AUTOMATIC CONDENSED WATER CONDUIT OR STEAM TRAP
Year: 1875

page_text: LETTERS PATENT to Alfred Kusenberg, of Düsseldorf, in the German
Empire, for the Invention of "AUTOMATIC CONDENSED WATER CONDUIT
OR STEAM TRAP.”
Sealed the 21st May 1875, and dated the 24th March 1875.
PROVISIONAL SPECIFICATION left by the said Alfred Kusenberg at
the Office of the Commissioners of Patents, with his Petition, on
the 24th March 1875.
I, ALFRED KUSENBERG, of Düsseldorf, in the German Empire, do
hereby declare the nature of the said Invention for "AUTOMATIC CON-
DENSED WATER CONDUIT OR STEAM TRAP, to be as follows:-
According to this Invention two pipes are bent and joined at their
ends so as to form a double bow, or somewhat resemble the outline form
of the "beam" of a steam engine. At one end they are joined by
tubular socket connection, but at the other end by a closing piece or
casting through which there is no tubular communication; at this latter
end a steam inlet is formed to the upper member of this tubular

page_text: structure, and a condensed water outlet at the lower member of it. At
the middle of the lower member there is a valve chamber with a valve
to shut off the communication between the aforesaid upper steam inlet
and lower condensed water outlet; the spindle of this valve is pendant
and screwed at its lower or outer end where it passes through the
bottom cross bar of a staple, being fastened thereto by nuts so that its
position can be regulated thereby. This staple is clamped round or
otherwise connected to the upper member of the structure, and passes
with its two sides down along outside the lower member. The two ends
of the structure are united by means of a tie bolt.
The action of the apparatus is as follows:-So long as steam is
admitted from the steam inlet the structure is so expanded by the heat
that the upper and lower member are thereby drawn apart, the tie bolt
preventing expansion lengthwise; the valve rod is thus pushed upwards
and the valve kept closed, but as soon as condensed water is admitted
the temperature of which is lower than that of the steam which it is
intended to work with, then the structure contracts, the upper and
lower member of same approaching to one another, and thereby the
valve rod is let down, the valve consequently opened; the condensed
water can then pass off to the outlet for same, the steam following the
condensed water expands the structure again, and the valve closes. By
shifting the position of the valve rod relatively to the staple the appa-
ratus can be set to any required temperature of steam.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Alfred Kusenberg in the Great Seal Patent Office 2
on the 23rd September 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALFRED
KUSENBERG, of Düsseldorf, in the German Empire, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fourth day of March, in the 3
year of our Lord One thousand eight hundred and seventy-five, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Alfred Kusenberg, Her
special licence that I, the said Alfred Kusenberg, my executors,

page_text: administrators, and assigns, or such others as I, the said Alfred
Kusenberg, 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 "AUTOMATIC CONDENSED WATER CONDUIT OR STEAM TRAP,"
upon the condition (amongst others) that I, the said Alfred Kusenberg,
my executors 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 Alfred Kusenberg, do hereby
declare the nature of my said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement, reference being had to the accom-
panying Drawings, and to the letters of reference [marked thereon, that
is to say :-
According to this Invention two pipes are bent and joined at their
ends so as to form a double bow, or somewhat resemble the outline form
of the "beam" of a steam engine. At one end they are joined by
tubular socket connection, but at the other end by a closing piece or
casting through which there is no tubular communication; at this
latter end a steam inlet is formed to the upper member of this tubular
structure, and a condensed water outlet at the lower member of it. At
the middle of the lower member there is a valve chamber with a valve
to shut off the communication between the aforesaid upper steam inlet
and lower condensed water outlet; the spindle of this valve is pendant
and screwed at its lower or outer end where it passes through the
bottom cross bar of a staple, being fastened thereto by nuts, so
that its position can be regulated thereby. This staple is clamped round
or otherwise connected to the upper member of the structure, and
passes with its two sides down along outside the lower member. The
two ends of the structure are united by means of a tie bolt.
And in order that this my Invention may be more fully ascertained,
I will now proceed to describe the same, with reference to the accom-

page_text: panying Drawings, of which Figure 1 is a side elevation of my appa-
ratus; Figure 2, an end elevation; and Figure 3, a plan; Figure 4 is a
vertical cross section through the centre of the apparatus; Figure 5 is a
side view; and Figure 6, a plan section through the staple.
a and b are two slightly bent tubes joined or united at one end by the
tubular socket connection c; d and e are two hollow castings or elbows
attached to the other ends of the tubes; one d for the admission of the
steam, the other e for the escape of the water formed by condensation ;
fis an ordinary globe valve having a smooth stem g; his a yoke or
staple firmly bolted to the tube a by the nuts i and j, and also to the
valve stem by the nuts kand 1; m is a tie bolt or rod, one end of
which is firmly secured to the socket connection c, and the other end
passing through the plate o and secured by the nuts s, which also
regulate the movement of the valve. The plate o fits on projections on
the castings d and e, and thus the whole forms a stiff frame. The
pipes a and b may be in one piece.
I
The action of the apparatus is as follows:-Steam enters through the
elbow d into the tube a, and through socket c into tube b, heating both
tubes, which immediately expand. As the tubes are prevented from
longitudinal expansion or movement by the tie bolt m they spread or
bulge apart, the tube a carrying the yoke h and the valve stem g in one
direction, and the tube and the valvef in the opposite direction, thus
closing the valve and preventing any escape of steam. As soon as con-
densation takes place and the tubes a and b contain water they cool and
contract, the valve then opens and allows the free escape of the water
through the valve to the outlet e. As soon as the steam following the
water enters the tubes they again expand and close the valve. This
operation is repeated automatically as long as there remains any steam.
in the pipes.
This tran being onorated by the variation of best between lent wonday

page_text: If at any time sediment from the pipes should get under the valve
and prevent its closing tightly, then by simply loosening the nuts and
allowing the steam to blow through freely it will clear itself. When
clear tighten the tie bolt m until the steam ceases issuing.
And having thus fully described and ascertained the nature of this
Invention, I declare that I claim,―
Firstly. The combination of the bent pipes, end plate o, tie bolt m,
and valve or valves f, all operating substantially as and for the purposes
set forth.
Secondly. The combination of the bent pipes, end plate o, tie bolt m,
valve or valves f, and yoke h, all substantially as and for the purposes
set forth.
In witness whereof, I, the said Alfred Kusenberg, have here-
unto set my hand and seal, this Ninth day of August, in
the year of our Lord One thousand eight hundred and seventy-
five.
ATDD LT TYTICBANDEDAK