US1512047A - Machine for working uppers over lasts - Google Patents
Machine for working uppers over lasts Download PDFInfo
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- US1512047A US1512047A US352324A US35232420A US1512047A US 1512047 A US1512047 A US 1512047A US 352324 A US352324 A US 352324A US 35232420 A US35232420 A US 35232420A US 1512047 A US1512047 A US 1512047A
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- Prior art keywords
- gripper
- sole
- over
- movement
- machine
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D21/00—Lasting machines
- A43D21/12—Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
- A43D21/125—Lasting 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
Definitions
- This invention relates to machines for working uppers over lasts and is herein shown as incorporated in a machine having means for pullinU the upper over the last and means 'tor wiping the upper intol lasted position round the toe, although it is to be understood that in many ot its aspects the invention is not limited to machines including both pulling-over means and lasting means nor to machines in which the means for laying the margin of the upper inwardly over the sole comprises end lasting wipers.
- overlaying means such as wipers
- the upper be conformed closely to the margin or feather of the sole or insole (hereinafter termed generically the sole), but that it be held also against substantial loss of such tension as may have been applied in conforming it to the top and the lateral periphery ot the last, It is also desirable that in the overlaying operation the upper be still further tightened over the lateral periphery of the last to produce a'sinooth and uniform contour along the edge o't the sole, An important feature of this invention consists in novel means whereby satisfactory results in these different respects are insured.
- the construction sh wn comprises an upperengaging presser device which projects over the feather of the solD in position to bend or press the margin ci the upper progressively outward over the wipers as the latter move inwardly and thus to increase the effectiveness ot the wipers in holding the upper against loss of tension and in tightening it over the last.
- the presser device has a beveled outer edge portion projecting over and spaced from the feather of the sole to provide a restricted opening into which the upper is to be wedged by the wipers.
- the overwiping means and the presser device are combined with means tor pulling the upper over the last prior to the overwiping operation, and a further important feature of the invention resides in an organization of this character whereby insurance is afforded of the effectiveness ot the. overwiping means in securing such control of the upper as to prevent objectionable loss of the pulling-over tension.
- the presser device serves additionally as a hold-down in engagement with the sole of the shoe on the bottom of the last, and still another advantageous feature is to be recognized in this aspect of the invention.
- a further feature of the invention consists in novel means of control tor a presser device or a hold-down, the presser and holddown device in the construction shown being movably mounted on a pulling-over gripper and connected to the sole restothe machine by means of a latch which is operated automatically at a predetermined time in the cycle of the machine to release the device and permit its withdrawal from operative position.
- the invention also provides, as a further iieature, novel means 'for imparting outdrawing movement to a gripper, this being accomplished in the construction shown by relatively movable members one ofwhich is carried by the gripper while another is part of the presser and hold-clown device hereinbefore described, the different members cooperating to wedge the gripper outwardly from the edge of the shoe bottom in its upper pulling movement.
- Still another feature of the invention designed particularly to insure against objectionable loss o; tension in upper pulling inachines, comprises novel gripper controlling means whereby a gripper is caused to relai; its hold on the upper only enough to permit relative slip between the gripper and the upper without substantial loss of tension as the overlaying means moves inwardly to do its work. T his result is accomplished in the construction shown by the co-operavtive action of two members one of which moves with the gripper and the other in a direction transverse to the direction of the pull. Still another feature consists in the combination of means for thus veetting a gradual release ot the upper and a presser device co-operating with the over-laying means as hereinbefore set forth.
- Machines of this type include in their general organization grippers for engaging and pulling the upper of a slice at the toe end land vat opposite sides of the orepart oi' a last positioned by means loli' a sole rest 2 and a heel rest et, means for laying the margin ofthe tensioned upper inwardly overthesole on the bottom of the last, and means for fastening the upper to the sole. Only oneoi" the two opposite side grippers is shown in the drawings, this gripper coniprising jaws 6.
- The-toe gripper in the construction shown comprises .two pairs of relatively movable jawsf22 which are mounted in a casing 211- to turn about axes substantially perpendicular to the sole in conformity to the contour yofthe shoe round the toe, the outerfor front jawo'f each pair being pivoted at yf26f-t ⁇ o the other jaw and connected yto an operating member 28 which is slidable up and down in the casing.
- the two members 28 are connected to the lower end of the gripper bar 30 which extends downwardly within the casing 2land is connected Vat its upper end to an .updraw flever32.
- the casing 24 is provided with lugslBd which are arranged to engage abra'clet 36 on the trame or' the machine to limit downward movement of the Casing and to permit the bar 30 in .its continued downward movement to impart openinomovement to the pivotedi gripper jaws, .the gripper opening .movement of the bar being effected against' the pressure of a f.
- this may be done by the use of a pivoted lever /13 on the Jfront end ot the lever 32, the lever i3 being connected by gear teeth to a pivoted ,releasing member le which carries a lug 43 engaging under an offset portion of' a slide 43 which is mounted on the gripper' bnr 30V and iscohnected at its lower end to the casi g 24.
- the present machine includes devices for overlaying and fastening the margin of the upper at they opposite sides of the shoe and devices for wiping the upper into lasted position and for fastening it round thetoe end of the shoe.
- This means comprises an arm 52 which is mounted to swing lengthwise of the shoe and carries at its lower end relatively movable wiper plates 54k which are advanced lengthwise of the shoe by the rearward movement of the arm and are simultaneously closed inward laterally of the shoe at the opposite sides by the side oveilaying and fastening devices in substantially the sa ne manner as explained in said Ashton patent.
- the arm 52 carries a plurality of tack holders 56 and corresponding ⁇ tack drivers 58 which are opferated by a driver bar 60 for driving the several tacks iiiV different locationsl round the toe to hold the upper in lasted position.
- Rearward movement . is imparted to the arm 52 'by means of a Slide 62 which is connected at its front end to the arm and is also operative to release the driver bar 60 when the tackers have been carried into proper relation to the shoe. It will be understood that by the action of the saine slide 62 the side overlaying and taclring devices are moved inwardly and rendered operative to drive their tacks.
- the present inacliine is designed to effect an overdrawinp; movement of ythe side grippers 6 in advance of the inwardly coming side overlaying and taclring devices, such movement being controlled as usual by the action of a slide (ilY which is moved rearwardly with the slide 62. lt will be noted by reference to Fig. l
- the slide 64C carries a roll in engage-L ment with the rear face of the toe gripper bar 30 to position the toe gripper initially lengthwise of the shoe.
- the present inachine no overdrawing movement of the toe gripper while holding the upper is contemplated, ,the gripper being held from rearward mov-ement at the time when the slide (Se moves rearwardly by mea-ns to be hereinafter described.
- the toe gripper will retain its hold of the upper until after the machine has been started to effect the overlaying and fastening operations and that the wipers 54e. instead of being positioned manually in engagement with the upper, will be entirely automatic in their operation on the shoe, will be more fully explained hereinafter.
- the machine is provided with an upper engaging presser device which in the construction shown also serves as a hold-down in engagement with the sole in front of the sole rest 2, this device comprising a pair of presser members or plates 66 curved in ape ⁇ proximate conformity to the curvature of the edge of the sole round the toe and pivotally mounted on a pin 68 to permit them to si i inward laterally of the shoe, the pin being held detachably by means of ay spring pin 70 in a. forwardly extending portion of a holder 72 which is pivoted at 74 onra slide 76 mounted in a guideway for upward and downward movement along the gripper casing
- ay spring pin 70 in a. forwardly extending portion of a holder 72 which is pivoted at 74 onra slide 76 mounted in a guideway for upward and downward movement along the gripper casing
- the 66 have beveled outer edge portion vide a wedge surface which in the opera ve position ot 'the plates projects outwardly over and faces the feather a of the sole and that a narrow space or opening ⁇ is thus provided between the projecting edge of die plates and -the feather of the sole into which the margin of the upper must be forced by the action of the wipers
- the plates act to press or bend the margin of the upper outwardly over' the wipers and thus to increase the effectiveness ofthe wipers in their frictional hold upon the stock and to render them effective to hold the upper against slip earlier in their inward movement than if such a device were not provided.
- Fig. 3 The initial position of the presser plates 66 and their supporting mea-ns is indicated in Fig. 3, in which the slide 76 is held by means 4of aspring 82, which extends downwardly in recess inthe slide, in its uppermost 'position determined by engagement of a lug 84 'at the lower end of the slide with the lower face ofthe casing 24.
- the holder 72 In this position of the parts the holder 72 is locked against upward movement by means of a latchrQO which hooks under a projection 92 in a recess in the end of the sole rest 2, t-he vlatch being mounted on a pivot 94 on the holder 7 2 with its' lower end normally pressed outward by a spring 96.k
- the plates are thus held by the sole rest against upward movement away from the sole, and are also held by engagement of the end of the sole rest with the holder 72 against bodily rearward movement over the sole while the gripper is operated bythe lever 32 togpull the upper.
- the holder 72 is provided with wedge faces 98 ⁇ which cooperate with wedge faces 100 formed on lugs 102 on the casing 24 to wedge the gripper n forwardly as it moves upwardly, the holder 72 being restrained from rearward movement by ,the action of the sole rest to cause it to serve las an abutment against the rearward pressure kofthe gripper.
- the latch 90 is operated to release the holder 72 from the sole rest and permit the springs S2 and to act respectively to move the slide 76 to its uppermost position relatively to the gripper and to swing the holder 72 inwardly toward the gripper.
- the gripper For this purpose there is utilized afurther upward movement of the gripper during which its jaws are peri ,i5 'radar mitted to slip over the margin of the upper as will behereinafter explained.
- the machin'e is provided with means forel'lecting a vgradual,release of the upper by the ltoe gripper as the wipers move inward-ly, kwithout permitting the gripper to lose substantial control of the upper until the wipers -are suiliciently far advancedpto render them elllectiv'e to hold the upper.
- power means is provided to operate the mechanism hereinbefore referred to as means whereby the toe gripper may be opened manual-ly.
