US2428803A - Manufacture of footwear - Google Patents

Manufacture of footwear Download PDF

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US2428803A
US2428803A US600433A US60043345A US2428803A US 2428803 A US2428803 A US 2428803A US 600433 A US600433 A US 600433A US 60043345 A US60043345 A US 60043345A US 2428803 A US2428803 A US 2428803A
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lasting
last
margins
units
sole
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US600433A
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Jacob S Kamborian
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/16Lasting machines with lasting pincers and toe- or heel-embracing wipers
    • 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
    • A43D21/125Lasting 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 a plurality of pincers
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/18Lasting machines with lasting pincers and straight-acting wipers, also for forming the shank portions of shoes

Definitions

  • This invention relates to an improvement in the manufacture of footwear and more specilically to a development of the lasting method and machine disclosed in the United States patents to Kamborian, Nos. 2,235,887, and 2,235,888, granted March 25, 1941.
  • Both the above patents relate to the lasting of the toe of a shoe upper supported upon a last in the normal (bottom-down) position and include the steps of so supporting the last that, after the lasting margin of the upper at the toe has been seized by gripping means, the last is rocked to raise the toe so that the upper is drawn down snugly over thev last, and subsequently wiping the lasting margin inwardly below and against the bottom surface of a sole also carried by the last, such wiping operation being performed by instrumentalities independent of the gripping instrumentalities.
  • the shoe being lasted is held stationary in the normal (bottom-down) position and the lasting margin of the upper is seized by movable grippers which, seriatim, draw the upper snugly over the last and wipe the lasting margin inwardly below and against the bottom surface of the sole.
  • the lasting margin while held by the grippers against the sole, is secured to the sole.
  • Mechanical fastening means are herein shown and described for that purpose, but it will be understood that the margin may, if desired, be bonded to the sole by a suitable cement or adhesive.
  • the grippers and the fastening means at each side of the last are mounted upon movable supporting structures or units and suitable means is provided to actuate the units and to cause the grippers to move, and to cause the fastening means to function while the grippers hold the margin against the sole.
  • the primary object of this invention resides in the method of and means for lasting the toe of an open toe shoe whereby the toe opening is lined up and the edges of such opening are drawn down to the wood of the last al1 Within the vision of the operator who is able to make any adjustments necessary as the lasting takes place, as for example to position the toe opening for the right and left of a pair of shoes.
  • Another object of this invention is to provide means by which the upper on a stationary last in the normal (bottom-down) position is pulled over and lasted at the forepart of the shoe, such means comprising movable grippers which, having seized the lasting margin of the upper, pull the upper down snugly over the last and Wipe the lasting margins under a sole carried by the last and hold them against the bottom surface thereof, thus distinguishing from the practice heretofore followed wherein two independent in- 2 strumentalities are employed as in the patents mentioned above.
  • Another object of this invention is to provide a movable unit at each side of the last which unit includes means for gripping the lasting margin ⁇ of the upper and means for securing such lasting margin to the insole of the shoe by mechanical fastening means, e. g., staples, and suitable means by which the unit is moved to cause the gripping means, after seizing the lasting margin, to draw the upper snugly about the last and to Wipe the lasting margin under the insole and by which the fastening means is actuated after the lasting margin has been wiped.
  • mechanical fastening means e. g., staples
  • a further object of the invention resides in the pivotal mounting of a pair of the units above mentioned for the toe of the shoe and the provision of means whereby, as the units are advanced to wipe the lasting margin under the sole, they are swung through an arc of approximately twenty ve degrees, thereby drawing the upper down snugly over the toe of the last.
  • Fig. 1 is a top plan view of a machine embody-r ing this invention which is adapted to pull over the last the toe of a shoe;
  • Fig. 2 is a front elevation of the machine illus- Ytrated in Fig. l, the toe and heel rests being omitted;
  • Fig. 3 is a partial and Fig. 4 a complete cross sectional view taken along the section line 3-3 in Fig. 2 showing the staple forming and driving mechanism in two positions;
  • Fig. 5 is a fragmentary plan view of the lasting units of Fig. l in the operating position
  • Figs. 6 and 7 are longitudinal sectional views of one type of mechanical fastening means
  • Fig. 8 is a top plan view of the machine illustrated in Fig. 1 modified to last the shank of the UDDGI'I Fig. 9 is an enlarged view in side elevation of the lasting unit for the machine illustrated in Fig. 8;
  • Fig. 10 is a bottom plan view of a shoe showing the upper lasted at the toe and shank.
  • This invention is particularly applicable to the lasting of open toe shoes and has been illustrated in the drawings and will be described as so employed.
  • the upper is first spindied, pulled over and side lasted and then the lasting of th upper at the toe, which had been tacked after pulling over, is performed.
  • the upper at the toe is pulled over and lasted in a single operation without the use of tacks.
  • the shoe is in the normal (bottom-down) Vplatform or table I which is suitably supported by any desired means or which may be the top sur- ⁇ face of a bench.
  • a shaft 2 extending longitudinally of the table, is supported in bearings 3 secured to the under face of the table and is driven by a suitable source of power (not shown), e. g., av
  • the table I is out away at the center to provide a recess l above which the forepart of a last 5 (carrying van upper 6 and an insole 15) is arranged in preparation for the lasting operation.
  • the heel kof the last 5 rests in a support l (Fig. 3) adjustably mounted in a slot 8 in the table I and arranged to be raised, or shifted longitudinally as required so that lasts of various sizes can be accommodated in the machine.
  • a toe rest 9 (Fig. 1) of any desired construction.
  • each unit I6 Pivotally connected Yto the outer face of each unit I6 is one end of an arm I8, theV other end of the arm terminating in an upwardly projecting pin I 9, which enters an inclined slot 2E! in the table I below the slide IB.
  • gripper jaws 2i Pivoted to the inner faces of the units I are gripper jaws 2i.
  • the jaws 2l are normally open as shown in Fig. 2 and are closed by any suitable means as, for example, an arm 22 (integral with the jaw and extending substantially at right Aangles thereto through a notch 23 formed in the unit I6) and a link 24 lwhich connects the free end of the arm 22 with a treadle (not shown).
  • the mechanical fastener applying means incorporated in each unit I6 of the illustrated machine is vadapted to form and drive staples through 'slots 25 in the upper face of the unit.
