IMPROVEMENTS IN PUMPS OR APPARATUS FOR RAISING OR FORCING WATER OR OTHER LIQUIDS OR FLUIDS, AND FOR TRANSMITTING THE MOTIVE POWER THEREOF.
Year: 1869

page_text: LETTERS PATENT to Richard Scholefield, of Leeds, in the County of
York, Engineer, for the Invention of "IMPROVEMENTS IN PUMPS OR
APPARATUS FOR RAISING OR FORCING WATER OR OTHER LIQUIDS OR FLUIDS,
AND FOR TRANSMITTING THE MOTIVE POWER THEREOF.'
Scaled the 12th April 1870, and dated the 13th October 1869.
PROVISIONAL SPECIFICATION left by the said Richard Scholefield
at the Office of the Commissioners of Patents, with his Petition,
on the 13th October 1869.
I, RICHARD SCHOLEFIELD, of Leeds, in the County of York, Engineer,
5 do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
PUMPS OR APPARATUS FOR RAISING OR FORCING WATER OR OTHER LIQUIDS OR FLUIDS,
AND FOR TRANSMITTING THE MOTIVE POWER THEREOF," to be as follows:-
This apparatus consists of a casing or cylinder formed of two or
more curves of different radii, that is, having one portion of its circum-*

page_text: ference at a greater distance from the centre or axis than the other, yet
each opposite side being concentric thereto, and having inlet and outlet
passages therein. Within this casing or cylinder is a rotary shaft
passing through a stuffing box in one end and supported in a bearing in
the other end. On this shaft is fixed a cylinder, the external surface of
which fits the internal surface of that portion of the casing which is
of the lesser radius, and thereby forms on the other sides a portion of
an annular space betwixt the said cylinder and the casing. Two (or
more) diaphragms or plates fit easily between the inner surfaces of the
casing, and are made to intersect or cross cach other at about right
angles, and to slide freely in or through the cylinder in slots cut through
the rim thereof. These diaphragms slide in and out in the cylinder
as it rotates, projecting out and fitting the inner surface of the casing,
and thereby driving or forcing the water or other liquid or fluid through
the outlet; or water or other liquids or fluids under pressure may be
applied to drive the inner cylinder, and thereby transmit the power
thereof by pulley and belt or by gearing.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard Scholefield in the Great Seal Patent
Office on the 13th April 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
SCHOLEFIELD, of Leeds, in the County of York, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of October, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Richard Scholefield, Her special
licence that I, the said Richard Scholefield, my exccutors, adminis
trators, and assigns, or such others as I, the said Richard Scholefield,
my executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise,

page_text: DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a cross section taken through the line A, B, in Fig. 2,
which is a longitudinal section taken through the line C, D, in Fig. 1.
E is the casing, which has a movable cover E' secured by screw bolts;
Fis the inlet, and G the outlet; H is the cylinder, with shaft or axis I
passing through stuffing boxes J and J' in the ends of the casing; K
and L are two diaphrams or plates so formed as to intersect or cross
each other at about right angles, and are of such dimensions as to
fit within the casing and to slide in and out freely through the cylinder,
These diaphrams or plates are shown in detail at Figs. 3, 4, 5, and 6,
where it will be seen that the plate K has a slot M for the shank N
on plate L to pass through, and in order to place them in their position
in the cylinder one ring P of plate L is made movable and fixed with
revits when in its position. This apparatus when in use is by preference
fixed, as shewn, with the outlet at top, and it will be seen that the
cylinder H fits close to the casing on one side to the extent of a full
fourth part of its circumference, also that the plate K projects or pro-
trudes from the cylinder and fits to the casing forming a division in
the annular space or passage Q, and the other plate L projects or pro-
trudes ready to fill the annular space or passage (as the cylinder rotates)
a little before the former enters the larger space R, when by its own
gravity and the weight or pressure of water or other liquid or fluid
above it falls to the position in which the plate L is now in; henco
it is evident that a quantity of water or other liquid or fluid equal
to the capacity of the space Q betwixt the two plates as K and L
will be discharged or forced out through the outlet G four times at
each revolution of the cylinder, the plates constantly assuming the
position shewn as the cylinder revolves. Fig. 7 is a cross section of
a similar pump, a little varied in its construction from the one pre-
viously described, which I find more suitable in some cases. Fig. 8 is
a section of the same kind of pump constructed with a loose segment
or filling up piece S, which method of construction is adopted for
the purpose of enabling the inside of the casing to be bored to the

page_text: larger radius. A bush is then cast and turned outside to fit the said
casing, and the inside to fit the cylinder, then cut into segments to
the proper size and form, as herein shewn, which is then fixed in the
casing.
In witness whereof, I, the said Richard Scholefield, have hereunto
set my hand and scal, this Twelfth day of April, in the year of
our Lord One thousand eight hundred and seventy.
RICHARD SCHOLEFIELD. (L.S.)
Signed, scaled, and delivered
by the within-named Richard
Scholefield, in the presence of
W*. TASKER,
Patent Agent,
Halifax & Bradford.