US2101069A - Lasting machine - Google Patents

Lasting machine Download PDF

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Publication number
US2101069A
US2101069A US116589A US11658936A US2101069A US 2101069 A US2101069 A US 2101069A US 116589 A US116589 A US 116589A US 11658936 A US11658936 A US 11658936A US 2101069 A US2101069 A US 2101069A
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Prior art keywords
shoe
last
wipers
band
toe
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US116589A
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Jorgensen Bernhardt
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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Priority to US116589A priority Critical patent/US2101069A/en
Priority to DEU920D priority patent/DE916026C/en
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/12Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/12Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
    • A43D21/127Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last with wipers

Definitions

  • the present invention provides means for increasing the pressure of the band on the-uppefatthe sides oi the toe near its extreme end, the construction shown comprising for this purpose" spring-controlled levers whichare movableabout axes err-3 tending heightwise -of the-last relatively to other levers ion which theyare supported and which control the endportions of the band.
  • A-further object of the invention' is to provide means' ior adjusting the band moreefiectively than heretofore for operating on shoes of different shapes, and to this end the above-mentioned spring-controlled levers are connected tothe band and are adjustable about their axes to spread variably -1 apart the portions of the band which they control. It willbe understood that while means is herein shown for thus controlling and adjusting a toe band, the invention isnot limited tomeans operating at the toe end of a-shoe;
  • Theinvention further provides a construction whereby the pressure of wiping means on the marginalportionof an upper is maintained sub-j shoe bottom and yet will notiapply excessive pressure to the upper: as th'ey are 'n oveer farther n? wardly over the shoe bottom;
  • the wipers have interlocki-ng portiens constructedto; provide'a plurality offin'gers"which overlie the thin plate and press it the'upperinlocationsatdi ffeient distances from-theed'ge'of the shoe bottom when the wipers are in their closed posiunder the platefwill be subjected td adequate pressure. It will be understood “that in this feature the invention is not limited to "wipers which operate at the-toe end of a shoej
  • the machine herein further includes,- 3
  • the heel-end clamping means in accordance with the'lpres'ent i nventi n an axis ext ending lengthwise of the fshoeas the shoe is" tipped-r A s-illustrated, moreover, the:
  • clamping means is" controlled byaspring which is mounted to turn about hams "it “normally in --a definite position and v the tipping of the sh'oeta 'As "disclosed-- in the previously ,mentiondi Let:
  • the'toe wipers "are mov-j' able-under control of the toe band about an axis" extending heightwiseof thelast to difierent posie tionsqin accordance with the lateral fswing of f the r rep'arts-er right and le it lasts,.and'the ma?
  • chine isa'lso provided with a device for engaging theima'rginai' portion of the upper' inthep athidf the wipers to' pr'es's'it againstjthe wipers' in the wiping operation:
  • this-device is so mounted as, to move about an axis extending heightwise of the last to difi erent positions corresponding-:
  • Fig. 1 is a view in front elevation showing mainly the upper portion of a machine in which the features of the invention are embodied, with the parts in the positions which they occupy after the heel-end clamping means has engaged the shoe but before the starting of the power operation of the machine;
  • Fig. 2 shows the left-hand portion of the ma.- chine, partly in elevation, as viewed from the right in Fig. l, and partly in section;
  • Fig. 3 is mainly a plan view of the toe-lasting mechanism, with parts of the structure removed;
  • Fig. 4 is a plan view showing the means for clamping the upper about the toe end of the last and for wiping it heightwise of the last, parts located above this means being removed;
  • Fig. 5 is a section on the line V+V of Fig. 4, showing also one of the toe wipers and associated parts with the wiper in the position which it occupies at the end of the overwiping operation;
  • Fig. 6 is a view similar to Fig. 5 of a portion of the structure there shown, illustrating, however, the positions of the parts substantially at the beginning of the overwiping operation;
  • Fig. 7 is a section on the line VII-VII of Fig. 4;
  • Fig. 8 shows a portion of the heel-end clamping means as viewed from the left in Fig. 1, with parts in section on the line VIII-'VIII;
  • Fig. 9 is a section on the line IX-IX of Fig. 1;
  • Fig. 10 is a section on the line X-X of Fig. 9;
  • Fig. 11 is a view of a portion of the machine in right-hand. end elevation
  • Fig. 12 is a vertical section through the toe end of a shoe and parts closely associated therewith in the lasting operation;
  • Fig. 13 is mainly a plan View, illustrating the relation of the toe wipers to the device which engages the margin of the upper in the path of the wipers.
  • the last and shoe are supported at the heel end on a block 2 (Fig. 1) having thereon a heel pin or spindle 4 which enters the spindle hole in the last, the block being supported on the head of a post 6 vertically adjustable in a holder 8.
  • the block 2 is freely movable in the head of the post 6 along guideways II] which extend laterally of the shoe and are curved about a virtual axis located at or near the bottom of the heel end of the shoe, so that the shoe may be tipped laterally to position the bottom of its forepart in proper relation to the toe wipers.
  • mechanism somewhat difierent from that provided heretofore may be utilized to effect a quick vertical'adjustment of the post 6 for shoes of different sizes or styles;
  • This mechanism comprises a pinion 12 fast on a shaft I l mounted in bearings in the holder 8, the pinion being arranged to engage rack teeth I6 on the post 6.
  • Fast on the shaft 14 is a crank arm I8 for turning it, this crank arm carrying a spring-pressed pin 26 arranged to enter any one of a series of holes 22 provided in a disk 24 fast on the holder 8.
  • This holder is supported on a vertically movable slide 26 which is depressible with the shoe as heretofore against the resistance of a spring 28.
  • the toe end of the shoe is supported on a toe rest 30 (Figs. 3 and 4) also depressible with the shoe against the resistance of spring means not herein shown but disposedin the last-mentioned Letters Patent.
  • Depression of the shoe in the power operation of the machine is effected as heretofore by means engaging the bottom thereof at the toe and heel ends.
  • the means thus acting at the toe end of the shoe comprises a presser foot 32 (Figs. 1 and 12) mounted on a bracket 34 which is supported on an arm 36 and is vertically adjustable by a screw 3'5 (Fig. 2).
  • the arm-36 is supported on vertically alined rods 38 and 40 mounted for vertical movements and for turning movements in bearings in the frame.
  • the arm 36 occupies initially a position in which the presser foot 32 is retracted rearwardly from over the shoe bottom, and the operator swings the arm forwardly to carry the presser foot into position over'the shoe bottom by means of a handle 42.
  • Such forward movement of the arm 36 serves to start the power operation of the machine, as disclosed in Letters Patent No. 1,843,232, whereupon the arm is carried downward simultaneously with the means engaging the heel end of the shoe to effect the depression of the shoe.
  • the rod 46 (Fig. 2) is swiveled at its lower end in a coupling member 44 which is connected by a link 46 to one end of an arm 48 fast on a rock shaft 58.
  • an arm 52 Also fast on this rock shaft is an arm 52 provided with a roll 54 engaged by a path cam 56 formed in one side of a cam wheel 58 on a cam shaft 60. It will thus be seen that by turning movement of the rock shaft 56 the cam 56 imparts downward movement to the arm 36 and the toe presser foot 32.
  • This means comprises a heel presser foot 62 supported by a carrier 64 fast on a rod 66 mounted for vertical movements and also for turning movements in bearings in the frame of the machine. Turning movement of the rod 66 to swing the presser foot 62 from an idle position into position over the heel end of the shoe is effected in response to downward movement of the rod, as disclosed in Letters Patent No. 1,843,232.
  • the rod 66 is swiveled at its lower end (Fig.
  • an arm 86 for turning it Carried by the arm 86 is a springpressed pin 88 arranged to enter any one of a series of holes in the carrier 64 to hold the presser foot in adjusted position.
  • the toe-lasting mechanism includes as heretofore, a slide 92 (Fig. 1) adjustable in directions lengthwise of the shoe, and a casting 94 adjustable on the slide 92 about an axis extending laterally of the shoe.
  • Supported on the casting 94 is means generally similar to that disclosed in the previously mentioned Letters Patent No. 2,075,852 for clamping the upper around the toe end of the last and for wiping the upper upwardly as the last and shoe are forced downwardly in the manner'above described.
  • This means comprises a block 96 (Fig. l) fast on the casting 94 and serving as a support for a pair of levers 98 pivotally mounted between their ends on pinsgI00 on the block 96.
  • each lever 98 serves as a support for a block I02 which inthe construction herein shown has a cylindrical shank portion I04 (Fig. 5) mounted in a bearing in the lever 98to permit the block to turn about an axis extending heightwise of the shoe.
  • the two blocks I02 have inclined slots therein to receive the the end portions of a flexible toe band I08 for engaging the shoe and wiping the upper upwardly.
  • Supported on the upper fiat face of the block 96 are applurality of slides extending in a series lengthwise of the edge of the shoe bottom between the two blocks I 02 and also having inclined slots therein to receive the band I06.
  • the several slides are controlled by a coil spring IIB extending around the toe and mounted in recesses in their outer sides in the manner illustrated in Fig. 7.
  • each lever 98 has rotatably mounted therein a stud H8 provided below the arm with a block I20 through which extends a rod I22, one end of this rod having thereon screw threads engaging corresponding threads in one of the blocks and the intermediate portion of the rod being mounted to turn in the other block.
  • bell-crank'lever is pivotally connected by a stud M0 (Fig. 4) to a block I42 the opposite ends of.
  • a screw I52 threaded in each bell-crank lever I34 is arranged to engage an arm I54 integral with the lever 98 to limit movement of the bell-crank lever by the spring I50 when'there is no shoe in the machine.
  • These screws serve in addition to the hand wheel I30 to adjust the toe band for shoes of different shapes. .By turning the screws, for example, in
  • the slides H0 and II 4 are moved in outward directions to spread farther apart portions of the toe band located opposite the sides of the toe near the end thereof without affecting the spacing of the ends of the band controlled by the hand wheel I550.
  • the studs I40 are mounted in the blocks I42 somewhat nearer the slides [I0 than the slides II l, so that the levers I34 in this adjustment of the toe band act with greater force on portions of the band located substantially opposite the corners of the toe than on portions controlled by the slides II4.
  • the construction herein shown includes means for adjusting thetension of, the coil spring H6 shoe.
