US2096761A - Machine for operating on stitchdown shoes - Google Patents

Machine for operating on stitchdown shoes Download PDF

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Publication number
US2096761A
US2096761A US109133A US10913336A US2096761A US 2096761 A US2096761 A US 2096761A US 109133 A US109133 A US 109133A US 10913336 A US10913336 A US 10913336A US 2096761 A US2096761 A US 2096761A
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last
sole
wipers
shoe
grippers
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US109133A
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Ricks Fred
James Cyril Harry
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D113/00—Machines for making shoes with out-turned flanges of the uppers or for making moccasins

Definitions

  • This invention relates to machines for operating upon the end portions of shoes and is illustrated as embodied in a machine for Working the foreparts of stitchdown shoe uppers into lastthereof against the projecting margins ofv soles.
  • Such machines are adapted for shaping the toe portions of the uppers ofstitchdown shoes to their lasts, forming outwardly turned marginal flanges thereon and at the same operation securing the flanges to the sole margin by the aid of adhesive, said machines being equipped each with a pair of wipers which are arranged 'to embrace the toe portion of the shoe at a level above the shoe bottom and with a sole support, the wipers and the sole'support being arranged' fo'r relative movement heightwise of the shoe to'eiiect' a wiping'action toward the sole to shape the toe portion'of the upper to the last and'to press the'outtu'rned T marginal portion of the upper against the mar- "ginal portion of the sole which extends outwardly beyond the sides of the last.
  • the invention com- 40 prises, as herein illustrated, the combination of end-embracing wipers movable hei-ghtwi'se' of the shoe and toe and side grippers mounted upon 'a sole support and arranged tomove away from a last on the support in divergent paths'so that the upper extending between thegrippers 'will be held in a tensioned condition to facilitate the laying of those portions free from wrinklesupon the outwardly extending marginal portion of the sole by later action of the wipers.
  • each gripper is movable about a pivot located under the sole support, and the gripper jaws are initially locatedabove and over the sole support, their movement being “outwardly with respect to the last with a component'of heightwise movement to cause the jaws. at the ed position and for pressing the outturned flanges (Cl. 12--7) conclusion of the pulling movement to "be locat 'ed below the upper surface of the solersupport so that they will not interfere with the-action 'of the wipers. "As -illustrated,- -the pivots of the side. grippersare in'non-parallel relation to each: other and.
  • treadle and means is provided for holding them in upper-tensioningposition until after the operation of the wipers, which means is automatically released by the return of the wipers to their normal position.
  • the illustrated machine is equipped with mechanism desirable under some conditions to cause the toe gripper to close and apply light tension-to the upper prior to the action of the side grippers and to cause the toe gripper further to pull the 25 upper and then to release it during the action of the wipers.
  • This mechanism is preferably arranged, as illustrated; so that it canbe used or not at the will of the operator.
  • the grippers When, in the operation of the illustrated ma-l. chine, the grippers are operated to pull themar gin of the shoe upper heightwise over the last and outwardly away from the sidesof the lastso far that when they have finished their upperpulling movements they, hold the extreme edgeof the margin close against the edge of the projecting margin of the sole substantially on the same level as that face of the sole against which the margin of the upper is to be pressed bythe wipers, the margin of the upper is in such condition that when the wipers are operated height- 7 wise of the shoe they can readily press the tening on certain kinds of shoes, for instance shoes 50 having uppers made of relatively soft'material such as glac leather or tinsel fabric, damage 'to the upper by the wipingaction of the wipers is avoided.
  • V Fig, 1 is a side view of the upper portion of a machine embodying the present invention
  • Fig. 2 is a sectional view' of the wipers and work support taken in front of the side grippers;
  • Fig. 3 is a plan viewillustrating the wipers and the gripper mechanismwith which the machine is provided;
  • Fig. 4 is a view illustrating power-operated means for actuating the wipers and the rear abutment
  • Fig. 5 is a detail of one of the side grippers in its initial position.
  • the machine is preferably duplex, two separate machines being arranged side by side, one adapted for operating on the left shoe ofa pair and the other for operating on the right.
  • the machines may be identical, the following description maybe assumed to apply to each one.
  • Each machine comprises an upright column or post [6 which is inclined toward the operator at some 30 degrees to the vertical.
  • the post On its upper end the post carries a readily detachable solesupporting plate l2 adapted to receive the forepart of the sole of a stitchdown shoe presented right side up to'the machine.
  • the plate i2 is of a'shape roughly similar to that of the forepart of a sole-and is arranged perpendicular to the direction of the post Ill so that it slopes upwardly away from the operator so that a shoe presented thereon will be in a convenient position for the operator to look down upon it and watch the progress of the operation on the shoe.
