers can complete their operative movements. In the construction shown, moreover, automatic means; is provided for restoring the two parts of" the lever to their normal fixed relation to each other in the continued operation of the machine. 7 W

Thenovel features of the invention, in-

cludingvarious novel details of construction and combinations of parts, will now bemore particularly described by reference 'to the accompanying drawings and pointedout in" the claims.

In the drawings,

- Fig. 1 is a view,partly in side elevation and partly in vertical section, of a portion of a machine in which the invention is em bodied, illustrating the positions of the a parts when the machine is stopped by abnormal resistance to the movement of the wipers' V i F ig. 2 is a view inside elevation ofthe mechanism provided for purposes offlthis invention and; portions of the machine associ'ated therewith, with the parts in their nor-: mal starting positions; Y

Fig. 3 is a viewin front elevationfof the parts shown in Fig.2; a

Fig. 4 is aview similarto Fig. '2, but illustrating the positions of the parts when the pressure .ona shoe has been relaxed by the novel mechanism provided; and

Fig. 5 is a viewspartly in plan and part- 3 "ly in section showing the mechanism for j operating the heel band togclamp the'shoe.

lllacliines; of the typeillustrate'd comprise in their organization heel-lasting wipers 1O which are .moved length-wise and laterally herein shown are constructed as disclosed in Letters PatentNo. 1,852,015, granted upon an application of mineon April 5, 1932. The wipers areoperated by a path cam 14 formed a cam wheel 16 fast on a shaft 18,

through connections including a roll 20 and a slide 22, as more fully disc-losed in the lastmentioned Letters Patent. 7

Theshoesupport or. jack comprises a holdor 24 mounted for swinging movements abouta shaft 26*rotatable in bearings in the frame of the machine, and a provided with a pair of pawls arranged to enga e a ratchetwheel 42 which is "faston the shaft for turning thejpinion 36 and thus raising the jack post 28. By this mechanism the heel-seat face of the shoe is pressed against a holddown 44-wh1ch determines 'ad ustablythe height of the shoe and accordingly the relation of its '-heel-seat,

face tothe'plane of the wipers 10. For imparting' to the pawls 40 their operative movement there is connected to the pawl carrier 38 a rod 46 onthe upper end ofwhich is secured a cylindrical member 48- whlch serves as ahousingfor a spring 50 interposed between the upper end of the member 48 and a plunger 52 on the lower end of rod 54 which is slidable in the member 48. The rod 54 at its upper end is 0011- nected to abell-crank lever 56 provided with a gear sector 58 engaged by rack teeth formed on the lower face of a slide 60 pressedforwardly by springs 61, this slide having other rack teeth on its upper face V engaged by an operating pinion 62 which is formed on a shaft 64, 'The shaft 64 is arovided" with another pinion 66 en ao'ed L b o J by a gear sector 68 formed on one arm of a bell crank lever 70 fulcrumed at 72 on the frame of the machine, the other arm of this bell-crank-lever, constructed as more particularly hereinafter described, being provided' with a roll 74 (Fig. 3) engaged 'bv' a cam facet; on the cam wheel'l6j It will thus be seen that through the connections described thejack post 28 is operated to The wipers and the as-' post 28 movable upwardly and downwardly in the hold-V er and provided at its upp'erfend-with a pin 30 which enters'the spindle hole in the last.

press the shoe yieldingly against the hold down 44, the spring 50 being compressed more or less in this operation.

In addition to operating the jack post 28 as above described, the movement of the slide 60 is also utilized to impart rearward movement to the jack and'thus to press the heel end of the shoe againsta heel band 78,

and also to close the heel band inwardly against the opposite sides of the heel end of the shoe. For imparting rearward movement to the jack the bell-crank lever 56 is connected by a link to a pawl carrier 82 provided with a pawl 84 in engagement withv a ratchet wheel 86, the ratchet wheel being connected to a pinion 88 which operates a rack bar 90 connected to the holder24 of the jack, as more fully disclosed in Letters Patent No. 1,583,044. For operating the heelband, as also disclosed in said Letters Patent,-the slide 60 acts through a spring 92 upon a rod 94 provided with a cross bar 96, (F ig. 5) in engagement at its opposite ends with rack bars 98, each rack bar being operatively connected with a' lever which is connected in turn by a link 102 to an arm 104 provided with means for pressing the heel band against the side of theshoe.

