An Improved Method of Heating Jackets and Receivers of Steam and other Motive-power Engines.
Year: 1893

page_text: Date of Application, 13th May, 1893
Complete Specification Left, 5th Aug., 1893-Accepted, 9th Sept., 1893
PROVISIONAL SPECIFICATION.
An Improved Method of Heating Jackets and Receivers of Steam
and other Motive-power Engines.
I, RICHARD HOYLE of Southbank, Heaton near Bolton in the County of
Lancaster, Cotton Spinner, do hereby declare the nature of my said invention to
be as follows :-
This invention relates to an improved method of heating jackets and receivers of
steam and other motive-power engines and consists in effecting the same in a cheap
and economical manner by means of heated atmospheric air forced or drawn through
pipes, coils, or other equivalents disposed in the flues or smoke passages leading
from a steam boiler or boilers to the chimney, or by exhausting or forcing the waste
gases in the boiler flue or flues through the cylinder jacket and receiver casing, the
same being conveyed thereto by pipes or other equivalents in any convenient
manner. The said pipes, coils, or other equivalents may be of any desired form and
size, and placed in any convenient manner in the said flues or passages according to
the construction of the latter. Atmospheric air may be forced through the pipes,
coils, or other equivalents by a fan or blower, and in its passage through the same
is heated, from whence it passes to the jackets or casings employed in connection
with the cylinders of steam and other motive-power engines for the purposes of
superheating and economy. Valves and other arrangements may be provided to
allow of the exit of the heated air or gases from the jackets and receivers in
regulated or other quantities. This invention is equally applicable for heating the
jackets or casings of receivers and pipes employed to connect high and low-
pressure cylinders in compound, triple, quadruple, and other expansive engines.
Dated the 12th May 1893
EDMUND CHADWICK, F.I.C.P.A.,
Agent.
COMPLETE SPECIFICATION.
An Improved Method of Heating Jackets and Receivers of Steam
and other Motive-power Engines.
I, RICHARD HOYLE of Southbank, Heaton near Bolton in the County of
Lancaster, Cotton Spinner, do hereby declare the nature of my said 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 relates to an improved method of heating jackets and receivers of
steam and other motive-power engines and consists in effecting the same in a cheap
and economical manner by means of heated atmospheric air forced or drawn
through pipes, coils, or other equivalents disposed in the flues or smoke passages
leading from a steam boiler or boilers to the chimney, or by exhausting or forcing
the waste gases in the boiler flue or flues through the cylinder jacket and receiver
casing, the same being conveyed thereto by pipes or other equivalents in any
convenient manner. The said pipes, coils, or other equivalents may be of any
desired form and size, and placed in any convenient manner in the said flues or
passages according to the construction of the latter. Atmospheric air may be
forced through the pipes, coils, or other equivalents by a fan or blower, and in its
passage through the same is heated, from whence it passes to the jackets or casings
employed in connection with the cylinders of steam and other motive-power engines
DQ77

page_text: for the purposes of superheating and economy. Valves and other arrangements
may be provided to allow of the exit of the heated air or gases from the jackets
and receivers in regulated or other quantities. This invention is equally applicable
for heating the jackets or casings of receivers and pipes employed to connect high
and low-pressure cylinders in compound, triple, quadruple, and other expansive
engines.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a plan of a steam boiler and so much of a compound engine as is
necessary to illustrate my invention with heating pipes in main flue leading from
boiler to chimney.
Fig. 2 is a plan of a steam boiler with heating pipes located in the bottom flue or
flame-bed, and
Fig. 3 is a transverse section through line A B in Fig. 2.
C is a steam boiler; D the bottom flue or flame-bed; E side flues; G flue
leading from boiler to chimney; H a jacketed high-pressure cylinder; I a jacketed
low-pressure cylinder; Ja jacketed receiver or pipe connecting the high and low
pressure cylinders; K the crank shaft, and L the driving pulley.
The object of this invention is to heat the jackets and receivers or pipes
connecting high and low pressure cylinders in a cheap and economical manner by
means of heated atmospheric air or waste gases in lieu of live steam as at present
employed for superheating purposes. One method I employ for carrying this
invention into effect is shown in Fig. 1, wherein I dispose in the flue G the range or
series of vertical pipes M, so arranged that atmospheric air may be forced through
the same in successive order or otherwise by means of the fan or blower N. After
atmospheric air has been forced through the entire range or series of pipes M it is
delivered into the outlet pipe O, which conveys the same into the engine house and
to the jackets or casings of the cylinders H and I, and the receiver or connecting
pipe J by the pipes P. The latter are fitted with the valves R for the purpose of
regulating the quantity of heated air or for shutting off the same if desired or
necessary.
In the modification shown in Figs. 2 and the pipes M are placed longitudinally
in the bottom flue or flame-bed D of the boiler seating. In this arrangement the
pipes M may extend nearly the full length of the boiler or otherwise, being coupled
at each end so as to allow of the atmospheric air to be heated being passed up and
down on the supply side and then across to the other side where the operation is
repeated before passing to the outlet pipe O.
If desired the fan N may be coupled to pipes leading from the jackets of the
cylinders H and I and receiver or connecting pipe J, in which case the atmospheric
air will be drawn through the pipes M to be heated; and by coupling the inlet to
the pipes M with the boiler flue or flues the waste gases passing from the boiler to
the chimney may be drawn through the same and utilized for heating the said
jackets. By coupling the inlet to the fan or blower N with the boiler flue or flues
the waste gases may be forced through the said jackets for the said purpose.
The outlets from the jackets may be provided with valves or other arrangements
to regulate the exit of the heated air or gases therefrom.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Heating the jackets of cylinders, and receivers or pipes connecting high and
low pressure cylinders, of steam and other motive-power engines by means of
heated atmospheric air forced or drawn through pipes, coils, or other equivalents
disposed in the flues or smoke passages of a steam boiler, substantially as described.
2. Heating the jackets of cylinders, and receivers or pipes connecting high and
low pressure cylinders, of steam and other motive-power engines by means of

page_text: forcing or drawing waste gases from a boiler flue or flues through the same, sub-
stantially as described.
Dated the 4th August 1893.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.