US14698A - George w - Google Patents

Description

UNITED STATES AT i OFFIO.

GEORGE W. PRUYNE, OF MEXICO, NENV' YORK.

MACHINE FOR RAISING AND CREASING LEATHER STR-APS, &c.

Specification of Letters Patent No. 14,698, dated April 15, 1856.

To all whom t may concern.'

Be it known that I, GEORGE IV. PRUYNE, of Mexico, in the county of Oswego and State of New York, have invented certain new and useful Improvements in Machines for Raising and Creasing Leather; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part thereof, in which- Figure 1, represents a perspective view. Fig. 2, represents a central longitudinal and vertical section through the machine, and Fig. 3 represents the raising and creasing rollers detached.

Similar letters where they occur in the separate figures, denote like parts.

The nature of my invention relates more particularly to the construction, location, and combination of the guides with the rolls, so as to direct the strap or other thing drawn through between them, and thus prevent the possibility of its becoming skewed i in the grooves.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawings.

A, represents a table, upon which are raised the pillar blocks B, which support the several operative parts of the machine. In suitable boxes in said pillar blocks, the journals of the upper, or concave grooved roller O, rest and rotate. The pillar blocks, besides being secured to the table at their base, are tied by the through rods D, E.

F, is a yoke-shaped, or forked lever, the two arms of which, have scores a, a, on their under sides which fit over the lower through rod E-said rod being the fulcrum of the lever F. On the rear end of the two forks (F, F,) of the lever F, are supported the journals, of the lower roll G, whose grooves are in reverse to those of the upper roll C, or so that their opposite surfaces shall be parallel to each other as seen in Fig. 3,) and the Yspace between them shows the outline of the shape or form of the strap after it is drawn through between them.

H, represents a plate, secured to the pillar blocks, of the length of the rolls, and located near to the point of impact of the two rolls. Upon this plate are formed a 1 series of guides b, ZJ, I), whichcorrespond in width, with the distance between the collars or flanges c, on one roll, and the corresponding recesses Z on the other. These guides are covered at top, so as to make .four sided boxes, and so that the strap, after 1t is creased by the rolls, and passes into its special guide, shall not skew or twist in the groove, and make irregular work. A guide before the rolls does not serve the purpose, inasmuch as it there becomes a directrix to the creased strap as it leaves the rolls, but 1t would not counteract any tendency of the raised and creased end of the strap (which `1s the most important object), to skew. By placing the guides in rear of the rolls, and passing the strap through as shown by the arrows in Fig. 2, they become a directrix to the finished work, and being so close to the rolls, the operator may take the end of the strap in his hand, and draw it through without the least fear of its skewing, or irregular raising and creasing.

In the front end of the lever F, is a stirrup I, which conects it with spring J hung to the underside of the table at K-the power of said spring J, being adjustable through a nut and screw, on the stirrup rod I. l

L, is a rock shaft supported on the underside of the table, and having a lever M, connected to one of its ends, and projecting up so as to be conveniently reached by t-he operator. On the rock shaft L, is a toe N, which strikes against the upper leaf of the spring piece J, and in forcing down said spring piece it throws up the roll G, against that C, through the stirrup rod I, and lever F. When the two rolls are thus thrown together, the friction of the toe N, on the spring piece will hold them together, while the spring will allow them to yield to any irregularity in the thickness of the strap, as it passes through. By drawing back the lever M, and disengaging the toe and spring J, another spring O, on to-p of the table, draws down the rollerGr, from the one C, so that the end of the strap may be readily introduced between them. The rolls may be of wood or metal, or parts of each-I use them one of metal, andthe other of wood. In entering the strap to be creased, so much of it, as is necessary to furnish a hold for the operator, after it passes the guides will not be creased, but when the end is drawn leather have been used; these I do not Claim, but

What I do claim as new and desire to secure by Letters Patent is- In combination with the grooved rolls, one of which is yielding as herein set forth, the guides b through which the creased partof t-he strap is drawn substantially in the manner, and for the purpose set forth, and so that said guides shall serve to direct the finished strap as it passes through between the rolls.

GEO. NV. PR'UYN E. l/Vitnesses THos. H. UPPERMAN, E. COHEN.

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