An Improved Wrench.
Year: 1890

page_text: Date of Application, 22nd Oct., 1890
Complete Specification Left, 11th May, 1891-Accepted, 13th June, 1891
PROVISIONAL SPECIFICATION.
An Improved Wrench.
We ALFRED MORTON and SAMUEL TAYLOR GEE of Middleton Junction
Iron Works Chadderton, Oldham in the County of Lancaster, Engineers do hereby
declare the nature of this invention to be as follows
This invention consists in an improved construction of wrench intended chiefly
for use as a pipe wrench but applicable also for other similar purposes.
Our improved wrench is made as usual with two jaws for gripping the pipe.
One of these jaws is made in one piece with the handle or lever which is provided
with a suitable lug or lugs carrying a pivot upon which the second jaw swings
loosely. The latter is by preference made like a straight lever serrated so as to
firmly grip the pipe when it comes between it and the fixed jaw. The other end
of this loose jaw is prolonged slightly beyond its pivot and inclined so that the
jaws can be opened very widely if required and the prolongation of the loose jaw
abuts against a suitable set screw or equivalent device so that the opening of the
jaws can be limited as required.
It will be seen that the gripping of the pipe can take place at the extreme
ends of the jaws so that the wrench can be readily used in the most confined
situations.
Also since the jaws are straight or nearly so (though serrated or notched in such
a way as to ensure a firm grip) they form an angle more or less acute according to
the adjustment of the set screw above named, and the pipe can be gripped at any
point nearer to or further from the pivot; various sizes of pipe can therefore be
operated upon without readjusting the jaws.
Dated this 21st day of October 1890.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.
COMPLETE
SPECIFICATION.
An Improved Wrench.
We ALFRED MORTON and SAMUEL TAYLOR GEE of Middleton Junction
Iron Works Chadderton Oldham, in the County of Lancaster Engineers 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 consists in an improved construction of wrench intended for use
as a pipe wrench, but applicable also for similar purposes.
The nature of our said invention and the manner in which the same is to be
performed or carried into practical effect will be readily understood on reference to
the accompanying drawing and the following explanation thereof.
Our improved wrench is made as usual with two jaws for gripping the pipe.
One of the jaws a is made in one piece with the handle or lever a¹ which is
provided with a suitable lug or lugs 6 carrying a pivot e upon which the second
jaw d swings loosely.
The latter is by preference made like a straight lever serrated so as to firmly
grip the pipe when it comes between it and the fixed jaw, but it may be slightly
curved as shown. The other end d' of this loose jaw is prolonged slightly beyond
its pivot and inclined so that the jaws a and d can be opened very widely if required
and the prolongation of the loose jaw abuts against a suitable set screw e or
IDC

page_text: equivalent device, so that the opening of the jaws can be limited as required as
shown by the dotted lines:
It will be seen that the gripping of the pipe can take place at the extreme
ends of the jaws so that the wrench. can be readily, used in the most confined
situations.
Also since the jaws a and d'are straight or nearly, so (though serrated or notched
in such a way as to ensure a firm grip) they, form an angle more or less acute
according to the adjustment of the set screw e above named, and the pipe can. be
gripped at any point nearer to or further from the pivot c; various sizes of pipe
can therefore be operated upon without re-adjusting the jaws.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The improved construction of adjustable wrench substantially as hereinbefore
described and illustrated by the annexed drawing and more particularly we claim in
a wrench provided with a fixed and a movable jaw the combination with a pro-
longation of the latter beyond the pivot, of a set screw or other equivalent adjustable
abutment, whereby the opening of the jaws can be limited to suit the diameter of
the pipe or article to be operated upon.
Dated this 9th day of May 1891
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.