In the use of the machine constructed as thus far described the operator first mounts a last and shoe on the heel pin 30 and then swings the jack rearwardly as fargas he can conveniently by hand to carry the shoe into the heel band 78, at the same time raising the jack post 28 to carry the heel-seat face of the shoe against the holddown .44 by the operation of a treadle (not shown) which acts on the lower end of the rod 32, as more fully disclosed in Letters Patent No. 1,558,- 737. Thereafterhe trips the clutch to start the power operation ofthe machine. In the normal operation of the machine the cam shaft 18 makes a complete revolution at the end of which the machine is brought automatically to a stop with all the parts in their starting positions. During this operation there is first imparted yieldingly to the jack a rearward movement through the pinion 88 and the rack bar 90 to carry the shoe farther into the heel band by mechanism not herein shown but fully disclosed in Letters Patent No. 1,583,044, and at the same time the holddown 44 is depressed somewhat to I position the heel-seat face of the shoe in a predetermined relation to the wipers. Thereafter the slide 60 is operated to press the shoe still more firmly against the heel band and against the holddown and also to close the heel band against the opposite sides" of the shoe, whereupon the wipers are on erat'ed to wipe the margin of thelupper in wardly over" the heel seat. Thewlpers are then retracted from over the heel seat and a further movement is imparted to the slide 60 to clamp the'shoe' still more firmly in the heel band and also to raise 'it'a little higher than before, the holddown 44being' raised slightly to permit this upward movement of'the shoe; A second operative movement is then imparted to the wipers to wipe the upper more firmly over the heel seat, after which the tacks are driven to fasten the upper, the parts of the machine then being returned to their startingpositions.

At the time of the second operative move- 1 ment of the Wipers it may happen, in case the holddown 44 is so adjusted that the shoe is positioned a little higher than it should be, that the resistance of the shoe to the movement of the wipers will cause the machine to come to-a stop without comple"- ing its cycle. In that event it has been necessary heretofore for the operator, after releasing the clutch to disconnect the machine from the source of-power by the means disclosed in Letters Patent No. 1,583,044, to operate'the machine manually throughthe remainder of its cycle; This, as -above stated, is a slow and diflicult operation, and involvesdanger of damaging the shoe or, of

breaking some part of the machine. T

eliminate the necessity I for such manual operation of the machine with the disadvantages involved, the machine herein shown is so constructed that the pressure with which the shoe is clamped and held may be relaxed sufliciently to permit the shoe to yield heightwise under the pressure of the wipers and thus permit the machineto complete its cycle automatically. Forthe purpose in' view that arm of the bell-crank lever 70 which carries the roll- 7 4 is made in two parts 106 and 108, thepart 106 being inthere is provided a handlever 118 fast ona rock shaft 120 which is mounted in a bracket 122 secured to one side of the lower arm of the bell-crank lever 70 and extends the lower end of the latch 112 and thus to' disconnect the latch from the plate 114 when the lever 118 is swung toward the right, as

- illustrated in Fig. 4. :Suclrmovement of the hand lever 118 is effected against the resistance of a torsion spring 126 which acts to return the hand lever to its normalposition as soon as the operator releasesit, the

normal position of. the lever being determined by a pin 128. on thebelL-crank lever 7 Din engagement with one of the cams 124;

