CERTAIN IMPROVEMENTS IN OR ADDITIONS TO ROTATORY PUMPS FOR BAISING AND FORCING WATER OR OTHER FLUIDS
Year: 1825

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
WINCH, of Steward's Buildings, Battersea Fields, in the County of Surrey,
Engineer, send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing
date at Westminster, the Fifth day of March, in the sixth year of His
reign, did, for himself, His heirs, and successors, give and grant unto me, the
said Robert Winch, His especial licence that I, the said Robert Winch, my
exors, admors, and assigns, or such others as I, the said Robert Winch, my
exors, admors, and 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, and also in His said Majesty's
Colonies and Plantations abroad, my Invention of "CERTAIN IMPROVEMENTS
IN OR ADDITIONS TO ROTATORY PUMPS FOR BAISING AND FORCING WATER OR OTHER
FLUIDS;" in which said Letters Patent there is contained a proviso obliging
me, the said Robert Winch, by an instrument in writing under my hand and
seal, particularly to describe and ascertain the nature of my said Invention;
and in what manner the same is to be performed, and to cause the same
to be inrolled in His 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)..

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Robert Winch, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in and by the Drawing hereunto annexed, and the following
description thereof (that is to say):—
Fig. 1 is a front view, Fig. 2 a side view, and Fig. 3 a section of a rotatory
pump, with some of my said improvements or additions to it, in all of which
Figures, as well as in the others to be hereafter referred to, the same letters
of reference indicate the similar parts. A is the rising main. B, in Figs. 1
and 2, a side branch to be used occasionally when the pump is to be employed
as an extinguishing engine, in which case the cap or cover C is to be unscrewed
from the branch B, and screwed upon the end of the forcing main P at D.
E, E, in Fig. 8, are two valves opening upwards; they are shewn as being
posited in a level or flat seat, but they may, if required, be placed in inclined
positions, as shewn in Fig. 5, which is a section of another rotatory pump.
F is the cylindrical working chamber of the pump, having two flat sides or
cheeks G, G, Figs. 1 and 6, with pivot holes in them for the necks or pivots
of the axis of the cylinder H to turn in. This cylinder has four or more
flaps I, I, I, I, hinged to it, which are prevented from extending too far
from it by the catch hooks J, J, J, J, lodging against the ends of the
cavities K, K, K, K, made in the cylinder H; the ends of the flaps act
against the flat sides G, G, of the working chamber F, and their front
edges L, L, L, L, against the internal part of the cylinder of it on one side
only, the flaps on ariving at the top being forced down by encountering
two circular inclined planes, one of which is shewn at M, until they are closed
upon the cylinder H, and which effect is promoted by one of the two arms
N, N, Fig. 5, with friction rollers in them pressing upon each flap as it revolves
underneath them. These arms, N, N, are mounted upon an axis O, with necks
or pivots to it, which work in holes made in each side of the forcing main P,
as shewn in Fig. 6, which is a front view of the rotatory pump shewn in
section in Fig. 5 to receive them. Upon one of the outer ends of the axis O
a pinion Qis affixed, which is driven by a toothed wheel R affixed upon the
axis of the cylinder H, so as to make two revolutions for one of the wheel.
The inclined planes M, M are screwed upon a block or stop water S, which is
secured to the inside of the working chamber F by the screws T, T, T, &c.
Fig. 4 is a plan of the halved collar U which surrounds the rising main A,
Figs. 1, 2, & 3, and is bound together by the screws V, V. W, W, W, W,
in Fig. 8, are joints in the ends of the flaps I, I, I, I, which will enable
those flaps to turn down more readily upon the cylinder H when brought into

page_text: contact with the circular inclined planes M, M, and thereby render the use of
the arms N, N and friction rollers shewn in Fig. 5, together with the axis O,
the wheel R, and the pinion Q, less necessary.
I do not mean or intend hereby to claim as my Invention any of the parts
of this pump which are already known or in use; but I do hereby claim the
application of the catch hooks J, J, &c., which prevent the flaps I, I, &c.
from rubbing too hard against the interior of the working chamber, the
cavities K, K, &c. in the cylinder H, which allow any particles of gravel,
&c. brought up with the water or other fluid to lodge therein, the arms and
friction rollers N, N, which serve to aid in closing the flaps I, I, I, I,
together with the mode of actuating them, and the joints W, W, W, W, in
the flaps I, I, I, I. These rotatory pumps may be worked by the powers of
men applied to the handles, X, X, &c., or of horses or other animals, or by
means of water wheels, steam engines, or other first movers, according to
their size or the various uses they may be applied to.
In witness whereof, I, the said Robert Winch, have hereunto set my
hand and seal, this Fifth day of September, in the year of our Lord
One thousand eight hundred and twenty-five.
Inrolled the Fifth day of September, in the year of our Lord One
thousand eight hundred and twenty-five.