  • each end of the sprin'g is connected by a wire loop I58 to an eye-bolt I58 mounted in a lug I60 on the bell-crank lever I34 .an eccentric an axis located substantially at the junction of 1 their wiping edges.
  • the wiper carrier is provided as heretofore with a thin plate I'IU, shown in dotted lines in Fig. 3, which underlies portions of the wipers and moves with them over the end of the toe so that no portion of the margin of the upper at the end of the toe will be exposed and therefore relieved of pressure when the wipers close.
  • the wipers In order to hold this thin plate firmly against the margin of the upper the wipers have interlocking portions comprising, on each wiper, a plurality of curved fingers I72 'whichextend into corresponding recesses in the other wiper when the wipers are in their open positions and hold the plate I10 pressed down on the upper in locations at different distances from the edge of the shoe bottom when the wipers are closed over the shoe bottom.
  • the wiper carrier IE6 is operated to advance the wipers lengthwise of the shoe by a gear sector I'M fast on a rock shaft I16 mounted in the casting 94 and operated by the same means as heretofore in machines of the illustrated type.
  • the wipers are closed laterally of the shoe by slides I18 mounted in guideways in the casting 94 and operated by rack bars I813, these rack bars being operated by gear sectors I82 on the rock shaft I16.
  • rack bars are connected yieldingly to the slides IIB for a purpose hereinafter described.
  • the yielding connection between each rack bar and slide comprises a spring I84 mounted between one end of the slide and an upstanding lug I86 on the rack bar. Extending through the lug and the spring and threaded in the slide I78 is a screw I88 the head of which serves by engagement with the lug I86 to determine the initial relation of the rack bar and the slide.
  • the eccentrics I93 are parts of mechanisms of the same character as disclosed in the last-mentioned Letters Patent for swinging the two wipers IM simultaneously in one direction or the other about the axis of their closing movements to adjust them in accordance with the swing of the forepart of a. right or a left last in response to a similar swinging movement'of the toe band I86 when a shoe is forced downwardly within the toe band.
  • Each of these mechanisms includes a link 208 one end of which is connected to one of the band-controlling levers 98 through an upward extension of the pin I35, as shown in Fig. 5, the other end of the link being connected to a plate 202 which is integral with the eccentric I94.
  • the bottom of the forepart of a last is usually somewhat convex in directions widthwise of the last, as shown in Fig. 5. It will be evident that if such a last is held stationary relatively to wipers operating in a single plane the pressure of the wipers on the margin of the upper will increase progressively as the wipers are moved inwardly over the insole if the wipers engage the upper initially at the extreme edge of the insole.
  • the present invention further provides a construction such that the wipers, acting on the upper with adequate pressure at the extreme edge of the insole, will not apply excessive pressure thereto as they are moved farther inwardly. For this purpose the cam 56 (Fig.
  • toe presser-foot 32 which, as previously described, imparts the shoe-depressing movement to the toe presser-foot 32 and the heel presser-foot 62 is so formed, as indicated at a, as to depress the shoe somewhat during the overwiping move-' ment of the wipers.
  • the toe presser-foot 32 will be so adjusted that when the wipers begin to wipe the margin of the upper inwardly over the insole they will apply adequate pressure thereto, as illustrated in Fig. 6, and by the action of the cam 56 as they are moved farther inwardly the shoe is depressed sufficiently to cause the pressure of the wipers on the upper to remain substantially uniform, as illustrated in Fig. 5.
  • each wiper'in the construction herein shown carries a, roll 2H) arranged to engage a shoulder 2 I 2 on the block I92 which supports the toe band.
  • the closing movements of the wipers therefore, are limited by the shoe so that they will close inwardly equal distances from the opposite side edges of the shoe bottom.
  • any further movement of the rack bars I89 serves merely to compress the springs I84.
  • the wipers I 64 are maintained in a heated condition to render them more effective in'wiping the margin of the upper free from wrinkles and to accelerate the hardening or setting of adhesive whereby the upper is secured to the insole.
  • electrically heated plates 2M (Figs. 2 and 5) fastened 'to a cover plate on the casting 94 and in sliding contact with extended fiat upper faces 2I6 (Fig. 3) on the links I96, these links having also lower fiat faces in sliding contact with the wipers.
  • brackets 2I8 and 220 (Fig. 2) the upper ends of which extend to positions over'th'e portions of the plates 2I4 which'engage' the links I96 and carry set screws bearing downwardly on these plates.
  • the set screw on the bracket 2 l 8 is shown at 222 in Fig. 2, and the set screw on the bracket 228 is shown at 224 in Fig. 5. It will be understood that these screws may be adjusted as desired. ,7
  • the machine is further provided with means constructed for the most part as shown in Letters Patent No. 2,075,852 which, by engagement with the bottom of the forepart of the shoe, will tip the shoe laterally to insure that both sides of the toe end of the shoe bottom will be at the same height relatively to the Wipers if the shoe is not already properly positioned in that respect.
  • This means comprises a member 226 (Figs. 2 and 12) formed to engage'the opposite sides of the forepart of the shoe bottom and mounted for upward and downward swinging movements on the previously mentioned bracket 34 on the arm 36.
  • This member is controlled by two pivotally connected links 228 and 230 which are held normally in substantialalinement by a spring 232 toposition the member 226 for engagement with the bottom of the shoe before the presser foot 32 engages it.
  • the shoe is thus properly positioned by the member 226 before it is moved downward to any substantial extent, whereupon this member is withdrawn from contact with the shoe bottom by swinging the links 228 and 230 out of alinement, as illustrated in Fig. 12.
  • the link 236 is fast on a shaft 234 mounted in the bracket 34, and also fast on this shaft in the construction herein shown is an arm 236 (Fig.
  • the block 248 has a depending portion movable in a guideway in the previously mentioned bracket 220, as shown in Fig. 3, and the block is adjustable upwardly or downwardly by means of an arm 242 mounted on a pin 244 on the bracket 226, the arm being provided with a stud 246 which extends into a slot in the. depending portion of the block.
  • the arm 242 carries a spring-pressed pin 248 arranged to enter any one of a number of holes in the bracket 220 to maintain the block 246 in adjusted position.
  • the machine herein shown is also provided with means for pressing the toe end of the insole down on the bottom of the last and for engaging the margin of the upper in the-path of the toe wipers I64 and pressing it against the wipers for better insurance that the upper will be wiped tightly and smoothly inward over the insole.
  • This means comprises a member 256 (Figs.
  • the member 258 is positioned initially somewhat lower than the presser foot 32 to insure that it will engage and press the toe end of the insole down on the last under the influence of the spring 254. As shown in Figs.
  • the member 256 in its operative position on the insole is in the path of the toe wipers so that it "will press the marginof the upper against thebe lifted against the resistance of the spring 254 by the wedging action of the wipers thereon to permit the margin of the upperto be wiped down upon the insole beneath it.
  • the member 250 is not positioned symmetrically with respect to the toe end of the insole, pressure of one or the other of the wipers against it in the wiping of the margin of the upper inwardly over the insole will turn it to such a position about the axis of the pin 268, as will be evident by reference to Fig. 13.
  • the member 250 is also movable as heretofore about an axis extending laterally of the shoe to permit it to adjust itself to the shoe bottom, the member and the block 258 being connected for this purpose by- A spring 264, connected at one a pivot pin 262.
  • the pin 262 is located comparatively near that portion of the member 250 which is at the extreme e d of the toe, since if it were not for the sprin'g'264 the member 250 under these conditions would act with somewhat less pressure on the shoe materials in locations farthest from the end of the toe than in other locations.
  • the shoe is clamped about its heel end, as heretofore, by a flexible heel band 268 whichassists in controlling it in the toe-lasting operation, this heel band being carried by a slide 210 movable in directions lengthwise of the shoe along rods 212, one of which is shown in Fig. 1, supported by the vertically movable slide 26.
  • the heel band is supported at its ends by twr arms 214 (Figs.
  • the holder 282 has a depending shank portion 288 vertically movable in a guideway in the slide 218 to permit adjustment of the heel band in directions height- Wise of the shoe for shoes of different sizes or shapes.
  • Such adjustment is effected by an arm 298 (Fig. 8) mounted for vertical swinging movements about a stud 292 on the slide 210 and provided with a pin 294 lying in a horizontal slot 296 in the shank 288.
  • A-spring-pressed pin 298 carried by the arm 298 is arranged to enter any I one of a number of holes 388 in the slide 216 to hold the heel band in adjusted position.
  • the heel band 268 is held initially in a retracted position, as heretofore, by a latch 383 (Fig. -1) in engagement with a shoulder on the lower end of the slide 218, and this slide and the heel band are moved toward the shoe by a spring 3"] when the slide is released by the latch.
  • a latch 383 Fig. -1
  • Such release is effected by the operator prior to the starting of the power operation of the machinerby downward movement of an arm 3l2 which carries the latch, this arm being mounted on a stationary bracket 313.
  • the holder 8 which supports the last pin 4 as hereinbefore described is movable in directions lengthwise of the shoe along a guideway in the slide 26, and is controlled by a spring 3! acting thereon through a link 3 l6, as more fully disolosed in Letters Patent No.
  • a latch 3l8 is arranged to maintain the holder 8 initially retracted farther to the left than shown in Fig. 1, and near .the' end of the movement of the slide 210 by the spring 3
  • the machine is provided with automatic means for removing the shoe fromthe shoe support after the lasting operations have been completed, comprising an os- 5.cillatory shoe-carrying arm 322 (Fig. 11) having thereon a shoe-gripping device 324, the arm being mounted on a rock shaft 326 for swinging movement into position for the device 324 to grip the shoe on the shoe support and for reverse 70 swinging movement to carry the shoe to a position in which it is released.
  • the arm is swung into position to grip the shoe by downward movement of a rack bar 328 engaging a pinion 333 on the rock shaft 326, the downward movement 75.
  • the arm 334 is further utilized to effect such return of the holder 8 when the arm has nearly completed its upward movement, the shoe having then been 25;
  • 6 connected to the holder 8 is pivotally connected to an arm 342 (Fig. l) mounted to swing on the bracket 3l3 and geared to another arm 344 also mounted to swing on the 30,.
