US251430A - Lasting-machine - Google Patents

Description

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LASTING MAOHINE.

No. 251,430. Patented Dec. 27,1881.

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LASTING MAOHINE. No. 251,430. Patented Dec. 27,1881.

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O. W. GLIDDEN.

LAS'TING MA CHINE.

Patented Dec. 27,1881.

. 4 Sheets-Sheet 4. G. W. GLIDDEN.

LASTING MAOHINE. 1 No. 251,430. Patented Dec. 27,1881.

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LASTING-YMACHINE.

SPECIFICATION forming part of Letters Patent No. 251,430, dated December 27, 1881.

Application filed April 30, 1877.

To all whom it may concern:

Be it known that I, CHARLES W. GLIDDEN, of Lynn, in the county of Essex and State of Massachusetts, have invented an Improved .Lasting-ll/Iachine, of which the following is a tween the toe and heel, at each side, are ar-- ranged side-lasting devices, shown as-com posed-of fingers. These fingers are arranged to turn upon their axis, to rise and fall, and to be adjusted horizontally to adapt them to the curve of the last-bottom. The machine in its organization includes a belt or girth adapted to act gradually upon the vamp and stretch and draw it about the last, and cooperating therewith are toe and heel-and side lastiugdevices, adapted to bear the edges of the upper (then stretched about the last and held by the girth or band) horizontal y over upon the innersole. At the commencement of this operation the bottom of the last and the fingers or side-lasting devices and the heel and the toe lasting plates occupy such position with relation to each other that the bottom of the last rests at a level above the level ofthe said sidelasting devices and toe-lasting plates; but at the completion of the operation the sole occupies aplace brlow the said devices. The girth is so held and operated as to touch the vamp substantially on, at, or near a linedrawn from the toe along the vamp, covering the top of the foot portion of the last, (a line denomi nated by me as the media-nlinefl) andto thereafter bear with greater force upon the said vamp from t-he'said median line tothe edge of the lastbottom, thereby gradually drawing the vamp from the said median line toward the edge of and fitting it to the last, after which the edges of the upper, projecting above the last and inner sole, are turned over upon the inner sole by side-lasting and heel and toe lasting devices.

Figure 1 represents in side elevation a machine embodying my invention; Figs. 2 and 3, end views thereof; Fig. 4, a plan with the side and heel and toe lasting devices at their innermost positions Fig. 5, a form of arm to support the belt; Fig. 6, a. section showing side and shank lasting mechanism Fig. 7, a detail showing one form of the elastic portion of my belt or girth Fig. 8, a detail of the device for holding the heel of the upper against the heel of thelast; Fig. 9, a detail of cam h and disk '0'; and Figs. lOand 11, forms of belts or girths, to be hereinafter described.

The frame a of the machine is of suitable shape to properly sustain the working parts. The driven shaft b, operated by a belt upon pulley c, has a pinion, d, that engages a toothwheel, 0, on the'main shaft, which latter rests in bearings f, and has attached to it a camgrooved hub, g, a cam, h, and a disk, a, provided on its periphery with a toe, j, and on its face with a pin and roller, 70. The cam g operates the lever l, provided with an elongated central slot m, that receives a fulcrum-block, a, mounted loosely on a stud, 0, made vertically adjustable with the block in the slot 1), to change the fulcrum of the lever l and alter the throw of its upper end, and of the sliding head r, adjustably connected by the screw 8 with the carriage t, which is thus reciprocatedby this lever. This carriage it, moved in guidways n, has a concave upper face, to which is fitted the convex lower surface of a frame, '1), adjustably attached thereto by set-screws 20. These concave and convex surfaces permit the frame n, with its attached devices to last the toe, to be adjusted in the arc of a circle to place the toe-plate 2 in such position with relation to the toe of the last as to move over it, whatever may be its curvature.

The toe-platesare of such shape that when closed their edges conform to the shape of the toe ofthe last, the plates, when closed, lapping over the lastand inner sole. These plates are attached at the ends of levers w y, the former pivoted at 4 and the latter at 5. The plate of I00 each lever operates upon that side of the toe opposite the side of the toe at which its lever is pivoted. This construction enables the plates to sweep from a point outside the last toward its center, at an angle approximating forty-five degrees, which permits the upper to be drawn evenly and very close at the toe, and at the sides of the last near the toe, over the edge of the last, thereby drawing in the upper toward the center of the last.

