Adjustable Moving Spanner and Screw Wrench.
Year: 1892

page_text: Date of Application, 17th Sept., 1892
Complete Specification Left, 16th June, 1893-Accepted, 5th Aug., 1893
PROVISIONAL SPECIFICATION.
Adjustable Moving Spanner and Screw Wrench.
EDWARD THOMAS CLEATHERO 16 Tollington Place London N. Engineer do
hereby declare the nature of this invention to be as follows:-
My invention relates to an improved construction of a quick motion adjustable
moving spanner and in what manner the same is performed as described by the
following statement.
The handle is formed with a long parallel slot (or fork) at one end to receive the
jaws, the jaws are recessed on both sides to fit in the parallel slot in the handle.
The outer jaw is made fast to the handle or may be a solid part of the handle.
The inner jaw is made to slide in the parallel slot by means of rod or shaft con-
nected to the inner jaw by socket or swivel joint or any other suitable means to allow
the rod to be turned round or oscilate and passed through the centre of the handle
and out at the opposite end to the jaws, a screw thread is formed on the rod
or shaft with a nob or other attachment at the end of the rod or shaft to move the
inner jaw either inward or outward as required. The inside of the handle having a
screw thread formed on one side and a spring on the other side to hold the screwed
part of the rod or shaft into the threads in the handle, the hole in the handle is
made oblong and allows the rod or shaft when pressed against the spring to be
lifted out of the threads and move the inner jaw quickly in either direction as
required. On releasing the pressure against the spring the screw part of the rod
falls into the screwed threads of the handle thus holding the inner perfectly firm
and can only be moved by turning the screwed rod.
I may use rack teeth on the rod or in the handle and make a slot through one
side of the handle with a projecting knob or catch attached to the rod or shaft
passing through the slot in the handle to lift the rod out of the teeth and move the
inner jaw as required, instead of passing the rod through the end of the handle as
described above.
I may make the handle in one or two parts.
I prefer to make handle in two parts and connect the two parts together, so that
I can stamp or forge the handles in shape. Also the jaws being made separate
parts from the handle I may stamp or forge or cast them of suitable material to
stand the wear.
17th Santamber 1802
E. T. CLEATHERO.
COMPLETE SPECIFICATION.
Adjustable Moving Spanner and Screw Wrench.
I EDWARD THOMAS CLEATHERO of 16 Tollington Place, N. in the County of
London, Engineer 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:―
My invention relates to improvements in screw wrenches and spanners and has
for its object to provide a handy tool which can be quickly adjusted to the size of
the nut or bolt head required to be fastened or unfastened.
In carrying my invention into practice I provide a handle preferably of steel, to
the outer end of which is tightly fixed one of the jaws of the tool. The other jaw is
arranged to be moved freely to & fro along the handle and is notched at its lower
part to receive the stud shaped end of the operating screw rod. The latter is screw

page_text: threaded over only about half its length: the upper end thereof which is
connected to the central part of the moveable jaw being smooth. This screw rod
is moreover furnished beyond the inner end of the handle with a milled head or
knob for convenience of manipulation. Within the handle is formed a longitudinal
recess which is narrower at its inner or straight end, the edge of the metal on one
side of this recess being tapped or provided with teeth so as to form a rack wherein
gears the screw threaded end of the operating rod against the smooth end of which
bears on the other side of the enlarged part of the said recess, a curved spring the
ends of which rest against projecting edges of such recess. The lower or moveable
jaw is guided by its reduced central part in a slot formed in the handle.
In the accompanying drawings in which like letters of reference indicate corre-
sponding parts,
Fig. I is an outside view, Fig. 2 a central longitudinal section and Fig. 3 a back
or edge view of my improved spanner or screw wrench.
This spanner comprises a handle h to the top end of which is securely fixed the
jaw a. The moveable jaw b can slide by means of its reduced part shewn in dotted
lines in Fig. 3 within the slot g being provided on one side with a notch of a shape
corresponding with that of one end of the operating screw.rod c which is located
therein, and the other end whereof is provided with a milled edge screw knob f.
This rode is screw threaded over a portion of its length while the other part
is smooth as clearly shewn in Fig. 2. The handle h has a recess r through which
the screw rod c passes the lower edge o of the inner end of this recess being tapped
or provided with teeth with which the screw threaded part of the rod c engages
under the action of the spring d bearing against its smooth part and the ends of
which rest against projecting parts or rims of the recess r.
When the spanner is to
be adjusted to the size of a nut for instance the knob f is taken in the hand and
the spring d is depressed by pushing the rod c against the same when the lower jaw
can be rapidly moved to and fro untill the opening between the jaws a and b
correspond with the diameter of the nut or thereabouts the accurate adjustment
further insured if necessary by allowing the screw rod c to engage with the edge o
of the recess and then screwing the former to or fro untill the nut is accurately
fitted when the latter can be tightened or loosened accordingly as required whilst
the rod c remains engaged with the edge o of the recess r. It is obvious that iny
improved spanner is much quicker in action than the spanners hitherto constructed
as the moveable jaw need not be slowly screwed in and off a long distance when it
is required to operate on a large nut after the tool has been previously set for a
small nut.
Having now particularly described and
tion and in what manner the same is to
claim is:
ascertained the nature of this inven-
be performed, I declare that what I
1. The improved spanner or screw wrench constructed and operating substantially
as herein described & shewn.
2. In spanners or screw wrenches, the use of an internal spring by depressing
which the moveable jaw can be moved rapidly to and fro for the purpose of
adjustment substantially as herein described and shewn.
Dated this 16th day of June 1893.
E. T. CLEATHERO.