US320849A - chase - Google Patents

Description

(No Model.) l l 2 sheetssheet 1.

E. CHASE. MAINEI FOR UNITING SOLES T0 UPPERS 0E BOTS AND SHOES.v No. 320,849. Patented June 23, 1885.

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F. CHASE. MAOHINE 'POR UNITING SOLES T0 UPPERS OP BOOTS AND SHOES. No-l 320,849. y PaltentedJune 28, 1885.

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NrTrJD STATES ATENT FRANK CHASE, OF BOSTON, MASSACHUSETTS, ASSIGNOB TO CHARLES F.

JOHNSON, OF SAME PLACE, TRUSTEE.

IVIACHlNE FOR UNITING SOLES TO UPPERS OF BOOTS AND SHOES.

SPECIFICATION forming part of Letters Patent No. 320,849, dated June 23, 1885.

Application filed March 28, 1885. (No model.)

To @ZZ whom, it may concern,.-

Be it known that I, FRANK CHASE, 'of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Machines for Uniting the Soles and Uppers of Boots and Shoes, of which the following is a specification.

The machine in which my present invention is embodied has been devised with more particularreference to the needs of the method of uniting the soles and uppers of boots and shoes described and claimed in my Letters Patent No. 293,145 of February 5, 1884; but with obvious modifications it is applicable to other methods of uniting said parts.

The method set forth in my aforesaid Letters Patent contemplates forming holes in the parts to be united by punching out portions or' the same, then passing a cord or thread over such holes, and then forcing the removed portions or cores back into the holes, carrying with them the overlaid cord or thread, thus forming a continuous line of fastening.

In Letters Patent No. 293,147 I have shown and described a machine for effectuating said v method, characterized by the combination of a punch for cutting the holes and removing the cores, a driver working Within the punch and operating to expel the core therefrom, and to return it into the hole, and a cord or thread guide arranged and operating automatically and at the proper times to remove the thread from the path of the punch and to present it to the driver. In said machine the driving and punching mechanism had no capacity for' adjusting themselves to the irregularities of the last, or of moving over the surface of the same, and it was contemplated to move the last along under the said mechanism.

In my present improved machine I retain the general characteristics of my patented machine above referred to; but I contemplate using the machine with a stationary last, held, for instance, in a lasting machine such as shown and described in my pending application for Letters Patent tiled March 11, 1885, bearing Serial No. 158,468; and I therefore so mount and arrange the punching and driving mechanisms that it can not only move over the face or sole of the last, but can coliform to all its irregularities of outline and surface.

The characteristic of the improved machine is that the head-stock, in which the driver and punch are mounted, is carried by a swinging arm, with capacity for movement upon three axesa vertical axis and two horizontal axesat right angles to each other, the arm having a'vertical elbow-joint to permit its working length to vary according to the needs of the work. In addition to these features I prefer to make use of a vertically-swiveled stem for the support of the thread-guide, so that the position of the latter can be varied at will in order that the thread may be caused to tail in any desired direction. I also give the plate in which the driver and punch take their bearings capacity 'for vertical movement in order that it may rise or fall to conform to irregularities in the last, there being a presser-foot provided which moves vertically with said plate, and is designed to rest upon the last during the punching or driving operation.

The nature of my invention, and the manner in which the same is or may be carried into effect, will be readily understood by ref- 7 5 erenee to the accompanying drawings, in which- Figure 1 is a side elevation of the machine, with the swinging head-stock supporting-arm in section, and the standard on which said arm is mounted broken off and brought down near to the base and treadle. Fig. 2 is aside elevation, somewhat enlarged, of the sliding plate which carries the punch and driver, the punch being partly in section,as well as the swiveled stem which carries the thread-guide presserfoot. Fig. 3 is a transverse vertical section of the parts shown in Fig. 2 on the line of the punch and driver. Fig. 4 is an enlarged horizontal section of the front end of the swinging arm and the head-stock mounted thereon, the latter carrying the sliding plate in which the punch and driver are mounted. Fig. 5 is a much enlarged vertical central section of the lower end of the punching and driving devices, representing, also, the presser footv and the thread-guide.

A is the standard which carries the swinging-arm. To its base A is pivoted the treadle B, by which the punch in this instance is operated.

C is the swinging arm for supporting the dri ving and punching mechanism. It is mounted on a vertical axis, a., on the upper end of the standard. It has a vertical elbow-joint at b, about midway of its length, and its outer or front end is swiveled to turn upon a horizontal axis, c.

D is the headstock, pivoted to a plate-extension, C', of arm C at cl, to turn upon ahorizontal axis at right angles to the horizontal axis c. Thus the head stock virtually has movement upon three axes, a c d,which are the substantial equivalent of a universal joint,and give to the head-stock the same capacity of movement and the same range of adjustment that would be afforded by a universal joint. The elbow-joint b permits the working length of the swinging arm to be varied, so that the head-stock can be brought nearer to or farther from the standard A, as desired.4

The treadle B is connected to a chain, E, which extends up through the hollow standard A, and is connected to and passed once or twice around the periphery of a drum, F, fast on ashaft, G. This shaft takes its bearings inside the hollow arm A, and is divided at the elbow-joint b, its two parts being connected at that point by the system of beveled gearing l 2 3, this arrangement permitting this rotary motion to be transmitted from one part of the shaft to the other without interfering with the bending of the arm at the joint. A slot, a2, in the standard A, permits the shaft G to swing wit-l1 the arm C. A coiled spring, H, fast at one end to the arm and at the other end to the shaft, tends to rotate the shaft in a direct-ion opposed to that in which it is caused to rotate by the depression of the treadle. The front end of the shaft G projects beyond the arm, and has on it a beveled gear, H', which, as seen in Fig. 4, meshes with a like gear, 5, on an arbor, d, which forms the horizontal pivot of the head-stock D. Upon the end of the arbor d, which projects through the head-stock, iS, a cam-plate, e, on which is xed a crankpin, f.

In ways or side guides D on the headstock D is mounted a verti call y-inovable plate, H2, in which are mounted the tubular punch I and the driver J. In the arrangement sh own in the drawings, which is intended to permit the tailing of the thread in any desired direction, the punch takes its bearing and slides in a stern, K, swiveled in the lower part of the plate H2, indicated in Fig. 2, so that it may rotate upon a vertical axis. The driver J is should not be positively fastened or connected to its actuating mechanism, because provision should be made for lost motion between the two, which will allow the swinging or bending of the arm without thereby imparting movement to the punch. To this end, while operating the punch bythe movement of the crankpin j', I do not connect this pin directly to the punch, but cause it to strike at certain times during its movement against mechanism which will thereby be caused to impart the requisite motion to the punch. This mechanism consists, in the present instance, of a plate, L, cari ried byand adapted to slide crosswise upon the plate H2, a spring, h, being provided to return it to the position from which it is periodically moved by the crank-pin. The inner slotted ends of a toggle-lever, M, are hung upon a pin, z', on this plate. The outer ends of said lever are pivoted the one at j to plate H2, the other at k to a hub or boss on the upper end or stock of the tubular punch. The crank-pin f and plate L are so arranged and positioned with reference to each other that the crank-pin in its movement which is in the direction of the arrow in Fig. 2) will strike against the heel of the plate and force it in the direction of its spring, thus straightening the toggle-lever, and consequently depressing the punch. As soon as the pressure is removed froin the treadle B, the crank-pin will return to its normal position, out of contact with the plate L, and the latter by its spring will be returned to its original position. thus raising the punch. There is sufficient lost motion between the crank-pin and plate L to permit the movement of the crank-pin due to the slight rotation of the gears 1 2 3, which takes place in bending or crooking the arm C at its elbow b, without infiuencing the plate L.

The sliding plate H2, which at other times is free to move or slide vertically, should be locked or held down during the descent of the punch. To this end I form in. a flange or ledge on the plate a series of notches or ratchetteeth, Z, and on the adjoining face of the headstock I pivot a pawl, m, which, by its spring n, is normally held out of engagement with said teeth. Thetail of this pawl is in the path of movement of the periphery of the cam-plate e. When the crank-pin f actuates the slide L, a rise on the cam-plate strikes the tail of the pawl and forces the latter into engagement with the ratchet on the plate H, thus preventing said plate from rising. At other times the tail of the pawl is opposite to a recess, o, in the cam-plate, which permits the pawl to remain out of engagement with the ratchet.

The swiveled stem K forms a handle which is taken hold of by the operator, and serves as a means by which he may bring the punch and driver over the desired point on the work. On the lower end of this stem is the presserfoot N, which is forked so as to straddle the punch, and its outer end is slightly turned up or is otherwise formed to provide on its under side a recess, p, for the guidance of the thread or cord. The stem also carries the threadguide O,which is jointed at r to the stem, and is provided with a spring, s,which normally holds it in such position that the thread,which passes through its eye t and thence extends to the hole in the sole last filled,will pass directly under the punch and driver and through the guide-recess p in the presser-foot. Upon the inner face of the stem of the thread-guide is a swell, o, and the punch is provided with an annular rib or protuberance, fw, which,when the punch begins to descend,will strike the swell o and force back the thread-guide, as indicated in Fig. 5, thus removing the thread from the path of the punch and allowing the latter to penetrate the stock y and remove therefrom the core or plug z.

