IMPROVEMENTS APPLICABLE TO RAIL, TRAMWAY, AND ROAD LOCOMOTIVES
Year: 1869

page_text: LETTERS PATENT to Thomas Page, of the Adelphi, in the County
of Middlesex, Civil Engineer, for the Invention of "IMPROVEMENTS
APPLICABLE TO RAIL, TRAMWAY, AND ROAD LOCOMOTIVES."
Sealed the 9th October 1869, and dated the 17th April 1869.
PROVISIONAL SPECIFICATION left by the said Thomas Page at the
Office of the Commissioners of Patents, with his Petition, on the
17th April 1869.
I, THOMAS PAGE, of the Adelphi, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS. APPLICABLE TO RAIL, TRAMWAY, AND ROAD LOCOMOTIVES," to
be as follows:-
My Invention relates to improvements in locomotive engines by
meaus of which a quiet blast is obtained, so as to render them adaptable
more especially for tramway and road locomotion, while the consumption
of the smoke and economy in fuel is also effected.
[Price 8d.1

page_text: In carrying out my Invention I provide a tank or receiver placed in a
horizontal position above the boiler, and secured thereto in any suitable
manner. This tank, which is divided into compartments by partitions
or otherwise, or traversed by tubes, contains the water to be supplied to
the boiler. These tubes open into a smoke box at either end, and the
flue tubes of the boiler also communicate with the forward or smoke box
proper in the usual manner. The products of combustion, after leaving
the flue tubes of the boiler, are passed through the tubes or divisions of
the tank to the rear smoke box for heating the water contained in said
tank in their passage.
I also cause the exhaust steam from the cylinders
to be partially condensed by passing it through the tubes or divisions of
the feed water tank, together with the products of combustion, by pro-
viding an exhaust chamber of suitable form corresponding with the
tank. This chamber receives the exhaust steam direct from the cylinder,
and is fitted with a number of nozzles, one of which projects slightly
within each of the tubes or compartments of the feed water tank, space
being allowed for the passage of the smoke and other products, thus
creating the necessary draught; or the steam and products of combustion
may be passed through separately if desired. From the rear smoke box
the exhaust steam and products of combustion pass together into the
ash-pit, which is made double, and is provided with openings through
which the steam and products of combustion pass between the fire-bars
into the fire. A small quantity of fresh air is also admitted at same
time to maintain the combustion and assist in the consumption of the
products of combustion. I also employ one or more fans mounted in the
pipes connecting the smoke box with the double ash-pit, and operated
in any suitable manner, to assist in the production of the draught
required, and force the smoke and uncondensed steam through the fire.
An air-tight throttle valve is also used in connection with the pipes
connecting the smoke box and ash-pit for the purpose of regulating the
draught. I may, if desired, place similar tanks to that before described
beneath the tender and carriages, the several tanks being connected by
flexible tubes, through which tauks I pass the exhaust steam previous
to its being passed into the ash-pit as before described. Provision is
also made for the return of the water of condensation to the tender tank.
Instead of filling the above-named tanks with water and passing the
steam through the tubes, the water may be dispensed with by passing
the steam into the tanks and allowing cold air to pass through the
tubes or divisions. A chimney may be provided on the smoke box next

page_text: the fire-box, placed preferably in a horizontal position, to be used when
required, when getting up steam for instance.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Page in the Great Seal Patent Office
on the 16th October 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
PAGE, of the Adelphi, in the County of Middlesex, Civil Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of April, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Thomas Page, Her special licence
that I, the said Thomas Page, my executors, administrators, and
assigns, or such others as I, the said Thomas Page, 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
APPLICABLE TO RAIL, TRAMWAY, AND ROAD LOCOMOTIVES," upon the condition
(amongst others) that I, the said Thomas Page, 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 Thomas Page, 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 Sheet of Drawings
hereunto annexed, and to the letters and figures marked thereon (that
is to say)
My Invention relates to improvements in locomotive engines by

page_text: means of which a quiet blast is obtained, so as to render them adaptable
more especially for tramway and road locomotion, while the consumption
of the smoke and economy in fuel is also effected.
In carrying out my Invention I provide a tank or receiver placed in
a horizontal position above the boiler, and secured thereto in any
suitable manner. This tank, which is divided into compartments by
partitions or otherwise, or traversed by tubes, contains the water to be
supplied to the boiler. These tubes open into a smoke box at either
end, and the flue tubes of the boiler also communicate with the forward
or smoke box proper in the usual manner. The products of combustion
after leaving the flue tubes of the boiler are passed through the tubes
or divisions of the tank to the rear smoke box for heating the water
contained in said tank in their passage. I also cause the exhaust steam
from the cylinders to be partially condensed by passing it through the
tubes or divisions of the feed water tank, together with the products of
combustion, by providing an exhaust chamber of suitable form corre-
sponding with the tank. This chamber receives the exhaust steam
direct from the cylinders, and is fitted with a number of nozzles, one of
which projects slightly within each of the tubes or compartments of
the feed water tank, space being allowed for the passage of the smoke
and other products, thus creating the necessary draught: or the steam
and products of combustion may be passed through separately if desired.
From the rear smoke box the exhaust steam and products of com-
bustion pass together into the ash-pit, which is made double, and is
provided with openings through which the steam and products of
combustion pass between the fire-bars into the fire. A small quantity
of fresh air is also admitted at same time to maintain the combustion
and assist in the consumption of the products of combustion.
also employ one or more fans mounted in the pipes connecting the
smoke box with the double ash-pit, and operated in any suitable manner,
to assist in the pro luction of the draught required, and force the
smoke and uncondensed steam through the fire. An air-tight throttle
valve is also used in connection with the pipes connecting the smoke
box and ash-pit for the purpose of regulating the draught.
I may,
if desired, place similar tanks to that before described beneath the
tender and carriages, the several tanks being connected by flexible
tubes, through which tanks I pass the exhaust steam previous to its
being passed into the ash-pit, as before described. Provision is also
I

page_text: Instead of mining the above-named tanks with water and passing the
steam through the tubes, the water may be dispensed with by passing the
steam into the thinks and allowing the cold air to pass through the 'tubes
or divisions.A chimney may be provided on the smoke box next the
fire box, to be used when required, when getting up steam for instance.
?
I e
-dest
DESCRIPTION OF DRAWINGS.
Figure shows in elevation a central longitudinal section of a rail or
tramway locomotive constructed according to my Invention; Figure 2
is a transverse section of the same taken partly on line 1, 2, and partly
on line 3, 4, Figure 1.
A is the feed water tank or receiver, which I place horizontally above
the boiler B and secure it rigidly thereto. Tank A is traversed lon-
gitudinally by tubes C, or instead of tubes longitudinal partitions may
be 'employed, dividing the tank into passages or compartments, which
tubes (or passages) open into smoke boxes D and E at either end.
The flue tubes F of the boiler also communicate with the forward
smoke box 1 as usual. G is the exhaust chamber placed within smoke
box D in front of the feed water tank A, with which it corresponds in
form. This chamber G is furnished with a series of nozzles H corre-
sponding in number to the tubes or passages C, within each of which
one of said nozzles H slightly projects, as seen in Figure 1. The
exhaust steam passes through tubes I, Figure 2, directly from the
cylinders into the chamber G, whence it escapes through nozzles H
into the tubes or passages C. The products of combustion after leaving
the flue tubes F are caused to pass through tubes C by the draught
created by the escape of the steam from nozzles H, between which and
tubes C space is allowed for the passage of said products. The exhaust
steam and products of combustion are thus caused to pass together
through tubes or compartments C to the rear smoke box E, thereby
heating the feed water contained in tank A in their passage. K is the
ash-pit, which is double, being partially divided into upper and lower com-
partments, by a horizontal plate or false bottom x, the lower space or
compartment communicating with smoke box E by means of tubes L,
through which the said products and exhaust steam are conducted to the
fire, a small quantity of fresh air being also admitted through holes K¹
to maintain the combustion. One or more fans M are also employed for

page_text: the purpose of assisting in the production of the draught required, and
forcing the exhaust steam and products. of combustion through the firẻ.
This fan-M is mounted to rotate within tubes L, and is operated by means
of a friction wheel N-keyed on the shaft of the fan, and placedrin-frie
tional contact with the rear axle of the locomotive, as seen, by which it
is driven, an air-tight throttle valve O being provided intube L for the
purpose of regulating the draught. Instead of passing the whole of the
steam and products between the fire-bars into the fire I may cause a
portion of the same to pass over the fire by connecting the ash-pit with
the upper part of the fire-box by means of a tube P, as seen. A
telescopic or other chimney R may be provided in the smoke box E, to
be used if required, which when not in use is closed by means of a
suitable damper or cover. Tanks similar to tank A may be provided
beneath the tender and carriages, through which the steam and products
may be conducted from smoke box E previous to their being passed into
the fire, instead of conveying them direct to the ash-pit, as above
described. By this means a larger amount of feed. water may be heated
if required, and the exhaust steam condensed, the water of condensati
being returned to the tender tank by its own gravity, the relative, heignt
of the several tanks being varied to effect this object, or it may be
returned in any suitable manner.
88
to tod
Having described the nature of my Invention; and the manner of
performing the same, I hereby declare that what I claim as my Invention
to be protected by the herein-before in part recited Eetters Patent is,
the improvements in rail, tramway, and road locomotives, substantially
as shown and described, and for the purposes set forth. It'
100
In witness whereof, I, the said Thomas Page, have hereunto set
my hand and seal, this Fifteenth day of October, in the year of
our Lord One thousand eight hundred and sixty-nine.
0.8043