US1979420A - Machine for shaping uppers over lasts - Google Patents

Machine for shaping uppers over lasts Download PDF

Info

Publication number
US1979420A
US1979420A US702038A US70203833A US1979420A US 1979420 A US1979420 A US 1979420A US 702038 A US702038 A US 702038A US 70203833 A US70203833 A US 70203833A US 1979420 A US1979420 A US 1979420A
Authority
US
United States
Prior art keywords
last
over
sole
wipers
forepart
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US702038A
Inventor
Swales George Prior
Roberts Wiliam Thom Buckingham
Lane Harold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United Shoe Machinery Corp
Original Assignee
United Shoe Machinery Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Shoe Machinery Corp filed Critical United Shoe Machinery Corp
Application granted granted Critical
Publication of US1979420A publication Critical patent/US1979420A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/16Lasting machines with lasting pincers and toe- or heel-embracing wipers
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/12Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
    • A43D21/125Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last with a plurality of pincers
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/18Lasting machines with lasting pincers and straight-acting wipers, also for forming the shank portions of shoes

Definitions

  • This invention relates'to machines for shaping uppers over lasts, and more particularly to machines havingmeans for pulling the upper over the last and for laying its marginal portion in- 5. wardly over an insole or sole onthe last and for fastening it in tensioned condition.
  • the invention is herein illustrated as applied to a machine, of the same general type as disclosed in Letters Patent No. 1,510,851, granted on October 7, 1924, upon an application of Arthur E. Jerram and Joseph Gouldbourn, but it is to be understood that it is also applicable to machines of other types.
  • Machines of the type illustrated in the abovementioned Letters Patent are provided with a plurality of grippers for pulling the upper over a last at the end of the toe and the sides of the forepart, and are provided also with overlaying andfastening devices which are moved inwardly into positions for inserting upper-holding fas- ,tening's at the end of the toe and the sides of the forepart after the pulling of the upper, these devices including wipers which wipe the marginal portion of the upper inwardly over the shoe bottom preparatory to the fastening-inserting operation.
  • Such machines often include, for example, five upper-pulling grippers, one at the end of the toe and two at each side of the forepart, and means for driving seven fastenings, one at the end of the toe and three at each side of the forepart, to fasten the upper in pulled-over position.
  • the present invention provides an improved construction such that a machine having, for example, means for driving seven upper-holding fastenings as above described, may drive the reamost .side fastenings, i.
  • the construction shown comprises, in addition to members movable as heretofore with the side fastening devices to lay or wipe the marginal portion of the upper inwardly over the sole at the sides of the forepart, other overlaying members so arranged and operated asito engage the upper in locations farther from the end of the toe than the above-mentioned members and. to lay the upper over the sole in such 55; manner as to prevent the crowding of surplus upper material into the waist portion of the shoe.
  • these additional members engagethe upper at the ball portion of the shoe in locations slightly farther from the end of the toe than the locations of the rearmostside fastenings, and are moved widthwise of the shoe with components of movement also toward'the toe end of the shoe in angular relation to the directions of movement of the side overlaying members that operate nearer the end of the toe, the latter being so constructed and arranged as to engage the upper only at the toe portion at substantial distances'from the additional mem-- bers.
  • the additional overlaying memhere are moved inwardly into engagement with the upper whilethe upper is still held by the grippers and before the overlaying members that move with the fastening devices and operate at the sides of the toe engage the upper, the additional members being controlled by springs which impel them inwardly over. the shoe bottom immediately uponthe release of the upper by the grippers.
  • the so additional overlaying members are carried by side clamping devices which in machines of the ilrespectively to these devices and members.
  • Fig. 1 is a view in left-hand side elevation of aportion of a machine in which the invention is embodied;
  • Fig. 2 shows a portion of the machine in front elevation, with parts broken away;
  • Fig. 3 is a view, from the rear of the machine, of certain parts shown at the right-hand side of .Fig. 2;
  • Fig. 4 shows a portion of the machine as viewed in the direction of the arrow on Fig. l; I
  • Fig. 5 shows a shoein section and illustrates the relation of certain parts of the machine to the shoe after the clamping of the upper to the last but before its release by the grippers;
  • Fig. 6 is a view in the direction of the arrow on Fig. 1, illustrating the positions of certain parts at the same stage in the cycle of the machine as represented by Fig. 5; I
  • Fig. 7 is a view similar to Fig. 5, illustrating the positions of the parts at the conclusion of the fastening-inserting operation.
  • Fig. 8 is a view similar to Fig. 6, illustrating the positions of the parts at the same stage in the cycle as represented by Fig. '7.
  • the machine herein shown has five grippers for pulling the upper over the forepart of. the last and means for driving seven tacks through the upper and the sole at the forepart of the last bottom to fasten the upper in pulled-over position.
  • the last with an upper and a sole assembled thereon is supported against the pull of the grippers by a work support or sole rest 1 (Figs. 2 and 4) on which the work is positioned by the operator with the last bottom downward and its toe end pointing upwardly toward the rear of the machine.
  • a heel rest 3 Near the beginning of the operation of the machine a heel rest 3 (Fig. 1) is moved lengthwise of the last into engagement with the heel end of the shoe to assist in maintaining the work in proper position.
  • two grippers 7 are arranged to operate on the upper respectively at the opposite sides of the last in locations at or near the ends of the toe tip line if the upper isprovided with a toe tip.
  • the other two grippers 9 are arranged to operate on the upper respectively at the opposite sides of-the last in locations about an inch nearer the heel end of the upper, for example, than the grippers '7 and at approximately the same distance from the toe end of the last as the ball line of the shoe.
  • the grippers which are normally open to receive the upper materials when the machine is at rest, are moved in downwardly and rearwardly inclined directions relatively to the inclined last so as to pull the upper in directions substantially perpendicular to the plane of the last bottom, these movements being effected by camoperated levers which act yieldingly on the grippers through springs adjustablein strength.
  • the five grippers are also arranged to move inwardly toward each other after they have pulled the upper heightwise of the last, to draw the margin of the upper inwardly across the edge of the sole.
  • the machine is further equipped with a pair of upper-clamping arms 11 (Figs. 1 and 2) arranged to swing inwardly toward each other about horizontal pivots 13 (Fig.
  • each of these arms carries, as usual in machines of the illustrated type, a curved self adjusting rubber pad 15 which serves to clamp the upper against the side of the last in the region of the tip line and fairly close to the bottom of the last, and a self-adjusting rubber pad 17 which serves to clamp the upper against the top face of the forepart of the last also in the region of the tip line.
  • These pads clamp the upper against the last before the grippers release the upper, and by their pressure prevent the upper from recovering its original slackened condition when the grippers release it preparatory to the tack-driving operation.
  • the machine herein shown is also provided, like prior machines, with three tacker arms having at their upper ends tack holders from which tacks are driven upwardly into the shoe bottom to fasten the upper in pulled-over position after the upper has been released by the grippers.
  • the tacks. are fed to the tack holders by means of substantially the same character as disclosed in Letters Patent No. 1,921,099, granted on August 8, 1933 upon an application of W. T. B. Roberts,
  • this means including tubes 19 which lead from tack-supplying means 21 (Fig. 1).
  • tacker arms shown at 23 in Fig. 1, is mounted at the rear of the toe gripper 5 and is provided with means for driving a single tack at the toe end of the shoe.
  • the arm 23 is mounted to swing forwardly about a horizontal axis 25 and carries a yieldable wiper 27 which, as the arm is swung forwardly, engages the extreme toe end of the upper near the edge of the sole and wipes the marginal portion of the upper inwardly over the sole before the tack is driven.
  • a soft rubber block 29 carried by the arm 23 serves to limit the forward movement of the arm by contact with the toe end or the shoe.
  • the other two tacker arms are mounted one at each side of the machine in locations farther ou.twardly from the Work support than the side grippers, and each of these tacker arms carries at its upper end three tack holders arranged in a series lengthwise of the shoe and provided with tack pockets 32 (Figs. 4, 6 and 8) from which tacks are driven upwardly into the shoe bottom to fasten the upper at the side of the forepart.
  • each of the clamping arms 11 carries at its upper end and at the side thereof .L
  • a pin 35 is arranged to extend lengthwise of the shoe through the car 33 and into the arm 11 and has freely pivoted on it a carrier 37 for an overlaying member or wiper 39.
  • the wiper 39 comprises a metal blade which may be, for example, about half an inch in width at its extreme inner end and about an eighth of an inch in thickness, and it projects 1 b ill) normally inward toward the location of the shoe somewhat farther than theupper-clamping pad 15, as indicated in Fig. 3.
  • a block 41 which is mounted in .a guideway formedin the lower face of the carrier 37, this guideway extending inwardly toward the side of the shoe andsomewhat. also toward the toe end of the shoe;
  • the outer end. of the blockel which projects beyond the outer end of the carrier 37,is turned upwardly and has secured in it a rod 43 which extends inwardly into a bore formed in the carrier-37. above and parallel to "the above-mentioned guideway inthe carrier. -A light spring. 45 encircling the rod43 bears atits inner end on the outer.
  • the wiper is provided with an upwardly extending ear 47 (Figs. 1, 2 and 3) in engagementwith the inner end of a plunger 49 which is housed in a tubular guide 51 extending inwardly toward the work support and. secured to an arm 53.
  • This arm is generally similar in shape to the clamping arm 11 and is mounted on the same pivot 13 as thetclamping arm.
  • a strong spring (Fig. 2) is housed in the guide 51 behind the plunger 49 and serves to force.
  • the plunger 49 and the spring 55 are adjustable along the guideway in the member 51 to vary the initial positionof the wiper 39 by rotationof a sleeve 5'? which is threaded in the member 51.
  • This sleeve serves as an abutment for the spring 55 and has therein abore through which extends a rod 58 that projects from the plunger 49. 1 i
  • the arin53 at each side of the. machine has formed .on its lower end an inwardly projecting gear sector 59 (Fig. 2) which meshes with gear teeth formed on a vertically movable rack bar 61.
  • This rack bar is operatedpositively by a face cam 63 (Fig. 1) on the machine cam shaft 65 and by downward movement imparts inward swinging movements to the arms 53; their outward movements being effected by aspring (not shown).
  • Each of the arms 53 has at its upper end an outwardly extending arm 67 which is curved about an axis concentric with the pivot 13 about which the arm 53 and thev clamping arm 11 are swung,- and in the outer end of the arm 67 there is secured 'a pin 69 having a rounded outer end extending into a guideway 71 formed the ad jacent clamping arm 11, this guideway being curved similarly tothe arm 67.
  • a strong spring 73 located in the guideway 71 abuts at one end against: the pin 69 and thus serves'aspart of a yielding coupling between the. arm '53 and the clamping arm 11, so that inward swinging movement is imparted yieldingly to the arm 11 by correspondingmovement of the arm 53.
  • the wipers 39 carried by the clamping arms 11 project inwardly somewhat beyond therubber pads 15, as hereinbeforedescribed, the inner ends of these wipers engage and press inwardly against the marginal portion of. the tensioned upper'in locations just below the level of the sole before the pads 15 and 17 .onthe clamping arms 11 arrive in upper-clamping positions.
  • the wipers 39 are so positioned on the clamping arms that their inner ends engage the upper initially .in locations slightly nearer the heel end of the shoe than the portions of the upper that are engaged by the side grippers 9. While the grippers continue to hold the upper under tension the resistance of the upper preventsthe wipers 39 from being moved to. any substantial extent inwardly over the shoe bottom, as will be evident by reference to Fig.
  • the tacker arms 23 and 31 are swung automatically inward toward positions for driving the upperholding tacl s upwardly into the shoe bottom. It will be understood thatas the tacker arms are swung inwardly in a machine of the illustrated type they are carried into engagement with memhere on the grippers which in response to such engagement cause the grippers to release the upper.
  • each wiper 39 serves to press the upper firmly against the bottom face of the sole.
  • an upwardly extending spring- “pressed plunger 75 (Fig. 1) which is mounted in the upper end of the clamping arm 11.
  • This plunger bears at its lower end on the carrier 37 in a location farther from the work support than the pivot pin 35 about which this carrier swings,
  • the plunger 75 is controlled by a spring 76 which bears at its upper end against a member 77 movable in the bore in which the plunger is mounted, and this member may be forced downwardly in the bore to increase the compression of the spring by a rotary hand lever device '79 having an ec'ct-intric portion bearing against the upper end of the member.
  • a rotary hand lever device '79 having an ec'ct-intric portion bearing against the upper end of the member.
  • a hooked member 81 carried by each clamping arm 1-0 11 has its lower end portion extending beneath a block on the carrier 37, as shown in Fig. 3, so as to limit movement of the carrier under the influence of the plunger 75.
  • the members 81 are adjustable :heightwise of the shoe so as to adjust the carriers 37 about their pivot pins 35.
  • Such adjustment of each member 81 is effected by a screw 87- which passes through a forwardly turned portion at the upper end of the member 81 and bears against the upper end of the clamping arm 11.
  • a slot and bolt connection 89 between the member and the clamping arm.
  • the wipers 39 engage the upper in locations slightly nearer the heel end of the shoe than the grippers 9, they tend, when they first engage the upper held by these grippers, to defleet portions of the upper adjacent to the grippers lengthwise of the shoe toward its toe end, this tendency being increased by reason of the fact that the wipers as they move inwardly along the guideways in their carriers 37 have each a component of movement toward the toe end of the shoe.
  • the wipers When the wipers are moved inwardly over the shoe bottom immediately upon the release or' the upper by the grippers, they have a further tendency to crowd the marginal portion of the upper engaged thereby toward the toe end of the shoe, after which they hold it clamped upon the sole while the tacks are driven.
  • Each of the side tacker arms 31 also carries means for laying or wiping the marginal portion of the 'upper inwardly over the sole at the forepart, this means in the construction shown consisting of a wiper 85 having a single upper-engaging finger which acts in the inward movement of the tacker arm, after the grippers release the upper, to wipe inwardly over the sole a portion of the margin of the upper located slightly nearer the end of the toe than the corresponding side gripper '7 and nearer the end of the toe than the location of the foremost side fastening.
  • the wipers 39 are moved into engagement with "the upper earlier than the wipers 85 and are forced inwardly over the shoe bottom slightly in advance of the action of the wipers 85 on the upper when the grippers release the upper, and since also the wipers 39 are spaced substantial s, distances from the wipers 85, there is no danger of urging any excess of upper materials into the waist portion of the shoe and thereby rendering difiicult the later side-lasting operation, notwithstanding the fact that the wipers 85 have components of movement lengthwise of the shoe toward its heel end due to the directions of movement of the arms 31. When the several tacker arms have concluded their inward movements the upper-holding tacks are driven automatically and the shoe is then released by the machine.
  • the inner ends of the wipers 39 are so shaped that at the end of their inward movements portions of them lie between the shoe bottom and those U tack holders in which the tack pockets 32 that are nearest the heel end of the shoe are located, the wipers thus engaging the upper in locations close to the locations where the tacks driven from these tack pockets enter the shoe. It will also be observed that the edges of the upper-engaging portions of these wipers which are toward the toe end of the shoe are disposed in such angular relations to the directions of inward movement of the wipers that they tend to crowd the marginal portion of the upper forwardly toward the toe'end of the shoe in the movements of the wipers over the shoe bottom.
  • the combination with means for pulling an upper over a last at the opposite sides of the forepart, of overlaying devices movable widthwise of the last after the pulling of the upper to lay its marginal portion inwardly over a sole on the last at the sides of the forepart, and other overlaying devices arranged to engage the upper at the sides of the forepart in locations spaced lengthwise of the last toward its heel end from said first-named devices and movable widthwise of the last, with components of movement also toward the toe end of the last in angular relation to the directions of movement of said first-named devices, to lay the marginal portion of the upper inwardly over the sole.
  • the combination with means for pulling an upper over a last at the opposite sides of the forepart, of wipers movable widthwise of the last in locations spaced from the end of the toe after the pulling of the upper to wipe the marginal portion of the upper inwardly over a sole on the last at the opposite sides of the toe portion, and other wipers arranged to engage the upper at the sides of the forepart in locations substantially at the ball portion of the shoe and movable widthwise of the last, with components of movement also toward the toe end of the last in angular relation to the directions of movement of said first-named wipers, to wipe the marginal portion of the upper inwardly over the sole.
  • the combination with means for pulling an upper over a last at the opposite sides of the forepart, of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper, wipers movable widthwise of the last with said upper-fastening devices with components of movement also toward the heel end of the last to wipe the marginal portion of the upper inwardly over a sole on the last at the opposite sides of the toe portion preparatory to the insertion of the fastenings, and other wipers movable widthwise of the last independently of said upper-fastening devices with components, of movement also toward the toe end of the last to wipe the marginal portion of the upper inwardly over the sole in locations substantially at the ball portion of the shoe.
  • the combination with means for pulling an upper over a last at the opposite sides of the forepart, of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper, wipers movable with said upper-fastening devices to wipe the marginal portion of the upper inwardly over a sole on the last at the opposite sides of the toe portion preparatory tothe insertion of the fastenings, other wipers movable widthwise of the last independently of said upperfastening devices with components of movement also toward the toe end of the last to wipe the marginal portion of the upper inwardly over the sole in locations farther from the end of the toe than said first-named wipers, and means for moving said other wipers into engagement with the upper before said-first-named wipers engage the upper.
  • the combination with means for pulling an upper over a last at the opposite sides of the for'epart, of upper-fastening devices movable widthwise of the last into positions for inserting at each side of the forepart a plurality of fastenings to fasten the upper, wipers movable with said upper-fastening devices to wipe the marginal portion of the upper inwardly over a sole on the last only in locations nearer the end of the toe than the foremost side fastenings, and other wipers movable independently of said upper-fastening devices to wipe the marginal portion of the upper inwardly over the sole at the sides of the forepart, said other wipers being confined to opera-. tion on portions of the upper located farther from the end of the toe than the rearmost side fastenings.
  • said overlaying members, and other overlaying members carried by said clamping devices and arranged to lay the marginal portion of the upper inwardly over the sole at the sides of the forepart in locations farther from the end of the toe than said first-named members.
  • -Wipers movable with said upper-fastening devices and arranged to wipe the marginal portion of the upper inwardly over a sole on the last at the sides of the toe, clamping devices movable to clamp the upper against the sides of the last after the pulling of the upper and prior to the inward movements of said upper-fastening devices, and other wipers carried by said clamping devices and movable widthwise of the last with components of movement also toward the toe end of the last to wipe the marginal portion of the upper inwardly over the sole in locations substantially at the ball portion of the shoe.
  • the combination with means for pulling an upper over a last at the opposite sides of the forepart, of wipers movable widthwise of the last to wipe the marginal portion of the upper inwardly over a sole on the last at the sides of the forepart, clamping devices movable to clamp the upper against the sides of the last while the upper is held by the upper-pulling means and prior to the inward movements of said wipers, and members carried by said clamping devices for engaging the upper and clamping it against the sole in locations at or near the ball line of the shoe before said wipers operate on the upper.
  • the combination with grippers for pulling an upper over a last at the opposite sides of the forepart of clamping devices movable widthwise of the last into positions to clamp the upper against the sides of the last while the upper is held by the grippers, wipers carried by said clamping devices for wiping the marginal portion of the upper inwardly over a solo on the last, members movable widthwise of the last to operate said clamping devices, springs through which said devices are operated yieldingly by, said members, and other springs operated by said members for moving said wipers inwardly over the sole relatively to the clamping devices.

