US2011682A - Lasting machine - Google Patents

Description

1935. B. JORGENSEN 2,011,682

LASTING MACHINE Filed Sept. 24, 1934 2 Sheets-Sheet l 3 o E 152 1% 5 L J l/E/V TUE. W Y

MW \QQ AZ WWMM I Aug. 20, 1935. I B JORGENSEN' LASTING MACHINE Filed Sept. 24, 1934 2 Sheets-Sheet 2 M 9% MM Patented Aug. so, 1935 ,-1 pp rrso stares LASTING MACHINE Bernhardt Jorgensen, Beverly, Mass, assignor to United Shoe Machinery Corporation, Paterson, N. J a corporation of New Jersey Application September 24,1934, Serial No. 745,226 17 Claims. ((31.12-14) i This invention relates to lasting machines, and

herein illustrated as applied to. means'for lasting the toe ends of shoes, although it isto be understood that in its more general aspects it is not limited to toe-lasting means. In United States Letters Patent No. 1,833,092, granted on November 24, 1931 upon an application of. Arthur F. Pym there was disclosed, in a toeend lasting machine, wiper-operating mech- 'anism soconstructed as tohave a constant tendency in operation both to advance and close the wipers about the toe end of a shoe and to impart to them movement heightwise of the shoe in the upwiping direction, the wiper-operating mechanism being movable by the operator and con- "trolled by the shoe in such manner that upwiping movement of the wipers was effected against yielding resistance by, reason of the greater resistance of the shoe to their advancing andclosing movementsand thereafter they were moved inwardly over the shoe bottom by reason of the decrease in the resistance to their advancing and closing movements as they passed the edge of the shoe bottom in the upwiping operation. The upwiping and overwiping operations were thus properly correlated as determined by the shoe, so that the overwiping operation would begin as soon as the wipers passed the edge of the shoe bottom ers against the upper in the upwiping operation,

there were provided springs which acted in conjunction with the weight of the wipers and their movable supporting means to opposea substantial resistence to their upwiping movement and therefore to render the; above-mentioned operating mechanism effective to press them firmly inward against the shoe in that movement, these springs serving thereafter to press the wipers down upon the shoe bottom as they were moved inwardly .over the shoe bottom.

. l The present invention, in one aspect, provides an improvement in an organization of the character above described, whereby increased insurance is aiforded, especially in operating uponcomparatively heavy upper materials, that the movements of the wipers inwardly over the shoe bottom will begin as soon as the wipers in their upwiping movement arrive in proper position for the over;- lwiping operation and that the wipers will apply adequate pressure to'the upper upon the shoe bottom, especially atthe beginning of the overwiping operation, without the necessity that the abovementioned springs be of such strength as to render it unduly difiicult-to operate the wipers. For the purpose in View, the constructionherein shown comprises means which becomes effective to oppose increased. resistance to the upwiping' movement of the wipers as soon as they are in proper in the upwiping direction.

position to begin the overwiping operation, so as to insure that they will not be moved too far in the upwiping direction by reason of the resistance of comparatively heavy upper materials to their overwiping movements, this means, asillustrated,

being arranged to limit positively the upwiping movement of the wipers. In accordancewith a further feature, moreover, such limiting means in the construction herein shown is movable by the wiper-operating mechanism to increase the pres- 'sureof the wipers upon the shoe bottom as they are moved inwardly over the shoe bottom, In order to permit the operator to move the wipers away from the shoe bottom, by means provided for that purpose, before Withdrawing them from over the shoe, the construction shown further includes mechanism whereby the abovementioned limiting means 'may be rendered inoperative at the proper time in the operation of the machine.

While the invention, for the purposes above described, is herein shown as applied to an organizationof the character disclosed in the above-mentioned Letters Patent, it will be recognized that in various aspects, especially with respect to the means for limiting the upwiping movement of the wipers and for increasing their pressure on the shoe bottom, it is not limited to an organization including wiper-operating mechanism having, as therein disclosed, a constant tendency both to advance and close the wipers and to move them The above and other features of theinvention including various novel details of construction and combinations of parts, will now be more particularly described by reference to the accompanyingdrawings and pointed out in the claims.

