IMPROVED MACHINERY OR APPARATUS PROALTOPPING
Year: 1853

page_text: LETTERS PATENT to William Edward Newton, of the Office for
Patents, 66, Chancery Lane, in the County of Middlesex, Civil
Engineer, for the Invention of "IMPROVED MACHINERY OR APPARATUS
PROVISIONAL SPECIFICATION left by the said William Edward
Newton at the Office of the Commissioners of Patents, with his
Petition, on the 25th July 1858.
I, WILLIAM EDWARD NEWTON, do hereby declare the nature of the
said Invention for "IMPROVED MACHINERY OR APPARATUS FOR STOPPING
CABLES to be as follows:-
This Invention consists of a metallic ridge secured to the deck of
a vessel near the hawse hole, and a pawl secured to the bulwark or
knight head (or other suitable support) in such a position that its
acting end will fall upon the top of said ridge. The ridge is placed in
such a position that the cable in its passage from the hawse hole to
the windlass must pass over it. Ears or flanges rise from the extre-
mities of the ridge to prevent the escape of the cable therefrom, and
the operating end of the pall extends the whole distance between the
said
ears, so as to insure its action upon every link of the cable. As
the cable passes over the ridge every link necessarily turns flatwise
upon it, and the pawl is in such a position that the inoment a link
turns sideways the pawl will fall on to it immediately in the rear of the

page_text: preceeding link, and in such a position that the rear end of the said
preceeding link will bear against the side of the ridge and the end of
the pall in case the cable should slip upon the windlass, thus insuring
the action of the pall upon every link of the chain, and dividing the
strain between the ridge and the paul, so that in case the cable should
surge or slip upon the windlass it could not run back again through the
hawse hole.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Edward Newton in the Great Seal Patent
Office, on the 25th January 1854.
year
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
WILLIAM EDWARD NEWTON, of the Office for Patents, 66, Chancery
Lane, in the County of Middlesex, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth day of July, in the
of our Lord One thousand eight hundred and fifty-three, in the seven-
teentli year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Edward Newton, Her special
licence that I, the said William Edward Newton, my executors, ad-
ministrators, and assigns, or such others as I, the said Williamı
Edward Newton, my executors, administrators, and assigns, should at
any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and law-
fully might make, use, exercise, and vend, within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and Isle of Man,
an Invention for "IMPROVED MACHINERY OR APPARATUS FOR STOPPING
CABLES," being a communication from abroad, upon the condition
(amongst others) that I, the said William Edward Newton, by an
instrument in writing under my hand and seal, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be
filed in the Great Seal Patent Office within six calendar months next.
and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Edward Newton. do

page_text: hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascer-
tained in and by the following statement, reference being had to the
Drawing hereunto annexed, and to the letters and figures marked
thereon (that is to say):"
This Invention of "Improved Machinery or Apparatus for Stopping
Cables," which has been communicated to nic from abroad by my
foreign correspondent, consists principally of a metallic ridge secured to
the deck of a vessel near the hawse liole, in combination with a pawle
secured to the bulwark or knight head, or other suitable support, in
such a position that upon its acting it will fall upon the top of the
said ridge. The ridge is placed in such a position that the cable if its
passage from the hawse hole to the windlass must pass over it. Ears
or flanges rise from the extremities of the ridge to prevent the escape
of the cable therefrom, and the operating end of the pawle extends the
whole distance between the said cars, so as to ensure its action upon
every link of the cable. As the cable passes over the ridge every link
necessarily turns flatwise upon it, and the pawle is in such a position
that the moment a link turns sideways the pawle will fall on to it
immediately in the rear of the preceding link, and in such a position
that the rear end of the said preceding link will bear against the side
of the ridge and the end of the pawle in case the cable should slip
upon the windlass. By this means the action of the pawle upon every
link of the chain is ensured, and the strain is divided between the ridge
and the pawle, so that in case the cable should surge or slip upon the
windlass it could not run back again through the hawse hole.
In order, however, that the nature of the Invention may be properly
understood, I have shown in the accompanying Drawing two views of
the improved cable stopper as adapted to a ship's deck. Fig. 1, is a
plan view; and Fig. 2, a sectional elevation of the whole apparatus
complete, with a chain cable extending from a windlass through a
hawse hole in the ship's side.
.
The ridge over which the cable passes is shewn at i, and it has been
found expedient to elevate this ridge as high as can be done without
bringing the cable in contact with the upper side of the hawse hole,

page_text: and by so doing the amount of friction between the moving cable and
the hawse hole is greatly diminished, and the hoisting and, kinking of
the cable at that point is prevented.
This improved chain stopper is as well adapted to be used with the
windlass as with a capstan, as the lateral variation of the cable upon
the windlass cannot produce any imperfection in the working of the
stopper, as will be readily apparent. The pawle f, may be elevated
and .retained in an elevated position by à person at a distance by
means of the cord p, represented in Fig. 2.
'I am aware that a pawle or nipper has been hinged above the hawse
hole for the purpose of stopping the cable by pressing it against the
underside of the hawse hole; and I am also aware that a chain stopper
has been described which consists of two concave plates of ironi
between which the chain passes, the lower one of the said plates being
firmly secured to the deck, and the upper plate being turned upon a
hinge, and the chain stopped by pressing it tightly between the said
plates by means of leverage applied to the upper plate, and, therefore,
I wish it to be understood that I do not claim any modification of either
the said chain stoppers.
But what I do claim as new in the present Invention, and desire
to secure by Letters Patent, is, the use of the ridge i, affixed to the
deck of a vessel between the hawse hole and the windlass, in com-
bination with a heavy pawle f, placed above it, so that each moving
link of the cable is turned flatwise in passing over the ridge, and each
link is acted upon by the pawle and prevented from running back.
In witness whereof, I, the said William Edward Newton, have
hereunto set my hand and seal, the Twelfth day of January, in
the year of our Lord One thousand eight hundred and fifty-four.
Witness,
.J. W. MOFFATT,
66, Chancery Lane.
W. E. NEWTON. (L.S.)