The punch has its cutting-end internally beveled, as shown more plainly in Fig. 5. By this construction it is caused to cut a core of somewhat greater diameter than the interior of the stem of the punch, and this core in passing up to the position shown in Fig. 5 must necessarily be condensed and wedged tightly in the punch,thus preventing it from being drawn out when the punch rises.

Thel operation is as follows: The operator, taking hold of the stem, brings the punch over the work at the desired point, and then lowers the plate H2 until the presser-foot rests on the work. He then depresses the treadle B, which causes the punch to descend and cut a hole in the work, during which operation the plate H2 is locked down in place and the threadguide is moved to carry the thread out of the path of lthe punch. Pressure on the treadle being removed the punch rises, carrying with it the core or plug z, and the thread-guide, returning to its normal position, brings the thread once more under the punch and over the hole cut in the stock. The operator now strikes the driver on its head and depresses it, thus forcing out the plug from the punch and driving it back into the hole in the stock, carrying with it the thread or cord. The operator then moves the punch to the next point on the stock and the operation is repeated.

By swiveling the stem K, as indicated, I @all shift, readily, the position of the thread-guide, so as to cause the thread to tail in any direction. I am thus enabled to carry the punch alternately from one edge of the last to the other, forming a fastening alternately on each edge, which is desirable in cases where, as in the lasting-machine described in my pending application aforesaid, Serial No. 158,468, the lasting mechanism is of such nature as to make it inconvenient to follow one edge continuously.

My improved machine has, as I have hereinbefore stated, been designed with more particular reference to carrying out the method of fastening set forth in my Letters Patent No. 293,145. 1t can, however, obviously'be used in cases where nails or tacks are to be driven. In such case the punch would be dispensed with, the' driver would be connected to the toggle and operated by the treadle B and mechanism connected therewith, and a tack or nail race7 Would be provided, as customary in machines of this general class, to feed the tacks or nails and present them in proper position to be operated on by the driver.

Having now described my improvements and the best way at present known to me of carrying the same into practical effect, I desire in conclusion to be understood as not restricting myself to the mechanical details hereinbefore described and illustrated, since the same can be varied in many particulars without changing,essentially,the nature of the invention; but

What I claim to be new and of my own invent-ion is as follows:

1. The combination ofthe supporting-standard, the swinging arm, the head-stock carried by said arm and capable of motion upon the three axes a c d, and' the plate for carrying the punch and driver, mounted and vertically movable upon said head-stock, substantially as and for the purposes hereinbefore set forth.

2. The combination of the supporting-standard, the swinging arm formed with an elbowjoint, b, the head-stock carried by said arm and capable of movement upon the three axes a, c d, andthe plate for carrying the punch and driver, mounted and vertically movable upon said head-stock, substantially as and for the purposes set forth.

3. The combination, with the punch and driver, and the plate in which the same are mounted, of the threadguide and the swiveled threadguide-carrying stem, substantially as and for the purposes hereinbefore set forth.

4. The presser-foot, the thread-guide, and the swiveled stem carrying the same, inl combination with the punch and driver and plate in which the same are mounted, substantially as and for the purposes hereinbefore set forth.

5. The combination, with the reciprocating punch and driver, of the thread-.guide and the presser-foot formed with a guide-recess, p, substantially as and for the purposes set forth.

6. The thread-guide support and the springcontrolled threadguide jointed thereto, in combination with the reciprocating punch provided with a -cam or protuberance, whereby when the punch descends the thread-guide is operaigd to remove the thread from the path of the punch, substantially as and for the purposes hereinbefore set forth.

7. The combination, substantially as hereinbefore set forth, with the vertically-movable punch-supporting plate, the punch mounted therein, and the mechanism for reciprocating said punch, of means, substantially as described, whereby said plate is locked against upward movement while the punch is doing its work.

IOO

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gle-lever through which the crank-pin operates the punch, the ratchet Z, and the detent or pawl m, operated by the cam-disk to engage 15 the ratchet at the time and inthe manner substantially as hereinbefore set forth.

In testimony whereof I have hereunto set my hand.

FRANK CHASE.

Vitnesses:

EWELL A. DICK, J. WALTER BLANDFORD.

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