Year: 1886

page_text: I, HERBERT JOHN ALLISON, of the firm of Allison Brothers, of 52 Chancery
Lane, London, in the County of Middlesex, Patent Agents, do hereby declare the
nature of this invention, which has been communicated to me from abroad by
Andrew Jackson Lytle, of Hillsboro, Ohio, United States of America, Gentleman,
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement, reference being had to the accom-
panying drawings
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Figure 1, is a plan view of the shears partly in section.
Figure 2, is a cross section of the blades, on line x-x figure 1.
Figure 3, is a section on line y-y figure 1.
Figure 4, shows a modification of the blades.
Figure 5, shows a modification of the attachment of the blades to the handle.
This invention relates to improvements in sheep shears, and it consists in the
novel construction of the same as will be fully understood from the following
description and particularly pointed out in the claims. A, A¹, designate the angular
blades of the shears, which are preferably constructed with tapered shanks C, C,
fitted into corresponding sockets in the ends of the shear arms B, B, and held
therein by means of set screws, as shown in figure 1, or the blades may have their
shanks formed into eyes adapted to fit between ears formed on the ends of the
handles, and held therein by screws, as shown in figure 5.
The under blade A¹ is constructed with longitudinal ribs e on its bottom side
which ribs converge to a tapered point at the front of the blades, as shown in
figure 1.
The upper blade A is formed with two ribs e, on its upper side, similar to the
ribs e on the blade A¹.
The blades A, A¹, may be provided with ribs b, b¹, respectively as shown in
figure 2. These ribs b, b¹, and e, e, not only stiffen the blades and admit of their
being made of very thin steel, but they also keep the backs and edges of the blades
from contact with the skin of the animal during the 'shearing operation.
The ribs may be formed by swaging, or they may be formed by curving the
edges of the blades as shown in figure 4.

page_text: B, B, are the handles the rear ends of which are curved as shown, and united by
a suitable pivot joint h. In front of this joint h and rigidly secured to one of the
arms B of the shears is a pin g which is screw threaded and on which is applied
an adjustable thumb nut y. To the opposite arm B is fixed a coiled spring f
which receives in one end the said screw pin g, and is attached to a collar f¹, loosely
applied on this pin.
By adjusting the thumb nut y, the tension of the spring may be regulated.
If desirable the adjusting device for the spring might be dispensed with, but
I prefer making the shears as described.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
1. In a sheep shears, the combination with the arms bowed and jointed at their
rear ends and provided with a coiled spreading spring, of the blades constructed
with guarding reenforcing ribs, and shanks, whereby, by means of said shanks,
they. are removably secured to the arms, all substantially as specified..
2. A sheep shears having blades constructed with guarding and reenforcing ribs,
and tapering shanks, shear arms, bowed and jointed at their rear ends, a coiled
spreading spring, a screw threaded guide pin, a sliding collar and an adjustable
thumb screw thereon, all constructed and adapted to operate substantially as and
for the purposes described.
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