- this member is provided with a depending portion upon which there is mounted a contact block 108 in position to be engaged by a roll-110 which is supported on the outer end of the slide 62.
- the rolls 110 begins to operate the member 44 when the wipers have been moved substantially or approximately to the position illustrated in Fig. 4 and have thus begun to press the up er inwardly over the feather of ⁇ the sole.
- ⁇ T e effect of the roll 110 on theV member 44 is to cause theijaws to relantheir pressure slightly on the upper, enough tol permit them to slip .over the upper under the influence of the updraw spring 40 which tends constantly to move the lever 32 and the gripper farther upwardly. ⁇
- the gripper jaws may still engage the upper with sufficient pressure to render them eiectiv'e to prevent substantial loss of the ⁇ -i ing of the machine the tension of the upper until the wipers have advanced fai' enough to hold the upper' effectively in. coi-operation with the plates 66, the front face of the block 108 which is engaged by the roll 110 is inclined to the direction of pulling movement of the gripper.
- the gripper releasing effect of the roll 110 in its rearward movement is partially counteracted by the upward movement of the gripper and the block 108 as the jaws slip over the stock.
- the angle of inclination of the front face o-f the block 108 is so proportioned to the movement of the roll 110 that the roll after its initial action on the member 44 to cause the jaws to relax their pressure on the upper maintains the member in a substantially uniform relation to the gripper and thus keeps the pressure of the substantially constant on the margin of the upper .until the latter finally slips from between the jaws.
- the time when the ico-11110 begins to act on t-he member 44 may be varied by adjustment of the block j 108 forwardly or rearwardly on the depending portion of the member 44, the block being held in adjusted position by means of a clamping screw 111 and backed up by a set screw 112.
- Vsaid holddown having an outer edge portion curved in substantial conformity tor ther curve ofr edge of the sole and providedfwithi anV outwardly directedfwedge surfaceV projecting over and facing the feather or the sole to wedge the upper against the Yleather or the sole as it is wiped inwardly and controlling means automatically operative to position said holddown tor engagement with the sole and to withdraw it from operative position.
- said device comprising a pair or plates mount-ed toV swing' inwardly laterally or' the shoe in response to pressure orV the upper, and means tor holding said device trom bodilyv movement lengthwise or the shoe in response to such pressure.
- ll. ln a machine or the class described, the combination with means for laying an upper inwardly over the margin or a sole on a last, or a presser device arranged to be positioned over the sole and to engage the margin or the upper and bend it progressively outward over the loverlaying means in the course et the overlaying operation, a device movable inyvardly over the sole for tastening the upper in overlaid position, and means automatically operative to move said presser device out of its yoperative position prior to the operation or the fastening device.
- the combination with a wiper mounted tor ⁇ mor-Jement or the wipers to withdraw movement to wipe an upper inwardly over a sole on a last ot a presser device arranged to be positionld on the sole with an edge portion projecting outwardly for engagement with the upper to bend it outwardly over the wiper in the overwiping operation, and means automatically operative in time relation te the wiper to withdraw said device trom operative position prior to the completion or the operation or the machine on the shoe.
- a machine ot the class described, the combination with a wiper mounted for movement to .vipe an upper inwardly over the Yleather or a sole on a last, of a presser device arranged to be positioned over the sole and to engage the margin ofthe upper on the opposite side trom the wiper tor increasing the rrictional hold ot the wiper on the upper as the wiper moves inwardly, spring means for from operative position, and a latch arranged to be operated to release the device to the action or said spring means.
- l5. a machine or the class described, the combination with a wiper mounted 'for movement to wipe an upper inwardly over the feather or a sole on a last, or a presser device arranged to be positioned over the sole and to engage the margin or the upper on the opposite side ⁇ trom the wiper for increasing the rrictional hold or the lwiper on the upper as the wiper moves inwardly, a sole rest, a latch 'tor connecting said presser de .rice te the sole rest to hold the device in operative position, spring means for withdrawing the device from operative position, and means tor operating the latchto release the device to the action or said spring means.
- the combinationwith means for pulling an upper. over alast and means for wiping the margin ofthe upper inwardly over the soleo ftli'eshogof a presser' device arranged to the combinationwith a gripper for pulling anyupper at the toe of a last and end einsition in braeingwipers for wiping the margin of the Vupper inwardly over.
- a presser device arrangec'r to be positioned on the sole and to enagothe margin ofthe upper on the opposite side from the wipers for increasing' the ifi'ictionalhold ofthe wipers on the upper, and means igor withdrawing said device fromoperative potime relation to the inoveinentof the wipers.
- off-a presser device arranged to be positioned over thefsole and to engage the upper on'the opposite side from the overlayinginember to increase thev eiiective heldv of' said I' member? on the upperk inV the -oveilaying operation, said device b'eing mounted on the gripper'iformovement-into'and outr of operative position.
- apresser device arranged to project outwardly over the feather of the sole in position to engagethe margin of. theupper and'bend it. outwardly” over the wiper as the wiper moves inward ly, said devicev b e1 ing vmounted on the gripper, a-solerest',l and means for connecting said d'evicetol the sole rest to maintain the ldevice inoperative position during .thev upper pulling movefv 7o ment oi" the gripper.
- 24.111 a mach-ine offgthe class described, 9U the combination with a gripper forU pulling anupper over a last,V oia hold-down mount.”- ed on the gripper for engagement with the sole of the shoe, asole rest, a.. latch for connecting the vho lc ⁇ l 'down ⁇ to the sole 95 rest to maintain.v the hold-'down in op-Y erative position during the upper p iill ing operation, andmeans for operatingsaid latch vrsubsequently torelease the'fh'oldf'down,
- spring means for withdrawing the hold ⁇ down Jfrom operative position, and means for operating said latch to release the hold-y down to the action of said spring means.
- a gripper comprising jaws relatively movable to grip or to release an upper, and a lever for operating the gripper to pull the upper, of a manually operative device on said lever for etiecting a relative Aopening movement of the gripper jaws,
- Aand power operated means movable into engagement with said device to open the jaws in the Course ot the cycle of operations ot the machine.
- ot gripper opening means comprising a member movable to eitect a relative opening movement of said jaws proportional to the extent of movement ot the member, and a power operated member tor imparting movement to said iirst member to effect a gradual opening of the jaws in the course ot' the overlaying operation.
- a gripper comprising relatively movable jaws and a gripper bar and a casing relatively movable to close or to open said jaws, and means movable to lay the margin of the upper over the soie' ot' the shoe, of a member connected to said casing for moving it to open the jaws progressively torelease the upper after the upper has been pulled, and a power operated member mounted tor movement with. said overlaying means to operate said first member.
- the combination with an upper pulling gripper comprising jaws relatively movable to grip or to release an upper, and means movable to lay the margin ot' the upper inwardly over the sole of the shoe, of.
- means for ope-ning thegripper to release the upper including a member movable to effect a relative opening movement ot said jaws proportional to the extent oi' movement of the member, and a power operated member carried by the overlaying means and movable into engagement with said iirst member to operate it, one of said members comprising a part adjustable to vary the time ot opening of the jaws.
- the combination with an upper pulling gripper comprising jaws relatively movable to grip or to release an upper, of means tor opening the gripper to release the upper including a member movable to etl'ect a relative opening movement ot said jaws proportional to the extent of movement of the member, a member mounted tor movement into engagement with said first member to operate it, and means for ell'ecting an additional relative movement of said members after their engagement with each other in suc-h a direction as partially to counteract the eitect ot said operating member and retard the opening of the jaws.
- a machine ot the class described ⁇ the combination with an upper pulling gripper comprising jaws relatively movable to grip or to release an upper, ot means for opening the gripper to release the upper including a member movable relatively to the gripper to etl'ect a relative opening movement ot said jaws proportional to the extent ot movement of the member and movablel also bodily with the gripper in the direction ot the pull as the jaws relaX their hold on the upper, and a member mounted tor movement in a direction transverse to thc direction ot the ⁇ pull to operate said first member, one of said members having a contact tace engaged by the other and inclined to tne direction ot movement ot the operating member to cause the opening ot ther jaws to be ettected gradually by the action ot the operating member as the gripper is moved when the gripping pressure is relaxed.
- the combinationv with an upper pulling gripper comprising jaws relatively movable to grip or to release an upper, and spring means tor moving the gripper to pull the upper and tor moving it farther as it releases the upper, of gripper opening means including a member movable relatively to the gripper ⁇ to effect a relative opening movement ot said jaws proportional to the extent oit movement ot the member and movable also bodily with the grip-per as the latter is moved by said spring means, and a member movable in a direction transverse to the direction ot the pull ot the gripper to operate said iirst member, one of said members having a contact face engaged by the other and inclined to the direction of movement ot the operating member tofrender :gradual the gripper opening feliect dl said operating member and cause the gripper to slipfon the upper whilfestillfholding it Iwith substantialpressure asi-it is 'retracted'by its spring.
- gripper opening means 'automatically operati-cc in the course of the movement ol :said wipersito cause the gripperto relax'is lhold 'on the upper :and yApern'iit the @upper torslip f inf the V,.
- oi'gripper 'openingr means f 'comprisingaa men'lber associated lwithtlre grippe )and another member mov- 'JIS- vent Vsubstan'tial ⁇ loss ofi. the pullingovefr l tension.
- a toe gripper comprising jaws relatively movable to grip or to release an upper and end embracing wipers movable 'to wipe the margin of the upper into lasted position round the toe
- gripper opening means comprising a member movable bodily with the gripper in the direction oi" the pull and movable also relatively to the gripper to effect a relative opening movement of the jaws proportional to the extent of movement of the m-ember, and an operating member movable with the wipers in a direction transverse to the direction or the pull ⁇ to operate said lirst member, said members having -their contact faces disposed in such relation to the direction of the pull as to cause the jaws to slip on the upper without entirely releasing it as the wipers move inwardly.
