IMPROVE- MENT IN THE CONSTRUCTION OF SPANNERS
Year: 1886

page_text: I, JOHN BROWN of 634 King's Road, Fulham, in the County of Middlesex,
boiler maker, do hereby declare the nature of the said invention for AN IMPROVE-
MENT IN THE CONSTRUCTION OF SPANNERS:―
The invention consists of coupling spanners formed in two parts.
Each part consists of a jaw, and a lever. One lever has a stud in it, the other
lever has regulating holes in it for various sizes.
The two levers are clasped by jaws formed on one or both of them, or by a loose
collar, coupling the two levers together, which forms the spanner.

page_text: I JOHN BROWN of 634 Kings Road Fulham in the County of Middlesex, Boiler
Maker, do hereby declare the nature of the said invention for IMPROVEMENTS IN
THE CONSTRUCTION OF SPANNERS, to be particularly described and ascertained in
and by the following statement:-
In constructing a spanner or wrench according to my invention I form the
spanner in two parts, one part carrying the upper jaw, and the other part
the lower jaw, and I connect the two parts together, by means of a stud formed
upon one lever, which enters a hole or recess, upon the other lever, and I also
further connect the two parts together, and prevent them springing apart laterally,
or otherwise, when in use, by a loose collar, or ring, surrounding both levers; by
a loop formed on one and embracing the other, or by forming the levers in such a
manner that when coupled for use, one lever falls into a jaw formed upon the
other lever, and prevents them from springing apart when being used.
In order to enable my invention to be fully understood, I will proceed to
describe the same by reference to the accompanying drawings, which represent
views of spanners constructed according to several modifications of my invention;
similar letters in all the figures representing similar parts.
In Figures and 2, a and b are the two parts of the spanner, the part;
a carrying the upper jaw c, and the part 6 carrying the lower jaw d. The two
parts a, and b, are connected, or linked together at the lower end by a stud at e, so
that the two parts of the spanner can move on the said stud, or pivot, which can
be removed, and inserted in any of the holes so as to open or close the jaws c
and d from or towards each other. The jaws c and d are secured from springing
apart, while in use by the collarf which encircles the two parts a and b. The
collar fis free to move along the two parts a and b from the stud e to the jaw d.
From this construction it will be obvious that the improved spanner may be
adjusted to grip various sized nuts or other articles, and at the same time when
the strain occasioned by turning the said nuts, or other articles is brought upon
the jaws c and d, that the two parts a and b cannot spring apart from each other,
but are restrained therefrom by the collar f, thereby maintaining a firm and secure
grip of the nut or other article the spanner is operating upon.
In the arrangement shewn in Figures 3 and 4 the two parts a and b of the
spanner are connected together at e as hereinbefore described; but are provided
with a pair of jaws g formed solid on the part a, into which the part 6 enters when
the spanner is in the position for use, or the pair of jaws g may be formed on the
part b, and the part a enter it when the spanner is in the position for use, or
the part a or b, may have a collar or clasp f formed solid upon it, in which the
opposite part a or b moves in the segment of a circle, allowing the adjustment of
the jaws c and d from or towards each other, to be made, and at the same time
retain the parts a and b from springing apart when in use.
In these arrangements the operation is substantially the same as that of the
spanner shewn in Figures 1 and 2

page_text: In Figures and 6 the two parts a and b are placed, the part a under the
part b, and the adjustment of the jaws c, and d, from or towards each other is
accomplished by the formation on the part a of a stud or projection e which enters
the holes or recesses h, h, h, h, formed in the edge of the part b, the collar f
encircling the two parts a and b retains them from springing apart when the strain
upon the jaws c and d takes place while the spanner is in use. The parts a and b are
formed taper at their lower ends, and the part a has a loop formed on it, which
encircles the part b, so that when the collar fis brought down to the taper portions
of a and b, the stud e will leave the recesses hhhh and may be inserted into any
one required to give the proper adjustment to the jaws c and d, when by raising
the collar f the jaws c and d are firmly held in the requisite position for use.
In Figures 7 and 8, the two parts a and b are provided along their inner edges,
the one with a series of recesses, and the other with projections fitting into them,
Bo as to permit a more gradual adjustment of the jaws c and d from or towards
each other, the two parts a and b being encircled by a loose collar f to prevent
them springing apart during work the two parts a and b being made taper and
with a loop as in the spanner shewn in figures 5 and 6 to permit of any desired
adjustment of the jaws c and d.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
Firstly. A spanner formed in two parts, one part being made with projections,
or teeth, to enter into recesses in the other part, whereby the jaws may be adjusted
to different distances apart, the two parts being taper to allow a loose collar to
move along them, and one having a loop solid with itself which encircles the other,
and thereby permits the said projectious or teeth to be removed from, or inserted
into, such of the recesses as is desired, the loose collar and loop, holding the two
parts firmly together, and enabling the jaws to gripe the screw nut or other
article, to be turned, substantially as, and for the purposes herein before described.
Secondly. A moveable collar to be applied to spanners formed in two parts, to
prevent the two parts seperating, laterally or otherwise, when in use.
Thirdly. A spanner formed in two parts having a pair of jaws made solid on one
part into which the other part is entered when the spanner is adjusted for use,
substantially as, and for the purpose hereinbefore described.
Fourthly. The manufacture and use of improved spanners herein before described
and represented in the several figures of the accompanying drawing.