' It'will be understoodthat Whenthedatch i 112 is disconnected from the Platee114by the movement "of (I the'hand lever 118, as above described, the operative connection I between the parts 106 and108of'the'upwardly extending arm of the bell-crank lever is broken, so that the cam face 76 no longer has any effect ,on the lower arm of the bellcrank'lever, and consequently the: slide 60 isrelea'sed so that the parts controlled thereby for pressing the shoe up against theholddown and rearwardly againstthe, heel band and for alsopressingthe heel band against theopposite sides ofthe shoe are no longer effective to applyany substantial pressure to the shoe. As aresult ofexpansion ofthe springs 50', 61 and 92'the parts 'ofthe bellcrank lever 70 assume relation to each other such asnillustrated in Fig. 4. Al though the shoe is at this time still under control of the means hereinbefore referred to whereby itis pressed yieldingly against the heelfband prior to the operative'movement of the slide 60, the pressure-with which the shoe is held is nevertheless so far relaxed that it is rea'dilyyieldable downwardly in response to thepressure of the wipers there on, and accordingly the machine will immediately. complete its cycle of operative movements as soon as the'latch 112 is dis connected from the plate 114 as described, Under these conditions the *lasting tacks will usually be driven only part wayinto the shoe, so that" they may be readily removed. to permit'the lasting of the heel end of the shoe to be repeated after-proper adjustment'of the holddown 44. P

The part 108 of the upwardly'extending arm of the bell-crank lever --7 0' is controlled by a torsiorrspring130which tends to'.-1 eturnit into its normal relation to the part 106, such return movement being limited by a shoulder-131 on the part 106, and between the two partsa pin and slot " connection 132, 134 is provided to limit relative movement of the parts out{ of their normal operative relation and thuspreventdanger of excessive strain on the spring a 130. By reasonof the action of the spring 130 the'part108 is returned automatically into its normal-relation to the part 106 as soon as such return movement is permittedby the 0511111 210676 in the continued operatioii ofathe machine,

the latch 112 thenbeing returned to its operative holding position by its spring 116. The parts of the mechanismare thu'sire stored automatically to their normalrelation to one another without any part of the operator.

Having thus described 7 attention "on my invention, what I claim as new and desire tosecure by Letf ters Patent of 'the United Statesis: Ina lastingmachine, the combination with: means) :forfllasting a shoe, of" automatic ers to relax. the clamping pressure on the shoe sufficientlyfto permit themachine to complete its cycle, :2 a

'- 17.111 a heel-endelasting machine, the com- 'mechani sm for controlling the shoe, a. por;

tion of said" mechanism being displaceable to interrupt its control of the shoe in the event of abnormal resistance of the shoe to the movementof the lasting means.

2. In a power-operated lasting machine, the combination with means for lasting a shoe, of mechanism movable automatically to clamp' the shoe after the starting of the power operation ofthe machine, a portion of said mechanism being displaceable to relaX the clamping pressure on the shoe in the event of abnormal resistance of the shoe to the movement of the lasting means.

3. In a lasting machine, the combination withtmeans'for lasting a. shoe, of a powerdriven cam, mechanism operated by said cam for controlling the shoe in the lasting operation, and means for rendering said mecha to the operative-movement of the wipers, to decrease that resistance sufliciently to permit the machine to complete its cycle.

5. Inaheel-end-lasting machine, the combination with heel-lasting wipers movable in an automatically determined :cycle of operations ofthe machine torwipe the margin of the heel end of the upper of a shoe-into lasted position, of automaticfmeans forcontrol- I ling the shoe, said means'includingparts v relatively movable out of their normal operative relation to each other afterengages ment of the wlperswlth the shoe to -decrease the resistance of theshoe to the operative movementof the wipers in the event of abnormal resistance to such movement.

7 4 v6. In a heel-endTlasting machine, the combination with heel-lasting wipers movable in an automatically determined cycle of operations ofthe machine to wipe the margin of V the heel end ofthe upper of a shoe into lasted'position, o l' means for clamping and holding the shoejfor the operation of said wipers, said meansincluding parts relatively movable .out of their normal operative relation to each other, if the operation of the machine is stopped by abnormal resistance of the shoe to the operative movement of the wipbinationwith heel-lastingwip'ers movable in an automatically determinedcycle of op"- erations of the .machine to wipethe margin of the heel end of the'upper of a shoe into lasted position, of a shoe support anda hold- 7 down arranged to clamp a shoe between them for theoperationof said wipers, and

mechanism forrenderingthe shoe support ineffective to maintain the shoe against the holddown arranged to clamp a shoe between them for the operation ofsaid wipers, and automatic means for controlling said shoe support in the normal operation or the machine, saidmeans including parts relatively movable out oftheir normal operative relation to each other to permit movement of the shoe in a direction away from the holddown if the operation of the machine is stopped by abnormal resistan cc of the shoe to the moves ment of the wipers.