  • the staple kforming and driving mechanism 26 (Figs. 6 and 7) is mounted in a chamber 2'I formed in the unit I and comprises a pair of anvils 28, a vertically movable slide, and a pail' 0f drivers 29, each of which terminates at its upper end in a tongue 3U positioned and dimensioned to enter a slot 25 when the drivers 2S are raised.
  • the vertically movable slide comprises a central block 3l (Fig. 6) and side blocks 32 connected in parallel by aY plate 33 (Fig.
  • a U-shaped plunger 35 integral with the drivers 29 or secured in any suitablemanner for movement therewith, projects from the bottom wall of the .chamber 2l.
  • of the slide is a cross rod 3l on each end of which is pivoted a trip e 38.
  • Each trip 38 is normally inclined so that its lower end enters a notch 39 in a driver 29 and is yieldably held therein by a spring do between the surface of the driver and the upper end of the trip.
  • Fixed to the side walls of the chamber 2'I is a cross bar el (Fig. 7). the upper end of each trip 3s is beveled so that, as the drivers 29 advance, the trips will engage the bar il and be actuated thereby.
  • PivotedV upon the outer face of the unit I6 are bell crank levers d2 the arms of which pass through slots 43 in the unit inV alignment with the'side .blocks 32.
  • Each arm of each lever terminates in a roller, the roller on one arm entering and remaining in a'poclret le formed on the under side of an anvil 23, and the roller on the other arm being in the path of travel of Ya pair of spaced ears 45 and i6 fixed to the correspond- Y ing side block 32.
  • Springs el' each connected at one end to the cross bar il and at the other end to the central block 3! of the slide and to the drivers 25,.respectively, hold the slide and drivers 29 normally vinthe position'shown in Fig. 6.
  • blades i8 and t9 Projecting into the chamber 2l fromrthe top wall thereof are blades i8 and t9.
  • the blade d8, midway between the slots 25, is positioned for shearing contact with one wall of a notch 5i) formed in the central block 3! of the slide.
  • the blade $9 at one side of the chamber 2l is positioned for shearing contact with the outer face of the adjacentblock 32.
  • the staples are cut and formed from wire fed into the chamber 2l through an orifice 5l (Fig. 6).
  • the wire is supplied from a reel 52, supported in the unit I6, through a bent tube 53 and is. advanced by a nipper 54 so' constructed that it will seize and feedvthe wire when traveling toward the chamber 2'! and will release the wire when traveling in the opposite direction. Feed nippers of this type are old and well known and hence more detailed description is believed to be unnecessary.
  • the nipper 5d is reciprocated by means of an arm 55 fixed on the shaft 55 which supports the reel 52, and bifurcated at its free end to engage the 'nipper 54.
  • Another arm 5l, xed to the shaft 55 is similarly bifurcated to engage an arm 58 integral with or :fixed to the gripper jaw 2l and passing through a slot 59 in the unit I6.
  • the actuation of the staple forming and driving mechanism is controlledV by a cam 5B ixed upon the shaft 2 midway between the units I 3, and a rollery 5I carried by an arm EZand in contact with the periphery of the cam (Fig. 4).
  • the arm 62 is pivoted at one end upon an angular bracket 63 Xed to the under face of the table l.
  • the other end of the arm e2 is bifurcated to engage a sleeve 64 on a post 5 which supports a cross plate 66.
  • the plate 65 extends below the plungers 35 (see Fig. 2) and the post S5 is guidedfor reciprocation in a bushing I'i formed at the free end of the bracket 63.
  • a spring 68 surrounding the post 55, yieldably holds the roller 6! on the arm 62 in contact with the cam Si) and, when the roller 6I enters a depression 69 in the periphery of the cam, causes the arm e2 to raise the plate 66 and actuate the plungers 35.
  • Mountedin each plunger 35 is a depressible plate V'lil (Fig. 6) resting upon a. spring 'il and adapted, when the plunger is raised, to Contact the lower end of the middle block 3l of the slide for a purpose which ⁇ will be pointed out hereinbelow.
  • the table l is preferably inclined (see Figs. 3 and 4) so that the operato-r can determine visually that the upper is uniformly positioned on the last.
  • the jaws 2l are then caused to grip the lasting margins, as by depressing the treadle (not shown).
  • This movement of the jaws Zl also, through the arms 5l, causes the nipper 54 to advance wire from the reel 53 through the orifice 5I.
  • the wire enters the grooves in the upper ends oi the blocks 3l, 32 and rests therein below the anvils 23 and blades 48 and t9.
  • the shaft 2 is then set in rotation and the lasting operation is completed during a lsingle rotation of the shaft 2.
  • the slides it? approach each other carrying the units iii which, due to the engagement of the pins i@ on the arms Iii with the slots 253, are swung from the parallel position shown in Fig. l into the inclined position shown in Fig. 5, whereby the upper is pulled over the last and the gripped lasting margins of the upper are wiped under the bottom of the insole 'l5 in position to be secured thereto by meH chanical fastening means.
  • this inward movement of the units is along arcu" ate paths resulting from the combination of a bodily linear travel and an arcuate travel at the termination of which the units are below the insole in positions approximately parallel'to the contour of the edge o f the forepart (see Fig. 5).
  • the cam 6i! is so mounted upon the shaft 2 that as soon as the units reach the position shown in Fig. 5, the arm 62 is released and the plungers 35 are raised to form and drive the staples. Since the trips 38 are in the notches 3Q the drivers 29 and the slide are raised simultaneously.
  • the blocks 3l and 32 of the slide act to sever the wire5 fed by the nipper 54, at the blades i8 and "i9 and to bend the severed portionsvinto staples about the anvils 28.
  • the trips 38 engage the cross bar 4l and disengage the slide from the drivers which continue to advance and at the same time the levers d2 are struck by the ears 4S to retract the anvils 2B, leaving the formed staples in the grooves milled in the sides of the blocks 3l, and the staples are forced by the drivers 2Q through the slots 25 into the lasting margins to secure them to the sole l5.
  • the cam titi then returns the arms 62 into the position shown in Fig. whereupon the springs 4l return the slide and drivers 29 to the position shown in Fig. 6.
  • the plate l@ and spring 'il permit the plungers 35 to continue to advance the drivers 29 after the slide has reached the limit of its travel.
  • the ears i5 engage the bell crank levers i2 and advance the anvils 28 to their normal position.
