Improvements in Wrenches or Keys.
Year: 1895

page_text: Date of Application, 18th Nov., 1895
Complete Specification Left, 21st Feb., 1896-Accepted, 21st Mar., 1896
PROVISIONAL SPECIFICATION.
Improvements in Wrenches or Keys.
JOHN TOWNSEND TRENCH Land Agent Kenmare County Kerry Ireland do
hereby declare the nature of this invention to be as follows:--
This invention relates to wrenches or keys for securing or unfastening nuts, bolts
or screws-used in the mechanical arts-more particularly in connection with
bicycles tricycles or other light running or domestic machinery in which only a few
sizes of nuts bolts or screws are used-whereby in one wrench four or more
hexagonal or other shaped openings surrounded by a ring of metal made and joined
together as herinafter to be more particularly described.
The object of this invention is to simplify the construction of wrenches or keys
for use in the mechanical arts in which four or more different sizes of nuts bolts or
screws may be served by one wrench or key in which the four or more different
sizes are arranged to form what is technically termed a double ended wrench
but with different sized openings to fit different sized nuts bolts or screws for the
purpose heretofore set forth.
The method whereby this object may be attained is more particularly described
as follows:-
:-
In a wrench or key in which by preference two pieces of steel or other
suitable metals are shaped and set and each end of each of the two pieces is
perforated with holes of different sizes hexagonal or other shape joined together
by screws or rivets or otherwise or forged in one piece with each end opened
or forked leaving a space between the two adjacent sides opposite to each other
forming four seperate ends in one piece each of the four projecting ends being
pierced with different sized holes hexagonal or otherwise forming one complete
wrench or key with four or more different sized openings suited to different size
nuts bolts or screws all substantially as per drawing in which Fig. 1 shows a
complete wrench in which A is the complete wrench 1, 2, 3, 4 &c. the ends and
B. C. D. E &c. the openings of different sizes each pair being opposite to each
other and suited for different sized nuts bolts or screws. Fig. 2 shows more than
four openings in a complete wrench.
Dated this 15th day of November 1895.
'Improvements in Wrenches or Keys.
I, JOHN TOWNSEND TRENCH of Kenmare, County Kerry, Ireland, Land
Agent, 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 to an improved wrench or key, and it consists essentially
of two plates in the ends of which are formed openings of a suitable size and
shape to receive nuts or the beads of bolts, screws etc. One or both of these
plates have their ends-in which the holes are cut or formed-set back and tho

page_text: two plates are rivetted screwed or otherwise fixed together thus forming a wrench
or key having two sets of holes or openings at each end, the object being to obtain
a wrench which has a greater number of holes or openings compared with its size
and weight, than any similar article heretofore mado.
In the accompanying drawing which illustrates this invention :-
Figure 1 is a view of the side of the improved wrench or key.
Figure 2 is n view of the top thereof, and
Figures 3 and 4 are similar views showing a modification in the construction.
Throughout the views similar parts are marked with like letters of reference.
The wrench or key consists of two plates A and A' of steel or other suitable
metal, in the ends a a and a¹ a' of which are cut or formed suitably shaped holes or
openings to receive nuts or the heads of bolts, screws etc. The ends a a and a' a¹
of the plates are set back as shown, and the two plates are then fixed together by
rivets or by screws or other means, thereby forming a double ended wrench
or key.
As a modification the two plates A and A' may be formed out of one piece of
metal by splitting the ends of the said piece and spreading them apart, and as a
further modification the ends of only one of the said plates may be set back, the
other plate being flat as shown by Figure 4.
It will be obvious that the space between the ends of the two plates must be
proportioned to the size of the largest hole or opening in the said plates, ie., in
proportion to the height of the largest nut or bolt that the wrench or key can be
used on, as the thickness of the nuts and of the heads of bolts is proportioned to
sizes thereof.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
(1) The improved wrench or key as hereinbefore described and illustrated by the
accompanying drawing.
(2) A wrench or key, consisting essentially of two plates in the ends of which
are holes or openings of a suitable size and shape, the ends of one or of both plates
being set back, and the two plates being rivetted screwed or otherwise fixed
together as and for the purpose set forth.
Dated this 21st day of February 1896.
Dated this 21st day of February 1896;
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.