US247305A - Sole-edge turning or bending machine - Google Patents

Description

(No Model.)

G. GHABOT.

SOLE EDGE TURNING OR BENDING MACHINE. No. 247,305. Patented Sept. 20,1881.

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i UNITED STATES PATENT OF ICE.

CYPRIEN OHABOT, OF PHILADELPHIA, PENNSYLVANIA.

SOLE-EDGE TURNING OR BENDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 247,305, dated September 20, 1881.

Application filed February 23,1881. (No model.)

To all whom it may concern Be it, known that I, OYPRIEN CHABOT, a citizen of the United States, residing in Philadelphia,Pennsylvania, haveinvented certain Improvements in Sole-Edge Turning or Bending' Machines, of which the following is a specification.

My invention relates to certain improvements in that class of machines designed for bending or turning down the edge of a shoesole after it has been subjected to the action of the channeling-machine, the main objects of my improvements being to provide for the proper feeding of the sole without interference with the action of the edge turning wheels, and to insure the opening of the thread-slot which has been formed in the sole by the channeler. These objects I attain in a manner too fully described hereinafter to need detailed preliminary explanation.

In the accompanying drawings, Figure 1 is a longitudinal section of m y improved sole-edgeturning machine; Fig. 2, a front view of part of the same; Fig. 3, a view of the edge ofthe sole as prepared by the channeling-machine; and Fig. 4, a diagram illustrating the character of the work performed by my improved machine.

A represents a post or column having afiaring base adapted to be secured to a table or similar support. On the upper end of this post A is formed a yoke or frame, B, the opposite vertical standards of which are provided with bearings for two longitudinalshafts, D and E, arranged one above the other, the

' upper shaft, E, having its bearings directly in the frame B, and the lower shaft,'D, being adapted to boxes G and H,theformerof which is pivoted at a: to the rear standard of the frame 13, while the box H is at liberty to slide vertically in the front standard of the frame, the depression of the box being effected by means of a rod,R, which extends down through the supporting-table and is connected to a suitable treadle, a coiled spring, S,tending to elevate the box, and the tension of this spring being regulated by means of an adjustingscrew, T, adapted to a threaded opening in the base of the post A.

The boxes G and H may be independent of wheel and spindle. a

each other; but it is preferred to connect them together either by a frame, as shown in Fig. 1, or by suitable rods, so that the movement of the boxes may be effected without any strain upon the shaft D.

The front or projecting end of the shaft E is slightly enlarged in diameter'and is furnished with a beveled shoulder, g, and the front or projecting end of the shaft D is reduced in diameter for the reception of a beveled ring, j, and has a central opening for the reception of the stem of'a block, 2', having a rounded or V- shaped edge, the ring j, and block 6 being firmly secured to the shaft D and acting in conjunction with the flange g on the shaft E, to eifect the turning or bending of the edge of the sole.

The ringj and block imay be cast in one piece, if desired; but it is preferable to make them separate, as described, in order that either part can be changed to suit the varying character of the edges of the soles which have to be acted upon.

The shaft E is made tubular for the reception ot'a spindle, e, which is secured to the said shaft E at the rear end, the front end of the spindle, however, projectingbeyond the front end of the shaft and being provided with a notched or serrated feed-wheel, f. The tendency of the spindle c is to remain in line with the axis of the shaft E; but said spindle possesses sumcient elasticity to permit a slight vertical movement of the feed-wheel fwhen pressure is exerted upon the latter,'(see dotted linesf, Fig. 1,) the central opening'ot' the shaft E being flared toward the front end in order to permit this movement of the feed- The degreeof elasticity of the'spindle may be regulated by means of set-screws adapted to threaded openings in the shaft E and serving to confine the spindlee to said shaft at a point more or less remote from the front end of the same; for the greater the distance between the end of the spindle and the point of confinement of the same the greater will be the elasticity of the spindle, the elasticity decreasing as the distance decreases.