In the drawings, v

Fig. 1 is a view in front elevation of a machine in which the invention is embodied;

Fig. 2 is aview in left-hand end elevation of a portion of the structure shown in Fig.1, parts being broken away;

Fig, 3 is a; front View on an enlarged scale of certain parts shown in Fig. 1; U

Fig. .4 is a front view of a portion. of the structure shown inFig. 3 with the parts in different positions: and

Figs. 5 and 6 are sectional views illustrating respectively the positions of. the toe wipersin the upwiping operation and in the overwiping operation.

Asin the construction shown in the abovementioned Letters Patent, the position of the last and shoe in the machine herein shown is determined by pins In (Figs. 5 and 6) which project through holes in the insole into sockets in the last, these pins being supported on a stationary bracket [2. It is to be understood, however, that the invention is not dependent upon the useof this particvided toe-embracingQwipers 16 mounted on a wiper holder. lilwhich is adjustably mounted "on a slide 20 movable in directions lengthwiseof the shoefon the top of another'slide" or wipersuppqrt 7 22 which has a depending portion'vertioallymovable in guideways'in' the :frame of the' machine.

l -The slide 20 is moved toward the right (Fig. .1) to carry the wipers l6 preliminarily toward the shoe. frorrrv anainitial retracted positionby means of a poweroperated camMwhichactsfon'a lever :26

' eonnectedto the slide. The vertically movable slide ZZis connected at its lower end by a, link v23 tea crankarm-Sfl fast onja rock shaft 32 controlledjbyxa double acting treadle comprising":

twoarrns'M and 36 whereby the operator is en- 7 'abled to increase the downward'pressure of, the

wipers IN? on the shoe in the .overwiping opera.-

tion and thereafter to raise the wipers prior to their retractive. movement from over the shoe bottom. The wipers 45 are advanoedand closed. about the toe end of the shoe and inwardly over the shoe bottom by-a plu'ngerlBB acting on wiper carriers AlJ iFigs. and 6) i n a manner more fully disclosed inthepreviously mentioned Letters Patent, upwiping movement/of the wipers prior to their movements inwardly over the shoe bottom being effected by upward movement =of;th.e slide For thus operating vthe slide 22to impart to the.

wipers their upwipingmovement, andqfo'r also operating: the plunger 38toimpart to them their advancing and closing movements, therei s proa lever mounted for'bodily-movementsin addition and corresponding holes fl-ii the two arms ilBto,

- vary; the ratio" between the'leifective 'forcsapplied "through t e; lever .42 to the slide 2.2 and vided; as in the constructionshown in the abovementioned Letters Ratent, a floating-leverv 42,'i. e.,

.toswinging movements. 1 This lever is connected "at its right-hand end (Fig.:1)., -to the'link 28 through a coupling member 44 having a recess intowhich the end of the lever extends and pro vided with slots to receive, apin46 carried by the leverr {At its ,left-handiend the lever 42 is v c nn edy ve ink t a-a r lever- B fast on" a rock shaft 52" which is supported on a bracket 54fon thefraimeofthemachine, the up per endof the bell-crank lever 50being connected to a block 56 which is fast *ontheouter end of rluns r. s s ow iiii R 2, t b .crank lever Ellis made double and has arms extending upwardly at opposite sides of the plunger. 38 .and providedfat their upperglendswith vertical slots 58 in which are mounted-rolls tog-carried by across-bar.62.,connected centrally to the block 56, by means of a pivot stud 64. Itwilltlius beseen that throughthe provision of, the slots 58 operative .relation is maintainedbetween the bell-crank I lever 58 and theplunger 38 in'all positions (of vertical movement of the slide 22 and thewipers 16. Foroper'atingthefloating lever 42 there is provided a hand lever "66 which is fast on'a rock shaft 68 mountedf-in the bracket '54; this rock shaft having also fast thereon adouble lever '10 the twoarms of; which are connected by a web 12' and extend along the opposite sides of the lever 42," these arms being connected: to the lever t2 byfa pin M. The pin' 14may be inserted in any, one of a .number i of holes 1,6 in the lever 42 the plunger easy the movementof the hand lever As thus fardesoribedthe machine is constructed substantially as disclosed in the above-mentioned Letters Patent.

