Improvements in Raising Steam under Pressure.
Year: 1897

page_text: Improvements in Raising Steam under Pressure.
EDWARD-FIDLER-of-27-Brompton Avenue. Sefton Park Liverpool in the County of
Lancaster Colliery Proprietor and CHARLES JOSEPH PRIEST of 72 Hartington Road
Sefton Park Liverpool aforesaid Solicitor do hereby declare the nature of this
invention to be as follows:
The novelty of this invention consists in departing from the present or usual
methods of producing steam under pressure and substituting therefor the injection or
forcing of heated compressed air into the water in a boiler. Such heated air cau
be produced by compression and may be further heated (if necessary) by passing the
same thro' tubes in, above or contiguous to a fire or furnace. The pipes or tubes
discharging such heated air into the water in the boiler may also be utilized for the
superheating of the steam by means of a portion of such tubing being raised above
the level of the water in the boiler and placed in such a position that the steam
produced will come in contact with such heated tubing.
What we claim as novel and original is the raising of steam under pressure by the
utilization of heat produced in the compression of air and, if necessary, the further
heating of the compressed air by passing the same through heated tubes or pipes,
and the injection or forcing of the same into the water in the boiler or into the tubes
connected therewith and also the super heating of the steam produced by the heated
air pipes in the boiler And for the better and more econonomical raising of steam
under pressure for marine land and other boilers And for the more economical use
of fuel in connection therewith.
1
1
T
1005
EDWARD FIDLER
CHAS. J. PRIEST.
Improvements in Raising Steam under Pressure."
EDWARD FIDLER of 27 Brompton Avenue Sefton Park Liverpool in the County
of Lancaster Colliery Proprietor and CHARLES JOSEPH PRIEST of 72 Hartington
Road Sefton Park Liverpool aforesaid Solicitor 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 novelty of this invention consists in departing from the present or usual
methods of producing Steam under pressure and substituting therefor the injection
or forcing of heated compressed air into the water in a boiler. Such air is not only

page_text: heated in & by the act of compression but is also further heated by passing the same
through tubes in, above, or contiguous to a fire or furnace. The pipes or tubes
discharging such heated air into the water in the boiler may also be utilized for the
superheating of the steam by means of a portion of such tubing being raised above
the level of the water in the boiler and placed in such a position that the steam
produced will come in contact with the heated tubing.
In order that our invention and the manner and method of working it may be
properly understood we hereunto append a sheet of Explanatory Drawings to be
hereinafter referred to.
In the following description 'the parts of the drawings are referred to by the letters
and figures marked thereon.
On the accompanying Sheet of drawings are respectively shewn a longitudinal
vertical section and a ground Plan of a boiler and furnace fitted with the apparatus
necessary for the purpose of carrying out our invention.
Fig: 1. is a sectional view of the Furnace and Tubing Stack containing the several
series of Tubes hereinafter described;-the same Stack also acts as a Chimney to the
furnace.
Fig. 2.'is a ground plan of the Tube Stack or Chimney shewing crossed tubes.
Fig: 1. A. is the first or top series of tubes, in the Tube Stack or Chimney, through
which the atmospheric air is drawn and in its passage absorbs the heat in such tubes
before being passed on to the Air Compressor (Fig: 3).
Fig: 1. B is the second series of tubes, in the Tube Stack or Chimney, through
which the atmospheric air is drawn and in its passage absorbs the heat therein before
being passed through the Fan (J.) and through the Ashpit (e) to the Furnace, (E.)
It will be seen that the air to both these series of tubes A and B is not forced but
drawn through the tubes by the Air compressor in the case of A and by the Fan in
the case of B.
.
Fig: 1. C. is the third series of tubes in the Tube Stack or Chimney and through
these the feed water for the boiler is forced by means of the Feed Pumps; (Fig: 9)
which water, in its passage through the tubes, absorbs portion of the heat, passing
from the Furnace up the Tube Stack or Chimney and is thus delivered to, the boiler
in a heated condition.
Fig: 1. D. is the fourth or lowest series of tubes, in the Tube Stack or Chimney,
and through these the compressed air, from the Compressor, is forced for the purpose
of being further heated before being forced into the water in the boiler.
Fig: 1. E is the furnace.
From the foregoing it will be seen that the object of our invention is to utilize, as
far as possible, the whole of the heat given offt by. the furnace and; passing up thro'
the Tube Stack or Chimney.
In connection with the above it will be seen that the following are the necessary
pipes and connections:-
(a) is the tube or pipe conveying the warm or heated air from the first or top series
of tubes to the air compresser.
(b) is the tube or pipe conveying the heated air from the second series of tubes to
the Fan.
(c) is the tube or pipe conveying the heated feed water from the third series of
tubes to the boiler or boilers.
(d) are the tubes or pipes conveying the heated compressed air from the fourth or
lowest series of tubes into the water in the boiler or boilers.
(e) is the ashpit.
(f) are the steam pipes for supplying 'steam to the' Air Compressor, Feed Pumps
and Fan.
(g) is the delivery pipe from the' Air Compressor to the fourth or lowest series
of Tubes.
(h) is the outlet Steam pipe from the boiler.
is the safety valve.
is the ground plan of Fan (J.).

page_text: (k) is the pipe conveying the feed water from the feed Pumps to the third series
of tubes.
Fig. 3. shews the Air Compressor which may be of any form or design (e) is the
Steam Cylinder (m) the Air Compresser.
Fig: 4. shews elevation of air compressor
Fig. 5. is the boiler shewing tubes and connections previously described.
Fig 6. is ground plan of boiler (Fig 5).
Fig 7. is plan of alternative boiler containing only one hot air delivery pipe.
Fig: 8. is ground plan of such alternative boiler (Fig. 7).
Fig: 9. is the feed pump or pumps.
Fig. 10. is ground plan of feed pumps.
Fig. 11. is a ground plan shewing Boiler, Air Compressor, Furnace, Fan and
Feed-pumps.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same may be performed, we declare that
what we claim is :-
1. The raising of steam under pressure by the utilization of the heat produced in
or by the compression of air; the further heating of such compressed air by the
passing of the same thro' the heated tubes or pipes and the injection or forcing of
the same into the water in a boiler or into the tubes connected therewith.
2. The superheating of the steam so produced by the heated air pipes in the
boiler.
3. The better and more economical raising of steam under pressure for marine,
land, and other purposes.
4. The more economical use of fuel in connection therewith.
Dated this fourth day of October 1897.