Improvements in Adjustable Wrenches or Spanners.
Year: 1896

page_text: Date of Application, 30th June, 1896
Complete Specification Left, 8th Mar., 1897-Accepted, 10th Apr., 1897
I, FREDERICK THEODORE WOODSON of 31 High Street, Sheffield, in the
County of York, trading as Barratt Woodson and Company, Merchant, do hereby
declare the nature of this invention to be as follows:-
The object of this invention is an improved wrench or spanner, the parts of
which are strong and simple, while allowing the opening of the jaws to be readily
altered.
The jaws of the wrench are provided with extensions, toothed so as to engage
with each other. A collar of suitable section encircles the two extensious, so as to
hold the teeth firmly in engagement, a recess being provided in one or both of the
extensions into which this collar may pass, in order to allow of the disengagement
of the teeth. Stops are provided to prevent the collar sliding right off. The outer
edge of one or both the extensions may, if desired, be tapered, as also the inside of
the collar, though the outer edges of the extensions may equally well be made
parallel to each other, the collar being made a sufficiently close fit to hold the teeth
firmly in engagement.
Dated this 30th day of June 1896.
BOULT & WADE,
Agents for the Applicant.
Improvements in Adjustable Wrenches or Spanners.
1, FREDERICK THEODORE WOODSON, of 31 High Street, Sheffield, in the
County of York, trading as Barratt Woodson & Co., Merchants, 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:-
The object of this invention is an improved wrench or spanner the parts of
which are strong and simple and adapted to allow the opening of the jaws to be
readily altered.
In the accompanying drawings
Fig. 1 is a side elevation of the complete spanner.
Fig. 2 is an end elevation of a collar hereinafter described, and,
Fig. 3 is an end elevation of the spanner complete.
Like letters indicate like parts throughout the drawings.
In constructing the spanner I form the bottom part A, with teeth B, and a
jaw C of any suitable metal or material the teeth being cast in, or formed thereon
in any suitable manner. On the top of the same I provide the part D, with a
movable jaw E, and teeth F to correspond with teeth on the lower part A of the

page_text: spanner, and on the upper part of the portion D, I form a slot or groove G of any
suitable size to receive a collar H; the collar is made to slide either on the wider
part of D or to enter the groove G thereof, so that when the spanner is required
to be tightened up against the face of any suitable sized nut or the like the collar H
is disengaged, and placed in the groove or slot G which allows the piece D to be
adjusted either backwards or forward to suit requirements. After this adjustment
the collar H is then placed over the wider portion of the piece D which is made a
suitable fit or slightly tapered to receive it, and thus tightens the piece D in any
suitable position as may be required: The teeth F in the piece D and the teeth B
in the bottom part A fit into one another and prevent slipping. Through the
piece DI préferably pass a pin Kand through the piece A, I preferably pass a
più L so as to prevent the collar from coming off the spanner.
Having now particularly described and ascertained the nature of the said inven-
tion and in 'what manner the same is to be 'performed, I declare that what I
claim is :-
1. In spanner or wrench the combination of the part A toothed and carrying
the jaw C, the jaw E with toothed and slotted extension D, and collar such
as H with or without stops such as K L substantially as and for the purpose
.described.
2. The combination and arrangement of parts constituting the complete
adjustable spanner or wrench substantially as described and illustrated in the
accompanying drawing.
Dated this 6th day of March 1897