- a gripper for pulling an upper over a last, a wiper movable to wipe the margin of the upper inwardly over the sole of the shoe, a presser device for engaging the upper on the opposite side from the wiper to increase the frictio-nal hold of the wiper on the upper. and a gripper opening device automatically operative lto cause the gripper to relax its hold on the upper and permit the upper to slipl without entirely releasing it as the. wiper'moves inwardly.
- a gripper tor pulling an upper over a. last, a wiper movable to wipe the margin of the upper inwardly over the sole of the shoe, a presser device arranged to be positioned on the sole and to bend the margin of the upper progressively outward o-ver the wiper the wiper moves inwardly
- gripper opening means'comprising a member associated with the gripper and movable to effect a gradual opening of the gripper jaws, ⁇ and a member movable with the wiper tov operate said iirst member, said members being so constructed and arranged
- a. gripper tor pulling an upper over a last
- a wipe-r for wiping the margin of Ithe ripper inwardly over the sole of the shoe
- a presser device for engaging the margin of the upper on the opposite side from the wiper to increase the itrictional hold of the wiper on the upper
- a gripper opening device automatically operative as the wiper moves inwardly to causethe jaws to relax their hold on the upper and permit it to slip while still maintaining a. substantial hold on the upper
- a gripper for pulling an upper over a last, a wiper for wiping the margin of the upper inwardly over the sole of the shoe, a presser device mounted on the gripper for enga-gement withv the margin of the upper on the opposite side from the wiper to increase the trictional hold of the wiper on the upper, a sole rest, a latch connecting said presser device to the sole rest, a taclrer movableinwardly with the wiper, means automatically operative in the inward movement of the wiper to cause the gripper to relax its hold on the upper and permit it to slip, and a device movable with the gripper as it slips on the upper to operate said latch and release the presser device from the sole rest.
- the combination with a gripper mounted for movement to pull4 an upper over a last7 of a hold-down for engaging the sole of the shoe, and means for producing a wedging action between said hold-down and gripper to force the ⁇ gripper outwardly -from the edge of the shoe bottom in its upper pulling movement.
- the combination with a gripper mounted for movement to pull an upper over a last, of a solerest, and a device positioned by said sole rest for wedging the gripper laterally outward from the edge of the shoe bottom in its upper pulling movementb 5l VIn a machine of the class described.
- lnfiafmachine of -the class described, etheicombina-tion withfasolerest, and a wiper y:for wip in g; the fm argin of. an upper inw ardly meiwthe sole, of a 'member arranged relaltively tolsa'id sole rest vfor engagement with ztiiemarginal portion of the -sole of iashoe positioned bylsaidsole rest ⁇ and constructed tto .provide a restricted Vopening .between it and the feather of the sole to receive the upperforced inwardly by the wiper, and mechanism rautomatically operative to with- .'dnaw Ysaidinember from operative position "after-the Iwiper/has forced the margin of the'up er-intosaid opening.
- the combination with a gripper for pulling an upper over a. last, and a wiper forwiping the margin ofthe upper inwardly over the bottom of the'last, of a memberfor engaging the margin of the upper yand Lpressing'it loc against the wiperas the wiper moves inwardly, mechanism automatically operative in the inward movement of the wiperto revlaX the pressuref of the :gripper onthe margin of the upper and,permitthegripper to slip on'said margin while it still maintains control of the upper, and mechanism controlled by said gripper a-szitslips on'the upper for withdrawing said :member ⁇ from operative position.v
- the combination with means for working an upper over a last, o a sole rest, a holddown supported independently of the sole rest for engagement with the marginal portion or the sole, a connection between said holddown and the sole rest for maintaining the holddown in. position to engage the sole, and means for withdrawing the holddown trom operative position.
- the combination with means for laying the margin of an upper over the bottom ont a last, of a sole rest, a holddown mounted in dependently of the sole rest for engagement with the marginal portion or the sole, a connection between said holddown and the sole rest for maintaining the holddown in operative position, and mechanism arranged to be controlled by the movement of said overlaying means for disconnecting the holddown from the sole rest.
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
` Oct. 21 1924. 1512,@4'1
W. C. STEWART MACHINE FOR. WORKING UPPERS OVER LASTS Filed Jan. 19. 1920 2 Sheets-Shes?. 1
Qct. 21 1924.
W. C. STEWART MACHINE FOR WORKING UPPERS OVER LAsTs Filed Jan. 19. 1920 2 Sheets-Sheet. 2
Patented Got. 21, 1924.
UNITED STATES PATENT OFFICE.
WILLIAM C. STEWART, OF SWAMPSCO'TT, M SSACHUSETTS, ASSIGNOR T0 UNITED SHOE MACHINERY CORPORATION, OE PATERSON, NEW JERSEY, A CORPORATION 0F NEW JERSEY.
MACHINE FOR 'WORKING UPPERS OVER LASTS.
Application filed January 19,4 1920. Serial No. 352,324.
To all whom it may concer/lt.'
Be it known that I, WILLIAM C. STEWART, a subject of the King of England, residing at Swampscott, in the county of Essex and State of Massachusetts, have invented certain Improvements in Machines for Vilorlring Uppers Over Lasts, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several ligures.
This invention relates to machines for working uppers over lasts and is herein shown as incorporated in a machine having means for pullinU the upper over the last and means 'tor wiping the upper intol lasted position round the toe, although it is to be understood that in many ot its aspects the invention is not limited to machines including both pulling-over means and lasting means nor to machines in which the means for laying the margin of the upper inwardly over the sole comprises end lasting wipers.
In the operation ot overlaying means, such as wipers, it is important not only that the upper be conformed closely to the margin or feather of the sole or insole (hereinafter termed generically the sole), but that it be held also against substantial loss of such tension as may have been applied in conforming it to the top and the lateral periphery ot the last, It is also desirable that in the overlaying operation the upper be still further tightened over the lateral periphery of the last to produce a'sinooth and uniform contour along the edge o't the sole, An important feature of this invention consists in novel means whereby satisfactory results in these different respects are insured. The construction sh wn comprises an upperengaging presser device which projects over the feather of the solD in position to bend or press the margin ci the upper progressively outward over the wipers as the latter move inwardly and thus to increase the effectiveness ot the wipers in holding the upper against loss of tension and in tightening it over the last. advantageously, in the construction shown, the presser device has a beveled outer edge portion projecting over and spaced from the feather of the sole to provide a restricted opening into which the upper is to be wedged by the wipers. In
the illustrative construction the overwiping means and the presser device are combined with means tor pulling the upper over the last prior to the overwiping operation, and a further important feature of the invention resides in an organization of this character whereby insurance is afforded of the effectiveness ot the. overwiping means in securing such control of the upper as to prevent objectionable loss of the pulling-over tension. ln the construction shown, moreover, the presser device serves additionally as a hold-down in engagement with the sole of the shoe on the bottom of the last, and still another advantageous feature is to be recognized in this aspect of the invention.
A further feature of the invention consists in novel means of control tor a presser device or a hold-down, the presser and holddown device in the construction shown being movably mounted on a pulling-over gripper and connected to the sole restothe machine by means of a latch which is operated automatically at a predetermined time in the cycle of the machine to release the device and permit its withdrawal from operative position.
rThe invention also provides, as a further iieature, novel means 'for imparting outdrawing movement to a gripper, this being accomplished in the construction shown by relatively movable members one ofwhich is carried by the gripper while another is part of the presser and hold-clown device hereinbefore described, the different members cooperating to wedge the gripper outwardly from the edge of the shoe bottom in its upper pulling movement. l
Still another feature of the invention, designed particularly to insure against objectionable loss o; tension in upper pulling inachines, comprises novel gripper controlling means whereby a gripper is caused to relai; its hold on the upper only enough to permit relative slip between the gripper and the upper without substantial loss of tension as the overlaying means moves inwardly to do its work. T his result is accomplished in the construction shown by the co-operavtive action of two members one of which moves with the gripper and the other in a direction transverse to the direction of the pull. Still another feature consists in the combination of means for thus veetting a gradual release ot the upper and a presser device co-operating with the over-laying means as hereinbefore set forth.
The above and other features of the inven-tion, inclu-ding certain details lot' -con- E ig. .-3 is a perspective view ,O lille toe gripper and associated parts of the struc.- tue, and i Figs. il, :5 .and .6 are views on an enlarged scale illustrating successive stages in the operation .of the machine. l
'lllieinvention is herein shown vas incorporated in a well-known type .of pullingover y machine characteristic features ot v which are shown and described in detail in VUnited States Letters -Patent No. 1,029,387
vgranted on yJune 11, `1912 .upon :an application or' R. l?. Mc'Feely, and other features ofy which, relating more 'particularly .to the ovrwiping .andfastening means are shown and described in Patent- No. 1,280,613 grant ed on October 1.1 1918 upon an application of Qrrell Ashton, and for a more complete understanding of such details of construction as are not hereinafter fully described reference may be made to these prior patents. Machines of this type include in their general organization grippers for engaging and pulling the upper of a slice at the toe end land vat opposite sides of the orepart oi' a last positioned by means loli' a sole rest 2 and a heel rest et, means for laying the margin ofthe tensioned upper inwardly overthesole on the bottom of the last, and means for fastening the upper to the sole. Only oneoi" the two opposite side grippers is shown in the drawings, this gripper coniprising jaws 6. connected by bar 3 to an updraw lever 10 which is pivotel on bar 12 and is connected at its rear end through a spring 14 to a vertically movable slide 16 operated by means of a cam 18 on a cam shaft 2O to which movement is imparted intermittently from pulley 21 under the controlvv of well-known clutch mechanism characteristic of this type of machine. It will be understood that the upper at the opposite sideof the last is pulled by similar mechanism also, c.eliminatedv to the .slide 16.
The-toe gripper in the construction shown comprises .two pairs of relatively movable jawsf22 which are mounted in a casing 211- to turn about axes substantially perpendicular to the sole in conformity to the contour yofthe shoe round the toe, the outerfor front jawo'f each pair being pivoted at yf26f-t`o the other jaw and connected yto an operating member 28 which is slidable up and down in the casing. The two members 28 are connected to the lower end of the gripper bar 30 which extends downwardly within the casing 2land is connected Vat its upper end to an .updraw flever32. The casing 24 is provided with lugslBd which are arranged to engage abra'clet 36 on the trame or' the machine to limit downward movement of the Casing and to permit the bar 30 in .its continued downward movement to impart openinomovement to the pivotedi gripper jaws, .the gripper opening .movement of the bar being effected against' the pressure of a f.
spring y38 which bears oppositely Vagainst the 2d and the bar 30.V In the initial portion of' the upward movement of the bar 30 the spring 38 acts to hold the casing yin its lowermost .position and thus to render the bar operative, by movement of the members 23, to close the aws on the upper, anl after the aws have firmly gripped vthe upper the casing and both pairs of jaws are moved upwardly together .by the action of the gripper har to pull the upper. Y 'l The upper pulling movement is imparted to the toe gripper lever 32 through a spring 40 by the action of a vertically movableV slide 41 operated by a cam l2 on the cam shaft 20. If it is desired to open the toe gripper after the upper has been pulled in order, for example, to re-adj'ust the upper in the gripper jaws, this may be done by the use of a pivoted lever /13 on the Jfront end ot the lever 32, the lever i3 being connected by gear teeth to a pivoted ,releasing member le which carries a lug 43 engaging under an offset portion of' a slide 43 which is mounted on the gripper' bnr 30V and iscohnected at its lower end to the casi g 24. pressing the lever i3 upwardly the slide e173 is elevated and upward movement is thus imparted to the casingl and to the two pairs of jaws while the bar and the members 28 are held against such movement by the lever 32, and the pivoted jaws are'thns opened by the action ofthe members 23 distance proportional to the extent of movement of the member ld-x These 'tea-tures ot construction of the toe gripper and ot the means whereby itsjaws may be opened man ually are substantially the same asV in the disclosure of United .ttates Letters Patent No, 1,137,566 granted on April 27, 1915i .upon an application of Orrell. Ashtony to which reference may be made for a .more completer understanding of the details of the structure. -It will bey understood that in the opera'- tion of the machines of this general type the machine comes automatically to rest after the upper has been pulled by the grippers and while it is held under tension to permit the operator to observe the condition of the work and to malre such adjustments as may be required. Then the machine is again started, side clamping and supporting devices are swung inwardly into operative relation to the shoe, and either immediately, or following another pause in the cycle, the overlaying and fastening operations are performed. ln common with the machine shown in prior Patent Yo. 1,280,613, the present machine includes devices for overlaying and fastening the margin of the upper at they opposite sides of the shoe and devices for wiping the upper into lasted position and for fastening it round thetoe end of the shoe. For an understanding of the present invention it is only nec essary to refer in detail to the means for overwiping and fastening the upper at the toe. This means comprises an arm 52 which is mounted to swing lengthwise of the shoe and carries at its lower end relatively movable wiper plates 54k which are advanced lengthwise of the shoe by the rearward movement of the arm and are simultaneously closed inward laterally of the shoe at the opposite sides by the side oveilaying and fastening devices in substantially the sa ne manner as explained in said Ashton patent. As also described in said patent, the arm 52 carries a plurality of tack holders 56 and corresponding` tack drivers 58 which are opferated by a driver bar 60 for driving the several tacks iiiV different locationsl round the toe to hold the upper in lasted position. Rearward movement .is imparted to the arm 52 'by means of a Slide 62 which is connected at its front end to the arm and is also operative to release the driver bar 60 when the tackers have been carried into proper relation to the shoe. It will be understood that by the action of the saine slide 62 the side overlaying and taclring devices are moved inwardly and rendered operative to drive their tacks. As in the machines described in said prior patents, the present inacliine is designed to effect an overdrawinp; movement of ythe side grippers 6 in advance of the inwardly coming side overlaying and taclring devices, such movement being controlled as usual by the action of a slide (ilY which is moved rearwardly with the slide 62. lt will be noted by reference to Fig. l
that the slide 64C carries a roll in engage-L ment with the rear face of the toe gripper bar 30 to position the toe gripper initially lengthwise of the shoe. ln the present inachine, however, no overdrawing movement of the toe gripper while holding the upper is contemplated, ,the gripper being held from rearward mov-ement at the time when the slide (Se moves rearwardly by mea-ns to be hereinafter described. ln distinction also from the disclosure of prior Patent No. 1,280,613 it is contemplated that in the present machine the toe gripper will retain its hold of the upper until after the machine has been started to effect the overlaying and fastening operations and that the wipers 54e. instead of being positioned manually in engagement with the upper, will be entirely automatic in their operation on the shoe, will be more fully explained hereinafter.
For a purpose of the present invention the machine is provided with an upper engaging presser device which in the construction shown also serves as a hold-down in engagement with the sole in front of the sole rest 2, this device comprising a pair of presser members or plates 66 curved in ape` proximate conformity to the curvature of the edge of the sole round the toe and pivotally mounted on a pin 68 to permit them to si i inward laterally of the shoe, the pin being held detachably by means of ay spring pin 70 in a. forwardly extending portion of a holder 72 which is pivoted at 74 onra slide 76 mounted in a guideway for upward and downward movement along the gripper casing By reference to Fig. 2 and also to l, and 6, it will be seen that the 66 have beveled outer edge portion vide a wedge surface which in the opera ve position ot 'the plates projects outwardly over and faces the feather a of the sole and that a narrow space or opening` is thus provided between the projecting edge of die plates and -the feather of the sole into which the margin of the upper must be forced by the action of the wipers As the wipers close inwardhY the plates (it) act to press or bend the margin of the upper outwardly over' the wipers and thus to increase the effectiveness ofthe wipers in their frictional hold upon the stock and to render them effective to hold the upper against slip earlier in their inward movement than if such a device were not provided. lt will also be evident that the beveled edge pou tions of the plates act to wedge the upper downward against' the teather of the sole. tpg Wpgys in l "ion shown being downwardly v i of a spring TS as in the construction described in latent No. 1,280,613. ln order to accommodate the plaies (3G to different shapes or sizes of shoesthcj: are permitted to ield inwardly about their pivot 68 againstthe tension of a spring 8O which tends to spread them apart. hey may thus project initially farther outward over the feather of the sole at the sides than is indicated in Fig. 2 and as the wipers close inwardly they may yield laterally of the shoe in 'respense "to the pressure ofthe upper while acting with their outwardly bending and clamping effect on the upper at the sides ,as well vas at the extreme end of the toe. For wide variations in shape and siae different sets of plates; may be used, the spring pin 70 readily yielding to permit such replacement.
The initial position of the presser plates 66 and their supporting mea-ns is indicated in Fig. 3, in which the slide 76 is held by means 4of aspring 82, which extends downwardly in recess inthe slide, in its uppermost 'position determined by engagement of a lug 84 'at the lower end of the slide with the lower face ofthe casing 24. In this position of the parts vthe holder 72 is swung inwardly into substantially parallel relation tothe slide 76 by a leaf spring 86 which at its lower end is fast on the holder 7 2 and atnits upper fend hears on a pin '88 on the slide.y rlhe presser plates 66 aire thus posit'i'oned close to the gripper jaws for engagement with the sole when the shoe is'` presented Vto the Amachine and the margin of the upper is inserted within the jaws. In this position of the parts the holder 72 is locked against upward movement by means of a latchrQO which hooks under a projection 92 in a recess in the end of the sole rest 2, t-he vlatch being mounted on a pivot 94 on the holder 7 2 with its' lower end normally pressed outward by a spring 96.k The plates are thus held by the sole rest against upward movement away from the sole, and are also held by engagement of the end of the sole rest with the holder 72 against bodily rearward movement over the sole while the gripper is operated bythe lever 32 togpull the upper.
1n order to impart to the gripper a forward or outward movement relatively to the edge of the shoe bottom to cause the gripper jaws to clear the presser plates and the edge of the sole as well as todraw the upper forwardly at the toe, the holder 72 is provided with wedge faces 98`which cooperate with wedge faces 100 formed on lugs 102 on the casing 24 to wedge the gripper n forwardly as it moves upwardly, the holder 72 being restrained from rearward movement by ,the action of the sole rest to cause it to serve las an abutment against the rearward pressure kofthe gripper. After the overwiping operation has beensubstantially or approximately completed the latch 90 is operated to release the holder 72 from the sole rest and permit the springs S2 and to act respectively to move the slide 76 to its uppermost position relatively to the gripper and to swing the holder 72 inwardly toward the gripper. For this purpose there is utilized afurther upward movement of the gripper during which its jaws are peri ,i5 'radar mitted to slip over the margin of the upper as will behereinafter explained. des the gripper is thus moved upwardly, lugs 104 upon the casing24 are carried into engagement with inwardly projecting lingers 106 on the upper end of the pivoted latch 90 and actto swing the lower end of the lat-oh forwardly until it disengages the projection 92on the sole rest. The presser plates are thus withdrawn above the `work` out of the path of movementl of the inwardly moving tacirer mechanism and are returned to their initial position relatively to the gripper jaws.
ln order to insure that the wipers 54 'in co-operation with the presser plates 66 shall secure an effective hold-of theY upper such as to prevent 'loss of the pulling-over tension, the machin'eis provided with means forel'lecting a vgradual,release of the upper by the ltoe gripper as the wipers move inward-ly, kwithout permitting the gripper to lose substantial control of the upper until the wipers -are suiliciently far advancedpto render them elllectiv'e to hold the upper. For this purpose power means is provided to operate the mechanism hereinbefore referred to as means whereby the toe gripper may be opened manual-ly. As already explained, movement of the releasing member 44 by the actionof the lever'43 draws the bar 48 and the gripper casing 24 upwardly along the relatively stationary. gripper bar 30 and thus causes the pivoted frontjaws of the gripper to open a. distanceV proportional to the movement'of the member 44. In the construction shown this member is provided with a depending portion upon which there is mounted a contact block 108 in position to be engaged by a roll-110 which is supported on the outer end of the slide 62. As'theslide 62 is moved rearwardly to swing the arm 52 and its supported wiper andta'cker mechanisms toward the shoe theroll 110 is carried into engagement withtheV block 108 and by the continued movement of the slide'` the member 44 is thus turned about its ivot in a direction to open the gripper jaws. Preferably the partsy are so arranged that the roll 110 begins to operate the member 44 when the wipers have been moved substantially or approximately to the position illustrated in Fig. 4 and have thus begun to press the up er inwardly over the feather of` the sole. `T e effect of the roll 110 on theV member 44 is to cause theijaws to relantheir pressure slightly on the upper, enough tol permit them to slip .over the upper under the influence of the updraw spring 40 which tends constantly to move the lever 32 and the gripper farther upwardly.` In order that the gripper jaws may still engage the upper with sufficient pressure to render them eiectiv'e to prevent substantial loss of the` -i ing of the machine the tension of the upper until the wipers have advanced fai' enough to hold the upper' effectively in. coi-operation with the plates 66, the front face of the block 108 which is engaged by the roll 110 is inclined to the direction of pulling movement of the gripper. 1t will be evident that by this construction the gripper releasing effect of the roll 110 in its rearward movement is partially counteracted by the upward movement of the gripper and the block 108 as the jaws slip over the stock. Preferably the angle of inclination of the front face o-f the block 108 is so proportioned to the movement of the roll 110 that the roll after its initial action on the member 44 to cause the jaws to relax their pressure on the upper maintains the member in a substantially uniform relation to the gripper and thus keeps the pressure of the substantially constant on the margin of the upper .until the latter finally slips from between the jaws. The time when the ico-11110 begins to act on t-he member 44 may be varied by adjustment of the block j 108 forwardly or rearwardly on the depending portion of the member 44, the block being held in adjusted position by means of a clamping screw 111 and backed up by a set screw 112. Y
ln the operation of the machine, as far as concerns the present invention, it may be stated briefly that a shoe is presented to the machine while the parts ai'e in their initial positions indicated in Fig. 1. In thus .presenting the work the margin of the upper is arranged within the open gripper jaws an the end face of the last is engaged with the inner jaws 22 which determine as usual the lengthwise position ofthe shoe in the ma chine. The initial relation of the plates 66 to the jaws 22 is such that when the shoe is thus positioned the plates engage the sole with their Vouter beveled edges projecting over the feather of the sole. Upon the startupper is pulled by the grippers, the plates 66 being held by the latch 90 in their initial relation to the sole and the toe gripper being wedged forwardly during its upward movement by the action of the coi-operating wedge faces 98 and 100. The machine then comes to rest with the parts at the toe of the shoe positioned as indicated in Fig. 2. lhen the machine is again started, the side clamping devices are. moved into operative position and the Yoverwiping and fastening operationsl are performed at the toe as well as at the opposite sides of the forepart. As the wipers 54 are moved rearwardly lby the arm 52 and are closed inward laterally of the shoe in the well-known manner described in thev prior Ashton patent, they engage the margin' of the upper and press it inwardly against and over the edge of the sole. It
will be evident that as the wipers continue to move they become increasingly effective to clamp. the upper against the sole While wiping it inwardly and that in the course of the inward movement of the wipers the plates 66 become effective to assist the wipersy in their holding action on the upper by pressing against its inner surface and by bending it outwardly over the wipers and clamping it against them. At a time determined by adjustment of the block 108, but preferably when the wipers have advanced substantially or approximately to the position indicated in Fig. 4, the roll 110 becomes effective to turn the releasing member 44 slightly and thus to cause the jaws 22 to relax their hold on the upper suthciently to permit it to slip as the wipers continue their inward movement. By the time the wipers have wedged the upper far enough into the space between the feather of the sole and the wedge faces of the plates 66 to render the wipers effective to hold the upper securely against loss of tension, the margin of the upper slips out from betweeny the jaws Substantially at this timethe lugs 104 on the gripper casing become eective' to swing the latch 90 far enough to release it from the soley rest member 92, whereupon the plates 66 are withdrawn from operative position. It will be evident that the time of such withdrawing movement of the plates 60, as well as the time when the' gripper jaws begin to relax their pressure on the upper and permit it to slip, is deterd mined by adjustment of the block 108, since the operation of the latch 90 is effected by the upward movement of the gripper in response to the lessened resistance. Upon release of tlielatch 90 and the upward movement of the slide 76, the sole rest is no longer effective to prevent rearward movement of the gripper and the usual overdraw springs 114 are permitted to act to swing the gripper' rearwardly over the shoe as an additionalsafeguard against interference between the gripper and the wiper and tacker mechanism. Such rearward vmovement of the gripper is permitted by the slide 64 which, as liereinbefore explained, moves rearwardly in unison with the slide 02. As soon as the tackers have been advanced to the required position and have been operated to drive their upper fastening tacks as indicated in Fig. 6, the. parts are returned to their starting Vpositions and the shoe is released. In such return of the parts the toe gripper is moved forwardly t-o its initial position by the slide 64 and is moved downwardly by the lever 32 unt-il the latch 90 again hooks under the member 92 on the sole rest..
While the invention is herein illustrated by reference to turn shoe work, it will be understood that the invention is not limited ra inganflipperI engaging tace toi-med to' protion LipperV fastening means of the particular type illust-rated,y and that, in general, variations in. mechanical details are contemplated within the spirit and scope oi the claims.
described the invention, what clai'iiias new and d'esireto secure by Letters eiito-f .the UnitedStates is: 'lf In @Qib gin''o, an upper inwardly over a sole on a laI oli2`1n up per engaging presserdevice ared',t'ofbfelpositioiied on lthe sole and havfroiiii'the sole outwardly over the o-vernien fer witv 2. In aunachiiie ot the class described,
the @sieb aaneen @ether .Of a
of4 an upperl inwardly over the soleon a last, ofan upperengagingnpresserdevice arranged to be posia @ne te el@ @dining beveled edge p ion; formed `to project over the feather ofthe ole lin .position to bend the margin ofitli ,uplper progressively outward over Vthe wiper as 'itfv is vwiped inwardly, and controllingfine'ans automatic-ally operative in tinierelation to thewiper to withdrawsaid rser, device fromjoperative position.
' nationffwithua wiper for wiping` the y Vfan upper inwardly over the ofasole onr'ailast, of a presser devi varranged t to be positioned over Athe featlierfofthfsole in engagement with the so "inwardly ofthe feather7 saidV device upper engaging face yopposed to and spacedrom theffeatherof the sole to af restricted upper receiving opening betweenit andthe sole, means for holdl' d dviceagainst bodily inwardniovement with the'wiper as the upper is forced bvtlieiwiperinto said opening, and spring iieans' forwithdrawing said device from thesle. Y Y
if a machine ot the class described7 the combination'fwithua Wiper `for wiping the iiiarxgiiifuoff` an upper inwardly over the teatherfotasole on alast, of a presser device arranged to bel positioned on the sole Iand*havingan edge portion provided with :iny outwardly directedwedge surface, and automatic means for positioning the del rice?initiallywith its wedge surface `promachineofthe class described, theV ion with meanstor layingthe niar-v on theopposite sidentl said aiiine'ltoretniib the fastening; i @tithe-errerl .ii ai'rnaicliine ofthe class described the` the Leaver,
jecting over and facing thevteather of; sole to wedge the upper against the teatherv ot vthe soie as it is wiped inwardlyl and lfor holding saiddevice in position Vto effect suchv wedging action on'tlie upper.
5. in a machine ot the class described, the
combination with a'wiperv for wiping the margin oi. an uppeL inwardly over the` teatlier of a soleA on ay last,v of a hold-down tonengaging the sole on the bottom of the last, said hold-down having a surfacertorined to extend at anangle tothe pl the sole in position-` for lengaging them the'holddowii' against i orl the iiiper andto'ij thereafter releasing it ttor 'movem itl'out of'l operative position.
6. in a machine ofthe class describedi the combination with end embracingy wipers and meansfor operating theinito'wipe the nia gin ot an upper inwardly overa sole round the end of a'iast, of a presser device an-l ranged to be positioned on' the 'solerwith'a portion projecting over the margin ofthev arranged to be tri i )ed to withdraw sai'd'idel vice trom'tlie sole. l
7, in a machine of the class described, the
combination with end embracing wipers and means` for operating them to wipe themar-v gin otan upper inwardly over the feather4 e"of i sinv ofthe 'upper Aand bending it outwardly 'over the wiper as itis wiped inwardly, and3aiito-- matically controlledmeans for p ositioningy the inward pr e'ssuref offa., sole round the end of atlastyofa de:v
vice arrangedto 'ber positioned oir the sole. and .having'van edge portion to p project over,
the feather ofltlie solevr'ound theendfof the shoe andspacedfrom the feather of vthevsollell to provide a" restricted Vupperreceiving opening between it and the sole," and autoii' matic means tor holding said deviceoverV the 'feather of ,the soleagainst thepreSSure,
of thewipers as theupper 'is torce-d by'i'the wipers into said opening and .for thereaffter; withdrawing said device*l trom .operative position.
8. Inaniachiiie of the class described,` theA combination with end embraciiig'wipers and means for-operating the-m to wipe themar f gin o'taii upper inwardly over the feather ot sole round the end oija last of ahold-Y. down arranged to engage the sole inwardly oic its Vfeather ledge to hold the sole in Vposie tion on the bottom of the last, Vsaid holddown having an outer edge portion curved in substantial conformity tor ther curve ofr edge of the sole and providedfwithi anV outwardly directedfwedge surfaceV projecting over and facing the feather or the sole to wedge the upper against the Yleather or the sole as it is wiped inwardly and controlling means automatically operative to position said holddown tor engagement with the sole and to withdraw it from operative position.
9. ln a machine or the class described, tie combination with end-embracing wipers and means for operating them to wipe tie margin or an ripper' inwardly over thereather or' a sole round the Vend or a last, or a device arranged to be positioned on the sole and provided with an outwardly directed wedge surface projecting over and facing the ieather or the sole for engagement with the upper, said device comprising a pair or plates yieldably movable laterally or the shoe in response vto pressure ot the upper in the overwiping operation.
l0. ln a machine or the class described, the combination with end embracing wipers and means for operating them to wipe the margin or an upper in "rardly over the feather or a sole round the end ot a last, or' a presser device arranged to be positioned over the sole and having an outwardly directed edge Aportion for engagement with the margin or the upper round the.
end or the last in thev overwiping operation, said device comprising a pair or plates mount-ed toV swing' inwardly laterally or' the shoe in response to pressure orV the upper, and means tor holding said device trom bodilyv movement lengthwise or the shoe in response to such pressure.
ll. ln a machine or the class described, the combination with means for laying an upper inwardly over the margin or a sole on a last, or a presser device arranged to be positioned over the sole and to engage the margin or the upper and bend it progressively outward over the loverlaying means in the course et the overlaying operation, a device movable inyvardly over the sole for tastening the upper in overlaid position, and means automatically operative to move said presser device out of its yoperative position prior to the operation or the fastening device.
l2. ln a machine or the class described, the combination with a wiper mounted tor morementfto wipe an upper inwardly over the teathero't a sole en-a last, or a presser device arranged to be positioned on the sol-e and to engage the margin or the upper on the opposite side from the wiper for increasing the frictional hold or the wiper on the. upper as the wiper moves inwardly, a tacker movable inwardly with the wiper, and means tor moving said presser device out ot its operative position to permit the operation or the taclrer.
13. In a machine or the class described, the combination with a wiper mounted tor `mor-Jement or the wipers to withdraw movement to wipe an upper inwardly over a sole on a last, ot a presser device arranged to be positionld on the sole with an edge portion projecting outwardly for engagement with the upper to bend it outwardly over the wiper in the overwiping operation, and means automatically operative in time relation te the wiper to withdraw said device trom operative position prior to the completion or the operation or the machine on the shoe. i
la. ln a machine ot the class described, the combination with a wiper mounted for movement to .vipe an upper inwardly over the Yleather or a sole on a last, of a presser device arranged to be positioned over the sole and to engage the margin ofthe upper on the opposite side trom the wiper tor increasing the rrictional hold ot the wiper on the upper as the wiper moves inwardly, spring means for from operative position, and a latch arranged to be operated to release the device to the action or said spring means.
l5. ln a machine or the class described, the combination with a wiper mounted 'for movement to wipe an upper inwardly over the feather or a sole on a last, or a presser device arranged to be positioned over the sole and to engage the margin or the upper on the opposite side `trom the wiper for increasing the rrictional hold or the lwiper on the upper as the wiper moves inwardly, a sole rest, a latch 'tor connecting said presser de .rice te the sole rest to hold the device in operative position, spring means for withdrawing the device from operative position, and means tor operating the latchto release the device to the action or said spring means.
i6. ln a machine or the class described, the combination with end embracing wipers movable te wipe the margin or an upper inwardly over the 'feather ot' a sole on a last, and power means tor opel ting said wipers, ot presser device arranged to be positioned on the sole and to project outwardly over the feather or the sole for engagement with the margin of the upper to bend it outw'ardly over the wipers as the wipersl move inwardly, and mens automatically operative in time reist on to the inward said device trom operative position prior to the completionot the operation ot the machine on the shoe. i
l?. ln a machine or the class described. the combination with a wiper movable to wipe the margin oit an upper inwardly over the 'leather or a sole on a last, and power means Yfor operating said wiper, or presser device arranged to project outwardly over the teather ot the sole :tor engagement with the margin et the 'upper to bend it outwardly over the wiper as the wiper moves inwardly, spring means for 'withdrawing withdrawing said device be positioned over the sole and having an iii device from operative position, a latch for holding the device in operative position against the tension ork said spring means, andmeans automatically operative to move said latch andrelease the device.
18. In amachii'ie of the class described,
the combinationwith means for pulling an upper. over alast and means for wiping the margin ofthe upper inwardly over the soleo ftli'eshogof a presser' device arranged to the combinationwith a gripper for pulling anyupper at the toe of a last and end einsition in braeingwipers for wiping the margin of the Vupper inwardly over. the soie o'lith'e shee, ofy a presser device arrangec'r to be positioned on the sole and to enagothe margin ofthe upper on the opposite side from the wipers for increasing' the ifi'ictionalhold ofthe wipers on the upper, and means igor withdrawing said device fromoperative potime relation to the inoveinentof the wipers.
QOfln a machine of the class described, the combination with a gripper Yfor pulling an upper overV a last and a member. for
7 laying vthe margin of the upper inwardly over the sole ofthe shoe, off-a presser device arranged to be positioned over thefsole and to engage the upper on'the opposite side from the overlayinginember to increase thev eiiective heldv of' said I' member? on the upperk inV the -oveilaying operation, said device b'eing mounted on the gripper'iformovement-into'and outr of operative position.
2l. In ainachine of the class described, the combination with a gripper for pulling an upper over a lastV and a wiper for wip! ing the' margin of the upper inwardly` over the'fe-atlier of the sole of the shoefofa presser device arranged to project,outwardly-Qver the feather of the vsolein position toI engage the margin ofv the -upper and' bend it outwardly over the wiper as the wiper moves inwardly, said device beingv mounted on the gripper, and rmeans independent of-'the gripper for maintainingl the device in operative position,
22.*ln a machine ofthe kclass described, the combination with a gripper :tor pulling an upper 'ovena last anda wiper for wiping the margin of the upper inwardly over the feather ofthe sole ot the shoe,
of apresser device arranged to project outwardly over the feather of the sole in position to engagethe margin of. theupper and'bend it. outwardly" over the wiper as the wiper moves inward ly, said devicev b e1 ing vmounted on the gripper, a-solerest',l and means for connecting said d'evicetol the sole rest to maintain the ldevice inoperative position during .thev upper pulling movefv 7o ment oi" the gripper. y
In a machine of t-lie class deseribedgthe combination with a gripper'fQrpuiling an upper over a last andjawiper for.wipingv the margin ofthe upper inwardly*,overjt'he 75 tea-ther of the soleofitheslioe, of apresser device. arranged to project' outwardly over`V v the 'feather ofthe soleinposition tdengage the marginor,l the upper and: bendjitffoutv \v\.fardly over the wiper asth'e wiper moves-8o inwardly, said device beingmoiinted on :thee gripper, a sole rest, a latcliior connecting; Said deviceto the solerest tov maintain thev device in operativeposition duringl'the'upf.- per pulling movenieiit'of the gripper, spring .85 means 'for withdrawing the-d evicefrom 0perative position, andinean's for operatinqthe latch to release the device to tle action of said spring means. .o
24.111 a mach-ine offgthe class described, 9U the combination with a gripper forU pulling anupper over a last,V oia hold-down mount."- ed on the gripper for engagement with the sole of the shoe, asole rest, a.. latch for connecting the vho lc`l 'down` to the sole 95 rest to maintain.v the hold-'down in op-Y erative position during the upper p iill ing operation, andmeans for operatingsaid latch vrsubsequently torelease the'fh'oldf'down,
25. In a machine off'the class1described, 10U the combination with', a gripper for pu l lii`i 0' ,.v an upper over ajlast, offa hold-[down mounti ed 011 the.. sriiarelfer engagement, with the sole of the shoe, asole resta springfor withdrawing the, hol, d wni V i"frogmz operative 105 position, aiatcligfor lockingthehol ldown t' tbl-S016 fest against. di tensin... Offsad Spring; and .e devic'efmevable wifhJ-thesfp* per for Opelaatsadflateh to release. the f hold-doWn,l 11u,V
26- YIn a machine. Ofth'e dass ,.describedil the combination with a ,gripper for pullin'gjan upper over a las t,of a hold-downior engaging the solel off the sli "c e, l said" holddowi'i being mountedl onthe gripper, 11@
for movementout of operative po sitio n a ,spring for withdi'i awing the holddown from operative positioma sole rest., a 'latoh carried bythe hold-down. forjlocking it,l to
the solefre'st, and a lug onthe gripper for-12eL4 Y 'engagingY said latch` to i release the hold?" down `from the sole.rest.
27.111 a machine, of .the class describ'ed,' the combination with a .toe gripper,v oa i slide on said gripper,a hold-down forfenr 125, gaging the end portionof :the sole of' the shoe, said hold-down .being pivotally moun`t, ed on said slide to permit `tli e gripper to move diagonally forward 'inthe ripper-.puil-v Aingvoperation without moving,tli `e hol d3- *13er down, a sole rest, a latch tor connecti n@ the hold-down to the sole rest to pr 'ent movement ot the hold-down away trom the plane of the sole while the gripper pulls the upper, means for ope-rating said latch. to release the hold-down from the sole rest, and spring means for returning the holddown into a normal relation to the gripper when it is thus released.
28. In a machine ot the class described, the combination with means tor working an upper over a last, ot a sole rest, a holddown mounted independently ot the sol rest, a latch tor connecting the hold-down to the sole rest to prevent movement ot the hold-down away trom the plane ot the sole,
spring means for withdrawing the hold` down Jfrom operative position, and means for operating said latch to release the hold-y down to the action of said spring means.
29, In a machine ot the class described, the combination with a gripper comprising jaws relatively movable to grip or to release an upper, and a lever for operating the gripper to pull the upper, of a manually operative device on said lever for etiecting a relative Aopening movement of the gripper jaws, Aand power operated means movable into engagement with said device to open the jaws in the Course ot the cycle of operations ot the machine.
30. In a machine ot the class described, the combination with an upper pulling gripper comprising jaws relatively movable to grip or to release an upper, and means for laying the margin of the upper over the sole of the shoe, ot gripper opening means comprising a member movable to eitect a relative opening movement of said jaws proportional to the extent of movement ot the member, and a power operated member tor imparting movement to said iirst member to effect a gradual opening of the jaws in the course ot' the overlaying operation.
