Improvements in Adjustable Wrenches.
Year: 1889

page_text: Date of Application, 4th Apr., 1889
Complete Specification Left, 4th Jan., 1890-Accepted, 8th Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Adjustable Wrenches.
We JOSEPH CASE of 268 St. Philips Road Sheffield in the County of York, Vice
Maker and HARRY ALLCARD of Albert Works, Penistone Road, Sheffield, aforesaid,
Manufacturer do hereby declare the nature of this invention to be as follows :--
Our invention is for improvements in the construction of adjustable wrenches, and
has for its object to equalise the strain on the various parts of the wrench, and to
reduce the cost of production.
The complete wrench consists of two principal parts, one being the fixed jaw or
head upon the end of the body and handle, the other being the movable jaw which
slides upon the body.
The handle, we prefer to make in one continuous piece with the body and
fixed jaw or head, but we may attach a separate handle (of wood for example) if
desirable.
The body is the intermediate part between the handle and the fixed jaw or head, its
sides being parallel and having a longitudinal slot or space extending from the handle
or thereabouts, to the underside of the head, through which a corresponding rectangular
or other shaped hole is made to meet the end of the slot before mentioned.
A suitable adjusting screw is made with a shank to fit in the hole passing through
the head or fixed jaw, the screw itself reaching down to the end of the slot near the
handle or thereabouts, it may be secured by a pin passed through it and through the
head or by other like contrivance.
The sliding jaw which fits and slides upon the body has a suitable hole made
through it to receive a milled nut or roller, which works upon the threads of the screw,
and when turned round causes the sliding jaw to travel up or down the body, as the
case may be.
ROBT. F. DRURY,
Bank Buildings, George Street, Sheffield, Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Adjustable Wrenches.
We, JOSEPH CASE, of 268 St. Philips Road Sheffield in the County of York, Vice
Maker, and HARRY ALLOARD, of Albert Works, Penistone Road, Sheffield, aforesaid,
Manufacturer 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 is for improvements in the construction of adjustable wrenches,
having for its object to equalise the strain on the various parts of the wrench, and to
reduce the cost of production.
The annexed sheet of drawings represents the complete wrench, and clearly
illustrates our invention.
The complete wrench consists of two principal parts, one being the fixed jaw A,
with the body B, and the handle C, and the other the sliding or adjustable jaw D,
which slides upon the body B; there is also a third part, namely the screw E, with
its nut F.
We prefer to make the handle C, in one continuous piece with the body B, and
jaw A, but if preferred or desirable we may attach a wood handle, or a metal handle
of different form to that shown, as the handle itself is not a material part of our
invention.

page_text: The body B, is made with a central longitudinal opening G, extending from the
handle or thereabouts to the underside of the fixed jaw A, through which a corre
ponding rectangular or other shaped hole is made to continue the opening G, and is
indicated by dotted lines.
The screw E is made with a shank; which fits into the hole beforementioned as
passing through the fixed jaw A, and it may be secured therein by a pin passed
through it, or by other equivalent means.
•
The sliding jaw D, has an opening H made through both its sides to receive and
engage with the nut. F, which is conveniently made cylindrical, and milled to render
it easy to turn.
When therefore the nut is turned round upon the fixed screw it causes the jaw D to
move either towards, or from the other or fixed jaw as the case may be.
"
Having now particularly described and ascertained the nature of our inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is
A wrench having a sliding jaw D, capable of longitudinal adjustment by means of
a nut C, fitted into an opening in said jaw, and working upon a central screw E,
substantially as herein before described and illustrated.
ROBT. F. DRURY, Fel. Inst. P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicants.