Improvements in and relating to Adjustable Spanners or Wrenches.
Year: 1890

page_text: Date of Application, 16th July, 1890
Complete Specification Left, 16th Apr., 1891-Accepted, 16th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in and relating to Adjustable Spanners or Wrenches.
We, JOSEPH LUCAS, and HARRY LUCAS, Manufacturers, and ALFRED HENRY
BISHOP, Mechanic, all of the Tom Bowling Lamp Works, Little King Street,
Birmingham, in the County of Warwickshire, do hereby declare the nature of this
invention to be as follows:-
Our improvement relates to that type of adjustable spanner or wrench having
the shank carrying the adjustable jaw adapted to slide in or on the shank carrying
the fixed jaw and forming the handle, and it has for its object increased rigidity
between the jaws.
We attain this end by constructing the spanner or wrench in the following
manner The shank carrying the fixed jaw is shaped to form a handle and in
its two flat or approximately flat sides are cut or formed two wide, but shallow,
slots running from the jaw end of the shank to within a short distance of the free
end thereof. For about half its length the shank is cut away between the two
slots, so that the free end of the shank is of skeleton form. The shank carrying
the adjustable jaw is slotted or divided to adapt it to fit over and slide within the
two slots in the shank carrying the fixed jaw. In the slot in the free end of the
shank of the adjustable jaw is formed, or fixed by rivetting or otherwise after
the shank is in position on the shank carrying the fixed jaw, a solid piece through
which a longitudinal hole is formed and threaded to receive the screw by which
the jaws of the spanner are adjusted. This adjusting screw passes through a hole
in the free end of the shank of the fixed jaw and is supported at its other end by
means of a suitable bearing which may also be adapted to prevent its longitudinal
movement, but this may if desired be accomplished at the free end of the shank by
means of a dowel pin engaging with a slot in the shank of the screw. A suitable
milled head is formed or fixed on the shank of the screw whereby it can be rotated
for the purpose of adjusting the jaws of the spanner or wrench. Slots may be cut
or formed in the divided sides of the shank carrying the adjustable jaw if necessary
to provide for the clearance of the adjusting screw.
11
1000
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
Royal Courts Chambers, 70-72, Chancery Lane, London, W.C.,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in and relating to Adjustable Spanners or Wrenches.
We JOSEPH LUCAS and HARRY LUCAS, Manufacturers, and ALFRED HENRY
BISHOP, Mechanic, all of the Tom Bowling Lamp Works, Little King Street,
Birmingham, in the County of Warwickshire, 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:-
Our improvement relates to that type of adjustable spanner or wrench having
the shank carrying the adjustable jaw adapted to slide in, or on, the shank carrying
the fixed jaw and forming the handle, and it has for its object increased rigidity
between the jaws.
We attain this end by constructing the spanner or wrench in the manner
illustrated by the accompanying drawing, in which

page_text: Figure 1 is a view in side elevation of an adjustable spanner or wrench embodying
our invention.
Figure 2 is a view in side elevation with one half of the shank of the sliding jaw
removed.
Figure 3 is a view in transverse sectional elevation on line y. y. Figure 2.
Figure 3 is a view in side elevation of the shank carrying the fixed jaw.
Figure 4 is a view in front elevation of the shank carrying the adjustable jaw,
.and
Figures 6, 7, and 8 are views in sectional plan on the lines v. v., w. w. and .c. x.
Figure 2 respectively.
The
Throughout these views similar parts are marked with like letters of reference.
The shank A carrying the fixed jaw A¹ is shaped to form a handle, and in its
two flat, or approximately flat, sides are cut or formed two wide, but shallow,
slots a. a. running from the jaw end of the shank to within a short distance of the
free end thereof. For about half its length the shank is cut away between the
two slots, so that the free end of the shank is of skeleton form. The shank B
carrying the adjustable jaw B1 is slotted or divided to adapt it to fit over the
slide within the two slots a. a. in the shank A carrying the fixed jaw A¹.
free end of the slot in the shank B carrying the adjustable jaw B₁ is closed after
the said shank is in position on the shank A carrying the fixed jaw A¹ by means
of pieces b. bformed on, or fixed to, the ends of the shank B and through which
a longitudinal hole is formed and threaded to receive the screw C by which the
jaws of the spanner are adjusted. This adjusting screw C passes freely through a
hole a in the end of the shank A. carrying the fixed jaw A', and its end is
recessed to adapt it to engage with a T-shaped slot in the wall between the two
slots a.
a. and thus prevent its longitudinal movement, as illustrated by the
accompanying drawing, so that the rotation of the screw by its milled head C
causes the shank B carrying the adjustable jaw B' to move with respect to the
other jaw A. The longitudinal movement of the screw C may be prevented by
any other suitable means if desired, for instance by means of a dowel pin screwed
into the shank A and engaging with a slot in the screw C. Slots may be cut
or formed in the divided sides of the shank B carrying the adjustable jaw B¹, if
necessary, to provide for the clearance of the adjustable screw C.
We wish it to be particularly understood that we do not limit ourselves to the
exact details of construction hereinbefore set forth and illustrated by the accom-
panying drawing, but hold ourselves at liberty to make such changes and
alterations as fairly fall within the spirit and scope of our invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1st. The improved adjustable spanner or wrench, constructed, arranged, and
operating, substantially as set forth.
2nd. In an adjustable spanner or wrench, the combination of a shank-shaped
to form a handle-carrying the fixed jaw and having longitudinal grooves on each
side thereof; of a shank carrying the adjustable jaw and having a central longi-
tudinal slot adapting it to engage with the shank carrying the fixed jaw; and of
an operating screw adapted to rotate in the shank of the fixed jaw and to be
threaded into a solid piece in the end of the shank carrying the adjustable jaw,
all combined, arranged, and operating, as and for the purpose set forth.
Dated this 16th day of April 1891
ROBT. ED. PHILLIPS, M.I.M.E., ETC.,
Consulting Engineer & Patent Agent,
70-72, Chancery Lane, London, W.C.,
Agent for Applicants.
ROBT. ED. PHILLIPS, M.I.M.E., ETC.,
Consulting Engineer & Patent Agent,
70-72, Chancery Lane, London, W.C.,
Agent for Applicants.