Improvements in Steam Boilers, Generators, or Feed Water Heaters.
Year: 1890

page_text: Date of Application, 26th Aug.. 1890
Complete Specification Left, 26th May, 1891-Accepted, 27th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in Steam Boilers, Generators, or Feed Water
Heaters.
A communication to me from abroad by ERNST WILLMANN, of Dortmund, in the
Empire of Germany.
I, EDMUND EDWARDS, of the firm of Edwards and Co., Patent Agents and
Engineers, of 35, Southampton Buildings, Chancery Lane, in the County of
Middlesex, do hereby declare the nature of this invention to be as follows:-
This invention has for its object economy in the masonry used for steam boilers,
generators, or feed water heaters, especially water-tube boilers, and consists in the
arrangement of systems of tubes surrounded by firebrick or other material refractory
to heat for the purpose of heating feed water or generating steam.
By this means the application of water-tube boilers to steam vessels, and also
as stationary boilers, can be effected with economy of space and of the heat absorbed
by the masonry.
For this purpose upon each side of the boiler or of the flat chamber with which
the tubes of a water-tube boiler communicate, whether such tubes are closed at one
end or communicate with chambers at each end, narrow chambers of wrought iron
or other metal, or cast iron caps connected by junction pieces, are arranged, which
are furnished with tubes like the tube chambers of the boiler. . These chambers may
be extended downward so as to form supports for the boiler.
Round the tubes of these side chambers fire bricks or other suitable refractory
material are fitted close round the tubes either entirely or partly enclosing all the
latter. The tubes so arranged in the firebricks or refractory material form
together the side walls of the boiler or furnace, and at the same time serve as a
feed water heater, the water before its entrance into the boiler proper being forced
through these side chambers and tubes and in this way the heat absorbed by the
firebrick which would otherwise be lost is utilized.
At the same time the firebrick or other refractory material is prevented from
being burned and melted, as it is cooled by the passage of the water through
the tubes.
The invention is applicable to boilers, steam generators, and feed water heaters
of different kinds, and especially to water-tube boilers of the different well known
constructions.
COMPLETE SPECIFICATION.
Improvements in Steam Boilers, Generators, or Feed Water
Heaters.
A communication to me from ERNST WILLMANN, of Dortmund, in the Empire of
Germany.
I, EDMUND EDWARDS, of the firm of Edwards and Co., Patent Agents, and
Engineers, of 35, Southampton Buildings, Chancery Lane in the County of
Middlesex, 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, and accompanying drawing, that is to say :—
This invention has for its object economy in the masonry used for steam boilers,
Umina 627

page_text: heat generators, or feed water heaters, especially water-tube boilers, and consists in
the arrangement of systems of tubes surrounded by fire-brick or other material
refractory to heat for the purpose of heating feed water or generating steam.
By this means the application of water-tube boilers to steam vessels, and also as
stationary boilers, can be effected with economy of space and of the heat absorbed
by the masonry and without the rapid burning away of the latter.
The accompanying drawing is in illustration of the invention.
Upon each side of the boiler or of the flat chamber a with which the tubes of a
water-tube boiler communicate, whether such tubes are closed at one end, as shewn
in Figures 1 and 4, or communicate with chambers at each end, as shown in
Figure 2, narrow chambers b, b, of wrought iron or other metal, or cast iron caps
connected by junction pieces, are arranged, which are furnished with tubes like the
tube chambers of the boiler. The chambers may be extended downward so as to
form supports for the boiler, as shewn in Figures 5 and 6.
Round the tubes of these side chambers fire-bricks or other suitable refractory
material are fitted close round the tubes (as illustrated in Figure 3) either entirely
or partly enclosing all the latter. The tubes so arranged in the fire bricks or
refractory material form together the side walls of the boiler or furnace, and at the
same time serve as a feed water heater, the water before its entrance into the boiler
proper being forced through these side chambers and tubes, and in this way the heat
absorbed by the fire-brick which would otherwise be lost is utilized.
At the same time the fire brick or other refractory material is prevented from
being burned and melted, as it is cooled by the passage of the water through
the tubes.
The invention is applicable to boilers, steam generators, and feed-water heaters
of different kinds, and especially to water-tube boilers of the different well known
constructions.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The arrangement of side walls, which serve as a feed water heater or a part of a
steam or heat generator, in steam boilers of all kinds, or heating apparatus,
especially in water tube boilers of different forms, instead of the ordinary masonry,
and consisting of:
(1) The arrangement of side water chambers, in direct or indirect combination
with the ordinary boiler or heating apparatus,
(2) The heating tubes contained therein, in which water circulates,
(3) The filling up of the space between these heating tubes wholly or partly
with masonry, or the like material, so shaped and fixed that it cannot fall or shake
out, all substantially as described and illustrated.
Dated this 26th day of May 1891.
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.