Automatic Boiler Feed.
Year: 1894

page_text: PROVISIONAL SPECIFICATION.
Automatic Boiler Feed.
I, HANS CHRISTIAN LUNGE, of Sorö, Denmark, Engineer, do hereby declare
the nature of this invention to be as follows:-
This invention relates to an automatic boiler feed and the object of my invention
is to automatically regulate the supply of water to a boiler, instead of having to
open or close the feed valve of the continuously acting pump by hand when
required, as has heretofore been necessary. The continuously acting steam pump
referred to is the pump attached to most steam engines whose plunger is connected
by a connecting rod to an eccentric on the crank shaft and is therefore at work
the whole time that the engines are in motion.
In carrying out my invention I provide the boiler at or about its top, with a pipe
one end of which projects through and reaches to about the normal water level
therein, the other end being connected to a coupling-box which is provided
with a suitable stuffing box for this purpose and which is supported in a suitable
bearing.
At a convenient part of said coupling-box I provide a second pipe whose outer
end is connected to a suitably constructed vessel adapted to contain water and at a
part of the coupling-box about opposite to said second pipe I attach a rod which is
provided at its outer end with a suitable weight or counterpoise, the whole being
so arranged that when the vessel is full of water it overbalances the weight, but if
empty the weight descends and the vessel ascends for the purpose hereinafter
described. At a suitable part of the coupling-box I provide a projection or the
like which rests on or engages with a roller which is supported in the forked end of
the feed valve so that on the weight overbalancing the vessel, said feed valve
will be turned on and consequently the steam pump will pump water into the
boiler.
In the accompanying drawings
Figs. 1 and 2 represent respectively a front and side elevation of my invention.
Fig. 3 represents a section thereof.
a, represents a boiler which is provided with a pipe m, the lower end of which
projects through the shell and reaches to about the normal water level in said
boiler. The other end of said pipe m, is connected to a coupling-box h, which is
provided with a suitable stuffing box and which is supported in a suitable bearing 1.
At a convenient part of said coupling-box I provide a pipe d, whose outer end is
connected to a vessel k, which is adapted to contain water, and at a part of said
coupling-box about opposite to said pipe d, I attach a rod e, which is provided at
its outer end with a suitable weight or counterpoise f.
If desired a pipe m', similar to the pipe m, is connected to the opposite end of
the coupling-box h, by means of a stuffing box and if such pipe m', be employed,
the coupling box h, must be provided with a partition 3, so as to cut off
communication with the pipe m, therein. Said pipe m' is connected by means of a
pipe u, to the top of the vessel k, said vessel being also, if required, provided with
a water gave (See Fig. 2.)

page_text: r, 18
The coupling-box h, is provided with a projection e, which rests on or engages
with a roller o, supported in the forked end g, of the valve spindle of valve v.
the feed and the overflow or return pipe of the steam pump.
:*
The operation of my apparatus is as follows normally, the vessel k, is full of
water and said vessel k, pipe d, and rod e, and weight f, are in the position as
shown. When the water in the boiler a, sinks below the normal water line, steam
enters the pipe m, and thereby allows the water in the vessel to flow through said
pipe m, into the boiler, the effect of this is, that the vessel k, becomes lighter than
its counterpoise f, and is therefore raised upward by it, the whole turning in the
bearing 1. As the weighted end descends the projection e, on the coupling box
depresses the valve », and thereby causes the continuously acting pump to pump
water into the boiler. When the water level again reaches the tube or pipe m, the
supply of steam is cut off and the steam already in the vessel k, condenses thereby
creating a vacuum within it which causes water instead of steam to be forced into
it and when full its weight overcomes that of the counterpoise and the whole
returns to its normal position as shown.
The transmission of the rocking motion of the parts described to the valve v,
may be accomplished in various ways and the arrangement of the apparatus or its
parts may also be considerably varied without departing from my invention.
Dated this 21st day of February 1894.
REGINALD W. BARKER,
Applicant's Agent.
I, HANS CHRISTIAN LUNGE, of Sorö, Denmark, 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 an automatic boiler feed and the object of my invention
is to automatically regulate the supply of water to a boiler, instead of having to
open or close the feed valve of the continuously acting pump by hand when
required, as has heretofore been necessary. The continuously acting steam pump
referred to is the pump attached to most steam engines whose plunger is connected
by a connecting rod to an eccentric on the crank shaft and is therefore at work
the whole time that the engines are in motion.
In carrying out my invention I provide the boiler at or about its top, with a
pipe, one end of which projects through and reaches to about the normal water
level therein, the other end being connected to a coupling-box which is provided
with a suitable stuffing box for this purpose and which is supported in a suitable
bearing.
At a convenient part of said coupling-box I provide a second pipe whose outer
end is connected to a suitably constructed vessel adapted to contain water and at a
part of the coupling-box about opposite to said second pipe I attach a rod which
is provided at its outer end with a suitable weight or counterpoise, the whole being
so arranged that when the vessel is full of water it overbalances the weight, but
if empty the weight descends and the vessel ascends for the purpose hereinafter
described. At a suitable part of the coupling-tox I provide a projection or the
like which rests on or engages with a roller which is supported in the forked end
of the feed valve so that on the weight overbalancing the vessel, said feed valve
will be turned on and consequently the steam pump will pump water into the
boiler.