31. In a machine of the class described, the combination with a gripper comprising relatively movable jaws and a gripper bar and a casing relatively movable to close or to open said jaws, and means movable to lay the margin of the upper over the soie' ot' the shoe, of a member connected to said casing for moving it to open the jaws progressively torelease the upper after the upper has been pulled, and a power operated member mounted tor movement with. said overlaying means to operate said first member.
32. In a machine of the class described, the combination with an upper pulling gripper comprising jaws relatively movable to grip or to release an upper, and means movable to lay the margin ot' the upper inwardly over the sole of the shoe, of.
means for ope-ning thegripper to release the upper including a member movable to effect a relative opening movement ot said jaws proportional to the extent oi' movement of the member, and a power operated member carried by the overlaying means and movable into engagement with said iirst member to operate it, one of said members comprising a part adjustable to vary the time ot opening of the jaws.
32%,. ln a machine ot the class described. the combination with an upper pulling gripper comprising jaws relatively movable to grip or to release an upper, of means tor opening the gripper to release the upper including a member movable to etl'ect a relative opening movement ot said jaws proportional to the extent of movement of the member, a member mounted tor movement into engagement with said first member to operate it, and means for ell'ecting an additional relative movement of said members after their engagement with each other in suc-h a direction as partially to counteract the eitect ot said operating member and retard the opening of the jaws.
34. ln a machine ot the class described` the combination with an upper pulling gripper comprising jaws relatively movable to grip or to release an upper, ot means for opening the gripper to release the upper including a member movable relatively to the gripper to etl'ect a relative opening movement ot said jaws proportional to the extent ot movement of the member and movablel also bodily with the gripper in the direction ot the pull as the jaws relaX their hold on the upper, and a member mounted tor movement in a direction transverse to thc direction ot the` pull to operate said first member, one of said members having a contact tace engaged by the other and inclined to tne direction ot movement ot the operating member to cause the opening ot ther jaws to be ettected gradually by the action ot the operating member as the gripper is moved when the gripping pressure is relaxed.
35. ln a machine of the class described, the combinationv with an upper pulling gripper comprising jaws relatively movable to grip or to release an upper, and spring means tor moving the gripper to pull the upper and tor moving it farther as it releases the upper, of gripper opening means including a member movable relatively to the gripper `to effect a relative opening movement ot said jaws proportional to the extent oit movement ot the member and movable also bodily with the grip-per as the latter is moved by said spring means, and a member movable in a direction transverse to the direction ot the pull ot the gripper to operate said iirst member, one of said members having a contact face engaged by the other and inclined to the direction of movement ot the operating member tofrender :gradual the gripper opening feliect dl said operating member and cause the gripper to slipfon the upper whilfestillfholding it Iwith substantialpressure asi-it is 'retracted'by its spring. Y
ln 'a machine ol *the class '.des'cribed, the combination with fa Vgripper comprising jaws relatively movable f'to grip "or 'to release fan lupper, a lever for moving said :gripper to pull 'the lupper V'and fa springV through `which movement is imparted to said lever Yto pull the upper and to move 4tlrengri'pper yfarther 'as it releases thefupper, -orgrippenopening means including a mem- 'ber mounted'on lsaid 'leverfand movable to 'ele'ct a relative openingmovement ofsaid 1jawsproportional to the-'extent of movement oit the Lmember, and fa member 'mounted `for movement vin a Ydirection transverse to `the direction :of the pull of Ithe' gripper `to opera-te 'si `vd lfirst member, on'eof l'said -leeis having' Aa Contact facci-engaged by `the other 1 and f inclined lto the direction'ol f' movement oi' lthe operati-ng` member to render gradual thegripper opening -ellect ofsaid o' eernting member I'as tlregripper'is retract- 'ed by itsspring.
37.` ln a machine of the class described, vtheV combination with a gripper comprising 3 vjaws relatively movable to :grip or to `relea-se "an m'pper, 'a lever Ifor moving said gripper to pull `the 'upper and Ia spring through which lmovement is imparted to said lever to pull rthe .upper and Yto move the gripperfarther as'it releases thfeupper, of gripperopening-means including inemher mount-eden said lever and movable to ellecta relative opening movementuof said jews proportionalfto they extent of movement o'tthe member, and `a membervmounted vfor ymovenfient -in a-=direction transverse'to .the direction ofthe pull.` ofthe gripper to oper- -ate saidrst'niember, orient-said members comprising la part having-a contact tace V'enigagedby the other'end inclined -tothe direction of the movement of said operating imember, said gpat being adjustable to vary the ti me of opening'of `t-he gripper.
Br-ln a V-i'najchine of the cla-ss described, the .combination with fia gripper -comprisin jaws relatively movable to grip orto `release eaniupper, -and a lever v.for `.operating` :said
'pperto pull theuppen of grip-per openlever movable I to :elfect la relative epeningfnfiovement oiifsaid jaws-:proportional to the extent of move-ment of the -memben isaidfmember: having ai centaict .face inclined `'to 'the Lldirectien 'of Lthe pull f of the fgripper,
vrand k)a lpower operated .memberi mounted =for ingmeans comprising -afinembermountedl on 1 .'r'novemepntiin adirection obliquewtoy the plane lofisaidfa to f operatelthe first 'member f by engagement .with :said face.
l 39. @ln amachineiof the class described, -the combination with vafkgrpper for 5 pulling 'ein upper over a ilast and means me able tinwardly to lay the margin of the `upper over ythe bottom of the 'lastyoi a device Vfor 'restraining the gripper "from overdranvi'np- Vnioven'ient 4as the overlaying vineens moves inwardly, and means constructed band an ranged to cause'the gripper to relax itsfhold `on the upper and permit the upper to :slip as the overlaying y:means moves inwardly while maintaining sufficient gripping*pres-V f `maintain said pressure suibstfantiallvv 'con-f stunt vuntil vthe upper "has f'been pulled from th'egripper by the action ofthe*overlaying member. Y
4&1. ln a mechine of the class di ribed, the-combination with toeigripper i-cr pulling'an upper overai last and mid-wilma@ ing wipers movableto wipe the mnrginoi the upper into lastedp'osition round the toe, oil", gripper opening means 'automatically operati-cc in the course of the movement ol :said wipersito cause the gripperto relax'is lhold 'on the upper :and yApern'iit the @upper torslip f inf the V,. =ipper while ii'iaintainii'igg sut'- licient :gripping` .pressure on 'the upper 'to prcventfsubstantial loss ol' the 'pi'llling-over tension.
4Q. @In 'a machine ofthefclass describe; the 'coinbinationwith a'gripper'for pulling an 'upper overa. list, and Via n'f'ip'er*movable to wipcrthe margin of't'the upper'inwardllrY ovcnthe bottom et the last, oi'gripper 'openingr means f 'comprisingaa men'lber associated lwithtlre grippe )and another member mov- 'JIS- vent Vsubstan'tial `loss ofi. the pullingovefr l tension. Y
43. ln a machine of the class described,
the voverlanving member fm'ove K fthe combination with an' fnpper 'pullinggripper comprising` f aws relativel` movable to .,grip or= tolreleas'e Y an upper, v'and a "-wip'er movable to wipe 4.the :margin of 'the upper inwardly over the sole of the shoe, of grip- .per opening means Vincluding' `a-lmember A movable relatively 'tof the gripper vto v e-lect vrafrelative o-p'en'iffng movementfof#said jaws proportional tothe extent of movement ot the member and movable also bodily with the gripper in the direction ot' the pull the jaws relax Vtheir hold on the upper, and a men'iber mounted forv movement with the wiper in a direction transverse to the direction oi the pull to operate said first member, one otl said members having a contact tace engaged by the other and inclined to the direction of movement of the operating member to render gradual the effect ot said operating member and cause the gripper to slip on the upper while still holding it with substantial pressure.
44. In a machine of the class described` the combination with a toe gripper comprising jaws relatively movable to grip or to release an upper and end embracing wipers movable 'to wipe the margin of the upper into lasted position round the toe, of gripper opening means comprising a member movable bodily with the gripper in the direction oi" the pull and movable also relatively to the gripper to effect a relative opening movement of the jaws proportional to the extent of movement of the m-ember, and an operating member movable with the wipers in a direction transverse to the direction or the pull `to operate said lirst member, said members having -their contact faces disposed in such relation to the direction of the pull as to cause the jaws to slip on the upper without entirely releasing it as the wipers move inwardly.
45. In a machine of the class described, a gripper for pulling an upper over a last, a wiper movable to wipe the margin of the upper inwardly over the sole of the shoe, a presser device for engaging the upper on the opposite side from the wiper to increase the frictio-nal hold of the wiper on the upper. and a gripper opening device automatically operative lto cause the gripper to relax its hold on the upper and permit the upper to slipl without entirely releasing it as the. wiper'moves inwardly.
46. In a machine of the class described, a gripper tor pulling an upper over a. last, a wiper movable to wipe the margin of the upper inwardly over the sole of the shoe, a presser device arranged to be positioned on the sole and to bend the margin of the upper progressively outward o-ver the wiper the wiper moves inwardly, gripper opening means'comprising a member associated with the gripper and movable to effect a gradual opening of the gripper jaws,` and a member movable with the wiper tov operate said iirst member, said members being so constructed and arranged as to cause the j aws to relax their' hold on the upper and permit it to slip while still maintaining substantial holding pressure upon it as the wiper moves inwardly..V
47. In a machine of the class described,
a. gripper tor pulling an upper over a last, a wipe-r for wiping the margin of Ithe ripper inwardly over the sole of the shoe, a presser device for engaging the margin of the upper on the opposite side from the wiper to increase the itrictional hold of the wiper on the upper, a tacker movable inwardly with the wiper for fastening the upper, a gripper opening device automatically operative as the wiper moves inwardly to causethe jaws to relax their hold on the upper and permit it to slip while still maintaining a. substantial hold on the upper, and means automatically operative to withdraw said presser device from operative position prior to the racking operation.
