A Combination Tool for Setting, Cramping, and otherwise Adjusting Hand Sheep-shears.
Year: 1899

page_text: Date of Application, 27th Feb., 1899
Complete Specification Left, 6th Nov., 1899-Accepted, 23rd Dec., 1899
PROVISIONAL
DI BUITIVATION.
A Combination Tool for Setting, Cramping, and otherwise Adjusting
Hand Sheep-shears.
I, JOHN TUCKER, of Mount Gipps Station, near Broken Hill, in the Colony
of New South Wales, Blacksmith, do hereby declare the nature of this invention
to be as follows:-
This invention consists of a combination tool for the use of shearers for setting,
cramping and otherwise adjusting their shears. It can be advantageously applied
to each of the following purposes namely, setting the angle of the blades, cramp-
ing the shears, breaking off the knockers or breaking out pieces from the bow.
In order that my invention may be clearly understood I will describe the same
with reference to the accompanying drawings, in which―
Figure 1 shews the tool in position for cramping the shear blade.
Figure 2 shews the handle fitted to one of the shear blades for setting same.
Figure 3 shews the method of breaking off portion of a knocker.
Figure 4 shews the method of breaking out a piece from the handle bow.
The appliance is made preferably of wrought or malleable cast steel.
The body A is made in the form a bridge adapted to fit upon and engage the
back of the blade and its shank. One end B has a recessed groove or slot which
engages the ridge or feather along the back of the blade and the other end C is
bifurcated and fits over the shank to which it is secured for the purpose of the
operation by a pin D passing through the two ends of the bifurcation.
In the centre of the bridge is a screwthreaded boss E with a vertical screw F
on the lower end of which is a suitable bearing block H adapted to fit on to the
back of the blade while the upper end is provided with a handle K whereby the
screw may be rotated. This handle has at its centre a square socket which fits
upon a square on the head of the screw F to which it is secured by a split pin M.
In a modification of this arrangement I make the handle slidable to and fro
through a hole in the head of the screw so that almost its while length may be
moved to one side or the other.
The two ends of this handle are flattened out and provided with openings or
slots. The opening P at one end is specially shaped to fit upon the blade for
setting the same in or out. The opening R at the other end is a simple slot for
breaking out knockers from the blades of the shear or pieces from the bow. I
have shewn two openings R of different size to take different thickness of material.
The methods of using my appliance are as follows:-
When it is desired to set one of the shear blades in or out the end of the handle
with the opening P' which is shaped for that purpose is placed in position on the
blade as shewn in Fig. 2 and the handle pulled over until the necessary set has
been given.
when it is desired to break out a portion of a knocker the knocker is placed in
the opening R in the other end of the handle as shewn in Fig. 3 which is
then pulled over and the piece broken out. It is sometimes desirable to make

