US1693119A - Upper-shaping machine - Google Patents

Description

Nov. 27, 1928.

A. F. PYM

UPPER SHAPING MACHINE Filed Aug. 20, 1925 7 Sheets-Sheet 1 Nov. 27, 1928.

A. F. PYM

UPPER SHAPING MACHINE Filed Aug. 20, 1925 '7 Sheets-Sheet 3 .illli m ILL r llllll //v Lazy T UR J Nov. 27, 1928. 1,693,119

A. PYM UPPEE SHAPING MACHINE,

Filed Aug. 20, 1925 7 Sheets-Sheet 4 Fig. 5."

A. F. PYM

UPPER SHAPING MACHINE Filed Aug. 20, 1925 7 Sheets-Sheet 5 Fig. 6;

Nov. 27, 1928.

A. F. PYM

UPPER SHAPING MACHINE Filed Aug. 20, 1925 '7 Sheets-Sheet 6 Nov. 27, 1928.

A. F. PYM

UPPER SHAPING MACHINE Filed Aug. 20 1925 7 Sheets-Sheet 7 ill Patented Nov. 27, 1928.

res

earner FFICE.

ARTHUR I". 'PYM, OF MARBLEEEAD, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEVT JERSEY, A CORPORATION OF.

NEl/V JERSEY.

UPPER-SHAPING MACHINE. 7

Application filed August 20, 1925 This invention relates to machines for shaping shoe upper materials over a form or last, and is herein illustrated in its application to a machine for lasting the toes of shoes. It is to be understood, however, that in various novel and useful aspects the invention is not limited to toe-lasting machines.

It has been the usual practice heretofore inthe manufacture of welt shoes and other kinds of shoes to last the toes in machines having toe-embracing wipers which are operated manually to wipe the upper heightwise of the toe and to wipe its margin inwardly over the bottom of the last, i. e., to upwipe and to overwipe the upper. In a well known type of bed lasting machine, for ex ample, there is provided treadic operated. means for raising the wipers to npwipe the upper and for thereafter lowering them to press the margin of the upper down upon the insole on the bottom of the last, and soprrately operated means comprising a hand lever for advancing and closing the wipers about the toe in the upwiping operation and for subsequently effecting the ovorwiping of the margin of the upper. The operator thus has complete control at all times of the lasting operation, so that he is afforded ample opportunity to arrange the pleats or folds in the margin of the upper as conditions may require and is also enabled to vary the pressure applied to the upper at different stages of the lasting operation in accordance with what he observes to be the characteristics and requirements of the particular upper under treati'i'ient. The labor involved in the operation of such a machine, however, frequently imposes a substantial limitation upon the output of the machine, and the quality of the work also sometimes suffers because of fatigue of the operator.

It is an object of the present invention to provide a machine having the advantages of prior machines of-the type above mentioned but relieving the operator of the greater part of the ihysical strain involved in the operation 0 such machines. The invention, in one aspect, accordingly provides a novel organization including independently controL lable power means for eifecting respectively relative n'ioveinent of the shoe and the wipers heightwise of theshoe andrclative overwipingmovement of the shoe andthe wipers. In the machine herein shown independently controlled power-operated mechanisms are pro Serial No. 51,404..

vided for effecting respectively wiper advancing and closing movement and movement of the wipers heightwise of the toe, each of said mechanisms comprising a friction clutch whereby the operator is enabled to start, stop or reverse the movement at will and also, by varying the force of engagement of the clutch members. to vary the pressure applied to the work by the wipers. The operator thus has complete control at all times of the lasting operation, as in theuse of prior manually operated machines, both in respect to the time of the different wiper movements and in respect to the pressureapplied in upwiping, overwipimr and pressing the margin of the upper down upon the insole, while at the same time being relieved of the physical strain incidental to manual operation of the'Wipers.

The above and other features of the invention, including also novel wipenadvancing and (losing means and various novel details of construction and combinations of parts, wiil now he more particularly described by reference to the accompanying drawings and pointed out in the claims.

