Improvements in Boilers for Heating Water, Steam, or Gaseous Fluids.
Year: 1896

page_text: Date of Application, 5th Feb., 1896
Complete Specification Left, 28th Oct., 1896-Accepted, 23rd Jan., 1897
PROVISIONAL SPECIFICATION.
Improvements in Boilers for Heating Water, Steam, or Gaseous
Fluids.
I, JOHN WAUGH, of Sunbridge Chambers, Bradford, in the County of York,
Civil Engineer, do hereby declare the nature of this invention communicated to me
from abroad by Hanz Bolze, a partner in the Firm of "Mannheimer Eisengiesserei
Gebruder Bolze" of Neckaraner, Uebergang, Mannheim, Baden, in the Empire of
Germany, to be as follows:-
This invention relates to certain improvements in boilers for heating water,
superheating steam or gaseous fluids, and has for its object the construction of a
tubular boiler or heater in such a manner that, the heating pipes do not come in
direct contact with the fire or hot gases and consequently damaged thereby; and
consists in encasing a coil of pipes in a cylindrical or other suitably shaped metal
casing forming the boiler. The encased coil of pipes are arranged with open ends,
one at the top, the other at the bottom forming an outlet and inlet respectively for
the water, steam or gas as the case may be. The boiler is supported upon a suitable
base and is provided with a fire grate at or near the point where the coil commences
at the bottom end, an opening at the top is provided for feeding the apparatus
with fuel.
The boiler may be fired in two ways. Firstly by fuel placed on the fire grate
in the ordinary manner, or from the top as before stated, the waste gases passing
out of a convenient opening at the top, or secondly the apparatus may be placed
in a flue in any convenient position whereby it is subjected to the highly heated
gases both internally and externally.
When firing the boiler internally only, I cover the outside of same with a
coating of non-conductive material, thereby preventing loss of heat by radiation.
By encasing the coil of pipes in the manner described, they are protected from
the fire enclosed within the circular or other casing so that, when the apparatus is
utilized for superheating steam or the like, the possibility of the pipes becoming
red hot is greatly minimised.
Deted this 4th den of Fahman 1806
COMPLETE SPECIFICATION.
Improvements in Boilers for Heating Water, Steam, or Gaseous
Fluids.
I, JOHN WAUGH, of Sunbridge Chambers, Bradford, in the County of York,
Civil Engineer, do hereby declare the nature of this invention communicated to
me from abroad by Hanz Bolze, a partner in the Firm of "Mannheimer
Eisengiesserei Gebruder Bolze" of Necharauer, Uebergang, Mannheim, Baden,
in the Empire of Germany, 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 certain improvements in boilers for heating water or
DJ

page_text: Fig. 2 is a vertical section through the boiler or heater cut at right angles to
that shown by Fig. 1.
Fig. 3 is a front elevation of the boiler or heater.
Fig. 4 a sectional plan through line e. f.
Fig. 5 a sectional plan through line g. h, and
Fig. 6 a plan.
The coil of pipes A. are encased with a covering of cast iron B. and terminates
with a branch A at the bottom and A' at the top, forming the inlet and outlet of
the pipe coil A.
The casement B. enclosing the pipe coil is supported upon a suitable base, and
provided with a fire grate C. at or near the bottom end of the pipe coil A, and an
opening through the top. of the casing provided with a cover plate E.
Fuel for heating purposes may be fed to the internal space of the boiler or
heater in two ways, first by placing it on the fire grate C. through the door
opening D. or in at the top through opening covered by plate E, the waste gases
escaping to the chimney through the opening F; or the water, steam or gaseous
fluids may be heated by placing the casement in a flue connecting a furnace or the
like to a chimney, in which case, the external and internal surfaces of the
casement B. are subjected to the action of the highly heated gases passing through
the said flue.
When the boiler or heater is fired or heated internally only, the exterior may be
covered with a mantle G. and the space between the mantle and casing filled with
asbestos or other non conducting material suitable for the purpose of preventing
radiation.
By enclosing the coil of pipes A. embedded in cast iron in the manner described,
they are protected from the direct action of the fire within the casing or heated
gases of the flue as the case may be, the cast iron covering protecting the pipe
coil A. from direct contact with the red hot fuel or highly heated gases, whilst at
the same time the heat transmitted to the pipe coil is more uniform, and not so
liable to damage the pipes as when the red hot fuel or the like acts direct on
the same, or when the gases used for heating contain noxious or destructive
elements.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A boiler or heater of cylindrical or other suitable form in which one or more
coils of pipes A. are enclosed by a casing of cast iron applied to the pipes
substantially in the manner and for the purpose as herein before set forth.
Dated this 27th.day of October 1896.
JOHN WAUGH.