Year: 1887

page_text: I HENRY EDWARD NEWTON of the Office for Patents, 6 Bream's. Buildings,
Chancery Lane in the County of Middlesex, Civil Engineer, do hereby declare the
nature of this invention and in what manner the same is to be performed, to he
particularly described and ascertained in and by the following statement :—
This invention of improvements in sheep shearing machines relates first to the
parts used for converting the rotary motion of the-umin-spindle-of-the-machine-into-n
reciprocating motion, so-us-to-work and carry construction and arrangement of a forked
arm which works the cutter to and fro across the face of the comb and, secondly,
to the parts employed for putting the necessary pressure on the reciprocating cutter.
In this machine, the comb projects from, and is secured to the fore part of the
casing, and the cutter traverses to and fro across it, the main spindle being supported
in the handle of the machine, and connected at its back end with an universal gear
coupling, the outer back part of which is attached to the flexible driving shaft.
Motion is imparted to the cutter by a balanced crank arranged at the front end of the
main spindle, such crank having on its pin a hardened steel roller. In these particulars,
however, there is no novelty.
The following is a description of the parts which embrace the present improve-
ments. First In this machine, the fork or oscillating arm which works the cutter
is pivotted at a point near the back of the casing, and has motion imparted to it
about. midway between such pivot and the cutting knife. Secondly, motion is
imparted to said fork by a balanced crank arranged at the front end of the main
spindle, such crunk having on its pin a hardened the steel roller which on the crank
pin works between a hardened steel cheek piece sprung into the fork; such cheek
piece, roller, and crank pin being moveable, in order that they may be easily renewed
when worn. Thirdly, the pressure is applied to the fork (which puts the desired
pressure on the cutter) through the agency of a spherical-ended stud or
piece," the lower end or pivot of which bears in a foot piece in the fork at a point
in front of the cheek-piece, its top being arranged within a screwed cap piece, the
bearing surface of which is perfectly flat; so that at any position of the stroke of
mushroom-

page_text: the fork, the distance is precisely the same from the spherical crown or top of the
"mushroom" to its pivot in the fork arm. The cap is furnished with a milled edge
or toothed head, with which a spring catch engages so as to lock the cap at the
desired position.
=
Referring to the drawing :-
Fig. 1 is a plan view of a sheep-shearing machine constructed according to this
invention.
Fig. 2 a central longitudinal section.
Fig. 3 is a plan of the front portion of the machine, with the cover removed, and―
Fig. 4 a plan of the under side of such front part.
Fig. 5 is a side view of the fork piece, and
Fig. 6 is a cross section on the line a a Fig. 5.
Fig. 7 is an end view of the balanced crank.
In these Figures, A is the casing of the machine, with which is formed a tubular
handle A', in which, and in the casing, are the bearings for the support of the main
spindle B, to which a rotary motion is imparted by the universal gear coupling C.
D is a balanced crank, which is formed on, or made a fixture on the end part of the
spindle B. D' is a pin screwed into the crank D, and 12 is a hardened steel roller on
such crank pin. E is the fork or oscillating arm pivotted at E', and recessed or
slotted at about its centre to receive a cheek piece E2. This piece is sprung into its
place, and has side grooves E³ in it, to fit similar sized ledges on the fork (see
Fig. 6). The front of the fork has three fingers formed on it, each having a pin E
to fit in suitable holes in the reciprocating cutter F. The centre one E³ of such
fingers is formed of a spring secured to the fork or arm E by the screw E.
G is a spherical-headed pressure stud or "mushroom piece," the pivot or lower end
of which works in the foot step E7 sunk into the fork E. The radius of the spherical
head G' is taken from the pivot end G2, and such head is supported in a cap piece A²,
which is screwed into a suitable hole in the cover A³ of the casing A. A is a milled
or toothed head to the screw cap piece A²; and A5 is a spring lock catch which
engages with the recesses or notches of the head A. The cover A³ is secured in
position by the screw pins A and A', Figs. 1 and 2, the former being screwed in
from the top, and the latter from the bottom of the casing, which has a slot A³
in its front end to allow for the travel of the fork arm E. H is the comb or
stationary cutter secured to the bottom of the casing by the screws H³. The
universal gear coupling C consists of a swivel C₁ attached to the back end of the
handle by a bush C, which also forms the bearing for spindle B. The spindle B
has one of the gear wheels (3 screwed on its end, the other being screwed on the
end of spindle C, supported in the swivel piece C, and the end of such spindle C4
has an eye for attachment to the core of the flexible shaft, the outer flexible
tubing of which is attached to the screwed end of the swivel-piece C, which is con-
nected by screwed pins Ce with the swivel C. C is a screwed oil plug in the neck
of the coupling, and A' is a screwed oil plug in the handle.
The mode of operation is as follows
:-
Motion is imparted to the spindle C, which communicates it to the main spindle B,
at whose fore end is the crank D, which in turn gives an oscillating motion to the
fork E, which thus moves the cutter F to and fro across the face of the comb H, so
that when applied to a sheep, its wool is cut or clipped off as fast as it is brought
between the teeth of the comb H and the teeth of the cutter F. The pressure upon
the cutter is adjusted by means of the screw cap A2, which presses on the top
spherical end of the stud G. This stud, as before stated, always holds the fork at an
equal distance from the screw cap at every part of its stroke.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed as communicated to me by my
foreign correspondents, I declare that what I claim is :-
1st. The construction of the oscillating fork with its centre finger formed of a
spring.

page_text: 2nd. Pivotting the forked arm behind the crank substantially as herein described
and explained, and as illustrated in the drawings.
3rd. The construction of such forked arm with a moveable cheek-piece attached
to it at about its centre to receive the crank pin roller, substantially as herein described
and explained, and as illustrated in the drawings.
4th. The spherical-headed pressure stud in combination with the forked arm, as
claimed, and a cap piece with or without a spring catch, substantially as described
and as illustrated in the drawings.
5th. The use of a balanced crank placed at the end of the driving spindle of
shearing machines in combination with a forked-arm-and-entter, for the purpose of
giving a reciprocating motion to such cutter, whether the crank have a pin and loose
roller or not, and whether the forked arm be made precisely as described or not.
NEWTON & SON,
Agents for the Applicant.

page_text: Date of Application, 26th July, 1887
Specification Accepted, 20th Sept., 1887.
[Communicated from abroad by THE AUSTRALIAN ELECTRIC COMPANY, Limited, of
Sandridge Road, South Melbourne, in the Colony of Victoria.]
I HENRY EDWARD NEWTON of the Office for Patents, 6 Bream's Buildings,
Chancery Lane in the County of Middlesex, Civil Engineer, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This invention of improvements in sheep shearing machines relates first to the
parts used for converting the rotary motion of the main spindle of the machine into a
reciprocating motion, so as to work and carry the cutter to and fro across the face of
the comb; and, secondly, to the parts employed for putting the necessary pressure on
the reciprocating cutter.
In this machine, the comb projects from, and is secured to the fore part of the
casing, and the cutter traverses to and fro across it, the main spindle being supported
in the handle of the machine, and connected at its back end with an universal gear
coupling, the outer back part of which is attached to the flexible driving shaft.
these particulars, however, there is no novelty.
In
The following is a description of the parts which embrace the present improve-
ments. First: In this machine, the fork or oscillating arm which works the cutter
is pivotted at a point near the back of the casing, and has motion imparted to it
about midway between such pivot and the cutting knife. Secondly, motion is
imparted to said fork by a balanced crank arranged at the front end of the main
spindle, such crank having on its pin a hardened steel roller which works between a
hardened steel check piece sprung into the fork; such check piece, roller, and crank
pin being moveable, in order that they may be easily renewed when worn. Thirdly,
the pressure is applied to the fork (which puts the desired pressure on the cutter)
through the agency of a spherical-ended stud or "mushroom-piece," the lower end or
pivot of which bears in a foot piece in the fork at a point in front of the check-piece,
its top being arranged within a screwed cap piece, the bearing surface of which is
perfectly flat; so that at any position of the stroke of the fork, the distance is pre-
"
mushroom to its pivot in
cisely the same from the spherical crown or top of the "