In the drawings,

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

Fig. 2 is a plan view of the machine;

Fig. 3 is a right-hand end elevation parts broken away;

Fig. i is a plan view, with parts broken away, of z portion of the operating means shown in Fig. 3; I v

Fig. 5 is a cross-sectional view on the line 55 of Fig. 2 of portions of .the machine, with other portions shown in elevation;

Fig. 6 is a view showing certain parts in section on the line 66 of Figs. 1 and 2;

Fi '7 is a view of the toe wipers and their operating means partly in horizontal sec tion and partly in plan, with the cover plate over the wipers removed;

Fig. 8 is a section on the line 88 of Fig. 2;

Fig. 9 is a perspective view of means providcd for locking the too rest; 7

Fig. 10 is a longitudinal section through a with last and shoe illustrating the manner of poably secured to .iviper holders to the Wipers. T

machine, so that by sin of v the shoe.

the lever 24 is an arm usual in toe-lasting machines to conform substanti ally to the contour of the. toe when the Wipers are closed about the too at the edge of the shoe bottom these wipers beii detach- 14- which are guided in a Wiper c *ier 16 for swinging n'ioveinents about an located substantially the meeting point of the wiping edges of the Wip-"s. 'lhe Wiper holders li: are provided with rack teeth engaged by pinions l8 Which are mounted in the Wiper carrier 16 and are operated by a rack inen'iber 20 to impart closiin; and openin inoveinents Wiper carrier 16 is provided with trunnions which are mount d. in upWardl e t idin lever 1) pivoted at n the frame of the i (I movements or the lever the Wiper carrier and the Wipers are advanced and retra d bodily lengthwise Near l'CC end the Wiper carrier ltlis pivotally su ported on the upper end of a link 28, operat o as hereinafter described, whereby the W1} e are moved upwardly to upwipe the upper about the toe to the edge of; the shoe bottom and are later moved downwardly to brine; increased pressure to bear upon the in of the upper over the bottom ch Secured to o \"lllCll the lever nieciianisin is operated through a linll: o to be hereinafter described.

For operating the rack ineinl. r 520 (Fig. 7) to impart closing and opening; movements to the Wipers there is'provf a plunger 3%- having a reduced end per 1011 Which is slidably mounted in a recess formed in member 88. The member 38 is connected at one end to the rack member and is ,ilidibly recess formed in the member a d provides other end oi the spri, flange M 'WlilCl) is a p and this fiang 'e seat.

lac.

iv v v l t against the end of a bushing 4-6 which is threaded in the end of the member 38. The plunger 3% is also torined ivith an enlarged portion 48 which sli lable Within, the bushing 46, and abutagainst the outer end of this portion of the plunger a collar 50 wl ich engaged by a n'ie'i'nber 52 slidably mounted on the plunger. It Will thus be seen that the member acts through the collar 50, the plunger and the spring to impart operatiie movement to the member 38 and the rack member 20 and thus to close the Wipers about the toe. his the Wipers are thus closed the spring; 422 may yield more or less in response to resistance or" the shoe, resulting in movement of the plunger 34 relativelv to the nieroberoll. and may thereafter yield further to permit open in the overwiping' operation and for this purpose the enlarged portion ol toe plunger 34- has threaded adiustably thereon a nut El, togetherivith a loch nut 56 for enthe bushing l6 in the end of the member 38 and thereby iingart'n operative movement positively to the member 3? and the rack member 20.

For operating the member there is threaded on this member a sleeve 58 connected by links tiOto upwardly extending arnis oi a lever 62 which is pivoted at 6 2 on the fratine and is connected at its lower end by a link 66 to the lovverend oi the lever 24 by which the Wiper carrier 16 is moved bodily length.- vvise of the-shoe. It Will thus b seen the lever 24 acts both to advance the Wipers bodily ano at the S21E19 time to close them inward laterally 0t thetoe, the lever 62 beilio' so constructed and arranged in relation to the lever 2% as to impart to the Wiper-closing member 88 movement relatively to the Wiper carrier 16 during the advancing inovoinent ot toe Wiper carrier in the same direction. is shown in Fig, 1, the link 66 is ad'ustably connected to th'elever 62 in such manner to permit a variation of the ext nt of closing; nioveinentof the (vipers tor a ven e e t of advancing movement, as n a. dec' c \viee variations in the shapes of toes ample between pointe'l toes and Widely rounded toes.

