IMPROVEMENTS IN FEED. AP- PARATUS FOR SUPPLYING WATER TO STEAM BOILERS
Year: 1871

page_text: LETTERS PATENT to Augustus de Bergue, of 10, Strand, in the City.
of Westminster, for the Invention of "IMPROVEMENTS IN FEED. AP-
PARATUS FOR SUPPLYING WATER TO STEAM BOILERS."—A communication
from abroad by Esteban Dalmau y Sala, of Havanah, in the
Island of Cuba.
Sealed the 8th December 1871, and dated the 12th June 1871.
PROVISIONAL SPECIFICATION left by the said Augustus de Bergue
at the Office of the Commissioners of Patents, with his Petition, on
the 12th June 1871.
I, AUGUSTUS DE BERGUE, of 10, Strand, in the City of Westminster,
› do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
FEED APPARATUS FOR SUPPLYING WATER TO STEAM BOILERS," a communication
to me from abroad by Esteban Dalmau y Sala, of Havana, in the
Island of Cuba, to be as follows :—
The improvements consist in constructing feed apparatus for sup-
plying water-to steam boilers with an equalizing box or chamber having

page_text: communications with boiler above and below the standard water level,
and having within and passing through it a tube or pump barrel or
passage with openings (herein-after called the openings a), out of the
tube into it above and below the standard water level, and pistons
moving in the said tube with (what I term) injection space between
them for injecting into the box by successive movements isolated
portions or small quantities of water, which as delivered will by the
gravity of the water fall to the level of the water in the boiler (or
nearly so), steam being returned into the injection space between the
pistons in place of the water so injected, and provision being made for
the discharge of steam into and reception or admission of, water from
a reservoir or reservoirs in the intervals between the separate injections
or forward strokes of the pistons, and during the period that by the
motion of the pistons communication is shut off between the openings a
(into the equalizing box) and the injection space.
The intended mode of performance of the Invention is as follows:-
The reservoir and equalizing box to be of cast iron, and a brass tube
or pump barrel to lie horizontally within both, with its axial line
corresponding with standard water ‘line, No passage from .reservoir to
box, excepting through the tube, its openings a, and, corresponding
openings from tube into reservoir. The last-mentioned openings to be
partly on upper and partly on lower surface of the tube; the upper
ones for discharge of steam, opening into a blow-off pipe, passing
upwards within the reservoir to a level above the level at which the
feed water in same is to be allowed to accumulate. An overflow pipe
provided. Exhaust pipe of steam engine to pass into reservoir. Supply
pump to be worked from piston rod or otherwise, and the water so
pumped to pass into and at top of reservoir, so that in falling it may
condenso the exhaust steam and the steam discharged from injection
space by the blow-off pipe on the back stroke of the pistons. The
piston rod to be in one, with or coupled in line with and worked from
the piston rod of the engine or otherwise.
The Invention is applicable to low pressure, high pressure, locomotive;'
and marine boilers, and to rotary and reciprocating engines.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Augustus de Bergue in the Great Seal Patent
Office on the 12th December 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, AUGUSTUS
DE BERGUE, of 10, Strand, in the City of Westminster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twelfth day of June, in the year
of our Lord One thousand eight hundred and seventy-one, in the
thirty-fourth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said Augustus de Bergue, Her
special licence that I, the said Augustus de Berguc, my executors;
administrators, and assigns, or such others as I, the said Augustus
de Bergue, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN FEED APPARATUS FOR SUPPLYING WATER TO STEAM BOILERS,"
a communication to me from abroad by Esteban Dalmau y Sala, of
Havanah, in the Island of Cuba, upon the condition (amongst others)
that I, the said Augustus de Bergue, my exccutors or administrators,
by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Augustus de Bergue, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement:-
-
The improvements consist in constructing feed apparatus for supplying
water to steam boilers with an equalizing box or chamber having com-
munications with boiler above and below the standard water level, and
having within and passing through it a tube or pump barrel, or passage
with openings (herein-after called the openings a) out of the tube into:

page_text: it above and below the standard water level, and pistons moving in the
said tube with (what I term) injection space between them for injecting
into the box by successive movements isolated portions or small
quantities of water which as delivered will by the gravity of the water
fall to the level of the water in the boiler (or nearly so,) steam being
returned into the injection space between the pistons in place of the
water so injected, and provision being made for the discharge of steam
into, and reception or admission of water from a reservoir or reservoirs
in the intervals between the separate injections or forward strokes of
the pistons, and during the period that by the motions of the pistons
communication is shut off between the openings a (into the equalizing
box) and the injection space.
:
•
-
The intended mode of performance of the Invention is as follows:
The reservoir and equalizing box to be of cast iron, and a brass tube, or
pump barrel to lie horizontally within both, with its axial line corres-
ponding with standard water line, no passage from reservoir to box
excepting through the tube, its openings a, and corresponding openings
from tube into reservoir. Both sets of openings to be partly on upper
and partly on lower surface of the tube, the upper one of the second set
serving to discharge the steam into a blow-off pipe passing upwards
within the reservoir to a level above the level at which the feed water in
same is to be allowed to accumulate. An overflow pipe provided.
Exhaust pipe of steam engine is to pass into reservoir. Supply.pump
to be worked from piston rod or otherwise, and the water so pumped to
pass into and at top of reservoir, so that in filling it may condense the
exhaust steam, and the steam discharged from injection space by the
blow-off pipe on the back stroke of the pistons. The piston rod to be
in one, with or coupled in line with and worked from the piston rod of
the engine or otherwise.
The Invention is applicable to low pressure, high pressure, locomotive
and marine boilers.
In further illustration of the manner in which the Invention may
and is to be performed, I will proceed to describe the accompanying
Drawing.
Figure 1 is a plan, and Figure 2 an elevation of an ordinary steam
donkey engine with the improved feed apparatus adapted thereto for
supplying an ordinary steam boiler (not shewn).

