CERTAIN IMPROVEMENTS IN CHAIN PUMPS, THE MODE OF WORKING THE SAME, AND IN THE WELLS FOR RECEIVING SUCH PUMPS, WHEREBY MUCH MANUEL LABOUR. WILL BE SAVED, ONE OF WHICH IMPROVEMENTS MAY BE APPLIED TO OTHER USEFUL PURPOSES
Year: 1806

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
OTTLEY, of Myrtle Hill, near Cearmarthen, in Cearmarthenshire, Esquire,
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-first day
of March, in the forty-sixth year of His reign, give and grant unto me, the
said Richard Ottley, with JAMES JEANS, of Portsmouth, in the County of
Hants, Ship Builder, our exors, adiñors, and assigns, His especial licence that
we, the said Richard Ottley and James Jeans, our exors, adiñors, and assigns,
should and lawfully might, during the term of years therein mentioned, make,
use, exercise, and vend, within England, Wales, and the Town of Berwick-
upon-Tweed, and also in all His Majesty's Colonies and Plantations abroad,
our Invention of "CERTAIN IMPROVEMENTS IN CHAIN PUMPS, THE MODE OF
WORKING THE SAME, AND IN THE WELLS FOR RECEIVING SUCH PUMPS, WHEREBY
MUCH MANUEL LABOUR. WILL BE SAVED, ONE OF WHICH IMPROVEMENTS MAY BE
APPLIED TO OTHER USEFUL PURPOSES;" in which said Letters Patent there is
contained a proviso obliging us, the said Richard Ottley and James Jeans, or
one of us, by our instrument in writing under our hands and seals, or under
the hand and seal of one of us, to cause a particular description of the nature
of our said Invention, and in what manner the same is to be performed, to be
inrolled in His Majesty's High Court of Chancery within one calendar month
after the date of the said recited Letters Patent, as in and by the same, rela-
tion being thereunto had, may more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Richard Ottley, do hereby declare that our said Invention, and the manner in
which the same is to be carried into eflect and practice, are described in
manner following; that is to say —
The Drawings hereunto annexed do exhibit our said improvements, which
consist in certain methods of connecting the chain pumps with the capstan of
a ship, or with a temporary crab or capstan, to be used for the purposes
herein mentioned, and also in the construction of the pumps and the wells in
which the same are placed, and also in a method of renewing the teeth of the
wheels which carry the chain in chain pumps and of other wheels for general
purposes. And for the more perfect and full explanation of these our said
Inventions, we have made and affixed the said Drawings hereunto; but at the
same time we do declare that the dimensions of the several parts, and the
relative situations of the same with regard to each other, may be varied
according to the size and construction of the ship or vessel in which the same
are or may be applied or used, and accordingly as motives of convenience or
utility shall suggest to any workman competently skilled in works of the nature
of those herein described.
In Fig. 1, A, A, represent the capstan, to which, at some convenient part,
we fix a wheel B, having bevel teeth for the purpose of driving another wheel
C, which is also provided with bevel teeth, and serves to carry round the
arbour D, D, which, for the purpose of being unshipped, is divided at E, but
when in use is connected all in one by the collar or socket E. The same
letters denote the same things. in Fig. 2 as in Fig. 1. The shaft D carrics
round the wheel F, and upon the same axis one of the chain pumps may be
fixed. Two other wheels, G, G, are driven by E, and are used to work chain
pumps H, H; and the axis of the wheels G, G, being continued at I, serves to
work two other chain pumps L, L. The last-mentioned axis I, I, have each
a break or discontinuation in the middle, which is covered by the socket K,
but when K is drawn back the connections between the pumps L, L, and the
wheels G, G, are broken off. M, M, are the extremities of the axis, to which
common handles may be applied for working in the usual manner without the
capstan whenever circumstances or convenience may render this method
desirable. It will easily be understood from this description that a greater
or smaller number of pumps may be applied connected and brought into
action at once according to the force which it may be convenient or practicable
to apply to the capstan.
Fig. 3 shews the improved form of the wheel which we use to carry the
chain in our bum and at R Fio 9 is shown the manner in which wo annle

page_text: a wheel at the lower part of our pump, having prominencies, projections, or
divisions instead of the simple roller which is commonly used. The advantage
of this last improvement is, that the pump is less liable to be choaked by any
fragments or other matters which may be introduced by accident into the well.
Q, Q, Q, shews the well, which is fortified or secured all round, but admits
the water through perforations made for that purpose. The inner lining of the
well is made to slide or draw up, as is seen at S, and is to be done whenever
the limbers may be choaked, or the free passage of the water shall or may
require one or more of the said interior parts to be so drawn up. N represents
the upper deck, and O the middle deck, and P the lower deck.
At A, in Fig. 8, is exhibited a method of renewing the teeth, cogs, or pro-
jections of the pump wheels when the same shall by accident or wear have
become imperfect. The working extremity of the tooth B is fitted by a double
chamfer into the part A, where it may be secured with one or more pins,
bolts, or screws; and whenever B shall become defective by violence or by
wear it can easily be taken out and another piece substituted in its place (for
which purpose a number of such pieces may be kept on board ready made).
This Invention may be applied to other toothed wheels; or, otherwise, a piece
carrying a number of teeth may be applied to the rim of a wheel, and shifted
when occasion requires, according to the method delineated in Fig. 4, which is
so clearly intelligible from the Drawing as to need no farther description.
In witness whereof, I, the said Richard Ottley, have hereunto set my
hand and seal, the Twenty-first day of April, in the year of our Lord
One thousand eight hundred and six