Improvements in Centrifugal Pumps.
Year: 1889

page_text: Date of Application, 14th Feb., 1889
Complete Specification Left, 13th Nov., 1889-Accepted, 4th Jan., 1890
L.NOVIOLUNAL DIECIFICATION.
Improvements in Centrifugal Pumps.
I, WILLIAM BEAUMONT, of Chestergate Tool Works, Stockport in the County of
Cheshire, Machinist, do hereby declare the nature of this invention to be as
follows:-
My invention relates principally to improvements in centrifugal pumps with vertical
shafts and revolving in a horizontal plane, and has for its object to simplify and make
such pumps more durable and effective, and obviate the necessity of priming, as
heretofore has been the case.
To this end I suitably form the wheel of the centrifugal pump and.its shaft, prefer-
ably of brass, in one piece, in lieu of attaching the shaft to the wheel, whereby the
same will be much stronger and consequently less subject to repairs.
The vanes of the wheel I form radial to its axis, straight and flat, the inner ends
being slightly wider than the outer ends thereof.
The said wheel I fit into a flat shell formed in two halves, scroll-like so as to leave
a space between the periphery of the wheel and the wall of the shell, which widens.
gradually towards the outlet formed on the side thereof.
The upper half of this shell I provide or form with a long bush in which the axis
or shaft of the wheel revolves and which can be coupled up with the driving shaft as
may be required. The lower half of the shell I form with a hole concentric to the
axis of the wheel, and a flange around the same, which serves as an inlet, having a
bridge or bar formed therein, which receives a centre pin made vertically adjustable
on which the wheel rests, and is permitted to revolve.
For suction purposes the said flange is made longer so as to be coupled up with a
suction pipe, and permit of inserting a foot or lift valve if deemed necessary.
Dated this 13th day of February 1889.
F. BOSSHARDT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements in Centrifugal Pumps.
I, WILLIAM BEAUMONT, of Chestergate Tool Works, Stockport, in the County of
Cheshire, Machinist, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
My invention relates principally to improvements in centrifugal pumps with vertical
shafts and revolving in a horizontal plane, and has for its object to simplify and make
such pumps more durable and effective and obviate the necessity of priming, as hereto-
fore has been the case.
And in order that my invention may be more fully understood I have caused to be
appended hereunto one sheet of drawings marked with letters of reference indicating
like parts in the various figures.
Fig. 1 is a side view. Fig. 2 a plan of the bottom half of the shell. Fig. 3 a
vertical cross section and Fig. 4 a bottom view of the wheel of my improved centri-
fugal pump.
In carrying out my invention and referring to the figures generally, I suitably form
the wheel a of the centrifugal pump and its shaft b, preferably of brass, in one piece,
in lieu of attaching the shaft b to the wheel a, whereby the same will be much stronger
and consequently less subject to repairs. The vanes of the wheel a I form radial to
...

page_text: their axis, straight and flat, the inner ends being slightly wider than the outer ends
thereof.
The underside of the said vanes near the centre of the wheel a are formed with
recesses a¹ to facilitate the entrance of the liquid int the shell c, c¹.
The said wheel'a I fit into a flat shell formed in two halves c, c', scroll like so as to
leave a space between the periphery of the wheel a and the wall of the shell c, c' which
widens gradually towards the outlet d formed on the side thereof.
"
To the upper half c of this shell, in large sizes of pumps, I bolt and in small sizes I
cast a long bush or boss e, in which the axis or shaft of the wheel a revolves and
which can be coupled up with the driving shaft as may be required. The lower half c¹
of the shell I form with a hole f concentric to the axis of the wheel a, and a flange f¹
around the same, which serves as an inlet g, and increases the suction power of the
pump, so as to permit of emptying a well completely, which is essential in some cases,
for instance in tanner's wells. A bridge or bar h is formed, in the inlet g which
receives a screwed centre pin i made vertically adjustable therein, on which the wheel a
rests, and is permitted to revolve, so as to facilitate the proper adjustment of the
wheel a,
relative to the interior of the shell c, c'. For suction purposes, the said
flange f¹ is made longer, see dotted lines, Fig. 3, so as to be coupled up with a suction
pipe and permit of inserting a foot or lift valve l, if deemed necessary.
I may
remark that the described improvements may equally as well be adapted for centri-
fugal pumps with horizontal shafts and revolving in a vertical plane.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is
"In centrifugal pumps."
1st. The use of a wheel a having cast thereon the shaft b, substantially as and for
the purpose set forth.
2nd. The use of a wheel a, formed with radial and straight vanes, flat in section, in
combination with a flat shell c, c', substantially as and for the purpose set forth.
3rd. The shell part c¹ formed with a flange f¹ around the inlet g, substantially as
and for the purpose specified.
Datod this 6th day of Nov 1920