Year: 1886

page_text: Date of Application, 31st July, 1886.
Complete Left, 1st Mar., 1887.
Complete Accepted, 22nd Apr., 1887.
I, JAMES BRAWN of Shenstone near Lichfield in the County of Stafford Farmer
do hereby declare the nature of my said invention to be as follows:-
This invention has for its object an improved moving spanner which is much more
convenient and certain in its action than those now in use besides being very easy in
adjustment. The present screw spanners give way under heavy strains.
I make one end or jaw of the spanner and the handle of one piece of steel or other
suitable metal and the back is continued square or oblong a little distance from the
solid jaw and then enters into an oval or oblong figure with rounded edges upon which
the back jaw slides very easily but it cannot turn round. The adjustment is accom-
plished by means of a wedge which slides with the jaw and is hollowed to fit the
round bar or handle and is easily operated by an enlargement at the end. The handle
is cranked downwards and reduced towards its extremity so as to give leverage and
to throw the strain when in use upon the solid point of the jaw. The jaws are
bevelled from the back in a forward direction which greatly facilitates its use in
entering into difficult positions. Instead of the wedge I may form the moving jaw
with the front top of its socket protruding forwards and projecting backwards at the
top either bodily or by a finger or ear in which I place a set screw or little spring
wedge or spring each of which has the effect of bringing the back lower edge of the
sliding jaw socket against the under side of the handle in such a manner that operating
the spanner has the effect of tightening the jaw in any desired position. The effect
is that the jaw requires only very lightly setting to any gauge to withstand almost any
strain and thus readjustment to another size is most rapidly accomplished with great
accuracy and ease which is done by slacking the screw and depressing the spring or
wedge liberty for which is allowed in the hole of the sliding jaw at the top back and
front bottom of the hole.
Dated this 30th day of Inly 1886
GEORGE BARKER,
77, Colmore. Row, Birmingham,
Agent for Applicant.

page_text: I, JAMES BRAWN of The Bosses, Shenstone Lichfield Farmer 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 for its object an improved moving spanner which is much more
convenient and certain in its action than those now in use, besides being very easy in
adjustment. The present screw spanners give way under heavy strains. I make one
end or jaw of the spanner and the handle of one piece of steel or other suitable metal
and the back is continued square or oblong a little distance from the solid jaw and
then enters into an oval or oblong figure with rounded edges upon which the back jaw
slides very easily but it cannot turn round. The adjustment is accomplished by means
of a wedge which slides with the jaw and is hollowed to fit the round bar or handle
and is easily operated by an enlargement at the end. The handle is cranked down-
wards and reduced towards its oxtremity so as to give leverage and to throw the strain
when in use upon the solid point of the jaw. The jaws are bevelled from the back in
a forward direction, which greatly facilitates its use in entering into difficult positions.
Instead of the welge I may form the moving jaw with the front top of its socket
protruding forwards and projecting backwards at the top either bodily or by a finger
or ear in which I place a set screw or little spring wedge or spring each of which has
the effect of bringing the lower edge of the sliding jaw socket against the under side
of the handle in such a manner that operating the spanner has the effect of tightening
the jaw in any desired position. The effect is that tho jaw requires only very lightly
setting to any gauge to withstand almost any strain and thus readjustment to another
size is most rapidly accomplished with great accuracy and ease which is done by
slacking the screw and depressing the spring or welge, liberty for which is allowed
in the hole of the sliding jaw at the top back and front bottom of the hole.
I will now proceed to describe with reference to the accompanying drawings the
manner in which my invention is carried out.
Figuro 1 represents my improved spanner with the moving jaw adjusted by means
of a wedge.
Figure 2 is an end view of figure 1.
Figure 3 represents my improved spanner with the jaw adjusted by means of a
screw.
Figure 4 is an end view of figure 3.
Figure 6 represents my improved spanner with a spring adjustment.
Figure 7 is an end view of figure 6.
Figure 8 represents my improved spanner provided with a spiral spring adjustment.
Figure 9 represents my improved spanner similar to figure 8 formed into a screw
driver end.
Figure 10 is an end view of figure 9.
In carrying out my invention I in some cases make the moving jaw adjustable in
the manner represented at figures 1 and 2. The moving jaw A is pierced with an
oval slot, corresponding with the configuration of handle part B shewn in section
at B¹ figure 2.
It will be observed that the wedge C is tapered. In using the spanner formed in

page_text: the manner represented at figures 1 and 2 I should adjust it to suit any sized nut by
moving the jaw A and the wedge C towards the nut and when the jaw A approached
very near the nut I should slide it on the wedge C and thus bring the bearing part D
against the side of the nut. This method is practical when used for tightening large
nuts and is intended to be used more especially by farmer's men for rough purposes.
To these men a few seconds of time is not of vital importance, the great importance
to them is to have a spanner that will fit any nut on the agricultural implement they
may be using, therefore I repeat that the adjustment on the wedge Cis practical when
applied in the manner described for the purpose described.
Figures 3 and 4 represent the moving jaw adjusted by means of a set pin E. The
moving jaw A would be moved close against the nut and secured in position by
tightening the sot pin E.
Figures 6 and 7 represent the moving jaw A³ adjusted in position by means of the
spring F. In this case the locking of the jaw A depends upon the mechanical action
of the bearing points G H on the bar B, or the edge Q on the har 33³.
Figures 3, 9 and 10 represent my improved spanner in a form suitable for use on
small nuts, the locking of the moving jaw A³ or A is accomplished by the mechanical
action of the bearing points GH figure 8 G H figure 9. The spiral spring J
prevents the moving jaw from shifting about on the handle.
In tightening a nut by use of the spanner as represented at figures 8 or 9, the
moving jaw A or A would be slidden or moved into close contact with the nut.
Immediately on forcing down the handle part the points G¹ H¹, G³ H' would lock
themselves on the handle or bar.
I provide an opening as represented at K. This opening would by preference be
formed to fit a small hexagon nut; one side would be formed circular instead of flat;
this circular part is provided for the purpose of hanging the spanner up by means of
a cord or lace and would prevent fraying of the material.
The point M is formed into a screw driver point.
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
1st. The invention as illustrated and described.
2nd. In a moving spanner the sliding jaw A in conjunction with the wedge Cas
described in reference to figures 1 and 2.
3rd. The moving jaw A¹ in conjunction with the set pin E as described in
reference to figures 3 and 4.
4th. In a moving spanner the sliding jaw A³ in conjunction with the spring F; the
serrated edge P, and the bearing points G and H as illustrated and described in
reference to figures 6 and 7.
5th. In a moving spanner the moving jaw A³ or A* in conjunction with the bearing
points G¹ H¹, G H combined with the spring J J' as illustrated and described in
reference to figures 8 and 9.
6th. In a moving spanner the rounded end L of the opening K in conjunction with
the handle of a moving spanner for the purpose of hanging the moving spanner to
any convenient projection by means of a cord resting in the hollow part L.
7th. In a moving spanner of the character described in reference to figures 1, 2, 3,
4, 6, 7, 8 and 9 a screw driver point as represented at M for the purpose of using
to tighten screws.