Description

Nov. 6, 1934.
ca. P. SWALES ET AL 1,979,420
MACHINE FOR SHAPING UPPERS OVER LASTS Filed Dec. 12, 1933 2 Sheets-Sheet 1 NOV. 6, 1934. p sw r AL v 1,979,420
MACHINE FOR SHAPING UPPERS OVER LASTS Filed Dec. 12, 1933 2 Sheets-Sheet 2 awezagiaaaiiia iaa= q i m Patented Nov. 6, 1934 MACHINE FOR SHAPING UPPERS oven LAST George Prior Swales, William Thomas Buckingham Roberts, and Harold Lane, Leicester, England, assignorsyto United Shoe Machinery Corporation, PatersomN. J., a corporation of New Jersey Application December 12, 1933, Serial No. 702,038
' In Great Britain January 12, 1933 29 Claims.
This invention relates'to machines for shaping uppers over lasts, and more particularly to machines havingmeans for pulling the upper over the last and for laying its marginal portion in- 5. wardly over an insole or sole onthe last and for fastening it in tensioned condition. The invention is herein illustrated as applied to a machine, of the same general type as disclosed in Letters Patent No. 1,510,851, granted on October 7, 1924, upon an application of Arthur E. Jerram and Joseph Gouldbourn, but it is to be understood that it is also applicable to machines of other types.
Machines of the type illustrated in the abovementioned Letters Patent are provided with a plurality of grippers for pulling the upper over a last at the end of the toe and the sides of the forepart, and are provided also with overlaying andfastening devices which are moved inwardly into positions for inserting upper-holding fas- ,tening's at the end of the toe and the sides of the forepart after the pulling of the upper, these devices including wipers which wipe the marginal portion of the upper inwardly over the shoe bottom preparatory to the fastening-inserting operation. Such machines often include, for example, five upper-pulling grippers, one at the end of the toe and two at each side of the forepart, and means for driving seven fastenings, one at the end of the toe and three at each side of the forepart, to fasten the upper in pulled-over position. The present invention provides an improved construction such that a machine having, for example, means for driving seven upper-holding fastenings as above described, may drive the reamost .side fastenings, i. e., those located farthest from the end of the toe, in locations nearer the waist portion of the shoe than customary heretofore, without danger of undue crowding of surplus upper material into the waist portion of the shoe as the marginal portion of the upper is laid or wiped inwardly over the insole or other shoe bottom part (hereinafter frequently referred to generically as the sole) preparatory to the fastening-inserting operation. For the purposes in view the construction shown comprises, in addition to members movable as heretofore with the side fastening devices to lay or wipe the marginal portion of the upper inwardly over the sole at the sides of the forepart, other overlaying members so arranged and operated asito engage the upper in locations farther from the end of the toe than the above-mentioned members and. to lay the upper over the sole in such 55; manner as to prevent the crowding of surplus upper material into the waist portion of the shoe. As illustrated, these additional members engagethe upper at the ball portion of the shoe in locations slightly farther from the end of the toe than the locations of the rearmostside fastenings, and are moved widthwise of the shoe with components of movement also toward'the toe end of the shoe in angular relation to the directions of movement of the side overlaying members that operate nearer the end of the toe, the latter being so constructed and arranged as to engage the upper only at the toe portion at substantial distances'from the additional mem-- bers. In further accordance with the illustrative disclosure the additional overlaying memhere are moved inwardly into engagement with the upper whilethe upper is still held by the grippers and before the overlaying members that move with the fastening devices and operate at the sides of the toe engage the upper, the additional members being controlled by springs which impel them inwardly over. the shoe bottom immediately uponthe release of the upper by the grippers. As also herein shown, and in accordance with a further feature of the invention, the so additional overlaying members are carried by side clamping devices which in machines of the ilrespectively to these devices and members.
The aboveand other-features of theinvention, including various novel details .of construction and combinations of parts, will now be more particularly described by reference to the accompanying drawings and pointed out inthe claims.
In the drawings, 7
Fig. 1 is a view in left-hand side elevation of aportion of a machine in which the invention is embodied; i
Fig. 2 shows a portion of the machine in front elevation, with parts broken away;
Fig. 3 is a view, from the rear of the machine, of certain parts shown at the right-hand side of .Fig. 2;
. Fig. 4 shows a portion of the machine as viewed in the direction of the arrow on Fig. l; I
Fig. 5 shows a shoein section and illustrates the relation of certain parts of the machine to the shoe after the clamping of the upper to the last but before its release by the grippers;
Fig. 6 is a view in the direction of the arrow on Fig. 1, illustrating the positions of certain parts at the same stage in the cycle of the machine as represented by Fig. 5; I
Fig. 7 is a view similar to Fig. 5, illustrating the positions of the parts at the conclusion of the fastening-inserting operation; and
Fig. 8 is a view similar to Fig. 6, illustrating the positions of the parts at the same stage in the cycle as represented by Fig. '7.
Since the invention, as above stated, is herein illustrated as applied to a machine of the wellknown type, disclosed in the previously mentioned Letters Patent, only such parts of the machine as it is necessary to refer to for an understanding of the invention will be hereinafter mentioned.
As above suggested, the machine herein shown has five grippers for pulling the upper over the forepart of. the last and means for driving seven tacks through the upper and the sole at the forepart of the last bottom to fasten the upper in pulled-over position. The last with an upper and a sole assembled thereon is supported against the pull of the grippers by a work support or sole rest 1 (Figs. 2 and 4) on which the work is positioned by the operator with the last bottom downward and its toe end pointing upwardly toward the rear of the machine. Near the beginning of the operation of the machine a heel rest 3 (Fig. 1) is moved lengthwise of the last into engagement with the heel end of the shoe to assist in maintaining the work in proper position. One of the five grippers, indicated at 5 in Figs. 1, 2 and 4, is positioned rearwardly of the work support 1 for operation upon the upper at the extreme toe end of the last, and two grippers 7 are arranged to operate on the upper respectively at the opposite sides of the last in locations at or near the ends of the toe tip line if the upper isprovided with a toe tip. The other two grippers 9 are arranged to operate on the upper respectively at the opposite sides of-the last in locations about an inch nearer the heel end of the upper, for example, than the grippers '7 and at approximately the same distance from the toe end of the last as the ball line of the shoe. It will be understood that the grippers, which are normally open to receive the upper materials when the machine is at rest, are moved in downwardly and rearwardly inclined directions relatively to the inclined last so as to pull the upper in directions substantially perpendicular to the plane of the last bottom, these movements being effected by camoperated levers which act yieldingly on the grippers through springs adjustablein strength. The five grippers are also arranged to move inwardly toward each other after they have pulled the upper heightwise of the last, to draw the margin of the upper inwardly across the edge of the sole. The machine is further equipped with a pair of upper-clamping arms 11 (Figs. 1 and 2) arranged to swing inwardly toward each other about horizontal pivots 13 (Fig. 1) after the grippers have pulled the upper heightwise of the last, and each of these arms carries, as usual in machines of the illustrated type, a curved self adjusting rubber pad 15 which serves to clamp the upper against the side of the last in the region of the tip line and fairly close to the bottom of the last, and a self-adjusting rubber pad 17 which serves to clamp the upper against the top face of the forepart of the last also in the region of the tip line. These pads clamp the upper against the last before the grippers release the upper, and by their pressure prevent the upper from recovering its original slackened condition when the grippers release it preparatory to the tack-driving operation.
The machine herein shown is also provided, like prior machines, with three tacker arms having at their upper ends tack holders from which tacks are driven upwardly into the shoe bottom to fasten the upper in pulled-over position after the upper has been released by the grippers. The tacks. are fed to the tack holders by means of substantially the same character as disclosed in Letters Patent No. 1,921,099, granted on August 8, 1933 upon an application of W. T. B. Roberts,
this means including tubes 19 which lead from tack-supplying means 21 (Fig. 1). One of these tacker arms, shown at 23 in Fig. 1, is mounted at the rear of the toe gripper 5 and is provided with means for driving a single tack at the toe end of the shoe. The arm 23 is mounted to swing forwardly about a horizontal axis 25 and carries a yieldable wiper 27 which, as the arm is swung forwardly, engages the extreme toe end of the upper near the edge of the sole and wipes the marginal portion of the upper inwardly over the sole before the tack is driven. A soft rubber block 29 carried by the arm 23 serves to limit the forward movement of the arm by contact with the toe end or the shoe. The other two tacker arms, indicated at 31 in Figs. 1 and 4, are mounted one at each side of the machine in locations farther ou.twardly from the Work support than the side grippers, and each of these tacker arms carries at its upper end three tack holders arranged in a series lengthwise of the shoe and provided with tack pockets 32 (Figs. 4, 6 and 8) from which tacks are driven upwardly into the shoe bottom to fasten the upper at the side of the forepart. These two tacker arms are swung inwardly toward each other into positions for the tack-driving operation, the directions of their inward movements being approximately perpendicular to that portion of the edge of the shoe bottom which is located near the toe tip line so that the arms have components of movement lengthwise of the shoe toward its heel end as well as widthwise of the shoe. The locations of the side tacks in relation to the shoe, as the machine herein shown is constructed, may be inferred from the positions of the tack pockets 32 in Fig. 8, and are such that one tack at each side is slightly nearer the end of the toe than the tip line, another is slightly farther from the end of the toe than the tip line, and the remaining tack is about an inch nearer the heel end of the shoe than the last-mentioned tack.
For wiping the marginal portion of the upper inwardly over the sole at the opposite sides of the it shoe bottom preparatory to the tack-driving operation the machine herein shown is provided with novel means which will now be described. As illustrated, each of the clamping arms 11 carries at its upper end and at the side thereof .L
which is nearer the toe end of the shoe a short depending ear 33 (Figs. 1 and 3) which is spaced somewhat from the side of the arm. A pin 35 is arranged to extend lengthwise of the shoe through the car 33 and into the arm 11 and has freely pivoted on it a carrier 37 for an overlaying member or wiper 39. The wiper 39 comprises a metal blade which may be, for example, about half an inch in width at its extreme inner end and about an eighth of an inch in thickness, and it projects 1 b ill) normally inward toward the location of the shoe somewhat farther than theupper-clamping pad 15, as indicated in Fig. 3. Formed integral with the outer end of 1 the wiper 39 is a block 41 which is mounted in .a guideway formedin the lower face of the carrier 37, this guideway extending inwardly toward the side of the shoe andsomewhat. also toward the toe end of the shoe; The outer end. of the blockel, which projects beyond the outer end of the carrier 37,is turned upwardly and has secured in it a rod 43 which extends inwardly into a bore formed in the carrier-37. above and parallel to "the above-mentioned guideway inthe carrier. -A light spring. 45 encircling the rod43 bears atits inner end on the outer. end of thecarrier 37 and at its outer end on the upturned end of the block ll and thereforetends to force thisblock and the wiper 39 outwardlyfrom theshoe; fFor limiting such outward movement of the block and wiper the wiper is provided with an upwardly extending ear 47 (Figs. 1, 2 and 3) in engagementwith the inner end of a plunger 49 which is housed in a tubular guide 51 extending inwardly toward the work support and. secured to an arm 53. This arm is generally similar in shape to the clamping arm 11 and is mounted on the same pivot 13 as thetclamping arm. A strong spring (Fig. 2) is housed in the guide 51 behind the plunger 49 and serves to force. the wiper 39 inwardly toward the shoe against-the resistance ofthe spring as when the arm 53 is moved in that. direction. The plunger 49 and the spring 55 are adjustable along the guideway in the member 51 to vary the initial positionof the wiper 39 by rotationof a sleeve 5'? which is threaded in the member 51. This sleeve serves as an abutment for the spring 55 and has therein abore through which extends a rod 58 that projects from the plunger 49. 1 i
The arin53 at each side of the. machine has formed .on its lower end an inwardly projecting gear sector 59 (Fig. 2) which meshes with gear teeth formed on a vertically movable rack bar 61. This rack bar is operatedpositively by a face cam 63 (Fig. 1) on the machine cam shaft 65 and by downward movement imparts inward swinging movements to the arms 53; their outward movements being effected by aspring (not shown). Each of the arms 53 has at its upper end an outwardly extending arm 67 which is curved about an axis concentric with the pivot 13 about which the arm 53 and thev clamping arm 11 are swung,- and in the outer end of the arm 67 there is secured 'a pin 69 having a rounded outer end extending into a guideway 71 formed the ad jacent clamping arm 11, this guideway being curved similarly tothe arm 67. A strong spring 73 located in the guideway 71 abuts at one end against: the pin 69 and thus serves'aspart of a yielding coupling between the. arm '53 and the clamping arm 11, so that inward swinging movement is imparted yieldingly to the arm 11 by correspondingmovement of the arm 53. r
It willbe. understood that in the operation of a-machine of the illustrated type, after the shoe upper and last have been correctly positioned in the machine with the margin of the upper materials between the open jaws of the grippers, the operator depresses a starting treadle and the grippersthereupon grip the margin of the upper and'jmove heightwise of the last to tension the upper over the last. After the grippers have finished their upper-pulling movements heightwise cfthe last, but before they release the upper, the arms'53 in the machine herein shown are swung inwardlyby downward movement of therack bar Gland through the springs 73 serve to swing the clamping arms 11. inwardly. Since the wipers 39 carried by the clamping arms 11 project inwardly somewhat beyond therubber pads 15, as hereinbeforedescribed, the inner ends of these wipers engage and press inwardly against the marginal portion of. the tensioned upper'in locations just below the level of the sole before the pads 15 and 17 .onthe clamping arms 11 arrive in upper-clamping positions. The wipers 39 are so positioned on the clamping arms that their inner ends engage the upper initially .in locations slightly nearer the heel end of the shoe than the portions of the upper that are engaged by the side grippers 9. While the grippers continue to hold the upper under tension the resistance of the upper preventsthe wipers 39 from being moved to. any substantial extent inwardly over the shoe bottom, as will be evident by reference to Fig. 5, and accordingly during further inward movements of the arms 53 after these wipers have engaged the upper the springs 55 which back up the plungers 49 yield so as to permit the wipers to remain substantially stationary while the pads 15 and 17 are carried into clamping engagement with the upper. The fact that the wipers are urged inwardly by spring plungers which are carried by the positively operated arms 53 and not by the clamp arms 11 relieves the springs 73 of the duty of moving both the wipers and the rubber pads into en gagement with the upper and of pressing them against the upper and therefore permits the pads to be forced more firmly against the upper than they otherwise would be. I
