IMPROVEMENTS IN STEAM ENGINES OPERATING WITH REGENERATED STEAM
Year: 1881

page_text: LETTERS PATENT to Edwin Ambrose Brydges, of the Firm of Brydges
& Co., Engineers and Patent Solicitors, of 73, Koniggraetzer Str., in the
City of Berlin and German Empire, and 6, St. Leonard's Terrace, Upton, in the
County of Middlesex, for an Invention of "IMPROVEMENTS IN STEAM ENGINES
OPERATING WITH REGENERATED STEAM." A communication by Hector de
Grousilliers, of the City of Berlin aforesaid.
PROVISIONAL SPECIFICATION left by the said Edwin Ambrose Brydges at
the Office of the Commissioners of Patents on the 16th August 1881.
EDWIN AMBROSE BRYDGES, of the Firm of Brydges & Co., Engineers and
Patent Solicitors, of 73, Koniggraetzer Str., in the City of Berlin and German
Empire, and 6, St. Leonard's Terrace, Upton, in the County of Middlesex.
"IMPROVEMENTS IN STEAM ENGINES OPERATING WITH REGENERATED STEAM."
A communication by Hector de Grousilliers, of the City of Berlin aforesaid.
This Invention relates to improvements in steam engines in which the spent
steam is regenerated and employed afresh.
The present known constructions of steam engines do not permit of their
regenerating their steam, that is, the steam cannot be so reconducted into the same
steam chest from which the said steam was led into the machine; that the said
steam,
1 Never loses its form during the entire operation, that is, does not become
condensed.
2. Again receives the same pressure and temperature.
3. Produces a considerable increase in available power.
This problem has however been most effectually solved by employing this
present Invention.
The principal feature of this Invention consists in such an arrangement of the
parts, that if steam is once generated the same retains its aggregate condition, and
can be continuously re-employed for producing power, so that it is only necessary to
Price 6d1

page_text: replace such steam as is lost by leakage or untightness of the parts. This object is
accomplished in the following manner :-
The steam passing from the steam chest of the boiler into the machine passes
through a superheater and enters the machine only in highly superheated
condition.
The exhaust steam passes first through a cooling apparatus in which the said
steam is cooled almost to condensation temperature; this cooled steam now enters
the compression apparatus, which forces the said steam back into the steam chest of
the boiler. It is preferred to locate the cooling apparatus in the water contained
in the steam boiler, as the said water has the requisite boiling heat, and in this
manner the temperature of the exhaust steam is lowered. By employing this
arrangement the steam is prevented from condensing, and on the other hand the
warmth emanating from the same is employed for generating new steam or steam
to replace the said spent steam.
The steam which is pressed back again into the steam chest flows afresh into the
machine, and is again used, after which the above described operations are repeated.
In consequence of my said improvements a much smaller boiler can be employed than
is customary.
It is preferred to construct the boiler of wrought iron plates capable of resisting
high pressure, which said boiler is partially filled with water.
Steam is generated in the tubes located in the firebox of the furnace.
Saturated steam passes from the boiler through a tube or pipe to the regulator,
from whence it passes through a suitable tube or pipe to the superheater, and from
thence through a suitable pipe or tube to the slide box, where the said superheated
steam is caused to operate on the upper or lower surface of the piston, according to
the position of the slide.
The spent or exhaust steam flows through the outlet canal or channel into a pipe
ór tube through the cooling apparatus, and through suitable tubing or pipes into
the compression cylinder, from whence it is pressed or forced through the tubes or
pipes employed for this purpose into the steam chest, when the above described
circulation again ensues.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, and
of an Order of the Lord Chancellor, filed by the said Edwin Ambrose Brydges
in the Great Seal Patent Office on the 16th March 1882.
EDWIN AMBROSE BRYDGES, of the Firm of Brydges and Co., Engineers and
Patent Solicitors, of 73, Königgrätzer Str., in the City of Berlin and German
Empire, and of 6, St. Leonard's Terrace, Upton, in the County of Middlesex.
"IMPROVEMENTS IN STEAM ENGINES OPERATING WITH REGENERATED STEAM."
A communication by Hector de Grousilliers, of the City of Berlin aforesaid.
This Invention relates to improvements in steam engines in which the spent
steam is regenerated and, employed afresh. The present known constructions of
steam engines do not permit of their regenerating their steam, that is, the steam
cannot be so reconducted into the same steam chest from which the said steam was
led into the machine or engine; that the said steam,―
1. Never loses its form during the entire operation, that is, it does not become
condensed.
2. Again receives the same pressure and temperature.
3. Produces a considerable increase in available power.
This problem has however been most effectually solved by employing this present
Invention.
The principal feature of this Invention consists in such an arrangement of the
parts, that if steam is once generated the same retains its aggregate condition, and
can be continuously reemployed for producing power, so that it is only necessary to
replace such steam as is lost by leakage or untightness of the parts.
This object is accomplished in the following manner:-
The steam passing from the steam-chest of the boiler into the machine or engine,
passes through a superheater, and enters the engine only in highly superheated
condition.
The exhaust steam passes first through a cooling apparatus in which the said
steam is cooled almost to condensation temperature; this cooled steam now enters
the compression apparatus, which forces the said steam back into the steam chest of
the boiler.
It is preferred to locate the cooling apparatus in the water contained in the
steam boiler, as the said water has the requisite boiling heat, and in this manner
the temperature of the exhaust steam is lowered. By employing this arrangement
the steam is prevented from condensing, and on the other hand the warmth
emanating from the same is employed for generating new steam, or steam to replace
the said spent steam. The steam which is pressed back again into the steam chest
flows afresh into the machine or engine and is again used, after which the above
described operations are repeated. In consequence of my said improvements a
much smaller boiler can be employed than is customary. It is preferred to
construct the boiler A of wrought iron plates capable of resisting high pressure,
which said boiler is partially filled with water. Steam is generated in the tubes a
located in the fire box of the furnace B. Saturated steam passes from the boiler A.
through a tube or pipe b to the regulator or cut off C, from whence it passes
through a suitable tube or pipe c to the superheater D, and from thence through a
suitable pipe or tube d to the slide valve box, where the said superheated steam is
caused to operate on the upper or lower surface of the piston, according to the
position or the slide or valve.
The spent or exhaust steam flows through the outlet channel or valve ƒ into a
pipe or tube g through the cooling apparatus F, and through suitable tubing or
pipes K into the compression cylinder G, from whence it is pressed or forced .

page_text: through the tubes or pipes k employed for this purpose into the steam chest, when
the above described circulation again ensues.
Having now described my said Invention, and the manner in which the same is
to be carried into effect, I desire it to be understood that the parts of my Invention
can be modified without departing from the tenor of my said Invention, but what
I claim and desire to have secured by Letters Patent is,—.
Regenerating steam by means of an arrangement for reducing the superheated
exhaust steam to the temperature of the steam in the boiler, previous to the
entrance of the said exhaust steam into the compression cylinder, which is effected by
by the cooler F, which said cooler is surrounded by water of similar temperature to
the steam in the boiler, substantially as described in the foregoing Specification,
and shewn in the accompanying Drawings.
In witness whereof, I, the said Edwin Ambrose Brydges, have hereunto set
my hand and seal, this Twenty third day of January, in the year of our
Lord One thousand eight hundred and eighty two.