Moving Spanner to Work with Spring and Catch.
Year: 1890

page_text: Date of Application, 20th Mar., 1890
Complete Specification Left, 20th Dec., 1890-Accepted, 24th Jan., 1891
PROVISIONAL SPECIFICATION.
Moving Spanner to Work with Spring and Catch.
WILLIAM ASH, 30, Upper Hall Lane, Walsall, Staffordshire, Merchantile Clerk, do
hereby declare the nature of this invention to be as follows:-
The moving jaw of the spanner to have affixed to it a catch, held in position by a
spring, and the arm of the spanner to have in it notches for the catch to work in.
This enables the jaw of the spanner to be placed in position, much more quickly than
the ordinary methods with clet or screw.
Dated this 10th do..
''በሰ
WILLIAM ASH.
COMPLETE SPECIFICATION.
Moving Spanner to Work with Spring and Catch.
I WILLIAM ASH, of 30, Upper Hall Lane, Walsall, Staffordshire, 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 has reference to moving spanners of that class in which the moving
iwi furnished with a catch which engages with one or other of a series of notches
or teeth formed on the lever arm of the spanner and this invention consists in con-
structing and arranging the parts as herein described and illustrated by the
accompanying drawings thereby obtaining a very effective spanner which is cheap to
manufacture and not liable to derangement of the parts or undue wear.
I will describe my invention by referring to the accompanying drawings on which
Fig. 1 represents in part sectional side view and Fig. 2 in edge view a spanner
constructed according to this invention :
Fig. 3 shews part of a spanner and illustrates a modification of my invention;
Figs. and 5 each illustrate a further modification ;
Fig. 6 shews a modified form of the catch part of the same; and
Figs. 7 and 8 illustrate a further modification.
The same letters of reference indicate the same or corresponding parts in all the
figures of the drawings..
A is the lever arm of the spanner furnished with the fixed jaw B, and C is the
sliding jaw fitting loosely on the lever arm A which latter has a series of teeth or
notches d (as in other spanners of this class) for the catch E on the sliding jaw to
engage with and maintain the sliding jaw in any desired position.
According to this invention the catch E is arranged for its acting end e to project
at the back of the jaw C as shewn. The catch E fits in a slot in the moving jaw C
and is there secured by the fulcrum pin or rivet f. A spring G acts upon the catch E
and keeps it pressed against the teeth or notches d. This spring may be of any con-
venient kind such as a coiled wire spring (Figs. 1 and 2) acting upon the heel of the
catch, or it may be a flat spring acting upon the top of the catch (Fig. 3) or it
may be a flat spring acting underneath the catch (Figs. 4 and 5). The acting end of
the catch may either be arranged (as in Figs. 1, 2, 3, 4, 5, 7 and 8) to engage with
one notch or it may (as shewn in Fig. 6) be made to take in two or more notches at
once so as to afford a firmer hold. Formed with the catch is a knob or projection g
by which the catch can be lifted out of the teeth when it is required to adjust the
moving jaw farther from the fixed jaw. A projecting rivet h in the lever arm prevents
he sliding jaw being removed therefrom.
The catch E may be arranged at the side, or two of such catches may be arranged

page_text: at the sides of the sliding jaw and corresponding teeth or notches at the side or sides
of the lever arm A instead of at the back thereof. A spanner made in this way, its
sliding jaw having two of the catches E engaging in notches & sunk in both sides of
the lever arm A, is illustrated by Figs. 7 and 8.
In conclusion I wish it to be understood that I do not make any exclusive claim to
a spanner in which the moving jaw is held in place by a catch or catches engaging
with teeth or notches in the lever arm as I am aware that spanners of this class were
in common use prior to my invention.
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:-
The improved moving spanner hereinbefore described and illustrated by the accom
panying drawings, in which the moving jaw has one or more of the spring catches E
arranged for the purpose and substantially as herein before set forth.
Dated this 19th day of December 1890.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.