  • the bar 346 is at such a height that the plate 354 is at the right of the plate 356. Near its lower end the bar 346 is provided with a second slot 358 in which lies a pin 368 carried by the arm 334, this pin having a head thereon to hold the 457 bar. in proper relation to the arm.
  • a springpressed pin 362 in the lower end of the bar 343 serves as a buffer upon engagement of the pin 368 therewith in the downward movement of the arm 334.
  • the pin 348 is substantially midway between the upper and lower ends of the slot 358 and the pin 368 is at the upper end of the slot 358. Accordingly, when the arm 334 is moved downwardly during the swinging of the shoe-removing device toward the shoe and acts through the rod 338 to return the slide 218 which carries the heel 0.
  • the pin 368 is first moved downwardly along the slot 358 and thereafter acts to lower the bar 348 to such a position that the plate 354 at its upper end snaps under the plate 356 on the arm 344. Such downward movement of the bar is limited by the pin 348.
  • the pin 368 first moves idly along the slot 358 until it arrives at the upper end of the slot and then serves to raise the bar 346.
  • the bar is thus raised its plate 354 acts on the plate 356 to swing the arm 344 in the direction to return the holder 8 toward the left into position to be held by the latch 3l8. Further upward movement of the A leaf spring 352 fast on 35;
  • a flexible band for clamping a shoe upper around an end of a last, members mounted for movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, and other members supported by said firstnamed members and mounted to swing relatively thereto independently of said end-pressing means about axes extending heightwise of the last for pressing other portions of the band against the upper;
  • a flexible band for clampinga shoe upper around an end of a last, spring-controlled levers mounted for swinging movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, other levers supported by said first-named levers and movable relatively thereto independently of said endpressing means about axes extending heightwise of the last for pressing against the upper portions of the band located farther from its ends, and springs tending to swing said other levers relatively to said first-named levers in directions to press the band against the upper.
  • a flexible band for clamping a shoe upper around an end of a last, spring-controlled levers arranged to extend lengthwise of the last and mounted for swinging movements widthwise of the last, blocks supported on said levers for pressing the end portions of said hand against the upper, bellcrank levers also supported on said first-named levers to swing relatively thereto about axes extending heightwise of the last, said bell-crank levers having arrns arranged to press against the upper portions of the bandlocated farther from its ends then sa d blocks.
  • a flexible band for clamping a shoe upper around an end of a last, members mounted for movements wiclthwise of the last and having thereon means for pressing the end portions of said band against the upper, a plurality of slides supported independently of said members for movements to press other portions of said band against the upper, and spring-controlled levers p-ivotally mounted on said members for forcing said slides inwardly toward the upper.
  • a flexible band for clamping a shoe upper around an end of a last, members mounted for movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, a plurality of slides for pressing other portions of said band.
  • levers supported on said members to swing relatively thereto about axes extending heightwise of the last to control said slides, members pivotally connected; tosaid levers and also to the slides controlled thereby, and springs arranged to act on said levers to force said last-named members and the slides inwardly toward the last.
  • a'flexible band for clamping a shoe upper around an end of a last, a plurality of members arranged to extend in a series around the end of the last in locations opposite the end and side faces of the last to control said band, a coil spring extending lengthwise of the edge of the shoe bottom around the series of members to hold the band pressed yield- .
  • additional means a plurality of slides arranged to extend in a series around the end of the last in locations opposite the end and side faces of the last and mounted for movements relatively toone another toward the last to press the hand against the upper, a coil spring extending lengthwise of the edge of the shoe bottom around the series of slides to force them inwardly toward the upper, and additional spring means arranged to act on a plurality of said slides located opposite the side faces of the last to increase the pressure of the band on the upper in those locations.
  • a flexible band for clamping a shoe upper around an end of a last, spring-controlled levers mounted for swinging movements widthwise of the last and having thereon means for pressing the, end portions of said hand against the upper, a plurality of members arranged to extend in a series around the end of the last in locations opposite the end and side faces of the last for pressing other portions of said band against the upper, a coil spring extending lengthwise of the ed e of the shoe bottom around the series ofv members to force them inwardly toward the up e and spring-controlled devices supported by said levers and movable relatively thereto for applying additional inward pressure to a plurality of said members located opposite the side faces of the last.
  • a flexible band for clamping a shoe upper around an end of a last, levers mounted for swinging movements widthwise of the last and having thereonmeans for pressing the end portions of said band against the upper, a plurality of slides arranged to ex-' tend in a series around the end of the last in locations opposite the end and side faces of the last for pressing other portions of the band inwardly against the upper, a coil spring extending lengthwise of the edge of the shoe bottom around the series of slides for forcing them inwardly toward the upper, and springecontrolled levers supported by said first-named levers and movable relatively thereto about axes extending heightwise of the last for applying additional inward pressure to a plurality of said slides located opposite the side faces of the last.
  • a flexible band for clamping a shoe upper around an end of a last, members arranged to control the end portions of said band and to maintain said end portions nor mally at a predetermined distance from each other, and devices connected to other portions of said band located farther from its ends than said members and adjustable to spread said other portions variably apart without substantially altering the distance between the end portions of the band.
  • a flexible band for clamping a shoe upper around an end of a last, members mounted for movements widthwise of the last and having thereon means for variably spacing the end portions of said band from each other, and devices supported by said members and adjustable relatively thereto for variably spreading apart portions of the band located at substantial distances from its ends.
  • a flexible band for elamping a shoe upper around an end of a last, members mounted for movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, other members supported by said first-named members and mounted to swing relatively thereto about axes extending heightwise of the last for pressing other portions of the band against the upper opposite the sides of the last, connections between said other members and the band, and means for adjusting said other members about their axes for variably spreading said other portions of the band apart.
  • a flexible band for clamping a shoe upper around an end of a last, spring-controlled levers mounted for swinging movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, other levers supported by said first-named levers and movable relatively thereto about axes extending heightwise of the last for pressing against the upper other portions of the band located opposite the side faces of the last, springs tending to swing said other levers relatively to said first-named levers in directions to press the band against the upper, connections between said other levers and the band, and means for adjusting said other levers against the resistance of said springs to spread said other portions of the band variably apart.
  • a flexible band for clamping a shoe upper around an end of a last, spring-controlled levers arranged to extend lengthwise of the last and mounted for swinging movements widthwise of the last for pressing the end portions of said band against the upper, a plurality of slides connected to other portions of said band opposite the side faces of the last, other levers supported by said first-named levers and movable relatively thereto about axes extending heightwise of the last, connections between said other levers and said slides, springs tending to s ing aid other levers in directions to force the slides inwardly toward the upper, and means for adjusting said other levers against the resistance of said springs for variably spreading apart the portions of the band to which said slides are connected.
  • wiping means for wiping the marginal portion of an upper inwardly over a convex bottom face of a last, and means for eifecting a predetermined amount of relative movement of said wiping means and the last heightwise of the last in automatically determined time relation to the wiping operation to maintain the pressure of the wiping means on the marginal portion of the upper substantially uniform during that operation.
  • wipers movable to wipe the marginal portion of an upper around an end of a last inwardly over a convex bottom face of the last, and automatic means for imparting'to the last a predetermined amount of heightwise movement relatively to said wipers in the wiping operation to maintain the pressure of the wipers on the marginal portion of the upper substantially uniform during their wiping movements.
  • wipers movable to wipe the marginal portion of an upper around an end of a last inwardly over a convex bottom face of the last, mechanism for moving the last heightwise by pressure on its bottom face, and a cam for operating said mechanism, said cam being so formed as to impart to the last in the course of the wiping movements of the wipers a movement of such extent as to maintain the pressure of the wipers on the marginal portion of the upper substantially uniform during the wiping operation.
  • wipers for Wiping the marginal portion of an upper around an end of a last inwardly over the bottom of the last, said wipers being movable bodily lengthwise of the last and also mounted for swinging or closing movements widthwise of the last, and a comparatively thin plate movable lengthwise of the last with said wipers in engagement with the marginal portion of the upper at the extreme end of the last, said wipers having interlocking portions constructed to provide a plurality of fingers arranged to overlie said thin plate and press said plate upon the upper in locations at different distances from the edge of the shoe bottom when the wipers are in closed positions over the shoe bottom.
  • wipers for wiping the marginal portion of an upper around an end of a last inwardly over the bottom of the last, said wipers being movable bodily lengthwise of the last and also mounted for swinging or closing movements widthwise of the last, and a comparatively thin plate movable lengthwise of the last with said wipers in engagement with the marginal portion of the upper at the extreme end of the last, each of said wipers being provided with a plurality of curved fingers arranged to extend into corresponding recesses in the other wiper when the wipers are in their open positions and to overlie said thin plate and press said plate upon the upper when the wipers are in their closed positions over the shoe bottom.
  • a device for clamping an upper around the toe end of a last and'for wiping the upper heightwise of the last wipers mounted for closing movements widthwise of the last, operating mechanism for maintaining said wipers in open positions out of engagement with the sides of the shoe during the wiping of the upper heightwise of the last and for thereafter a closing them to wipe the marginal portion of the toe end of the upper inwardly over the bottom of the last, and stops on said wipers for limiting their closing movements by engagement with said clamping device, said wiper-operating mechanism including spring means yieldable upon engage- .ment of said stops with the clamping device.
  • a heel band for clamping the upper about the heel end of the shoe'before the shoe is thus tipped
  • a support for said heel band having a stem arranged to extend lengthwise of the shoe, a member in which said stem is mounted to turn with the heel band in theltipping of the shoe, and a leaf spring arranged to hold said support and the heel band normally a predetermined position and against the resstanee of which said support and heel band,
  • the combination with a work support, of wipers arranged to engage an upper around the toe end of a last on said support and'movable to Wipe the marginal portion of the upper inwardly over the bottom of the last, said wipers being movable about an axis extending heightwise of the last to different positions in accordance with the lateral swing of the foreparts of right and left lasts, a device arranged to engage the marginal portion of the upper in the path of the wipers and to press the upper against the edges of the wipers in the wiping operation, and means supporting said device independently of the wipers for movement about an axis extending heightwise of the last in response topressure of the wipers thereon to permit the device to assume different positions corresponding to the different positions of the wipers in operating on uppers on right and left lasts.
