An Improved Method of and Apparatus for Automatically Feeding Boilers and Reducing the Pressure of Steam.
Year: 1896

page_text: Date of Application, 1st July, 1896
Complete Specification Left, 30th Mar., 1897--Accepted, 22nd May, 1897
ISIONAL
An Improved Method of and Apparatus for Automatically Feeding
Boilers and Reducing the Pressure of Steam.
I, FRANZ SCHOENEBERGER, of Kaiserslautern, Rhein-Pfalz, in the Empire
of Germany, do hereby declare the nature of this invention to be as follows:-
This invention has for its object the construction and combination of certain
mechanism so arranged that, the water fed to a steam boiler, is automatically
regulated in relation to the height of the water in the boiler; and to so arrange
the apparatus that, should the water level become too high, a valve is automatically
opened and the water allowed to escape; also by the novel combination, to reduce
the pressure of steam when it gets higher than the required pressure.
In carrying out my object, I combine with a steam boiler a vessel having
connections with the boiler, one into the water space, and one into the steam
space, by which the water in the vessel is of the same height as that in the
boiler.
At the outside of the said vessel a pipe connects the steam to the water space,
and on this pipe is mounted a hollow drum, into which water is allowed to enter
and with which is combined a lever and weight, so regulated that, when the water
is at its normal height in the boiler and vessel, the drum is level, in such position
as to keep a steam valve closed and shut off the supply of steam from each end
of a cylinder.
If the water in the boiler gets too high, then more water enters the drum,
causing the same to oscillate to some extent on its bearing, and operate the before
mentioned steam valve, into a position for allowing steam to enter one end of
the before mentioned cylinder, and force the piston therein in front of the
pressure, thereby, through suitable connections, depressing or opening a water
valve and allowing water to escape until it regains its normal height in the
boiler.
In case the water in the boiler gets below its normal working height, the
quantity of water in the drum is reduced, thus allowing the weight on the lever
to move the drum into another position, and open the first mentioned valve, so
that steam enters the opposite end of the cylinder, and forces the piston therein
before it, opening another valve which is in connection with the steam space of
the vessel. This valve admits steam alternately to each end of a cylinder in
connection with a pump, which is operated thereby, and fills up the boiler with
water to the required level, then it will be automatically stopped when the drum is
about a level position.
If in case the steam in the boiler exceeds the required pressure, it forces through
another pipe a piston into the position to allow steam to enter the cylinder of the
feed pump, which on working, pumps water into the boiler thereby reducing the
pressure.
ديد
T100c
JOHN WAUGH,
Agent.

page_text: An Improved Method of and Apparatus for Automatically Feeding
Boilers and Reducing the Pressure of Steam.
I, FRANZ SCHOENEBERGER, of Kaiserslautern, Rhein-Pfalz, in the Empire
of Germany, 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 has for its object, the construction and combination of certain
mechanism so that, the water fed to a steam boiler is automatically regulated in
relation to the varying heights of the water in the boiler; and to so arrange the
apparatus that, should the water level in the boiler become too high, a valve is
automatically opened and water allowed to escape, or if the water be too low a
feed pump is automatically put into operation; also by a novel combination, to
reduce the pressure of steam whenever it gets higher than required and thereby
reduce the liability of an explosion which might be caused by excessive.
pressure.
The apparatus differs from others serving the same purpose, principally by
arranging a vessel in front of and communicating with the interior of the boiler,
and connecting the vessel with a hollow drum mounted upon a pipe pivot in a
manner that, the hollow drum oscillates up and down, in accordance with the
height of the water in the boiler, and in consequence of the oscillations, if the
water be too low operates a valve, enabling steam in the upper part of the vessel
to enter into a cylinder, by which a feed pump may be automatically started
for feeding the boiler, or a valve opened and water allowed to escape should it
become higher than required.
In order that the said invention may be well understood, the accompanying
drawings illustrative thereof, are referred to in the description by letters and
figures, like letters and figures referring to similar parts.
Fig. 1 represents a portion of the front elevation of a boiler and feed pump
combined with my automatic regulator.
Fig. 2 is a plan of my automatic regulator.
Fig. 3 a plan of the feed pump.
Fig. 4 a side elevation of my automatic regulator drawn to a smaller scale,
showing the attachment of the apparatus to the boiler front.
Fig. 5 is a section through the steam tap or valve showing same in various.
positions.
Fig. 6 a sectional plan view of the reversing cylinder, and
Fig. 7 a vertical sectional view of the reversing cylinder fixed in position on
top of vessel connected to the front plate of boiler.
In front of the boiler C. is a vessel B. communicating with the steam and water
spaces of the boiler, the upper opening allowing the entrance of steam and the
lower opening water to flow into the said vessel.
The steam and water spaces of the vessel B. are connected by pipes k. to a
hollow drum D. mounted on a pipe or tube pivot i. in front of the vessel B.
Water and steam flow into the hollow drum D. and when the water in the boiler C.
is at its normal height, the hollow drum D. is kept level by the lever and balance
weight P. connected thereto.
The hollow drum D. is connected by a rod G. and lever G¹ to a tap H. sectional
details of which are shown by Fig. 5, the tap being regulated according to the
level or inclined position of the hollow drum D, the said tap when open allowing
steam flowing through the pipe r. to pass through the pipes or ³ to the left or
to the right of piston M. in cylinder I, whereby the piston M. and rod m. are
moved to the right or to the left as the case may be; if moved to the right,

