US1273324A - Machine for operating upon boots or shoes. - Google Patents

Description

IVI. BROCK.

IVIIICIIIIIIE Foa OPERATING UPON BOOTS 0R SIIGES.

APPLICATION FILED JUNE I0. ISII.

FatenteII .IIuIy 23, 1918.

4 SHEETS-SHEET l.

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MAcHlNE FOR OYPERMING UPON Boots 0R SHOES.

APPLlcATxoN HLED JUNE loK |914. n n W u Mmmm July 230, 191%.

4 BHEETSWSHEEY 2.

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'MACHINE FOR OPERATING UPON oos "on SHOES.

APPLICATION FILED JUNE I0. 1914-. l

M937 @93ML Pzmmed my 9.3, 19%.

4 SHEETS-SHEET 3.

WMU-@$5551 M. BROCK. NlACHfNE FUR'GPEHATING UPGN BOOTS 0h SHOES. APPLICATION FILED sume 1o` 1914.

www@ my 1918.

l SHEETS-SHEET 4.

are the provision of means for confining the heel of the upper upon Vthe heel shaped form While the forepart of the upper is being operated upon by the orepart stretching means, the provision of means for shaping the heel seat during the stretching operation, and the provision ot' means for initially adjusting the stretching term to lill the upper before the operation ot the mechanism by which the stretching form is expanded.

Other objects and important features of the invention will appear from the following description and claims when considered Iin connection With the accompanying d 'awings.

In the accompanying drawings,

Figure Lis a side elevation ot' a machine embodying the inventiong' Fig. 2 is a rear elevation;

Fig. 3 is a perspective view of: one of the stretching mechanisms with parts broken away to show parts otherwise hidden from View;

F ig. 4t is a perspective view of one of the expanding forms;

Fig. 5 is a longitudinal section of one of the expanding forms in contracted condition;

Fig. 6 is a section similar to Fig. 5, but in expanded condition;

Fig. 7 is a perspective view ot the shoe before stretching; and

Fig. 8 is'a perspective view ot the shoe shown in Fig. 7 after stretching.

The illustrated machine is preferably provided With two pairs of stretching` mechanisms in order that one pair oshoes may be allowed to set to its stretched condition While another p air of shoes is being placed upon the forms by the operator. Moreover the two mechanisms` are preferably constructed to operate upon different ranges ot' sizes of shoes whereby the total size range of the machine is considerable. T he stretching mechanisms of each pair are preferably operated simultaneously.

After the shoe has been located upon the form, morder that the shoe may not be torn during the stretching, the operation of the machine is comparativelyv slow, the driving means comprising a main driving` shaft 2 mounted in bearings in the trame 3 and driven 'by connections from a power shaft to the pulley 5. From the driving shaft motion is transmitted to one or the other ot two cam shafts 4 through a pinion (S and a comparatively large gear S, the pinion (l being arranged to be clutched to the driving shaft 2 'by a suitable clutch mechanism, for ex- 'amp1e, a pin clutch rendered operative by a v Spring 10, and moved into 'releasingposition -loy the action 'of a Wedge 12 upon a stop member 14 carried by the pin slide, said stop member 14e being arranged to cooperate with a stop shoulder 1G upon an arm 1S ot a three-armed lever iulcrumed at, 20 between brackets 22 formed upon the frame Il. The stop member ltl only goes into operation in the event that the shatt 2 continues to rotate after the clutch has been rendered inoperative by the action of the wedge l2 upon the stop men'iber l-l. A second arm fil oi the three-armed lever is connected b v a link 2G to a treadlc 28 lulrrumed at' il() in the base of the machine, whereby the clutching` of the gears G, S to the power driven sha'tt 2 may be controlled by the operator. To prcvent thc unclutching ot the parts before the stretching mechanism has completely por- 'ormed its stretching function, a cam 3; is provided upon each ot the cani shafts l. the cam 32 acting upon one arm ot a bell crank, the other arm 8U ot which is connected by a link 38 tothe third arm 4() ot the three-armed lever, the` cam 32 being so shaped that when the wedge 12 has been turned into clutch actuating position it will be maintained in this position until the shaft i has made such a part of its rotation that the stretching mechanism has conipletcd its stretching operation. The stretching mechanisms are operated from cams upon the shafts il', and cach mechai'lism comprises a standard 42, o't' substantiallyv bootleg shape, open at its side remote from the operator and provided with a base -l-l bolted to a table 4G formed upon the trame il. and a iorepart form which extends away from the operator, the heel torni 4S being` integral with the standard 42. The lorepart form comprises two members 50 and f2 pivotally connected at their for ard ends by means y of a substantially vertical pivot stud 54 car- .ried by a slide 56 by which the two members 50 and 52may be moved together toward or away from the heel form 48. The members 50 and 52 are arranged to swing toward and away from each other aboutthe pivot stud 54, and moans is provided whereby their movement to effect' an extension of' the i'orepart form is simultaneous with their movement away from the heel form. The illust 'ated means comprises cam slides 5S and (30 formed in a stationary supporting and guiding arm (S2 carried by the standard 42v and connected to the heel form part. of said standard. The guiding and supporting arm G2 is received in grooves (i4 and GG in the respective members a0 and 52, whereby these members are guided both in their longitudinal and in their lateral movements. and pins (itl and 7U upon the under sides of the mem- Abers 50 and 52 depend into the ram slots 5S and 60, said slots being so shaped that as the slide 5G carries the forepart torni away fromthe heel form the members 50 and 52 more away trom each other about thc pivot stud 54.