48. In a machine of the class described, a gripper for pulling an upper over a last, a wiper for wiping the margin of the upper inwardly over the sole of the shoe, a presser device mounted on the gripper for enga-gement withv the margin of the upper on the opposite side from the wiper to increase the trictional hold of the wiper on the upper, a sole rest, a latch connecting said presser device to the sole rest, a taclrer movableinwardly with the wiper, means automatically operative in the inward movement of the wiper to cause the gripper to relax its hold on the upper and permit it to slip, and a device movable with the gripper as it slips on the upper to operate said latch and release the presser device from the sole rest.
49. In a machine of the class described, the combination with a gripper mounted for movement to pull4 an upper over a last7 of a hold-down for engaging the sole of the shoe, and means for producing a wedging action between said hold-down and gripper to force the` gripper outwardly -from the edge of the shoe bottom in its upper pulling movement.
In a machine ot the class described, the combination with a gripper mounted for movement to pull an upper over a last, of a solerest, and a device positioned by said sole rest for wedging the gripper laterally outward from the edge of the shoe bottom in its upper pulling movementb 5l= VIn a machine of the class described., the combination with a gripper mounted for movement to' pull an upper over a last, cfa sole rest, and a member arranged to be held by the sole rest from movement inwardly over the sole,- said member and the gripper having co-operating portions constructed to wedge the gripper laterally outward from the edge of the shoe bottom in its upper pulling` movement.
52. In a machine of the class described, the combination with a gripper mounted for movement to pull an upper over the toe end of a last, of a sole rest,iand a hold-'down arranged to enga-ge the sole in trontot' the Vtoibe positioned onthe sol-e of the shoe to- --eirgageithe m-'argiinofcthe upper and by the iinwardmovement of vthe-wiper to bend said Y :margin fpro-gress'ively outward over the wiper `in #the overwiping operation, and mechanism automaticallyeoperative to with.- ;drawf'said member lfrom Voperative position mrhilexthe wiper issapplyingxholding pres-V sure to thex margin of the upper.
lnfiafmachine :of -the class described, etheicombina-tion withfasolerest, and a wiper y:for wip in g; the fm argin of. an upper inw ardly meiwthe sole, of a 'member arranged relaltively tolsa'id sole rest vfor engagement with ztiiemarginal portion of the -sole of iashoe positioned bylsaidsole rest` and constructed tto .provide a restricted Vopening .between it and the feather of the sole to receive the upperforced inwardly by the wiper, and mechanism rautomatically operative to with- .'dnaw Ysaidinember from operative position "after-the Iwiper/has forced the margin of the'up er-intosaid opening.
55. n a machine of the class described, the combination :with -a wiper support and a wiperfor wiping the margin of'an upper :inwardly 'over the bottom of a last, of a member arranged to-engage the margin of tlrelupper -andi'to press said margin against the wiper as the ywiper .moves inwardly,
wand. mechanism arranged =t-o be rendered foperative fby `the inward movement of the' wiper support to withdraw said member =from operative fposition.
56. :In a machine `of the class described, the combination lwith means for .pulling an -upper over a last and for holding thenpper Eunder tension, of means VIfor wiping the margin offthe upper inwardly over the bottom of the llast'while theaupp-erlis retained under controliof :said pulling means, amem- 1ber arranged to `engagethe margin of the @upper andrpress-- it against said wiping means inY the overwipmg:operation,v and mechanism automatically loperative to wvithdraw said member *from operativer position Vafter the wiping means has Varrived lin position to ,hold `Ytheupper.
- P57. In anmachine of the class described, the combination with a .gripperfforpulling :.aniupperfover a llast, and awiper forwip- Iing-tlresmargin"of the upper inwardly 'over ithe bottom "of the last, 'of -mechanism auto- Amatically operativeI in Athe overwipingioper- .nation torrelaar thea'pressureofzthe gripper on the upper and=permit the upperto slip while still maintaining control ofthe upper bythe gripper, and an abutment member-arranged to eo-operate with thewiper to engagetftlie upper with increasing pressureas Vthe upper slips inthe gripper. Y 5 K 5S. In a machine of. theclass described, the combination with agripper for pulling an upper over a last, and a wiper for wiping irwardly over the bottom of the lastaxportion of the upper pulled by saidgrippenof a member arranged to engageithe margin of the upperand press; it against the wiper in the inward movement of the wiper, .and i mechanism :automatically operative .to -Avithdraw said member from 'operative .position after the wiper has-arrived l'in position vrto holdrthe upper against substantial loss of the pulling over tension.
59. In a machine "of `the class 'described, the combinationwith a gripperffor :pulling anupper over af last, fand a wiperfor -wiping the margin of the upper inwardly over k.the bottom of the last, of azmember. for cengaging the margin of the upper and .pressing it against the wiper as the wiper Amoves inwardly, and meansiautomatically` operative to relax the pressure offthe gripperion the margin of the upper inthe overwiping operation while stilll maintaining control ofV said margin bythe gripper and'to Withdraw said member from operative position after the wiper has arrived-in pcsition'to hold the `upper against substantial loss of thegpullingover tension. Y l Y ,Y
60. In a machine ofthe class` described, the combination with a gripper for= pulling an upper over a. last, and a wiper forwiping the margin ofthe upper inwardly over the bottom of the'last, of a memberfor engaging the margin of the upper yand Lpressing'it loc against the wiperas the wiper moves inwardly, mechanism automatically operative in the inward movement of the wiperto revlaX the pressuref of the :gripper onthe margin of the upper and,permitthegripper to slip on'said margin while it still maintains control of the upper, and mechanism controlled by said gripper a-szitslips on'the upper for withdrawing said :member `from operative position.v
6l. In avma'chine offthe class described, the 'combination with a gripper andmeans for operating itto pull an upper over-1a last, and means for laying themarginof the up- Aper inwardly over the bottom ofthe last, of mechanism lautomatica-llyY operative in the overlaying operation to relax the pressure 'of the gripper Von .the upper land permitthe Lipper to slip-in thegripper whilemaintainingsuiiicient gripping pressure'upon it 'to prevent substantialflossxof the pulling-over tension. v
62. In a machine of the class described, `the "IcoinbinationI with a gripper :for pulling lll an upper over a last, and means movable to lay the margin of the upper over the bottom of the last, or mechanism arranged to be operated by the movement of said overlaying means to relax the pressure of the gripper on the upper and permit the upper to slip while retaining control of the upper by the gripping pressure as the overlaying means moves inwardly.
63. In a machine of the class described, the combination with means for working an upper over a last, o a sole rest, a holddown supported independently of the sole rest for engagement with the marginal portion or the sole, a connection between said holddown and the sole rest for maintaining the holddown in. position to engage the sole, and means for withdrawing the holddown trom operative position.
64. In a machine of the class described, the combination with means for laying the margin of an upper over the bottom ont a last, of a sole rest, a holddown mounted in dependently of the sole rest for engagement with the marginal portion or the sole, a connection between said holddown and the sole rest for maintaining the holddown in operative position, and mechanism arranged to be controlled by the movement of said overlaying means for disconnecting the holddown from the sole rest.
65. In a machine of the class described, the combination with a gripper for pulling an upper over a last, or a holddown mounted on said gripper for engagement with the marginal portion of the sole or' the shoe, means movable to lay the margin of the upper inwardly over the sole, and mechanism automatically operative in the inward movement of said overlaying means to cause the holddown to withdraw from the sole.
G6. In a machine of the class described, the combination with a gripper 'for pulling an upper over a last, of a holddown mounted on the gripper for engagement with the marginal portion of the sole of the shoe,`a sole rest, a connection between said holddown and the sole rest for maintaining the holddown in operative position, means movable to lay the margin of the upper inwardly ove the sole, and mechanism controlled by the inward movement of said overlaying means for disconnecting the holddown from the sole rest.
67. In a machine of the class described, the combination with a gripper for pulling an upper over a last, of a holddown mounted on said gripper tor engagement with the marginal portion oit the sole of the shoe, means for retaining the holddown in operative position independently of the gripper, means for imparting a withdrawing movement to the gripper after the upper pulling operation, and mechanism controlled by said withdrawing movement of the gripper or releasing the holddown from said retaining means.
G8. In a machine of the class described, the combination with a gripper Jor pulling an upper over a last, of a holddown member i'or engaging the sole of the shoe, means for relaxing the pressure of the gripper on the upper and tor imparting to the gripper a withdrawing movement after the upper has been pulled, and mechanism controlled by said withdrawing movement of the gripper for withdrawing said holddown member from operative position.
In testimony whereof I have signed my name to this speciiication.
WILLIAM C. STEWART.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US352324A US1512047A (en) | 1920-01-19 | 1920-01-19 | Machine for working uppers over lasts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US352324A US1512047A (en) | 1920-01-19 | 1920-01-19 | Machine for working uppers over lasts |
Publications (1)
Publication Number | Publication Date |
---|---|
US1512047A true US1512047A (en) | 1924-10-21 |
Family
ID=23384670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US352324A Expired - Lifetime US1512047A (en) | 1920-01-19 | 1920-01-19 | Machine for working uppers over lasts |
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US (1) | US1512047A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2688146A (en) * | 1951-02-07 | 1954-09-07 | United Shoe Machinery Corp | Machine for shaping uppers over lasts |
US2756445A (en) * | 1952-02-26 | 1956-07-31 | United Shoe Machinery Corp | Machines for shaping toe portions of stitchdown shoes |
-
1920
- 1920-01-19 US US352324A patent/US1512047A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2688146A (en) * | 1951-02-07 | 1954-09-07 | United Shoe Machinery Corp | Machine for shaping uppers over lasts |
US2756445A (en) * | 1952-02-26 | 1956-07-31 | United Shoe Machinery Corp | Machines for shaping toe portions of stitchdown shoes |
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