  • the combination with a work support, of wipers arranged to engage an upper aroundthe toe end'of a last on said support and movable to wipe the marginal portion of the upper inwardly over the bottom of the last, said wipers being movable about an axis extending heightwise of the last to difierent positions in accordance with the lateral swing of the foreparts of right and left lasts, a member curved for engagement with the marginal portion of the upper around the toe end of the shoe in the path of the wipers to press the upper against the wipers in the wiping operation, and a support on which said member is movable about an axis extending heightwise of the last in response to pressure of the wipers thereon to permit it to assume different positions corresponding to the diiferent positions of the wipers in operating on uppers on right and left lasts.
  • the combination with a work support, of wipers arranged to engage an upper around the toe end of a last on said sup- .and movable to wipe the marginal portion of port and movable to wipe the marginal portion of the upper inwardly over the bottom of the last, said Wipers being movable about an axis extending heightwise of the last to different positions in accordance with the lateral swing of the foreparts of right and left lasts, a member arranged to engage the marginal portion of the upper in the path of the wipers and to press the upper against the edges of the wipers in the wiping operation, means supporting said member independently of the wipers for movement about an axis extending heightwise of the last in response to pressure of the wipers thereon to permit it to assume different positions corresponding to the different positions of the wipers in operating on uppers on right and left lasts, and spring means arranged to control said member and against the resistance of which it is thus movable by the wipers.
  • a heel-end clamping device In a lasting machine, a heel-end clamping device, a shoe support movable from an initial position to carry a shoe thereon toward said clamping device, a device for removing the shoe from said support after the lasting operation, a member movable in one direction to cause said shoe-removing device to approach the shoe and reversely movable to cause it to remove the shoe, and means for returning the shoe support to its initial position by the reverse movement of said member.
  • a heel-end clamping device In a lasting machine, a heel-end clamping device, a shoe support movable from an initial position to carry a shoe thereon toward said clamping device, the clamping device also being movable toward the shoe, a device for removing the shoe from said support after the lasting operation, a member movable in one direction to cause said shoe-removing device to approach the shoe and reversely movable to cause it to remove the shoe, and means for moving said clamping device away from the shoe by the first-mentioned movement of said member and for returning the shoe support to its initial position by the reverse movement of said member.

Description

B. JORGENSEN LASTING MACHINE Dec. 7, 1937.
Filed Dec. 18, 1936 5 Sheets-Sheet l Dec. 7, 1937. B. JORGENSEN LASTING MACHINE Filed Dec. 18, 1936 5 Sheets-Sheet 2 Dec. 7, 1937. B. JORGENSEN LASTING MACHINE Filed Dec. 18, 1956 5 Sheets-Sheet 5 igf3.
I 186 Km 464 48 Dec. 7, 1937. B. JORGENSEN LASTING MACHINE Filed Dec. 18, 1956 s Sheets-Sheet 4 llllllllllll Dec. 7, 1937. B. JORGENSEN' LASTING MACHINE 5 Sheets-Sheet 5 Filed Dec. 18, 1936 WVCWWQ Patented Dec. 7, 1 937 This-I invention relates to lasting machines,
UNITE o1 STATE LASTING MACHINE Bernhardt Jorgensen, Marblelread, Ell/lass; assignor to United Shoe Machinery Corporation,
Pat rson; N; J., a corporation'bf New Jersey Application December 18, 1936, Serial No. 116,589 7 34 Claims. (01. 12-12) s PATENT f pressure on the upper attire extreme edgeofthe on February 2, 1932.
and-has.particularly in view the provision of certain improvements in machines 'ofthe character disclosed in United States Letters Patent -No. 2,075,852, granted on April 6, 1937- upon an application I of mine, and insome respects still more fully disclosed in-earlier-Un-ited' States Letters Patent granted upon applications of -mine,
including Letters Patent No; 1,843,232, granted however, that in various novelraspects theinvention is no-tlimited to machine organizations-of that particular character.
I In acccrdance-withoneof its objects, them-- -lvention provides improved meansfor-clampi-ng anlocations. The present invention, in its illustrated embodiment, provides means for increasing the pressure of the band on the-uppefatthe sides oi the toe near its extreme end, the construction shown comprising for this purpose" spring-controlled levers whichare movableabout axes err-3 tending heightwise -of the-last relatively to other levers ion which theyare supported and which control the endportions of the band. A-further object of the invention'is to provide means' ior adjusting the band moreefiectively than heretofore for operating on shoes of different shapes, and to this end the above-mentioned spring-controlled levers are connected tothe band and are adjustable about their axes to spread variably -1 apart the portions of the band which they control. It willbe understood that while means is herein shown for thus controlling and adjusting a toe band, the invention isnot limited tomeans operating at the toe end of a-shoe;
stantially uniform in the wiping oitheupper inwardly over a convex bottom face of a. last.
As herein illustratedthefllast and shoe are controlledin such manner as to receive a predetermined'heightwise movement during the operation of toe wipers on the marginalportion of-the u p per, so thatthewipersmay operate with effective Itis to be understood, 7
Theinvention further provides a construction whereby the pressure of wiping means on the marginalportionof an upper is maintained sub-j shoe bottom and yet will notiapply excessive pressure to the upper: as th'ey are 'n oveer farther n? wardly over the shoe bottom;
'I'he toe wipers inthe co'iistruction ere n shown e as heretofore, s rm parative'iy thin plat 'which is" m0Ve'dinWard1 y' have associated with t over'therna'rginal portion ofthe upper at the ex tremeend of the'toe, so" that no portion ofthe overwiped'm'ar'gin of the :upper will be expose'df and thereforerelievedof pressure'in the closing of the wipers over theshoe bottom. In accord ance with'a further-feature of the-invention the wipers have interlocki-ng portiens constructedto; provide'a plurality offin'gers"which overlie the thin plate and press it the'upperinlocationsatdi ffeient distances from-theed'ge'of the shoe bottom when the wipers are in their closed posiunder the platefwill be subjected td adequate pressure. It will be understood "that in this feature the invention is not limited to "wipers which operate at the-toe end of a shoej The machine herein further includes,- 3
as heretofore, means fortipping the shoe laterally by engagement with the bottom of its fore-' part to position it in proper relation to, the
toe-wipers' if-jitfisi already inthat relation, and alsomeans-for clamping the shoe about its' heel end; To facilitate such tippingof the shoe, the heel-end clamping means, in accordance with the'lpres'ent i nventi n an axis ext ending lengthwise of the fshoeas the shoe is" tipped-r A s-illustrated, moreover, the:
clamping means is" controlled byaspring which is mounted to turn about hams "it "normally in --a definite position and v the tipping of the sh'oeta 'As "disclosed-- in the previously ,mentiondi Let:
againstthere'sistance of which it may 'turntin ters Patent-No. 2-,0751352, the'toe wipers "are mov-j' able-under control of the toe band about an axis" extending heightwiseof thelast to difierent posie tionsqin accordance with the lateral fswing of f the r rep'arts-er right and le it lasts,.and'the ma? chine isa'lso provided with a device for engaging theima'rginai' portion of the upper' inthep athidf the wipers to' pr'es's'it againstjthe wipers' in the wiping operation: In accordanc with another feature 'of the inventionthis-device is so mounted as, to move about an axis extending heightwise of the last to difi erent positions corresponding-:
} tothe different positionsof the wipers in DDQrata ing-on --uppers -on-- right and left lasts, thus in'- is surigng that-it'will always hear evenly andywithr adequate pressure on the portions of the upper acted upon by the different wipers.
The above and other features of the invention, including novel means for limiting the overwiping movements of the wipers, novel means for controlling the shoe support, and various novel details of construction and combinations of parts will now be more particularly described with reference to the accompanying drawings and thereafter pointed out in the claims.
In the drawings,
Fig. 1 is a view in front elevation showing mainly the upper portion of a machine in which the features of the invention are embodied, with the parts in the positions which they occupy after the heel-end clamping means has engaged the shoe but before the starting of the power operation of the machine;
Fig. 2 shows the left-hand portion of the ma.- chine, partly in elevation, as viewed from the right in Fig. l, and partly in section;
Fig. 3 is mainly a plan view of the toe-lasting mechanism, with parts of the structure removed;
Fig. 4 is a plan view showing the means for clamping the upper about the toe end of the last and for wiping it heightwise of the last, parts located above this means being removed;
Fig. 5 is a section on the line V+V of Fig. 4, showing also one of the toe wipers and associated parts with the wiper in the position which it occupies at the end of the overwiping operation;
Fig. 6 is a view similar to Fig. 5 of a portion of the structure there shown, illustrating, however, the positions of the parts substantially at the beginning of the overwiping operation;
Fig. 7 is a section on the line VII-VII of Fig. 4;
Fig. 8 shows a portion of the heel-end clamping means as viewed from the left in Fig. 1, with parts in section on the line VIII-'VIII;
Fig. 9 is a section on the line IX-IX of Fig. 1;
Fig. 10 is a section on the line X-X of Fig. 9;
Fig. 11 is a view of a portion of the machine in right-hand. end elevation;
Fig. 12 is a vertical section through the toe end of a shoe and parts closely associated therewith in the lasting operation; and
Fig. 13 is mainly a plan View, illustrating the relation of the toe wipers to the device which engages the margin of the upper in the path of the wipers. V
In view of the disclosures in the above-mentioned Letters Patent, only such portions of the complete machine as it is necessary to refer to for an understandingof the novel features of this invention are herein shown, and such parts as are common to the prior disclosures, as well as the manner of their operation, will be only briefly hereinafter described. The machine herethe toe end portion of the shoe, the side-lasting mechanisms with which machines of the illustrated type have been frequently provided heretofore and the wipers commonly used heretofore for lasting the heel end of the shoe being omitted.