  • the cams i3 retract the slides IG. drawing the units l s back into parallelism. Since the anvils 28 Droiect from the outer face of the units into contact with the ends of the slides,
  • the machine for lasting the upper at the shank of the shoe corresponds generally in structure and operation to the machine described above and the same reference numerals are employed. Since the lasting units i5 remain parallel at all times they are rigidly secured to the ends of the slides lil in any desired manner.
  • the contour .of the gripper jaws 2l is, however, changed as shown in Fig. 9 to correspond with the contour of the shank portion of the last.
  • the staple forming and driving mechanism is simplied because only a single staple is required at this portion of the shoe. Consequently only a single slot 25 (Fig, 8) is provided in each unit and the staple forming and driving mechanism is modied accordingly.
  • a lasting machine comprising a frame, lastn ing units carried by said frame and movable toward and from opposite sides of the forepart of an upper carried by a last, said units including means for gripping the lasting margins of the upper, means for pulling o-ver the upper and means for wiping the lasting margins into contact with a sole also carried by the last, mechanism for forming staples from wire and driving them in to the wiped margins to secure the margins to the sole and means for feeding such wire,
  • a lasting machine comprising a frame, lasting units carried by said frame and movable toward and from opposite sides of the forepart of an lllODer carried by a last, said units including means for gripping the lasting margins of the upper, means for pulling over the upper and means for wiping the lasting margins into com tact with a sole also carried' by the last, mechanism for forming staples from wire and driving them into the wiped margins to secure the margine to the sole and means for feeding such wire, power operated means for moving said units toward and from the upper and for actuating said staple forming and driving mechanism after the margins have been wiped into contact with the sole and means, independent of said power operated means, for closing said gripping means and for actuating said wire feeding means simultaneously.
  • a lasting machine comprising a frame, means providing a last supporting surface on said frame for supporting the forepart of a last in the bottom-down position, slides in said frame movable toward and from opposite sides of the forepart of the last, lasting units supported by said slides and movable thereby toward and from the sides of the forepart, said units including wiping and gripping means adapted to seize the lasting margins of an upper carried by the last and having a wiping surface movable substantially in the plane of said last forepart supporting surface, means for closing said gripping meanameans for actuating said slides thereby moving said lasting units toward and from the sides of the forepart of the last, whereby the lasting margins of the upper are wiped into Contact with a sole on the bottom of the last and said units also including mechanism, actuated by the slide actuating means, for forming staples and driving the formed staples into the wiped-in lasting margins to secure such margins to the sole.
  • a lasting machine comprising a frame, means providing a last supporting surface on said frame fo-r supporting the forepart of a last in the bottom-down position, slides in said frame movable toward andv from opposite sides of the forepart of the last, lasting units supported by said slides and movable thereby toward and from the sides of the forepart, said units including wiping and gripping means adapted to seize the lasting margins of an upper carried by the last and having a wiping surface movable substantially in the plane of said last forepart supporting surface, means for closing said gripping means, means for actuating said slides thereby moving said lasting units toward and from the sides of the forepart of the last, whereby the lasting margins of the upper are wiped into contact with a sole on the'bottom of the last, each said unit also including mechanism for forming staples from wire and for driving the formed staples into the wiped-in lasting margins to secure such margins to the sole, the wire being fed by the means for closing the gripping means, and the unit supported mechanism being actuated by
  • a lasting machine comprising a frame, means providing a last supporting surface on said frame for supporting the forepart of a last in the bottom-down position, slides in said frame movable toward and from oppo-site sides of the forepart of the last, lasting units supported by said slides and movable thereby toward and from the sides of the forepart, said units including wiping and gripping means adapted to seize the lasting margins of an upper carried by the last and having a wiping surface movable substantially in the plane of said last forepart supporting surface, means for, closing vsaid gripping means, means for actuating said slides thereby moving said lasting units toward and from the sides of the forepart of the last whereby the lasting margins of the upper are wiped into contact with a sole on the bottom of the last, said units also including mechanism for forming staples from wire and for driving the formed staples into the wiped lasting margins to secure such margins to the sole, the wire being fed by the means for closing the gripping means and the unitcarried mechanism being actuated by the
  • a lasting machine comprising a frame, means on said frame for supporting a last inthe bottom-down position, lasting units carried by said frame and movable toward and from opposite sides of the forepart of the last, each unit includingmeans for gripping the lasting margins of an upper carried by the last, means for pulling over the upper and means for wiping the said lasting margins into contact with a sole carried by the last, mechanism for forming staples from wire and for driving said formed staples into the wiped-in margins to secure them to the 8 sole and means for feeding such wire,v power operated means for moving said units toward and from the upper and for actuating said staple forming and driving mechanism after the margins have been wiped into Acontact with the sole and means, independent of said power operated means, for closing said gripping means and actuating said wire feeding means.
  • a lasting machine Ycomprising a frame
  • a lasting machine for lasting the toe of an open toe shoe comprising a frame, means on said frame for supporting a last in the bottom-down position, having assembled thereon an upper and a sole, lasting units including means for gripping the lasting margins of the upper, said gripping means having faces for wiping the lasting margins oi the upper over the bottom of the sole;
  • a lasting machine for lasting the to-e of an open toe shoe comprising a support for a lastv with an insole and an upper having an open toe assembled thereon, means, including stapling means having elongate staple passages, for gripping the lasting margins of the upper at both sides of the iorepart adjacent to the toe of the shoe, and means for advancing said gripping means, including said stapling means-toward each other along arcuate paths substantially parallel with and adjacent to the bottom'of the forepart of the insole whereby the upper is drawn snugly about the last and the lasting margins are drawn over the bottom surface of the insole and the stapling means is turned while advancing thereby bringing the staple'passages into substantially parallel relation with the edges of the forepart oi the last, respectively, and means actuated by said advancing means for driving staples substantially in parallel relation with the edges ofthe forepart of the last, respectively, into the lasting margins to secure said margins to the insole.
  • a lasting machine adapted for lasting the to-e portion of the forepart of a shoe, comprising a support fora last with an insole and an upper having an open toe assembled thereon, means, including stapling means, for gripping the lasting margins of the upper at both sides of the forepart, and means for advancing said gripping means, including said stapling means, toward each other along arcuate paths substantially parallel with and adjacent to the botto-m of the forepart of the insole whereby the upper is drawn snugly about the last and the lasting margins are drawn inwardly over the bottom of the insole, and means actuated by said advancing means for driving staples into the lasting margins to secure them to the insole.