page_text: In the drawings left with the Provisional Specification Figs. 1 and 2 represent
respectively a front and side elevation of my invention.
Fig. 3 represents a section thereof.
a represents a boiler which is provided with a pipe m, the lower end of which"
projects through the shell and reaches to about the normal water level in said
boiler. The other end of said pipe m, is connected to a coupling-box h, which is
provided with a suitable stuffing box and which is supported in a suitable
bearing . At a convenient part of said coupling-box I provide a pipe d, whose
outer end is connected to a vessel k, which is adapted to contain water, and at a
part of said coupling-box about opposite to said pipe d, I attach a rod e, which is
provided at its outer end with a suitable weight or counterpoise f.
If desired a pipe m', similar to the pipe m is connected to the opposite end of
the coupling-box h, by means of a stuffing box and if such pipe m, be employed,
the coupling box h, must be provided with a partitions, so as to cut off
communication with the pipe m therein. Said pipe m' is connected by means of a
pipe u to the top of the vessel k, said vessel being also, if required, provided with
a water gauge. (See Fig. 2.)
The coupling-box h, is provided with a projection e, which rests on or engages
with a roller o, supported in the forked end g, of the valve spindle of valve v.
the feed and the overflow or return pipe of the steam pump.
* 18
The operation of my apparatus is as follows normally, the vessel k is full of
water and said vessel k, pipe d, and rod e, and weight f, are in the position as
shown. When the water in the boiler a, sinks below the normal water line, steam
enters the pipe m, and thereby allows the water in the vessel to flow through said
pipe m into the boiler, the effect of this is, that the vessel k, becomes lighter
than its counterpoise, and is therefore raised upward by it, the whole turning in
the bearing . As the weighted end descends the projection e, on the coupling-box
depresses the valve v, and thereby causes the continuously acting pump to pump
water into the boiler. When the water level again reaches the tube or pipe m,
the supply of steam is cut off and the steam already in the vessel k condenses
thereby creating a vacuum within it which causes water instead of steam to be
forced into it, and when full its weight overcomes that of the counterpoise and the
whole returns to its normal position as shown.
The transmission of the rocking motion of the parts described to the valve v,
may be accomplished in various ways and the arrangement of the apparatus or
its parts may also be considerably varied without departing from my invention.
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:
1. An automatic boiler feed comprising a valve v actuated as described for
regulating the supply of feed water to a boiler in such a manner that by opening
said valve more water passes from the continuously working feed pump into the
boiler, while by closing it, less or none will pass, substantially as herein set
forth, and described and illustrated by the drawings left with the Provisional
Specification.
2. In the self-acting boiler feed described, the arrangement of a suitable
vessel attached to a pivotal coupling-box by a pipe and balanced by a
counterpoise, and connected by a tube m with the normal water level in the
boiler in such a manner that when the lower open end of said tube is either
above or below (or on) the water level either steam or water will be caused to
fill the said vessel k and thus by its increased or reduced weight and suitable
lever connection or the like to valve is opened or closed, substantially as herein
set forth, and described and illustrated by the drawings left with the Provisional
Specification.
ひ
3. In connection with the aforesaid vessel k the arrangement of special steam
supply pipes (m³ u) reaching to the normal water level within the boiler whereby

page_text: the quicker and more direct filling of said vessel with steam may be effected
unhindered by any column of water, substantially as herein set forth, and described
and illustrated by the drawings left with the Provisional Specification.
Dated this 21st day of November 1894.
REGINALD W. BARKER,
Applicant's Agent.