US244810A - Animal shears - Google Patents

Description

(No Model.)

N. L. KING.-

ANIMAL SHEARS. No. 244,810. Patented July 28,1881.

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- UNITED STATES lPATENT OEEicE.

NATHAN L. KING, F cATsKILL, NEW Yoan.

ANIMAL-SHEARS.

SPECIFICATION formingpart of Letters Patent No. 244,810, dated July 26, 1881.

Application tiled April 29, 1881. (No model.)

is a specification.

This invention relates to the construction of an instrument or machine to be used for shearing and clipping animals, and is in the nature of an improvement upon my Patent of December 18, 1877, No. 198,303, the object being to hang the cutter-blades ofthe machine so that they will have an easier motion, and to increase the efiiciency of the machine by combining with it certain devieesas hereinafter described, for producing the requisite reciprocating motion of the parts thereof which govern the motion of its cutting devices, whereby lunch greater rapidity of action is obtained.

In the dra-wings, forming part of this specication, Figure 1 is a side elevation, partly in section, of the shearingmachine embodying my improvements. Fig. 2 is a plan view of the shearing parts ofthe machine. Fig. 3 is a. transverse section througlrthe line .fr x, Fig. 1.

In the drawings, B is the handle. A is the toothed head attached to the handle. C G are two curved cutter-blades pivoted to handle-B. D is a curved-edged plate, with cutting-edges, secured to ba r f. e are screw-studs in the end of handle B, by which the ends of the cutterblades C are pivoted to said handle. c2122 are studs in plate D, passing up through slots in the cuttenblades C C, as shown, and having nuts on their ends, and between the latter and said blades the spring-Washers z e. fis a longitudinally-reciprocating bar in handle B. a is a pressure-screw. d is a shaft-support in said handle. b is a shaft-nut in the end of handle B. is a shaft. h is a cam fixed on shaft i. ois a guide-plate. through plate o and barf, its end entering the groove in cam h, and having the rollere thereon. sis a cover on the under side of handle B.

a is a screw-stud passingpatent. In the improved construction herein shown, however, the two curved cutter-blades C O are pivoted to the handle B, instead of to the head A, as in said patent, and the rear ends of said blades are pivoted to handle B by the screw-studs e c. This change in the manner of pivoting and operating said cutter-blades provides for dispensing with the slots in plate D of said patent, in which studs on the cutterblades operated to give motion to the latter as said plate was moved back and forth, and the said studs are` replaced herein with studs e2, secured in plate D, projecting up through slots in said blades, and provided with nuts and spring-washers z z, whereby said blades can be adjusted to operate better in relation to the sharp edge of plate D, and the rapid movements of said cutter-blades are easily produced. The barj', whose movements longitudinally in handle B are produced by the revolution otlcam h, is secured to plate D by screw t.

Within handle B, under cam h, are formed two-parallel ways, as seen in Fig. 3, to which the rear end of barfis secured, and by which it is kept in line. The rear end of said lever lying on the top ot' said ways, and the guideplate o lying np against the under side thereof, are each half-grooved, as shown, and together form a groove on each edge in which the edges of said ways project, and the end of said bar and said plate o are secured in said position by the screw-stud u, whose end is left smooth, and has a friction-roller, o, upon it, and said end of screw a with roller c enter the groove around cam h, as shown.

The shaft-support d in handle B is properly perforated to receive the end of shaft i, upon .which cam h is xed, and said shaft projects .beyond the'end of said handle and is screwthreaded, as shown, to provide for the attachment thereto of any convenient device for rotatingit and cam h. The rear end of shaftiis supported by a perforated nut, b, which is screwed -into the handle, as shown.

A pressure-screw., a, is placed in the upper side of handleB, over barf, bywhich the proper pressure of plate D against the face of the head A is obtained.

Reciprocating longitudinal movements of barf operate to produce the same reslts in the plate D, cutter-blades C, and head A, in

shearing and clipping animals, as are described in said patent, and said reciprocating movements of bar f are produced by the rotary niotion of cani 7i, with which said bar is connected by stud o1, the rear end of said bar being steadily guided, as heretofore described, by the Ways in the handle to which it is secured.

A removable cover, s, is secured upon the under side of handle B, covering an opening through Which access is had to the parts Within said handle.

What I claim as luy invention is- 1. The combination, with the handle B, and

of' the bar f, ot' the plate D, having the studs o2 set therein and secured to said bar, and of 15 the curved slotted cutter-blades C C, pivoted to said handle, substantially as set forth.

2. In combination, handle B, bar f, plate D, provided with the studs r2, the curved slotted cutter-blades C C, and can] 7i., hung upon 2o shaft i', Within said handle, substantially as set forth.

NATHAN L. KING. Witnesses z H. A. CHAPIN, J. D. GARFIELD.

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