The levers any are connected by links 7 with pins on a hand lever, 8, having its axis at 9.

- forward into the position shown in Fig. 4. Af-

ter the shoe is lasted the cam gand lever lact to move the carriaget and its attached devices a little in the direction of the arrow, Fig. 4, and then the operator moves the lever 8 and withdraws the toe'lasting plates from the toe, and at the same time the link 11 acts to move forward the toe-wiper 13 beyond the edge of the separated plates 2. Just before the next shoe is to be lasted the carriage t is moved forward to place the toe-wiper in line with the toe of the last, so that the upper at the end of the toe will strike against the wiper, and be drawn by it closely and snugly over the last, just before the toe of the last comes into the seat 14, andjust before the plates 2 are operated or moved forward to press over the edge of the upper, as before described.

By means of the screw 8 the toe-lasting devices may, for lasts of differentlen'gths, be removed more or less from the last supporting pin. The cam h (see Fig. 2) strikes the lower end of the lever 18, carrying the head-19,.provided with the longitudinally and vertically adjustable and rocking fingers 20, constituting the side-lasting devices. These fingers are preferably curved, and roughened attheirouter ends to engage the upper and retain their engagem'ent with it as they are moved toward the center of the last. Fig. 6 shows a finger and head in end view.

The shank of each finger is fitted to an ad justable holder, 21, where it is confined by a set-screw, 22, the latter permitting the lower face of the finger to be placed at the proper level to correspond with that surface ofv the last immediately above or over which it is to work. These holders 21 have stems fitted into sockets in the head, where they are adj ustabl y held by set-screws 23, they permitting the fingers to occupy such positions with relation to each other and the surface of the bottom of the last as to conform to the curved and other portions of the last from its toe to its heel.

The longitudinal adjustment of the fingers in the holders permits theforward acting edges of the fingers to be placed in a line to conform with the outline of the edge of the last, whereby all the fingers may operate upon the upper simultaneously, or, if desired, sooner at some portions thereof than others. So, too, by adjustments of the fingers opposite the shank of the last, they may bemade to move to a point nearer the center of the last than the other fingers, thereby facilitating lasting the shank closely, this being of special service when lasting rights and lefls. The opposite head, 24, mounted on lever 25, has a set of fingers like those described as moving with head 19. Lever 25 is vibrated by means of a pin, 17, projecting from the inner face of disk 2'. (See Figs. 2 and 9.) These fingers are not moved horizontally forward to crowd or push the edges of the upper over the edge of the last until after the bottom of the last occupies such a position with relation to the fingers as to be lower than the fingers. Then the fingers close over the last. The notches at the ends of the fingers permit tacks to be driven back from the ends of the fingers. These notches may be of more or less length, long notches being preferably employed in the fingers, especially at the shank, to permit the tacks to be driven back from the center of the shank.

The arm 32, having its fulcrum at 33, has

its forward end, fore and back part downholds or pressers, 34-. 35, shown as adjustably a ttachedthereto, and adapted to bear upon the heel, and the forward or toe portion of the last or inner sole thereon, to seat the last and its upper upon the toe-rest or other support for the last, and place the bottom of the last at the proper level for the correct operation of the side and heel and toe lasting devices. When the carriage is descending and the bottom of the last and side-lasting devices are being brought to such level as to permit the sidelasting devices to be moved horizontally over and beyond the edge of the last and toward itscenter, the arm 32 is held rigidly by the pawl 36, it then engaging a notch, 37, in a link, 38, connected with a stud or pin, 39, fitted in a slot, 40, at the rear end of arm 32, the opposite end of the link being connected with a hand-lever, 42, moved in one direction by a spring, 43. The arm 32, held rigidly, causes the fore and back part pressers or downholds 34 35 to press upon and position the bottom of the last. After the side-lasting devices have completed their inward movement a pawl-litter, 44, frees the pawl 36, permitting the spring 43 to throw back the lever 42 and the stud 39 from above the bracket 41. At this stage of the operation the parts are as in Fig. 3. R0- tation of the main shaft from the position shown in Fig. 3 will draw the side and the toe lasting devices away from the last and upper and lift the. carriage, it carrying with it the jack 45, having a lever, 46, pivoted to it at 47.

