AN INSTRUMENT FOR REGISTERING ANGLES AT SEA
Year: 1847

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME OR BE
MADE KNOWN, I, JOHN RICHARD WATSON, of No. 19, Northampton
Square, Clerkenwell, in the County of Middlesex, Nautical Instrument Maker,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent under the Great Seal of Great Britain, bearing date at Westminster,
the Twenty-fourth day of June, in the eleventh year of Her reign, did grant
unto me, the said John Richard Watson, my exors, admors, and assigns, Her
especial licence, full power, sole privilege and authority, that I, the said John
Richard Watson, my exors, adññors, and assigns, and such others as I, the
said John Richard Watson, my exors, adñiors, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term of years therein mentioned, should and lawfully might make,
use, exercise, and vend, within thart part of the United Kingdom of Great
Britain and Ireland called England, the Dominion of Wales, and the Towns of
Berwick-upon-Tweed, my Invention of "AN INSTRUMENT FOR REGISTERING
ANGLES AT SEA," and is called the Quadrangular Register, in which Letters

page_text: Patent there is contained a proviso that I, the said John Richard Watson,
shall particularly describe and ascertain the nature of my said Invention, and
in what manner the same is to be performed, by an instrument in writing
under my hand and seal, to be enrolled 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, reference being thereunto had, will
more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Richard Watson, do hereby declare that the nature of my said Invention,
and the manner in which the same is. to be performed,.. are .described and
ascertained in manner following, with the aid of the Drawings annexed hereto,
by the words, letters, and figures following, that is to say:
My said Invention consists in a principle of giving controul of hands, so as
to indicate the extreme labour of ships.
G, a staple
This is also
Fig. 1st, the instrument shown sideways, without, the case. Fig. 2nd, the
work plate, shewing the position of the wheels, springs, and ratches." Fig. 3rd,
the upper plate, with the wheels for the head and stern motions. Fig. 4th,
the instrument complete. M, M, are metal framings; on these are fixed the
work plate J. B, B, B, B, ratch wheels of 180 teeth; on these are the
harbour of the bands, also the small wheels of 40 teeth; the upper two are
bevel wheels. D, D, are weight wheels of 80 teeth, acting in the small
wheels C, C, driving the lower ratches B, B. This is the starboard and port.
L, L, L, L, are clicks, on which the springs N, N, N, N, act.
piece, running under the clicks, for the purpose of lifting them.
fixed to the lifting bar O. This connects with lifting the flaps T, T, T, T.
These are to prevent vibration of the weights when let down. E, E, E, E,
are weight staffs. F, F, F, F, weights fixed by a screw. H, H, shown in
Fig. 1st, are the bankings. Fig. 4th, the instrument's appearance when on
board ship, as finished. As the ship rolls the weights expand, moving the
hand of its respective wheel. This is fixed by the clicks. By a pressure of
the key P the flaps and clicks are lifted; and as the weight falls to the
banking, it passes over the flap, which prevents vibration. When the key
is relieved from pressure, the flaps and clicks resume their place. The dial
contains four circles of degrees for the respective angles, marked Port; Star,
Head, Stern.
As witness my hand and seal, the Twenty-third day of December, in the
T
Lundund and frutos naman
JOHN RICHARD (L.s.) WATSON.

page_text: AND BE IT REMEMBERED, that on the Twenty-third day of December,
in the year of our Lord 1847, the aforesaid John Richard Watson came
before our said Lady the Queen in Her Chancery, and acknowledged
the Specification aforesaid, and all and every thing therein contained and
specified, in form above written. And also the Specification aforesaid was
stamped according to the tenor of the Statute made for that purpose.
Enrolled the Twenty-third day of December, in the year of our Lord One
thousand eight hundred and forty-seven.