Improvements in Rope Grips for Haulage or other Purposes.
Year: 1894

page_text: Date of Application, 5th Mar., 1894
Complete Specification Left, 5th Dec., 1894-Accepted, 5th Jan., 1895
PROVISIONAL SPECIFICATION.
Improvements in Rope Grips for Haulage or other Purposes.
I, JOSEPH HENRY CRAVEN of Westgate Common Foundry, Wakefield in the
County of York, Engineer do hereby declare the nature of my invention to be as
follows:-
My invention has for its object to provide a simple and efficient rope grip which
is readily applied to and released from the rope.
According to my invention I provide two jaws connected together by continuations
which at their upper part are connected, so that they can open out for releasing the
rope or be caused to approach each other for gripping the rope. The operation of
the jaws for gripping the rope is effected by means of a forked lever operating on
inclined surfaces which intervene between the jaws or the continuations thereof and
the inner sides of the forked lever. These inclined surfaces are situated below the
point upon which the continuations of the jaws turn. By operating the lever it by
acting through the said inclined surfaces, forces the jaws together with the requisite
pressure to grip the rope between them. By moving the said lever in the other
direction, this pressure is relieved and the grip of the jaws upon the rope is released.
To facilitate the opening of the jaws when so released a spring may be placed
between the continuations of the jaws.
Dated the 5th day of March 1894.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
Improvements in Rope Grips for Haulage or other Purposes.
I JOSEPH HENRY CRAVEN of Westgate Common Foundry Wakefield in the
County of York Engineer, 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 has for its object to provide a simple and efficient rope grip which
is readily applied to and released from the rope.
According to my invention I provide two jaws connected together by continuations
which at their upper part are conrected, so that they can open out for releasing the
rope or be caused to approach each other for gripping the rope. The operation of
the jaws for gripping the rope is effected by means of a forked lever operating on
inclined surfaces which intervene between the jaws or the continuations thereof and
the inner sides of the forked lever. These inclined surfaces are situated below the
point upon which the continuations of the jaws turn. By operating the lever, it, by
acting through the said inclined surfaces forces the jaws together with the requisite
pressure to grip the rope between them. By moving the said lever in the other
direction, this pressure is relieved and the grip of the jaws upon the rope is released.
To facilitate the opening of the jaws when so released, a spring may be placed
Letween the continuations of the jaws.

page_text: In order that my invention may be fully understood I will further describe the
same with reference to the accompanying drawings Figure 1 of which represents in
side elevation a rope grip constructed according to my invention. Figure 2 is an
end view of the same and Figure 3 is a transverse section taken along the line 1-2
Figure 1.
A A are two jaws recessed or concaved on their inner faces to embrace the hauling
rope B. These jaws are provided with extensions A³ through the upper ends of
which passes a bolt a by which the jaws are connected together so as to admit of the
jaws opening and closing, the said bolt also connecting to the extensions A² a loop
or shackle b or the like by means of which the gripping device may be connected to
a truck corve or other article to be hauled. On the outer side of each jaw or.
extension A thereof is an inclined surface c and centred at d to the jaws is a forked
lever C, the fork e of which lever embraces the jaws A so that by depressing this
lever the inner faces of the fork are caused to act on the inclined surfaces c so as to
close the jaws onto the hauling rope and thereby securely attach the gripping device
and the article connected thereto, to the said hauling rope. By moving the lever C
in the reverse direction the fork e will leave the inclined surfaces c on the jaws and
thereby remove the pressure of the jaws from the hauling rope and allow the said
rope to pass freely between the jaws. f is a spring interposed between the jaws A
which spring assists in opening the said jaws when the pressure of the lever is
removed from the inclined surfaces c and also serves to retain the lever elevated and
prevent it by its weight from acting automatically to close the jaws.
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 combination and arrangement of parts constituting the improved rope grip
for haulage or other purposes substantially as hereinbefore described with reference
to the accompanying drawings.
2. A rope grip for haulage or other purposes consisting of the combination of two
jaws connected together so that they can open out to release the rope or be caused
to approach each other for gripping the rope; inclined surfaces on the jaws or on
continuations hereof, and a lever centred to the jaws for operating on the inclined
surfaces to close the jaws substantially as hereinbefore described.
Dated this 5th day of December 1894.
JOHNSONS & WILLCOX,
Agents.