The last and shoe are supported at the heel end on a block 2 (Fig. 1) having thereon a heel pin or spindle 4 which enters the spindle hole in the last, the block being supported on the head of a post 6 vertically adjustable in a holder 8. As in the construction shown in the above-mentioned Letters Patent No. 2,075,852, the block 2 is freely movable in the head of the post 6 along guideways II] which extend laterally of the shoe and are curved about a virtual axis located at or near the bottom of the heel end of the shoe, so that the shoe may be tipped laterally to position the bottom of its forepart in proper relation to the toe wipers. In the construction herein shown mechanism somewhat difierent from that provided heretofore may be utilized to effect a quick vertical'adjustment of the post 6 for shoes of different sizes or styles; This mechanism comprises a pinion 12 fast on a shaft I l mounted in bearings in the holder 8, the pinion being arranged to engage rack teeth I6 on the post 6. Fast on the shaft 14 is a crank arm I8 for turning it, this crank arm carrying a spring-pressed pin 26 arranged to enter any one of a series of holes 22 provided in a disk 24 fast on the holder 8. This holder is supported on a vertically movable slide 26 which is depressible with the shoe as heretofore against the resistance of a spring 28. The toe end of the shoe is supported on a toe rest 30 (Figs. 3 and 4) also depressible with the shoe against the resistance of spring means not herein shown but disposedin the last-mentioned Letters Patent.
Depression of the shoe in the power operation of the machine is effected as heretofore by means engaging the bottom thereof at the toe and heel ends. The means thus acting at the toe end of the shoe comprises a presser foot 32 (Figs. 1 and 12) mounted on a bracket 34 which is supported on an arm 36 and is vertically adjustable by a screw 3'5 (Fig. 2). The arm-36 is supported on vertically alined rods 38 and 40 mounted for vertical movements and for turning movements in bearings in the frame. 'The arm 36 occupies initially a position in which the presser foot 32 is retracted rearwardly from over the shoe bottom, and the operator swings the arm forwardly to carry the presser foot into position over'the shoe bottom by means of a handle 42. Such forward movement of the arm 36 serves to start the power operation of the machine, as disclosed in Letters Patent No. 1,843,232, whereupon the arm is carried downward simultaneously with the means engaging the heel end of the shoe to effect the depression of the shoe. The rod 46 (Fig. 2) is swiveled at its lower end in a coupling member 44 which is connected by a link 46 to one end of an arm 48 fast on a rock shaft 58. Also fast on this rock shaft is an arm 52 provided with a roll 54 engaged by a path cam 56 formed in one side of a cam wheel 58 on a cam shaft 60. It will thus be seen that by turning movement of the rock shaft 56 the cam 56 imparts downward movement to the arm 36 and the toe presser foot 32. By the same movement of the rock shaft 56 downward movement is imparted to the means engaging the heel end of the shoe bottom. This means comprises a heel presser foot 62 supported by a carrier 64 fast on a rod 66 mounted for vertical movements and also for turning movements in bearings in the frame of the machine. Turning movement of the rod 66 to swing the presser foot 62 from an idle position into position over the heel end of the shoe is effected in response to downward movement of the rod, as disclosed in Letters Patent No. 1,843,232. The rod 66 is swiveled at its lower end (Fig. 11) in a coupling member 68 which is connected by a link 16 to one arm of a bell-crank lever 12 mounted for turning movement on a shaft 14, the other arm of this bell-crank lever being connected by a link it to' an arm 18 fast on the previously mentioned rock shaft 50. It will thus be seen that this rock shaft serves to move both the toe presser foot 32 and the heel presser foot 62 downward simulteeth 82 on the rod. The pinion is formed on a shaft 84 mounted in a bearing in the carrier 64,
and fast on one end of this shaft is an arm 86 for turning it. Carried by the arm 86 is a springpressed pin 88 arranged to enter any one of a series of holes in the carrier 64 to hold the presser foot in adjusted position. A series of numbers opposite the holes 90, as shown in Fig. l, assist the operator in determining when the presser foot is properly adjusted.
The toe-lasting mechanism includes as heretofore, a slide 92 (Fig. 1) adjustable in directions lengthwise of the shoe, and a casting 94 adjustable on the slide 92 about an axis extending laterally of the shoe. Supported on the casting 94 is means generally similar to that disclosed in the previously mentioned Letters Patent No. 2,075,852 for clamping the upper around the toe end of the last and for wiping the upper upwardly as the last and shoe are forced downwardly in the manner'above described. This means comprises a block 96 (Fig. l) fast on the casting 94 and serving as a support for a pair of levers 98 pivotally mounted between their ends on pinsgI00 on the block 96. A comparatively long arm of each lever 98 serves as a support for a block I02 which inthe construction herein shown has a cylindrical shank portion I04 (Fig. 5) mounted in a bearing in the lever 98to permit the block to turn about an axis extending heightwise of the shoe.
The two blocks I02 have inclined slots therein to receive the the end portions of a flexible toe band I08 for engaging the shoe and wiping the upper upwardly. Supported on the upper fiat face of the block 96 are applurality of slides extending in a series lengthwise of the edge of the shoe bottom between the two blocks I 02 and also having inclined slots therein to receive the band I06. As shown in Fig. 4, there are six of these slides I08 located opposite the end of the toe of the shoe, and between these slides and each block I02 are three additional slides H0, H2 and H4 located opposite the sides of the toe. The several slides are controlled by a coil spring IIB extending around the toe and mounted in recesses in their outer sides in the manner illustrated in Fig. 7.
This spring tends to force the slides inwardly toward the shoe while permitting them to be forced outwardly by pressure of the shoe on the toe band. The end blocks I02 are also'yieldingly controlled as heretofore to permit them to be forced apart by wedging action of the shoe on the hand. For this purpose a comparatively short arm of each lever 98 has rotatably mounted therein a stud H8 provided below the arm with a block I20 through which extends a rod I22, one end of this rod having thereon screw threads engaging corresponding threads in one of the blocks and the intermediate portion of the rod being mounted to turn in the other block. A spring I24 located between the last-mentioned block I20 and a .ot e toadiust the ends of: e. b nd r shoes different widths. It will further be evident that both the band-supporting arms may swing in the same direction laterally of a shoe to permit the band to adjust itself to the toe ends of right and left shoes the heel ends of which occupy substantially the same positions in the machine.
By reference to Fig. 4 it will be evident that the coil spring H6, by reason of its relation to the different slides which it controls, opposes somewhat less resistance to outward movements of the slides H0, H2 andII4 located opposite the sides of the toe near its extreme end than to outward movements of the slides I08 opposite the end of the toe. The present invention accordingly provides means for'increasing the resistance to outward movement of the slides H0, H2 and I I4. For this purpose there is supported on a lug I32 (Fig. 5) on the end of each of the band supporting arms of the levers "98 a bell-crank lever I34 mounted to swing about a pin I 38 extending through the lug. An arm I38 of this.
bell-crank'lever is pivotally connected by a stud M0 (Fig. 4) to a block I42 the opposite ends of.
which are pivotally connected by studs I44 and M6 to the slides H0 and H4, respectively. It will thus be seen that the arm I38 is connected to both these slides by means permitting relative inward or outward movements of the two slides. Mounted in the other'arm I48 of the bell-crank lever I34 is a spring I50 one end of which is seated in a socket in the block I02. This spring accordingly tends to swing the bell-crank'lever in the direction to force the slides I I0 and H4 inwardly toward the shoe, and therefore opposes increased resistance to outward movements of these slides. While notdirectly connected to the slide I I2, the block I42 controls this slide through the comparatively stiff toe band I06 mounted in slots in the several slides. A screw I52 threaded in each bell-crank lever I34 is arranged to engage an arm I54 integral with the lever 98 to limit movement of the bell-crank lever by the spring I50 when'there is no shoe in the machine. These screws serve in addition to the hand wheel I30 to adjust the toe band for shoes of different shapes. .By turning the screws, for example, in
directions to swing the bell-crank levers I34 against the resistance of the springs I50 the slides H0 and II 4 are moved in outward directions to spread farther apart portions of the toe band located opposite the sides of the toe near the end thereof without affecting the spacing of the ends of the band controlled by the hand wheel I550. The studs I40 are mounted in the blocks I42 somewhat nearer the slides [I0 than the slides II l, so that the levers I34 in this adjustment of the toe band act with greater force on portions of the band located substantially opposite the corners of the toe than on portions controlled by the slides II4.
The construction herein shown includes means for adjusting thetension of, the coil spring H6 shoe. For this purpose each end of the sprin'gis connected by a wire loop I58 to an eye-bolt I58 mounted in a lug I60 on the bell-crank lever I34 .an eccentric an axis located substantially at the junction of 1 their wiping edges. The wiper carrier is provided as heretofore with a thin plate I'IU, shown in dotted lines in Fig. 3, which underlies portions of the wipers and moves with them over the end of the toe so that no portion of the margin of the upper at the end of the toe will be exposed and therefore relieved of pressure when the wipers close. In order to hold this thin plate firmly against the margin of the upper the wipers have interlocking portions comprising, on each wiper, a plurality of curved fingers I72 'whichextend into corresponding recesses in the other wiper when the wipers are in their open positions and hold the plate I10 pressed down on the upper in locations at different distances from the edge of the shoe bottom when the wipers are closed over the shoe bottom. The wiper carrier IE6 is operated to advance the wipers lengthwise of the shoe by a gear sector I'M fast on a rock shaft I16 mounted in the casting 94 and operated by the same means as heretofore in machines of the illustrated type. The wipers are closed laterally of the shoe by slides I18 mounted in guideways in the casting 94 and operated by rack bars I813, these rack bars being operated by gear sectors I82 on the rock shaft I16. In the construction herein shown these rack bars are connected yieldingly to the slides IIB for a purpose hereinafter described. The yielding connection between each rack bar and slide comprises a spring I84 mounted between one end of the slide and an upstanding lug I86 on the rack bar. Extending through the lug and the spring and threaded in the slide I78 is a screw I88 the head of which serves by engagement with the lug I86 to determine the initial relation of the rack bar and the slide.