After the pads 15 and 17 on the clamping arms ll ha've engaged the upper and clamped it firmly against the last, and while the wipers 39 are pressing at their inner ends hard against the upper in locations slightly nearer the heel end of the shoe than the grippers 9, as hereinabove described, the tacker arms 23 and 31 are swung automatically inward toward positions for driving the upperholding tacl s upwardly into the shoe bottom. It will be understood thatas the tacker arms are swung inwardly in a machine of the illustrated type they are carried into engagement with memhere on the grippers which in response to such engagement cause the grippers to release the upper. Immediately upon such release of the upper by the grippers the wipers 39 are forced quickly inward over the shoe bottom by the springpressed plungers 19, thereby wiping the marginal portion of the upper inwardly over the sole as indicated in Figs.7 and 8. By reference to Fig. 8 it willbe seen that these wipers act on the upper in locations substantially at the ball portion of the shoe but farther from the toe end of the shoe than the rearmost side fastenings.
As the wipers 39 are forced inwardly over the 1 sole in themanner above described they serve to press the upper firmly against the bottom face of the sole. For this purpose there is associated with each wiper an upwardly extending spring- "pressed plunger 75 (Fig. 1) which is mounted in the upper end of the clamping arm 11.
This plunger bears at its lower end on the carrier 37 in a location farther from the work support than the pivot pin 35 about which this carrier swings,
so that the plunger serves to urge the inner end 'I of the wiper 39 in an upward direction. The plunger 75 is controlled by a spring 76 which bears at its upper end against a member 77 movable in the bore in which the plunger is mounted, and this member may be forced downwardly in the bore to increase the compression of the spring by a rotary hand lever device '79 having an ec'ct-intric portion bearing against the upper end of the member. Thus the upward pressure 5 with whichthe wipers 39 engage the upper may be varied. The inner ends of these wipers are turned downwardly somewhat so that they may ride easily over'the edge of the shoe bottom. A hooked member 81 carried by each clamping arm 1-0 11 has its lower end portion extending beneath a block on the carrier 37, as shown in Fig. 3, so as to limit movement of the carrier under the influence of the plunger 75. In order to position the inner ends of the wipers 39 properly heightwise of the shoe the members 81 are adjustable :heightwise of the shoe so as to adjust the carriers 37 about their pivot pins 35. Such adjustment of each member 81 is effected by a screw 87- which passes through a forwardly turned portion at the upper end of the member 81 and bears against the upper end of the clamping arm 11. To hold the member 81 in adjusted position there is provided a slot and bolt connection 89 between the member and the clamping arm.
Since the wipers 39 engage the upper in locations slightly nearer the heel end of the shoe than the grippers 9, they tend, when they first engage the upper held by these grippers, to defleet portions of the upper adjacent to the grippers lengthwise of the shoe toward its toe end, this tendency being increased by reason of the fact that the wipers as they move inwardly along the guideways in their carriers 37 have each a component of movement toward the toe end of the shoe. When the wipers are moved inwardly over the shoe bottom immediately upon the release or' the upper by the grippers, they have a further tendency to crowd the marginal portion of the upper engaged thereby toward the toe end of the shoe, after which they hold it clamped upon the sole while the tacks are driven. Each of the side tacker arms 31 also carries means for laying or wiping the marginal portion of the 'upper inwardly over the sole at the forepart, this means in the construction shown consisting of a wiper 85 having a single upper-engaging finger which acts in the inward movement of the tacker arm, after the grippers release the upper, to wipe inwardly over the sole a portion of the margin of the upper located slightly nearer the end of the toe than the corresponding side gripper '7 and nearer the end of the toe than the location of the foremost side fastening. Since, however, the wipers 39 are moved into engagement with "the upper earlier than the wipers 85 and are forced inwardly over the shoe bottom slightly in advance of the action of the wipers 85 on the upper when the grippers release the upper, and since also the wipers 39 are spaced substantial s, distances from the wipers 85, there is no danger of urging any excess of upper materials into the waist portion of the shoe and thereby rendering difiicult the later side-lasting operation, notwithstanding the fact that the wipers 85 have components of movement lengthwise of the shoe toward its heel end due to the directions of movement of the arms 31. When the several tacker arms have concluded their inward movements the upper-holding tacks are driven automatically and the shoe is then released by the machine.
By reference to Fig. 8 it will be seen that the inner ends of the wipers 39 are so shaped that at the end of their inward movements portions of them lie between the shoe bottom and those U tack holders in which the tack pockets 32 that are nearest the heel end of the shoe are located, the wipers thus engaging the upper in locations close to the locations where the tacks driven from these tack pockets enter the shoe. It will also be observed that the edges of the upper-engaging portions of these wipers which are toward the toe end of the shoe are disposed in such angular relations to the directions of inward movement of the wipers that they tend to crowd the marginal portion of the upper forwardly toward the toe'end of the shoe in the movements of the wipers over the shoe bottom.
While the machine herein shown is constructed especially to operate upon shoes of the McKay sewed type, the upper-fastening tacks being fully driven and clinched on a metal plate on the bottom of the last as illustrated in Fig. '7, it is to be understood that the invention is not limited to a machine of that particular character or that operates upon a shoe of that particular kind. It is also to be understood that the invention is not limited to a machine having the particular number of grippers and of fastening-inserting devices herein shown.
Having described the invention, what we claim as new and desire to secure by Letters Patent of the United States is:
1. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of overlaying devices movable widthwise of the last after the pulling of the upper to lay its marginal portion inwardly over a sole on the last at the sides of the forepart, and other overlaying devices arranged to engage the upper at the sides of the forepart in locations spaced lengthwise of the last toward its heel end from said first-named devices and movable widthwise of the last, with components of movement also toward the toe end of the last in angular relation to the directions of movement of said first-named devices, to lay the marginal portion of the upper inwardly over the sole.
2. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of overlaying devices movable widthwise of the last after the pulling of the upper with components of movement also toward the heel end of the last to lay the marginal portion of the upper inwardly over a sole on the last at the sides of the forepart, and other overlaying devices arranged to engage the upper at the sides of the forepart in locations spaced lengthwise of the last toward its heel end from said first-named devices and movable widthwise of the last with components of movement also toward the toe end of the last to lay the marginal portion of the upper inwardly over the sole.
3. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of wipers movable widthwise of the last in locations spaced from the end of the toe after the pulling of the upper to wipe the marginal portion of the upper inwardly over a sole on the last at the opposite sides of the toe portion, and other wipers arranged to engage the upper at the sides of the forepart in locations substantially at the ball portion of the shoe and movable widthwise of the last, with components of movement also toward the toe end of the last in angular relation to the directions of movement of said first-named wipers, to wipe the marginal portion of the upper inwardly over the sole.
4; In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of members movable bodily widthwise of the last in locations spaced from the end of the toe after the pulling of the upper to lay the marginal portion of the upper inwardly over a sole on the last at the opposite sides of the forepart, other members movable to lay the marginal portion of the upper inwardly over the sole at the, sides of the forepart in locations farther from the end of the toe than said first-named members, and automatic means for moving said other members inwardly into engagement with the upper before said first-named members engage the upper.