  • a lasting machine for lasting the toe of an open toe shoe comprising a frame, pivotally mounted lasting units supported by said frame, and movable in arcuate paths toward and from opposite sides of the forepart of a last having assembled thereon an upper and a sole, said units including means for gripping the lasting margins of the upper, means for pulling over the upper and means for wiping in said lasting margins comprising gripping elements and mechanism for forming staples from Wire and for driving the formed staples, one of said gripping elements having a wiping surface, said wiping surface having an opening through which staples are driven, and means for moving said lasting units to pull over the upper and to wipe the lasting margins into contact with the bottom of the sole and to secure said margins to said sole, and wire feeding means actuated by said gripping means.
  • a lasting machine adapted for lasting the toe portion of the forepart of a shoe comprising a table cut away to provide a recess, means on said table for supporting a last, having assembled thereon an upper and a sole, in the bottom down position, with the forepart of said last disposed above the recess in the table, slides in said table, lasting units including fastening inserting mechanisms supported on said slides, said units including means for gripping the lasting margins and means for wiping said margins over the bottom of the sole, and means for actuating said slides to move said units in arcuate paths toward and from opposite sides oi the iorepart of an upper carried by the last, said movement of the units being effective to pull the forepart of the upper over the last and to wipe said lasting margins into contact with the sole on the bottom of the last, said fastening mechanisms being actuated by said slide-actuating means after the margins are wiped into contact with the sole thereby securing said margins to the sole.
  • a lasting machine adapted for lasting the toe portion of the forepart of a shoe comprising a table cut away to provide a recess, means on said table for supporting a last, having an upper and sole assembled thereon, in the bottom-down position, with the forepart thereof disposed above the recess in the table, slides in said table, lasting units including stapling mechanism supported on said slides and means for actuating said slides to move said units, toward and from opposite sides of the forepart of the upper carried by the last, in arcuate paths substantially parallel with and adjacent to the bottom of the insole, said units including means for gripping the lasting margins, prior to movement of the units, said movement of the units being effective to pull the forepart of the upper over the last and to draw said lasting margins into contact with the sole on the bottom of the last and to turn said stapling mechanism whereby staples driven by said mechanism are located in substantially parallel relation to the edges of the forepart of the sole, respectively, said staple mechanism being actuated by said slide-actuating means after the
  • a lasting machine adapted for lasting the toe portion of the forepart of a shoe, comprising a table cut away to provide a recess, means on said table for supporting a last, having assembled thereon an upper and a sole, in the bottomdown position with the forepart thereof overhanging the recess in the table, slides in said table, lasting units, including means for gripping and stapling the lasting margins of the upper, pivotally attached to said slides, means for closing said gripping means upon said lasting margins, means for actuating said slides to move ⁇ said units toward and from opposite sides of the last after said lasting margins are seized by said gripping means, and means for swinging said units pivotally as they are moved by said slides to turn said gripping and stapling means in a plane substantially parallel with the bottom of the sole and to pull the forepart of the upper over the last and to draw said lasting margins into contact with the sole on the bottom of the last, said stapling and gripping means having staple-driving mechanisms, said mechanisms being actu
  • a lasting machine comprising a frame, means having a last-supporting surface on said frame for supporting the forepart of a last in the bottom-down position, slides in said frame movable toward and from opposite sides of the forepart of the last, lasting units supported by said slides and movable thereby toward and from the sides of the forepart of the last, each unit including wiping and gripping means adapted to seize the lasting margins of an upper carried by the last and including a wiping surface movable substantially in the plane of said last forepartsupporting surface, means for closing said gripping means, and means for moving said slides in a plane substantially parallel with the bottom of the forepart of the last thereby moving said lasting units toward and from the sides of the forepart of the last whereby the lasting margins of the upper are wiped into contact with a sole on the bottom of the last.

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Description

OC 14, 19,47- J. s. KAMBORYIAN 2,428,803
MANUFACTURE OF FOOTWEAR l.1. s. KAMBORIAN Oct.'14, '1947 MANUFACTURE op FOOTWEAR Filed June 20,4945 5 sheets-sheet 2 l @676%7" @60,5 ,5I Mofw 5y Olct. 14, 1947. J, s, KAMBORMN 2,428,803
MANUFACTURE OFFOOTWEAR Filed June 20, 1945 i 3 Sheets-Sheet 3v Patented Oct. 14, 1947 UNITED STATES PATENT OFFICE 15 Claims.
This invention relates to an improvement in the manufacture of footwear and more specilically to a development of the lasting method and machine disclosed in the United States patents to Kamborian, Nos. 2,235,887, and 2,235,888, granted March 25, 1941.
Both the above patents relate to the lasting of the toe of a shoe upper supported upon a last in the normal (bottom-down) position and include the steps of so supporting the last that, after the lasting margin of the upper at the toe has been seized by gripping means, the last is rocked to raise the toe so that the upper is drawn down snugly over thev last, and subsequently wiping the lasting margin inwardly below and against the bottom surface of a sole also carried by the last, such wiping operation being performed by instrumentalities independent of the gripping instrumentalities.
According to the present invention the shoe being lasted is held stationary in the normal (bottom-down) position and the lasting margin of the upper is seized by movable grippers which, seriatim, draw the upper snugly over the last and wipe the lasting margin inwardly below and against the bottom surface of the sole. The lasting margin, while held by the grippers against the sole, is secured to the sole. Mechanical fastening means are herein shown and described for that purpose, but it will be understood that the margin may, if desired, be bonded to the sole by a suitable cement or adhesive. The grippers and the fastening means at each side of the last are mounted upon movable supporting structures or units and suitable means is provided to actuate the units and to cause the grippers to move, and to cause the fastening means to function while the grippers hold the margin against the sole.
The primary object of this invention resides in the method of and means for lasting the toe of an open toe shoe whereby the toe opening is lined up and the edges of such opening are drawn down to the wood of the last al1 Within the vision of the operator who is able to make any adjustments necessary as the lasting takes place, as for example to position the toe opening for the right and left of a pair of shoes.
Another object of this invention is to provide means by which the upper on a stationary last in the normal (bottom-down) position is pulled over and lasted at the forepart of the shoe, such means comprising movable grippers which, having seized the lasting margin of the upper, pull the upper down snugly over the last and Wipe the lasting margins under a sole carried by the last and hold them against the bottom surface thereof, thus distinguishing from the practice heretofore followed wherein two independent in- 2 strumentalities are employed as in the patents mentioned above.
