AN IMPROVED METHOD OF AND APPARATUS FOR FEEDING BOILERS OF ALL STEAM ENGINES WITH LIQUID, WITHOUT THE AID OF THE FORCE PUMP HERE- TOPORE USED
Year: 1858

page_text: LETTERS PATENT to James Bray Pascoe and John Roberts Thomas, of
Chacewater, in the County of Cornwall, Engineers, for the Invention of
"AN IMPROVED METHOD OF AND APPARATUS FOR FEEDING BOILERS OF ALL
STEAM ENGINES WITH LIQUID, WITHOUT THE AID OF THE FORCE PUMP HERE-
TOPORE USED."
"
Sealed the 25th January 1859, and dated the 4th August 1858.
PROVISIONAL SPECIFICATION left by the said James Bray Pascoe and
John Roberts Thomas at the Office of the Commissioners of Patents,
with their Petition, on the 4th August 1858.
We, JAMES BRAY PASCOE and JOHN ROBERTS THOMAS, of Chacewater, in
the County of Cornwall, Engineers, do hereby declare the nature of the said
Invention for "AN IMPROVED METHOD OF AND APPARATUS FOR FEEDING BOILERS OF
ALL STEAM ENGINES WITH LIQUID, WITHOUT THE AID OF THE FORCE PUMP HERE-
TOFORE USED."
The improvement or improved method consists in conveying water or other
liquid from a reservoir near the boiler into the boiler with a self-acting
aparatus, or otherwise. This reservoir is to be of metal, as iron, steel,
copper, brass, silver, or gold, attached to either side or either end, either above
or under the boiler, with pipes, screws, or rivets, or otherwise.
To further exemplify the nature of the said Invention, and to illustrate a
means of carrying the same into effect, I have hereto annexed a Drawing
wherein a denotes a reservoir to contain water or liquid to supply the boiler

page_text: or boilers of steam engines placed upon the boiler (though it might be placed
at either end or at either side of the boiler at any distance); it is connected to
the boiler with pipes, or rivets, or screws, or otherwise. b, a boiler, which
may be of any size or shape, made of iron, copper, brass, steel, silver, or any
other metal; c, end view of boiler and reservoir; d, a pipe conveying water
or liquid from the reservoir into the boilers; e, a pipe, conveying steam from
the boiler into the reservoir on the surface of the water; f, safety valve; g, a
lever in the boiler, connected with the valve spindle at e, which valve opens
and shuts off, when requisite, the communication by the pipe e.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Bray Pascoe and John Roberts Thomas in the Great
Seal Patent Office on the 29th January 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JAMES
BRAY PASCOE and JOHN ROBERTS THOMAS, of Chacewater, in the County of
Cornwall, Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourth day of August, in the year of our Lord
One thousand eight hundred and fifty-eight, in the
year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said James Bray Pascoe and John Roberts Thomas, Her special
licence that we, the said James Bray Pascoe and John Roberts Thomas, our
executors, administrators, and assigns, or such others as we, the said James
Bray Pascoe and John Roberts Thomas, our 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 "AN IMPROVED METHOD OF AND APPARATUS FOR FEEDING BOILERS
OF ALL STEAM-ENGINES WITH LIQUID, WITHOUT THE AID OF THE FORCE PUMP HERE-
TOFORE USED," upon the condition (amongst others) that we, the said James
Bray Pascoe and John Roberts Thomas, our executors or administrators, by
an instrument in writing under our, 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.