The connections between the slides I78 and the wipers are substantially as disclosed in Letters Patent No. 2,075,852. Each slide is connected by a link I90 to a member I92 mounted to turn about I96 controlled as hereinafter described, and the member I92 is connected by a link I and a pivot pin I98 to the wiper I64. It will thus be seen that as the wipers are advanced lengthwise of the shoe they are closed laterally of the shoe by the slides I18 which act thereon through the links I913, the members I92 and the links I95, the members I92 turning about the eccentrics I95. The eccentrics I93 are parts of mechanisms of the same character as disclosed in the last-mentioned Letters Patent for swinging the two wipers IM simultaneously in one direction or the other about the axis of their closing movements to adjust them in accordance with the swing of the forepart of a. right or a left last in response to a similar swinging movement'of the toe band I86 when a shoe is forced downwardly within the toe band. Each of these mechanisms includes a link 208 one end of which is connected to one of the band-controlling levers 98 through an upward extension of the pin I35, as shown in Fig. 5, the other end of the link being connected to a plate 202 which is integral with the eccentric I94. Accordingly, if the end poritions of the toe band I06 are swung, for example to the right (Fig. 3) by the action of the shoe movement of the band to turn the eccentrics I9 1 in counterclockwise directions, and by such movements of the eccentrics the members I92 mounted thereon areswung about their connections with the links I58 and act through the links I95 to swing the wipers I64 in the same direction as the ends of the toe band. Thereafter, as the wipers begin their operative movements, the eccentrics I94 are locked against any such displacement as might affect the pressure of the toe band on the shoe by pawls 204 acting on ratchet teeth on the plates 202. These pawls are held out of engagement with the ratchet teeth by the action of the links I90 on screws 2% on the pawls until the slides I'EB begin their operative movements, whereupon the pawls are forced against the ratchet teeth by springs 208.
The bottom of the forepart of a last is usually somewhat convex in directions widthwise of the last, as shown in Fig. 5. It will be evident that if such a last is held stationary relatively to wipers operating in a single plane the pressure of the wipers on the margin of the upper will increase progressively as the wipers are moved inwardly over the insole if the wipers engage the upper initially at the extreme edge of the insole. The present invention further provides a construction such that the wipers, acting on the upper with adequate pressure at the extreme edge of the insole, will not apply excessive pressure thereto as they are moved farther inwardly. For this purpose the cam 56 (Fig. 2) which, as previously described, imparts the shoe-depressing movement to the toe presser-foot 32 and the heel presser-foot 62 is so formed, as indicated at a, as to depress the shoe somewhat during the overwiping move-' ment of the wipers. The toe presser-foot 32 will be so adjusted that when the wipers begin to wipe the margin of the upper inwardly over the insole they will apply adequate pressure thereto, as illustrated in Fig. 6, and by the action of the cam 56 as they are moved farther inwardly the shoe is depressed sufficiently to cause the pressure of the wipers on the upper to remain substantially uniform, as illustrated in Fig. 5. Further to insure this result at both sides of the shoe bottom, each wiper'in the construction herein shown carries a, roll 2H) arranged to engage a shoulder 2 I 2 on the block I92 which supports the toe band. The closing movements of the wipers, therefore, are limited by the shoe so that they will close inwardly equal distances from the opposite side edges of the shoe bottom. When the movements of the wipers are thus stopped, any further movement of the rack bars I89 serves merely to compress the springs I84.
As in the construction shown in Letters Patent No. 2,075,852, the wipers I 64 are maintained in a heated condition to render them more effective in'wiping the margin of the upper free from wrinkles and to accelerate the hardening or setting of adhesive whereby the upper is secured to the insole. For this purpose there are provided electrically heated plates 2M (Figs. 2 and 5) fastened 'to a cover plate on the casting 94 and in sliding contact with extended fiat upper faces 2I6 (Fig. 3) on the links I96, these links having also lower fiat faces in sliding contact with the wipers. For better insurance of effective contact of the heating plates 2M with the links and of the links with the Wipers, there are fastened to the casting 94 upwardly extending brackets 2I8 and 220 (Fig. 2) the upper ends of which extend to positions over'th'e portions of the plates 2I4 which'engage' the links I96 and carry set screws bearing downwardly on these plates. The set screw on the bracket 2 l 8 is shown at 222 in Fig. 2, and the set screw on the bracket 228 is shown at 224 in Fig. 5. It will be understood that these screws may be adjusted as desired. ,7
- The machine is further provided with means constructed for the most part as shown in Letters Patent No. 2,075,852 which, by engagement with the bottom of the forepart of the shoe, will tip the shoe laterally to insure that both sides of the toe end of the shoe bottom will be at the same height relatively to the Wipers if the shoe is not already properly positioned in that respect. This means comprises a member 226 (Figs. 2 and 12) formed to engage'the opposite sides of the forepart of the shoe bottom and mounted for upward and downward swinging movements on the previously mentioned bracket 34 on the arm 36. This member is controlled by two pivotally connected links 228 and 230 which are held normally in substantialalinement by a spring 232 toposition the member 226 for engagement with the bottom of the shoe before the presser foot 32 engages it. The shoe is thus properly positioned by the member 226 before it is moved downward to any substantial extent, whereupon this member is withdrawn from contact with the shoe bottom by swinging the links 228 and 230 out of alinement, as illustrated in Fig. 12. For this purpose the link 236 is fast on a shaft 234 mounted in the bracket 34, and also fast on this shaft in the construction herein shown is an arm 236 (Fig. 2) provided with a roll 238- arranged to engage the top face of a 35 relatively stationary block 246 just as the shoe is properly positioned by the member 226, so that in the further downward movement of the arm 36 the member 226 will be lifted by the turning of the shaft 234. The block 248 has a depending portion movable in a guideway in the previously mentioned bracket 220, as shown in Fig. 3, and the block is adjustable upwardly or downwardly by means of an arm 242 mounted on a pin 244 on the bracket 226, the arm being provided with a stud 246 which extends into a slot in the. depending portion of the block. The arm 242 carries a spring-pressed pin 248 arranged to enter any one of a number of holes in the bracket 220 to maintain the block 246 in adjusted position.
In general similarityto the disclosure of Letters Patent No. 2,075,852, the machine herein shown is also provided with means for pressing the toe end of the insole down on the bottom of the last and for engaging the margin of the upper in the-path of the toe wipers I64 and pressing it against the wipers for better insurance that the upper will be wiped tightly and smoothly inward over the insole. This means comprises a member 256 (Figs.
'1, 12 and 13) curved'in general similarity to the edge of the toe end of the insole and supported on a yoke 252 which is yieldable upwardly against the resistance of a spring 254 in the handle 42. As shown in Fig. l, the member 258 is positioned initially somewhat lower than the presser foot 32 to insure that it will engage and press the toe end of the insole down on the last under the influence of the spring 254. As shown in Figs. 12 and 13, the member 256 in its operative position on the insole is in the path of the toe wipers so that it "will press the marginof the upper against thebe lifted against the resistance of the spring 254 by the wedging action of the wipers thereon to permit the margin of the upperto be wiped down upon the insole beneath it.
Reference has previously been made herein to the fact that the toe wipers are automatically adjusted about an axis extending heightwise of the shoe through connections with the toe band I06 so as to assume different positions for operating on right and left shoes. To insure that the member 250 will press the margin of the upper effectively against the edges of the wipers all around the toe end of the shoe bottom in operating on either a. right or a left shoe, this member in the construction herein shown is so supported on the yoke 252 as to permit it to be adjusted about an axis extending heightwise'of the shoe in response to pressure of the wipers thereon. For this purpose the member 250 is mounted on a block 258 (Fig. 12) provided with an upwardly extending pin260 rotatable in a socket in the yoke 252. Accordingly, if the member 250 is not positioned symmetrically with respect to the toe end of the insole, pressure of one or the other of the wipers against it in the wiping of the margin of the upper inwardly over the insole will turn it to such a position about the axis of the pin 268, as will be evident by reference to Fig. 13. The member 250 is also movable as heretofore about an axis extending laterally of the shoe to permit it to adjust itself to the shoe bottom, the member and the block 258 being connected for this purpose by- A spring 264, connected at one a pivot pin 262. end to the yoke 252 and at its other end to the member 250 at the left-hand side (Fig. 12) of the pin 262, serves normally to support the member and the block 258 on the yoke and also tends to centralize the member with respect to turning movement about the axis of the pin 26!). In order to render the spring 264 more effective in' the latter respect, it is engaged at its opposite ber 250 which are located farthest from the endof the toe. This is advantageous if. as shown. the pin 262 is located comparatively near that portion of the member 250 which is at the extreme e d of the toe, since if it were not for the sprin'g'264 the member 250 under these conditions would act with somewhat less pressure on the shoe materials in locations farthest from the end of the toe than in other locations.
The shoe is clamped about its heel end, as heretofore, bya flexible heel band 268 whichassists in controlling it in the toe-lasting operation, this heel band being carried by a slide 210 movable in directions lengthwise of the shoe along rods 212, one of which is shown in Fig. 1, supported by the vertically movable slide 26. In the construction herein shown the heel band is supported at its ends by twr arms 214 (Figs. 1 and 8) mounted to swing about pins 216 on a bracket 218 which is provided with a horizontal stem 280 rotatable in a socket formed in a holder 282., The intermediate portion of the band is Between the inner end of the stem 288 and the end of the socket in the holder 282 is a ball thrust bearing 284. The stem 288 is held in the socket by a cap screw 286 extending through an opening in the holder 282 and threaded in the end of the stem. This construction permits the heel band 268 to turn about 'an axis extending lengthwise. of the shoe when the shoe is tipped laterally by the forepart-engaging member 226 as previously described, and accordingly facilitates such tipping of the shoe. The holder 282 has a depending shank portion 288 vertically movable in a guideway in the slide 218 to permit adjustment of the heel band in directions height- Wise of the shoe for shoes of different sizes or shapes. Such adjustment is effected by an arm 298 (Fig. 8) mounted for vertical swinging movements about a stud 292 on the slide 210 and provided with a pin 294 lying in a horizontal slot 296 in the shank 288. A-spring-pressed pin 298 carried by the arm 298 is arranged to enter any I one of a number of holes 388 in the slide 216 to hold the heel band in adjusted position. Any turning movement of the heel band about the axis of the stem 280 is effected against the re- :sistance of a comparatively light leaf spring 382 the upper end-of which lies in a slot formed in a depending lug 384 of the bracket 218 and the lower end of which is secured to lugs 386 on the depending shank portion ,288 of the holder 282.