It i s desirable, for example Where the same Wipers are used to operate on shoes of dinerent sizes to adjust the Wipers toward or from each other about the axis of their closing movements, so that the edges of the Wipers at the beginning of the operation will be at the same distance from the si of one size 0t too that they are from the sides of another site. For this purpose the machine provided with means for turning the member Within the sleeve 58 Whiclnas above Jllllllilfl, is rig:- idly connected. to the .perating mechanism, this means oon'iprising a hand Wheel 68 mounted to turn on the plui Q and connected to the member 52 thro" 5h an intermediate sleeve member 70 which is also mounted to turnon the plunger and is coupled at its ideal for finally pressing the tween the operat-ing member 52 and the plunger 3 1 in the opening oi the wipers, as a measure of safety in case the operating mechanisrn should continue its movement after the wiper carriers 1% have been moved into abutting relation to each other. By manipulation of the small hand wheel 72 the plunger 3% may be turned to adjust the threaded member 10 along the member 38 and thus to vary the demeans thus far described are claimed in my copending; application, Serial No. 83,372, filed on anuary 23, 1926.

The machine is further provided with means for assisting the operator in adjusting the wipers for different sizes of shoes by indicating the proper adjustments for different sizes. For this purpose there is provided a casting 7 6 having lugs 7 8 and which are sleeved respectively on the hub of the wheel 68 and on one end of the member 52, base lugs bein extended below the )lun 'er 34 and hav- 111g mounted thereln a rod 82 which is tast at one end in a lug 8 1 which extends downward 1 from the member 58. The castin 76 is thus held from turnlng about the EL'XIS of the plunger 34 and is movable with the member 5? in directions lengthwise ot the plunger.

Mounted in the casting 76 is a worm gear 86 \\l1lCl1 1S operatively connected to the worm member 70 andis fast on a shaft 88 which also carries an indicator wheel 90. Adjacent to this wheel is an arc-shaped cover 92 provided with a slot 9 1 over the periphery of the wheel and having at the side of the wheel a pointer 96. The cover 92 is slotted at the side of the wheel 90, as shown in Fig. 1, so that it may be adjusted about the axis of the wheel, and it is held in adjusted position by means of a clamping screw 98 threaded in a part of the casting 76. At the side oil the wheel 90, on a portion of the casting 76, there may be secured a card or other member bearing a series of width indications or letters oppositeto the pointer 96, as illustrated in Fig. 1, and on the periphery of the wheel there may be provided, by means ot a detachable strip of material or otherwise, a plurality of size numerals, as illustrated in 2. It will be seen that as the wheel is turned simultaneously with the adjustment of the wipers by the hand wheel 68 different size numeralswill appear through the slot 94: in the cover 92. In the use of this device the cover 92 will first be adjusted to bring the pointer 96 opposite to that letter which indicates the width of shoe upon which the machine is to operate, and thereafter the hand wheel 68 will be turned to adjust the wipers until there appears through the slot 94 the numeral which indicates the size of the shoe. It will be understood that the distances between the different width letters and between the different size numerals will be so calculated that the correct adjustment of the wipers for any particular size and width of shoe will be properly indicated.

For positioning the shoe the machine herein shown is provided with a toe rest 100 and a holddown arm 102 between which the forepart of the shoe is clamped as illustrated in Figs. 10 and 11. The arm 102 has fast thereon a plate 10% provided with three pins 106 positioned in predetermined relation to the wipers and arranged to extend through holes in the insole and into holes in the last formed in predetermined relation to thecontour of.-

the insole and of the last respectively. This method of positioning the last and its shoe materials, and the means utilized, are fully described and are claimed in Letters Patent No. 1,674,060, granted upon my application on June 19, 1928., It will be understood that in this manner the shoe is positioned lengthwise, laterally and angularly in proper relation to the wipers, so that after the wipers havebeen properly adjusted by manipulation of the hand wheel 68, they will conform to the contour of the toe when they have been advanced and closed a predetermined distance, and so that the proper relation is insured between w the bottom of the forepart of the shoe and the plane of the wipers for the best results in the overwiping operation. It will be recognized, however, that while this means for position ing the shoehas important advantages, since iteliminates the necessity of providing means for adj ustably tipping the wipers lengthwise and laterally of the shoe and insures that the shoe will be properly positioned for the most effective action of the wipers thereon-without the need for any particular care or skill on the part of the operator, the present invention in many of its aspects is not limited to the use of the particular slmepositioning means herein shown.