Another object of this invention is to provide a movable unit at each side of the last which unit includes means for gripping the lasting margin `of the upper and means for securing such lasting margin to the insole of the shoe by mechanical fastening means, e. g., staples, and suitable means by which the unit is moved to cause the gripping means, after seizing the lasting margin, to draw the upper snugly about the last and to Wipe the lasting margin under the insole and by which the fastening means is actuated after the lasting margin has been wiped.
A further object of the invention resides in the pivotal mounting of a pair of the units above mentioned for the toe of the shoe and the provision of means whereby, as the units are advanced to wipe the lasting margin under the sole, they are swung through an arc of approximately twenty ve degrees, thereby drawing the upper down snugly over the toe of the last.
Other objects of the invention will appear from a consideration of the following description and of the drawings which form a part thereof and in which: l
Fig. 1 is a top plan view of a machine embody-r ing this invention which is adapted to pull over the last the toe of a shoe;
Fig. 2 is a front elevation of the machine illus- Ytrated in Fig. l, the toe and heel rests being omitted;
Fig. 3 is a partial and Fig. 4 a complete cross sectional view taken along the section line 3-3 in Fig. 2 showing the staple forming and driving mechanism in two positions;
Fig. 5 is a fragmentary plan view of the lasting units of Fig. l in the operating position;
Figs. 6 and 7 are longitudinal sectional views of one type of mechanical fastening means;
Fig. 8 is a top plan view of the machine illustrated in Fig. 1 modified to last the shank of the UDDGI'I Fig. 9 is an enlarged view in side elevation of the lasting unit for the machine illustrated in Fig. 8; and
Fig. 10 is a bottom plan view of a shoe showing the upper lasted at the toe and shank.
This invention is particularly applicable to the lasting of open toe shoes and has been illustrated in the drawings and will be described as so employed. Heretofore, after assembling the upper and ins-ole upon a last, the upper is first spindied, pulled over and side lasted and then the lasting of th upper at the toe, which had been tacked after pulling over, is performed. According to the present invention the upper at the toe is pulled over and lasted in a single operation without the use of tacks. Moreover when this operation takes place, the shoe is in the normal (bottom-down) Vplatform or table I which is suitably supported by any desired means or which may be the top sur-` face of a bench. A shaft 2, extending longitudinally of the table, is supported in bearings 3 secured to the under face of the table and is driven by a suitable source of power (not shown), e. g., av
motor or other source of power driving through a single revolution clutch.
The table I is out away at the center to provide a recess l above which the forepart of a last 5 (carrying van upper 6 and an insole 15) is arranged in preparation for the lasting operation. The heel kof the last 5 rests in a support l (Fig. 3) adjustably mounted in a slot 8 in the table I and arranged to be raised, or shifted longitudinally as required so that lasts of various sizes can be accommodated in the machine. If desired there may also be provided a toe rest 9 (Fig. 1) of any desired construction.
' 'I'.wo slides le are mounted in transversey guides II in the table I for reciprocation toward and from the recess ll by the action of grooves I2 in cams I3 fixed to the shaft 2, tongues I4 projecting downwardly from the slides I carrying rollers I5 which engage the cam grooves I2. Supported by the slides I and within the recess 4 is a pair of lasting units I6 each comprising means for grip-` ping andl stapling the lasting margins of the upper at the forepart of the shoe. Each unit is pivotally connected atY I'I to a slide I0 and is reciprocable therewith. Pivotally connected Yto the outer face of each unit I6 is one end of an arm I8, theV other end of the arm terminating in an upwardly projecting pin I 9, which enters an inclined slot 2E! in the table I below the slide IB. Pivoted to the inner faces of the units I are gripper jaws 2i. The jaws 2l are normally open as shown in Fig. 2 and are closed by any suitable means as, for example, an arm 22 (integral with the jaw and extending substantially at right Aangles thereto through a notch 23 formed in the unit I6) and a link 24 lwhich connects the free end of the arm 22 with a treadle (not shown).
The mechanical fastener applying means incorporated in each unit I6 of the illustrated machineis vadapted to form and drive staples through 'slots 25 in the upper face of the unit. The staple kforming and driving mechanism 26 (Figs. 6 and 7) is mounted in a chamber 2'I formed in the unit I and comprises a pair of anvils 28, a vertically movable slide, and a pail' 0f drivers 29, each of which terminates at its upper end in a tongue 3U positioned and dimensioned to enter a slot 25 when the drivers 2S are raised. The vertically movable slide comprises a central block 3l (Fig. 6) and side blocks 32 connected in parallel by aY plate 33 (Fig. '7) and spaced apart to provide recesses 34 in which the drivers 29 travel. The sides of the blocks 32 are milled to provide grooveswhich receive tongues projecting from the sideedges ofthe drivers 2S, and the ends of the blocks 32-are similarly milled to receive the wire from which the staples are formed.
A U-shaped plunger 35, integral with the drivers 29 or secured in any suitablemanner for movement therewith, projects from the bottom wall of the .chamber 2l. Supported in a sleeve 36 mounted on the central block 3| of the slide is a cross rod 3l on each end of which is pivoted a trip e 38. Each trip 38 is normally inclined so that its lower end enters a notch 39 in a driver 29 and is yieldably held therein by a spring do between the surface of the driver and the upper end of the trip. Fixed to the side walls of the chamber 2'I is a cross bar el (Fig. 7). the upper end of each trip 3s is beveled so that, as the drivers 29 advance, the trips will engage the bar il and be actuated thereby.
PivotedV upon the outer face of the unit I6 are bell crank levers d2 the arms of which pass through slots 43 in the unit inV alignment with the'side .blocks 32. Each arm of each lever terminates in a roller, the roller on one arm entering and remaining in a'poclret le formed on the under side of an anvil 23, and the roller on the other arm being in the path of travel of Ya pair of spaced ears 45 and i6 fixed to the correspond- Y ing side block 32. Springs el', each connected at one end to the cross bar il and at the other end to the central block 3! of the slide and to the drivers 25,.respectively, hold the slide and drivers 29 normally vinthe position'shown in Fig. 6. Projecting into the chamber 2l fromrthe top wall thereof are blades i8 and t9. The blade d8, midway between the slots 25, is positioned for shearing contact with one wall of a notch 5i) formed in the central block 3! of the slide. The blade $9 at one side of the chamber 2l is positioned for shearing contact with the outer face of the adjacentblock 32. Y
The staples are cut and formed from wire fed into the chamber 2l through an orifice 5l (Fig. 6). The wire is supplied from a reel 52, supported in the unit I6, through a bent tube 53 and is. advanced by a nipper 54 so' constructed that it will seize and feedvthe wire when traveling toward the chamber 2'! and will release the wire when traveling in the opposite direction. Feed nippers of this type are old and well known and hence more detailed description is believed to be unnecessary. The nipper 5d is reciprocated by means of an arm 55 fixed on the shaft 55 which supports the reel 52, and bifurcated at its free end to engage the 'nipper 54. Another arm 5l, xed to the shaft 55, is similarly bifurcated to engage an arm 58 integral with or :fixed to the gripper jaw 2l and passing through a slot 59 in the unit I6.