Means is provided for e'fectng the moreremesa ments of the slide through which the longitudin'al and lateral movements ol' the members 50 and 52 are produced, the illustrated means coi'nprisinn' a bell crank t'ulcrluned at 72 in the heel form 48 and having one arm Tl; received between slotted dependingr ears 76 upon the end ol the slide 5o which cxtends within the heel form, trunnions i8 (sce Fig. 3) upon said arm T4 beine' receivetl in the slots in the ears 76. The other arm 80 of the bell crank is connected by a link 82 to'a lever 841 between the iiulciuin 86 ot' said lever and the point where said levi-r is acted upon by a cam 88 toi-med as a cam groove in a cam disk 90, the lever 841 carry ing' a cam roll 92 which travels in said cam groove. The lever 84 is fulcrnmed upon the 111,9; 94 formed upon a slide 06 arranged to slide in vertical guides 98 in the iront of the machine, whereby the tulcrum end oi? the lever 84 may be raised or lowered` The initiail position of the forepart torni with relation to the heel. form may be adjusted before the mechanism for automatically el ecting relative movement of these iorms is actuated. By thisadjustinent the stretch.- ing mechanism may b e adjusted to dil'erent sizes of shoes, and the shoe may be brought into substantially taut condition before the stretchingr operation begins. T here is one slide 96 for each pair of stretching' mechanisms, whereby simultaneous and equal adjustments of the two mechanisms olf either pair is effected by a movement et its slide 96 in either direction. rllhis is in'lportant, in combination with the positive and equal stretching movements of the two mechanisms of each pair; in making the two shoes of a pair of equal size.

The raising and loweringA ot the slide 06 is effected in the illustrated machine by connections to a hand lever 100 located tor convenient manipulation by the operator, said lever beinpr tulerumed at 102 upon the bracket clamp upon the table 16, and being connected by a link 10-1 with the slide 96. To secure the slide in its different positions of adjustment the lever 100 is provided with a locking;f pin 106 arranged to enter any one of a series of holes 108 arranged along the path of travel of the piu 106, the pin beiner springr pressed toward locking position, and beine,r arranged to be withdrawn by means of a finger lever 110 fulcrumed upon the end of the lever 100. 'l`o facilitate the proper adjustment of the stretchingI mechanism to diierent sizes of shoes, through the raising and lowering ot the slide 96, a series of indieations 111 is preferably provided for the holes 108, whereby the operator, by setting the lever 100 so that the locking' pin 106 will enter a hole 108 which has ladjacent to it an indication corresponding to the size indication, tu', perhaps, some code mark upon the shoe to be stretched, may etl'ect the proper adjustment oi' th e machine ior a shoe of that size.