9. In a heel-end-lasting machine, the comination with heel-lasting wipers movable in an automatically determined, cycle of operations of the machine to wipe the margin of the heel end of the upper of a shoe into lasted. position, of a shoe support and a heel band for positioning and holding the shoe for the operation of said wipers, and mechanism movable at the will of-the operator, if the. stopped by abnormal resistance of the slips to the operative movement ofthe wipers, to relax the pressure of, (the heel bandwon the shoe and ,to 'render the shoe support inefiec tive to o maintain the shoeat its normal heightf 1 110., In a heel-end-lasting" machinef the combination with heel-lasting wipers movable 1n an automaticallydetermined cycle of operations of the machine to wipe the margin of the heel end ofthe upper 01": a shoe into lasted-pos1t1omof ajack for sup porting the shoe for the operation'of said wipers, a holddownfor engaging the bottom I of the heel end of the shoe, a heel band for embracing, the heel end of the shoe, and

mechanism for operating the jack to press the shoe against the holddown and against the heelband, said mechanism comprising parts'relatively movable'out of their normal l peration of the machine is" operative relation'to each other to relax the,

pressure of the shoe on the ho'lddown and on the heel ban'd intheevent of abnormal resistance of the shoe to the movement of th wipers: iii

1. In a heel-end-las'ting machine,

combination with heel-lasting wipers mov able in an automatically determined" cycle of operations of the machine to wipe the margin of the heel'end of theupper of a shoe into lasted position, of a shoe support and a heel band for positioning and holding the shoe for the operation of said wipers, and automatic means for controlling said shoe support and heel band in thenormal operation of the machine, said means comprising a device connected both to the shoe support and to the heel band and movable at the will of the operator, if the operation of the machine is stoppedby abnormal resistance of the shoe to the operating move tion to each other to decrease the resistance mentor the wipers, to'relax the pressure of the heel band on the shoe and to renderthe shoe support ineffective to maintain the shoe at its normal height.

12. In a heel-end-lasting machine, the combination with heel-lasting wipers movable in anautomatically determined cycle of operations of the machine to wipe the margin of the heel end of the upper, of a shoe.

into lasted position, of mechanism including a lever for controlling the shoe, said lever comprising partsrelatively movable out of their normal operative relation to each other to decrease the resistance of the shoe to the operative movement of the wipers in the event of abnormal resistance to that move ment.

13. In a heel-end-lastingmachine, the combination with heellasting wipersmovable in an automatically determined cycle of operations of the .machinetowipethe mar gin of the heel end of the upper of a shoe into lasted position,.of mechanism including a lever movable to clamp the shoe, saidlever comprisingparts-relatively movable out of their normal operative relation to-each'other to relax the clamping pressure on the shoe if the shoe opposes abnormal resistance to the movement of the WIPQI'S' I I V 14:. In a heel-end-lasting machine, the

combination with heel-lasting wipers movof the shoe to the operative movementof the wipers if the resistanceis such as to prevent the completion of that movement. 1

15. In a heel-end-lasting machine, the combination with heel-lasting wipersmovable in an automatically determined cycle of operations of the machineto wipe the marginof the heel end of the upper of a shoe into lasted position, of mechanism including margin of the heel-end alever for controllingthe shoe, saidlever comprising parts relatively movable out of their normal operative relation to each other to decrease the resistance of the shoe to the.

operative movement of the wipers if the v resistanceis suchas tovpre ven't the compl etion of .that movement, i ranged vto-maintain the parts of-the. lever in their "normal relation ,to each, other but;

(lisplaceable at the'Will of: the operator t o permit their. relative movements 16.. In a heel-end-lasting machine,

combination with heel-lasting wipers movand a device arable in an automatically.determined cycle of operations of the, machine; to wipe the margin of the heelend'of the upper of a shoe intolasted position, of mechanism m0v-,

able after engagement of the wipers, with the shoe to de crease the; resistance ofkthe shoe to the operativemovement of the Wipers if the resistance, is such as to prevent the-completion'of thatmovement, and automatic means for restoring said. mechanism to its normal condition. prior to the next operation of the machine on a shoe.

