Improvements in or applicable to Pumps for Compressing or Exhausting Air or Gases.
Year: 1896

page_text: Date of Application, 15th Jan., 1896
Complete Specification Left, 14th Oct., 1896-Accepted, 14th Nov., 1896
VINTONAL
TON.
Improvements in or applicable to Pumps for Compressing or
Exhausting Air or Gases.
We ALFRED GEORGE BROWNING of 19 Duke Street, Moss Side, Manchester,
Gas Engineer, and WILLIAM WILD CHURCHILL of 15 Princess Street,
Manchester, Shipper, both in the County of Lancaster, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements upon or relating to the class of pump
for which Letters Patent No. 23271 dated 30th November 1894 were granted to
A. G. Browning the object of the present invention being to adapt the said class of
pumps to the purposes of compressing or exhausting air or gases.
In one modification of my invention for use as a compressor worked by hand the
receiver also forms the stand of the pump. From the top of this rises a stand pipe
at the top of which is fixed a T-piece with two elbows connecting the same to the
two inner fixed cylinders which hang down perpendicularly therefrom. The lower
ends of the outer or sliding cylinders are coupled by hose to the supply of gas to be
compressed as hereafter described.
The alternate sliding movement of the two cylinders is produced by a rocking
lever pivoted on the top of the T-piece before mentioned and connected by rods or
links to studs or pins fixed outside the cylinders.
A back pressure valve is placed at the junction of the stand pipe with the receiver,
and is kept in place by means of a spring until the air or gas has become compressed
sufficiently to keep it closed.
The bottom ends of the fixed cylinders are each provided with a valve opening
upwards, and also with a cup leather to keep the outer cylinder air and gas-tight.
The bottom ends of the outer or sliding cylinders are also each provided with a valve
opening only upwards, and either open to the air, or connected by flexible hose to
the supply of gas, as the case may be.
In some cases I propose to place the cylinders of the pump inside a vessel for
containing the gas to be compressed, in which case the fixed cylinders will be
connected to the stand pipe by a Y-shaped yoke, and the rods for connecting the
rocking lever to the outer or sliding cylinders will pass through holes in the top of
the vessel which are provided with stuffing boxes to keep them tight, the outlet to
the receiver or to the atmosphere being in the stand pipe above the vessel. The
latter may be connected to the source of supply of gas or air to be exhausted or
compressed by means of a main supply pipe.
Dated this 14th day of January 1896
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants.

page_text: +
Improvements in or applicable to Pumps for Compressing or
Exhausting Air or Gases.
We ALFRED GEORGE BROWNING, formerly of 19 Duke Street, Moss Side
Manchester, Gas Engineer, now of 5 Oakland Villa, Flixton, near Manchester, and
WILLIAM WILD CHURCHILL, of 15 Princess Street, Manchester, Shipper, both
in the County of Lancaster, 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 relates to improvements upon or relating to the class of pump
for which Letters Patent No. 23271 dated 30th November 1894, were granted
to A. G. Browning (one of the applicants) the object of the present invention being
to adapt the said class of pumps to the purposes of compressing or exhausting air
or gases.
The nature of our invention and the manner in which the same is to be
performed or carried into practical effect will be readily understood on reference
to the sheet of drawings hereunto annexed, and the following explanation
thereof.
Fig. 1 on the drawings is an elevation of one modification of our invention which
may be used as a compressor which may be worked by hand the receiver also
forming the stand of the pump.
Fig. 2 is an elevation of another modification of the same which may be used for
compressing or exhausting gas or air, and
Fig. 3 is a vertical section (on a larger scale) of the fixed cylinder and working
or sliding cylinder and valves.
Referring to Fig. 1 it will be seen that the receiver a also forms the stand of the
pump. From the top of this rises a stand pipe b at the top of which is fixed a
T-piece with two elbows c connecting the same to the two inner fixed cylinders
which hang down perpendicularly therefrom and upon which the outer or working
cylinders d slide. The lower ends of the outer or working cylinders d are coupled
by hose pipes at e to the supply of gas to be compressed as hereafter described.
The alternate sliding movement of the two cylinders d is produced by a rocking
lever pivotted on the top of the T-piece before mentioned and connected by rods
or links g to pins or studs h fixed outside the cylinders d.
A back-pressure valve is placed at the junction i of the stand pipe b with the
receiver a and is kept in place by means of a spring until the air or gas has
become sufficiently compressed to keep it closed. The bottom ends of the fixed
internal cylinders d¹ (see Fig. 3) are each provided with a valve k opening
upwards and also with a cup leather to keep the outer cylinder d air and
gas-tight. The bottom ends of the outer or working cylinders d are also
each provided with a valve m opening only upwards and either open to the
air, or connected by a flexible hose at e (Fig. 1) to the supply of gas as the case
may be.
In some cases I propose to place the cylinders of the pump inside a vessel o (as
shewn at Fig. 2) for containing the gas to be compressed, in which case the fixed
internal cylinders will be connected to the stand pipe b by a Y-shaped yoke p and
the rods g for connecting the rocking lever f to the outer or sliding cylinders d will
pass through holes in the top of the vessel o which are provided with stuffing boxes
at g to keep them tight, the outlet r to the receiver, or to the atmosphere, being in
the stand pipe b above the vessel o.
The latter may be connected to the source of supply of gas or air to be exhausted
or compressed by means of a main supply pipe at s.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that
what we claim is :-
The improvements in or applicable to pumps of the type or class herein before-
indicated whereby we are enabled to adapt such pumps to the purposes of compressing
or exhausting air or gases substantially as hereinbefore described and illustrated by
the drawings annexed.
Dated this 13th day of October 1896.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants..