Improvements in Rope Stoppers.
Year: 1892

page_text: Date of Application, 1st Sept., 1892
Complete Specification Left, 1st June, 1893-Accepted, 1st July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Rope Stoppers.
I WILLIAM PELHAM BULLIVANT of 72 Mark Lane in the City of London
Wire Rope Manufacturer do hereby declare the nature of this invention to be as
follows:-
My invention has for its object to provide an improved arrangement of rope
stopper which is simple and economical in construction and efficient in action.
According to my invention I make the body part of the stopper of a casting which
can be secured firmly to the deck, or other place where the stopper is to be used.
In this casting I arrange a block which can be moved towards, and from, an
internal face of the casting, so as to grip the rope between itself and the said face,
or to release it. The said block is connected by hinged bars, or levers, so as to
move after the manner of one member of a parallel ruler, and there are toggles
between the casting and the said block which move towards a vertical position
when the rope is being gripped, and into a more inclined position when the rope is
released. provide a lever, or screw, engaging with a recess, or projection, in, or
on, the aforesaid block, the connection of the said lever, or screw, with the said
block, being such that the movement of the block, to grip the rope, is not
prevented, but so that by operating the lever, or screw, the block can be moved so
as to relieve the grip upon the rope, entirely, or to any required extent.
Dated this 1st day of September 1892.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Rope Stoppers.
I, WILLIAM PELHAM BULLIVANT of 72 Mark Lane in the City of London,
Wire Rope Manufacturer do hereby declare the nature of my invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement :—
My invention has for its object to provide an improved arrangement of rope
stopper which is simple and economical in construction and efficient in action.
According to my invention I make the body part of the stopper of a casting which
can be secured firmly to the deck, or other place where the stopper is to be used.
In this casting I arrange a block which can be moved towards and from an internal
face of the casting, so as to grip the rope between itself and the said face or to
release it. The said block is connected by hinged bars or levers, so as to move
after the manner of one member of a parallel ruler, and there are toggles between
the casting and the said block which move towards a perpendicular position when
the rope is being gripped, and into a more inclined position when the rope is
released. I provide a lever, or screw, engaging with a recess, or projection, in, or
on the aforesaid block the connection of the said lever or screw, with the said
block, being such that the movement of the block to grip the rope, is not prevented,
but so that by operating the lever or screw, the block can be moved so as to relieve
the grip upon the rope, entirely, or to any required extent.
I have illustrated in the accompanying drawings rope stoppers made in accordance
with my invention.
Figure 1 is a side elevation. Figure 2 is a plan with the cover on but partly

page_text: broken away and Figure 3 is a plan with the cover removed Figure 3 is a cross
section on the line 1. 2. Figure 3.
These figures shew the arrangement in which a lever is used to effect the required
movements of the stopper by hand.
Figures 4 and 5 respectively are a side elevation and a plan (with the cover
removed) of an arrangement wherein a screw is used to effect the required
movements of the stopper.
A is the casting constituting the body part of the stopper secured firmly to the
deck or other place by any suitable means. B is the block which can be moved
towards and from the internal face of the rib C on the casting so as to grip the
rope between the said block and rib or release the said rope. The block B is
connected to the casting A by bars D secured by pins d constituting hinges so that
the block B moves after the manner of one member of a parallel ruler. E are
toggles the ends of which engage in recesses in the said block and in the part of
the casting at the back thereof. In Figures 1 and 2 G is the operating lever
centered at to the cover H which is secured in place by bolts or otherwise. The
rounded nose g² of the lever enters a recess in the block B for operating the said
block. In Figures 4 and 5 the operation is effected by a screw. The casting A
is provided with a bearing carrying a centered sleeve in which is a screw nut
which can be rotated by a hand wheel for rotating it. A screw I passes through
this nut and is connected by a pin with the block B so that by rotating the
screw nut the block B is drawn in one or the other direction as required.
The hole in the block B in which the nose of the lever G engages and the hole
in the end of the screw I through which the pin i passes are sufficiently elongated
to allow of the movement of the block B to tighten the grip on the rope due to
the strain of the said rope drawing the block B forward.
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 1
claim is
1. In rope stoppers the combination with a casting or base having a fixed face
of an opposed block connected to the base by centered levers and operated or
operating substantially as hereinbefore described with reference to the accom-
panying drawings.
2. The arrangement and combination of parts constituting a rope stopper
substantially as hereinbefore described and shewn in Figures 1. 2. 3 and 3ª of the
accompanying drawings.
3. The arrangement and combination of parts constituting a rope stopper
substantially as hereinbefore described and shown in Figures 4 and 5 of the
accompanying drawings.
Dalhin 1nt dan of T1000
J. H. JOHNSON & Co.,
Agents.