The toe rest member 100 is mounted on the upper end of a rod 108 which is movable downwardly against the resistance of a. spring 110, and the holddown arm 102 likewise is mountedon a vertically movable plunger 112 and carries a rod 114 which is guided in a portion of the frame of the machine to prevent turning movement of the plunger. Guided for vertical movement below the plunger 112 is a rod 116 which is connected to the plunger by a coupling member 118. Fast on the rod 7 to lift the plunger member 15 1 is mounted to I;

116 is a collar 120 which provides unabutment for the lower end of a spring 122 within a housing 121, the upper end of the spring being sea-ted within a recess in a sleeve member 126 which is slidable for a limited distance vertically on the rod 116 between theupper end of the housing member 12 1 and the lower end of, the coupding member 118. The mem her 126' is connected by links 128 to a lever 180 which mounted to swing; about a shaft 182 and is provided'with an srin 13%: having a roll. 188 in engagement with 21 cam on a shaft 1 10. 1'1 sprin 113-2 acts on the lever 130 2 and the holddow arm 11 102 permitted by the co m 138 and to maintain the roll136 in engagement with the cam. il he shaft 1410 11218 fest thereon gear wheel 14:4 which a engaged and operated by a smaller wheel 1416 mounted to turn on the shaft 132. The shaft 182 couple; to the end of a main operating shaft 8 (Fig. which is driven continuously by a belt pulley 15-0. Fast on the end of the shaft a clutch is lengt wise of the shaft 182 into and out 0 open :7 gagement with the member and connected by a pin 1Y6 to the 1410 to turn with the pinion. Springs 158 n'iove the clutch member 15 1 into engagement with the memher 152' when'permitted by :1 ch tcb. controlling lever 180 which has a we c ce for disconnecting the clutch members a well known way, as illustrated in Fig. 4. The lever 160 is connected by acranl: arm 162 and a link 164 to a treadle lever 166. A: ter the shoe has been mounted on e pins .108 the operator depresses the treadle lever 166 and thereby renders the clutch 152 151 effective to operate the gear wheel 14% and the cam 138, \"v'llQlQliPOfl the cam imparts downward movement to the holddowu arm 102 to clamp the shoe upon the toe rest 100 and to depress the too rest. The operator. releases the tree. dle in time to cause the clutch. memb to be disconnected; from each other at the end of a single revolution of the gear wheel. 1 5-6, the treedle being returned by a spring 168" he parts are th s brought to a stop with the cam 188 in position to maintain the holddown arm 102 the lower limit of its movement. in order to insure that the parts will be stopped in the right position, a spring arm 170 is arranged to bear on the periphery of the clutch member 15 1 an d to act as a broke in co-operation with a lug; 172 on the periphery of the clutch member.

To hold the toe rest 100 against suliisequent downward movement under the pressure of the wipers on the shoe, thereris provided locking means 8 and 9) comprising a plurality of pawls 17 1 herein shown as four in number, arranged in staggered relation for engagement with downwardly facing ratchet teeth 178 formed on a member which is fast on nose, '1 re the rod 108. Springs 118 act, when permitted, to force the pawls into engagement with the ratchet teeth and the pawls are forced out of engagement with the ratchet teeth by movement of rods 180 which carry collars l82fcr engagement with the pawls. Springs 18 1 tend to elevate the rods 180 and thus to render thesprings 178elfective to more the pawls into engagement with the ratchet teeth. Therods 180 are controlled by a lever 186 which engages collars fest the rods and is provided with a rol 188 in engagement with a cam 190 on the shaft 140. When the shaft 140 and the cam 138 have been turned far enou 'h to move the hclddown arm 102 sublly to its lower lin'iit of movement, the cam 190 releases the lever 186 to such an extent as to permit the pawls 1'? to engage the rat 1 teeth. Such slight further move{ ment of the cam 188 may occur after the toe rest has been locked against further down vmrd movement results in compression of the spring 122 in the holddown' operating connections.

.or in parting to the wipers movements twise of the toe and advancing and closoovements through the respective link core 28 and hereinbefore referred to, the machine is provided with separately controlled friction clutch mechanisms. The continuously running shaft 118 carries a pinion. (Figs. 2 end 5) which engages and drives continuously pinions 19 1and 196 mounted to turn idly on shafts 198 and 200. The pinions 19% and 196 have fast thereon friction clutch disks 202 and 20 1-. The shaft 118 also carries a pinion 206 which through idle gears 208 and 210 drives pinions 212 and 214imounted to turn on the shafts 198 and 200. The pinions 212 and 21 1 have fast thereon friction clutch disks 216 218.

It will thus be seen that on the shaft 198 there 226 and 28 to raise the wiper carrier 16 and the wipers, and that when it turned in the opposite direction it operates to lower the wipers.

