IMPROVEMENTS IN MACHINERY OR APPARATUS FOR RAISING AND FORCING WATER AND OTHER FLUIDS
Year: 1867

page_text: LETTERS PATENT to Thomas Wilson and William Hall, both of the Town
and County of the Town of Newcastle-upon-Tyne, Engineers, for the
Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR RAISING
AND FORCING WATER AND OTHER FLUIDS."
Sealed the 20th December 1867, and dated the 22nd June 1867..
PROVISIONAL SPECIFICATION left by the said Thomas Wilson and
William Hall at the Office of the Commissioners of Patents, with their
Petition, on the 22nd June 1867.
We, THOMAS WILSON and WILLIAM HALL, both of the Town and County of
the Town of Newcastle-upon-Tyne, Engineers, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
RAISING AND FORCING WATER AND OTHER FLUIDS," to be as follows:-
This Invention relates to a peculiar construction and arrangement of
eccentric rotatory pump applicable to all the purposes to which ordinary
centrifugal or steam pumps may be applied, and serviceable also as a fire
engine. This pump may be worked either by direct action or by an assistant
engine in order to raise, lift, or project water or other fluid; to discharge water
from mines, wells, ponds, ships, and steam vessels; for discharging bilge water
or water ballast; or for feeding steam generators of all kinds.
According to this Invention we construct a circular or cylindrical case, of
wood, metal, or other suitable material, through the ends or covers of which,
there is fitted eccentrically a revolving spindle working in suitable stuffing

page_text: boxes; on this spindle inside the case there is fitted a metal disc having
grooves or slots radiating from the centre cut or otherwise formed therein.
Within these radial grooves or slots there are fitted any desired number of
sliding diaphragms or revolving pistons of metal, wood, or other suitable
inaterial; on the ends of these sliding diaphragms projections or studs are
provided furnished with antifriction rollers or not, as preferred, such pro-
jections engaging or working in an annular groove made concentrically in the
inner face of each of the ends or covers of the pump casing. The inlet. and
outlet passages open directly from diametrically opposite sides of the circum-
ferences of the casing. On imparting a rotatory motion to the spindle the
several diaphragms will be caused to rotate round the interior of the cylin-
drical casing, and will be simultaneously caused to slide to and fro along their
guiding grooves or slots by the cam action of the annular concentric groove
on the projections on the end of the diaphragms, thereby keeping the outer
edges of the latter in contact or nearly so with the inner circumference of the
casing
SPECIFICATION in pursuance of the conditions of the Letter's Patent filed
by the said Thomas Wilson and William Hall in the Great Seal Patent
Office on the 21st December 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, THOMAS
WILSON and WILLIAM HALL, both of the Town and County of the Town of.
Newcastle-upon-Tyne, Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of June, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirty-first year of Her
reigu, did, for Herself, Her heirs and successors, give and grant unto us,
the said Thomas Wilson and William Hall, Her special license that we, the
said Thomas Wilson and William Hall, our executors, administrators, and
assigns, or such others as we, the said Thomas Wilson and William Hall, our
executors, administrators, or 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, and vend, within
the United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN MACHINES OR APPARATUS FOR
RAISING AND FORCING WATER AND OTHER FLUIDS," upon the condition (amongst
others) that we, the said Thomas Wilson and William Hall, our executors or

page_text: administrators, by an instrument in writing under our hand and seal, should
particularly describe and ascertain the nature of the said Invention, and in
what manner the same was to be performed, and cause the same. to be
filed in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said Thomas Wilson and William Hall, ilo
hereby declare the nature of our said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and
by the following statement, reference being bad to the accompanying Sheet of
Drawings, and to the letters and figures marked thereon, that is to say:-
Our Invention consists of a peculiar construction and arrangement of
eccentric rotatory pump applicable to all the purposes to which ordinary
centrifugal or steam pumps may be applied, and serviceable also as a fire
engine..
According to this Invention we construct a cylindrical case of metal or
other suitable material, through the ends or covers of which there is fitted
eccentrically a revolving spindle or axis working in suitable stuffing boxes;
on this spindle inside the case is a cylindrical disc of metal or other suitable
material having grooves or slots railiating from the centre formed therein.
Within these radial grooves or slots there are fitted any desired number of
sliding diaphragms or pistons of metal or other suitable material; on the ends
of these sliding diaphragms or pistons projections or studs are provided fur-
nished with antifriction rollers or not, as preferred, such projections engaging
or working in an annular groove made concentrically in the inner face of each
of the ends or covers of the cylindrical case; the backs of these sliding
diagrams or pistons are recessed or dovetailed, so that they work through or
across each other, each piston sliding partly into the opposite groove or or
slot, by which means they are firmly supported in the cylindrical disc at all
points of their rotation. The inlet and outlet passages are placed on opposite
sides of the cylindrical case. On imparting a rotatory motion to the spindle
or axis the several diaphragmns or pistons will be caused to rotate in the
iuterior of the cylindrical case, and will be simultaneously caused to slide to
and fro along their guiding grooves or slots by the cam action of the annular
concentric groove in the ends or covers of the cylindrical case on the pro-
jections on the ends of the diaphragms or pistons, thereby keeping the outer
edges of the latter in contact with the inner circumference of the cylindrical
The outer edges of the diaphragms or pistons may if necessary be
fitted with self-acting packing bars with springs behind, and their ends may
also be fitted in a similar manner.
case.

page_text: In the accompanying Drawing, Figure 1 represents a section at right angles
to and across the axis; and Figure 2 represents a section taken on the line of
the axis and through two of the grooves or slots. The same letters refer to
similar parts on both the Figures.
A is the axis of the pump on which is, either made, solid or fixed by bolts
or keys, the disc B; C is the cylindrical case in which the disc B rotates
eccentrically. The disc B carries four sliding diaphragms or pistons D, D, D, D,
placed radially to the axis A; these diaphragms or pistons slide to and fro iu
the grooves or slots E in the disc B, and have their back edges dovetailed or
recessed so that they work through and across. each other, each piston sliding
partly into the opposite groove. As the disc rotates the diaphragms or pistons
are moved by the annular concentric, grooves F, F, in the ends or. covers of
the cylindrical case C acting on the projections G, G, on the ends of the
pistons. Hand K are the inlet and outlet passages of the pump; and L is
a spring packing in the cylindrical case C, against which the disc B works in
rotating.
Having now described the nature of our Invention we wish it to be under-
stood that we do not bind ourselves to the precise details described and
illustrated; but we claim as our Invention. the arrangement of the grooves
or slots in the rotating disc so that each of the sliding diaphragms or pistons
travels partly into the opposite groove or slot, and the shaping. or recessing
of the back edges of the diaphragms or pistons so that they work across and
through each other.
In witness whereof, we, the said Thomas Wilson and William Hall, have
to this our Specification set our hands and seals, this Twentieth day of
December, One thousand eight hundred and sixty-seven.