Improvements in Moveable Spanners.
Year: 1895

page_text: Date of Application, 22nd Mar., 1895
Complete Specification Left, 21st Dec., 1895-Accepted, 1st Feb., 1896
Improvements in Moveable Spanners.
I, WILLIAM BROOKES of Howard Works Woodbourne Road in the City of
Sheffield County of York, Engineers' Tool Manufacturer do hereby declare the
nature of this invention to be as follows:-
My present invention consists of the improvements hereinafter described in
spanners having a moveable jaw which slides on the upper portion of the handle or
shank, and worked by means of a screw roller attached to the aforesaid moveable
jaw, and a screw rack on the edge of the upper portion of the handle or shank, by
which improvements the spanners are so constructed that they can be made
stronger and more reliable than heretofore.
In spanners of this description the moveable jaw generally breaks across the eye
portion fitting over the handle or shank in consequence of it being the weakest
part and having to withstand the greatest stress when the spanner is being used for
the purpose of tightening screws or nuts, and it is more particularly to remedy
these defects, that I have invented these present improvements.
In constructing a spanner according to my present invention, I roll or otherwise
form on the upper portion of the handle or shank, one or more grooves on either
side, and in the moveable jaw I form in any suitable manner corresponding pro-
jections or lugs, to slide inside the. aforesaid groove or grooves, these projections
or lugs not only strengthening the eye of the moveable jaw, but reduce the strain
on the aforesaid screw roller and the screw rack when it is being used.
The aforesaid projections or lugs on the moveable jaw I may make of any
desired shape and the groove or grooves in the handle or shank to correspond
thereto.
Dated this 21st day of March 1895.
WILLIAM BROOKES.
Improvements in Moveable Spanners.
I, WILLIAM BROOKES of Howard Works, Woodbourne Road in the City of
Sheffield County of York Engineers' Tool 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 :-
My invention relates to the improvements hereinafter described in spanners
having a moveable jaw which slides on the upper portion of the handle or shank,
and is worked by means of a screw roller attached to this aforesaid moveable jaw,
and a screw rack on the edge of the upper portion of the handle or shank, by which
improvements the spanners are so constructed that they can be made stronger and
more reliable than heretofore.
In spanners of this description the moveable jaw generally breaks across the eye
portion fitting over the handle or shank in consequence of it being the weakest
part and having to withstand he greatest stress when the spanner is being used for
the purpose of tightening screws or nuts and it is more particularly to remedy
these defects that I have invented these present improvements.

page_text: eferring to the accompanying drawings.
Fig. 1 is an end elevation of the head of the spanner.
Fig. 2 is a side elevation.
Fig. 3 is an end elevation showing the grooves in the handle or shank.
Like letters of reference denote corresponding parts throughout the drawings.
In constructing a spanner according to my present invention I roll, cast or
otherwise form on the upper portion of the handle a. Figs. 1, 2 & 3, one or more
grooves b. on either side and in the moveable jaw c, I form in any suitable manner
projections or lugs d, to slide inside the aforesaid groove or grooves b, these
projections or lugs .d. not only strengthening the eye of the moveable jaw.c, but
reducing the strain on the aforesaid screw roller f and the screw rack g. when it is
being used.
The aforesaid projections or lugs d, on the moveable jaw I may make of any
desired shape and the groove or grooves b. in the handle a. to correspond thereto.
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:
A spanner having the handle and moveable jaw constructed as hereinbéfore
described and shewn in Figs. 1, 2, & 3. The moveable jaw 'being worked by
means of a screw roller, and a screw rack on the edge of the upper portion of the
handle for the purposes specified.
Dated this 20th day of December 1895.
WILLIAM BROOKES.