Improvements in or appertaining to Steam Generators and in the Method of Utilising the Heated Products therefrom
Year: 1892

page_text: Date of Application, 9th Jan., 1892
Complete Specification Left, 6th Sept., 1892-Accepted, 8th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to Steam Generators and in the
Method of Utilising the Heated Products therefrom.
A communication by CHRISTIAN WESTPHAL, of Berlin, in the Empire of
Germany.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E. of the Agency for Foreign
Patent Solicitors, 6 Lord Street, Liverpool, and 6 Bank Street, Manchester, both in
the County of Lancaster, & 323 High Holborn in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
In carrying the invention into effect, a serpentine pipe or coil is placed in the
furnace. In communication with this serpentine pipe is a boiler, in which a conical
tube is placed, its larger end opening into the furnace and the other end (where it
is provided with a cone or nozzle) into a second boiler or reservoir. A prolongation
of the serpentine pipe is placed in the axis of the conical tube, and it extends to
the nozzle aforesaid. By opening a suitable valve, the steam from the serpentine
or coil rushes through the nozzle, thus acting like an injector, the smoke or gases
of combustion being drawn, by the velocity of the steam, from the furnace into
the reservoir.
From the reservoir, a tube communicates with a second serpentine pipe or coil,
also placed in the furnace aforesaid. As soon as the mixture of steam and gases of
combustion has obtained a high pressure in the reservoir, a valve is opened and
the mixture passing under pressure is conveyed to the second coil where it is
heated again and then conducted to the steam engine or to other apparatus.
Thus it is seen that a furnace is obtained in which the fuel is completely utilised,
not only by heating the water in the boiler, but also by employing the burned
gases themselves for feeding a reservoir and serving instead of or in conjunction
with steam for driving engines or for other purposes.
Smoke is completely avoided and a chimney becomes unnecessary.
It is evident that, instead of a serpentine pipe or coil, another form or shape of
boiler may be employed for producing the steam. The water may, if desired, be
heated by a separate furnace, or the steam may be taken from another steam
boiler.
Dated this 8th day of January 1892,
WM. P. THOMPSON & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or appertaining to Steam Generators and in the
Method of Utilising the Heated Products therefrom.
A communication by CHRISTIAN WESTPHAL, of Berlin, in the Empire of
Germany.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool, and 6 Bank Street,
Manchester, both in the County of Lancaster, and 323 High Holborn in the
County of Middlesex, Civil 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 will be best understood by aid of the accompanying sheet of

page_text: "
illustrative drawings which shows a sectional elevation of an apparatus constructed
according to this invention.
In carrying the invention into effect, a serpentine pipe or coil a b is placed in
the furnace A. In communication with this serpentine pipe is the boiler B, in
which a conical tube C is placed, its larger end opening into the furnace A and
its other end (where it is provided with a cone or nozzle ef) into a second boiler
or reservoir D. The serpentine pipe or coil a b is prolonged at c d e and this part
is placed in the centre of the conical tube (and it extends to the nozzle aforesaid
as will be seen by the drawing. By opening a suitable valve y, the steam from
the serpentine or coil a b rushes through the nozzled part ef, thus acting like an
, injector, the smoke or gases of combustion being drawn, by the velocity of the
. steam, from the furnace A into the reservoir D.
From the reservoir D, a tube m o communicates with a second serpentine pipe
or coil op, also placed in the furnace A aforesaid. As soon as the mixture of
steam and gases of combustion has attained a high pressure in the reservoir D,
a valve is opened and the mixture under pressure is conveyed to the second
coil po where it is heated again and may be then conducted to the steam engine
or other apparatus.
It is thus seen that a furnace is provided in which the fuel is completely utilised,
not only by heating the water in the boiler, but also by employing the burned,
gases themselves for feeding a reservoir, and serving instead of, or in conjunction
with, steam for driving engines or for other purposes.
Smoke is completely avoided and a chimney becomes unnecessary.
It is evident that, instead of a serpentine pipe or coil, a different form or shape
of boiler may be employed for producing the steam. The water may, if desired,
be heated by a separate furnace, or the steam may be taken from another steam
boiler. If desired, the portion B may of course be omitted so that the conical
tube C passes uncovered through the open air to the reservoir D.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
The improvements in or appertaining to steam generators and in the method of
utilising the heated products therefrom, which consist in so constructing such class
of apparatus that the products of combustion from the furnace are drawn or forced
into a receiver (D) by steam, the resulting mixture of steam and gases being used
for driving steam engines or for other similar purposes, all substantially as herein-
before set forth.
Dated this 5th day of September 1892
WM. P. THOMPSON & Co.,
Agents for the Applicant.