'l`o insun` the proper location oi the heel end ol' the shoe upon the heel lorm and to prevent its luchar-drawn over -said toi-m or out oi' position during' the stretching` operalion. means is provided ior holdin,"r the heel end ol' the .shoe down upon the upper l'aic olt the `lcel i'orm, said means4 also preferably com|nisin, means 'l'or pressing' llnrear end ol' the heel up against the heel form. The 'illustrated heel locating` or hold-down mechanism comprises a member having' a part 112 arranged lo engage the bottom tace ot the heel end ol' the sole o'lf the shoe lo be stretched, and lo press said solo down upon the upper tace oi' the heel i'orm, said part being` preferably so shaped that il tends to mold theshoe tothe l'orm; and another part, 114- carrying a protectingl pad 116 whereby it may engage and press the rear end of the heel oi the shoe against the heel form, or may serve simply lo locate the part 112 in proper position over the bottom of the shoe. The hold-down member has dependingf cars 118 rigidly connected to arms 120 which are connected together at their lower ends by means ol' a rock sha'l't 122, Fig. 8, extending' through slots 121- in the standards 112 whereby said rock shalt has provision for limited vertical movement with the holddown members. il. spriug126, Figi: 2, keeps said rock sha'l't normally at the upper limit o'l its niovcmeni. '.l`he downward movement o1 said rock shaft whereby said hold-down member is brought intoengagement with the bottom oi the sole, is etl'ccted auton'iatically through connections to a cam groove 128 -l'ormed in the i'ace of the cam 00 opposite to that; in which the groove 88 is torn'ied, said connections con'iprisinnl an adjustable link 180, connected to one arm of a bell crank 182, the other arm ot' which carries a cam. roll 1311 received in the cam groove 128.

1t will bc noted upon inspection oi the drawings that the hold-down member has a iurther important .function when the machine is operating upon shoes of the type herein shown, which have out-turned flanges at their heel ends. rlhese out-turned iianges are stitched down upon the insole before the shoe is placed upon the form of the stretchinn machine, and it the stitching' is at or inside the flange line difliculty is sometimes experienced in drawing the upper down upon the heel -l'orin. The contour of the stitching in such cases being somewhat smaller than the contour of the heel seat tace of the heel form there is a tendency ot the insole to assume a concave shape when the heel end of the upper is forced down upon the heel form. To counteract this tendency and to force the heel seat end of the insole into its proper shape the hold-down is con-A caved in the opposite direction so that it tends to turn the projecting edges OLt the insole and the out-turned iiange of the upper down over the sides of the heel form. It will thus be'seen that the--hold-down restores the heel scat end of the insole oi. the shoe to its proper shape at the saine time lthat it is forcing the shoe down upon the heel form so that it will not he drawn torward during` the stretching operation. l The operation of the machine is as tolows:

The parts being in the position shown in Fig. 1 and the treadle 28 being maintained in its elevated position by. a-spring 29, the operator places'a shoe upon each of the pair oi forms of the stretching mechanism upon one side of themachine, moves the holddown into position to bring' the part 112 over the bottom of the sole, andthepad 11G against the rear vtace as shown in Fig. sof the drawings, and then grasps the handle 100, presses the finger lever 110 toward the handle 100, and lowers the slide 9G until the forepart form has entered well into the toe end of the shoe, and has drawn the rear end of the shoe tight up against the heel form, or if the machine is to he adjusted with reference to definite sizes the operator will lower the slide unt-il the handle 100 is in such position that the pin 10G will enter a hole 108 having adjacent thereto an indication corresponding to some mark upon the shoe orwhich the operator knows will set the machine for a shoe of the size and kind to be operated upon. He then depresses the tre-edle, thereby clutching the pinion 6 tol the shaft 2 and thus' causing the cam shaft' it to r'tate.

As soon as he has caused the pinion (i to be clutched to the shait 2 he releases the treadle and the shaft et will be rotated suhstantially half annotation or until the cam S2 permits the bell crank 34, 36, which con* trois the position of the Wedge l2, to release the wedge', which, under the action oit the spring 29, will again come into its clutch releasing position. This leaves the stretching mechanism in its expanded condition, andthe operator will ordinarily leave the shoes upon this side of the machine upon the stretching mechanism while he is placing a pair of shoes upon the stretching forms on the other side of the machine. When he has placed the pair of shoes upon the forms .upon the other side of the machine he will ordinarily depress the treadle upon that side of the lmachine to actuate the mechanism to stretch the second pair of shoes, and will immediately thereafter depress the treadle on 'the side of the machine upon which-the first pair of shoeslhas been placed, to cause the stretching mechanism to move into its collapsed condition, thus permitting him to remove the shoes, and place another pair ci Shoes unen. thissde While the second. pair stretching` means of shoes is being allowed to set io its stretched shape on the other side orf the machine. y

Having described my invention, what l claim as new and desire to sec re by Letters `latent of the United States is:-

erating said stretching- ,n'ieans a predetermined amount.

3. n a machine of the class dcscrihcih means for stretching,` a shoe having' a uni form amount of stretchiiugy univeincnh and means for adjusting said. stretcl'iing; means for the size to which the shoe is i he stretched before the actuation ot said stretching means.

4t. A shoe stretching machine connu-innig: having a determined amount of stretching; movement. means iur effecting an initial adjustment ot said stretching means for the size to which the shoe is to be stretched, and power operated means for operating said stretching nir-ans to stretch the shoe to thc predeterniined larger size.

5. A machine for stretching and shaping` a. shoe comprising an expansibie shoe toi-n1.

-means for expanding said torni to till the slice, and power operated means for expanding said form a predeterinined amount'. a ii er said initial expansion.

6. ln a machine of the c ass lescrilieih means for stretchii'igr a shoe, means te. open ating said means hy poner to a predeiermined extent, and means for initially :idjusting said stretching means to :i variable point haring fined relation lo Vthe 'l t ci? the predetermined. strctchiup,` n'iorenunii.

ln a machine of the class described, shoe stretching` means, means tor operating said stretchingF means, und means operating through the connections :tween said s reir'fi-- ing means and its operating i'neans 19m' etfectinf an initial adjustment of said streit-ln ing means to suit it to the size et the shoe to be stretched.

8., in a machine oi shoe stretching; means conetructcci "1' .1 the shoe both longitndinelly :ind z means tor 'imparting' io said sirius" means a uniform an'iount of str ment, and. means for effect tudinal and a lateral stretchingmeans to thc before the actuation mtbtls.

terasse 9. lin ai machine of the class described, means for stretching a shoe and means arranged to operate the stretchingmeans and automatically to stop the stretehii'ig means when the prec'letermined amount of stretching movement has been reached.

10. Shoe stretching means constructed and arranged to be initially adjusted to the size of the shoe and to expand from said adjustment to stretch the shoe, means for operating said stretching means, and means operating automatically to stop the operation of said stretching means at the end ot' the stretching movement. l

11. A machine for stretchingand sha ping a shoe comprising an expansible shoe 'toi-m, means for expanding said form to fill the slice, and means for automatically eiipanding said form a predetermined amount after said initial expansion, said means heilig constructed and arranged to stop with the parts in expanded condition to allow the slice to set to its stretched shape.

12. ln a machine of the class described, a heel form and a forepart form arranged to be moved relatively toward and away from each other to ed'ect a stretching` ope "ation,

Ipower operated means for ettecting such relative movement, and manually controlled means for e'ecting an initial relative movement of adjustment after the shoe to be stretched ha been placed upon'said forms.

13. In a machine of the class described, the combination with a stationarr heel form and a forepart form arranged to move to .vard and away from said heel form, ot power operated means fc; ei'ecting such movement of the forepart form, and mannally controlled means `for effecting an initial adjustment of said forepart form after the shoe to be operated upon has been placed on said forms.

14. ln a machine of the class described, the combination of the heel iorm and the expansible forepart form, said heel and torepart forms' being relatively movable to ei"- fect the stretching operation, means for e'lfecting such relative movement of said forms and simultaneously expanding said orepart form, and manually controlled means for ettecting an initial adjustment ot' said forms with respect both to the relative longitudinal movement and to the cxpandin movement rt said torepart form, after tie shoe has been placed upon said forms.