  • the plate I2 is secured to the post it! by a screw l4 (Fig. 3)" passing through a slot in the plate l2 to permit adjustment of the plate lengthwise of the shoe and relatively to wipers [6 with which the machine is equipped.
  • the inner marginal portions of the wipers overlie the marginal portion of the plate l2 around the toe portion of the shoe, the wipers normally occupying a raised position, as indicated in Fig. 2, spaced well above the plate I2.
  • the toe end of the plate I2 has an upstanding rib l8 (Fig. 1) against which the toe end of a sole A on the bottom of a last B within the upper C of a shoe may be caused to abut and position the shoe longitudinally in the machine relatively to the wipers.
  • a slideway 26 upon which is mounted a rising and falling wiper-carrying bracket 22, this slideway extending substantially perpendicular to the plane in which the sole-supporting plate l2 lies.
  • the bracket 22 has an upper portion 24 parallel to the plate l2 which forms a guideway for a wiper-carrying slide 26.
  • the slide 26 at its forward end has formed in it arcuate guideways 23 (Fig.
  • a pinion 34 is provided to mesh with the rack teeth on each wiper-carrying plate 28, and the two pinions are freely rotatable about pins 36 secured to the wiper-carrying slide 26.
  • Fast on the upper face of each of the pinions 34 is a second pinion 38 which engages a rack bar 40 arranged for adjustment longitudinally parallel to the, direction of movement of the wipercarrying slide 26.
  • the two rack bars 40, 40 are parallel and lie in directions lengthwise of the shoe in the machine and their rear ends are connected by a bridge piece 42 extending transversely across and over the slide 26 and arranged to slide forwardly and rearwardly on ways 43 formed on a lug 44 projecting upwardly from the midportion of the bracket 22 througha slot 46 in the slide 26.
  • a rod 48' is threaded, the rod extending parallel to the rack bars 4! and having collars 50, 50 abutting against the opposite sides of an ear 52 extending upwardly from the bridge piece 42.
  • the rack bars 40 may be moved lengthwise of the shoe relatively to the wiper-carrying slide 26 to rotate the.
  • pinions 34, 38 and thus cause the wipers to move angularly' about their meeting point so that the forward portions of their wiping edges may be spaced apart a distance corresponding to the width of the portion of the shoe they are to operate upon.
  • the wipers,rwhile embracing the toe portion of the shoe with the desired closeness be moved heightwise of the shoe from a level above that of the upper face of the sole downwardly toward the sole to press the margin of the upper held under tension and outspread by grippers, in a. manner to be hereinafter described, against the sole and should, when they actually press the margin of the upperagainst the sole, be caused to advance slightly toward the heel end of the shoe and to" swing toward each other as they do so in order to force the upper inwardly close against the last and to form a well defined crease on the upper between the outwardly extending margin of the upper and the portion of the upper extending over the last.
  • a bell crank lever is pivoted on a transverse horizontal pivot 62 to the rising and falling bracket 22, and a forwardly extending arm of the lever 60 has secured to it the upper end of a link 64 which at its lower end is connected to means, later to be described, for operating it by power.
  • An upwardly extending arm of the bell crank 60 is provided with a segment 66 having teeth 68 formed thereon which mesh with teeth formed on the lower side of the wiper-carrying slide 26, so that downward movement of the link 64 will rotate the segment 66 and cause the wiper-carrying slide 26 to be moved toward the shoe.
  • a relatively strong spring 10 is located between the rear end of the slot 46 in the wipercarrying slide 26 and the lug 44 on the bracket 22 and tends not only to maintain the wipercarrying slide 26 in a definite rearward position but thus holds the wipers in a definite separated and retracted position as determined by adjustment of the hand wheel 54 such that the wipers.
  • Compressed air supplied by a pipe 8!] is conducted by a pipe 82 to the lower end of the cylinder 18 and by a pipe 84 to its upper end, the supply of air to the cylinder being controlled by a valve '86 operated through a link 88 by a treadle lever '99 pivoted. at 92 to the frame and having a treadle 94 pivoted thereto at 95 and located at the front of the machine.
  • a lug 91 on the treadle 94 engages a part of the treadle lever 98 to prevent clockwise movement of the treadle 94.
  • the valve 85 is turned .tosupply air to the lower end of the cylinder through the pipe 82 and when the treadle.
  • the shoe is preferably left in the machine until another shoe has been similarly treated in a similar manner in another 'machine and is then released by depressing an arm I02 formed on the treadle 94 and held in 'raised' position by a spring 184 connected between a downward projection on the latch 98 and a similar downward projection on'the treadle 94.
  • the arm 1B2 engages a lug I06 on the latch 98 and swings it forwardly out fromunder the ledge I00, thus releasing the treadle, the-spring 96 then acting to restore the valve to the position the machine frame.
  • the jaws of the toe gripper are relatively wide (for example 1% inches in width) in order that they may grip a substantial portion of upper extending across the toe end of the last;
  • the side grippers maybe narrower (for example aboutan inch in width).
  • the inner edges of the jaws of the toe gripper may, as seen in plan (Fig. 3), be curved to approximate the curvature of the toe end of the last so that the oppositei side portions of the gripper may engage the margin of the upper as close to the last as does 'the central portion of the gripper.