page_text: '
the fork arm.
The cap is furnished with a milled edged or toothed head, with which
a spring catch engages so as to lock the cap at the desired position.
Referring to the drawing:-
Fig. 1 is a plan view of a sheep-shearing machine constructed according to this
invention.
Fig. 2 a central longitudinal section.
Fig. 3 is a plan of the front portion of the machine, with the cover removed, and-
Fig. 4 a plan of the under side of such front part.
Fig. 5.
Fig. 5 is a side view of the fork piece, and
Fig. G is a cross section on the line a a
Fig. 7 is an end view of the balanced crank.
In these Figures, A is the casing of the machine, with which is formed a tubular
handle A, in which, and in the casing, are the bearings for the support of the main
spindle B, to which a rotary motion is imparted by the universal gear coupling C.
D is a balanced crank, which is formed on, or made a fixture on the end part of the
spindle B. D¹ is a pin screwed into crank D, and D2 is a hardened steel roller on
such crank pin. E is the fork or oscillating arm pivotted at E', and recessed or
slotted at about its centre to receive a check piece E2. This piece is sprung into its
place, and has side grooves E3 in it, to fit similar sized ledges on the fork (see
Fig. 6). The front of the fork has three fingers formed on it, each having a pin E
to fit in suitable holes in the reciprocating cutter F. The centre one E of such
fingers is formed of a spring secured to the fork or arm E by the screw E..
G is a spherical-headed pressure stud or "mushroom piece," the pivot or lower end
of which works in the foot step E' sunk into the fork E. The radius of the spherical
head G¹ is taken from the pivot end G2, and such head is supported in a cap piece A²,
which is screwed into a suitable hole in the cover A³ of the casing A. A is a milled
or toothed head to the screw cap piece A²; and A5 is a spring lock catch which
engages with the recesses or notches of the head A. The cover A³ is secured in
position by the screw pins A° and A7, Figs. 1 and 2, the former being screwed in
from the top, and the latter from the bottom of the casing, which has a slot A³
in its front end to allow for the travel of the fork arm E. H is the comb or
stationary cutter secured to the bottom of the casing by the screws H'. The
universal gear coupling C consists of a swivel C₁ attached to the back end of the.
handle by a bush C2, which also forms the bearing for spindle B. The spindle B
has one of the gear wheels C³ screwed on its end, the other being screwed on the
end of spindle C4, supported in the swivel piece 05, and the end of such spindle (1
has an eye for attachmend to the core of the flexible shaft, the outer flexible
tubing of which is attached to the screwed end of the swivel piece C³, which is con-
nected by screwed pins C with the swivel C. C is a screwed oil plug in the neck
of the coupling, and A³ is a screwed oil plug in the handle.
The mode of operation is as follows :-
Motion is imparted to the spindle C, which communicates it to the main spindle B,
at whose fore end is the crank D, which in turn gives an oscillating motion to the
fork E, which thus moves the cutter F to and fro across the face of the comb H, so
that when applied to a sheep, its wool is cut or clipped off as fast as it is brought
between the teeth of the comb H and the teeth of the cutter F. The pressure upon
the cutter is adjusted by means of the screw cap A2, which presses on the top
spherical end of the stud G. This stud, as before stated, always holds the fork at an.
equal distance from the screw cap at every part of its stroke.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed as communicated to me by my
foreign correspondents, I declare that what I claim is :-
1st. The construction of the oscillating fork with its centre finger formed of a
spring.
2nd. Pivotting the forked arm behind the crank substantially as herein described
and explained, and as illustrated in the drawings.

page_text: 3rd. The construction of such forked arm with a moveable check-piece attached
to it about its centre to receive the crank pin roller, substantially as herein described
and explained, and as illustrated in the drawings.
4th. The spherical-headed pressure stud in combination with the forked arm, as
claimed, and a cap piece with or without a spring catch, substantially as described
and as illustrated in the drawings.
5th. The use of a balanced crank placed at the end of the driving spindle of
shearing machines in combination with a forked arm and cutter, for the purpose of
giving a reciprocating motion to such cutter, whether the crank have a pin and loose
roller or not, and whether the forked arm be made precisely as described or not.
Dated this 26th day of July 1887.
NEWTON & SON,
Agents for the Applicant.