Improvements in Double-acting Hydraulic Intensifiers.
Year: 1894

page_text: Date of Application, 7th Sept., 1894.
Complete Specification Left, 28th May, 1895-Accepted, 29th June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Double-acting Hydraulic Intensifiers.
I, GEORGE BELL SHARPLES, of Victoria Buildings, Manchester, in the County
of Lancaster, Engineer, do hereby, declare the nature of this invention to be as
follows:-
It consists in certain improvements on the doubleacting bydraulic intensifier
described in my Specifications to Patent No. 14,638, whereby L.am enabled to
render it more convenient to make and repair.
#L
I dispense with the outside cylindrical chamber and. fix, two large rams at a
suitable distance apart by means of, suitable standards, or guides, Within these
standards or guides and sliding alternately, over the lower and upper, rams is,
suitable cylindrical case, having two chambers of corresponding diameter.
Attached to the centre of each of the two chambers.is a smaller ram which slides
in a chamber of suitable diameter in one of the larger rams.
The action is similar to that of the intensifier, described in the, Specifications
above referred to.
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The low pressure water is admitted, above the lower large ram and below the
lower small ram, forcing the sliding cylindrical case up with a force equal to the
combined: area of both. rams, forcing the water, contained in the chamber, of
the upper small ram into the high pressure pipes at a greatly increased, pressure,
the water in the upper half of the sliding cylindrical-case escaping into low pressure
or waste pipes.
A suitable connection then closes the lower valves and at the, same time opens
other valves which admit the low pressure water for the down stroke below, the
upper large ram and above the upper small ram, again forcing the: cylindrical
sliding case back to its former position with, a. force equal, to, the, combined, area of
both rams, the water in the lower large chamber, ot, the cylindrical sliding case,
escaping into low pressure or waste pipes as before, and the water, in, the chamber
the high
of the lower small ram being forced at a greatly increased pressure into
pressure pipes.
71
Suitable stop or other valves are used as required..
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cambon 1001
COMPLETE SPECIFICATION.
Improvements in Double-acting Hydraulic Intensifiers.
I, GEORGE BELL SHARPLES, of Victoria Buildings, Manchester, in the County
of Lancaster, 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 :—
It consists in certain improvements on the doubleacting hydraulic intensifier
described in my Specifications to Patent No. 14,6383 whereby I am enabled to
render it more convenient to make and repair.

page_text: I dispense with the outside cylindrical chamber, and fix two large rams at a
suitable distance apart by means of suitable standards or guides. Within these
standards or guides, and. sliding alternately over the lower and upper rams is a
suitable cylindrical case having two chambers of corresponding diameter.
Attached to the centre of each of the two chambers is a smaller ram, which slides
in a chamber of suitable diameter in one of the larger rams
The action is similar to that of the intensifier described in the Specifications
above referred to.
Referring to the drawings sent herewith, in which Fig. 1.is.a side, and Fig. 2 a
cross section of my improved construction of apparatus. I fit the large rams a
and b at a suitable distance apart by means of suitable standards or guides c.
Within these guides c and sliding over rams a and b is a suitable cylindrical
cased having two chambers e and of corresponding diameter.
Attached to the centre of chambers e and fare two smaller rams and h, sliding
in corresponding chambers i and k in large rams a and b.
The action is as follows:-
:-
The low pressure water is admitted above large ram b and below small ram,h; by
channels n and o, forcing the cylindrical case d up with a force .equalite the
combined area of both rams and forcing the water contained in the chamber of
the small ram g into the high pressure pipe at a greatly increased pressure by
channel, the water in chamber e escaping by channel m into low pressure or waste
pipes.
A suitable connection worked by the motion of cylindrical case d then reverses
the motion by admitting the low pressure water below ram a. by channel m.and
above ramy by channel 1, forcing down the cylindrical cased into its former
position with a force equal to the combined area of both rams, and forcing the
water contained in the chamber i of the small ram into the high pressure pipes at
a greatly increased pressure by channel o, the water in chamber..f.escaping by
channel n'into low pressure or waste pipes, and so on.
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 combined apparatus, substantially as described and shown herein before and
in the accompanying drawings, for the purpose set forth.
Dated this 27th day of May 1895.
JOHN HENRY TOPHAM,.,
98A Market Street, Manchester, Agent to Applicant.