1i'. ln a machine oiE the class described, a heel form and aforepart Aform arranged for a movement of separation to stretch the shoe, means i' or operating` saidxl'orms to et' :tect such movement, and manually controlled means operating through elements ol said operating means to cflect an initial separation ot' said forms, said means beingi so constructed and arranged as to vary the initial relative position of said `Forms with out varying substantially the amount of separating movement imparted to seid forms during the operation of said operat mg means.

1G. ln a machine ot' the class described, a heel form and a `torepart form arranged to have relative movements ot approach and separation whereby a shoe may be located upon said t'orms and stretched, means for eift'ccting such movements comprising)` a cam and a lever having an adjustable tulcrum, and means Ylor adjusting` the fulcrum of said lever to elt'ect an initial relative movement ot' said 't'orms before the relative stretching movement is eli'ected.

17. A machine ot' the class described, com prising, in combination, a heel form and a forepart form arranged for movement ot' separatioi'i to eli'ect the longitudinal stretching ot a shoe, and means for holding the heel end of the shoe down upon said heel form during said stretching operation.

18. A machine of the class described, comprising, in combination, a heel form and a forepart form arranged for a movement ot' separation to effect the longitudinal stretching of the shoe, means :t'or effecting such movement of separation, and means operatingautomatically to hold said shoe down upon said heel form during the stretching operation.

19. ln a machine of the class described, a heel form and a torepart form ar 'anged 'toi-.relative movement oi' separation to et'- fcct the longitudinal stretching of a shoe, and means for holding the heel end ot' the shoe down upon said heel form, constructed to mold the heel end of the sole to the proper shape.

2t). ln a machine of the class described, a pair of stretching mechanisms constructed and arranged to receive a pair of shoes to be stretelual, means tor operating said mechanisms to stretch the pair ot' shoes, and means arranged` to et'tqcct simultaneously equal adjustments of said stretching mechanisms to the size ot' the pair of shoes before the stretching operation.

2l. In a machine of the class described, a pair ol? stretching mechanisms constructed and arranged to receive a pair ot shoes to be stretched and to be initially adjusted to the size ot said pair ot slices, and means operating to eti'cct simultaneously equal stretchingv movements ot' said stretching means.

22. In a machine of the, class described, a pair of stretchingr mechanisms constructed and arranged to receive a pair ot' slices to be st retchcd, means for causing said stretching mechanisms to eit'ccty stretching operations equal in extent, and a singlev means for et feeling equal initial adjustments ot' said mechanisms to the size of the pair of shoes.

ln a machine oli the cla `cribed, a

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pair of stretching mechanisms, means for causing said stretching mechanisms to eect the shoe, combined with power driven means for operating the stretching means to stretch the shoe longitudinally and to stretchthe shoe at the same time laterally from the ball portion toward the toe.

D 25. In a machine of the class described,

shoe stretching means constructed and arranged to be initially adjustedv to the size of the shoe, combined with power driven means for operating the stretching means t0 stretch the shoe longitudinally and to stretch the shoe .laterally by progressively lessening amounts from the ball portion toward the toe.

26. In a machine of the class described,

shoe stretching means constructed and arranged to be initially adjusted to the size of the shoe, combined with power driven' means for operating the stretching means to stretch 3o the shoe laterally by progressively lessening amounts from the ball portion toward the toe.

27. In a machine of the class described, shoe stretching means constructed and arranged to be initially adjusted to the size of the shoe, means for operating the stretching means to stretch the shoe longitudinally and laterally, the lateral stretching bearing a xed ratio to the longitudinal stretching.

40. 28. In a machine of the class described shoe stretching means constructed and arranged to be initially adjusted to the size 'of the shoe, means for operating the stretching means to "stretch the shoe longitudinally and laterally, the longitudinal stretching being et predetermined amount and bearing a ixed ratio to the lateral stretching.

29.; A shoe stretching machine having, in combination, shoe stretching means constructed and arranged to stretch the shoe longitudinally and laterally, manual means for setting the stretching means to fill the shoe longitudinally and to fill it laterally across the ball, and means for efecting a further longitudinal movement of the stretching means and a further movement to stretch the shoe laterally across the ball and forepart only.