page_text: causing the top end of the lever h. to be operited in the direction of the arrow
in Fig. 7, and the extended end of said lever below the fulcrum pin at t. to act.
upon and depress the spindle of the steam valve E, thereby allowing steam to flow
to the cylinder of the steam feed pump On the returu of the lever h. and
piston M. the valve E. may be closed by the expansion of the compressed spiral
spring 1.
If steam enters the cylinder I. through the tube to the right of the piston M.
the piston M. and rod m. are moved to the left, the extended end t of the
lever ¹ then acts upon the spindle f¹ of valve F, thereby opening the valve and
allowing water to flow off.
The action of the apparatus is as follows.
When the water in the boiler C. is
at its normal height, it is at or about the centre of the hollow drum D. which is
then in a horizontal position as shown by full lines in Fig. 1, and the position of
the vane in tap H. is as indicated by the top section 1. of Fig. 5 showing both
tubes and leading to the opposite ends of the cylinder I. closed. As soon
as there is too much water in the boiler C. and therefore in the hollow drum D.
the latter is weighted and descends to the position shown by dotted lines 2, this
descent operates the rod G. and lever G¹ moving the vane of the tap H. to the
position indicated by section 2. in Fig. 5. Steam is thereby admitted by tube :
to the right side of piston M. which then moves to the left, and as before
described presses the valve spindle fiu a downward direction, thereby opening
the valve F. so that water is allowed to flow off from the boiler through the
hollow drum D. and vessel B. to a 'cistern or the like until the normal level of
water is reached.
If there be too much water in the boiler C. and hollow drum D. the balance-
weight P. will cause the drum D. to be tilted upwards as shown by dotted lines 3,
the vane of tap H. then takes the position indicated by section 3. in Fig. 5,
allowing steam to flow through tube
moved in the direction of the arrow in
as before described, thereby allowing
operation the self acting feed pump
boiler C.
to the left of the piston M. which is then
Fig. 7, opening the valve E. in the manner
steam to enter the cylinder and put into
A. by which water is forced into the
The excessive steam pressure in the boiler is regulated by the steam pipe S',.
piston T. and spring S. combined with the steam feed pump A, the piston T. being
kept in the position shown by the said spring when the pressure is normal. In:
case the steam pressure in the boiler C. increases sufficiently to force the piston T.
and compress the spiral spring S. steam will flow through the pipe S' and
opening U. to the cylinder of the feed pump A. and put the pump into.
operation and thereby pump water into the boiler by which the pressure is
reduced.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. An apparatus for regulating the water level in boilers by an oscillating-
hollow drum D. controlling a valve or tap H. combined with a cylinder I. having
a steam feed pump A. on one side and a valve F. on the other side, arranged.
and operated substantially in the manner and for the purpose as herein before set
forth.
2. The piston T. and spiral spring S. combined with a steam boiler and steam.
feed pump A. substantially in the manner and for the purpose as herein before set.
forth.
Dated ALA
2007
JOHN WAUGH,
Agent.