US100218A

US100218A - Improvement in shears

Info

Publication number: US100218A
Authority: US
Publication date: 1870-02-22
Anticipated expiration: 1887-02-22

Description

FRIEDRICH ULRICH,A OF BROOKLYN, D., NEW YORK.

Lette/rs Patent No. 100,218, dated February 22, 1870.

IMPROVEMENT IN SHEARS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern:

Beit known that I, FRI EDRICH ULRICH, of Brooklyn, E. D., in the county of Kings, and State oi' New York, have invented a new and useful Improvement in Shears and I do hereby declare the following to he a full, clear, and exact description thereof', which will enable those skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification, in which drawlllt-I- Figure 1 represents a sectional side elevation of vthis invention.

lFigure 2 is a transverse section of the same.

Similar let-ters indicate corresponding parts.

This invention relates to shears which are intended particularly for tailors use.

The invention consists in the arrangement of a forked arm projecting from the movable handle and catching over a pin secured in an arm extending from the movable jaw ot' the shears, both the movable handle and the movable jaw having their bearings in pins secured in cheek-pieces, which rise from the stationary jaw in such a manner, that while the stationary jaw rests on the table or platform, on which the cutting operation is performed, a'comparatively short motion ofthe movable handle throws the movable jaw wide open, and that, in depressing the movable handle, the full power ofthe arm can be brought into action and the cutting operation is thereby materially facilitated. The movable handle is provided with a palm-rest and with a thumb-groove, so as to adapt the same to the hand and 'render the operation of the shears as convenient as possible. The stationary jaw is provided with a face, against which a cutting blade 'is' screwed in such a manner that said cutting blade can be taken olil for the purpose of grinding, and that the same, by grinding or tiling oli the face of the stationary jaw, can always be adjusted in the proper' rclation to the movable jaw onblade. rlhe stationary handle is provided with a roller-caster for the purpose ot' facilitating the motion of the shears in cutting.

In the drawing the letter A designates the stationary jaw, which is provided witlra flatr face, against which the cutting-blade a is secured by means of screws,so that said blade can be readily removed for the purpose of grinding, and that the same can always be set upagainst the movable blade simply by tiling or grinding otf the face of the stationary jaw.

. lhisarrangement of parts is ve'ry important, because, if the movable cutting-blade-is ground off on its face,'the relative position of the two blades will be disturbed, and they have to be readjusted in order to enable the shears to cut properly.

Said stationary jaw is provided with a supporting hase, "b, and with a stationary handle, c, which is tur-V nished with a roller-caster, (l, so that the shears can be moved and turned with the least possible friction on the platform or table on which thel cutting is to be performed. Said roller rests in a cavity in thc end of the handle o, heilig retained therein by a flat plate, or in any other desirable manner.,

From the hase brise two cheek-pieces, c, which form the bearings for the tulcrum-pin fof the movable jaw B, aml for the fulcrmmpin g ofthe movable handle G. Said handle is provided at its inner end with a forked arm, h, which straddles a pin, t', secured in an arm, j, which projects from the movable jaw, as shown in the drawing.

The handle is so shaped that it forms a palm-rest, L', and it is provided with a groove, l, to receive the thulnb.

By these means the movable jaw can be thrown wide open with a comparatively short motion of the movable handle, and in depressing.; said' handle the full power of l the arml can be exerted without danger of injuring the palm orother parts ofthe hand, the shears can be readily moved in either direction, and l.four or more thicknesses of cloth can be cut simultaneously with comparatively little exertion.

What I claim as new,aud desire to secure by Let.

ters Patent, is-

1. The movable handle G, formed at one end with a palm-rest and thumbrroove, and at the other with an open slot forming a fork, in combination with a pin on the cutting-blade,.substantially as set forth.

2. The stationary'jaw A', having secured to it thev cutting-blade a., and continued into a supporting base b, and stationary handle c, in connection with thecutting-blade B, and handle C, substantially as and for the purpose described.

3. The roller-caster din the stationary handle c of shears, substantially as set forth.

'4. The palm-rest 7c and the thumb-groove I, in the handle C, substantially as described.

This spccilication signed by me this 24th day of December, 1869. y

FRIEDRICH ULRICH. Witnesses: W. HAUFF, E. F. KASTENHUBER.