US211148A - Improvement in lasting-machines for boots and shoes - Google Patents

Description

3 Sheets-Sheet l.

Patented Jan.

C. W. GLIDDBN. L@L sting-Machille for Boots and Shoes.

N. PETES. PHOTO-LIYHOGRAPHER, WASHINGTON. D. C.

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O. W. GLIDDEN. Lasting-Machine for Boots and Shoes.

Patented lan. 7,1879.

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NPTERS. PHOTO-UTHDGRAFHER. WASHINGTON, D` C.

3 SheetsA-Sheet 3,.

` C. W. GLIDDBN Lasting-Machine for Boots and Spas,

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x/E H11 QM ./4. %Wy 17 NPETERS, PHOTO-LITHOGRPNER. WASHINGTON, D, C.

UNITED STATES PATENT OEETcE.

CHARLES W. GLIDDEN, OF LYNN, MASSACHUSETTS.

IMPROVEMENT IN LAsTlNG-MACHINES Eos BooTs AND SHOES.

Specification forming part of Letters Patent No. 211,148, dated January 7, 1879; application tiled November 29, 1878.

To all whom t may concern:

Be it known that I, GHAs. W. GLIDDEN, of Lynn, county of Essex, State of Massachusetts, have invented an Improvement in Lasting-Machines for Boots and Shoes, of which the following description, in connection with the accompanying drawings, forming a partv the inner sole placed on the last-bottom.

When one operator manipulates the machine 'to fit the upper to the last, another operator secures the upper and inner sole of a shoe previously lasted, and then removes the last and p, shoe.

The upper .is held stationary by suitable upper holding devices adapted to grasp its edges, and then the last and upper are pressed together until the upper is made to lit the last snugly, and then the jaws or lasting devices move toward the last and push or crowd the upper over the inner sole and lastbottom, while the upper is held by the upperholding devices.

When the strain upon theupper is sufficient to lay it snugly in contact with the last, the upper-holding devices are made to automatically relcase it.

The inner sole is shown as adapted to be placed in position upon the last by adjustable pins, which enter holes in the inner soles, and also in the bottom of the last.

Figure l represents, in side elevation, part of a lasting-machine constructed in accordance with my invention. Fig. 2 represents the part broken away from Fig. l. Fig. 3 represents a detail of the walking-beam to operate the soleplate, and the pressers or down-holds to force the last downward at its fore and rear part-s; Fig. 4, a view `of one form of plate and upper-holding device to hold the upper at its edges; Fig. 5, a longitudinal section through the last, and heel and toe lasting devices Fig. 6, a top view of the lasting devices, showing the' side lasting jaws and heel and toe lasting jaws closed about the last; Fig. 7, a detail of the rotating ratchet-wheel, to intermittingly operate the main shaft of the machine; Fig.

S, a detail of an upper-holding device and a yielding spring to permit it to release the upper at the proper time. Fig. 9 represents a modified form of side and shank lasting devices, it showing a series of adjustable fingers to crowd the upper `over the last at the side and at the shank; and Fig. 10, a detail of the lower end of the rod to which the last holding pin is pivoted.

The main shaft a., mounted in the frame b, of any suitable construction, has an attached arm, c, provided with a pawl, d, which is acted upon to drive the shaft a at the proper times by a shoulder, k1, of a ratchet-wheel, f, placed loosely upon the shaft, 'but driven at all times positively by a pinion, g, on a shaft, 71., provided with a fast and loose pulley of ordinary construction. This pawl is disengaged at each revolution of the shaft a by means of a pawllifter, Q', that, striking the short end of the pawl, moves it out of engagement from notch 7a and against the pressure of the spring (i2. This pawllifter i is attached to a rod, jz, cX- tended through a bearing, ja, the rod being connected by a link, jt, with a shipper, j, the latter and the link being shown in dotted lines, Fig. 1. A spring, j, moves the rod jz toward the wheel f.

The pawl-lifter may, when desired, be moved laterally from contact with the pawl, and then the pawl will rise under the action of the spring i2, and the wheel will again engage it and move theshaft.

The shaft a has two disks, l; but they might be cranks or eccentrics, connected by links m, with rods n attached at their upper ends, with the opposite ends of a walkingbeam, o, provided at or near its center with adjustable boxes p, containing the pivots fu of the pressers or down-holds q g', having within them, as therein shown, sliding rods r s, which, at their lower ends, carry a sole-plate, t.

The rods 1' s are held within the pressers q q with sufficient friction to prevent them from descending unless moved positively.

The lower ends of the rods extend sufficiently far through holes in the sole-plate to permit the inner sole to be impaledl upon the ends 19 20 of such rods, they constituting pins to hold the inner sole. When an inner sole is--placed upon these pins the sole-plate is l drawn down by handuntil the ends of the last, and hold it there until after the devices that push the upper over the inner sole pass a little way over the edge of such inner sole.

The block 3 is herein shown as prolonged through the last, where it is provided with a hole to receive the last-pin d, pivoted upon a supporting-rod, el, having its pivot at f1. The lower end of this rod, slotted to receive the pivot f, rests upon an india-rubber or other spring, f2, (see Fig. 10,) to permit. the rod to descend a sufficient distance to insure the descent of the inner sole and last far enough to permit the lasting devices to pass over the edge of the inner sole. Inner soles vary in thickness, and this spring f2 compensates for this variation.

The rod e1 has its pivot in a hanger, 91,0011- nected with a rotating head, h1, pivoted on a vertical pivot, i1,in this instance made hollow for the passage of the rods n. This head carries at each end lasting devices, of usual construction, to crowd the upper at thesides, and shank, and heel and toe of the shoe over upon the inner sole.

In Figs. 1, 2, the jaws j6 are pivoted at 7c, and connected at their lower ends by a toggle-lever, Z1, having an elongated connecting-pin, 11.

The jaws j in Fig. 1 are provided with curved plates al al, to perform the side and shank lasting. Instead of ythese plates the jaws may be providedwith a series of adjustable fingers, x3, as shown in Fig. 9, and fully described in another application made by me, and filed April 430, 1877, to which reference may be had. These fingers x3 will preferably be used. They are slotted, and bear upon the upper to crowd it over the edge of the inner sole. They are made adjustable horizontally and vertically, to adapt them to the varying curvature of the sole and last-bottom.

The toe and heel lasting devices are represented at c1 bl. They are composed each of two blades, one overlapping the other, and carried by pivoted arms. Each arm has a friction-roller, 4, which is struck by the upper ends of the jaws when they are closed. The side jaws in closing moveA the toe and heel lasting jaws to crimp the heel and toe of the upper over the last.

f The two lasting-jaws are pivoted at d4 upon a rest-plate, e4, adjustably connected with the basef4 by means of a screw, g4, and this base is made adjustable horizontally by means of a screw, a4.

The heel-lasting jaws, pivoted at h4 upon a rest-plate, i", are adjustably connected by screws 7a4 with the basej4, made adjustable on the frame h1 by means of suitable bolts b4 and screws e4.

The adjustments of the heel and toc lasting jaws horizontallyr permit them to operate upon lasts of'diiferent lengths, and the adjustment between the rest-plates and their bases permits the jaws to adapt themselves to lasts of different curvature.

The block c3 is adjustably cnnected, by screws 14, with an adjustable collar, 17, adapted to be raised or lowered by a screw, 15, in a part, 16, of the frame. This block a3 is so made adjustable that it may place the pivot p of the plate o in proper position with reference to the lasting devices. This plate o has the upper-holding devices 5 6 7, made as levers or dogs, controlled by screws S or eccentrics or toggles, so as to engage the edges of the Lipper, and hold the upper at the toe and ball part ofthe vamp firmly while the last is operated upon by the pressers at points each side of a line drawn transversely across the last, said pressers acting, the one g as a forepart presser or down-hold, it operating upon the last or inner sole at or near the toe thereof, and the one q as a back-part presser, it operating upon the last or inner sole at or near the heel ends thereof. These upper-holding devices are adapted to hold the upper with a certain amount of force, and then to yield and release the upper. In this instance, the screws rest against spring-pressed plates 18, held up by springs 19. (See Fig. 8.)