It ,will'be seen that by swinging the. hand lever 66 toward the right; (Fig.

ing leve r'42 between itsoppositeends, and that normally greater resistance to the upward movement of theslide .22 "then tothe' movement of the plunger 38, duelto the weight of the slide and the parts thereon and also-tothe fact that,

as likewise disclosed in the above-mentionedLetters Pa'tent, there areprovided springs 80 connected at their lower ends to the frame of the 'rnaohine and at .theirlupper' ends to a cross-bar p82 .which'b ear's. downwardly onthe slide 29. As

a result bf this resistance'tothe upward'movenient'of the slide 22 th'lev'er 42 swingsj'first about its connection with the coupling member M on th'e'link 28 and thus through th e bell-g.

crank lever 58 advances and' closes the wipers it about the toejend oft-he shoe, the wipers being positioned at that time ,below' the edge of the shoe bottom, as illustratedin Fig.5. As a result of'the resistance of the shoe tofurther advancing and closing movem'ents ofthe wipers the lever 42 then swings abo'utits connection with the link; 48 to lift the slide 22 and thusto impart upwiping movement to the wipers, the latter being held infirm engagement'withthe upper during this operation by reason of the force applied simultaneously by the lever 42 to the bellcranl; lever 59 and the plunger 38, Such force,

'it will be evident, results in part from the resistance of the springs 80' to the upwiping movement. Whenthe wipers in'their'upwiping move- 1 upwardly directed force is applied to thefioat- 1 whenjthus operated thelever 42 tends both to raise the slide 2-2to move the wipers I6 upward-' lyand also to'operate the plunger 38 to impart fto th'e wipersadvancing and closing movements. The construction, howevergis such that there is ment pass theledge of the shoe'bottom, the

resistance of the shoe totheir advancing and closing'movementsbecomes less than the resistance to their upward movement, so that the wipers begin to advance-and close inwardly over theshoe bottom by reason of the actionof the lever 42,011 the plunger 38, the springs'tll holding the wipers down upon the shoe bottom as they are moved inwardly}. It will thus be seen that the wiper-operatingmechanism, while tending constantly to impart to the wipers both up- Ward movement and advancing and closing -movements, is controlled atfall times by the resistances to these movements, so that the upwiping and'overwiping-operations are effected in a sequence determined by theshoe without special attention onthe part of the operator.

For better insurance that the wiperswill not be moved too far in'the'upwiping direction in "operatingyon comparatively heavy upper materials, and that they'will apply adequate downward pressure to the shoe, especially at the very beginning of the overwiping 'operation, without the necessity for using springs of such strength as to make it unduly difficult to'manipulate the lever 66,; the present invention provides for additional control'of the vertically; movable slide 22. To this end, thereis fast on the'slide 22 a rack-bar 84' (Figs. 3 and 4) engaged by a; pinion 86 secured'to a shaft 88 which is mounted in bearingsina plated!) on the frame of the machine. Also fasten-the shaft 88 is a segment member 92 on which issecured a curved bar 94 provided with ratchet teeth 96. Arranged to cooperate with these ratchet teeth is a pawl 91 com- 1 prising a plate 98 having a tooth I thereon for engaging the teeth 96, the plate being adjustably secured to an arm I02 pivotally supported by a stud I 84 (Figs. 1 and 2) carried by the bellcrank lever 5e. Formed in this bell-crank lever is a T-slot I05 along which the correspondingly I shaped head of the stud I04 is adjustable upwardly 'ordownwardlmthe stud being held in adjusted position by a nut I06 threaded on its outer end and acting on a sleeve IQT'WhlCh bears on the outer face of the bell-crank lever. With the parts positioned as' shown in Fig. 1, the stud I00 is located a little above the axis of swinging movement of the bell-crank lever 50, although the stud may by adjustment be positioned in alinement'with this axis. The pawl 91 is urged in a downward direction by a spring I08 connected thereto, When the parts are positioned as shown in Figs. 1 and 3, prior to the upward movement of the slide 22, the pawl 91 is held 'in adjusted position by the screw.

