Improvements in and connected with Engine Condensers.
Year: 1897

page_text: Date of Application, 3rd Apr.,
1897
Complete Specification Left, 3rd Jan., 1898--Accepted, 5th Mar., 1898
PROVISIONAL SPECIFICATION.
Improvements in and connected with Engine Condensers.
I, THOMAS CASSIENET PALMER, of the Firm of W. J. Fraser & Co., 98, Com-
mercial Road East, in the County of London, Engineer, do hereby declare the
nature of this invention to be as follows:-
-
This invention relates to improvements in and connected with condensers
whereby the heat of condensation is utilized for heating the air supply to the
furnace.
According to my invention I condense steam by causing it to come into contact
with a series of tubes through which a current of air is caused to circulate, the said
tubes being in communication with the furnace.
In carrying out my invention I advantageously enclose the air-tubes in a casing,
the said tubes being in communication by a suitable passage with the closed ash-
pit of the boiler which generates the steam. To ensure an efficient air circulation
through the tubes I arrange a fan in the flue or chimney of the boiler.
With this arrangement it will be obvious that in addition to condensing the
steam the air flowing through the air tubes is heated by the condensation of the
steam on the said tubes so that the boiler furnace is supplied with heated air, thus
ensuring the better and more economical combustion of the fuel than is the case
with cold air and it will also be obvious that with my arrangement no complicated
apparatus is necessary, to prevent back draught on the opening of the fire and ash-
pit doors.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and connected with Engine Condensers.
I, THOMAS CASSIENET PALMER, of the Firm of W. J. Fraser & Co., 98, Com-
mercial Road East, in the County of London, 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 improvements in and connected with condensers
whereby the heat of condensation is utilized for heating the air supply to the
furnace.
According to my invention I condense steam by causing it to come into contact
with a series of tubes through which a current of air is caused to circulate, the said
tubes being in communication with the furnace.

page_text: In carrying out my invention I advantageously enclose the air-tubes in a casing
the said tubes being in communication by a suitable passage with the closed ash-
pit of the boiler which generates the steam. To ensure an efficient air circulation
through the tubes I arrange a fan in the flue or chimney of the boiler.
To enable my invention to be fully understood I will describe it by reference
to the accompanying drawing, which illustrates diagrammatically the combination
my air-condenser with a steam engine and boiler.
of
a is the boiler and 6 the ash-pit thereof; c is the steam engine and d the steam
pipe conveying steam from the boiler to the valve chest of the engine.
My air-condenser, is preferably formed of a metal cylinder e having tube
plates f, f fitted in the ends thereof to receive tubes g, g. One of the tube
plates is open to the atmosphere so that air can enter the tubes fitted therein
whilst the other plate opens into a passage h in communication with the ash-
pit of the boiler furnace.
i is the fan arranged in the chimney of the boiler so as to induce a draught
of air through the tubes g, g of the condenser in the direction of the arrows and
into the ash-pit 6 of the boiler. is a pipe connecting the steam engine exhaust
with the condenser e and k is a tank connected by a pipe k¹ with the condenser
for receiving the condensed steam. 7 is a valve to relieve the pressure in the con-
denser should it become too great. The said valve is connected with the boiler
chimney.
With this arrangement it will be obvious that the cool air flowing through the
tubes g, will condense the exhaust steam discharged into the said condenser
through the pipe j, the water of condensation flowing away through the pipe k¹
into the tank and the heat extracted in condensing the steam heating the cold
air so that the furnace of the boiler is supplied with heated air. By these means
I ensure the better and more economical combustion of the fuel than is the case
with cold air and it will also be obvious that with my arrangement no com-
plicated apparatus is necessary, to prevent back draught on the opening of the fire
and ash-pit doors.
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 combination with a steam generator-and steam engine of a condenser
comprising a reciver for the exhaust steam and a number of tubes fitted in the
said receiver through which air is drawn into the closed ash-pit of the steam
generator furnace, substantially in the manner and for the purposes hereinbefore
described.
2. The combination and arrangement of parts forming the improvements con-
nected with engine-condensers hereinbefore described and illustrated in the
accompanying drawings.
Dated the 3rd day of January 1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.