Year: 1896

page_text: Date of Application, 21st Apr., 1896-Accepted, 23rd May, 1896
I, RODNEY OWEN RICHARD RUSSELL, of Roche, in the County of Cornwall,
Works 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 :-
My invention relates to an improvement in wrenches, and it has for its object to.
construct a wrench which will be exceedingly simple, durable and economic in its.
construction, and whereby the movable jaw may be locked or released at nuy point
in its travel on the shank by a slight movement of the thumb while the wrench is
being held in the hand; and another object of the invention is to construct a
wrench embodying but few parts, any of which may be duplicated and none of
them being liable to disarrangement.
.
The invention consists in the novel construction and combination of the several
parts; as will be hereinafter fully set forth, and pointed out in the claims.
Reference is to be had to the accompanying drawings, forming a part of this
Specification, in which similar characters of reference indicate corresponding parts.
in all the figures.
Figure 1 is a side elevation of the improved wrench. Fig. 2 is a horizontal
section taken substantially on the line 2 2 of Fig. 1. Fig. 3 is a similar tection on
the lino 3 3 of Fig. 1, and Fig. 4 is also a horizontal section taken on the line 44
of Fig. 1.
In carrying out the invention the shank A of the wrench is provided with the
usual fixed jaw 10, aud the said shank is made to enter a handle B, the said handle
being made in two sections 6 and 6, the section b being the receiving-section of the
shank, having a suitable slot 11 made therein, as shewn in Figs. 3 and 4, while the
section b may be termed a "cover-section," and these two sections are connected
by screws 12 or their equivalents. The handle is preferably made much wider at
the top than at any other portion in its length, being shaped at its lower end iu.
such manner as to be conveniently grasped by the hand.
A yoke 13 is fitted to the upper or outer portion of the handle, having an
opening through which the shank passes, and the cap is usually of the same contour
and size as the wider end of the handle. The yoke 13 forms an important part of
my construction and is provided so that the sectional handle will not have to bear
the strain of moving parts, which would tend to spread the sections. It will
also be seen that the shoulder a of the shank A bears upon the yoke and holds.
the same firmly against the ends of the handle-sections, and since the shank is
in turn held by the bolts 12 it will be seen that the parts are made very secure.
The wider end of the handle, at what may be termed its "front," has a vertical.
socket 14 made therein, preferably circular in cross-section, and this socket is met
by a horizontal recess 15 made in the handle, and is of angular shape, as shown in
Fig. 3.
The movable jaw 16 is provided with the usual sleevo 17, the sleeve and jaw
being fitted to slide on the shank A between the handle-cap and the fixed jaw 10..
The adjustment of the movable jaw is accomplished through the medium of a
slotted or mutilated screw 18, which is rendered plain at its lower end, the said
end being adapted to pass loosely through an opening in the cap of the handle and
into the socket 14 of the handle, as shown in Fige. 1 aud 3. In the construction
of this mutilated screw the threads 19 are produced upon opposing sides, the

page_text: intervening surfaces of the screw being plain, and the threaded portion of the
screw is made to enter a correspondingly-threaded bore 20, made in the sleeve of
the adjustable jaw, as illustrated in Fig. 2. A thumb-piece 21 is secured to the
mutilated screw, being passed through the recess 15 of the handle, as is also shown
in Figs. 1 and 3. Thus it will be observed that upon turning the screw so that its
threads will register with the plain surfaces of the bore 20 the adjustable jaw may
be moved on the shank A to any required position relative to the fixed jaw, and
when the position has been determined by simply turning the thumb-piece 21,
which may be readily done while the wrench is grasped in the hand, the threaded
surfaces of the screw 18 will be made to coincide with the threaded portious of
the bore 20 in the adjustable jaw, thus holding tho said jaw stationary, and
it is evident that no matter in what position the adjustable jaw may be placed
this locking action may be accurately, conveniently, and alinust instantly
accomplished.
By means of the yoke 13 the screw 18 and thumb-piece 21 may be operated
freely and without danger of forcing the sections of the handle apart, it being thus
seen that the invention is particularly adapted to that class of wrenches in which
the handles are of two longitudinal parts, the threaded shaft having a bearing
between the same.
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. In a wrench, the combination of a shank, a handle, the same being formed of
two sections jointly embracing the shank, a movable jaw sliding on the shank, a
revoluble screw connected to the jaw and to the handle, and a yoke at the end
of the handle, said yoke embracing the sbank and the screw, substantially as
described.
2. In a wrench, the combination of a shauk, a handle having sections jointly
embracing the shank, a sliding jaw movable on the shank, a yoke lying against the
end of the handle which is adjacent to the sliding jaw and held thereto by a
shoulder on the shank, a screw connected with the sliding jaw and having hearings
in the yoke, and a thumb-piece connected to the screw and movable in a recess in
the handle, substantially as described.
Dated this 21st day of April 1896.
F. W. GOLBY,
36, Chancery Lane, London, W.C., Patent Agent for the Applicant.