The upper-holdin g devices are made adjustable horizontally in their brackets 24 by means of elongated slots therein, (see Fig. 1,) which permits themto be moved forward over the upper laid upon the plate o', which is handier than to draw the upper under their ends.

It is obvious that the standards 24 might be made adjustable .on the plates, instead of moving the upper-holdingl devices in the slots of the standards.

The toe-seat of the toe-lastin g device is lined with india-rubber, as at 21, to permit the last to descend the proper distance, notwithstanding variations in the thickness of the uppers. The ratchet e, fixed to the side of the wheel f, if engaged with the long end ofthe pawl d,

may be made to move the shaft a when its motion is to be reversed to turn the machine back.

In operation the upper is grasped or seized by the upper-holding devices. The last is placed within the upper. The sole-plate, with an inner sole applied, is drawn down until the ends of the rods enter the holes in the blocks 2 3. In this position the toe of the last is ahead of the position it will occupy at thecom pletion of the lasting operation, and the pressers q Q are substantially vertical. N ow, the machine Narted. The walking-beam o descends untn .he ends of the pressers or downholds g q meet the sole-plate, and then the farther descent of the beam and pressers crowds the last down into the upper held by the up-y per-holding devices.

The lpressers q q are independently adjust. able laterally by means of the bolts m4, and vertically adjustable by moving the end portions fw along the ,screwi portion 14,-which permits both the toe and heel or'forel and back part `of the last-bottom to be pressed to the proper level with relation to the movement of, and hold such last-in correct position for the operation of, the jaws or fingers, which crowd, iit, or stretch the upper about the last and inner sole. As the last is pressed down it is crowded backward by its action against the upper held by the upper-holding devices. The pressers turn on the pivots c during this backward movement of the last and assume an inclined position. When the upper has been strained sufficiently to fit it closely to the last the side and heel and toe lasting devices are made to approach the last and press the upper just over the edge of the inner sole. At this time, or later, the upper-holding devices may release the upper, accordin gto the amount of stra-in to which it is desired to subject the material, this being governedby the quality of the material, its thickness, and the closeness of the lasting. Just as the lasting devices pass over the edge of the last the plate and pressers are raised from contact with the inner sole by the rising of the walking-beam,

and then the lasting devices arecompletely closed.`

The jaws je are closed by the action of j a forked slide, m1, lifted by a cam, n', on shaft a, the fork of the slide engaging the pin ll and straightening the toggle Z1.

When the sole-pressers are lifted and the jaws are closed, the rotation of the` shaft is stopped by the pawl-lifter 't'. The bolt r, connected with the lever s', is then withdrawn,

'unlocking the head 111, so that it may be rotated to bring its opposite enclin position under the walkingbeam and sole-presser to receive another upper.

The end of the head containing the jaws that hold the shoe-upper and inner sole just operated upon is, by the rotation of the head, brought `to the opposite side'of pivot il, or into the position shown in Fig. 2.

Referring to Fig. 2, it will be seen that the pin 1l of the togglejoint stops underthe hook l0, connected with the treadle 12, and is held up by a spring, 22. A second operator at this end of the head secures the upper and inner sole by suitable fastenings, nails, or pegs, and then depresses the lever, causing the hook l0 to spring the toggle and permit the jaws to move away from the upper, so that the lasted shoe may be withdrawn from the machine. In this way one operator may fit the upper to the last, and then rotate the head for another operator to secure the upper and inner sole together, and withdraw the lasted shoe, leaving the jaws ready to again receive an upper and last within them. The upper is drawn about the toe very closely, the slight backward motion of the last away from the dog 5 assisting in this operation. D

The upper-holding devices will preferably release the upper just as the lasting devices begin to crowd the upper over the inner sole.

The toe and heel lasting devices are made longitudinally` adjustable to adapt them to lasts of different lengths, and in the arc of a circle to adapt themto lasts of varying slopes at heel and toe, substantially as in the American lasting-machine. The side jaws may be provided with india-rubber faces, as in the American lasting-machine. A

Considerable pressure has to be exerted to properly crowd the last into the upper held by the upper-holding devices; and it is quite essential to the complete and perfect operation of the machine that each end of the walking-beam be operated positively so as to place the`last in proper position for the passage of the jaws or` fingers over the last and inner sole. If the head should `spring the last-bottom would not be placed in correct position. A walkin g-beam raised and lowered at one end only might be used; but it would have to be made heavier than if operated at both ends, which would unnecessarily increase the weight of the beam and the power required to operate the machine.

