Improvements in Apparatus for Supplying Buildings with Heated or Cooled Air or for Cooling Water and for like Purposes.
Year: 1889

page_text: Date of Application, 11th Dec., 1889-Accepted, 18th Jan., 1890
COMPLETE SPECIFICATION.
Improvements in Apparatus for Supplying Buildings with Heated
or Cooled Air or for Cooling Water and for like Purposes.
I, JOSEPH WRIGHT of 16 Great George Street in the City of Westminster,
Mechanical 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 :-
The object of my Invention is to supply an efficient and economical apparatus for
supplying heated or cooled air to buildings or for cooling water or for analogous
uses.
6.
According to my Invention I employ a heating or cooling chamber (or several
such chambers) which is or are provided with a number of passages or tubes, on
one side of which passes the fluid which is to be used as the medium for heating or
cooling the air, or which is to be cooled by the air which air passes on the other side
thereof after the manner of a surface condenser. Air is forced through this apparatus
by means of induction or of a fan or equivalent air forcing device and the medium
which passes on the other side of the tubes is preferably water which has been heated
in a water heater, such for example as that known as the Wright Patent improved
Berryman water heater" or as the "
Wright Patent Surface Condenser" in which
the heating medium may be live steam or exhaust steam from engines or from the
cylinders of a pump which is used to cause a circulation of the heated water from
the Wright Patent Improved Berryman water heater or the Wright Patent surface
condenser to the chamber aforesaid. There may also be used the exhaust steam
from Engines which drive the fan or air forcing device. In case the air is to be
cooled instead of being heated, ice may be placed in the chamber through which
the fan passes the air.
The accompanying Drawing represents an example of an apparatus constructed in
accordance with my Invention for heating air by heat derived from exhaust steam
as hereinbefore mentioned from which its analogous applications will also be under-
stood. Figure 1 is an elevation and Figure 2 a plan. A is the chamber through
which air passes on one side and water on the other side of the tubes therein the
said chamber having therein a false bottoin a from which to the top plate of the
chamber extend the said tubes marked a through which air is forced as required by
means of a fan B actuated by the two small steam cylinders-C.-G.-The space sur-
rounding the tubes a² is supplied with water heated in the water heater D in the
example shewn by exhaust steam supplied to the heater tubes from the cylinders e of
the pump E and from the cylinders (which drive the fan. The water heater D is
connected to the space of the chamber A surrounding the tubes a² by a pipe F above
and pipes G below which latter pipes constitute the inlet and eduction pipes of the
pump E by which the circulation of the water is maintained through the heater D
and the chamber A the water being constantly heated by the heater D and returned
to the chamber A for heating the air or to be cooled by the air and then being
returned to the heater D to take up more heat and so on.
The pipes F and G where they enter the vessel A have perforations or nozzles
which are preferably opposite the spaces between each alternate row of tubes a² as
shewn clearly in Figure 2 as this gives a very efficient circulation around the rows
of tubes. The pipe at H is the steam supply pipe for the cylinders it having
branches and h³ provided with cocks h by which steam can be directed to the
pump cylinders the fan driving cylinder and to the space in the vessel A as required
the latter being to supply by condensed steam any loss of circulating water that
may occur.

page_text: .
The pipes a² can be secured in place of expanding their ends into tube plates as
usual in boilers but I prefer to pass their upper ends through holes as shewn at
Figure 3 surrounded by a projection or cup a³ and to pass an elastic washer or ring a*
over the end of the tube which washer or ring is received in this cup and makes
a tight joint. I may also provide openings in the top of the chamber A between
the tubes and close these openings with covers as shewn at Figure 4 which can
be removed for the insertion of ice when cool air is required the circulating pump
keeping up the circulation of the cooling medium the exhaust steam being taken away
through a bye pass instead of being passed into the vessel D.
In the drawings j and k are the exhaust steam pipes which conduct the exhaust
steam from the pump and fan cylinders to the water heater.
It will be understood that steam from any source may be passed into the vessel D
and that the apparatus may be used as desired for heating or cooling the air or for
simply cooling the circulating water by the air or for analogous purposes.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
First. The combination of-an air heating or water cooling chamber A with a
heater D and means for causing a circulation of heating or heated medium through
them substantially as hereinbefore described.
Second. The combination of an air heating or water cooling chamber A
heater D means for causing a circulation of heating or heated medium between
them and an air forcing device substantially as hereinbefore described.
Third. The combination of an air heating or water cooling chamber A water
:heater D circulating pump and an air forcing device the exhaust steam from the
Engine which drives the pump or from the Engine which drives the air forcing
device or from both Engines being led into the water heater for heating the
water therein to be circulated between it and the air heating or water cooling
. chamber A substantially as herein before described.
Fourth. The arrangement and combination of parts constituting an apparatus which
. can be used for supplying heated or cooled air as required or for cooling water
by air or for analogous purposes substantially as hereinbefore described and shewn
in the accompanying drawings.
Dated this 11th day of December 1889.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, Agents.