It will be understood that when the slide 22 is moved upwardly in response to movementof the lever 66 to impart upwiping movement to the wipers, the segment member 92 is turned by the slide in the direction of the arrow on Fig. 3, and the plate I I0 is so adjustedthat just as the wipers arrive in proper position to begin the overwiping operation the pawl 97 slips off the end of the plate H0 and engages the ratchetteeth 96. At this point in the operation of the wipers the pawl accordingly acts as a stop to lock the slide 22 against the upwardly directed force applied thereto by the floating lever 42, so that the Wipers are held positively in the proper position to begin the overwiping operation, thus insuring that under any conditions they will not lose proper control of the upper between the upwiping and overwiping operations and that they will apply sufficient' downward pressure to the upper as they wipe it over the edge of the insole. Furthermore, with the stud I 93 on which the arm I02 of the pawl is mounted positioned a little above the axis v downward pressure of the wipers on the upper in the overwiping operation. Under some conditions this will render it unnecessary for the operator to depress the treadle arm 34 at all, although he may depress it, if desired, to increase 'still f further the pressure of the wipers on the upper.

If the stud I04 is adjusted in alinement with the axis of the bell-crank lever 56, no downward movement willbe imparted to the slide 22 by the I bell-crank lever, but the slide will nevertheless be locked as above described against any possibility of upward movement beyond the position in which the wipers are in the proper overwiping plane.-

In order to release the segment member 92, so

that the wipers may be raised from the shoe bottom prior to their retractive movement after the overwiping operation, there is slidingly mounted in a boss I I8 on the plate 90 a rod I20 having adjustably mounted on its upper end a screw I22 arranged to engage and lift the pawl li'i upon upward movement of the rod. At its lower end the rod I20 is pivotally connected to an arm I24 which is fast on a rock shaft I26 mounted in a bearing in a bracket I28 (Fig.2) on the frame, this rock shaft having also fast thereon another arm I30 which carries an upwardly extending screw I32. As the slide 22 is moved upwardly as hereinbefore described the treadle arm 38 is carried to a position substantially contiguous to the upper end of the screw I32, and accordingly when it is desired to lift the pawl 97 this may be conveniently doneby a short downward movement of the arm 36. For this purpose the arm 36 is mounted for limited turning movement about the rock shaft 32 relatively to the other treadle arm 30 against the resistance of. a spring I 34. Such movement is limited by a screw I36 carried by the arm 36 and acting as a retainer for the spring I34, this screw being arranged to engage a member I38 fast on the rock shaft 32 to transmit movement from the arm 36 to the rock shaft for lifting the wipers from the shoe bottom by further depression of the arm 36 after the segment member 92 is released by the pawl 01. The upward movement of the rod I20 to lift the pawl is effected against the resistance of a spring I40 mounted between the boss II 8 and a collar I 42 1 fast on the rod, this spring acting to lower the rod again when permitted by the treadle arm 36. Downward movement of the rod I20 is limited by a collar I44 fast on the rod and engaging the boss H0.

