US75186A - John a - Google Patents

Description

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Leners Pafentlvaf75,18c,daad Mami 3,1868,

IMPROVEMENT IN BOT-GRIMPING MACHINE.

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Beit known that I, JOHN AL'NESBIT, of Charlottesville, in the county of Hancock, and State of Indiana, have invented a new 'and useful'Improvement in Machines for Crimping Boots; and I do hereby declare that the following is a. full, clear, and exact description ofthe same, reference being had to the annexed drawings; making part of this specificatiomrin which- Figure 1 is 'a side elevation.

Figure 2 is a vertical transverse section through the middle; and

Figure 3 is the clamp.

.The same letters are employed in both gures for indicating the sameparts.

l My improvement 'consists in combining with a crimping-machine a detachable crimping-brake, upon which the leather is attached while in the machine by means of clamps.V

The following description will enable persons skilled in the art to construct and operate my improved bootcrimping machine. A

A is the frame, the sides 'of which have on their inner faces ways, upon' which the guide B may slide up and down. This ,guide has four bearings grooved to lit the ways. It sustains the crimping-brake@ which is attached to it by the catches C. .The lower part ofthe crimping-brake is formed in the 'shaperequired for the front part of the boot. The leather to form the boot-front is placed on the jaws D, which are adjusted to the proper distance from one another by means of a screw, D', passing through them, and turned bya winch. When the leather' is in place, the crimping-brake Cis forced down upon it by means of a winch, E, turning alpinion,

operating a rack,`F, attached to the guide-frame; and passing through the top of therframe A, through which the shaft ofthe pinion passes also. When the leather has been `pressed between the jaws to the proper distance to form the boot-frcnt, it -is attached to the crimping-brake' by the clamps G, and when secured, the crimpingbrake is raised by reversing the action of the pinion and rack, and the crimping-brake, with the leather attached, removed from the machine and set aside to dry. 'Another crimping-brake must be substituted, if necessary, to cri-mp other fronts.' I i i t The clamps Gare constructed as follows: The outer part of tho clamp is a jaw, in the form ofthe letter U, the inner faces being inclined towards one another at the points, 'and corrugated to give a firmer-hold on the leather. Within the jaw is a. wedge, Gf, of such size as to leavospace on each side for the thickness ci' the leather between it and the yoke. The wedge is held in place by a sore'w, G2. j

The edges of' the leather being placed in the jaws on .each side of' the wedge, and the latter pressed down against it, it will be seen that the strain of the leather, as it shrinks in drying, will only cause the clamps to adhere-more firmly. 4In order that the clamps may he more conveniently ailxed to the leather on the crimpingbrake,'the guide B is cut away, as shown in the drawings in tig. 1, to give access to the edges of the leather.

Whatvlf cla-im as my invention, and desire` to secure by Letters Patent, is

1. The guide B, sliding onsways attached to the frame A, and so cut away-on the lower edge that the clamps may be attached to` the edges -of the lent-lienvwhile on the brake and under pressure, and used in cornlbina'tion with-removable'hrake C, adjustablejaws D,` and clamps G, substantially as described. 2. The arrangement of the reciprocating guide B, ways A, removable'brake C, winch E, and pinion and rack F, substantially as and for the purposesct forth.

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

JOHN A'. NESBIT.

Witnesses:

Josmn S. MeNUrT, JOHN H. Herren.

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