117-. In a heel end lasting" machine, the

combination with heel-lasting wipers movable in an automatically determined cycle of operations of the machine to wipe the margin of the heel end of. the upper of a shoe into lasted position, of automaticmechanism for controllingthe shoe in theinorma]. operation of the machine, said mechanism comprising partsrelatively movable out or" their normal operative relation'fto eachother, if the operation of. themachine isstopped by abnormal resistance of the shoe to the operat've movement off-the wipers, to decrease that resistance sufficiently to permit the rmachine to complete its cycle, and automatic meansv forrestoring said parts to'their normal relation to each other. 18.;In, a .heel-end-lasting machine, the combination l with heehlasting wipers mov able. in an automatically determined cycle of operations of the machine to wipe the of the upper of a shoe-into lasted position, ofautomatic mechanism for controllingthe shoe in the normal operation of the machine, said mechanisnrcomprising a lever having parts rela tively movable out of their normal operativezrelation to each other, if the operation oiv the machine is stopped by. abnormal resistance of the shoe to the operative move returning said device to 1115 holding position.

.19. In amachine for operating on shoes,

device for normally 7 the combination with means for operating on a shoe in an automatically 7 determined cycle of operations of the machine, of means displaceable from its normal operative position, it the operation of the machine'is stopped by abnormal resistance of the shoe to the'mov'ement of said operating means, to. decreasethat resistance sufiiciently to per mit the machine to complete itscycle.

20. In a machine for operating on shoes, the combination with means for operating on a shoe in an automatically determined cycle of operations of the machine, of automatic mechanism for controlling the shoe in the normal operation of the machine, saidmechanism comprising parts relatively movable out of their normal operative relation to each other to decrease the resistance of the shoe to the movement of" said operating means if the resistance is such as to mechanism comprising parts relatively movable out of theirnormal operative relation to each. other to release the shoe supportif the shoe opposes abnormal resistance to the movement of said operating means.

'22. In amachine for operating on shoes, the combination with means for operating on a shoe in an automatically determined cycle of operations of the machine, of mech anism :tor'controlling the shoe in the normal operation 'ofthe machine, said mechanism comprising a lever having parts relatively movable out of their normal operative relation to each other to decrease the re sistance of the shoe to the movement ofsaid operating means if the resistance is such as to preventthe completion of that movement. "23. In a machine for operating on shoes, the combination with ,means for operating on a shoe-in an automatically determined cycle of operations of the machine, of mechanism movable after the beginning of the operation of the machine to decrease the resistance of the shoe to the movement of said operating means if the resistance is such as to prevent the completion of that movement, and automatic means for restoring said mechanism to its normal condition priorto the next operation of the machine ona shoe. 24. In a machine for operating on shoes, the combination with means for operating on ashoe' in an automatically'determined cycle of operations of the machine, of automatic mechanism for controlling the shoe in the normal operation of the machine, said mechanism comprising parts relatively mov able out of their normal operatlve relation prevent to each other, it the operation of the 7 the'combination with-means for operating 7 on a shoe, of mechanism movable man auto-v matlcally determlned cycle of operations of the'machin'e tocontrol the shoe, a portion of said Il'lGCllELlllSHl' being dlsplaceable from its normal operative position at the will of the operator after the beginning ofthe- 'operationot the machine'on the shoe to'interrupt its control of the shoe' 26. In a' machine for operating onl shoes,

the combination with means for operating on a shoe,of mechanism movable in an automatically determined cycle of operations of themachineto clamp and hold the'shoe' independently of said operating means, said mechanism comprising parts r latively movable out of their normal operative' rel'ation to each other at the will of the operator after the clamping of the shoe to relaxthe clamping pressure. f p 27. In a machine for operating on shoes, the combination with means for operating on a shoe, of mechanism movable in an auto matically determined cycleof operations of themachine to control the shoe, said mechanism comprising parts relatively movable out of their normal operative relation to each other at the will of theoper'ator after the beginning ofthe operation of the machine on the shoe to interrupt their control of the shoe, and automatic means for restoring said parts to their normal relation to each other: prior to the next operation of the machine on a shoe. v

