IMPROVEMENTS IN WRENCHES AND ADJUSTABLE SPANNERS
Year: 1884

page_text: We FREDERICK BRINDLE and JOSEPH BRINDLE, Mechanics, both of Stanley
Street, Accrington, in the County of Lancaster do hereby declare the nature of the
said invention for IMPROVEMENTS IN WRENCHES AND ADJUSTABLE SPANNERS, to be
as follows:
•
The object of the said invention is to provide perfectly free adjustment, and
also to firmly secure and fasten the adjustable jaw, without the use of milled
adjusting screw, locking screw, or other similar appliances common to all other
adjustable spanners, and is as follows. The handle and one of the jaws is forged
or cast in one solid piece with a grove on each side of the head of the spanner.
The adjustable jaw being made with two projecting slides, which fit into the
groves. The head of the spanner and the adjustable jaw are made with a serrated
or toothed face which fit one another in such a manner that when the spanner is
being used the greater the force exerted on the handle of the wrench or spanner in
either direction and moro securely interlocked the serrated or toothed faces become,
thereby firmly locking the jaw and giving perfect rigidity.
To adjust the spanner it is simply necessary to raise the loose jaw untill the
serrated or toothed faces are disengaged the groves being slightly curved to allow
of this vertical motion. The loose jaw can then be moved in the required direction,
and is again secured by pushing down the loose jaw when the serrated or toothed
faces become again interlocked.
The face of the spanner is provided with an index or scale of sizes so that the
jaw can be set to any required distance at once.

page_text: Improvements in wrтепслев апа дајивного оранного.
We FREDERICK and JOSEPH BRINDLE, Mechanics, Stanley Street Accrington in
the county of Lancaster, do hereby declare the nature of our invention for
IMPROVEMENTS IN WRENCHES AND ADJUSTABLE SPANNERS, and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
The object of the said invention is to provide perfectly free adjustment and also
to firmly secure and fasten the adjustable jaw, without the use of adjusting screws,
locking screws or other similar appliances common to all adjustable spanners.
"Description of drawings," Fig. 1. is the side view of the spanner. complete,
shewing the loose jaw at its extreme position, being prevented from falling out
by the spring (a) having fallen into the small grove (g), the index is also shewn by
which the loose jaw can be set to any required size at once, Fig. 2 and 3, shew
the two edges of the spanner, Fig. 2, shewing the two ends of the sliding pieces 8, 8,
on the loose jaw.
The spring (a) not only prevents the loose jaw from falling out, but also keeps
the slides tight so as to enable the jaw to remain in any required position
when set.
Fig. 4 & 5 shew the body of the spanner without the loose jaw and which may
be forged or cast in one piece, b is the serrated or toothed face, the teeth
longitudinally may be straight, angular, or curved, they are shewn at (61) curved
by preference. (c) are the grooves for the loose jaw to slide in, of any convenient
form, A is the top view of the body of the spanner shewing the serrated or
toothed face.
B, C, D, E, are four views of the adjustable jaw, s. are the projecting slides
which fit the grooves c, e shews the serrations which fit those on the body of the
spanner.
Fig. 6 & 7, shews the spanner with the prongs inclined to the direction of
sliding, so that the adjustable jaw becomes thereby more firmly interlocked when
the spanner is in use. To operate the spanner the adjustable jaw is lifted in a
direction at right angles to the slides the grooves being curved at f to allow of this
motion, the serrated faces are then dissengaged and the adjustable jaw can be
moved in the required direction and set to any size at once by means of the index,
the jaw is then pushed down and the serrations are at once engaged.
When the spanner is being used the loose jaw becomes firmly locked as the
serrated faces are pressed together, the greater the pressure on the handle of the
spanner and the more firmly the adjustable jaw becomes interlocked.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed we declare that what
we claim is
(1.) The fixed serrated or tooth face in combination with the grooves on the
body of the spanner, substantially as set forth and described.

page_text: (2.) The projecting slides in combination with the serrated or toothed face on
the loose jaw as set forth.
(3.) The general arrangement of the loose jaw, slides, grooves and index so as to
give the free adjustment and secure locking of the adjustable jaw, substantially as
set forth and described..