Improvements in Pumps.
Year: 1899

page_text: Date of Application, 13th Oct., 1899
Complete Specification Left, 13th Aug., 1900-Accepted, 15th Sept., 1900
Improvements in Pumps.
I, ROBERT MC'GREGOR, Nautical Instrument Maker, of 37, Clyde Place, in
the County of the City of Glasgow, North Britain, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improvements in pumps and the object is to obtain a
continuous delivery of water.
In carrying out my invention provide a pump case divided into two com-
partments, one of which is connected to the supply, and the other to the delivery
pipe. In the partition between the compartments there are two or more cylinders
with pump pistons arranged so that one is always drawing water from the
supply and delivering it to the delivery pipe and thus a continuous flow is
obtained.
Dated this 12th day of October 1899
(Sgd.)
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow,
Applicant's Patent Agents."
I, ROBERT MCGREGOR, Nautical Instrument Maker, of 37, Clyde Place, in
the County of the City of Glasgow, North Britain, do hereby declare the nature
of this invention and in what manner the same is to be performed to be particu-
larly described and ascertained in and by the following statement:-
This invention relates to improvements in pumps and the object is to obtain a
continuous delivery of water.
In carrying out my invention, I provide a pump case divided into two com-
partments, one of which is connected to the supply, and the other to the delivery
pipe. In the partition between the compartments there are two or more cylinders
with pump pistons arranged so that one is always drawing water from the
supply and delivering it to the delivery pipe and thus a continuous flow is
obtained.
In the drawings hereunto annexed Figure 1 is a front elevation of a pump
embodying my invention, and
Figure 2 is a similar view with the cover removed, and the cylinders, pistons,
and valves, hereinafter more fully referred to, illustrated in section.
In one of its simplest forms the pump consists of a casing A. of box formation
[Price 8d.1

page_text: and somewhat square in section. The interior of the casing A. is divided, by
a transverse partition plate B, into two compartments C and D. The partition
plate B aforesaid supports two cylinders E and F, whose lower ends communicate
with the compartment D, from which the supply of liquid to be pumped is
drawn, whilst the upper ends of the said cylinders E and F communicate and
discharge into compartment C, into which, and from which, the liquid to be
pumped is delivered.
The pump consists of two pistons E' and F¹, and valves G and H, which slide
up and down on the spindles g and h. The check valves I and J in the lower
casing of the cylinders E and I rise and fall similarly on the spindles i and j.
In Figure 2 it will be seen that the pistons E and F are nearly at the top
and bottom of their stroke respectively. The said two pistons are raised and
lowered alternately by means of a rocking bar or lever K, which is actuated
by a hand lever L, mounted on a transverse shaft L', but may be actuated by
other motive power. The pistons E and F are connected to the rocking shaft K
by means of the bridge pieces M and M, and links. N and N¹.
The liquid to be pumped enters the lower compartment D by the inlet O and
is delivered from the upper compartment by the discharge outlet P.
In lieu of the rocking shaft K as aforesaid, the two pistons may be worked by
cranks and shafts operating in an opposite plane; and in lieu of a pair of
cylinders three or more may be used."
The casing of the pump is hinged at Q to a table or platform R, in order that,
when pumping has ceased, any liquid remaining in the interior of the pump may
be drained by the valve S and stop cock T, when the pump is turned down.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
A pump divided into two compartments, one of which is connected to the
supply and the other to the delivery pipe, a pair or more cylinders mounted in
a partition plate between the said compartments and so arranged that one is
always drawing liquid from the supply and delivering it in a continuous dis-
charge, substantially in the manner described and shown on the drawings.
Dated this 9th day of August 1900.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow,
Applicant's Patent Agents.