US105639A

US105639A - Daniel campbell

Info

Publication number: US105639A
Authority: US
Publication date: 1870-07-26
Anticipated expiration: 1887-07-26

Description

D. CAMPBELL, SHEEP SHBARS.

Patented July 26,1870.

DANIEL CAMPBELL, or ELIZABETH,

NEW JERSEY, ASSIGNOR TO HENRY.

SEYMOURdt 00,011 NEW YORK CITY.

Letters Patent No. 105,639, dated July 26, 1870.

mpaovemsm' m BHHEP-SHEARS.

The Schedule refened to in these Letters Patent and making part of the same I, DANIEL CAMPBELL, of Elizabeth, in the county of Union and State of New Jersey,'have invented cer-.

. tain new and useful Improvements in Sheep-Shears, of wlnch the following is a specification.

Nature and Objects of the Intention. The invention consists in a novel construction and arrangement of parts, of which the object is to lessen "thcliability (if-breakage or delangeinent, and lower the cost of production, as will be fully set forth.

Description of the Drawing. 1 .is a perspective view of my invention. 2 is a'sectional view through line a: y, fig. 1.

Figure 3 is a-view of a portion of the handle of a pair of shears, showing an alternative of construction.

Figure 4 is a view ofithe right-hand side of fig. 3.

U General Description. I

In the ccnstrnctioh of most of this class of shears at the present time, the spring is formed of a steel bow, nniredto the ends of the handle.

This how must necessarilybe made of the best quality of steel, in order to give it the requisite tough- I Figure Figure ness and elasticity; and the manufacture of the shears is rendered expensive, as well by the labor of shaping and proply tempering the spring, as by the cost of the steel required This principle of construction is also defective, be

cause the, spring which forms the connection between the two handles is, from its position, liable to become fractured by being accidentally dropped or receiving.

a sudden blow.

he manner in which I construct my improved shears enables me to overcome the imperfections and disadvantages above mentioned, while it materially reduces their cost of production. Y t

In the drawing accompanying this specification- A' A represent the handles to which the cuttingblades are welded.

They are connected together by the screw B, which passes through the two lugs hi), and forms the joint upon which they turn.

The ends of the handles are bentinto the curved shape shown in fig. 1, or the pieces a a may he made separately, and welded to the ends, so as to cover the rubber ring 0, which forms the spring.

Each curved piece a is provided with a pin, 0, around which the ring 0 is placed, so that the action of the spring tends to draw the bows ea together, and throw the cutting-hlades apart. W

The extent of motion of the blades is governed by the'length of the hows it a, which, coming in cont-act with each other at d (I, prevent the further operation of the spring. 7

The ends of the handles may he also formed into a shape similar to that shown in figs. 3 and 4-, the ends 0 0 being bent so as to hold and retain the'rubber spring 0, and the pins 0 c are placed so that the spring is held diagonally, an acts with a tendency to draw the cutting edges of the blades against each other.

1. The arrangement of the blades A A, arms I) b,

screw B, and spring 0, constructed and operating substantially as described and set forth. 2. The arrangement of the blades A A,'hinged together as described, spring 0, and stops d (1,0011- stru'cted and operating substantially as set forth and 3. Arranging the pins 0 c and spring 0 so thatthe cutting-surface of the blades shall always be kept. in

contact, substantially as described'and set forth.

DANIEL CAMPBELL.

Witnesses:

James M. Hnnnuss,

Manna Fan-rue.