The actuation of the staple forming and driving mechanism is controlledV by a cam 5B ixed upon the shaft 2 midway between the units I 3, and a rollery 5I carried by an arm EZand in contact with the periphery of the cam (Fig. 4). The arm 62 is pivoted at one end upon an angular bracket 63 Xed to the under face of the table l. The other end of the arm e2 is bifurcated to engage a sleeve 64 on a post 5 which supports a cross plate 66. The plate 65 extends below the plungers 35 (see Fig. 2) and the post S5 is guidedfor reciprocation in a bushing I'i formed at the free end of the bracket 63. A spring 68, surrounding the post 55, yieldably holds the roller 6! on the arm 62 in contact with the cam Si) and, when the roller 6I enters a depression 69 in the periphery of the cam, causes the arm e2 to raise the plate 66 and actuate the plungers 35. Mountedin each plunger 35 is a depressible plate V'lil (Fig. 6) resting upon a. spring 'il and adapted, when the plunger is raised, to Contact the lower end of the middle block 3l of the slide for a purpose which` will be pointed out hereinbelow.
The operation of the toe lasting machine shown in Fig. 1, in the lasting of the upper 6 of an opentoe shoe, will now be described. The operator The outer surface of` places the last 5, with the insole 15 xed to the bottom surface (as by the tacks 1G) and with the upper 6 slipped thereover, in position, bottom-y down upon the heel and toe rests l and 9. The lasting margins of the upper are inserted between the jaws 2! and the inner surfaces of the units I6. Since the toe of the shoe is clearly visible to the operator, any necessary shifting either of the last or of the upper-which, contrary to the usual practice, yhas not been previously side lastedcan be made so as to insure that the notch in the toe of the upper is in the correct position for the shoe being lasted. t will be noted that the table l is preferably inclined (see Figs. 3 and 4) so that the operato-r can determine visually that the upper is uniformly positioned on the last. The jaws 2l are then caused to grip the lasting margins, as by depressing the treadle (not shown). This movement of the jaws Zlalso, through the arms 5l, causes the nipper 54 to advance wire from the reel 53 through the orifice 5I. The wire enters the grooves in the upper ends oi the blocks 3l, 32 and rests therein below the anvils 23 and blades 48 and t9.
The shaft 2 is then set in rotation and the lasting operation is completed during a lsingle rotation of the shaft 2. The slides it? approach each other carrying the units iii which, due to the engagement of the pins i@ on the arms Iii with the slots 253, are swung from the parallel position shown in Fig. l into the inclined position shown in Fig. 5, whereby the upper is pulled over the last and the gripped lasting margins of the upper are wiped under the bottom of the insole 'l5 in position to be secured thereto by meH chanical fastening means. It will be noted that this inward movement of the units is along arcu" ate paths resulting from the combination of a bodily linear travel and an arcuate travel at the termination of which the units are below the insole in positions approximately parallel'to the contour of the edge o f the forepart (see Fig. 5). The cam 6i! is so mounted upon the shaft 2 that as soon as the units reach the position shown in Fig. 5, the arm 62 is released and the plungers 35 are raised to form and drive the staples. Since the trips 38 are in the notches 3Q the drivers 29 and the slide are raised simultaneously. The blocks 3l and 32 of the slide act to sever the wire5 fed by the nipper 54, at the blades i8 and "i9 and to bend the severed portionsvinto staples about the anvils 28. When the staples have been so formed, the trips 38 engage the cross bar 4l and disengage the slide from the drivers which continue to advance and at the same time the levers d2 are struck by the ears 4S to retract the anvils 2B, leaving the formed staples in the grooves milled in the sides of the blocks 3l, and the staples are forced by the drivers 2Q through the slots 25 into the lasting margins to secure them to the sole l5.
The cam titi then returns the arms 62 into the position shown in Fig. whereupon the springs 4l return the slide and drivers 29 to the position shown in Fig. 6. The plate l@ and spring 'il permit the plungers 35 to continue to advance the drivers 29 after the slide has reached the limit of its travel. As the slide returns to its normal position, the ears i5 engage the bell crank levers i2 and advance the anvils 28 to their normal position. Concomitantly with this action of cam iii), the cams i3 retract the slides IG. drawing the units l s back into parallelism. Since the anvils 28 Droiect from the outer face of the units into contact with the ends of the slides,
6 they will be advanced thereby in case the levers 42 fail to complete such advance. The last with the toe of the upper xed to the sole is then ready for further treatment as, for example, the lasting at the shank by the machine shown in Figs. Band 9.
The machine for lasting the upper at the shank of the shoe corresponds generally in structure and operation to the machine described above and the same reference numerals are employed. Since the lasting units i5 remain parallel at all times they are rigidly secured to the ends of the slides lil in any desired manner. The contour .of the gripper jaws 2l is, however, changed as shown in Fig. 9 to correspond with the contour of the shank portion of the last. The staple forming and driving mechanism is simplied because only a single staple is required at this portion of the shoe. Consequently only a single slot 25 (Fig, 8) is provided in each unit and the staple forming and driving mechanism is modied accordingly.
While certainl embodiments of the invention have been shown and described it will be understood that the invention is not limited thereto and that other embodiments may be made without departing from the spirit and scope of the invention as set forth in the following claims.
Iolaim:
1. A lasting machine comprising a frame, lastn ing units carried by said frame and movable toward and from opposite sides of the forepart of an upper carried by a last, said units including means for gripping the lasting margins of the upper, means for pulling o-ver the upper and means for wiping the lasting margins into contact with a sole also carried by the last, mechanism for forming staples from wire and driving them in to the wiped margins to secure the margins to the sole and means for feeding such wire,
power operated means for moving said units toward and from the upper and for actuating said staple forming and driving mechanism after the margins have been wiped into contact with the Sole and means, independent of said power operated means, for closing said gripping means and for actuating said wire feeding means.
