Improvements in Shears or Clippers for Sheep and other Animals.
Year: 1891

page_text: Date of Application, 28th Feb., 1891
Complete Specification Left, 26th Nov., 1891-Accepted, 2nd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Shears or Clippers for Sheep and other Animals.
I, GRIFFITH BREWER of 33 Chancery Lane in the County of London,
Mechanical Draughtsman do hereby declare the nature of this invention (a communi-
cation to me from abroad by Messrs. L. Rochet & Co. 42 Boulevard Bonne Nouvelle,
Paris, France, Manufacturers) to be as follows:-
Shears and clippers for sheep and other animals worked by compressed air
possess advantages over other systems in use, in that they avoid overheating
usually produced by the mechanism employed for transmitting the movement to
the knife by this invention the air driving the piston produces by its expansion
when escaping (which takes place onto the knife itself) a lowering of the temperature
thereby efficiently reducing the inconveniences arising from overheating. More-
over the escaping current of air which is very powerful drives dust and other
extraneous matters which get between the knife and the comb and do not consequently
put the machine out of working order.
This new shearing or clipping machine, forming the subject of this invention, is
distinguished from other systems by an improved arrangement of the parts.
The shearing or clipping machine is composed of a box which forms the body of
the machine and serves as the holder for working and which contains all the movable
parts or working mechanism.
In the interior of the box there is provided an impulse lever free to oscillate at
one end, being carried on tempered steel points and carrying the knife at the other
end, which works on the comb fixed to the body of the machine.
The lever which passes through the motor piston is there provided with a
ball on which two tempered steel screws on the piston abut, by turning which
in the required direction the position of the piston relative to the lever can be
regulated.
This same lever is surmounted by a movable pivot by means of which on screwing
down a screw head, the degree of friction of the knife on the comb can he
regulated and adjusted.
The compressed air or other gas admitted works the valve which distributes
alternately on each side of the piston, then it passes by the discharge orifice onto
the comb and on the knife of the shearing or clipping machine.
ليكم
1001
G. BREWER,
By Brewer & Son,
Agents.
COMPLETE SPECIFICATION.
Improvements in Shears or Clippers for Sheep and other Animals.
I GRIFFITH BREWER of 33 Chancery Lane in the County of London Mechanical
Draughtsman do hereby declare the nature of this invention (a communication to
me from abroad by Messrs. L. Rochet & Co., 42 Boulevard Bonne Nouvelle Paris,
France, Manufacturers) and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
in
Shears and clippers for sheep and other animals worked by compressed air
according to this invention possess advantages over other systems in use,
that they avoid overheating usually produced by the mechanism employed for
ר,

page_text: transmitting the movement to the knife by this invention the air driving the
piston produces by its expansion when escaping (which takes place on to the knife
itself) a lowering of the temperature, thereby efficiently reducing the inconveniences
arising from overheating. Moreover the escaping current of air which is very
powerful drives away dust and other extraneous matters which might get between
the knife and the comb and consequently put the machine out of working order.
This new shearing or clipping machine forming the subject of this invention
is distinguished from other systems by an improved arrangement of the parts.
In the accompanying drawings
Figure 1 is an elevation of a shearing or clipping machine constructed according
to this invention.
Figure 2 is a longitudinal section through the line A B of Figure 3 of the
apparatus constructed according to the invention.
Figure 3 is a view in plan and showing the motor cylinder in horizontal section
through lines CD and E F.
Figure is a section on the line M N of Figure 2 of the air distribution
arrangement in the motor.
The shearing or clipping machine is composed of a box G which forms the body.
of the machine and serves as the holder for working and which contains all the
movable parts or working mechanism.
In the interior of the box G there is provided an impulse lever L free to
oscillate at one end, being carried on tempered steel points m and carrying the
knife O at the other end which works on the comb fixed to the body of the
machine.
The lever L which passes through the motor piston H is there provided with
a ball on which two tempered steel screws VV on the piston abut, by turning
which in the required direction the position of the piston relative to the lever can
be regulated. This same lever is surmounted by a movable pivot S by means of
which on screwing down a screw head T, the degree of friction of the knife ( on
the comb n can be regulated and adjusted.
The operation is as follows:-
The compressed air or other gas admitted by the passage P works the valve K
which distributes air alternately on each side of the piston H then the air passes by
the discharge orifice R on to the comb and on to the knife of the shearing or clipping
machine..
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed I declare that what I
claim is
1. In a machine for shearing sheep, clipping horses and other animals, an
arrangement by which the motor piston H acts on the end of a lever L which
works the knife O in the vicinity of the said knife and comb in such manner that
the air which serves as the motor agent of the piston escapes on the working parts
of the machine, that is to say, on the knife and on the comb, thereby driving the
dust and wool, and keeping these parts cool, as set forth.
2. In a sheep and other shearing machine, a knife carrying lever L, oscillating
about one of its ends on an axis m placed in the interior of the hollow handle of
the apparatus and worked at its other end by means of a motor piston driven.by
compressed air or other gas in such manner that the point of application of the
power is as near as possible to the point of application of the resistance, that is of
the knife and comb, as set forth.
3. In a sheep and other shearing machine, a mode of adjusting the motor
piston H on the knife carrying lever L composed of two steel tempered screws V. VI
placed centrally in the piston and abutting on each side of the ball head of the
lever and in such manner as to render the lever capable of having" its position
changed and adjusted when that is necessary for regulating the piston on the lever
as set forth.

page_text: 4. In sheep shearing and other like shearing machines the arrangement of an
oscillating device for tightening the knife placed almost above the latter permitting
also by the aid of slight pressure of avoiding the coming apart of the knife and
comb and preventing the accidental interposition of dust or other extraneous matters
between these two parts, as set forth.
5. In sheep shearing and other like shearing machines, the particular arrange-
ment of the air escape orifice R for the air coming from the motor piston which
goes directly on to the knife and reduces the temperature suitable to the proper
working of the machine as set forth.
1001
BREWER & SON,
Agents.