IMPROVEMENTS IN APPARATUS FOR FEEDING STEAM BOILERS WITH WATER
Year: 1875

page_text: LETTERS PATENT to William Lloyd Wise, of Chandos Chambers,
Adelphi, in the County of Middlesex, for the Invention of
** IMPROVEMENTS IN APPARATUS FOR FEEDING STEAM BOILERS WITH WATER."
-A communication from abroad by Nicolas Ferdinand Yagn, of
Syzran, in the Government of Simbirsk, Empire of Russia,
Gentleman.
'
Scaled the 25th June 1875, and dated the 26th April 1875.
PROVISIONAL SPECIFICATION left by the said William Lloyd Wise
at the Office of the Commissioners of Patents, with his Petition,
on the 26th April 1875.
I, WILLIAM LLOYD WISE, of Chandos Chambers, Adelphi, in the
5 County of Middlesex, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN APPARATUS FOR FEEDING STEAM BOILERS WITH
WATER," (a communication to me from abroad by Nicolas Ferdinand
Yagn, of Syzran, in the Government of Simbirsk, Empire of Russia,
Gentleman,) to be as follows:-

page_text: steam boilers described in the Specification of Letters Patent granted to
me the Twentieth day of June 1874, No. 2155.
These improvements relate especially to the arrangement of apparatus
represented in Fig. 1 of the Drawings accompanying my aforesaid
Specification.
First. The pipe marked B in the accompanying Drawing of the
apparatus being always during the action of the apparatus warmer than
the pipe C (for steam periodically travels along it while the pipe C is
periodically cooled by water passing from the reservoir R into R)
there may be produced in certain cases between these two reservoirs a
continuous circulation of water along the pipe B upwards, and along
the pipe C downwards. This circulation might sometimes result in
so heating the water in the apparatus as to prevent the condensation
of steam requisite for drawing up water by the pipe A. To
obviate this inconvenience an obturator or valve S is arranged in the
reservoir R₁, quite close to the orifice of the pipe B, such valve being
connected to a float T, and pivoting by an arm or lever on a joint U
fixed to the side of the reservoir R. As the circulation of water
cannot occur when the level in the reservoir R, is below the lowest
point of the orifice of the pipo B, the valve S being then no longer
required automatically leaves the said orifice by following the float T.
Secondly. When the water pipe A communicates with the upper part
of the reservoir R, the cold water meeting the steam which enters this
reservoir by the pipe B condenses it, so that the pressure in this reservoir
may sometimes become less than in the reservoir R. In such case
the water which may have commenced to descend by the pipe O will be
obliged to return to the reservoir R; it will then again commence to
descend to the reservoir R, and the water being thus caused to
reciprocate the working of the apparatus will be irregular. This incon-
venience is obviated by causing the pipe A. to enter the lower part of the
reservoir R, as shewn in the accompanying Drawing.
Thirdly. In order to obviate excessive condensation of steam in
the upper reservoir, which might be caused by spray resulting from
disturbance of the water, a float is placed in this reservoir, the float
being of slightly less diameter than the reservoir R. This float is
provided with a central passage V, so as not to close the orifice of the
pine B.

page_text: Fourthly. At the highest point of the apparatus (for instance at the
point) an orifice is formed which is provided with a cock or a valve
opening outwards. This valve serves for the exit of air whilst the
apparatus is being filled with water. During the action of the apparatus
the orifice x can be completely closed.
The lower end of the reservoir R and the upper end of the
reservoir R, may be separated from the reservoirs, as shewn in the
accompanying Drawing. To make the joint in this case water-tight two
collars or rings of caoutchouc e, e, may be placed between the flanges c, c,
and the ends of the reservoirs, and screwed together tightly by means of
bolts a, a.
That the edges of the ends should not bend it is useful to
The block o,
place a ring between these ends and round the block o.
which is by preference double convex, is of a material which is a bad
conductor of heat, as described in the Specification of my former Patent.
Instead of making the block o separate the space between the two ends
of the reservoirs R, R, and the ring may be simply filled with a
material which is a bad conductor of heat. The pipo B can be made
without longitudinal partitions.
Instead of arranging in the reservoir R, a perforated plate m, as in
Fig. 1 of the Drawings of my former Patent, to divide into thin streamlets-
the water which flows from the pipe C, the end of this pipe may be made
to project into the reservoir R, and be notched, as shewn in the accom-
panying Drawing.
To facilitate cleaning the pipe d an opening y may be formed in the
pipe C opposite the pipe d, which opening may be closed by a screw
plug Y during the working of the apparatus.
Lastly. It has been found that the apparatus works best when 1º, the
diameters of the pipes A and C, are equal; and 2°, when the diameter of
the pipe B is equal at the utmost to three-quarters of the diameter of
the pipe A. or O.
The other parts of the apparatus are the same as before.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Lloyd Wise in the Great Seal Patent
Office on the 25th October 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
LLOYD WISE, of Chandos Chambers, Adelphi, in the County of Mid-
dlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-sixth day of April, in the
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
successors, give and grant unto me, the said William Lloyd Wise,
Her special license that I, the said William Lloyd Wise, my executors,
administrators, and assigns, or such others as I, the said William Lloyd
Wisc, 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 APPARATUS FOR FEEDING STEAM BOILERS WITH WATER," (a
communication to me from abroad by Nicolas Ferdinand Yagn, of
Syzran, in the Government of Simbirsk, Empire of Russia, Gentleman,)
upon the condition (amongst others) that I, the said William Lloyd
Wise, 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 Scal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Lloyd Wise, 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 thereof, and the Drawing therein referred to
(that is to say) :—
This Invention has reference to certain improvements (illustrated in
the accompanying Drawing) upon the self-acting feeding apparatus for
steam boilers described in the Specification of Letters Patent granted to
me the Twentieth day of June 1874, No. 2155.

page_text: These improvements relate especially to the arrangement of apparatus
represented in Fig. 1 of the Drawings accompanying my aforesaid
Specification.
First. The pipe marked B in the accompanying Drawing of tho
apparatus being always during the action of the apparatus warmer than
the pipe C (for steam periodically travels along it, while the pipe C is
periodically cooled by water passing from the reservoir R into R)
there may be produced in certain cases between these two reservoirs a
continuous circulation of water along the pipe B upwards, and along the
pipe C downwards. This circulation might sometimes result in so heating
the water in the apparatus as to prevent the condensation of steam
requisite for drawing up water by the pipe A. To obviate this incon-
venience an obturator or valve S is arranged in the reservoir R quite
close to the orifice of the pipe B, such valve being connected to a
float T, and pivotting by an arm or lever on a joint U fixed to the side
of the reservoir R. As the circulation of water cannot occur when
the level in the reservoir R₁ is below the lowest point of the orifice of
the pipe B, the valve S being then no longer required, automatically
leaves the said orifice by following the float T. Instead of applying the
valve S with a float T the same end may be attained by projecting or
lengthening a little the end of the pipe B in the reservoir R, and
bending this end downwards a little below the orifice of the pipe B. It
will be found useful to place below the orifice of the pipe in the
reservoir R, a perforated plate, the ends of which plate may be fastened
by the bolts a.
Secondly. When the water pipe A communicates with the upper part
of the reservoir R the cold water meeting the steam which enters this
reservoir by the pipe B condenses it, so that the pressure in this reservoir
may sometimes become less than in the reservoir R. In such case
) the water which may have commenced to descend by the pipe C will be
obliged to return to the reservoir R; it will then again commence to
descend to the reservoir R, and the water being thus caused to
reciprocate the working of the apparatus will be irregular. This
inconvenience is obviated by causing the pipe A to enter the lower part
5 of the reservoir R, as shown in the accompanying Drawing.
Thirdly. In order to obviate excessive condensation of steam in the
upper reservoir, which might be caused by spray resulting from dis-
turbance of the water, a float W is placed in this reservoir, the float

page_text: being of slightly less diameter than the reservoir R. This float is provided
with a central passage V, so as not to close the orifice of the pipe B. It
will be evident that one or a couple of perforated plates placed one
above the other at a short distance apart may be substituted for the
float W, said plates being placed in or near the position in which that
float is shown in the accompanying Drawing.
Fourthly. At the highest point of the apparatus (for instance at the
point X) an orifice is formed, which is provided with a cock or a valve
opening outwards. This valve serves for the exit of air whilst the
apparatus is being filled with water. During the action of the apparatus
the orifice X can be completely closed.
The lower end of the reservoir R, and the upper end of the
reservoir R, may be separated from the reservoirs, as shewn in the
accompanying Drawing. To make the joint in this caso water-tight two
collars or rings of caoutchouc e, e, may be placed between the flanges c, c,
and the ends of the reservoirs, and screwed togethor tightly by means of
bolts a, a.
That the edges of the ends may not bend it is useful to
place a ring 6 between these ends and around the block O. This block (0)
which is by preference double convex, is to be of a material which shall
be a bad conducter of heat, as described in the Specification of my
former Patent. Instead of making the block O separate the space
between the said two ends of the reservoirs R, R₁, and the ring b may
be simply filled with a material which is a bad conductor of heat. The
pipe B can be made, as shewn, without longitudinal partitions.
Instead of passing the pipe E into the boiler directly under the centre
of the reservoir R, and placing the valve at the bottom of that
reservoir (arranging it to open downward) the pipe E may be arranged
at the sido, and placed in connection with the central orifice of the
reservoir R, by means of an intermediate double knee pipè, in which
the valve / may be placed in a manner to open upward, the pipe & being
arranged to establish communication between the pipo C and the knee
pipe leading in that case to the pipe E.
Instead of arranging in the reservoir R, a perforated plate m, as in
Fig. 1 of the Drawings of my former Patent, to divide into thin
streamlets the water which flows from the pipe C, the end of this pipe
may be made to project into the reservoir R, and be notched, as shown
in the accompanying Drawing.

page_text: To facilitate cleaning the pipe d an opening y may be formed in the
pipe C opposite the pipe d, which opening may be closed by a screw
plug during the working of the apparatus.
The other parts of the apparatus are the same as described in my
former Specification.
Having described the nature of the said Invention, and explained the
manner of carrying the same into practical effect, as communicated to
me as aforesaid, I hereby declare that under the Letters Patent herein-
before in part recited I claim,—
The combination with the pipo B and reservoir R₁, of the obturator
or valve S and float T, or its equivalent, arranged and operating as
herein-before described for the purpose specified.
I also claim in apparatus as described the combination with the pipo B
and reservoir R of a float W, or its equivalent, substantially as herein-
before described for the purpose specified.
I also claim the combination of parts forming the improved apparatus
for feeding steam boilers with water, constructed, arranged, and operating
as shown in and described with reference to the accompanying Drawing.
In witness whercof, I, the said William Lloyd Wise, have hereunto
set my hand and seal, this Twenty-fifth day of October, in the
year of our Lord One thousand cight hundred and seventy-five.