. Having described the invention, what I claim as a new and desire to secure by Letters Patent of the United States is: f

1. In a lasting machine, the combination with end-lasting wipers mounted for advancing and closing movements about an end of a shoe and also for upwiping movement heightwise of the shoe, of wiper-operating mechanism so constructed as to have a constant tendency in operation both to advance and close the wipers and to move them in the upwiping direction and controlled by the shoe for effecting the upwiping operation by reason of resistance of the shoe to the advancing and closing of the wipers and for effecting movement of the wipers inwardly over the shoe bottom by reason of the decrease that resistance as the wipers pass the edge of the shoe bottom in the up wiping operation, and positive means for preventing movement of the wipers in the upwiping direction beyond the proper position for beginning their inward movement over the shoe bottom.

2. In a lasting machine, the combination with end-lasting wipers mounted for advancing and closing movements about an end of a shoe and also for upwiping movement heightwise of the shoe, of wiper-operating mechanism so constructed as to have a constant tendency in operation both to advance and close the wipers and to move them in the upwiping direction and controlled by the shoe for effecting the upwiping operation by reason of resistance of the shoe to theadvancing and closing of the wipers and for effecting movement of the wipers inwardly over the shoe bottom by reason of the decrease in that resistance as the wipers pass the .edge of the shoe bottom inthe upwiping operation, means for opposing yielding iresistance to theupwip ing movement. of the xwipersto render said-operating mechanism effective to press the wipers 'firmly against. the upper; in the upwiping oper ation, and additional means arranged to act automatically to oppos'e'further resistance to move'-;

1 'ment ofth wipers in the upvziping' direction as soonas they arrive in] proper positionvv to begin their movements inwardly over the shoe bottom. v 3. Ina lasting machine; the combination with end-lasting. wipers mounted for! advancing and Y closing-movements aboutganend ofia shoe and also for upwiping movement heightwise of the shoe; of wiper-operating mechanism comprising a floatingleverarranged to have a constant tendency in operation both to advance and .close the wipers and to move theminqthe 'upwiping 7 direction and controlled. by. the shoev ioreifecting the upwiping operation'by reason of resistance-of the shoe to the advancing and closing orthe wipers and for efiectingmovement of the wipers inwardlyovertheshoe-bottomby reason of the decreasein that'resistanceas the-wipers I 'passthe edge of the shoe bottom inthe upwip- 1 ing operation, and mechanism comprising a stop member arranged to become efiective as soon as the wipers arrive in proper position to begintheir movements inwardly over the shoe bottom to pre,

wiping direction.

vent further movement of the wipers in; the u'p- 4. ;n1a lasting machine, thelcombinationwith end=lastingxwipersv mounted for advancing and closingmovements about an end ofa shoe and s also for 'upwiping movement heightwise of the g shoe; of wiper-operating mechanism so construct- 7 ed as to'have a constant'tendencyin operation both to advance and close the wipers and to'move 'them in,the upwiping direction and controlled r'by the shoe for effecting the upwiping operation by'reason of resistance of the shoe to the advancing and closing of the wipers and for effect ing movement of the 'ivipers inwardly over the shoewbottom byxiie-ason of the decrease in'that resistance as thcwipers-passthe edge of the mentor the wipers, a pawl arranged to cooperate I shoe bottom in the upwiping operation, a mem: her having teeth thereon and mounted for turne ing movement inresponse to the upwiping, move- I with said membento prevent movement of the wipers in the I upwipinggdire'ction beyond the proper position to begin their inward movements over the shoe.-bottom,'and adjustable means for holding said pawl normally out of engagement withsaidteeth and forreleasing it at the, proper time to render-inoperative,

Ina-lasting machine; the combination with end' lasting wipers mounted for advancing and closing movements about an endiof a shoe and Q alsoiorupwiping movement heightwise of the edas to havea constant tendency in opera-tion shoe; of Wiper-operating mechanism so constructboth toadvance and close the wipers andv to move them in the upwiping direction and controlled by the shoe for. effecting the upwiping operation by .reasonlof resistance of the shoe to the advancing and :closing .o-fxthe Wipers and for effecting movement of the wipersinwardly over the shoe bottom by reason 'oithe decrease in that 'ers in the upwiping direction beyond the proper position ,for beginning their inward movement resistance as the wipers pass the edge of the shoebottom'in theupwiping operation a de vicearranged to prevent'movement ofthe vvipover the shoe bottom, means to enable the operator at will to" move ;.the' ,wipersxheightwise; of

ator.

