Year: 1887

page_text: Date of Application, 18th June, 1887
Complete Left, 11th Jan., 1888
Complete Accepted, 17th Feb., 1888
I JAMES HEMINGTON of Chatteris in the County of Cambridge Land Surveyor do
hereby declare the nature of my said Invention to be as follows:-
My Invention has for its object to provide a pump which is simple and efficient in
working and which can have its working parts situated at or near the bottom of a
well or the like by an arrangement which does away with a suction pipe and stuffing
boxes and simplifies the pump generally. According to my Invention I provide a
pump barrel open at its lower end and supported upon any suitable foundation plate
or other support. To the top of this barrel is secured the plate in which is the outlet
or retaining valve and above that is the delivery pipe leading to the place where the
fluid pumped is to be discharged. The plunger of the pump is hollow and carries the
inlet valve which is a lift valve which opens upwards as also does the outlet or retaining
valve on the barrel, they preferably being mounted upon pins on which they slide in
opening and closing. The plunger is connected at its under side by a suitable
projecting part to a lever centred to a bracket and to a connecting rod which is
connected to a rod extending upwards to the surface of the ground or to any con-
venient position for operating by means of a hand lever or other suitable device. As
the plunger is worked during its descent the fluid in the barrel beneath it enters the
space in the barrel above the plunger-the inlet valve thereon opening to allow of this.
When the plunger rises the said inlet valve is closed and the outlet or retaining valve
above opens and allows the fluid to pass into the delivery pipe. The pump may be
made double acting by duplicating the barrel and plunger and leading their discharges
into one delivery pipe the plungers being operated by a double arrangement of con-
necting rods from above connected to a double acting lever beneath the pump barrels
for operating each of them.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.,
Agents.

page_text: Improvements in and Connected with Pumps.
I JAMES HEMINGTON of Chatteris in the County of Cambridge Land Surveyor 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 has for its object to provide a pump which is simple and efficient in
working and which can have its working parts situated at or near the bottom of a
well or the like by an arrangement which does away with a suction pipe and stuffing
boxes and simplifies the pump generally. According to my Invention I provide a
pump barrel open at its lower or inlet end and supported upon any suitable foundation
plate or other support which may constitute an anchorage. At the top of this barrel
is situated the outlet or retaining valve and above that is the delivery pipe leading to
the place where the fluid pumped is to be discharged. The piston or plunger of the
pump is hollow and carries the inlet valve and is connected to a lever operated by a
rod extending upwards to the surface of the ground or to any convenient position for
operating by means of a hand lever or other suitable device. As the plunger is
worked fluid enters the barrel by the inlet valve in the piston or plunger and when
the pistons or plungers stroke is reversed the said inlet valve is closed and the outlet
or retaining valve opens and allows the fluid to pass into the delivery pipe. The pump
may be made double acting by duplicating the barrel and piston or plunger and leading
their discharges into one delivery pipe the pistons or plungers being operated by a
connecting rod or connecting rods from above connected to a double acting lever for
operating each of the pistons or plungers. The valves need not be leathered unless
preferred.
And in order that my said Invention may be fully understood I shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
figures on the annexed sheet of drawings the same letters of reference indicating
corresponding parts in all the figures.
Figure 1 is a vertical section of a single pump constructed according to my
Invention.
C2
A is the pump barrel open at its lower end and having at its upper end the plate b
with openings therein covered by the retaining valve B. The piston or plunger C
has openings through it which are covered by the inlet valve D. The valves rise
and fall on the guide pins 63 and d. Above the valve B is the air vessel E and
the entrance to the rising main F. The piston or plunger C has arms c to which a
lever H is connected by the rod G, the said lever H being centred at h to the bracket I
secured to the pump barrel. J is a rod connected to the lever H and extending up
to a suitable position for operation. The pump barrel is shown as being bolted to a
support K for the support of the pump at the bottom of the well or place from which
the water or other liquid is to be pumped. On the rod J being reciprocated by hand
or power the lever H vibrates on its centre h and the piston or plunger C moves up

page_text: and down in the barrel A. As it ascends the liquid in the barrel above the piston
or plunger is forced through the retaining valve B and into the air vessel and rising
main and as the piston or plunger descends the inlet valve opens for the admission of
liquid to above the piston or plunger the retaining valve being then closed.
Figure 2 is a vertical section of a double pump which consists of a duplication of
the parts shewn in Figure 1 as far as the pump itself is concerned and corresponding
parts are marked with the same letters. The outlets from both the cylinders A A
lead by the branches A2 A2 into an air vessel E and rising main F common to both.
The lever H is extended and is centred at h to the bracket I secured to the support K
between the pump barrels. Its ends are connected each to a rod J extending to the
place where the motive power applied. The rods G of the two pistons or plungers
are each attached to the lever H as shewn. There may of course be but one operating
rod J if desired.
Having now described and particularly ascertained the nature of this Inven-
tion and in what manner the same is to be performed I declare that what
I claim is:
First: A pump having an open bottom or inlet end and a piston or plunger
carrying the inlet valve the said piston or plunger being reciprocated by means
substantially as herein before described.
Second: The arrangement and combination of parts constituting the pump sub-
stantially as herein before described and illustrated in Figure 1 of the accompanying
drawings.
Third: The arrangement and combination of parts constituting the pump sub-
stantially as hereinbefore described and illustrated in Figure 2 of the accompanying
drawings.
731111"
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1
2 T
1000