ROPE AND HAWSER STOPPERS
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by the said Thomas Edmond at the
Office of the Commissioners of Patents on the 25th August 1881.
THOMAS EDMOND, of Plymouth, in the County of Devon.
ROPE AND HAWSER STOPPERS."
"
IMPROVEMENTS IN
The object of this Invention is to provide a simple and efficient apparatus for.
holding the ropes or hawsers used in mooring vessels after they have been hauled
on board either by winch or by hand, and while the ropes or hawsers are being
made fast on the vessel.
My improved rope and hawser stopper consists of a bar provided at either end
with an eye. One end of the bar is secured by a shackle and bolt to the deck in
any convenient position, and to the other end of the bar are pivotted two gripping
jaws. One of these jaws is formed at back with a row of ratchet teeth, and to the
outer end of the jaw is pivotted one end of a link. To the outer end of this
link which takes over the toothed jaw a pawl lever is pivotted, and this lever is
intended to act upon the toothed jaw and force it inwards. At the same time the
lever is brought down parallel with the bar, to which it is secured by a sliding
strap or in any other convenient manner.
When it is desired to stop a rope or hawser the sliding strap is drawn down to
free the lever, which with the link is thrown back to allow the jaws to open.
The jaws are then caused to embrace the rope, and the lever with the link is
brought over the toothed jaw.
The pawl tooth of the lever engages with one of the teeth of this jaw, causing.
the jaw to firmly grip the rope or hawser. The lever is then secured to the bar by
the sliding strap.
When the rope or hawser is made fast on the vessel the stopper is removed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Edmond in the Great Seal Patent Office on the
25th February 1882.
THOMAS EDMOND, of Plymouth, in the County of Devon. "IMPROVEMENTS IN
ROPE AND HAWSER STOPPERS."
The object of this Invention is to provide a simple and efficient apparatus for
holding the ropes or hawsers used in mooring vessels after they have been hauled
on board either by winch or by hand, and while the ropes or hawsers are being
made fast on the vessel.
In the accompanying Drawing I have shewn my improved hawser stopper in
side view at Fig. 1, in plan view at Fig. 2, and in side view, and partly closed in
Fig. 3.
A is a bar provided at either end with an eye. One end of the bar is secured
by a shackle and bolt B to the deck in any convenient position, and near the other
end of the bar is pivotted at C¹ a gripping jaw C. This jaw C is formed at back
with a row of ratchet teeth. The prolongation A' of the bar A. beyond the pivot C¹
acts as a second but fixed jaw, between which and the jaw C the hawser is gripped.
To the outer end of the jaw A¹, and on either side thereof, is pivotted a link D.
To the other ends of these links D between which the toothed jaw Centers a
pawl lever E is pivotted, and this lever is intended to act upon the toothed jaw
and force it inwards. At the same time the lever E is brought down parallel
with the bar A (see Fig. 1), to which it is secured by a sliding strap F or in any
other convenient manner.
When it is desired to stop a rope or hawser, the sliding strap F is drawn down
in to the dotted position, Fig. 1, to free the lever, and the links are thrown back,
as shown by dotted lines, Fig. 1, to allow the jaw C to open. The rope or hawser G
is then placed in position, as shewn, and the jaw is closed upon it.
The lever E with the links is then brought over the toothed jaw C, as clearly
Been in Fig. 3, and the pawl tooth of the lever E engages with one of the teeth on
the jaw C.
By applying pressure to the lever so as to bring it down close to the bar A, the
jaw C will be caused to jam the rope or hawser against the jaw A' and the links D.
The lever is then secured to the bar A by the sliding straps F.
When the rope or hawser is made fast on the vessel the stopper is removed.
In order to give a greater bearing surface for the rope, I may cast with the
links D curved lugs or ears D¹. The dimensions of these lugs or ears may be
varied, as may be desired. A similar lug or ear may, if desired, be cast with the
bolt C¹.
Instead of the jaw A', forming part of the bar A, it may be movable and
pivotted at C¹ in the same manner as the jaw C.
Having now described the nature of my Invention for "Improvements in Rope
and Hawser Stoppers" and explained the manner of carrying the same into effect,
I wish it to be understood that under the above in part recited Letters Patent I
claim,―
A rope or hawser stopper, constructed and operating substantially as herein
shewn and described.
In witness whereof, I, the said Thomas Edmond, have hereunto set my hand
and seal, this Twenty second day of February, in the year of our Lord One
thousand eight hundred and eighty two.
.