  • the toe gripper (Fig. 1) comprises a lower jaw member M9 pivoted at I42 to a member I44 fixed to the top of the post H! and supporting the and a rearward extension thereof is connected by a link E52 to a short lever I 54 pivoted between its ends at I56 to the member ME ⁇ .
  • the front end of the lever I54 is pivoted at I58 to a rod E50" which passes downwardly. through an ear I62 pivoted to a slide lei-mounted for movement in the frame in a direction perpendicular to the tween the slide lfi and the post to return the On the rod I66 between the ear i5 slide to its upper position.
  • the side grippers are alike and each comprises a lower jaw member I80 and an upper jaw member I82 (Fig. 5).
  • Each lower jaw member has an upward extension forming the lower jaw I84 of the gripper, said extension being inwardly inclined to overlie slightly the plate I2 and'to present the jaw.
  • I84 parallel to and substantially inthe plane of the. upper surface of the sole A pending rod located on the supporting plate- I2.
  • Thejaw member I is pivoted at I86 to the member I44 at a point substantially under the edge of the bottom of the last B located with its sole A on the plate ii.
  • the upper jaw I82 is pivoted at I88 to the jaw member I80, and connected to it between its pivot and its jaw portion I88 is a de- I90 the lower end of which is pivoted at I92 (Fig. 1) to the slide i64 so that downward movement of the slide will close the upper jaw I89 against the lower jaw I84 to seize the upper C.
  • the jaw member I80 is supported in its initial position by a spring I94 threaded on a rod I96 which, at its upper end, is pivoted at I98 to the jaw member I80 and at its lower end passes freely through an arm 200 on the post I0.
  • Set nuts 202 on the lower end of the rod I96 limit upward movement of the jaw member I80 and adjustably' determine its initial position.
  • the spring I84 insures that the jaws will close upon the upper C before they swing about the pivot I86 to impart an outward and downward pull to the upper.
  • the three grippers are so constructed and arranged that by downward movement of the slide I64 the upper jaws will be moved relatively to the lower jaws to grip the shoe upper and that thereafter the gripping jaws will hold the upper taut against the. upper face of the last'by tensions exerted on it in outward and downward directions.
  • the toe gripper by its downward movement with a component away from the shoe, imparts a lengthwise tension to the shoe upper in addition to a heightwise tension and the side grippers are so arranged that as they move outwardly they have an appreciable component of movement lengthwise of the shoe toward the toe end, and for this purpose the pivots I86 of the side grippers, as shown in Fig.
  • the grippers will act, on depression of the slide I64, to pull the toe portion of the upper tightly against the upper faceof the last before the wipers act on the upper, it is not so important to cause the inner edges of the wipers to press-the: upper firmly against the sides of the last asthey descend toward the sole and thus possibility of damaging delicate shoe uppers by the wiping action of the wipers may be avoided.
  • the nuts I18, 202, 202 the initial heightwise posi-' tion of any of the three grippers may be varied independently of the others.
  • the toe gripper may be desirable to cause the toe gripper to apply relatively light tension to the toe end of the upper tofacilitate the action of the side grippers in pulling the upper firmly down before the side grippers. act on ;it and also to causethe grip exerted by the toe gripper on the upper to be relieved when the wipers advance and close overthe outwardly extending margin of the sole to facilitate forcing the upper at the toe endby the wipers into the angle formed by the outwardly extending margin of the sole and the last.
  • the rod I60 which operates the toe gripper above the ear I62 a collar 204 which, when a shoe is initially presented to the machine, rests upon a stop lever 206 pivoted at 208 (Fig.
  • the lever 206 may be rocked to remove it from beneath the collar 264 by the knee of the operator prior. to depression of the trea-dle I69 by which the'grippers are operated.
  • the operator When the operator has placed the margin of the upper between the jaws of the three grippers he may swing the lever 206 to one side spring I68 causes the gripper to be pulled downwardly and outwardly somewhat to apply a light tension to the upper. This takes place independently of the operation of the side grippers by the treadle I69 and, when the side grippers have been caused to grip and pull the-upperby depression of the gripper-operating treadle I69 inthe manner previously described and the mapressing the treadle 94, an adjustable abutment 2!
  • the abutment 240 has on its under face a cam surface-212 which acts as the wiper carrier 26 is moved.
  • a ratchet teeth on 'its rear edge is secured to the'slide I64 and a pawl H8 is pivoted at 225 to the post I and cooperates with'the plate 2I6 to hold the slide from upward movement.
  • upward movement of the wiper-actuating link 64 is utilized torele'ase the pawl 2E8.
  • a releasing ,fing'er 224 Secured to thelink 64 is an arm 222 on the front end of which is pivoted a releasing ,fing'er 224 which can turn upwardly on its; pivot 226 but not downwardly beyond a horizontal position.
  • Formed on a rearwardly projecting portion 228 of the pawl 2! is a wide. notch 236.
  • a link 234 In order to prevent the grippers from rising far enough to strike against the lower side of a link 234 is pivoted at its rear end to' the bracket 22 and at its forward end to a depending link 236 the upper end of which is pivoted at I65 on the slide I64. 7 When the slide I64 moves upwardly rapidly under theinfiuence of the spring III, the upper edge of the link 234 engages the stop screw 232 and arrests movement of the grippers before they hit the wipers,