page_text: a slight notch with a file before breaking out the piece. If the handle bow is too
stiff pieces may be broken out from it in the same way as shewn in Fig. 4.
is
When it is desired to cramp the shear, that is to set the point outwards and the
heel of the blade inwards, the tool is fitted as shewn in Fig. 1. The screw
rotated to bring the bearing block H back to the bridge and the pin D is removed
from the bifurcated end of the same. The slotted end B of the bridge is then
placed on the front of the blade and slid backwards until the ridge or feather on
the back of the blade is caught in the recess of the slot. The bifurcated end C of
the bridge piece now fits over the shank of the blade and is secured in position
by the pin B. If the screw F be now rotated the bearing block H is brought
against the back of the blade and the necessary adjustment thus made.
Dated this 27th day of February 1890
A. M. & WM. CLARK,.
Chartered Patent Agents, 53, Chancery Lane, London.
A Combination Tool for Setting, Cramping, and otherwise Adjusting
Hand Sheep-shears.
I, JOHN TUCKER, of Mount Gipps Station, near‍ Broken Hill, in the Colony
of New South Wales, Blacksmith, do hereby declare the nature of my 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 consists of a combination tool for the use of shearers for setting,
cramping and otherwise adjusting their shears. It can be advantageously applied
to each of the following purposes namely, setting the angle of the blades, cramp-
ing the shears, breaking off the knockers or breaking out pieces from the bow.
In order that my invention may be clearly understood I will describe the same
with reference to the drawings accompanying my provisional specification, in
which
Figure 1 shows the tool in positon for cramping the shear blade.
Figure 2 shows the handle fitted to one of the shear blades for setting same.
Figure 3 shows the method of breaking off portion of a knocker.
Figure 4 shows the method of breaking out a piece from the handle bow.
The appliance is made preferably of wrought or malleable cast steel.
The body A is made in the form of a bridge adapted to fit upon and engage the
back of the blade and its shank. One end B has a recessed groove or slot which
engages the ridge or feather along the back of the blade and the other end .C is
bifurcated and fits over the shank to which it is secured for the purpose of the
operation by a pin D passing through the two ends of the bifurcation.
:
In the centre of the bridge is a screwthreaded hoss E with a vertical screw F
on the lower end of which is a suitable bearing block H adapted to fit on to the
back of the blade while the upper end is provided with a handle K whereby the
screw may be rotated. This handle has at its centre a square socket which fits
upon a square on the head of the screw F to which it is secured by a split pin M.
In a modification of this arrangement I make the handle slidable to and fro
through a hole in the head of the screw that almost its whole length may be
moved to one side or the other.
The two ends of this handle are flattened out and provided with openings or
slots. The opening Pat one end is specially shaped to fit upon the blade for
setting the same in or out. The onening R at the other end is a simple slot for
breaking out knockers from the blades of the shear or pieces from the bow. I
have shown two openings R of different size to take different thickness of material.

page_text: The methods of using my appliance are as follows:-
When it is desired to set one of the shear blades in or out the end of the handle
with the opening 1' which is shaped for that purpose is placed in position on the
blade as shown in Fig. 2 and the handle pulled over until the necessary set has
been given.
When it is desired to break out a portion of a knocker the knocker is placed in
the opening R in the other end of the handle as shown in Fig. 3 which is
then pulled over and the piece broken out. It is sometimes desirable to make
a slight notch with a file before breaking out the piece. If the handle bow is too
stiff pieces may be broken out from it in the same way as shown in Fig. 4.
When it is desired to cramp the shear, that is to set the point outwards and the
heel of the blade inwards, the tool is fitted as shown in Fig. 1. The screw F is
rotated to bring the bearing block H back to the bridge and the pin D is removed
from the bifurcated end of the same. The slotted end B of the bridge is then
placed on the front of the blade and slid backwards until the ridge or feather on
the back of the blade is caught in the recess of the slot. The bifurcated end of
the bridge piece now fits over the shank of the blade and is secured in position
by the pin B. If the screw F be now rotated the bearing block H is brought
against the back of the blade and the necessary adjustment thus made.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A combination tool comprising a bridge piece having a recessed groove or slot
at one end adapted to engage the back of the shear blade, a bifurcation and pin
at the other end adapted to engage the shank of the shear blade, a screwthreaded
boss in the centre, and a screw fitting said screwthreaded boss and provided with a
bearing block on one end and a handle on the other end, all substantially as
described and for the purposes set forth.
2. A combination tool consisting of (a) a bridge piece having at the centre a
screw threaded boss, in one end a recessed groove or slot adapted to fit the
ridge or feather on the back of the blade and at the other end a bifurcation
adapted to fit over and be secured to the shank of the blade by a pin (6) a screw
fitting the screw threaded boss in the bridge piece and provided at one end with a
bearing block and at the other end with means for attaching a handle (c) a handle
for attaching to and rotating the said screw having its ends flattened out and
provided with openings that in one end being adapted to fit upon the place for
setting the same and that at the other end being adapted for breaking out
knockers from the blade or pieces from the handle bow substantially as described.
Dated this 6th day of November 1899.
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.