US362572A

US362572A - Feedebick clatjss

Info

Publication number: US362572A
Authority: US
Publication date: 1887-05-10
Anticipated expiration: 1904-05-10

Description

(No Model.)

IF. OLAUSS.

' SH'EARS.

No. 362,572 Patented May 10, 1887.

I llVVE/VTOR a,

wmvEssm- UNITED STATES PATENT QE IcE.

FREDERICK GLAUSS, OF ELIZABETH, NE\V JERSEY.

SHEARS.

SPECIFICATION forming part of Letters Patent No. 362,572, dated May 10, 1887.

Application filed January 28, 1887. Serial No. 225,782. (No model.)

To all whom it may concern.-

Be it known that l, FREDERICK CLAUss, of Elizabeth, in the county of Union and State of New Jersey, haveinvented certain new and useful Improvements in Shears, of which the following is a full, clear, and exact description.

My invention relates to that class of shears or scissors in which the cutting-blades are held against each other by means of aspring acting upon a loose bolt'at the pivot-joint of the blades. I

The object of my invention is to produce a uniform pressure between the blades at their cutting-edges.

The invention consists in the combination of the cutting-blades with a pivot-pin passing loosely through the cutting-blades anda'springplate held on one end of the said pivot-pin and pressing against one cutting-blade.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation ofa pair of shears provided with my improvement. Fig. 2 is a plan view of the same. Fig. 3 is a sectional plan view of part of the same on the lines 00 m of Fig. 1. Fig. at is a plan view of the pivotpin. Fig. 5 is an end elevation of the same. Fig. 6 is a side elevation of the same. Fig. 7 is a face view of the spring:plate. Fig. 8 is an enlarged sectional view of the same on the lines y y of Fig. 7. Fig. 9 is an enlarged crosssectional view of the same on the lines 2 z of Fig. 7.

Through the shear-blades A and B passes at their pivot-joint the pivot-pin O, which is not rigidly connected to either blade, and is provided with the head 0, the shank O and the flat head 0, which is cut under to form a shoulder, G.

The spring D is formed of one piece of steel and is provided in its center with a slot, D, corresponding in size to the flat head (3 of the pivot-pin C. At right angles to the slot D, and at each side of the same, is formed a depression or indentation, D", in which is held and rests the flat head 0 when the several parts are adjusted and in their proper places. The spring D, which is preferably in the shape of .a disk, is also provided with a number of radial slots, D which commence at the periphery and extend inwardly a suitable distance, and then join a circular slot, D, which terminates about halfway between the two succeeding radial slots D The two corresponding slots D and D* form a prong or flap, D which is bent inwardly, as shown in Figs. 3, 8, and 9.

The several parts are put together by first passing the pivot-pin 0 through the blades A and B at their pivot and by then placing the spring D, with its prong D held inwardly, on the head 0 so that the latter passes through the slot D. The spring D is then given one quarter-turn, so that the flat head rests in the indentations D" on the outside of the spring D and the prongs or, flaps D rest with their free ends on the blade A. The spring D is now locked on the pivot-pin O, and bears upon the blade A at several points which are equidistant from the center of the pivot-pin G. The spring D presses against the flat head 0 of the pivot-pin O and against the blade A,

Having thus described my invention, I'clainr as new and desire to secure by Letters Patent The combination, with apair of shear-blades, of a pivot-pin provided on one end with a head resting against one shear-blade and on its other end with a fiat head forming a shoulder, and a spring having a central slot for the passage of the said fiat head, and indentations for the retention of the said flat head, the said spring also provided with inwardly-extending prongs resting on one of the said shear-blades, substantiall y as herein shown and described.

FREDERICK OLAUSS. Witnesses:

CHAS. NIDE, E. F. DREWSEN.