Improvements in Condensing Arrangements for Steam Cylinders and for like purposes.
Year: 1893

page_text: Date of Application, 10th Apr., 1893
Complete Specification Left. 22nd Dec., 1893-Accepted, 3rd Feb., 1894
PROVISIONAL SPECIFICATION.
Improvements in Condensing Arrangements for Steam Cylinders
and for like purposes.
I, GEORGE BENNETT, of 66 Holte Road, Aston Park, in the County of
Warwick, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the manner in which I construct and arrange appliances
for attachment to the cylinders of steam engines, steam pumps and other cylinders
whereby I am enabled to utilize the exhaust steam instead of discharging it to
atmosphere.
In carrying my invention into effect when applying my improved fittings to the
cylinders of a steam pump such as a "Worthington" or other direct acting type
of pump, I lead the exhaust steam from the ordinary outlet branch of the cylinder
to a cock or two way valve having a connection opening to the atmosphere on the
one side and opening to a conduct pipe on the other side, the object of the cock
or valve being to allow the steam to pass freely to the atmosphere or to allow it
to pass down the conduct pipe. At the lower end of the conduct pipe I make a
connection by meaus preferably of a branch or T piece with another cock or
valve attached to or connected with the rising main or water delivery pipe, the
object of the cock being to allow a small portion of this water to pass in the
form of a jet from the delivery pipe to meet the egressing current of exhaust
steam as it passes down the conduct pipe. Below the jet cock connection on the
conduct pipe I carry a reduced pipe through which the combined steam and
water or the condensed steam and water may pass until it is discharged into a
branch leading into the suction pipe which supplies the pump. Between the
suction pipe and the condensed steam pipe I place a cock or other ordinary valve
so as to permit the suction to work without drawing from the conduct pipe when
the pump
is first started to work.
I arrange my valves or taps to suit any particular type of pump to which it
may be desired to attach my improved jet condensing arrangement and I modify
the form of pipes and fittings so that any particular discharge pipe connection can
be coupled up to by means of an ordinary pipe or cock.
When applying my improved jet condensing arrangement to ordinary steam
cylinders I sometimes dispense with the rising delivery main and utilize water from
a tank arranged overhead for condensing the steam and discharging the hot water
thus obtained into a boiler supply or other feed main.
I do not limit the application of my invention to any particular form of steam
cylinders or any type of pump, but I arrange the fittings and parts with their
connections to suit any ordinary or special form of steam cylinder similarly to the
manner hereinbefore described when applied to a steam pump cylinder.
Dated this 8th day of Anril 1893.

page_text: improvements in Condensing Arrangements for Steam Cylinders
and for like-purposes.
I, GEORGE BENNETT, of 66 Holte Road, Aston Park, in the County of
Warwick, 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 relates to the manner in which I construct and arrange appliances
for attachment to the cylinders of steam engines, steam pumps, and other cylinders;
whereby I am enabled to utilize the exhaust steam instead of discharging it to
atmosphere.
.
In order that my invention and the method of carrying the same into effect may
be the more readily understood I append hereunto an explanatory drawing to be
hereinafter referred to, showing the application of my invention to the steam
cylinder of a boiler feed pump. I lead the exhaust steam from the ordinary outlet
branch of the cylinder A to a cock such as B or to a two way valve having a
connection opening to the atmosphere on the one side and opening to a conduct
pipe C on the other side, the object of the cock or valve being to allow the steam
to pass freely to the atmosphere or to allow it to pass down the conduct pipe.
At the lower cud of the conduct pipe I make a connection by means preferably
of a branch or T piece such as D with another cock or valve E attached to
or connected with the rising main or water delivery pipe, the object of the cock
being to allow a small portion of this water to pass in the form of a jet from
the delivery pipe to meet the egressing current of exhaust steam as it passes
down the conduct pipe. Below the jet cock connection on the conduct pipe I
carry a reduced pipe such as F through which the combined steam and water
or the condensed steam and water may pass until it is discharged into a branch
leading into the suction pipe which supplies the pump. Between. the suction
pipe and the condensed steam pipe I place a cock such as G or other ordinary
valve so as to permit the suction to work without drawing from the conduct
pipe C when the pump is first started to work.
I arrange my valves or taps to suit any particular type of pump to which it
may be desired to attach my improved jet condensing arrangement and I modify
the form of pipes and fittings so that any particular discharge pipe connection
can be coupled up to by means of an ordinary pipe or cock.
When applying my improved condensing arrangements to a pump of the type
shown in the accompanying illustration, I preferably obtain the water jet by con-
necting the tee piece D with the hollow pillar or column H, such column being in
connection with the pump delivery pipe or rising main J. In the same manner
I preferably connect the discharge pipe F with suction chamber L into which
flows the water from the suction pipe entering at K. The connection with. the
rising main or delivery main may, however, be made at any position above, or-on
the pressure side of the delivery valves, and similarly the connection with the
suction pipe may be made at the most convenient position.
On first starting the steam pump I close the cocks E and G and open the cock B,
thus allowing the exhaust steam from the cylinder A to be discharged to
atmosphere, and shutting off: all connection between the condensing apparatus and
the water delivery and suction pipes of the pump.
When the pump has been working under these conditions a sufficient time to fill
the water suction and delivery mains and connections I open the cocks E and G
and close the cock B, thus compelling the exhaust steam from the cylinder A to
descend the pipe C and meet the jet of water issuing through the cock E. The
stream of water and steam are thus caused to intermingle with the result that the

page_text: steam is condensed and flows with the condensing water into the suction chamber,
imparting heat to the water admitted to the chamber by the suction inlet K. In
this manner I return to the boiler the greater part of the heat withdrawn by the
steam.required for operating the boiler feed pump.
When applying my improved jet condensing arrangement to ordinary steam
cylinders I sometimes dispense with the rising delivery main and utilize water
from a tank arranged overhead, or from some other source of supply, for condensing
the steam, and discharge the hot water thus obtained into a boiler supply or other
feed main.
I do not limit the application of my invention to any particular form of steam
cylinders or any type of pump, but I arrange the fittings and parts with their
connections to suit any ordinary or special form of steam cylinder similarly to the
manner hereinbefore described when applied to a steam pump cylinder.
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 :-
1. The method of condensing the exhaust steam from the cylinder of a pumping
or other engine, and of heating a boiler feed or other water supply substantially
as herein before described and as illustrated in the accompanying drawing.
2. The combination of a steam cylinder exhaust pipe C, and a water jet valve
such as E connected with a pump water column H, with a discharge pipe F and
valve such as G leading to the suction chamber L of the pump, substantially as
and for the purposes hereinbefore described and illustrated in the accompanying
drawing.
Dated this 21st day of December 1893.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.