Improved Pumping Machinery as Applied to Deep Wells, Brine, Mine Drainage, or other Deep Lift and Force Pumps.
Year: 1887

page_text: Date of Application, 9th June, 1887. .
Complete Left, 7th Mar., 1888
Complete Accepted, 4th May, 1888
PROVISIONAL SPECIFICATION.
Improved Pumping Machinery as Applied to Deep Wells, Brine,
Mine Drainage, or other Deep Lift and Force Pumps.
WILLIAM ROBERT RENSHAW Engineer Union Foundry Kidsgrove Staffordshire
do hereby declare the nature of this invention to be as follows :-
:-
The object of this invention is to dispense with the usual Pump Rods or Spears,
and to use the Rising Main for the double purpose of conveying and lifting the
column of water or other liquid to be pumped, and at the same time making the liquid
flow in one direction only, thus avoiding shocks in changing current of same.
Attached to the Rising Main at the lower end I fix a hollow Ram of enlarged area,
the same fitted with delivery and retaining Valves, and working through a Stuffing.
Box into the Ram casing, the casing being fitted with Suction Valves and pipes. The
top of Main is fitted with a sliding pipe, and 'same is fitted with delivery_connection.
The Rising Main is worked direct or by the means of Tee Bobs or L Legs in the
usual way.

page_text: Figure 1, Sheets 1 and 2 shows a side elevation of a pair of rising mains and rams
constructed according to this invention.
Figure 2, Sheet 3, shows to an enlarged scale a section of the rising main.
and ram.
a is the rising main which is worked up and down in the same way as is usual with
pump rods or spears which, by this arrangement are dispensed with.. At the lower
end of the main is fixed the hollow ram b. fitted with the delivery and retaining
valve c. In the drawing only one valve is shown but two or more, one above the
other, may be employed for greater security.
The valve is fitted in a box between the rising main and the hollow ram a movable
cover c¹ being provided to give ready access to the valve. It is to obtain this ready
access that employ a hollow ram in place of a pump bucket and valve working
within a barrel.
The hollow ram works through the stuffing box d into the ram casing e the casing
being fitted with a suction valve f and suction pipe g. The top of the main is fitted
with a sliding pipe a¹ carrying a stuffing box at which works outside the fixed pipe a³
fitted with a delivery connection.

page_text: Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I would remark that I have before
proposed to dispense with the usual pump rods or spears and to use the rising main
for a double purpose and I therefore make no general claim to this arrangement, but
what I claim is :-
1. A hollow ram fixed at the lower end of the rising main and provided with a
delivery and retaining valve or valves between it and the rising main substantially as
described.
2. The combination of the rising main the hollow ram working through a stuffing
box into a casing, the valve or valves between the ram and the rising main and the
suction valve at the bottom of the ram casing substantially as described.
3. My improved pumping machinery as applied to deep wells, brine, mine or other
deep lift and force pumps substantially as described.