Improvements in and relating to Apparatus for Utilizing the Exhaust Fluid Pressure from Steam and other Motive Power Engines.
Year: 1897

page_text: Date of Application, 30th Nov., 1897-Accepted, 26th Feb., 1898
COMPLETE SPECIFICATION.
Improvements in and relating to Apparatus for Utilizing the
Exhaust Fluid Pressure from Steam and other Motive Power
Engines.
I, PATRICK FRANCIS HALEY, a citizen of the United States of America, residing
at 2503, East York Street, in the City and County of Philadelphia, and State of
Pennsylvania, United States of America, 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:—
My invention relates to an apparatus for utilizing the exhaust fluid pressure
from boilers and steam and other engines, and its object is to provide an improved
construction of apparatus of this character by which the exhaust fluid pressure
may be utilized for driving engines and machinery or for heating purposes.
To this end the invention consists in the novel constructions and combinations
hereinafter more fully described and specifically set forth in the appended claims.
In the drawings herewith,
Figure 1 is a side elevation of an apparatus embodying my invention. Figure 2
is a vertical longitudinal section of the same; Figure 3 a top plan view; Figure 4
is an enlarged detail sectional view of the supply pipe and connections, and
Figure 5 a detail perspective view of the cone valve in the supply pipe.
Referring to the drawings, 1 is a tank or reservoir in which the exhaust fluid
pressure is stored for use. 2 is a main supply pipe leading from the exhaust pipe
of the boiler or engine and opening through one head of the reservoir, a collar 3
retaining it in position. This supply pipe is provided with a valve seat 4 for an
inwardly opening hollow cone valve 5 and in rear of said valve seat with a conical
reducing bushing 6 and a conical reciprocating cut-off valve 7 controlling the flow
of fluid pressure therethrough. Connected with the other head of the reservoir
are escape pipes 8, 9, and a supply pipe 10 which in practice leads to the engine or
other motor to be driven or to a steam-heating system. The auxiliary escape
pipe 9 is in communication with the main escape pipe 8, but may if desired vent
directly to the atmosphere.
The motive agent, such as steam for instance, feeds into the reservoir 1 through
the pipe 2 and thence out through the pipe 10, which may be provided with suitable
controlling valves. The cut-off valve is connected with a lever 11 fulcrumed
to the pipe 2 and a lever 12 is connected with an oscillatory plug valve 13 in the
main escape pipe 8. The free ends of these two valve levers 11-12, are connected
by a rod 14 so as to move in unison, so that when the valve 7 is moved to cut off
the supply of steam, the valve 13 will be opened to permit steam to escape from the
reservoir and vice versa, this operation being effected automatically through the
provision of a rod 15 connected with a governor (not shown) on the engine or motor
driven. The reducing bushing 6 and valve 7 are designed to regulate the supply
of steam to the reservoir in accordance with the amount of steam passing through
the pipe 10, so as to maintain a given pressure in said reservoir, but when the
engine is running above its normal, the valve connections herein before described are

page_text: operated to close the valve 7 and open the valve 13 to allow the excess pressure in
the reservoir to exhaust to the atmosphere. When, however, back pressure occurs
when the engine is running at its normal speed, the incoming steam flows through
an exhaust pipe 16 connected with the pipe 2 back to the source of steam supply.
I may provide this exhaust pipe with a whistle or other alarm device 17 to notify
the engineer that back pressure exists.
The valve 5 is hollow and comprises two cone frustums arranged in apposition
and having their apexes connected. This valve is hollow and forms a reduced or
contracted feed orifice 5b at the center where said apexes join. At the enlarged
end of each cone frustum the valve is provided with spaced shoulders or wings 5"
on which it moves, the spaces between said shoulders forming inlets for passage of
steam. The motion of the valve is limited by the seat 4 and collar 3. In operation
the valve normally abuts against seat 4, its orifice 5b being sufficient for passage of
steam under ordinary pressure, but when a sudden increase of steam pressure in the
pipe occurs, said valve is forced off seat 4 and the steam is then permitted to feed
both through the orifice 5 and inlets between the shoulders 5ª.
The rod 14 is constructed of two sections 14ª, 14b, one having right-hand and the
. other left-hand threads, and a threaded sleeve 14° adjustably connects said sections.
By means of this sleeve, the stroke of the rod may be varied in opening and closing
the valves.
In order to quickly relieve the reservoir 1 and main supply pipe 2 of excess
steam pressure, I have provided said parts with cylinders 18, 19, in which operate
plungers 18, 198.
20, 20 represent operating rods fulcrumed, respectively to standards 21, 21°.
The outer end of the rod 20 is jointed to the rod of the plunger 19ª, and the inner
ends of the two rods are jointed to.a wrist-pin 18b.on the rod of the plunger 18".
The rod 20 is connected with the upper end of a lever 22, which in turn is con-
nected at its lower end to a crank shaft 23 carrying an oscillatory plug valve 24
controlling the escape of steam through pipe 9. When the steam pressure within
the reservoir rises above that in the supply pipe, the plunger 18" is forced upward,
the rod 20° tilted and the valve 24 opened, permitting the excess pressure to escape
through the pipe 9 as well as the pipe 8 and the plunger 19" is forced downward
and held closed until the pressure in the supply pipe predominates, whereupon the
plunger 19 will rise, force the plunger 18" down and close the valve 24.
The plunger rods may be provided with arms or projections 25 to support weights
for the purpose of adapting the plungers to move under any pressure desired.
From the above description taken in connection with the accompanying drawings,
the operation of the apparatus will be readily understood.
The apparatus may be employed in connection with boilers and engines of various
kinds for driving auxiliary machinery, and used on locomotives for driving an
engine or dynamo to furnish power for wrecking crews, lighting the train, and
for other purposes.
I do not, therefore, limit the invention in application to any particular fluid-
pressure motor or to any particular use.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim, is:-
-
an
1. In an apparatus of the class described, the combination of a reservoir, a main
check valve and a
supply pipe provided with a reducing bushing, a
reciprocating cut-off valve, a discharge pipe, escape pipe having a
valve, levers connected with said valve and the reciprocating cut-off, and an
adjustable rod connecting said levers, substantially as shown and described.
2. In an apparatus of the class described, the combination of a reservoir, a main
supply pipe, a conical reducing bushing in said pipe, a conical reciprocating cut-off
valve connected therewith, a check valve between the cut-off valve and reservoir,
an exhaust pipe adapted to carry off the pressure in the supply pipe when said check

page_text: valve is closed, a discharge pipe, an escape pipe having a valve, levers connected
with said valve and the reciprocating cut-off, and an adjustable rod connecting said
levers, substantially as shown and described.
3. In an apparatus of the class described, the combination of a reservoir, a main
supply pipe having a check valve adapted to close when the pressure in the reservoir
exceeds that in the main pipe, a discharge pipe, an escape pipe provided with a valve,
cylinders in communication with the supply pipe and reservoir, a plunger in each
cylinder, a tilting rod connecting the rods of said plungers, and a lever connecting
the tilting rod and escape pipe valve, substantially as described.
4. In an apparatus of the class described, the combination of a reservoir, a main
supply pipe provided with a reducing bushing, a check valve and a reciprocating
cut-off valve, a discharge pipe, an escape pipe provided with a valve, cylinders in
communication with the supply pipe and reservoir, a plunger in each cylinder, a
tilting rod connecting the rods of said plungers, and a lever connecting the tilting
rod and escape pipe valve, substantially as described.
Dated this 30th day of November 1897
-JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.