IMPROVEMENTS IN SHEARS AND THE CONSTRUCTION THEREOF
Year: 1884

page_text: I WILLIAM WILKINSON of Spring Works Grimesthorpe Sheffield Yorkshire, .
Shear Manufacturer do bereby declare the nature of my said Invention for
"IMPROVEMENTS IN SHEARS AND THE CONSTRUCTION THEREOF" to be as follows:-
The object of this Invention is to construct a cheap forin of shear.
In the improved shear the shanks are flat being cranked or twisted at or near
to the bow so as to bring the edges thereof in a line with the flat sides of
the bow.
The stops for the blades are of the ordinary form.
In the construction of what is known as a solid shear the blank is flyed out,
from a flat sheet of steel, with the cutting edges of the blados in the same direction,
and one shank is cranked or twisted to the right, and the other shank is similarly
twisted to the left, and-the bow being bent in the ordinary manner-the blades
are brought together with their cutting edges contiguous. In cranking the shanks
they are turned one fourth part of a revolution.
Shears in halves, joined at the centre of the bow, are constructed as above
described.

page_text: COMPLETE SPECIFICATION.
I, WILLIAM WILKINSON, of Spring Works, Grimesthorpe, Sheffield, in the County
of York, Shear Manufacturer, do hereby declare the nature of my said invention
for "IMPROVEMENTS IN SHEARS AND THE CONSTRUCTION THEREOF," and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
.
The object in the construction of this invention is to form a cheap shear.
In the construction of the improved shear the shanks are flat being cranked or
twisted at or near the bow (or near the blade, as shown in the accompanying
drawings) so as to bring the edges thereof in a line with the flat sides of the bow.
The stops for the blades are of the ordinary form.
In the construction of what is known as a solid shear, the blank is flyed out
from a flat sheet of steel with the cutting edges of the blades in the same direction,
and one shank is cranked or twisted to the right, and the other to the left, and the
bow being bent in the ordinary manner the blades are brought together with their
cutting edges contiguous.
Shears in balves, joined at tho- centro of the bow, are constructed as above
described.
The accompanying drawings illustrate my invention :-
Fig. 1. is a view as flyed out of a flat sheet of steel.
Fig. 2. is a view shewing one half at the centre of the bow, which is flyed out
of the scrap pieces of steel.
Figs. 3. 4. are views shewing the coupling of the two halves above described.
Fig. 5. is a side view shewing the shank cranked or twisted at the bow.
Fig. 6. is a side view showing the shank cranked or twisted at the blade end.
Fig. 7. is a plan of shear complete.
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
Firstly, for improvements in shears of all kinds and in the construction thereof
substantially as herein described.
Secondly, In the construction of what is known as a solid shear, the blank being
flyed out from flat sheet steel or other equivalent metal, with the shanks cranked
or twisted at or near the bow or near the blade end.
Thirdly, in the construction of shears as firstly and secondly claimed and as
illustrated by the accompanying drawings.
Dated this 26th day of February 1885.