page_text: NOW KNOW YE, that we, the said James Bray Pascoe and John Roberts
Thomas, do hereby declare the nature of our 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 :-
The improved method consists in conveying into the boiler the feed water
(or other liquid) from a reservoir placed over the boiler (or in other proximate
position) by a self-acting apparatus or otherwise (the pressure of the steam from
the boiler being used to aid the operation), instead of conveying such water or
liquid to the boiler from a more distant source by the aid of the force pump,
or similar means of impelling the fluid; and this reservoir may be also fed by
condensing the steam from the exhausting passages of the cylinders and
feeding the reservoir with the same. Our reservoir is of metal, such as iron,
copper, or otherwise, and may be attached to either end or side or above (and
we prefer to have it above) the boiler, with pipes, screws, rivets, or otherwise,
as hereafter set forth.
Having thus described the nature of the said Invention, in further describing
such Invention, and in describing in what manner the same is to be per-
formed, we shall resort to the accompanying Drawing, as follows:-
a is a reservoir to hold the feed water, to be placed as shewn in the Drawing,
though it may be placed at either end or side of the boiler, to be connected there-
with by pipes, screws, or rivets, or otherwise, as required (the apparatus being
arranged accordingly; thus, if the reservoir is placed by the side of the boiler,
our apparatus apparatus will be worked with L-angle bob in the pipes connect-
ing the boiler and the reservoir together. b, a boiler of any size and shape, with
tubular fire passages and bridge, or otherwise supplied with water from the
boiler, which boiler is made of any suitable metallic substance; c, c, end view
of the boiler and reservoir; d, a pipe conveying water from the reservoir into
the boiler; e, a pipe conveying steam from the boiler into the reservoir; f, a
safety valve; g, a lever in the boiler; h, a flat float or swimmer in the boiler;
i, i, i, three guage cocks; j, k, l, m, n, o, p, q, eight stop-cocks; r, s, t, u, four
valves; w, w, two pipes conveying water from the reservoir (a) and cistern (2)
into the steam condenser; x, the steam condenser, such condenser being a fan
with cylindrical axles and arms, through which the water is passed from the
pipes w, w, and pours out in all directions as in a shower bath; y is a steam
pipe connected to the boiler, and double below the valve r; z is a rod attached
to one end of the lever and the valve r, which is the main working valve to
let the steam into the reservoir.
No. 1, a small wheel or warra attached to the end of the shaft or axle of
the condenser, or a larger wheel for the purpose of driving it by a chain,

page_text: +
endless belt, or otherwise; 2, a water cistern within another cistern (3), which
is a steam cistern taking the steam from the exhaust passages from the
cylinder, and conveying it into the steam condenser connected (by 4) with
the exhausting passage from the cylinder; 5 is a loop upon the float or
swimmer, and connected to one end of the lever in the boiler with a rod;
No. 6, a pipe connecting cistern 3 to a part of the reservoir a, and conveying
the water.from one to the other; No. 7 is a throttle valve attached to the
rod, and closed by the handle No. 8, (if the valver wants repairing,) to
prevent the steam being let out of the boiler; No. 9 is a bell crank to act on
the lever (9) to draw down the rod z to close the valve 7, if required; No. 10
is a door to be used when repairing, if required, valves r and 7; n, vacuuni
gauge; 12, air escape cock.
To repair valves, close stop-cocks k and q, take off the bonnet, and look at
the valve. n and are stop-cocks for regulating the supply of water to the
condenser; and stop-cock m is to be opened if the steam need to be let out
of the reservoir, and escape through the chimney or funnel.
To use the Invention, first supply the reservoir and boiler with water
through the stop-cock l, and the water cistern (2) through the stop-cock p;
light the fire, raise the steam, work the engine, and drive the condenser,
when the steam from the exhausting passage (No. 4) will return to the steam
condenser, and be returned to water, and will go back to the reservoir through
'the valve t, and then into the boiler, as before described. As the water in
the boiler sinks under the float or swimmer h, it will sink also and lift the
rod at the other end of the lever connected with the valve r, and let the steam
into the reservoir, which will force the water down the pipe d, and into the
boiler through the valve s, until the float or swimmer h is at its proper level,
when the valves and s are closed. When the steam is let into the reservoir,
the valvet will close. The distance of the rise and fall of the water in the
boiler is regulated by the length of the loop upon the float or swimmer in the
boiler marked (5) and by the letter h. The reservoir may be in one, two, or
three compartments, connected by valves, pipes, or otherwise, as required, as
_also_with the exhausting passages from the steam engine and the condenser,
driven in either compartment with a belt, endless chain, or otherwise,-as-
required. In order to render the apparatus self-acting, the proper stop-cocks
must be left open..
Having now described the nature of the said Invention, and in what
manner the same is to be performed, as required by the aforesaid Letters
Patent, we declare that we claim the improved method of conveying water
(or other liquid) from a reservoir placed over the boiler (or in other proximate

page_text: position) by a self-acting apparatus, or otherwise, by the action of the steam
or vapour generated in the boiler without the aid of the force pump heretofore
used, as herein-before set forth, and the apparatus for that purpose herein-
before described.
In witness whereof, we, the said James Bray Pascoe and John Roberts
Thomas, have hereunto set our hands and seals, this Twentieth day
of January, in the year of our Lord One thousand eight hundred
and fifty-nine.
J. B. PASCOE. (L.S.)
J. R. THOMAS. (L.S.)
J. B. PASCOE. (L.S.)
J. R. THOMAS. (L.S.)