page_text: Figures 3 and 4 are transverse sections at the lines 3 and 4 respectively
on plan, the Figure 3 also shewing the position of the water gauge.
All the above Figures are drawn to a scale of one-quarter and the
remaining Figures to a scale of one-half the full size; Figure 5 is a
longitudinal section of the improved apparatus without the donkey;
Figure 5 and 5 are transverse sections of the tube or pump barrel
at the lines 5 and 5' on Figure 5 shewing the openings a and a* herein-
after specially referred to; B is a casting so shaped as to constitute
both the tank or reservoir B* and the equalizing box B²; A, A* is the
pump barrel (of brass) in two parts or lengths fitted by flanges against
corresponding flanges on the casting B one length being within and
the other outside of B and the ends of the enclosed length are in
communication with the above mentioned reservoir and box; D is the
axial line and intended water level; a, a, are the openings from the
pump barrel into the equalizing box a*, a*, other openings from the
same into the reservoir B* ; C, the blow off pipe from injection space of
pump barrel into the reservoir, the pipe being fitted to the one of the said
openings a* which is uppermost on the pump barrel; D*, the overflow
from reservoir; E, the exhaust pipe of donkey passing into the reservoir;
F, F, the valves of the supply pump; G is piston rod worked to and fro by
the donkey passing thence direct to the injecting apparatus and carrying
and actuating the three pistons G, G³, and G³, the first two of which
work in the enclosed length A and the last in the external length A*,
of the tube or pump barrel. These lengths of tube and the piston rod
and pistons should be accurately fitted up in line with each other.
Between the pistons G¹ and G³ is the injection space above referred to.
The piston G' also serves to balance the steam pressure (from boiler)
upon the face next to it of the piston G². The space between G³
and G³, serves to assist the equalizing effect of the chamber B2 with which
it is in connection. Beyond G³ the tube A* serves as a guide for the
piston and the tube itself as "body" of the supply pump for replacing
the evaporated water; F, F, the valves of this pump have been already
mentioned. H, suction pipe, the water being taken from a tank or
any convenient means of supply; I, delivery pipe passing to top of
reservoir B*; K, copper plate within the domed cover B³ of reservoir
for dividing into spray or spreading the water as it falls for the better
condensation of the steam; L, place for an ordinary alarm whistle or
safety valve. B and B are the parts of the equalizing box com-
•

page_text: level.
WU
ULIC бодет
The injecting feed action is as follows:-Supposing the pistons at
the extremity of their stroke in the direction represented by the arrow
in Figure 5, (that is to say, further towards the right hand than repre-
sented in that Figure,) the lower openings a* will readily permit free
ingress of feed water to the injecting chamber befween G¹ and G² from
the reservoir B*, but communication with the equalizing box B³ will be
stopped off. The motion of the pistons will then reverse these conditions
by stopping off the communication from the reservoir and establishing
it with the equalizing box and consequently with the boiler. The
water in the injection space will therefore fall by its gravity through
the openings a on the under side of the tube or pump barrel A, and the
boiler communication B³ to the level of the water in the boiler, or very
nearly so, and be replaced by steam from the boiler entering by the
communication B' and the openings a on the upper side of the tube or
barrel A. On the return of the pistons to the previously described
position the steam will blow off from the injection chamber through the
upper opening a* in the tube or barrel A, and through the blow-off
pipe C into the reservoir, and be therein condensed by the water falling
from above, and a further measure or quantity of feed water be received
into the injection chamber, as already described. The amount of water
to be pumped and forced into the reservoir is greater than required for
the feed, hence the necessity for the overflow pipe D*. And should
any excess of pressure arise from stopping of engine or small demand of
steam from the boiler, the water in the reservoir will become heated
up to boiling point and alarm be given or relief be obtained by the
valve at L. On the other hand when a full quantity of steam is
demanded of the boiler, the temperature of the reservoir will remain low
by reason of the continual renovation of water. The water gauge
represented in Figure 3 may conveniently be placed to communicate
with the two elbows or bends of the communication box though not so
represented in the Drawing.
I would remark that as a modification of the arrangements represented
in the Drawing and herein described; the tube or pump barrel may if
preferred, or if circumstances should so demand, be placed in an inclined
or even in a vertical position, the proper motion to the pistons in either

page_text: of these cases, and in any case whatever, being effected by the donkey
engine, or by any other motive power convenient for the purpose.
Having now described the said Invention and the manner in which
it is to be performed, I claim as of the said Invention, the construction
of feed apparatus with the combination of an equalizing box having
steam and water communications with boiler with a tube or injecting
pump or barrel passing through it with openings out of the tube, pump,
or barrel into the equalizing box above and below the standard water
level, and with pistons arranged to work in the tube, pump, or barrel
to receive feed water from a reservoir into what I term the injection
space between the pistons (or certain of them) and to discharge it into
the equalizing box and thence into the boiler to which the apparatus
may be applied.
And further, I claim expressly the apparatus represented in the
Drawings and herein described and the modifications as to inclined and
vertical positions of tube or pump barrel herein described, and all further
modifications and departures from precise detail as are fairly and
reasonably covered by the nature, features, and spirit of the Invention
as herein-above set forth and exemplified.
In witness whereof, I, the said Augustus de Bergue, have here-
unto set my hand and seal, this Twelfth day of December,
in the year of our Lord One thousand eight hundred and seventy-
оце.
оце.
AUGUSTUS DE BERGUE. "(L.S.)