Between the two oppositely facing clutch disks 202 and 216 on the shaft 198 there is splined 0n the shaft a clutch member 228 having thereon friction clutch disks 280 and facing the disks 202 and 216 respectively. The clutch member 228 is controlled by shaft 236, and fasten this rock shaft is an arm 238 connected by a link 240 to an arm 242 on a roci-z shaft 244 which has thereon a double acting treadle 246. By depressing the left-hand end of the treadle 246 (Fig. 1) the operator may move the clutch disk 232 into engagement with thedisk 216 and thereby cause the wipers to be raised by power to upwipe the upper, and by depressing the right-hand end of the treadle he may move the disk 230 into engagement with the disk 202 to cause the wipers to be moveddowru wardly either to increase their pressure upon the over-wiped upper materials or to return 1 them to their lower limit of movement.

To maintain the clutch member 228 nor mally out of engagement with the members 202 and 216, the. shaft 244 has thereon a bracket 248 provided on opposite sides of the shaft respectively with spring plungers 250 and 252 which engage the base plate of the machine and serve to maintain the treadle 246 and the connected parts in an intermediate idle position. The machine is further provided with means for insuring against excess movement of the wipers in either direction, to avoid possible breakage of parts, especially in case the wipers are operated in the absence of a shoe- For this purpose the shaft 224 has fast thereon a pair of arms 254 which carry adjustable screws 256 arranged for engagement with opposite sides of an extension of thearm 238 to which the treadle 246 is connected. It will thus be seen that if the treadle is held depressed too long in either direction, the corresponding screw 256 Wlll engage the arm 238 and disconnect the clutch member 228 from the clutch member WhlCll is driving it.

For imparting to the wipers advancing and closing movements, and retracting and opening movements, through the link 82 and the parts hereinbefore described, the shaft 200 has fast thereon a worm 258 which engages a segmental worm gear 260 fast on a rock shaft 262. this rock shaft having thereon an arm 264 connected to the link 32. As hereinbefore described, there are mounted to turn on the shaft200 oppositely facing clutch disks 204 and 218 which are driven respectively in opposite directions. Between these clutch disks there is splined on the shaft 200 a clutch member 266 (Figs. 1 and 6) provided with clutch disks 268 and 270 facing the respective clutch disks 204 and 218. The clutch member 266 is controlled by a yoke member 27 2 which is fast on a vertical rock shaft 274 provided at its upper end with a hand lever 276. When the operator moves this hand lever toward him, as he stands in working position, the clutch disk 268 is moved into engagement with the clutch disk 204. whereupon the worm 258 is rotated in the directionto effect the advancing and closing movements of the wipers. hand lever is moved in the opposite direction, the clutch members 270 and 218 are rendered effective to retract and open the wipers. To maintain the clutch member 266 and the hand lever 276 normally in an intermediate idle position, there is secured on the lower end of the shaft 274 a bracket 278 provided at opposite sides of the shaft with spring plunger-s 280 which engage a member 282 on the frame. 1 i

The machine is further provided with means for preventing excess movement of the wipers as they are advanced and closed or as they are opened and retracted. To this end,

there is fast on the rock shaft 262 an arm 284 (Figs. 1 and to which is connected a rod 286 slidably mounted in a member 288 pivoted to an arm 290 (Fig; 6) projecting from the yoke member 272. Fast on the rod 286 are steps 292 for engaging the member 288 on.

opposite sides respectively and thereby turning the yoke member 272 to move the clutch member 266 to an idle position in case movement of the wipers is continued too long in either direction.

In the operation of the machine, a shoe is mounted on the pins 106 in the manner described, and the treadle 166 is then 1110111811. tarily depressed to release the clutch member 154 and cause the shoe to be clamped on the toe rest 100 and to be moved downwardly to the position predetermined by the operating mechanism, the toe rest being then locked by the pawls 174 against further downward movement. By manipulation of the treadle 246 and the hand lever 27 6 in proper relation to each other the operator then causes the wipers to advance and close about the toe and to wipe the upper up to the edge of the shoe bottom, and thereafter to wipe the upper inwardly over the insole and to bring increased downward pressure to bear upon the over-wiped upper. It will be understood that the operator may at any time stop any of the movements of the wipers and likewise reverse the movement at will and repeat any part of the wiping operation, and thathe thus has as effective control of the wipers as if they were operatedmanually, but without the labor incidental to manual operation. Furthermore, the friction clutch members utilized are of a type permitting relative slippingmovement between them in response to resistance of the work, and a further important advantage in the use of the machine accordingly is that the operator is enabled to control the amount If the of a toe binder in the case'ot' Welt shoe Work,

combination with shoe-positioning means and toe-embracing Wipers relatively movable to upwipe and to overv'vipe the toe of an upper, otpower operated means tor effecting the relative UpWiPlllP and overwiping movements comprising a power-driven shait and independently controlled mechanisms operat'ed' thereby for starting or stopping the relative upWi-ping 'mo-vement or the relative overyvipin'g movement, each independently of the other,at-tl'ie will of the operator.

