US527309A - Castrating-instrument - Google Patents

Description

(No Model.)

J. E. ANDERSON. GASTRATING INSTRUMENT.

Nb. 527,309. Patented Oct. 9, 1894.

lNVENTOH dW Ja/m Eafizciersoia v By M MW ATTORNEYS.

UNITED STATES PATENT OFFICE.

JOHN E. ANDERSON, OF CARBON, WYOMING.

CASTRATING-INSTRUMENTf SPECIFICATION forming part of Letters Patent N 0. 527,309, dated. October 9, 1894.

Application filed June 21, 1894. Serial No. 515,249. (No model.)

To aZZ whom it may concern:

Be it known that 1, JOHN E. ANDERSON, of Carbon, in the county of Carbon, State of Wyoming, have invented a new and Improved Oastrating-Instrument for Veterinary Use, of which the following is a specification.

It is the object of my invention to provide an instrument by which the castration of young domestic animals, more especially lambs, may be expeditiously and safely effected.

The construction and operation of the instrument are as hereinafter described, reference being had to accompanying'drawings, in

whichi Figure 1 is a top plan view of my improvement. Fig. 2 is a similar view of the same in closed position. Fig. 3 is a side elevation of the same. Fig. 4; is a cross section on the line 4-4:, Fig. 2.

The instrument consists of spring arms, or jaws, A, A, having convergent free ends, a, and two shearlike cutters, r blades, B, B,

. which are pivoted together and attached to said jaws, and arranged longitudinally between them, as. hereinafter described. The jaws, A, A, are practically rigid, and connected at one, end by a curved spring, 0, so that the instrument so far simulates an ordinary sheep-shears. The free ends, a, of the jaws are curved inward, and also broadened and turned outward to form flat abutting surfaces, as shown. One of the shear or cutting blades, B, is rigidly attached to a flange, a, formed on one of the longitudinal side edges of a jaw, A, and the other corresponding blade,

B, has a sliding attachment to a similar flange,

ta on the opposite jaw, A. Such attachment is effected by providing the blade,B, with a lengthwise slot, 1), into which a pin, a projects from the said flange, a as shown best in Fig. 4.

The inner ends of the blades, B, B, are pivoted together, and hence open and close with the jaws, A, A, as will be readily understood.

It will be noted, that the jaws meet after the blades have made their complete cut, but, by meeting, prevent the edges of the blades striking upon the adjacent portions of the shown in Fig. 2, whereby the scrotum is cut or slit to the required extent. The scrotum is then pushed up to expose the testicles, and

the instrument then applied by holding it vertically and clasping the jaws A A, upon the arteries, veins and spermatic cords, at a point close to the testicles, and then, by pulling downward, the latter are quickly severed from all connection with such arteries, veins and cords.

What I claim is- 1. A veterinary castrating instrument,composedof spring jaws,having their broad free ends curved inward, and two shear-like blades connected with and arranged between the jaws, and pivoted together at their rear ends, as shown and described, whereby the jaws and blades open simultaneously, and the blades make their complete cut before the jaws close, but their edges are'prevented from contact with the jaws, as specified.

, 2. The improved castrating instrument, composed of spring jaws having their free ends curved inward as shown, and two shearlike blades pivoted together and connected with the jaws, and arranged longitudinally between them in rear of their converging ends, as shown and described.

3. The improved castrating instrument, composed of spring jaws, having converging free ends and inturned longitudinal flanges on opposite side edges, a cutting blade riveted to one of said flanges, and the other blade having a slot-and-pin connection with the opposite flange, as shown and described.

JOHN E. ANDERSON. Witnesses: I

GEORGE TOLMIE, ALEXANDER SMART.

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