  • the wipers may conveniently have one or more notches cut in their inner edges into which a'hand stapling or tacksion on the upper.
  • the wipers ing device may be introduced to enable the upper to be fastened to the sole without it being necessary to retract the wipers appreciably from A and an upper C properly assembled upon a last'B and, if it is desired that the marginal flange on theupper be secured in place on the sole by cement instead of by tacking or stapling, the operator then either applies cement to the margins of the sole and/or; upper or renders tacky cement which has previously been applied to one or both of these parts. He then placesthe shoe on the toe-supporting plate I2 of the machine with the toe end of the shoe pointing away from him and abutting against the'upstanding rib I8 on the supporting plate.
  • the upper is thus tensioned'lengthwise of the shoe bythe toe gripper and pulled away from the last widthwise thereof and to-" Ward the toe end of the last by the sidegrippers.
  • the three grippers also exert a heightwise ten- As-a result the toe portion of the upper is pulled tightly against the upper face of the last, the margin of theupper extending around its toe is held by the grippers in a tensioned ,outspread'condition close to the edge of the outwardly extending margin of the sole, and the opposite sides of the upper along the shank portion are pulled closely against the last.
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, grippers mounted for movement in outwardly and downwardly directed paths with respect to the last, means for, closing the gripbers upon the upper and moving them in said paths to tension the upper, end-embracing wip ers, and means for moving the wipers heightwise of the last to work theupper into the angle between the side of the last and the projecting margin of the sole.
  • a stitchdown lasting machine having, in
  • stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole Which projects beyond the bottom of the last, grippers mounted for movement in outwardly and downwardly directed paths with respect to the last, means for closing the grippers upon the upper and moving them in said paths 'to tension the upper, end-embracing wipers, and means independent of the gripper-operating means for moving the wipers heightwise of the last to work the upper into the angle between the side of the last and the projecting margin of the sole.
  • a stitchdown lasting machine having, in combination, a support'to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bot- .tom of the last, grippers mounted upon the supa last and adapted to support the marginal portion of the sole which projects beyond the bot-' tom of the last, a toe gripper mounted upon a pivot beneath the support for downward and outward movement withrespect to the 1ast,'a spring for holding the gripper with its jaws above the, 7
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted'to support the marginal por- 5 tion of the sole which projects beyond the bottom of the last, a toe gripper mounted upon a pivot beneath the support for downward and cutward movement with respect to the last, a spring for holding the gripper with its jaws'above the support, means acting through a stronger spring for closing the gripper upon the upper and moving it to tension the upper, end-embracing wipers, and means independent of the gripper-operating means for moving the wipers heightwise of the last to Work the upper into' the angle be tween the side of the last and the projecting margin of the sole.
  • a stitchdown lasting machine having, in combination, a support to receive the sole'of a stitchdown shoe assembled with an upper upon alast and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, grippers mounted upon pivots located under the support for swinging movement in paths outwardly and downwardly directed with respect to the last, means for closing the grippers'upon the upper and moving them in said paths to tension the upper end-embracing wipers, and means for moving the, wipers heightwise or the last to work the upper into the angle between the side of the last and the projecting margin of the sole. 7
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, grippers mounted upon the support for movement in paths outwardly and downwardly directed with respect to the last, manu ally operated means for closing the grippers upon the upper and moving them in said paths to tension the upper, end-embracing wipers, and poweroperated means for moving the wipers heightwise; of the last to work the upper into the angle be- I tween the side of the last and the projecting mar '66 gin of the sole. 7
  • a stitchdown lasting machine having, in
  • a stitchdown lasting machine having in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, grippers mounted for outward and down-' ward movement with respect to the last, means for closing the grippers upon the upper and moving them to tension the upper, end-embracing wipers arranged for advancing and closing movement with respect to the shoe, and poweroperated means for moving the wipers heightwise of the last to work the upper into the angle between the side of the last and the projecting margin of the sole, said power means acting to advance and close the wipers at the conclusion of their heightwise movement.