The lever 46 is provided with a hinged lastholding pin, 48, (shown in dotted lines Fig. 2,) which is held upright by a spring, 49, pressing upon a headpiece forming part of the pin 48 below its pivot. As the carriage and jack are lifted the last is also lifted above the side and the toe lasting devices, and the arm 32 is then thrownover backward on its pivot 33, when the last may be removed and another shoe and vIIO moval of the last and shoe.

last be substituted for it. A screw, 50, on the jack permits the adjustment of the lever 46 thereon to place it and the last-holding pin at the proper position with relation to the heellasting devices, to thus compensate for variations in position with relation to the heel of the last of the hole made therein for the reception of the lastholding pin. 1

' The jack is supported upon a rod, 51, provided at bottom with a screw-thread, 52. The screw-thread 52 is engaged by an inclined screw-thread ofa bevel-pinion, 53, which is engaged by a bevel-gear, 54, on a shaft, 55. The shaft 55 is adapted to be operated by hand to rotate the pinion 53 when it is desired to raise or lower the rod 51 and place the top of the jack-lever 46 and the last thereon at the proper height with reference to the devices to operate upon the edge of the upper. A slide, 56, is lifted by the toej, (see Fig. 1,) and acts against the end ofan adjustable screw, 57, of the jack, just as the side, heel, and toe lasting devices are fully contracted, to lift the jack a little and press the turned-over edge of the upper and inner sole and last closely together, a portion of the eamegroove in the cross-head 2S afl'ording sufficient space to permit the movement of the carriage upward independently otthe roll it.

A bracket, 58, on the carriage 29, has pivoted to it a lever, 59, provided at its top with a concaved seat, 60, to which is fitted a block, 61, having pivoted arms 62 63, provided with heel-lasting plates or slides 64 65, adapted to operate with reference to the heel, substantially as described, of plates 2 in connection with the-toe. These pivoted arms 62 63 are provided with friction-rollers 64, that act upon inclines 65 on the heads 19 and 24, when they are closed, and while the lever 59 moves in the direction of the arrow in Fig. 1, thereby operating the arms and moving the plates against the edge of the upper at the heel, so as to turn such edges over at that point. As the carriage rises the lower end of the lever 59 passes above the roller 66, and the spring 67 moves the lever 59 and the heel-lasting portions away from the heel of the upper and last, to permit the re- As the carriage descends, the inclined outer surface of the lever'59 also meets the roller 68, and it and the roller 66 force the lever forward, so that a heelholder, 69, composed ofa-piece of metal curved to the shape of the heel end of the last, and connected with a piece of rubber, 70, is pressed closely against the upper on the heel of the last just before or as the toe of the vamp or uppers is being wiped or rubbed by the toe-wiper, and

just in advance of the action of the heel-plates kept pressed closely in contact with the upper on the last by a portion, 71, herein shown as composed of indie-rubber of suitable shape to assist in pressing the inelastic portions 91 against the upper as the last is forced down by the downholds or pressers acting on the inner sole on the bottom of the last. The inelastic portions 91 are so shaped and held as to first come in contact with the upper on the last substantially at or near this median line, and then to gradually move along over and stretch and press and draw and fit the upper closer and closer to the las drawing it from the median line toward the opposite edges of the inner sole, and holding it until after the action of the sidela'st-ing devices upon the edge of the upper, they sliding over the last opposite and at or near the end of the girth, it terminating at or near the level or line of action of the side lasting devices.

' Fig. 11 shows in' elevation a form of girth which I prefer to use. The said girth is shown as composed of a yielding portion, 71, and of portions 91, of leather, canvas, or practically inelastic material, to bear directly against the reference to the upper, and it thus develops an amount of friction and consequent drawing and stretching on the upper which it could not attain it' it touched only at one point or over a short area, while at the same time the constant pressure which it exerts over the whole length of both its elastic and inelastic portions continually presses the upper against the last, and prevents the upper from slipping back, by accident or otheruise,and losing the stretch so 'obtained. The force of the friction exerted by the inelastic portions of the girth is measured by theupwaid pressure of the snpporton which the said inelastic portions rest, or the elasticity of the elastic portions of the girth.

Fig. 7, in end view, shows the elastic portions 71 ol'a beltor girth stretched across hinged arms 72, which may be provided each with a pivoted dog, 73, as in Fig. 7, or with a roller, 74, as in Fig.5. Fig. 10 sh'ows a modified form of girth which I devised, but do not herein claim, as I have made it the subject-matter of another application divided off from this one, andfiled June 6, 1879.