2. A lasting machine comprising a frame, lasting units carried by said frame and movable toward and from opposite sides of the forepart of an lllODer carried by a last, said units including means for gripping the lasting margins of the upper, means for pulling over the upper and means for wiping the lasting margins into com tact with a sole also carried' by the last, mechanism for forming staples from wire and driving them into the wiped margins to secure the margine to the sole and means for feeding such wire, power operated means for moving said units toward and from the upper and for actuating said staple forming and driving mechanism after the margins have been wiped into contact with the sole and means, independent of said power operated means, for closing said gripping means and for actuating said wire feeding means simultaneously.
3. A lasting machine comprising a frame, means providing a last supporting surface on said frame for supporting the forepart of a last in the bottom-down position, slides in said frame movable toward and from opposite sides of the forepart of the last, lasting units supported by said slides and movable thereby toward and from the sides of the forepart, said units including wiping and gripping means adapted to seize the lasting margins of an upper carried by the last and having a wiping surface movable substantially in the plane of said last forepart supporting surface, means for closing said gripping meanameans for actuating said slides thereby moving said lasting units toward and from the sides of the forepart of the last, whereby the lasting margins of the upper are wiped into Contact with a sole on the bottom of the last and said units also including mechanism, actuated by the slide actuating means, for forming staples and driving the formed staples into the wiped-in lasting margins to secure such margins to the sole.
4. A lasting machine comprising a frame, means providing a last supporting surface on said frame fo-r supporting the forepart of a last in the bottom-down position, slides in said frame movable toward andv from opposite sides of the forepart of the last, lasting units supported by said slides and movable thereby toward and from the sides of the forepart, said units including wiping and gripping means adapted to seize the lasting margins of an upper carried by the last and having a wiping surface movable substantially in the plane of said last forepart supporting surface, means for closing said gripping means, means for actuating said slides thereby moving said lasting units toward and from the sides of the forepart of the last, whereby the lasting margins of the upper are wiped into contact with a sole on the'bottom of the last, each said unit also including mechanism for forming staples from wire and for driving the formed staples into the wiped-in lasting margins to secure such margins to the sole, the wire being fed by the means for closing the gripping means, and the unit supported mechanism being actuated by the means which actuates the slides.
5. A lasting machine comprising a frame, means providing a last supporting surface on said frame for supporting the forepart of a last in the bottom-down position, slides in said frame movable toward and from oppo-site sides of the forepart of the last, lasting units supported by said slides and movable thereby toward and from the sides of the forepart, said units including wiping and gripping means adapted to seize the lasting margins of an upper carried by the last and having a wiping surface movable substantially in the plane of said last forepart supporting surface, means for, closing vsaid gripping means, means for actuating said slides thereby moving said lasting units toward and from the sides of the forepart of the last whereby the lasting margins of the upper are wiped into contact with a sole on the bottom of the last, said units also including mechanism for forming staples from wire and for driving the formed staples into the wiped lasting margins to secure such margins to the sole, the wire being fed by the means for closing the gripping means and the unitcarried mechanism being actuated by the means which actuates the slides.
6. A lasting machine comprising a frame, means on said frame for supporting a last inthe bottom-down position, lasting units carried by said frame and movable toward and from opposite sides of the forepart of the last, each unit includingmeans for gripping the lasting margins of an upper carried by the last, means for pulling over the upper and means for wiping the said lasting margins into contact with a sole carried by the last, mechanism for forming staples from wire and for driving said formed staples into the wiped-in margins to secure them to the 8 sole and means for feeding such wire,v power operated means for moving said units toward and from the upper and for actuating said staple forming and driving mechanism after the margins have been wiped into Acontact with the sole and means, independent of said power operated means, for closing said gripping means and actuating said wire feeding means.
7. A lasting machine Ycomprising a frame,
means on said frame for supporting a last in the',Y
bottom-down position,l lasting units carried by said frame and movable toward and from opposite sides of the fo-repart of the last, eachunit including means for gripping the lasting margins of an upper carried by the last, means for pulling over the upper and means for wiping said lasting margins into contact with a sole carried by the last, mechanism for forming staples from wire and for driving said formed staples into the wiped margins to secure them to the sole and means for feeding such wire, power operated means for moving said units toward and from the upper and for actuating said staple forming and driving mechanism after the margins have been wiped into Contact with the sole and means, independent of said power operated means, for closing said gripping means and actuating said wire feeding means simultaneously.
8. A lasting machine for lasting the toe of an open toe shoe comprising a frame, means on said frame for supporting a last in the bottom-down position, having assembled thereon an upper and a sole, lasting units including means for gripping the lasting margins of the upper, said gripping means having faces for wiping the lasting margins oi the upper over the bottom of the sole;
'each unit including fastening inserting means,
stantially parallel relation with the edges of the forepart of said last, respectively, and power operated means for moving said units in the frames and the mechanism of said units in timed relation.
9. A lasting machine for lasting the to-e of an open toe shoe comprising a support for a lastv with an insole and an upper having an open toe assembled thereon, means, including stapling means having elongate staple passages, for gripping the lasting margins of the upper at both sides of the iorepart adjacent to the toe of the shoe, and means for advancing said gripping means, including said stapling means-toward each other along arcuate paths substantially parallel with and adjacent to the bottom'of the forepart of the insole whereby the upper is drawn snugly about the last and the lasting margins are drawn over the bottom surface of the insole and the stapling means is turned while advancing thereby bringing the staple'passages into substantially parallel relation with the edges of the forepart oi the last, respectively, and means actuated by said advancing means for driving staples substantially in parallel relation with the edges ofthe forepart of the last, respectively, into the lasting margins to secure said margins to the insole.
10. A lasting machine adapted for lasting the to-e portion of the forepart of a shoe, comprising a support fora last with an insole and an upper having an open toe assembled thereon, means, including stapling means, for gripping the lasting margins of the upper at both sides of the forepart, and means for advancing said gripping means, including said stapling means, toward each other along arcuate paths substantially parallel with and adjacent to the botto-m of the forepart of the insole whereby the upper is drawn snugly about the last and the lasting margins are drawn inwardly over the bottom of the insole, and means actuated by said advancing means for driving staples into the lasting margins to secure them to the insole.