closing movements: about anend 'of a shoe and also foriupwiping'movements heightwise of the shoe,,iof \wipenoperating mechanism so con-, structed. as to? have axconstant tendency. in operation'bothit'o advance andclose'the wipers and to move them in the upwipingdirection and controlled/by the shoe for effecting the upwiping I operation by reason of resistance of theshoe to the advancing and closingof the wipers and for effecting movement of the'wipers inwardly over I the shoe bottomby reason-of the decrease in that resistance as the wipers pass theedge of the shoe bottom in the upwiping operation, mechanismcomprising a stop member arranged to become effective as soon as the wipers arrive in proper position 't'obegin their movements inwardly over' the shoe bottom to prevent further move- (merit of the wipers in the upwiping direction, mechanism comprising a treadle for enabling the operator at will to move'the wipers heightwis'e of the shoe. away from the shoe bottom, and means f controlled by said treadle for rendering said stop l memberinoperative so 'as to permit such movementiof the-Wipersby the operator. a

. v '7. Inalastingmachine, the combinationwit end lasting wipers mounted for advancing and closing movements about an end of a shoe and also for upwiping movementheightwise of the shoe; or Wiper-operating mechanism so constructed as to have a constant tendency in operation both to advance and close the wipers and to move them in the upwiping direction and controlled by, the shoe for efiecting the upwiping operation byreasonof resistance of the shoe to the advancing'and closing of the wipers and for effecting movement of the-wipers inwardly over the shoebottom by'reason'of thedecrease in that resistance'as the wipers pass the edgeof the shoe bottom in the upwiping' operation, and a device movable by" said wiper-operating mechanism to increase the pressure of the wipers on the upper heightwise of the'shoe" as the'wipers are moved inwardly over the shoe bottom.

"8. In a lasting" machine, the combination with 'eno'blasting wipers mounted for advancing and closing movements about an end of a shoe and also for upwiping movement heightwise of the shoe, or wiper r operating mechanism so constructedasto; have .a constant tendency in operation' both to advance and close the wipers and to move them'in the upwiping' direction and controlled by the 1 shoefor efiecting the 'upwiping operation by reason of resistance of the shoe to the advancing and closinglof the Wipers and for efiecting movement of the wipers inwardly over the shoebottom; by reason of the decrease in that resistance asthe' wipers pass the edge of the .shoe bottomin the upwiping operatiom a member. havingteeth thereon and mounted for turning movement in response to the upwiping movement of the wipers, and a pawl-arranged to engage said teeth as soon theiwipers in their upwiping'movement arrive. infproper position to begin their; inward movement over the shoe bottom, said pawl'being movableby said wiperop'eratingmechanism to increase the pressure of thewipers on the upper heightwise of the shoe as the wipers are moved inwardly over the shoe bottom. z I

9. In a lasting machine, the combination with end-lasting wipers mounted for advancing and closing movementsabout an end of a shoe positioned bottom upward, and a wiper support movable upwardly to impart to the wipers upwiping. movement, of wiper-operating mechanism so constructed as to have a constant tendency in operation both to advance and close the wipers and to raise the wipersupport-and controlledby the shoe for effecting the upwiping operation by reason of resistance of the shoe to the advancing and closing of thewipers and for efiecting movement of the wipers inwardly over the shoe bottom by reason of the decrease in that resistance as the wipers pass theedge of the shoe bottom in the upwiping operation, and a device includ ing a member arranged to act as a stop to limit upward movement of the wiper support when the wipers arrive in proper position to begin their movements inwardly over the shoe bottom,

.said device being movable by said wiper-opermovement, of wiper-operating mechanism comprising a floating lever arranged to have a constant tendency in operation both to advance and close the wipers and to raise the wiper support and controlled by the shoe for effecting the upwiping operation by reason of resistance of the v shoe to the advancing and closing of the wipers 'and for efiecting movement of the wipers inwardly over the shoe bottom by reason of the decrease in that resistance as the wipers pass the edge of the shoe bottom in the upwiping operation,said wiper-operating mechanism including.

a second lever arranged to be operated by said floating lever to impart the advancing and closing movements to the wipers, and a device arranged to be operated by said second lever to impart to the wiper support downward movement and thus to increasethe pressure of the wipers on the shoe as they are moved inwardly over the shoe 50 bottom.

11. In a lasting machine, the combination with end-lasting wipers mounted for advancing and closing movements about an end of a shoe and also for upwiping movement heightwise of the shoe, of amember movable by the operator to advance and close the wipers inwardly over the shoe bottom-after their upwiping movement, a device arranged to limit the upwiping movement of the wipers, and means for operating said device by the movement of said member to increase the pressure of the wipers on the upper heightwise of the shoe as they aremoved inwardly over the f 7 shoe bottom.

V wardly over the shoe bottomafter their upwiping movement and for also operating said stop member, to increase the pressure of the wipers on the upper heightwise of the shoe when the wipers are over the shoe bottom.

13. In a lasting machine, the combination with end-lasting wipers mounted for advancing and closing movements about an end of a shoe and also for upwiping movement heightwise of the shoe, of a member having teeth thereon and mounted for turning movement in response to the upwiping movement of the wipers, a pawl movable into engagement with said teeth at the end of the upwiping movement, and means for operating said pawl thereafter to increase the pressure or the wipers on the upper heightwise of the shoe when the wipers are over the shoe bottom.

14. In a lasting machine, the combination with end-lasting wipers, of a support for said wipers mounted for rectilinear movement heightwise of a shoe, a member movable by the operator to advance and close the wipers inwardly over the shoe bottom, and mechanism arranged to be operated by said member for moving the wiper support heightwise of the shoe to increase the pressure of the wipers on the shoe bottom in their inward movements over the shoe bottom.

15. In a lasting machine, the combination with end-lasting wipers, of a support for said wipers mounted for movement heightwise of a shoe, a member mounted for turning movement'and connected to said wiper support, said member having teeth thereon, operating mechanism movable by the operator to advance and close the wipers inwardly over the shoe bottom, and a pawl ar- 7 ranged to engage said teeth and movable by said operating mechanism to impart to the wiper support movement heightwise of the shoe to increase the pressure of the wipers on the shoe bottom in their inward movements over the shoe bottom.

16. In a lasting machine, the combination with end-lasting wipers mounted for advancing and closing movements about an end of a shoe,of a support for said wipers movable in directions heightwise of the shoe, means for operating said wiper support to impart upwiping movement to the wipers, a member having teeth thereon and connected to the wiper support to be turned by movement of the support heightwise of the shoe, a pawl arranged to act on said member to limit the upwiping movement of the wipers, and means for holding said pawl normally out of engagement with said teeth and for releasing it to render it operative when the wipers are in proper position to be advanced and closed inwardly over the shoe bottom.

17. In a lasting machine, the combination with end-lasting wipers mounted for advancing and closing movements about an end of a shoe, of a support for said wipers movable heightwise of the shoe to impart upwiping movement to the wipers, i

a member having teeth thereon and connected to said wiper support to be turned by the movement of the support heightwise of the shoe, a pawl arranged to act on said member to prevent upwiping movement of the wipers beyond the proper position to be advanced and closed inwardly over the shoe bottom, means to enable the operator at will to impart further movement to said support to carry the Wipers away from the shoe bottom and means for moving said pawl to an inoperative position to permit such further movement of the support by the operator.

BERNHARDT J ORGENSEN.

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