28. In a machine for operating onfshoes, the combination with power-operated means movable to operate on a shoe, of mechanism movable to clamp the shoe in a predetermined relation to said operating means, a portion of saidmechanism being displaceable to render the shoe yieldable to the action'of said operatingmeans in the event of abnormal resistance tothe operationof said means. W (V I Q 1 r V 29 In a machine for operating "on shoes, the combination with means for operating on afshoe, of shoe-controlling mechanism, acam for operating said-mechanism, and

means for interrupting the operative relation between said cam and the shoe-controlling mechanism 1n the event of abnormal resistance of the shoe to the'movemen't of J said operating means.

' In. a machine for operating on shoes, the combination with means for operating on a'shoe, of a cam and mechanism operated thereby for controlling the shoe, said mechanism comprising parts relatively movable at the will of the operator out of their normal operative relation to each other between the beginning and the end of the operation of the machine on the shoe to interrupt their control of the shoe.

31. In a machine for operating on shoes, the combination with means for operating on a shoe, of mechanism for controlling the shoe comprisinga lever having parts relathe machine continues its operations, and

means for normally maintaining said parts in a fixed relation to each other throughout the operation of the machine.

33. In a machine for operating on shoes, the combination with means for operating on a shoe, oi power-operated cam mechanism for automatically clamping and holding the shoe independently of said operating means, said mechanism comprising parts relativelymovable outv of their normal operative relation to eachother at the will of the operator after the clamping of the shoe to relax the clamping pressure.

34. In a machine for operating on shoes,

the combination with means for operating on a shoe, of power-operated mechanism for clamping and holding the shoe automatically' for the operation of said means thereon, said mechanism comprising parts relatively movable out of their normal operative relation to each other between the beginning and the end of the operation of the machine on the shoe to relax the clamping pressure, and means normally operative to maintain said parts continuously in their normal relation to each other throughout the operation of the machine but displaceable to permit their relative movement. 35. In a machine for operating on shoes, the combination with means for operating on a shoe, of mechanism for clampin and holding the shoe for the operation 0 said means thereon, said mechanism comprising a lever having parts normally in fixed relation to each other throughout the operation of the machine but relatively movable out of their normal relation to each other after the clamping of the shoe to relax the clamping pressure it the shoe is improperly positioned.

36. In a machine for operating on shoes,

the combination with means for operating on a shoe, of mechanism for clamping and holding the shoe for the operation of said.

means thereon, said mechanism comprising a lever having parts normally in fixed relation to each other throughout the operation of the machine but relatively movable out of their normal relation to each other after the clamping of the shoeto relax the clampingpressure if the shoe is improperly positioned, a latch for maintaining said parts in their normal relation to each other, and a member movable to displace said latch from its operative position.

37. In amachinefor operating on shoes, the combination with means for-operatingon a-shoe, of mechanism for clamping and holding the shoe for the operation ofsa-id means thereon, said mechanism comprising aficamoperated bell cranlr lever provided withtwo pivotally connected parts relatively movable at the will of the operator after the clamping of the shoe to relax the clamping pressure, and a member arranged normally to, hold said parts in a fixed r'elation to each other but displaceable to. permit their relative movement. I

38. In a machine for operating on shoes, the combination with means for operating on a shoe, of a holddown for engaging the bottom of the shoe, a ack movable to press the shoe against the holddown, a clamping band for embracing an end of the shoe, and a member for controlling both the jack and the clamping'band, said member having parts relatively movable out of their normal relation toeach other to relax the pressure of the shoe on the'holddown and the pressure of the band on the shoe; f

39. In a machine for operating on shoes,

thecombination with means for operating on a shoe, of a holddown for engagmg'the bottomof the shoe, a .jack movable to press the shoe against the holddown, a clamping.

tivelymovable out of their normal, relation to each other to relax the pressure of the shoe on the holddown: and-thepressure of the band on the shoe, and a device arranged, normally to maintain said parts ina fixed relation to each other but displaceable to 1 permit their relative movement. 7

In testimony whereof'I have signed my nameto this specification.

JACOB o. JoReENsEN.

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