5 In a machine for shaping uppers overlasts, the combination with means for pulling anupper over a last at the opposite sides of the forepart, of members movable widthwise of thelast after thepulling of the upper to lay its marginal portioninwardly over a sole on the last at the sides of the forepart, other members movable widthwise of the last with components of movement also toward the toe end of the last in angular relation to the directions of movement of said firstnamed members to lay the marginal portion of the upper inwardly over the sole at the sides of the forepart in locations farther from the end of the toe thansaid first-named members, and automatic means for moving said other members inwardly into engagement with the upper before said first-named members engage the upper.
6. Ina. machine for shaping uppers over lasts, the combination with means for pulling an upper over a lastat the opposite sides of the forepart, of wipers movable widthwise of the last after the pulling of the upper to wipe its marginal por- Ition inwardly over a sole on the last at the opand automatic means for moving said other wipers inwardly into engagement with the upper before said first-named wipers engage the upper.
7. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart,
of members movable widthwise of the last with components of movement also toward the heel end of the last after the pulling of the upper to lay its marginal portion inwardly over a sole on the last at the sides of the forepart, and other ftoclamp the upper to the sole to counteract any tendency for the crowding of the upper unduly toward the waist portion of the shoe in the overlaying operation.
8. In a machine for shaping uppers over lasts,
the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of members movable bodily widthwise of the last to lay the margin of the portions of the upper pulled by said grippers inwardly over a sole on the last, and other members arranged to engage and press inwardly portions of the upper adjacent to said grippers, but located farther from the end of the toe than the grippers, while the grippers are still holding the upper and before said first-named members engage the upper, said other members being movable upon the release of the upper by the grippers to lay the marginal portion of the upper inwardly over the sole.
9. In a machine for shaping uppers over lasts, the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of members movable widthwise of the last to lay the marginof the portions of the upperpulled by said grippers inwardly over a sole on the last, and other members arranged to engage and press inwardly portions of the upper adjacent to said grippers, but located farther from the end of the toe than the grippers, while the grippers are still holding the upper and before said first-named members engage the upper, said other members being movable widthwise of the last with components of movement also toward the toe end of the last in angular relation to the directions of movement of said first-named members upon the release of the upper by the grippers to lay the marginal portion of the upper inwardly over the sole.
10. In a machine for shaping uppers over lasts, the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of wipers movable bodily widthwise of thelast to wipe the margin of the portions of the upper pulled by said grippers inwardly over a sole on the last, other wipers arranged to wipe the upper over the sole in locations farther from the end of the toe than said first-named wipers, and means for moving said other wipers inwardly into engagement with the upper while the grippers are still holding the upper and before said first-named wipers engage the upper and for .1,
thereafter moving said other wipers farther inwardly to wipe the upperover the sole when the upper is released by the grippers.
11. In a machine for shaping uppers over lasts,
the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of wipers movable bodily widthwise of the last with components of movement also toward the heel end of the last to wipe the margin of the portions of the upper pulled by said grippers inwardly over a sole onlthe last, and other wipers movable widthwise of the last with components of movement also toward the toe end of the last to wipe the upper inwardly over the sole in locations farther from the end of the toe than said first-named wipers, and means for moving said other wipers into engagementwith the upper while the grippers are still holding the upper and before first-named wipers engage the upper and for thereafter moving said other wipers farther inwardly to wipe the upper over the sole when the upper is released by the grippers.
12. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart,
of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper; members movable with said upper-fastening devices to lay the marginal portion of the upper inwardly over a sole on the last prior to the fastening-inserting operation, and other members movable inwardly into engagement with the upper independently of said upper-fastening devices and arranged to lay the marginal portion n over a last at the opposite sides of the forepart, of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper, members movable with said upper-fastening devices to lay the marginal portion of the upper inwardly over a sole on the last prior to the fastening-inserting operation, other members movable into engagement with the upper independently of said upper-fastening devices and arranged to lay the marginal portion of the upper inwardly over the sole at the sides of the forepart in locations farther from the end of the toe than said first-named members, and automatic means for moving said other members into engagement with the upper before said first-named members engage the upper.
14. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper, members movable with said upper-fastening devices to lay the marginal portion of the upper inwardly over a sole on the last prior to the fastening-inserting operation, and other mem bers movable widthwise of the last independently of said upper-fastening devices with components of movement also toward the toe end of the last in angular relation to the directions of movement of said first-named members to lay the marginal portion of the upper inwardly over the sole at the sides of the forepart in locations farther from the end of the toe than said first-named members.
15. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper, wipers movable widthwise of the last with said upper-fastening devices with components of movement also toward the heel end of the last to wipe the marginal portion of the upper inwardly over a sole on the last at the opposite sides of the toe portion preparatory to the insertion of the fastenings, and other wipers movable widthwise of the last independently of said upper-fastening devices with components, of movement also toward the toe end of the last to wipe the marginal portion of the upper inwardly over the sole in locations substantially at the ball portion of the shoe.
16. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper, wipers movable with said upper-fastening devices to wipe the marginal portion of the upper inwardly over a sole on the last at the opposite sides of the toe portion preparatory tothe insertion of the fastenings, other wipers movable widthwise of the last independently of said upperfastening devices with components of movement also toward the toe end of the last to wipe the marginal portion of the upper inwardly over the sole in locations farther from the end of the toe than said first-named wipers, and means for moving said other wipers into engagement with the upper before said-first-named wipers engage the upper.
17. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the for'epart, of upper-fastening devices movable widthwise of the last into positions for inserting at each side of the forepart a plurality of fastenings to fasten the upper, wipers movable with said upper-fastening devices to wipe the marginal portion of the upper inwardly over a sole on the last only in locations nearer the end of the toe than the foremost side fastenings, and other wipers movable independently of said upper-fastening devices to wipe the marginal portion of the upper inwardly over the sole at the sides of the forepart, said other wipers being confined to opera-. tion on portions of the upper located farther from the end of the toe than the rearmost side fastenings.