The fore andback part pressers q q' may operate directly upon the inner sole resting upon the last to place itin correct position, as described, and the sole-plate may be omitted. The pressers move vertically to and from the last-bottom, and press it down at each end upon the support of the last, the presser and support co-operatin g to place the last-bottom, whatever may be its curvature, in proper relation with reference to the path of movement' of the lasting devices. i

It is obvious that the pressers would operate to place the last-bottom at the proper level in a machine in which the last was stationary, and the lasting jaws or devices which operated upon the upper to lit it to the last had a rising and falling motion.

From the above description it will be observed, at the commencement of the lasting operation, that the lastbottom occupies a position above the horizontal plane of 1novement of the side-lasting devices; that the upper is grasped and held at its edges by upperholding devices placed substantially at the level of, or just above, the line of thehorizontal or closing-in movement of the side-lasting devices; and that the last and side-llasting devices are then so moved, one with relation to the other, vertically as to place the bottom of the last and inner sole thereon in a plane below the lasting portions of the side-lasting devices, after which the side-lastin g devices are moved toward the center of, and horizontally over, the bottom of the last and inner sole, crowding the edges of the upper over upon the inner sole, the heel and toe lasting devices also crimping the heel and toe of the upper over upon the heel and toe ends of the inner sole.

In this application 1 have shown and described certain fore and rear part down-holds and upper-holding devices; but I do not herein broadly claim either of the said devices or their combination, for the said devices are con tained and claimed in another application made by me and led in the United States Patent Oftice, April 30, 187 7 I claim- 1. In a lasting-machine, the adjustable pins to hold the inner sole to enable it to be placed upon the last, substantially as described.

2. The pins and sole-presser, combined with rocking sleeves, to operate substantially as described when pressing` the last upon the upper.

3. The adjustable pins and sole-presser, in combination with a last provided with sockets to receive the pins, substantially as described.

4. In a lasting-machine, fore and back part pressers to place a last-bottom in proper position with relation to lasting devices or jaws, combined with mechanism to adjust the toe or heel lasting jaws, or both of them, horizontally, to adapt them to lasts of varying lengths.

5. In a lasting-machine, the combination,

l with a pivoted lastholder and last, of mechanism to hold the upper, and mechanism to press thev last down into the upper, the last movin g horizontally downward and backward, substantially as described.

6. In a lasting-machine, the combination, with a last and upper-holding device to hold the upper at its edges, of independently-mov able side-lastingdevices and toe-crimpin g jaws, or slides interposed between the upper-holdin g devices and the edge of the last to force about the edge of the inner sole the upper, it having been suficient-ly stretched, substantially as described.

7 In a 'lasting-machine, a rotating head and two sets of lasting devices, adapted to crowd the upper horizontally over the bottom of the last, one set being in position to be operated to it the upper to the last and inner sole when the other is in position to permit the upper and inner sole, held by the lasting devices, to be secured together preparatory to removing the lasted shoe from the machine, substantially as described.

8. In a lasting-machine, the vertically and horizontally movable rods o s, adapted to receive upon their ends the inner sole and place it upon the' last, combined with fore and back part down-holds, substantially as described.

9. The sole plate or presser, combined with pivoted fore and back part pressers or downholds, to operate substantially as described.

10. In an organized lasting-machine provided with fore and back part down holds and shank and toe and heel lasting devices, the combination, with the main shaft, of mechanism under the control of a treadle to set a shaft in rotation, and mechanism to automatically stop the rotation of such shaft after each rotation, substantially as described.

l1. In a lasting-machine, the combination, with toe and side lasting devices to crowd the edges of the upper over upon the inner sole, ofpivoted pressers or down-holds, adapted to bear upon the inner sole at the front and rear part of the last, and move backward with the last as it is being itted closely into the upper, substantially as described.

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

CHARLES W. GLIDDEN.

Witnesses:

L. F. CONNOR, N. E. WHITNEY.

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