IMPROVEMENTS IN WINDLASSES
Year: 1841

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
ANDERSON, of Newcastle, Engineer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her.
Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Fifth day of April, in the fourth year of Her reign, did, for
Herself, Her heirs and successors, give and grant unto me, the said James
Anderson, Her especial licence, full power, sole privilege and authority, that I,
the said James Anderson, my exors, admors, and assigns, or such others as
I, the said James Anderson, my exors, adñiors, or assigns, should at any.
time agree with, and no others, from time to time and at all times during the
term of years therein expressed, should and lawfully might make, use, exercise,
and vend, within England, Wales, and the Town of Berwick-upon-Tweed, my
Invention of." IMPROVEMENTS IN WINDLASSES;" in which said Letters Patent.
is contained a proviso, that I, the said James Anderson, shall cause a particular
description of the nature of my said Invention, and in what manner the same
is to be performed, to be inrolled in Her said Majesty's High Court of
Chancery within six calendar months next and immediately after the date of
the said in part recited Letters Patent, as in and by the same, reference being
thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
James Anderson, do hereby declare that the nature of my Invention, and the.
manner in which the same is to be produced, applied, and carried into effect,
is herein-after particularly described, and set forth in and by the following

page_text: statement thereof, reference being had to the Drawing hereunto annexed,
and to the figures and letters marked thereon, that is to say:-
My Invention consists in a new arrangement, and combination of
mechanical principles, applicable to a ship windlass for heaving the anchor
or anchors, in conjunction with a winch for other purposes, to be made with
or without the winch, (that is to say,) the windlass without the winch or the
winch without the windlass, or both windlass and winch in conjunction, as
windlass, or other parts of the windlass, as convenience requires it. The cogs
of the wheels are cast so as the angle of the endless screw applied as power
will bear and work right across the, cogs, which I claim, as new; whereas, in
the ordinary way, where screws have been used, they have been cast with
oblique of bevil.cogs, so. that. the angle of the screw only, bears, on the centre
of the cogs, which gives my method.a. great; superiority, in, strength and
steadiness. in working. The power applied to the wheelss to give motion to
the windlass.or..winch. is. an endless screw or.screws to be, turned by a handle
or. handles the endless. screw or screws.to. consist offione,' two; or, more
threads, according-as. power-is, required for. .vessels..varying in; tonnage.;; the
endless screw..or ścrews, to have a.right or left handed thread or threads; upon
them, as purposes. require. The endless screw or, screws, will, shift in, and
out of gear of the wheels on. the windlass or winch: by means of sliding
bearings and keys. as- represented in Figures and 2; the carriages for the
endless screws. spindles to contain the sliding..bearings, and, to be bound
together with an iron stretcher, and bolted to the windlass bits,, as, represented
in Figures 1 and 2. By means of the sliding bearings, the windlass.can,be
put into motion separate from. the winch, or the winch separate from the
windlass, or both windlass and winch put, into. motion, togetlier if, required.
The wheels on the winch to be the same pitch of cog and description as the
wheels' on: the windlass.;.. the weight bar. for,. the winch, to have, a ratchet
wheel on each end, right. and 'left, to prevent the return of the roll,ras repre
sented in Figures 1 and 2; the windlass purchase, as represented in Figure:8,
without a 'winch, to have carriages to contain sliding, bearings, and keys to
shift the endless screws in and out of gear of the wheels, as before. specified..
on the windlass, so as to throw the windlass entirely out of the power applied,
and prevent accident in the working parts when the ship, is riding; the-