IMPROVEMENTS IN SELF-ACTING APPARATUS POR DISCHARGING THE WATER RESULTING FROM THE CONDENSATION OF STEAM
Year: 1862

page_text: LETTERS PATENT to Frederic Ludovicus Henri William Bünger, of 5,
Gloucester Place, Brixton Road, in the County of Surrey, Civil Engineer,
for the Invention of "IMPROVEMENTS IN SELF-ACTING APPARATUS POR
DISCHARGING THE WATER RESULTING FROM THE CONDENSATION OF STEAM."-A
communication from abroad by Bernhard Andreae, of Magdeburg, in
the Kingdom of Prussia.
Sealed the 21st April 1863, and dated the 27th October 1862.
PROVISIONAL SPECIFICATION left by the said Frederic Ludovicus Henri
William Bünger at the Office of the Commissioners of Patents, with
his Petition, on the 27th October 1862.
I, FREDERIC LUDOVICUS HENRI WILLIAM BÜNGER, of 5, Gloucester Place,
Brixton Road, in the County of Surrey, Civil Engineer, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN SELF-ACTING APPARATUS
FOR DISCHARGING THE WATER RESULTING FROM THE CONDENSATION OF STEAM," a
communication to me from abroad by Bernhard Andreae, of Madgeburg, in
the Kingdom of Prussia :-
This Invention consists in adapting to vessels wherein steam is used certain
self-acting mechanism, whereby the water produced by the condensation of
steam is more easily got rid of than has heretofore been the case, at the same

page_text: time preventing the escape of steam. To effect this I place within a pipe in
connection with the steam vessels a tube or pipe of smaller diameter, filled
with water, and closed or solid at one end, whilst at the other end it is closed
by means of a disc or plate of india-rubber or other suitable elastic material,
fixed in any convenient way, so as to make it perfectly water-tight; I place
inside the pipe in connection with the steam vessel a valve seat. The lower
end of this pipe is fixed to a cistern. To the inside of this cistern I attach
a bracket or stop. On the tube or pipe of smaller diameter I attach the valve
or lid. The lower end of this tube, on which the india-rubber disc is fixed,
rests on the bracket or stop above mentioned
-
The nature of these improvements will be better understood by the following
description When the pipe in communication with the steam vessel is
charged with steam the water in the tube or pipe. of smaller diameter is
expanded, which causes the india-rubber or other suitable elastic material
(resting on the bracket or stop) to distend or press outwards, thereby moving
the tube upwards and closing the valve, thus effectually preventing the escape
of steam when water collects in the pipe, from the condensation of steam the
water in the tube (caused by the difference of temperature) contracts, and the
india-rubber disc collapses, causing the tube 'to descend, at the same time
opening the valve and allowing the free egress of the water. The inner tube
or pipe instead of having one end closed by a disc of india-rubber or other
elastic material can be fitted with a plunger or piston fixed to the bracket
or stop.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Frederic Ludovicus Henri William Bünger in: the Great
Seal Patent. Office on the 25th April 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERIC
LUDOVICUS HENRI WILLIAM BUNGER, of 57 Gloucester Place, Brixton Road, in
the County of, Surrey,, Civil Engineer, send greeting. it!
WHEREAS Her most Excellent Majesty Queen, Victoria, by Her. Letters
Patent, bearing-date the Twenty-seventh day of October, in the year of our.
Lord One thousand eight hundred and sixty-two, in the twenty-sixth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Frederic Ludovicus Henri William, Bünger, Her special licence that
I,,the said Frederic Ludovicus Henri William Bünger, my executors, admini-
strators, and assigns, or such others as-l; the said Frederici Ludovicus Henri:

page_text: William Bünger, 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
5 Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS.IN. SELF-
ACTING APPARATUS; FOR DISCHARGING, THE WATER RESULTING FROM THE CONDENSATION
OP STEAM,”; &. communication to me from abroad. by Bernhard Andreae, of
Magdeburg, in the Kingdom of Prussia, upon the condition: (amongst others.)
that I, the said Frederic Ludovicus Henri William Bünger, my executors or
0 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.
I
5
NOW KNOW YE, that I, the said Frederic Ludovicus Henri William.
: Bünger, do hereby declare the nature of the said Invention, and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof, that is to say:
-
*་
My Invention consists in adapting to vessels wherein steam. is' used the
0 employment of certain improved [self-acting mechanism, whereby the, water:
produced by the condensation of steam is more easily got rid of 'than has.
heretofore been the case,; at the same time: preventing the escape of steam.
To effect this I place within a pipe in connexion with the steam vessels a.tube
or pipe of smaller diameter, filled with water, and closed or solid at one end,
5 whilst at the other end it is closed by means of a disc or plate of india-rubber
or other suitable elastic material, fixed in any convenient way, so as to make
it perfectly water-tight. I place inside the pipe in connection with the steain
vessel a valve seat. The lower end of this pipe is fixed to a cistern. To the
inside of this cistern. I attach a bracket or 'stop. On the tube or pipe of
smaller diameter I attach the valve or lid. The lower end of this tube, on
which, the india-rubber disc is fixed, rests on the bracket or stop. above
mentioned.
.
In order to explain my said Invention as completely, as possible, I now,
proceed to described the best means I am, acquainted with for carrying,the,
same; into practical, effect, reference, being had to the. Drawing; hereunto:
cannexed, and to the figures and letters marked thereon, similar. letters of:
reference denote corresponding parts in each Figure, where similar parts
appear or can be seen at each of such said Figures respectively, as
follows
་

page_text: Figure 1 is a transverse vertical section of my improved self-acting appa
ratus for discharging the water resulting from the condensation of steam;
Figure 2 is a horizontal section of the same through the line a, a; Figure 3
is an outside view of this inner tube or pipe, with the valve attached thereto;
Figure 4 shows a plan of the valve from the under side or bottom; Figure 5.
shews a plan or top view of the valve; Figure 6 shews a plan of a box for.
receiving the grit or other impurities contained in the water to be discharged,
as herein-after more particularly described. C is the outer pipe or tube in
communication with the steam vessel; E is the inner tube or pipe filled with
water, to which is attached the valve E; the lower end of the said tube is:
made of a larger diameter or area, to which is attached the disc G, made of
india-rubber, steel, or other suitable elastic material; the said disc is in
contact, with and rests on the stop H; D is a pipe in connection with the well
or chamber A; the said pipe D forms the outlet for the water produced by
the condensation of steam; B is the valve seat, fitted into the tube or pipe.C;
J is a lid to the chamber A, which is secured to the vessel or chamber by
means of bolts and screws. I place under the lid J a packing or disc of india-
rubber, the thickness of which can be varied according to the opening required>
for the valves B for the free egress of the water. The inner tube or pipe F is
guided by means of the valve seat B and the stop H; K is a box in the shape
of a flange, provided with a slide L; the slide L is provided with a piece of
copper wire gauze, which intercepts the impure matter contained in the water.
The advantage of this slide box consists in allowing it to be replaced by a
supplementary one, and thereby getting rid of the accumulated impurities
without unloosening the screws which fix the apparatus, and whilst the appa-
ratus is working.
I now proceed to describe the operations of my Invention. The effect of
the apparatus depends upon the expansion of the water contained within the
pipe F, which, when in contact with steam, presses the india-rubber disc G
outwards, thereby raising the pipe F and closing the valve E, whilst when in
contact with the condensed water it becomes cooler, thereby sinking, and
allowing the water an unimpeded egress. There is a small hole closed by a
screw in the lid J, through which can be observed the working of the
apparatus.
Having now fully described the nature and object of my said Invention of
"Improvements in Self-acting Apparatus for Discharging the Water resulting.
from the Condensation of Steam," together with the best means I am acquainted

page_text: with for carrying the same into practical effect, I would remark, in conclusion,
that I do not intend to limit or confine myself to the precise details of con-
struction, as to form of pipe F or number of valves employed in one apparatus,
as above described and represented, but reserve to myself the right of making
such modifications of the apparatus as are consistent with the character of my
said Invention, which I hereby declare to consist in and I claim an apparatus
of the above construction for the purpose of discharging the water resulting
from the condensation of steam, as herein-before described and represented.
In witness whereof, I, the said Frederic Ludovicus Henri William
Bünger, have hereunto set my hand and seal, this Twenty-fifth day
of April, in the year of our Lord One thousand eight hundred and
sixty-three.
FREDERIC LUDOVICUS HENRI WILLIAM BÜNGER. (L.S.)