Improvements in Apparatus for Forcing Liquids by Direct Steam Pressure.
Year: 1899

page_text: Date of Application, 27th Apr., 1899
Complete Specification Left, 4th Jan., 1900-Accepted, 24th Feb., 1900
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Forcing Liquids by Direct Steam
Pressure.
I. RICHARD LUHN, of Haspe i. W., Germany, Manufacturing Engineer, do
hereby declare the nature of this invention to be as follows:-
1
This invention relates to apparatus for ejecting liquids by direct steam pressure
which differs from similar apparatus by its means for automatic regulation. The
novelty of the invention consists essentially in the alternate action of a float on
the valves for the liquid, steam, and air. It will be obvious that a perfectly
sure and quick operation for any length of time can only be obtained in this
manner.
The accompanying sheet of drawings shows vertical sections through the
apparatus Fig. 1 and through details at an enlarged scale, Fig. 2.
The action is as follows:
The liquid to be ejected passes through a valve a into a vessel A, rises in the
latter and in a pipe contained therein until it flows from the pipe b into a
regulator B. The level of the liquid then does not continue to rise in the vessel
because it must first fill the regulator B. The continuous flow of the liquid into
the regulator B causes a float c to rise. A rod connected to the float c acts by
a levere on a valve arrangement C.
Through this action a steam valve f is opened and an exhaust valve p is closed.
In consequence steam enters from a steam supply port S and through a pipe h
above the liquid in the pressure vessel A; an excess of pressure thus produced
keeps the water admission valve a closed.
As the pressure increases continuously, the liquid first passes through the
pipe to the regulator B, and the latter is filled completely, the exit pipe i
thereof being smaller in diameter than the pipe b.
A pressure valve D is arranged below the lowest point of the bottom of the
regulator B, the latter is therefore completely emptied and the float e returns into
its original position, closing the steam valve and opening the air valve, so that
and
the pressure in the vessel A and B can escape through the exhaust valve
pipe g. In consequence the valve a becomes free again, and the liquid can flow
again into the vessel A.
P
A pipe K opens equilibrium communication between the vessel A and the
regulator B.
As the area of the steam valve f is made larger than that of the exhaust
valve 1', considerably more steam can enter, than can momentarily escape through
the exhaust valve p when the float rises; therefore a slight excess of pressure is
produced which presses some liquid to the regulator B. and raises the float so that
the steam valve is opened immediately and the exhaust valve closed immediately.
Therefore loss of steam through gradual closing of the exhaust valve is thus

page_text: entirely prevented in consequence of the unequal areas of the steam and exhaust
valves.
Data L
C
1 1000
FELL & JAMES,
Agents for the Applicant.
Improvements in Apparatus for Forcing Liquids by Direct Steam
Pressure.
I, RICHARD LUHN, of Haspe i. W., Germany, Manufacturing 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 relates to apparatus for ejecting liquids by direct steam pressure
which differs from similar apparatus by its means for automatic regulation. The
novelty of the invention consists essentially in the alternate action of a float on
the valves for the liquid, steam, and air. It will be obvious that a perfectly
sure and quick operation for any length of time can only be obtained in this
manner.
In order that this invention may be the better understood, I will now proceed
to describe the same in relation to, the drawings accompanying the Provisional
Specification.
Figure 1 shows vertical sections through the apparatus and
Figure 2 through details at an enlarged scale.
The action is as follows:
The liquid to be ejected passes through a valve a into a vessel A, rises in the
latter and in a pipe b contained therein until it flows from the pipe 6 into a
regulator B. The level of the liquid then does not continue to rise in the vessel
because it must first fill the regulator B. The continuous flow of the liquid into
the regulator B causes a float c to rise. A rod k connected to the float c acts by
a lever e on a valve arrangement C.
Through this action a steam valve f is opened and an exhaust valve p is closed.
In consequence steam enters from a steam supply port S and through a pipe h
above the liquid in the pressure vessel A; an excess of pressure thus produced
keeps the water admission valve a closed.
As the pressure increases continuously, the liquid first passes through the
pipe to the regulator B and the latter is filled completely, the exit pipe i
thereof being smaller in diameter that the pipe b.
A pressure valve D is arranged below the lowest point of the bottom of the
regulator B, the latter is therefore completely emptied and the float e returns into
its original position, closing the steam valve and opening the air valve, so that
the pressure in the vessel A and B can escape through the exhaust valve บ and
pipe g. In consequence the valve a becomes free again, and the liquid can flow
again into the vessel A.
A pipe K opens equilibrium communication between the vessel A and the
regulator B. As the area of the steam valve f is made larger than that of the 4
exhaust valve 2, considerably more steam can enter, than can momentarily escape
through the exhaust valve h, when the float rises; therefore a slight excess of
pressure is produced which presses some liquid to the regulator B and raises the
float 30 that the steam valve is opened immediately and the exhaust valve closed
immediately. Therefore loss of steam through gradual closing of the exhaust 5

page_text: valve is thus entirely prevented in consequence of the unequal areas of the steam
and exhaust valves.
Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1st. An ejector with pressure and liquid regulating device, in which liquid,
steam and air valves a, f, 1, of a vessel A, are alternately operated by a float c,
pipe i and a rod e, in order to start and close the ejector, so as to obtain a con-
tinuous and automatic working of the ejector, substantially as described.
2nd. An ejector is claimed in Claim 1 in which the cross section of the steam
pipe and valve f and pipe respectively is larger than that of the exhaust
valve p and pipe g and pipe i respectively, the vessel A being connected to the
regulator B by a pipe K in order to effect automatic regulation in the shortest
possible time, substantially as described.
3rd. An ejector is claimed in Claims 1 and 2 in which the liquid valve a, the
pipe b, and the regulator B are situated higher than the valve D to ensure the
complete discharge of the regulator B.
Dated this 4th day of January 1900.
FELL & JAMES,
Agents for the Applicant.