Improvements in Wrenches or Spanners for Axle Caps, Nuts, and the like.
Year: 1890

page_text: Date of Application, 11th Sept., 1890-Accepted, 11th Oct., 1890
COMPLETE SPECIFICATION.
Improvements in Wrenches or Spanners for Axle Caps, Nuts,
and the like.
We ROBERT CANNING JONES, and JOHN WILLIAM CUNNINGHAM, both of 196 Black-
friars Road in the County of Surrey, Engineers 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 statements :-
Our invention relates to improvements in wrenches or spanners for axle caps, nuts
and the like and has for its object to provide a tool which can be manipulated in an
easier manner and with more power than heretofore.
In carrying my invention into practice I provide a circular block or head furnished
with one central and four or more. symmetric perforations through which pass
the screw threaded shanks, of four or more brass or other sockets, fixed thereto
by nuts.
In these sockets are pivoted an equal number of jaws passing through an octogonal
centre piece divided by means of metal strips into four trapezirdal slots these strips
extending inwardly from the outer frame of the said piece to the hub thereof. This
centre piece is moreover provided with two long arms or handles formed integrally
therewith. Each jaw is bent in two, while its free end is enlarged so that when the
four jaws are locked they form an octagon together. A screw passes through the tapped
head and through the centre piece aforesaid being secured to the latter by means of
a nut. This screw is surmounted by a hand wheel or handle by means of which the
jaws can be closed upon any size cap or nut, which can be subsequently screwed
or unscrewed by turning the two handles aboved mentioned in one direction or
the other.
And in order that our invention may be more fully understood, we have shewn the
same in the accompanying drawings in which
Fig. 1, is a front elevation of the wrench or spanner.
Fig. 2, is a plan, and
Fig. 3, a central vertical section of the same.
Fig. 4 is a plan of the head or block shewing the jaws in section.
Fig. 5 is a plan of the centre piece and of its two arms or handles.
C
As shewn more particularly in Fig. 3, and 4, the head or circular block is centrally
furnished with a tapped perforation for the passage of the screws and is provided
with four rectangular recesses r, 1 2 3 terminating into circular perforations p p¹p² p³.
In the recesses fit the sockets a a' a² a³, the screw threaded shanks b 61 62 63 of which
pass through the above perforations and are secured to the head by the nuts n n' n² n³.
In these recesses are pivoted upon the pins ce c² 3 the four jaws jjjj³ enlarged at
their free extremities and bent centrally as shewn in Fig. 1, and 3. These four jaws
pass equally through the four trapezoidal slots t t t² 3 of the centre piece P. shown
separately in Fig. 5, and furnished with the two handles or arms 9 g and with the
hub e through which pass also the screws aforesaid being bolted thereto by a nut d.
By turning the hand wheel w and moving the screw s in or out the jaws can be drawn
together until they fit tightly upon the cap required to be screwed or unscrewed
(Fig. 1.) or separated (Fig. 2), when by turning the handles g g¹ in one direction or
the other the said cap can be tightened or loosened.

page_text: 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
The improved wrench or spanner for axle caps, nuts and the like arranged
constructed, and operating, substantially as and for the purpose described and
shewn.
D
1
111
1800
HUGHES, SON & Co.,
38, Chancery Lane, W.C., Agents.