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, grippers mounted for outward and downward movement with respect to the last, means for closing the grippers upon the upper and moving them to tension the upper, end-embracing wipers arranged for advancing and closing movement with respect to the shoe, a spring for opposing said advancing and closing movement, and power-operated means for moving the wipers heightwise of the last to work the upper into the angle between the side of the last and the projecting margin of the sole, said poweroperated means acting, when further heightwise movement of the wipers is'opposed by the proj ecting margin of the sole, to cause advancing and closing movement of the wipers against said spring.
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole projecting beyond the bottom of the last, a toe gripper and side grippers arranged to engage respectively the toe portion and the side portions of the forepart of the upper of a shoe on said support, means for causing the toe gripper to close and pull the upper prior to closing of the side grippers, means for moving the side grippers heightvvise of and outwardly with respect to the shoe last, end-embracing wipers arranged for movement heightwise of the last, and means for moving the wipers to work the upper into the angle between the side of the last and the projecting margin of the sole.
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom' wise with respect to the last, end-embracing Wipers, and means for moving the wipers heightwise of the last to work the upper into the angle between the side of the last and the projecting margin of the sole.
  • a stitchdown lasting machine having, in
  • a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, a toe gripper mounted upon a pivot beneath the support for downwardand outward movement with respect to the last,'a spring V creasing the tension of. said stronger spring when the gripper is in initial position, said means being releasable at the will of the operator to cause closing and pulling movement of the gripper.
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdownshoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, toe and side grippers mounted upon pivots located beneath the support and having their lower jaws initially overhanging the soleengaging surface of the support, the pivots of the side grippers converging toeward of the shoe, means for moving the upper jaws of.
  • the grippers to seize the upper and for swinging the grippers on their pivots to tension the upper outwardly and heightwise with respect to the last, the side grippers because of their converging pivots tending to tension the upper longitudinally, end-embracing wipers, and means for moving the wipers heightwise of the last to work the upper into the angle between the side of the last and the projecting margin of the sole.
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, two-jaw toe and side grippers mounted upon pivots located beneath the support and having their lower jaws initially above the sole-engaging surface of the support, means for moving the upper jaws of the grippers to seize the upper and for swinging the grippers on their pivots to tension the upper outwardly and heightwise with respect to the last, end-embracing wipers arranged for advancing and closing movement, and means of the last and the projecting margin of the sole and for then advancing and closing them to crease 'sole which projects beyond the bottom of thelast,
  • a toe gripper and side grippers arranged to engage the toe end and side portions of the forepart of the upper of the shoe on said support, manually operated means for moving the grippers heightwise of and outwardly with respect to the shoe last, means for holding the grippers with the upper under tension, end-embracing wipers arranged for movement heightwise'of the last, poweroperated means for moving the wipers to work the upper into the angle between the side of the last and the projecting margin of the sole, and
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, grippers mounted upon the support for outward and downward movement with respect to the last, means for closing the grippers upon the upper and moving them to tension the upper, a pawl for holding the grippers with the upper under tension, end-embracing wipers mounted for movement perpendicular to said support, poweroperated means for moving the wipers heightwise of the last to work the upper into the angle between the side of the last and the projecting margin of the sole, and means operating upon return movement of the wipers for releasing said pawl.
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, a toe gripper and side grippers arranged to engage the toe and side portions ofvthe forepart of the upper of a shoe on said support, means for operating the grippers heightwise and outwardly with respect to the shoe, end-embracing wipers arranged for advancing and closing movements and for movement heightwise of the last, means for first moving the wipers heightwise of the last to work the upper into the angle between the side of the last and the projecting margin of the sole and then advancing the wipers, and means operated by the advancing movement of the wipers for releasing the toe gripper.
  • a stitchdown lasting machine having, in combination, a support to receive the sole of a stitchdown shoe assembled with an upper upon a last and adapted to support the marginal portion of the sole which projects beyond the bottom of the last, toe and side grippers mounted upon pivots beneath the support for downward. and out ward movement with respect to the last, a spring for holding each gripper with its jaw above the support, means acting through a stronger spring for closing each gripper upon the upper and for moving it to tension the upper, and means for increasing the tension of the stronger spring of the toe gripper when that gripper is in initial position, said means being releasable at the will of the operator to cause closing and pulling movement of the toe gripper prior to operation of the side grippers.

