An Improved Spanner.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
An Improved Spanner.
We, WILLIAM JETHRO STURGESS, of 83, Digbeth, Birmingham, in the County
of Warwick, Engineer, WILLIAM ASHCROFT, of 13, Stratford Avenue, Highgate,
Birmingham, in the county aforesaid, Manufacturers' Agent, and MARY EMILY
BIRD (Mrs.), of Copeley Hill, Gravelly Hill, Birmingham, also in the county
aforesaid, do hereby declare the nature of this invention to be as follows:-
Our
This invention relates as hereinafter described to an improved spanner and has
for its object to provide an arrangement whereby a spanner may be rendered more
efficient in its action and capable of producing a firmer grip than heretofore.
invention consists essentially of a spanner having two movable jaws which may be
opened and closed by means of a quick threaded screw operated by a fly or other.
nut. In carrying our invention into practice we provide two flat side plates to
form the body of the spanner each fitting flat with the other. The end of each
side plate is shaped to form one half of the spanner jaw, to the opposite ends are
formed loops terminating in the other half of the spanner jaw. The function of the
said loops is to get the said side plate in juxta position with the other, the four half
jaws are arranged to be in the same direction with each other, the two at one end
being much less than those of the other. We cause the jaws to be opened and
closed in the following manner:-
-Above the edges of each side plate we form a
lock directly opposite each other having a space between them, each lock is drilled
and tapped one with a right hand and the other with a left hand screw.
furnish the said screw holes with a right or left hand screw in a manner that when
rotated in one direction will cause the jaws to open and when in the other to close.
We provide the said screw with a thumb or fly nut for the purpose of rotating it.
Dated this 31st day of July 1897.
We

page_text: Birmingham, in the county aforesaid, Manufacturer's Agent, and MARY EMILY
BIRD (Mrs.), of Copeley Hill, Gravelly Hill, Birmingham, also in the county
aforesaid, 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 relates as hereinafter described to an improved spanner and has
for its object to provide an arrangement whereby the spanner is rendered more
efficient in action and capable of producing a firmer grip than heretofore. Our
invention consists essentially of a spanner having two movable jaws which may be
opened and closed by means of a quick threaded screw operated by a fly or other
nut.
In carrying our invention into practice we provide two flat side plates to fit
flat with each other and form the body of the spanner. The end of each side plate
is shaped to form one half of the spanner jaw, to the opposite ends are formed loops
terminating in the other half of the spanner jaw. The function of the looops is to
get the side plate in juxta position with the other. The four half jaws are
arranged to be in the same direction with each other the two at one end being much
less than those of the other. The jaws are opened and closed in the following
manner: Above the edges of each side plate we form a lug directly opposite each
other having a space between them, each lug is drilled and tapped one with a
right hand the other with a left hand screw. We furnish the screwholes with a
right or left hand screw in a manner that when rotated in one direction will cause
the jaws to open and when in the other to close. We provide the said screw with
a thumb or fly nut for the purpose of rotation. In order that our invention may
be more clearly understood we will describe it by reference to the accompanying
drawings the same letters of reference indicating similar parts throughout:-
Figure 1 is a side elevation of the complete spanner and Fig. 2 a plan.
Figures 3, 4, 5, 6 & 7 are detail views.
Figures 9 & 10 show in elevation and plan a modification of our invention.
Figure 8 is a modification of the screw.
The part of the jaws A & B are connected by the side plate D and the other part
of the jaws C & E are connected by the side plate F the side plates D & F slide
together and constitute the movable jaws of the spanner. The side plate F slides
freely in the cavity G of the jaw A and the side plate D slides in the cavity of
the jaw E thus bringing the two plain surfaces together the side plates being held
in juxta position by means of two metal plates one attached to the part I by
rivetting and the other by like means to the part K. The double threaded screw
Figure 3 has a right hand thread a and a left hand thread which work in the
screwed lugs c, d, c forming part of the plate F and d part of the plate D and
are operated by the nut N by which the spanner is opened and closed. In the
i urrangement shown at Figures 9 and 10 we employ a right hand double thread
screw a connected to the lug M forming part of the side plate D. The fly or
thumb nut N is caused to rotate freely between the bifurcated lugs O thus causing
the opening and closing of the jaws. In the screw shown at Figure 8 the fly nut
is replaced by a milled head which is arranged to rotate in a single lug, similar
to that shown at c and d.
Having now particularly described & ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:
1. In a spanner the combination of the two side plates terminating at their
extremities in half jaws the sliding together of the side plates causing the jaws
to close or open simultaneously by means of a screw a & band the screwed
lugs & d and screw nut N substantially as described & illustrated.
2. The combination in a spanner of the parts A, C and B, E carried by the side

page_text: plates D & F held in juxtaposition by the plates attached to the parts K & I the
jaws being adapted to open & close by the screwing of the nut N substantially as
described & for the purpose set forth.
Dated this 30th day of April 1898.
WILLIAM HENRY BARACLOUGH,
36, Temple Street, Birmingham, Agent for the Applicants.