18. In a machine of for shaping uppers over lasts, the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper, wipers movable widthwise of the last with said upper-fastening devices to Wipe the marginal portion of the upper inwardly over a sole on the last prior to the fastening-inserting operation, other wipers movable independently of said upper-fastening devices, into engagement with the upper and. arranged to wipe the marginal portion of the upper inwardly over the sole in locations farther from the end of the toe than said first-named wipers, and means for moving said other wipers, inwardly into engagement with the upper while the grippers are still holding the upper and prior to the inward movements of said upper-fastening devices and for thereafter moving said other wipers farther inwardly to Wipe the upper over the sole, when the upper is released by the grippers.
19. In a machine for shaping uppers. over lasts, the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of upper fastening devices movable Width- Wise of the last into positions for. inserting fastenings at the Sides of the forepart to fasten the pper, W pers movable widthwise of the last. with said pper-fastenin devices with c mponents of movement also toward the heel end of the last to wipe the marginal portion of the upper inwar over a sole. on the last. at. the sides of the toe, other wipers movable widthwise of. the, last into en agement with, the upper independently of said upper-fastening devices with components of movement also toward the toe end10f' the last and arran ed t w pe the pp r ov r the sole in locations substantially at the ball portionof the shoe, and means for moving said other wipers into engagement with the upper while the grippers are still holding the upper and'pri'or to the inward movements of said upper-fastening devices and for thereafter moving said other wipers farther inwardly to Wipe the upper over the sole, when the upper is released by the grippers.
20. In a machine. for, shaping uppers over, lasts, the combination with meansfor. pulling an upper over a last at the opposite sides of the forepart, of overlaying members movable widthwise of. the last, to lay the marginal portion of. theupper inwardly over a, sole on the last at the sides of the forepart, clamping devicesimovable, to clamp the. upper aeainstthe sides. of the last after the. pull-- ing of the upper and, prior to. the movements. oi
said overlaying members, and other overlaying members carried by said clamping devices and arranged to lay the marginal portion of the upper inwardly over the sole at the sides of the forepart in locations farther from the end of the toe than said first-named members.
I 21. In a machine forshaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of overlaying members movable widthwise of the last to lay the marginal portion of the upper inwardly over a sole on the last at the sides of the forepart, clamping devices movable to clamp the upper against the sides of the last after the pulling of the upper and prior to the movements of said overlaying members, and other overlaying members carried by said clamping devices and movable widthwise of the last with components of movement also toward the toe end of the last in angular relation to the directions of movement of said first-named members to lay the marginal portion of the upper inwardly over the sole in locations substantially at the ball portion g of the shoe.
22. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper, overlaying members movable with said upperfastening devices to lay the marginal portion of the upper inwardly over a sole on the last at the sides of the forepart, upper-clamping devices members carried by said clamping devices and arranged to lay the marginal portionof the upper inwardly over the sole in locations farther from the end of the toe than said first-named members.
23. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of upper-fastening devices movable widthwise of the last into positions for inserting fastenings at the sides of the forepart to fasten the upper,
-Wipers movable with said upper-fastening devices and arranged to wipe the marginal portion of the upper inwardly over a sole on the last at the sides of the toe, clamping devices movable to clamp the upper against the sides of the last after the pulling of the upper and prior to the inward movements of said upper-fastening devices, and other wipers carried by said clamping devices and movable widthwise of the last with components of movement also toward the toe end of the last to wipe the marginal portion of the upper inwardly over the sole in locations substantially at the ball portion of the shoe.
24. In a machine for shaping uppers over lasts, the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of overlaying members movable widthwise of the last to lay the marginal portion of the upper inwardly over a sole on the last at the sides of the forepart, clamping devices movable to clamp the upper against the sides of the last while the upper is held by the grippers and prior to the inward movements of said overlaying members, other overlaying members movable M with said clamping devices and arranged to lay the upper inwardly over the solo at the forepart said first-named members, and springs arranged to yield upon the initial engagement of said other members with the upper held by the grippers and thereafter to force the members inwardly over the shoe bottom when the upper is release by the grippers.
25. In a machine for shaping uppers over lasts, the combination with means for pulling an upper over a last at the opposite sides of the forepart, of wipers movable widthwise of the last to wipe the marginal portion of the upper inwardly over a sole on the last at the sides of the forepart, clamping devices movable to clamp the upper against the sides of the last while the upper is held by the upper-pulling means and prior to the inward movements of said wipers, and members carried by said clamping devices for engaging the upper and clamping it against the sole in locations at or near the ball line of the shoe before said wipers operate on the upper.
26. In a machine for shaping uppers over lasts, the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of clamping devices movable widthwise of the last into positions to clamp the upper against the sides of the forepart of the last while the upper is held by the grippers, and members carried by said clamping devices for engaging the upper and laying its marginal portion inwardly over a sole on the last at the sides of the forepart, said members being movable relatively to the clamping devices widthwise of the last with components of movement also toward the toe end of the last to lay the upper over the sole.
27. In a machine for shaping uppers over lasts, the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of clamping devices movable widthwise of the last into positions to clamp the upper against the sides of the forepart of the last while the upper is held by the grippers, members carried by said clamping devices for engaging the upper and laying its marginal portion inwardly over a sole on the last at the sides of the forepart, said members being movable inwardly over the sole relatively to the clamping devices with components of movement also toward the toe end of the last, and springs for thus moving said members inwardly after the release of the upper by the grippers.
28. In a machine for shaping uppers over lasts,
the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of clamping devices movable widthwise of the last into positions to clamp the upper against the sides of the last while the upper is held by the grippers, wipers carried by said clamping devices for wiping the marginal portion of the upper inwardly over a solo on the last, members movable widthwise of the last to operate said clamping devices, springs through which said devices are operated yieldingly by, said members, and other springs operated by said members for moving said wipers inwardly over the sole relatively to the clamping devices.
29. In a machine for shaping uppers over lasts,
the combination with grippers for pulling an upper over a last at the opposite sides of the forepart, of members for clamping the upper against the opposite sides of the last, clamp arms mounted for swinging movements widthwise of the last to carry said members intoclamping positions, overlaying members carried by said clamp arms for laying the marginal portion of the upper in locations farther from the end of the toe than ingly inward over the sole-relatively to the clamp arms.
GEORGE PRIOR SWALE S. WILLIAM THOMAS BUCKINGHAM ROBERTS. HAROLD LANE.
US702038A 1933-01-12 1933-12-12 Machine for shaping uppers over lasts Expired - Lifetime US1979420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1979420X 1933-01-12

Publications (1)

Publication Number Publication Date
US1979420A true US1979420A (en) 1934-11-06

Family

ID=10895161

Family Applications (1)

Application Number Title Priority Date Filing Date
US702038A Expired - Lifetime US1979420A (en) 1933-01-12 1933-12-12 Machine for shaping uppers over lasts

Country Status (1)

Country Link
US (1) US1979420A (en)

Similar Documents

Publication Publication Date Title
US1979420A (en) Machine for shaping uppers over lasts
US2000912A (en) Machine for shaping shoe uppers
US2096761A (en) Machine for operating on stitchdown shoes
US1884508A (en) Lasting machine
US1335779A (en) Lasting-machine
US1694449A (en) Apparatus for use in assembling uppers and insoles
US2013057A (en) Lasting machine
US2072214A (en) Method and means for use in lasting shoes
US1336875A (en) Assembling-machine
US1501053A (en) Machine for shaping uppers over lasts
US2028248A (en) Lasting machine
US2013036A (en) Method of making shoes
US1500152A (en) Machine for working uppers over lasts
US1648403A (en) Machine fob wokking itppbes over lasts
US2063938A (en) Method of and machine for assembling shoe parts
US1163599A (en) Machine for use in the manufacture of boots and shoes.
US1860742A (en) Machine for shaping uppers over lasts
US1423613A (en) Machine for working uppers over lasts
US1379923A (en) Machine for shaping uppers to lasts
US1694450A (en) Method of assembling uppers and insoles
US2008069A (en) Method of and machine for lasting shoe uppers
US1587823A (en) Machine for working uppers over lasts
US1163597A (en) Lasting-machine.
US950179A (en) Pulling-over machine.
US1963170A (en) Lasting machine