2. In machine of the class described, the combination with shoe-positioning means andtoe-embraoing Wipers relatively movable hei ht'w'ise of the shoe to u JWi e the toe of 23 an upper and to press its margin down upon the insole, ot po'vv'erbperated means tor etfectln the relative u wioln and )re sin h '3 movements and for also operating the pers to vvlpethe upper inwardly over the insole comprising a "power-driven shalt and independently controlled mechanisms operated thereby for start ng, stopping or rev *rsmg the'relatlve upwvl'ping or pressing movement and for Independently starting, stopping or reversing the OVGIl'VlPlIlg movement, at the Will of the operator. 7

3. In a machine of the class described the 3 combinatlon wlth shoe posltloning means and end-embracing wlpersrelatively movable heightwise of the shoe to press the mar-' gin of the upper upon the insole, of poweroperated means for etlecti'ng the relative pressing movement of the shoe and'the wipers and for-also operating the Wipers to Wipe the upper inwardly over the insole compris ing a power-driven shaft and-independently controlled mechanisms operated thereby tor effecting respectively the relative pressing movement and the overwipinig movement.

4. In a machine of the class described, the combination with shoe-positioning means and end-embracing Wipersmf a power-driven shaft, mechanisms operated by said power 1 shaft for imparting respectively to the Wipers movementheighto" ;e otthe shoe and movement inwardly over the bottom of the 1ast,an'd devices*eiiabling the op tor to control each ofsaid mechanisms independently of the other to start or stop at will the move ment effected by that mechanism.

5. In a machine of the class described, the combination with shoe-positioning means and toe-embracing Wipers relatively movable to upwipe and to overwipe the toe of an up per, of independently controlled power-operated mechanisms for efiecting respectively the relative upwiping and overiviping m velnents, each of said mechanisms comprising a friction clutch and controlling means enabling theoperator at will to start or to stop the relative movement effected by that mechanism and also to vary the pressure applied to the Work by that mechanism.

6. in a machine of the class described, the combination with shoe positioning means and toe-embracing-Wipers relatively movable npivipe and to over-Wipe the toe of an upper, of independently controlledpower-operated mechanisms for effecting respectively the relative upvviping and overwiping movements, each of said mechanisms comprising a double acting friction clutch and controlling means enabling the operator at will to start,

stop or reverse the relative movement effected by that mechanism.

' 7. In a machine of the class described, the combination with shoe-p 'tioning I means and toe-embracing Wipers relatively movable to up'ivipe and to overwipe the toe of upper, of different power-operated mechanisms for ccting respectively the relative upvviping and over viping movements, each of said mechanisms comprising a frictionclutch controllabie durin the wiping operation to vary the pressure applied' to the Work by that mechanism, and separate manually operated members for controlling the respective clutches each independently ot the other.

in a machine of the class described, the combination with shoe-positioning means, oi toe-embracing Wipers movable to HPWlQQ and to overwipe thetoe oi an upper, and inclependently controlled power-operated mecha nisms for efiiecting respectively the upiviping and overwipin'g movements of the Wipers, each of said mechanisms comprising a t'riction clutch controllable by the operator to start or to stop at will the movement of the Wipers ettected by that mechanism, d worm gearing; connecting clutch to the Wipers and operative automatically to retain the Wipers in position to which they are moved.

'9. In a machine of the class described,'the combination with shoe-positioning means and toe-embracing Wipers, of powen-operated mechanism for effecting relative movements.

* and end-embracing wipers, of independently controlled power-operated mechanisms for effecting respectively advancing and closing movement of the wipers and relative movement of the shoe and the wipers heightwise of the shoe, each of said mechanisms comprising a friction clutch and controlling means enabling the operator to start or to stop at will themovement effected by that mechanism and also to vary the pressure applied to the work by the wipers at any time in the lasting operation.