An arm on the frame B carries a transverse pin, 1, to which is hung alever, m, the short arm of which is provided with an anti-friction roller bearing upon the front end of a spring, 7c, having its fulcrum on a stud on the frame B and acted upon at the rear end by a thumbnut, the adjustment of which regulates the tension of the spring. The tendency of this spring is to retain the lever m in either of its extreme positions-that is to say, in the depressed position shown in Fig. 1, or in the elevated position shown in Fig. 2.

To a suitable bearing in the levermis adapted a stem, 11., carrying at the lower end abeveled disk, h, the upper end of the stem being adapted to an opening in a threaded stem, n, by adjusting which the position of the disk h, in respect to the lever, may be varied, as desired.

The rear end of the shaft D is provided with an operating-crank, O, and the two shafts, D and E, are suitably geared together, so as to turn in opposite directions.

The operation of the machine is as follows: The lever m being elevated, as shown in Fig. 2, pressure is applied to the treadle connected to the rod B, so as to depress the box H and the outer end of the lower shaft, D. A shoesole, previously prepared by the channelingmachine, so as to present a grooved edge, 1', and an inclined slot, at, adjacent thereto, as shown in Fig. 3, is then adjusted to its proper position in respect to the flange g ofthe shaft E, and the shaft D allowed to ascend, so as to bend the edge of the sole and press the same firmly against the flange g and feed-wheel f. The lever m is depressed, so that the edge of its disk h enters the slot at, and the crank G'is rotated, thereby rotating the shafts D and E in opposite directions, and causing the sole to be fed through the machine by the action of the feed-wheel f thereon, the edge of the sole being bent, as shown, and the disk h remaining in the slot u and serving to effect the openin g of the same, in the manner illustrated in Fig. 4. The feed-wheel f is at liberty to yield vertically to accommodate itself to inequalities in the thickness of the sole,without affecting the position of the edge-turning flange 9 on the shaft E, the latter always preserving one position and thereby insuring the uniform turning or bending of the edge of the sole, independent of the variations in the thickness of the same.

It should be understood that the ed ge-bending wheels and the feed-wheel must be so proportioned in respect to each other or so driven as to travel at the same surface speed, otherwise there will be a drag on the work.

In carrying out my invention it is not absolutely necessary that the construction shown should be adhered to in all cases. Forinstance,

instead of securing the rear end of the spindle e to the shaftE and relying upon the inherent elasticity of said spindle to hold the feed-wheel f to its work, the spindle might be connected to the shaft by a universal joint, the outer end of the spindle in this case being acted upon by a suitable spring, and a kind of spring different from that shown may be used for acting upon the lever m or upon an arm which may take the place of said lever, or-a fixed slotopening, blade, or wheel may take the place of the swinging disk h. The arrangements shown in the drawings are preferred,however, as they are simple and compact, and have been found to be effective in practice.

I claim as my invention 1. In a sole-edge-bending machine, the combination of edge bending and feeding wheels and means of rotating the same with a device for opening the thread-slot of the sole simultaneously with the bending of the edge of the latter, as set forth. 7

2. In a sole-edge-bending machine, the combination of edge bending and feeding wheels and means for rotating the same with a threadslot opener, and means for applying the same to and removing it from said slot, as specified.

3. The combination of the shaft D and the hollow shaft E, each provided with an edgebending wheel, means for rotating said shafts, and a spindle, 6, adapted to the hollow shaft E and connected thereto at the rear end, but having its front end unconfined and provided with a feeding-wheel, f, as set forth.

4. The combination of the shaft D with a sole-edge-bending wheel comprising a ring, j, and block 1 detachable from each other and from the shaft D, as set forth.

5. The combination of the frame B, the soleedge bending and feeding wheels, and means for rotating the same, the lever m, hung to the frame B and carrying the disk h for opening the thread-slot, and the spring for acting on said lever m, as set forth.

6. The combination of the sole-edge bending and feeding wheels and means for rotating the same with the lever m, the disk h, having a stem, 1, adapted to said lever, and the threaded stem u, for adjusting said stem n, asset forth.

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

OYPRIEN OHABOT. Witnesses:

JAMES F. Tonnv, HARRY SMITH.

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