30. A machine for use in the manufacture of shoes having, in combination, a tool for operating upon the shoe, manually operated means to set the tool for a particular operation upon" the shoe, and automatic means to actua'te the tool a further predetermined i istance in the direction of said adjustment to perform the intended operation upon th shoe and then come to rest.

3l. A shoe stretching machine havin in combination, a member constructed an arranged for elongation to stretch the shoe, 7o manual means for effecting a preliminary elongation which may be determined by the particular shoe being operated upon, and' automatic means to effect a further elongation of predetermined amount and then come to rest with the member in elongated condition. j

32. A shoe stretching machine having, in combination, a member constructed and arranged for elongation to stretch the shoe, 8o manual means or eecting a preliminary elongation which may be determined by the particular shoe being treated, and automatic means for effecting a further elongation of predetermined amount independ- 35 ently of the extent of the manual elongation.

A shoe stretching machine having, in combination, a heel form, a forepart form movable relatively to the heel form to stretch the shoe longitudinally and conrprising laterally separable members pivotally connected near their front ends, inclined guideways on the heel form and guide studs on the rear ends of said members arranged by action of the guideways thereon to separate the rear ends of said members proportionally to the longitudinal stretching movement of the heel form and forepart form relatively` 34;. A machine of the class described hav' ing, in combination, an expansible last for a shoe, and automatic mechanism to give the last a predetermined degree of positive expansion and then come to rest with the last in expanded position to hold the shoe stretched.

35. A machine of the class described having, in combination, an expansible last for a shoe, and automatic mechanism under the control of the operator for distending the last to a predetermined size and then coming to rest With the shoe distended.

36. A machineof the class described hav ing, in combination, an expansible last for a shoe, manual means for setting the last in accordance with the initial size of the shoe being treated, land automatic means for giving the last a predetermined amount of expansion beginning at the initial setting and then coming to rest.

37. A machineof the class described hav- -ing a heel part and a relatively movable forepart, operating means connected with the forepart to move it to distend the shoe, and means positively limiting the extent to which such distention shall be effected.

38. In a machine of the class described, the combination of an eXpansible last l1aving a heel part and a relatively movable minneliifoi'epeit, power driven ineens :tor opeinting 'tlie )Eoi'epeit to (lietencl a shoe, end mecha nisin constructed and arranged to canse the shoe distending; movements to cease zitter the shoe lies been (listenclecl o predetermined amount and to then disconnect the power diiven means lioni the soniee oit' power.

35% l machine olithe classi described bavingg, in combination, an expansible last bei# ingn o, heel part :inde relatively movable :toi'eparn menne for nntennitiallly moving; tlie two parte relatively a predetermined amount to expand 'the lest, and .manuel ineens for effecting an initial adjustment of tlie iorepait end heel part for eliees of different sizes Without thereby meeting the length oi. expanding 'movement of the lest.

40, lln- :i machine of the Class described, sli. stretching Ineens eornpiising a slide movable endwise of e shoe, e orepeit 1nenibei' divided longitudinally of the shoe and pivoted tothe slide et one eind, means for moving` the slide end :torepert inelnbei` lengthwise, enel ineens for eil'eeting .sentieriu tion of the teelt ends oli' the lio'iepzwt niember by movement of the slide toward. the toe All, ln a machine of the class described, ineens i'oi; etieteliing e shoe, ineens for mie jnsting the eti'etehiing;1 ineens to the size oil the slioe to be stretched, and Ineens for tlieiieefter so actuating the stretching' menne as to Stretch the shoe and automatically to stop the etretclfiing; movement at et precieteimined point.

42. lln e machine of the elass described, power driven ineens tot' stretching; e Shoe to nf piecleterinined extent, and automatic ineens for controlling the extent oi the stretching movement.

ln testimony WlieifeolE ll lieve signed my naine to this epeeiicetion in the presence of,

tWo subscribing witnesses.

ll/lllt'llllltllll BRUG-l.

'Witnesses llrlL llonem SPENCER, lTnnDnnieK ln. EDMANDS.

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