12. In a machine of the class described. the combination with shoe-positioning means and toe-embracing wipers, of power-ope"- ated mechanism for effecting relative movement of said shoe-positioning means and the wipers heightwise of the toe to upwipc the upper and thereafter to press its margin down over the bottom of the last, said mechanism comprising a friction clutch and controlling means enabling the operator to start or stop the relative movement at will and also to vary the pressure applied to the margin of the upper by the wipers, and an independently controlled friction clutch mechanism for advancing and closing the wipers with pressure variably determined by the operator both in the upwiping operation and in the subsequent wiping of its margin over the bottom of the last.

13. In a machine of the class described, the combination with shoe-positioning means and toe-embracing wipers, of independently controlled clutch mechanisms for imparting respectively to said wipers overwiping movement and upwiping and pressing movements, a hand lever for controlling the overwiping clutch mechanism, and a treadle for control ling the other clutch mechanism.

14. In a machine of the class described, the combination with shoe-positioning means. of toe-embracing wipers movable to upwlpe and to overwipe the toe of an upper, worms connected to the wipers for effecting respecti velv the upwiping movement and the overwiping movement, double acting clutches associated respectively with the different worms and adapted to start, stop or reverse the movc ments of the worms each independently of the other at any time, and separate manually operated members for controlling the respective clutches to enable the operator to determine throughout the toe-lasting operation the position of the wipers heightwise and lengthwise of the toe.

15. In a machine of the class describes, the combination wth shoe-positioning means, of toe-emln'acing wipers movable to upwipe and to overwipe the toe of an upper, and independently controll d power-operated clutch mechanisms for eli'ecting respectively the upwiping' morcmentand the overwiping movement of the wipers and for starting or stopping either movement at the will of the operator.

and toecmbracing wipers, of mechanism for effecting relative movement of said shoe-positioning means and the wipers to upwipe the toe of an upper, and independently controlled power-operated means for' advancing and closing the wipers comprising a friction clutch manually controllable in the lasting operation to vary the pressure applied to the work by the wipers. p

17. In a machine of the class described, the combination with shoe-positioning means and end-embracing wipers, of power-operated mechanism for advancing and closing said wipers comprising a double acting friction clutch and controlling means enabling the operator at will to start, stop or reverse the movement of the wipers.

18. In a machine of the class described, the combination with shoe-positioning means and end-embracing wipers, of power-operated mechanism for advancing and closing said wipers comprising a clutch controllable by the operator to start or to stop the movement of the wipers at will, and worm gearing connecting said clutch to the wipers and operative automatically to retain the wipers in any position to which they are moved.

19. In a machine of the class described, the combination with shoe-positioning means and end-en'ibracing wipers mounted for relative movement heightwise of the shoe and also for relative movement to wipe the margin of the upper inwardly over the shoe bottom, of operating means comprising a power-driven shaft and independently controlled mechanisms operated thereby for effecting said different relative movements each independently of the other.

20. In a machine of the class described, the combination with shoe-positioning means and end-embracing wipers mounted for relative movement heightwise of the shoe and also for relative movement to wipe the margin of the upper inwardly over the shoe bottom, of operating means comprising a power-driven shaft and independently controlled mechanisms operated thereby for starting, stopping or reversing said different relative movements, each independently of the other, at the will of the operator.

16. In a machine of the class described, the combination with shoe-po:-;1t1oning 111011115 dependently cont-rolled clutches for effecting and controlling said different relative movements each independently of the other.

22. In a machine'of the class described, the combination with shoe-positioning means and end-embracing Wipers monntec for relative movementheightivise of the shoe and also for relative movement to Wipe the margin of the upper inwardly over the shoe bottom, of

ower driven means comprising a friction clutch for effecting said relative heightivise movement and for stopping said movement at the Will ofthe-opei'ator, and independently controlled poWenoperat-ed means for eliecting the relative overvviping movement. 7

23. In a machine of the class described, the combination With shoe-positioning means and end-embracing Wipers mounted for relative movement heightivise of the shoe and also for relative movement to Wipe the margin of the upper inwardly over the shoe bottom, of power-driven means comprising a clutch for e-iecting said relative oven Wiping movement and for stopping aid movement at the will of the operator, and independently controlled power-operated means for effecting the relative heightwise n'iovement.

In testimony whereof I have signed my name to this specification. v

ARTHUR F. PYM J

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