The heel band 268 is held initially in a retracted position, as heretofore, by a latch 383 (Fig. -1) in engagement with a shoulder on the lower end of the slide 218, and this slide and the heel band are moved toward the shoe by a spring 3"] when the slide is released by the latch. Such release is effected by the operator prior to the starting of the power operation of the machinerby downward movement of an arm 3l2 which carries the latch, this arm being mounted on a stationary bracket 313. The holder 8 which supports the last pin 4 as hereinbefore described is movable in directions lengthwise of the shoe along a guideway in the slide 26, and is controlled by a spring 3! acting thereon through a link 3 l6, as more fully disolosed in Letters Patent No. 2,026,539, granted on January '7, 1936 upon an application of mine. A latch 3l8 is arranged to maintain the holder 8 initially retracted farther to the left than shown in Fig. 1, and near .the' end of the movement of the slide 210 by the spring 3| 8 to carry the heel band toward the shoe a screw 328 carried by this slide acts on the latch 3I8 to release the holder 8 to the action of the spring 3l4, whereupon this spring moves the g holder toward the right and forces the heel end of the shoe against the heel band. For a more complete understanding of the construction and operation of these parts the last-mentioned Letters Patent may be referred to.
; 1 As disclosed in the previously mentioned Letters Patent No. 1,843,232, the machine is provided with automatic means for removing the shoe fromthe shoe support after the lasting operations have been completed, comprising an os- 5.cillatory shoe-carrying arm 322 (Fig. 11) having thereon a shoe-gripping device 324, the arm being mounted on a rock shaft 326 for swinging movement into position for the device 324 to grip the shoe on the shoe support and for reverse 70 swinging movement to carry the shoe to a position in which it is released. The arm is swung into position to grip the shoe by downward movement of a rack bar 328 engaging a pinion 333 on the rock shaft 326, the downward movement 75. of the rack bar being effected by similar movement of a link 332 connected to its lower end. The removal of the shoe from the shoe support is effected by reverse upward movement of the rack bar and the link. In order to insure that the heel band will be withdrawn from the shoe 5. before the device 324 arrives in position to grip the shoe, movement of the slide 218 toward the right (Fig. 1) into position to be held by the latch 388 is effected by the downward movement of the link 332, as disclosed in Letters Patent 10 No. 1,979,269, granted on November 6, 1934 upon an application of mine. For this purpose the link 332 carries an arm 334 which in the downward movement of the link engages a turn-buckle 336 on a rod 338 connected by a chain 348 to the 15 slide 218. It is desirable, however, that no return movement toward the left (Fig. 1) be imparted to the last pin holder 8 until after the shoe has been removed from the shoe support by the reverse swinging movement of the arm 322 effected by 20,
upward movement of the link 332. Accordingly, in the construction herein shown the arm 334 is further utilized to effect such return of the holder 8 when the arm has nearly completed its upward movement, the shoe having then been 25;
removed from the shoe support. The previously mentioned link 3|6 connected to the holder 8 is pivotally connected to an arm 342 (Fig. l) mounted to swing on the bracket 3l3 and geared to another arm 344 also mounted to swing on the 30,.
the arm 344. As the parts are shown in Fig. 1, 40,
the bar 346 is at such a height that the plate 354 is at the right of the plate 356. Near its lower end the bar 346 is provided with a second slot 358 in which lies a pin 368 carried by the arm 334, this pin having a head thereon to hold the 457 bar. in proper relation to the arm. A springpressed pin 362 in the lower end of the bar 343 serves as a buffer upon engagement of the pin 368 therewith in the downward movement of the arm 334. By reference to Fig. 11 it will be seen that with the parts positioned as indicated in Fig. 1, the heel band having been applied to the shoe and the holder 8 released by the latch 3l8, the pin 348 is substantially midway between the upper and lower ends of the slot 358 and the pin 368 is at the upper end of the slot 358. Accordingly, when the arm 334 is moved downwardly during the swinging of the shoe-removing device toward the shoe and acts through the rod 338 to return the slide 218 which carries the heel 0.
band, the pin 368 is first moved downwardly along the slot 358 and thereafter acts to lower the bar 348 to such a position that the plate 354 at its upper end snaps under the plate 356 on the arm 344. Such downward movement of the bar is limited by the pin 348. When the arm 334 is thereafter moved upwardly as the shoe is carried away from the shoe support, the pin 368 first moves idly along the slot 358 until it arrives at the upper end of the slot and then serves to raise the bar 346. As the bar is thus raised its plate 354 acts on the plate 356 to swing the arm 344 in the direction to return the holder 8 toward the left into position to be held by the latch 3l8. Further upward movement of the A leaf spring 352 fast on 35;
bar 346 thereafter causes the plate354 to slip past the lower edge of the plate 356, thus releasing the arm 3% so'that when the latch 3l8 is operated to release the link 316 in operating on the next shoe the holder B will be free to be moved toward the right by the spring 3 I4.
-The manner of operation of the novel mechanisms provided by the present invention will be fully understood from the foregoing description, and accordingly no further explanation thereof is necessary for a full understanding of the invention.
Having described the invention, what I claim as new and desire to secureby Letters Patent of the United States is:
1. In a lasting machine, a flexible band for clamping a shoe upper around an end of a last, members mounted for movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, and other members supported by said firstnamed members and mounted to swing relatively thereto independently of said end-pressing means about axes extending heightwise of the last for pressing other portions of the band against the upper;
2. In a lasting machine, a flexible band for clamping a shoe upper around an end of a last,
members mounted for movements widthwise of the last and having thereon means for pressing the end portions of said hand against the upper,
.levers'supported by said members and movable relatively thereto independently of said endpressing means about axes extending heightwise of the last for pressing other portions of the band against the'upper, and springs tending to swing said levers -in the directions to apply such pressure to the band.
3. In a lasting machine, a flexible band for clampinga shoe upper around an end of a last, spring-controlled levers mounted for swinging movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, other levers supported by said first-named levers and movable relatively thereto independently of said endpressing means about axes extending heightwise of the last for pressing against the upper portions of the band located farther from its ends, and springs tending to swing said other levers relatively to said first-named levers in directions to press the band against the upper.
' 4. In a lasting machine, a flexible band for clamping a shoe upper around an end of a last, spring-controlled levers arranged to extend lengthwise of the last and mounted for swinging movements widthwise of the last, blocks supported on said levers for pressing the end portions of said hand against the upper, bellcrank levers also supported on said first-named levers to swing relatively thereto about axes extending heightwise of the last, said bell-crank levers having arrns arranged to press against the upper portions of the bandlocated farther from its ends then sa d blocks. and springs arranged to bear on said blocks and to act on the other against the upperportions of the band located farther from its ends than said end-pressing means, and spring-controlled levers supported by said first-named levers and movable relatively thereto to operate said members.
6. In a lasting machine, a flexible band for clamping a shoe upper around an end of a last, members mounted for movements wiclthwise of the last and having thereon means for pressing the end portions of said band against the upper, a plurality of slides supported independently of said members for movements to press other portions of said band against the upper, and spring-controlled levers p-ivotally mounted on said members for forcing said slides inwardly toward the upper.
7. In a lasting machine, a flexible band for clamping a shoe upper around an end of a last, members mounted for movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, a plurality of slides for pressing other portions of said band. inwardly against the upper at each side of the end of the last, levers supported on said members to swing relatively thereto about axes extending heightwise of the last to control said slides, members pivotally connected; tosaid levers and also to the slides controlled thereby, and springs arranged to act on said levers to force said last-named members and the slides inwardly toward the last.
8. In a lasting machine, a'flexible band for clamping a shoe upper around an end of a last, a plurality of members arranged to extend in a series around the end of the last in locations opposite the end and side faces of the last to control said band, a coil spring extending lengthwise of the edge of the shoe bottom around the series of members to hold the band pressed yield- .ingly against the upper, and additional means a plurality of slides arranged to extend in a series around the end of the last in locations opposite the end and side faces of the last and mounted for movements relatively toone another toward the last to press the hand against the upper, a coil spring extending lengthwise of the edge of the shoe bottom around the series of slides to force them inwardly toward the upper, and additional spring means arranged to act on a plurality of said slides located opposite the side faces of the last to increase the pressure of the band on the upper in those locations.
10. In a lasting machine, a flexible band for clamping a shoe upper around an end of a last, spring-controlled levers mounted for swinging movements widthwise of the last and having thereon means for pressing the, end portions of said hand against the upper, a plurality of members arranged to extend in a series around the end of the last in locations opposite the end and side faces of the last for pressing other portions of said band against the upper, a coil spring extending lengthwise of the ed e of the shoe bottom around the series ofv members to force them inwardly toward the up e and spring-controlled devices supported by said levers and movable relatively thereto for applying additional inward pressure to a plurality of said members located opposite the side faces of the last.
11. In a lasting machine, a flexible band for clamping a shoe upper around an end of a last, levers mounted for swinging movements widthwise of the last and having thereonmeans for pressing the end portions of said band against the upper, a plurality of slides arranged to ex-' tend in a series around the end of the last in locations opposite the end and side faces of the last for pressing other portions of the band inwardly against the upper, a coil spring extending lengthwise of the edge of the shoe bottom around the series of slides for forcing them inwardly toward the upper, and springecontrolled levers supported by said first-named levers and movable relatively thereto about axes extending heightwise of the last for applying additional inward pressure to a plurality of said slides located opposite the side faces of the last.
12. In a lasting machine, a flexible band for clamping a shoe upper around an end of a last, members arranged to control the end portions of said band and to maintain said end portions nor mally at a predetermined distance from each other, and devices connected to other portions of said band located farther from its ends than said members and adjustable to spread said other portions variably apart without substantially altering the distance between the end portions of the band.
13 In a lasting machine, a flexible band for clamping a shoe upper around an end of a last, members mounted for movements widthwise of the last and having thereon means for variably spacing the end portions of said band from each other, and devices supported by said members and adjustable relatively thereto for variably spreading apart portions of the band located at substantial distances from its ends. 7
14. In a lasting machine, a flexible band for elamping a shoe upper around an end of a last, members mounted for movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, other members supported by said first-named members and mounted to swing relatively thereto about axes extending heightwise of the last for pressing other portions of the band against the upper opposite the sides of the last, connections between said other members and the band, and means for adjusting said other members about their axes for variably spreading said other portions of the band apart.