The central portion, 90, of this girth, Fig. 10,

is thickened transversely to bear against the act level with relation to the side-lasting and heel and toe lasting devices. The arms carrying the toe-plates or toe-lasting devices would be operated at suitable times.

In the operation of this my present machine it will be noticed that the bottom of the last, at the commencement of the lasting operation, occupies a certain relative position with rela= tion to the side and the toe lasting mechanisms or devices, and that at or near the completion of the stretching and drawing operation of the inelastic portions of the girth upon the upper the bottom of the last occupies a different relative position therewith-viz., a position such that the side-lasting devices and heel and toe lasting devices are above the plane of the bottom of the last, and the last is automatically and mechanically held in a fixed position at the level predetermined for it to occupy before the side-lasting devices or toe and heel lasting devices operate to lay the edges of the upper over upon the inner sole on the bottom of the said last.

I am aware that a sole-shaped plate held at or near its center has been laid upon theinner sole on the last, and by a foot-operated treadle has been made to bear the last and upper thereon down while being lasted, so I do not claim a presser orholddown,except when each is made separate from the other, and each bears only upon a small portion of the inner sole before and back of its shank.

I am aware thatlasting-machines were made by Shailer and Ethridge in 1862 and 1863, which machines were put in evidence in the interference case wherein myself and said Shailer and Ethridge were parties, and I do not claim the things contained in said machines which were introduced in evidence in that interference case, such things being public property; but

I do claim as follows, viz:

1. In a lasting-machine, the combination, with devices to lastthe sides of a boot or shoe, of heel and toe lasting plates pivoted at opposite sides of theline from which the plates approach each other, and adapted to be reciprocated in a path in an angle of about forty-five degrees to a line drawn through the center of the last from heel to toe, whereby the upper at the heel and toe is crowded or pushed over uniformly from the outside of the upper toward the center of the last, substantially as described.

2. In a lasting-machine, the combination, with side-lasting devices, of a belt or girth adapted to bear upon the vamp, and by its inelastic portions to stretch and draw the upper to the last, as the relative position of the lastbottom and the side-lasting devices is changed vertically during the lasting process, substantially as described.

3. In a lasting-machine, the combination, with side-lasting devices and horizontal reciprocating heel and toe lasting slides or plates, of a girth or band adapted to operate upon the vamp to stretch and draw it about the last, substantially as described.

4. In a lasting-machine, a girth adapted to bear against the upper to yield at or near the median line of the upper and by its inelastic portion to press and draw the upper over the sides of and fit it to the last, substantially as described.

5. A girth with its upper end held substantially at the level or line of action of the sidelasting devices, combined with a last and with independent fore and rear part downholds or pressers to hold the inner sole and the last at or near each end of the last while the girth draws the upper and fits it to the last.

6. In a lasting-machine, the last and its support and the independent separate fore and back downholds to hold the inner sole upon the last and cause the last to assume and maintain its proper position vertically with relation to the horizontal or closing-in movement of sidelasting devices during the time the upper is being acted upon by the belt or girth, combined with a girth adapted by its inelastic portions to bear upon and stretch and draw the upper closely about the last during the lasting operation, substantially as described.

7. In a lasting-machine, fore and rear part downholds or pressers, a last, and a girth adapted to bear upon and stretch and draw the upper about the last as the last and girth by their change of position vertically with relation to each other are forced in close contact, combined with side-lasting devices adapted to be moved horizontally over and toward the center of the bottom of the last to press the edges of the upper extending above the bottom of the last at its'sides over upon the inner sole upon the last, substantially as described.

8. In a lasting-machine, a rigid head, 19, a series of side-lasting devices and their vertically-adjustable holders 21,. the side-lasting devices being held in the holders, so that they may be oscillated as required to permit some of the said side-lasting devices at the side of the last to be adjusted to different heights and inclinations to conform to the variations in the curvature of the bottom of the last, substantially as described.

9. Vertically-adjustable fingers adapted to be'moved horizontally over the last-bottom, in combination with a girth to operate upon the vamp or fore part of the upper and stretch it about the last, substantially as described.

10. In a lasting-machine, a series of adjustable fingers adapted to conform to the lastbottom, and mechanism to move them, in com. bination with heel and toe lasting plates and with a girth to fit the upper about the last, substantially as described.

