US169971A - Improvement in boot-crimpers - Google Patents

Description

. W. H. EDDY.

BOOT-CRIMPER.

Patented Nov. 16, 1875.

Inzwm/fan ffziz N- PETEHS. PHOTDJJTHDGRAPNER. WASHINGTON. D. C.

UNTED STATES PATENT Orrio.

' WILLIAM H. EDDY, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT lN BOOT-CRIMPERS.

Specification forming part of Letters Patent No. I 69,971., dated November 16, 1875; application filed January 30, 1875.

To all whom it may concern Be it known that I, WILLIAM H. EDDY. of the city and county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Boot-Crimping Ma chines; and I do hereby declare the following to be a full, clear, and exact descrip- -view of the former and clamping-piece.

The first part of my invention consists in the employment of a crimping follower or former, working on a central axis with a rotary movement, and capable of independent lateral movement, in combination with circular or annular shaped jaws, as hereinafter de scribed.

I The second part of my invention consists-in the combination, with the former and jaws in a boot-crimping machine, of a clamping mechanism for holding the leather in position against said former, and preventing it from being carried to either side by the action of the jaws.

In the drawings, A denotes the supportingframe. B B indicate the circular crimpingjaws; C, the former or follower, and D the operating-shaft. The shaft D is supported and turns in hearings to a on the frame A, preferably in a horizontal position, while the jaws B B, which I make in annular form, em-

bracing about three quarters of a circle, more or less, with an opening at one side, are arranged around the shaft concentric therewith, and in planes perpendicular to its axis, as shown, said jaws B B being supported firmly in position by a suitable framework or standard, E. The jaws B are held to each other by bolts or rods F, provided with coiled-wire springs G for pressing the jaws together, and having nuts H for regulating the force of the springs. Washers are arranged on the rods The former G is attached to a hub, c, keyed to the shaftD by a suitable spline, so that the former 0 will stand out radially from said shaft in such position that the revolution of the shaft D will carry around the former 0 between the annular jaws B B. The hub c is allowed sufficient looseness to slide laterally on the shaft, whereby side strain on the former is prevented and the parts rendered self adjusting, so that the former G will pass between the jaws B B with an equal pressure from each. The operatingshaft D is turned for carrying the former G between the jaws, by means of the gear K and pinion L, the latter being driven by a belt on the pulley M, and a suitable automatic clutchdevice may be arranged with the pulley M and pinion L for starting and stopping the machine when the former O is at the opening of the jaws or in position for feeding and disformer 0, so that when closed down against the latter the leather of the boot-front will be firmly held between the two edges alongits central line, or at the position where it is folded to form the crimp, and as the shaft and former move forward the friction of the jaws B B upon the clamp-piece I forces the latter firmly down upon the leather, and thus obviates any liability of its being drawn to one side as it enters between the jaws. The clamppiece I, being somewhat thicker than the edge of the former, also prevents tearing the leather at the part where it is folded, while itsjront edge serves as a leader for opening the jaws B. The clamp-piece may, if desired, be made with spring sides to insure friction against the faces of the jaws when the latter are distended by the thickness of the leather passing between them. In the present instance the clamp-piece I is connected to the former G by a pivotjoint, J, near the hub a, so that its outer end can swing upward to release or receive the leather or boot'fronts, which are fed into and discharged from the machine as the former passes the opening or space between the endsof the jaws. If preferred, the clamp mechanism .can be arranged for opening and closing in other manner, and mechanism may be combined therewith for accoiplishing the operation automatically, if desired. The inner faces of the jaws B are provided near their front ends with aseries of curved or:crescent:

- a central axis concentric therewith, gives a greater amount of movement and friction near the periphery than near the center, consequently the leather of the foot part of the boot, which is outward, is subjected to a greater amount of stretch, thereby drawing back the rear corners and imparting the desired form and crimp in a very perfect and satisfactory manner, while the rear ends of the jaws, being made with smooth faces, press down the surface of the leather and leave it in a neat and finished condition.

A second former may be attached :to the shaft D to'work between the jaws B B when desired, the formers being placed at opposite sides, so that the two will feedand discharge alternately, and can be tended by a single operator, or, if desired, a greater number of formers and jaws can be used, since the lateral movement of the formers O on the shaft 1) enables the whole series to conform auto matically to-the positions of their several jaws v as the latter are pressed apart by the'passage of the leather, or set together by the springs crimping-machines'of other construction than that herein shown with good result.

I intend to employ guiding mechanism in combination with the front of the jaws B B, where indicated by dotted lines 00, to assist in accurately feeding the leather into the machine, the construction and arrangement of said guiding mechanism to form the subjectmatter of future application for Letters Patent.

'Having described my improved boot-crimpin g machine, what I claim therein as new and of my invention, and desire to secure by Letters Patent, is

1. The combination, with the carrier or operating shaft D and annular jaws B B, of a former or formers, (3, attached to the shaft and arranged to rotate between said jaws,'-and capable of independent lateral adjustment, substantially as and forthe purpose set forth.

2.111 a machine for crimping boots and shoes, the combination, with the jaws B,-of a former, O, adjustably attached to a rotating shaft, working with a constant forward action, and a clamping device, I, operated against the edge of said former by the friction of the jaws against .said :clamp, substantially as and for-the purpose set forth.

In a boot-crimpingmachine, annularor curved jaws B B, provided with crescentshaped grooves b b, in combination with a former or brake, O,mounted upon and operated by a rotating shaft and a clampor guard mechanism for holding and protecting the leather along the front edge of said former, substantially as :herein set forth.

WILLIAM H. EDDY.

Witnesses:

YUHAS. H. BURLEIGH, S. BARTON.

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