1l. A lasting machine for lasting the toe of an open toe shoe comprising a frame, pivotally mounted lasting units supported by said frame, and movable in arcuate paths toward and from opposite sides of the forepart of a last having assembled thereon an upper and a sole, said units including means for gripping the lasting margins of the upper, means for pulling over the upper and means for wiping in said lasting margins comprising gripping elements and mechanism for forming staples from Wire and for driving the formed staples, one of said gripping elements having a wiping surface, said wiping surface having an opening through which staples are driven, and means for moving said lasting units to pull over the upper and to wipe the lasting margins into contact with the bottom of the sole and to secure said margins to said sole, and wire feeding means actuated by said gripping means.
12. A lasting machine adapted for lasting the toe portion of the forepart of a shoe comprising a table cut away to provide a recess, means on said table for supporting a last, having assembled thereon an upper and a sole, in the bottom down position, with the forepart of said last disposed above the recess in the table, slides in said table, lasting units including fastening inserting mechanisms supported on said slides, said units including means for gripping the lasting margins and means for wiping said margins over the bottom of the sole, and means for actuating said slides to move said units in arcuate paths toward and from opposite sides oi the iorepart of an upper carried by the last, said movement of the units being effective to pull the forepart of the upper over the last and to wipe said lasting margins into contact with the sole on the bottom of the last, said fastening mechanisms being actuated by said slide-actuating means after the margins are wiped into contact with the sole thereby securing said margins to the sole.
13. A lasting machine adapted for lasting the toe portion of the forepart of a shoe, comprising a table cut away to provide a recess, means on said table for supporting a last, having an upper and sole assembled thereon, in the bottom-down position, with the forepart thereof disposed above the recess in the table, slides in said table, lasting units including stapling mechanism supported on said slides and means for actuating said slides to move said units, toward and from opposite sides of the forepart of the upper carried by the last, in arcuate paths substantially parallel with and adjacent to the bottom of the insole, said units including means for gripping the lasting margins, prior to movement of the units, said movement of the units being effective to pull the forepart of the upper over the last and to draw said lasting margins into contact with the sole on the bottom of the last and to turn said stapling mechanism whereby staples driven by said mechanism are located in substantially parallel relation to the edges of the forepart of the sole, respectively, said staple mechanism being actuated by said slide-actuating means after the margins are drawn into contact with the sole thereby securing the lasting margins to the sole.
14. A lasting machine adapted for lasting the toe portion of the forepart of a shoe, comprising a table cut away to provide a recess, means on said table for supporting a last, having assembled thereon an upper and a sole, in the bottomdown position with the forepart thereof overhanging the recess in the table, slides in said table, lasting units, including means for gripping and stapling the lasting margins of the upper, pivotally attached to said slides, means for closing said gripping means upon said lasting margins, means for actuating said slides to move `said units toward and from opposite sides of the last after said lasting margins are seized by said gripping means, and means for swinging said units pivotally as they are moved by said slides to turn said gripping and stapling means in a plane substantially parallel with the bottom of the sole and to pull the forepart of the upper over the last and to draw said lasting margins into contact with the sole on the bottom of the last, said stapling and gripping means having staple-driving mechanisms, said mechanisms being actuated by said slide-actuating means, after the margins are wiped into contact with the sole, whereby the lasting margins are secured to the sole by staples driven through said margins into said sole.
15. A lasting machine comprising a frame, means having a last-supporting surface on said frame for supporting the forepart of a last in the bottom-down position, slides in said frame movable toward and from opposite sides of the forepart of the last, lasting units supported by said slides and movable thereby toward and from the sides of the forepart of the last, each unit including wiping and gripping means adapted to seize the lasting margins of an upper carried by the last and including a wiping surface movable substantially in the plane of said last forepartsupporting surface, means for closing said gripping means, and means for moving said slides in a plane substantially parallel with the bottom of the forepart of the last thereby moving said lasting units toward and from the sides of the forepart of the last whereby the lasting margins of the upper are wiped into contact with a sole on the bottom of the last.
JACOB S. KAMBORIAN.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,118,965 vStewart Dec. 1, 1914 1,710,729 Gouldbourn Apr. 30, 1929 1,854,204 Lawson Apr. 19, 1932 1,163,599 Cavanagh Dec, 7, 1915 1,293,162 Mills Feb. 4, 1919 1,409,190 McFeely Mar. 14, 1922 FOREIGN PATENTS Number Country Date 16.719 Great Britain July 20, 1911
US600433A 1945-06-20 1945-06-20 Manufacture of footwear Expired - Lifetime US2428803A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191116719A (en) * 1911-07-20 1912-07-22 Frank Howard Pochin Improvements in and relating to Rough-lasting Machines.
US1118965A (en) * 1913-05-03 1914-12-01 United Shoe Machinery Ab Pulling-over machine.
US1163599A (en) * 1912-11-22 1915-12-07 United Shoe Machinery Ab Machine for use in the manufacture of boots and shoes.
US1293162A (en) * 1915-02-12 1919-02-04 Gimson & Co Leicester Ltd Pulling-over and like machine.
US1409190A (en) * 1918-01-14 1922-03-14 United Shoe Machinery Corp Machine for shaping uppers to lasts
US1710729A (en) * 1925-11-24 1929-04-30 United Shoe Machinery Corp Machine for conforming uppers to lasts
US1854204A (en) * 1928-07-24 1932-04-19 United Shoe Machinery Corp Lasting machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191116719A (en) * 1911-07-20 1912-07-22 Frank Howard Pochin Improvements in and relating to Rough-lasting Machines.
US1163599A (en) * 1912-11-22 1915-12-07 United Shoe Machinery Ab Machine for use in the manufacture of boots and shoes.
US1118965A (en) * 1913-05-03 1914-12-01 United Shoe Machinery Ab Pulling-over machine.
US1293162A (en) * 1915-02-12 1919-02-04 Gimson & Co Leicester Ltd Pulling-over and like machine.
US1409190A (en) * 1918-01-14 1922-03-14 United Shoe Machinery Corp Machine for shaping uppers to lasts
US1710729A (en) * 1925-11-24 1929-04-30 United Shoe Machinery Corp Machine for conforming uppers to lasts
US1854204A (en) * 1928-07-24 1932-04-19 United Shoe Machinery Corp Lasting machine

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