Year: 1886

page_text: Date of Application, 9th Nov., 1886.
Complete Left, 9th Aug., 1887.
Complete Accepted, 20th Sept., 1887.
JOSEPH MOORE Engineer 46 Morley Street Byker Newcastle upon Tyne CHARLES
DAVIDSON MARTIN Engineer 106 Addison Road Heaton Newcastle upon Tyne we
do hereby declare the nature of this invention to be as follows :-
Our improvements consist in adjusting the jaws of the spanner by working the
handle, and in adjusting the handle to different angles with the jaws when they are
placed at any size. We carry out the above by the following arrangements. Fig. I
is a side view of spanner. Fig. II a section with one check F removed. Fig. III a
plan. The jaw A and cheeks F F form the head of the spanner inside of which are
placed the toothed head G, the jaw B the eccentric D and the pin E. H is a spring
used for turning the eccentric which puts the toothed head G of the handle C in and
out of gear. The spring H has a small pin fastened to it I which fits into one of the
cheeks F and prevents the eccentric D from turning round. The eccentric D) and
spring H are fastened or keyed upon the pin E. The toothed head G of the handle C
gears into the rack J of the jaw B, which is opened or closed by moving the handle C.
In placing the handle at different angles with the jaws they are first set to the size of
nut operated upon, then the toothed head G is turned out of gear with the jaw J and
the handle placed at the required angle, and the head G turned into gear again with
the jaw B. We do not bind ourselves to the above particular arrangement. A screw
may be placed through F F and the handle C with a plain round part upon it to
allow the handle to work freely. By this arrangement the screw can be taken out,
and put in again after the handle is placed in the position required. Or the movable
jaw J can be made to take out by cutting the teeth away from the head G near to the
end of the handle, and then turning it parallel with the sliding part of B so as to
allow B to come out freely. The handle can then be placed at the angle required and
the jaw put in gear again.

page_text: We, JOSEPH MOORE of 46 Morley Street Byker Engineer and CHARLES DAVIDSON
MARTIN of 106 Addison Road Heaton, Engineer both in the County of Northumber-
land do hereby declare the nature of said invention and in what manner the same
is to be performed to be particularly described and ascertained in and by the
following statement :-
Our invention consists of an improved adjustable spanner the moveable sliding jaw
of which is adjusted to the size of the nut by working the handle which can also be set
to work at any angle when necessary in confined places.
On the drawings filed with our provisional Specification we illustrated our invention
carried out in the form described in the first part of such Specification namely with an
Eccentric movement by which the handle is thrown out of gear with the moveable jaw
to change the angle and we wish this drawing and description to be read in connection
with and taken as forming part of our present Complete Specification.
On the drawings accompanying this Specification we illustrate our invention in
another form, as described in the latter part of Provisional Specification, being that
which we prefer and in which we propose to make it, as being simple in construction
and not liable to be damaged by rough handling.
Fig. 1 shews an external side view of our improved spanner, the jaws of which are
open to fit the nut of largest intended size.
:
Fig. 2 a sectional side view with the handle turned into its extreme position in
which the sliding jaw being clear of the radial teeth can be adjusted and the handle
set to the required angle as shown by Figs. 3 and 4 in which the handle is set
respectively at angles of about 90° and 45° to work in confined spaces.
Fig. 5 is an end view of the spanner.
On all the Figs. the same letters indicate corresponding parts.
B is the sliding jaw having formed on it the toothed rack J, and sliding in a groove
formed between the cheeks FF which, with the fixed jaw A, form the head of the
spanner. C is the handle working upon the fulcrum pin E and having a radial
toothed head G the teeth of which gear into those of the rack J when in working
position, but when it is desired to place the handle C to any angle it is first moved
into the position shewn on Fig. 2 when, as will be seen, the teeth in the rack J are
clear of those in the radial head and the jaw B can be moved, so that the teeth in
radial head G will engage with different teeth in the rack when, the handle being
turned into the position shewn on Fig. 3, the jaws are in full lines in position for an
intermediate size of nut and in dotted lines for the largest size of nut for which the
spanner is intended to be used. The moveable jaw B is prevented from coming
entirely out of the groove in cheeks by a stud-S shewn-on-Fig. 1.

page_text: Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed we declare that what we claim is :-
First. Adjustable spanners so constructed that the teeth in a radial head, formed
upon the end of the handle, engaging with the teeth in a rack, formed upon the
moveable jaw will, by operating the handle, adjust the width between the jaws to the
size of nut; and that by turning the handle parallel, or nearly so, with the rack on
moveable jaw the latter may be adjusted so that on setting the handle to an angle the
teeth will again engage thus enabling the handle to he worked in a confined space
substantially as described and shewn.
Second. Adjustable spanners constructed as above described with the addition of an
eccentric fulcrum pin upon which the handle works and by altering the position of
which the teeth in the radial head of the handle can be put into or out of gear with
those in the rack to enable the angle of the handle to be changed to work in a confined
space substantially as described and shewn on drawing accompanying the provisional
Specification.
Third. The adjustable spanner comprising the head, carrying the fixed jaw, with
groove formed therein to receive the toothed rack on noveable jaw, the handle with
radial toothed head so proportioned that on the bandle, being turned upon the fulcrum
pin parallel, or nearly so, with the rack on the moveable jaw, the latter can be adjusted
so that the handle will work at an angle in a confined space, or the alternative
arrangement in which the handle works upon an eccentric fulcrum by turning which
the teeth in the radial head are put into or out of gear with those in the rack on
moveable jaw to enable the handle to be set at an angle and work in a confined space
substantially as described and shewn on the accompanying drawings.
Total the 8th day of Au must 1887
must
T. J. DANSON, F. Inst. P.A.,
2, St. Nicholas' Buildings, Newcastle upon Tyne,
Agent for Applicants.