11. The combination, with toe-lasting plates, of a toe-wiper, to operate substantially as described.

12. The lasting-plates 2, incombination with their carrying-arms, having their pivots on opposite sides of the line from which the plates approch each other to turn over and crimp the stock, substantially as described.

13. In a lasting-machine, two independent adjustable fore and rear part downholds or pressers to bear upon the inner sole each side its shank toward its toe and heel, and a girth or belt having independent inelastic portions which, when pressed against the upper, act by their friction thereon as they are dragged .over the upper to draw and stretch the upper from its median line toward the edges of the last and by their contact with the upper retain it stretched while the edges of the upper are being turned over upon the inner sole.

14.. In a lasting-machine,heel and toe lasting devices and independent pressers or downholds to bear upon the inner sole on the bottom ofthe last, and a girth or belt having independent inelastic portions adapted, when pressed against the upper on the last and dragged over the upper from its median line in each direction toward the sides of the last,to draw and stretch the upper about the last, substantially as described.

15. In a lasting-machine, pressers or downholds to rest upon the fore and back part of the last, and mechanism to automatically force them down while fitting the upper about the last.

16. In a lasting-machine, a girth adapted to bear upon and stretch and draw the upper about the last, and a support to which the upper end of the girth is secured at or below the line of movement of the side lasting devices, and side-lasting devices to operate substantially as described.

17. In a lasting-machine, fore andback part pressers or downholds to bear upon the inner sole upon the last, and a pin to support the last, combined with devices to grasp the heel of the upper, and heel-crimping plates or slides, made vertically movable therewith with relation to the toe and the side lasting devices,

substantially as described.

18. In a lastingmachine provided with a girth and with side and heel and toe lasting devices, mechanism to move the inner sole and last and side-lasting devices vertically with relation to each other after laying the edges of the upper over upon theinner sole, to thereby press the said turned-over edges of the upper closely down upon the inner sole while the upper and inner sole are being secured together, substantially as described.

19. In alasting-machine, automatic devices for forcing a last downwardly with relation to side and toe lasting devices, combined with a girth to stretch and draw the upper about the last preparatory to turning its edges over upon the inner sole.

20. Rigid heads 19 and 24, combined with removable fingers or side-lasting devices and a girth, the fingers being adapted to crowd over the edges of the upper after the latter has been fitted to the last by the girth.

21. In a lasting-machine, rigid heads 19 24,

side-lasting fingers carried by and moved hori-.. zontallyin unison with the said heads, and

made independently adjustable transversely to the width of the last to permit some of the fingers to approach nearer than others to a center line drawn horizontally from the heel to the toe of the last.

22.The lever 59, inclined at one edge, in

combination with a roller, 68, to crowd the heel-lasting devices forward, substantially as described.

23. The jack andlast and toe and heel lastingdevices, in combination with mechanism to of the upper over upon the inner sole, substantially as described.

24. The combination, with the verticallymovable carriage, jack, and last, of a last-positioning lever provided with downholds 34 35, to bear on the inner sole as the carriage descends, substantially as described.

25. In a lasting-machine, a jack provided with a pin to enter an opening in the heel of automatically lift the last after turning the edge and to support the last, combined with a rear- 0 part downhold to bear upon the inner sole near the heel of the last, preparatory to the action of the toe-support and toe-lastingdevices upon the upper and last at or near the toe thereof, substantially as described.

26. A pivoted last-pin to enter a hole made at the heel end of the last, and mechanism to bear the heel portion of the upper against the heel of the last, combined with a downhold to operate upon the inner sole at the heel end of the last and maintain the last-bottom at the proper level preparatory to the act-ion of the toe-support upon the toe of the last, substantially as described. 4

27. In a lasting-machine,inelastic orleather portions, substantially as described, adapted by their friction on the upper about the top of the foot of the last to stretch and draw the upper closely about and fit it to the foot part of the last, toe-lasting plates, independent fore and rear part downholds, and a toe-wiper to act upon the upper at its toe and wipe or draw it over the toe of the last, substantially as and for the purpose described.

28. The fore-part downhold to operate on the inner sole on the last, and toe-lasting devices to act upon and turnover upon the inner sole the toe of the upper, as described, combined with a toewiper and means to actuate the same positively in the direction of the length of the last, for the purposes substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES W. GLIDDEN.

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