Improvements relating to Pumps Actuated by Compressed Air.
Year: 1897

page_text: Date of Application, 14th Aug., 1897
Complete Specification Left, 13th June, 1898-Accepted, 13th Aug., 1898
[Communicated from abroad by ISUNETA SHIN, Director, Ishikawajima Ship-
building and Engineering Company, Tokyo, Japan.]
Improvements relating to Pumps Actuated by Compressed Air.
I, HARRY SAMUEL BICKERTON BRINDLEY, of 64, Broomgrove Road, in the City
of Sheffield, do hereby declare the nature of this invention to be as follows:-
This invention consists of improvements relating to pumps actuated by com-
pressed air, my object being to effect an economy in the working of such engines
by the provision of a water jacket around the compressed air cylinders and the
circulation through the same of a stream of water from the pump delivery main.
In the application of my invention to a duplex compressed air pump for mine
or other service I provide a space or jacket around each air cylinder and I connect
each of such jackets by suitable piping with the pump delivery main. I thus
divert a portion of the cold water from the delivery main or from the water end
of the pump, and after causing it to circulate or pass through the cylinder jackets
I return it to the delivery main for discharge with the main body of the water
raised by the pump.
I employ suitable cocks or valves for regulating the quantity of water admitted
to the jackets.
By the application of my invention I am enabled to effect an economy of from
ten to twenty per cent. according to the temperature of the water passing through
the jackets.
י
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.
I, HARRY SAMUEL BICKERTON BRINDLEY, of 64, Broomgrove Road, in the City
of Sheffield, Engineer, 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:
This invention consists of improvements relating to pumps. actuated by com-
pressed air, my object being to effect an economy in the working of such engines

page_text: by the provision of a water jacket around the compressed air cylinders and the
circulation through the same of a stream of water from the pump delivery main.
In the application of my invention to a duplex compressed air pump for mine
or other service I provide a space or jacket around each air cylinder and I connect
each of such jackets by suitable piping with the pump delivery main. I thus
divert a portion of the cold water from the delivery main or from the water end
of the pump and after causing it to circulate or pass through the cylinder jackets
I return it to the delivery main for discharge with the main body of the water
raised by the pump.
I employ suitable cocks or valves for regulating the quantity of water admitted
to the jackets.
By the application of my invention I am enabled to effect an economy of from
ten to twenty per cent. according to the temperature of the water passing through
the jackets.
Figure 1 on the accompanying sheet of explanatory drawings is a side elevation
and Figure 2 an end elevation representing in outline a duplex compressed air
pump with my invention applied thereto.
The same reference letters are employed in both views to indicate the same
parts.
A A¹ represent the compressed air inlets (see Figure 2), and B the water
delivery main connection. Pipes as C on each side of the pump convey a portion
of the water from the delivery end to the water jackets surrounding the air
cylinders D D¹. The diverted water from the delivery end of the pump after
circulating through the cylinder jackets passes through the outlet cock E. The
pipes C are provided with regulating cocks as C¹.
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:
The improved pump actuated by compressed air, substantially as and for the
purpose described.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.