AN IMPROVED CONSTRUCTION OF ROTARY PUMP.
Year: 1856

page_text: LETTERS PATENT to Alfred Vincent Newton, of the Office for Patents,
66, Chancery Lane, in the County of Middlesex, Mechanical Draughts-
man, for the Invention of "AN IMPROVED CONSTRUCTION OF ROTARY PUMP.".
_ A communication.
Sealed the 5th August 1856, and dated the 8th May 1856.
PROVISIONAL SPECIFICATION left by the said Alfred Vincent Newton:
at the Office of the Commissioners of Patents, with his Petition, on the.
8th May 1856.
I, ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane,
in the County of Middlesex, Mechanical Draughtsman, do hereby declare"
the nature of the said Invention for AN IMPROVED CONSTRUCTION OF ROTARY'
PUMP, to be as follows:-
The object of this Invention is to simplify the construction of rotary pumps, 1
and to increase their efficiency. For this purpose, in the circular case of the
pump a circular disc or partition is mounted on a central shaft, so as to divide
the case into two compartments, and on one face of the disc curved blades or.
wings are fitted, which project from the central axle to a little beyond the
periphery of the disc; the configuration of these blades is such that they will
correspond to the sectional figure of the case. The suction pipe enters the case
at the centre, and it is fitted with a core provided with with vanes, which form
curved passages in the pipe of such a nature that they will impart an initiatory

page_text: rotary motion to the incoming water in a direction contrary to that in which
the blades of the disc revolve. Behind the disc the exit or discharge pipe is
situate, and when rotary motion is imparted to the disc the water or other
fluid will be drawn into the case, and forced past the rotating disc (the
diameter of which is made less than the inner periphery of the case, to provide
a passage for the water) into the second compartment of the case, from which
it will escape at the discharge pipe.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alfred Vincent Newton in the Great Seal Patent Office on
the 6th November 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALFRED
VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the County.
of Middlesex, Mechanical Draughtsman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighth day of May, in the year of our Lord One
thousand eight hundred and fifty-six, in the nineteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Alfred Vincent Newton, Her special license that I, the said Alfred Vincent
Newton, my executors, administrators, and assigns, or such others as I, the
said Alfred Vincent Newton, 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, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "AN IMPROVED
CONSTRUCTION OF ROTARY PUMP," being a communication from abroad, upon the
condition (amongst others) that I, the said Alfred Vincent Newton, by an
instrument in writing under my 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 I, the said Alfred Vincent Newton, do hereby declare
the nature of the 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 had to the Drawings hereunto annexed, and to the
letters and figures marked thereon (that is to say):-

page_text: This Invention consists in the combination of an angular arm or bucket, so
made as to press the water outward from the shaft, with a spiral partition or
partitions in the suction pipe, which gives the water an initiatory rotation
in the direction contrary to that in which the arms or buckets revolve; also
in the arrangement of parts, herein-after described, by which the water is
discharged around a partition in the chamber of the pump, as herein-after
set forth.
In the annexed Drawings, Fig. 1 is a sectional elevation, taken through the
middle of the improved pump; Fig. 2 is an end elevation of the same;
Fig. 3 is a detached view of the partition which divides the chamber of the
pump, and shewing also the form of the buckets; Fig. 4 exhibits the spiral in
the suction pipe.
:
A is the suction pipe, the sides of which are curved outward at the inner
end to facilitate the entrance to the water. It is fitted with a three-winged
spiral partition B, which gives the water, as it enters the chamber C, a rotary
motion. This spiral is stationary, being securely attached to the suction pipe,
with tap bolts or some other substantial device. The twist of this spiral is
easy, the twist gradually increasing from the point where the edges of the
spiral meet the water to an angle of about thirty degrees to the axis of the
spiral. The arms or buckets D are attached to the pump shaft E, to which
motion is communicated by power applied to the pulley F. The arms D
revolve in the opposite direction to that in which the water revolves as it
enters the chamber C, and are curved or scrolled, so as to present a constant
angle of about forty-five degrees to a radial line drawn through any point of its
working length, the angle being measured at the point of intersection. The
face of each of these buckets is parallel to the shaft at the inner end, but at
the outer end the edge nearest the suction pipe is thrown forward, so far as to
present an angle of about forty-five degrees to a line drawn parallel to the
shaft, this angle gradually diminishing towards the inner end of the buckets.
I is a plate, which is cast in one piece with the arms D, and divides the
chamber C into two parts, leaving, however, an opening around the periphery
for the water to pass. This permits of the water being discharged at the centre
or periphery of the chamber with equal facility, and promotes and facilitates
the discharge by allowing the water to pass out from the buckets all around
the periphery, instead of requiring it to be carried to a particular point in the
circuit. It also strengthens the arms and counteracts the pressure of the
shaft upon the footstep L and the collar M, caused by the twist or curve of
the buckets.
The object of giving the water as it enters the chamber C a rotation in the

page_text: opposite direction to the rotation of the arms, is to make the action of the
buckets in forcing the water outward more complete and efficient, thereby
reducing the number of revolutions necessary to efficient operation, and con-
suming much less power in creating a useless rotation of the water in the
chamber C. The water passes around the edge of the plate I into that
division of the chamber which is farthest from the suction pipe, and is dis-
charged through the discharge pipe J. The shaft is kept from being drawn
towards the suction pipe by the adjusting footstep screw L and the collar M.
N is the bed plate to which the pump is bolted; and O is a bracket to support
the end of the shaft.
Having now described the nature and object of this Invention of An
Improved Construction of Rotary Pump," as communicated to me by my
foreign correspondent, I wish it to be understood that under the above in part
recited Letters Patent, I claim the combination of the arms D constructed in
any equivalent manner with the spiral partition B; and also dividing the
chamber C, and reducing the pressure upon the footstep by the plate I, or its
equivalent, substantially as herein set forth.
In witness whereof, I, the said Alfred Vincent Newton, have hereunto
set my hand and seal, the Twenty-third day of October, in the year of
our Lord One thousand eight hundred and fifty-six.
Witness,
J. W. MOFFATT,
66, Chancery Lane.
A. V. NEWTON. (L.S.)