15. In a lasting machine a flexible band for clamping a shoe upper around an end of a last, spring-controlled levers mounted for swinging movements widthwise of the last and having thereon means for pressing the end portions of said band against the upper, other levers supported by said first-named levers and movable relatively thereto about axes extending heightwise of the last for pressing against the upper other portions of the band located opposite the side faces of the last, springs tending to swing said other levers relatively to said first-named levers in directions to press the band against the upper, connections between said other levers and the band, and means for adjusting said other levers against the resistance of said springs to spread said other portions of the band variably apart.
16. In a lasting machine, a flexible band for clamping a shoe upper around an end of a last, spring-controlled levers arranged to extend lengthwise of the last and mounted for swinging movements widthwise of the last for pressing the end portions of said band against the upper, a plurality of slides connected to other portions of said band opposite the side faces of the last, other levers supported by said first-named levers and movable relatively thereto about axes extending heightwise of the last, connections between said other levers and said slides, springs tending to s ing aid other levers in directions to force the slides inwardly toward the upper, and means for adjusting said other levers against the resistance of said springs for variably spreading apart the portions of the band to which said slides are connected. n r I 17-. In a lasting machine, wiping means for wiping the marginal portion of an upper inwardly over a convex bottom face of a last, and means for eifecting a predetermined amount of relative movement of said wiping means and the last heightwise of the last in automatically determined time relation to the wiping operation to maintain the pressure of the wiping means on the marginal portion of the upper substantially uniform during that operation.
18. In a lasting machine, wipers movable to wipe the marginal portion of an upper around an end of a last inwardly over a convex bottom face of the last, and automatic means for imparting'to the last a predetermined amount of heightwise movement relatively to said wipers in the wiping operation to maintain the pressure of the wipers on the marginal portion of the upper substantially uniform during their wiping movements.
19. In a lasting machine, wipers movable to wipe the marginal portion of an upper around an end of a last inwardly over a convex bottom face of the last, mechanism for moving the last heightwise by pressure on its bottom face, and a cam for operating said mechanism, said cam being so formed as to impart to the last in the course of the wiping movements of the wipers a movement of such extent as to maintain the pressure of the wipers on the marginal portion of the upper substantially uniform during the wiping operation.
20. In a lasting machine, wipers for Wiping the marginal portion of an upper around an end of a last inwardly over the bottom of the last, said wipers being movable bodily lengthwise of the last and also mounted for swinging or closing movements widthwise of the last, and a comparatively thin plate movable lengthwise of the last with said wipers in engagement with the marginal portion of the upper at the extreme end of the last, said wipers having interlocking portions constructed to provide a plurality of fingers arranged to overlie said thin plate and press said plate upon the upper in locations at different distances from the edge of the shoe bottom when the wipers are in closed positions over the shoe bottom.
21. In a lasting machine, wipers for wiping the marginal portion of an upper around an end of a last inwardly over the bottom of the last, said wipers being movable bodily lengthwise of the last and also mounted for swinging or closing movements widthwise of the last, and a comparatively thin plate movable lengthwise of the last with said wipers in engagement with the marginal portion of the upper at the extreme end of the last, each of said wipers being provided with a plurality of curved fingers arranged to extend into corresponding recesses in the other wiper when the wipers are in their open positions and to overlie said thin plate and press said plate upon the upper when the wipers are in their closed positions over the shoe bottom.
22.- In a lasting machine, a device for clamping an upper around the toe end of a last and'for wiping the upper heightwise of the last, wipers mounted for closing movements widthwise of the last, operating mechanism for maintaining said wipers in open positions out of engagement with the sides of the shoe during the wiping of the upper heightwise of the last and for thereafter a closing them to wipe the marginal portion of the toe end of the upper inwardly over the bottom of the last, and stops on said wipers for limiting their closing movements by engagement with said clamping device, said wiper-operating mechanism including spring means yieldable upon engage- .ment of said stops with the clamping device.
23. In a lasting machine, a device-for clamping an upper around the toe end of a last and for wiping the upper heightwise of the last, wipers erating the wipers after the wiping of the upper heightwise of the last, rack bars also movable lengthwise of the shoe, and springs arranged to operate said slides by the movement of the rack barsand yieldable upon engagement of said stops with the clamping device.
24. In a lasting machine, the combination with a shoesupport, and means for wiping the marginal portion of the upper of a shoe on said support inwardly over the bottom of the shoe at the forepart, of a device for engaging the bottom of the forepart of the shoe and for tipping the shoe laterally into proper relation to said wiping means if it is not already in that relation, and means for clamping the upper about the heel end of the shoe before the shoe is thus tipped, said clamping means being mounted to turn about an axis extending lengthwise of the shoe in the tipping of the shoe. 7
25. Ina lasting machine, the combination with a shoe support, and means for wiping the marginal portion of the upper of a shoe on said support inwardly over the bottom of the shoe at the forepart, of a device for engaging the bottom of the forepart of the shoe and for tipping the shoe laterally into proper relation to said wiping means if it is not already in that relation, a heel band for clamping the upper about the heel end of the shoe before the shoe is thus tipped, a support for said heel band having a stem arranged to extend lengthwise of the shoe, and a member in which said stem is mounted for turning movement with the heel band in the tipping of the shoe.
26. In a lasting machine, the combination with a shoe support, and means for wiping the marginal portion of the upper of a shoe on said support inwardly over the bottom of the shoe at the fo-repart, of a device for engaging the bottom of the forepart of the shoe and for tipping the shoe laterally into proper relation to said wiping means if it is not already in that relation, means for clamping the upper about the heel end of the shoe before the shoe is thus tipped, said clamping means being mounted for movement about an axis extending lengthwise of the shoe in the tippring of the shoe, and spring means arranged normally to hold said clamping means in a predetermined position and against the resistance of which the clamping means is movable about said axis.
27. In a lasting machine, the combination with a shoe support, and means for wiping the marginal portion of the upper of a shoe on said support inwardly over the bottom of the shoe at the forepart,
of a device for engaging the bottom of the forepart of theshoe and for tipping the shoe laterally into proper relation to said wiping means if it is not already in that relation, a heel band for clamping the upper about the heel end of the shoe'before the shoe is thus tipped, a support for said heel band having a stem arranged to extend lengthwise of the shoe, a member in which said stem is mounted to turn with the heel band in theltipping of the shoe, and a leaf spring arranged to hold said support and the heel band normally a predetermined position and against the resstanee of which said support and heel band,
aremovable about the axis of said stem when the shoe is tipped.
28. In a lasting machine, the combination with a work support, of wipers arranged to engage an upper around the toe end of a laston said support the upper inwardly over the bottom of the last, said wipers being movable about an axis extend- .ing heightwise of the last to difierent positions in accordance with the lateral swing of the forepartsof right and left lasts, and a device supported independently of said wipers for engaging in the wiping operation, said device being movable about an axis extending heightwise of the last to differentpositions corresponding to the different positions of the wipers in operating on uppers on right and left lasts.
29. In a lasting machine, the combination with a work support, of wipers arranged to engage an upper around the toe end of a last on said support and'movable to Wipe the marginal portion of the upper inwardly over the bottom of the last, said wipers being movable about an axis extending heightwise of the last to different positions in accordance with the lateral swing of the foreparts of right and left lasts, a device arranged to engage the marginal portion of the upper in the path of the wipers and to press the upper against the edges of the wipers in the wiping operation, and means supporting said device independently of the wipers for movement about an axis extending heightwise of the last in response topressure of the wipers thereon to permit the device to assume different positions corresponding to the different positions of the wipers in operating on uppers on right and left lasts.
30. In a lasting machine, the combination with a work support, of wipers arranged to engage an upper aroundthe toe end'of a last on said support and movable to wipe the marginal portion of the upper inwardly over the bottom of the last, said wipers being movable about an axis extending heightwise of the last to difierent positions in accordance with the lateral swing of the foreparts of right and left lasts, a member curved for engagement with the marginal portion of the upper around the toe end of the shoe in the path of the wipers to press the upper against the wipers in the wiping operation, and a support on which said member is movable about an axis extending heightwise of the last in response to pressure of the wipers thereon to permit it to assume different positions corresponding to the diiferent positions of the wipers in operating on uppers on right and left lasts.
31. In a lasting machine, the combination with a work support, of wipers arranged to engage an upper around the toe end of a last on said sup- .and movable to wipe the marginal portion of port and movable to wipe the marginal portion of the upper inwardly over the bottom of the last, said Wipers being movable about an axis extending heightwise of the last to different positions in accordance with the lateral swing of the foreparts of right and left lasts, a member arranged to engage the marginal portion of the upper in the path of the wipers and to press the upper against the edges of the wipers in the wiping operation, means supporting said member independently of the wipers for movement about an axis extending heightwise of the last in response to pressure of the wipers thereon to permit it to assume different positions corresponding to the different positions of the wipers in operating on uppers on right and left lasts, and spring means arranged to control said member and against the resistance of which it is thus movable by the wipers.
32. In a lasting machine, the combination with a work support, of wipers arranged to engage an upper around the toe end of a last on said support and movable to wipe the marginal portion of the upper inwardly over an insole on the last, a device arranged to press the insole around the end and along the sides of the toe upon the bottom of the last and also to engage the marginal portion of the upper in the path of the .wipers and to press the upper against the Wipers in the wiping operation, said device being mounted for movement about an axis extending width- Wise of the last to permit it to adjust itself to the shoe bottom, and a spring tending to swing the device about said axis in ,a direction to increase the pressure on the shoe of the portions of the device which are located farthest from the end of the toe.
33. In a lasting machine, a heel-end clamping device, a shoe support movable from an initial position to carry a shoe thereon toward said clamping device, a device for removing the shoe from said support after the lasting operation, a member movable in one direction to cause said shoe-removing device to approach the shoe and reversely movable to cause it to remove the shoe, and means for returning the shoe support to its initial position by the reverse movement of said member.
34. In a lasting machine, a heel-end clamping device, a shoe support movable from an initial position to carry a shoe thereon toward said clamping device, the clamping device also being movable toward the shoe, a device for removing the shoe from said support after the lasting operation, a member movable in one direction to cause said shoe-removing device to approach the shoe and reversely movable to cause it to remove the shoe, and means for moving said clamping device away from the shoe by the first-mentioned movement of said member and for returning the shoe support to its initial position by the reverse movement of said member.
BERNHARDT J ORGENSEN.
US116589A 1936-12-18 1936-12-18 Lasting machine Expired - Lifetime US2101069A (en)

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