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US109133A 1935-11-21 1936-11-04 Machine for operating on stitchdown shoes Expired - Lifetime US2096761A (en)

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GB32257/35A GB467669A (en) 1935-11-21 1935-11-21 Improvements in or relating to shoe upper conforming machines

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GB (1) GB467669A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668967A (en) * 1948-08-20 1954-02-16 Kamborian Toe laster
US2740138A (en) * 1951-11-09 1956-04-03 United Shoe Machinery Corp Machines for operating on the heel end portions of shoes
US2799875A (en) * 1953-08-21 1957-07-23 United Shoe Machinery Corp Heel end assembling and breast line lasting machines
DE2343915A1 (de) * 1973-08-31 1975-03-13 Int Schuh Maschinen Co Gmbh Vorrichtung zum zwicken von schuhwerk der flexibel-machart

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000023A (en) * 1959-04-28 1961-09-19 United Shoe Machinery Corp Machines for shaping uppers over lasts

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668967A (en) * 1948-08-20 1954-02-16 Kamborian Toe laster
US2740138A (en) * 1951-11-09 1956-04-03 United Shoe Machinery Corp Machines for operating on the heel end portions of shoes
US2799875A (en) * 1953-08-21 1957-07-23 United Shoe Machinery Corp Heel end assembling and breast line lasting machines
DE2343915A1 (de) * 1973-08-31 1975-03-13 Int Schuh Maschinen Co Gmbh Vorrichtung zum zwicken von schuhwerk der flexibel-machart

Also Published As

Publication number Publication date
DE686078C (de) 1940-01-06
FR813208A (fr) 1937-05-28
GB467669A (en) 1937-06-21

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