US54735A - Improved crimping-machine - Google Patents

Description

UNITED STATES PATENT OFFICE.

IMPROVED CRlMPlNG-MACHINE.

Specification forming part of Letters Patent No. 54,735, dated May 15, 1866.

To all whom it may concern:

Be it known that I, JOHN P. JAMIsoN, of New York, in the county of New York, in the State of New York, have invented a new Mode 0f Crimping Leather for Boot-Fronts; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The nature of my invention consists in perfectly crimping boot-fronts by machinery and by one stroke ofmy machine; and I do hereby declare that the following is a full and eX- act description thereof.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

As shown in the drawing' No. 1, A is the frame which supports the rack and pinion B. The cross-piece C slides up and down upon frame A. rIhe springs D and E are secured to the cross-piece O. The front springs, D, are made stationary to the cross-sliding piece C by a bolt running through springs D and cross-piece O. The back springs, E, are made fast to a rod by a nut at both ends, allowing the rod to play in cross-piece G. At the bottom of the springs D and E are four brass jaws or stretchers, F.

Gris the crimping form or block upon which the leather is laid to receive the action of the jaws or stretohers, and is secured to the bed of the machine by screws.

H represents two inclined planes, also secured tothe bottom or bed of the machine.

On both sides of the crimping form or block are rollers attached to the brass jaws or stretchers F; As the crank or lever is turned back the jaws descend, the front ones perpendicularly, holding the leather while the back ones pass over the inclined plane H, thereby stretching and smoothly carrying to its proper place the back part of the leather.

Having thus fully described the construction of the said machine and the operation of its several parts, what I claim as my invention, and desire to secure by Letters Patent,

1. The four springs D and E, made of metal or other substances, adjusted, arranged, and secured to the cross-piece O in the manner hereinabove substantially set forth and described.

2. The four brass jaws or stretohers marked F, in combination with said four springs, D and E, secured to the crossfbar O, as regulating and 4providing for the selfadjustment thereof, as herein shown and described.

New York, March l5, 1866.

JOHN P. JAMISON.

Witnesses G. W. JAMIsoN, R. R. RoLLINs, J AMEs PRICE.

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