US301305A

US301305A - Hugo theis

Info

Publication number: US301305A
Authority: US
Publication date: 1884-07-01
Anticipated expiration: 1901-07-01

Description

(No Model.) H. TI-IBIS.

solssoas AND SHEARS. No. 301,305. Patented July 1,1884,

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rion.

HUGO THEIS, OF SOLINGEN, PRUSSIA, GERMANY.

SCISSORS AND SHEARS.

SPECIFICATION forming part of Letters Patent No. 301,305, dated July 1, 188%. Application filed December S, 1883. (No model.)

' fieation.

The nature of my invention consists of the arrangement of a serrated cam or lever on one leg of the scissors and'a projecting point on the other leg, which, according to the position of the serrated earn, regulates the closing of the scissors, and consequently the amount or length of the out to be produced.

In the accompanying drawings, Figure 1 is a front view, and Fig. 2 an inside view, of the leg M of the scissors embodying my invention. Fig. 3 is a front view of scissors, showing the position of the serrated cam to out a certain length; and Fig. 4 shows the same fixed for a different length of out, partly in section.

Similar letters represent similar parts in all the figures.

M N are the legs of the scissors, turning on the pin a, and arranged with their cutting ends m a similar to scissors for cutting buttonholes. In one of the legs, M, a serrated cam or lever, A, is fixed to a center pin provided with a knob, D, through which said cam A can easily be turned into any desired position. I-ielow this serrated cam a spring, 0, is arranged to hold this serrated cam A in any position the same may be moved, on account of its friction, during the operation of cutting. On the other leg, N, nearly opposite the turning-point of the cam A, a proj eoting point, I, is attached. When the cam A is turned so as to lie within the body of the leg M, a hole equal to the whole length of the cutting parts of scissors from m to 2; (see Fig. 1) can be out. When the cam A is turned so that the projection I comes into one of the serrated parts or teeth of the cam A, by the closing of the legs M and N, the length of the hole that will be cut will only be the distance from a to o, (see Fig. 3,) and when said cam A is turned so that the projection Iwill come in contact with the end of the cam Athe shortest hole in length correspond ing from 00 to c, Fig. 4. It will be seen that the length of the hole or out will therefore depend upon the position of cam A and the serrated part or tooth against which the projection I will COIllGlll contact when the legs of the scissors are closed. These serrated parts or teeth may be numbered for the purpose of facilitating the position of the cam A according to the desired length of the hole to be cut; or the length corresponding with each tooth can be marked upon the cam A. Instead of arranging this serrated cam A in the body of the leg M, as here shown, the same may be arranged upon its face, and the point or projection I in that case upon the surface of the leg- N in a line with the cam A; but I prefer to place the same into the body of one of the legs, to have as little as possible projection on the outside of the scissors.

The knob D may be dispensed with and the cam A moved in the desired position by the end of the finger.

lVhat I claim as my invention, and desire to secure by Letters Patent, is

In scissors having cuttingedges m a similar to button-hole scissors, the combination of a serrated cam, A, with frictionspring O in one of the legs and a projection, I, on the other leg of the scissors, substantially in the manner and for the purpose herein described.

. HUGO TI-IEIS.

\Vi tnesses:

CARL JOI-IANN KAUFMANN, HANS Fnmnn'ron.