A WINDLASS UPON AN IMPROVED CONSTRUCTION, WHICH MAY BE APPLIED TO SHIPS, AND OTHER USEPUL PURPOSES
Year: 1801

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
GIBSON, of the Adelphi, in the Parish of Saint Martin-in-the-Fields, in the
County of Middlesex, Wharfinger, send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Twenty-fifth day of
February, in the forty-first year of His reign, give and grant unto me,
the said Robert Gibson, His especial licence, that I, the said Robert Gibson,
during the term of years therein mentioned, should and lawfully might use,
exercise, and vend, within England, Wales, and the Town of Berwick-upon-
Tweed, my Invention of "A WINDLASS UPON AN IMPROVED CONSTRUCTION, WHICH
MAY BE APPLIED TO SHIPS, AND OTHER USEPUL PURPOSES;" in which said Letters
Patent there is contained a proviso obliging me, the said Robert Gibson,
by an instrument in writing under my hand and seal, to cause a particular
description of the nature of my said Invention, and in what manner the
same is to be performed, be inrolled in the High Court of Chancery within
one calendar month after the date of the said recited Letters Patent, as in
and by the same (relation being thereunto had) may more fully and at large
appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Robert Gibson, do hereby declare that the nature of my improved con-
struction of a windlass, and the manner in which the same is to be performed,
is described in the Plans or Drawings hereunto annexed, and the following
description thereof, that is to say :-

page_text: Figure I. A represents the windlass of a ship with a strong iron axis the
whole length, and the wood part covering the axis cut into five parts, as
represented by Figures 1 b, 1 c, 1 d, 1 c, 1 f. 1 d represents the centre, with
the steps for the two pauls, which are fixed to the belfry a, a.
No. 2 repre-
sents the ratchet wheel fixed on the iron axis, with a socket for the levers C, C,
which are moveable, and spring and catch in the socket. No. 1 é, represents
a part of the wood of the windlass where the cable winds on, fixed to the iron
axis by means of a bolt or other fastening. No. 3, the standards. No. 1 f
represents the end part of the windlass, also fixed to the iron axis by means of a
bolt or other fastening.-N.B. The other end of the windlass, as represented
by Nos. 16 and 1c (the same is particularized in Nos. 1 e and 1 f. B repre-
sents a block fixed to the mast, with two shivers with a rope passing
over from the extremity of one lever to the extremity of the other. C, C,
represents the levers with blocks at the end. D, d, represents blocks hooked
to the deck, with a rope reeved through the blocks on the levers at C, C,
by pulling of which rope brings the lever C to the deck, raising at the same
time the other lever C, and gives the windlass one quarter of a revolution.
E represents a stop for the cable, which passes over a roller marked E, e,
fixed in the top of a strong post firmly placed before the windlass, with a lever
marked D, with its centre fixed to the belfry a, a, and the lower part of the
said lever D hollowed, so as to embrace a part of the cable over the roller
E, e, and. by means of a block F hooked to the deck, with a rope passing from
the end of the lever D, through the block F, will depress the lever D
sufficiently to hold the cable. G represents the hawser hole, with a strong
roller for the cable to pass over, as No. 1, 9, and with the rollers h, h, on each
side to prevent friction when the ship yaws. Section of block B represents the
ends of the shivers i, i, being countersunk in the wood, which prevents the rope
from being entangled.-N. B. the small blocks-k, k, are countersunk in the
same manner as the large block B.
Figure 2 represents the machine for the purpose of raising water out of
wells, or coal out of pits, or for any other purpose where great purchase is
required. H represents the windlass, with a strong iron-axis-the-whole-length,
and the wood part covering the axis cut into three parts, Nos, 1 a, 1 b, 1 c. 1 a
represents the centre of the windlass, with the steps for the two pawls,, which
are fixed to the standards at each end. Nos. 2, 2, represent the frame or
standard of the windlass. Nos. 3, 3, 3, represent the post, yard, and frame.
Nos. 4, 4, represent the ratchett and socket, with their levers, as particularized
in Nos. 2, 2, in Figure 1. I represents a strong iron axis, with cog wheels,
with a bandle or crank at the end, with a wood cylinder at each end, with

page_text: ratchet aud stop. Nos. 5, 5, represent blocks hooked to two posts in the
ground, with a rope reeved through the blocks A, A, at the extreme end of
the levers B and C, and the end of the rope to pass over the cylinder K, which,
being wound up, brings down the lever B and raises up the other lever C, by
the rope being passed under the cylinder L. Nos. 1 and 1, the standards.
In witness whereof, I, the said Robert Gibson, have hereunto set my
hand and seal, the Twenty-fifth day of March, in the year of our Lord
One thousand eight hundred and one.