Improvements in Locomotives.
Year: 1898

page_text: Date of Application, 30th Aug., 1898-Accepted, 29th Oct., 1898
COMPLETE SPECIFICATION.
Improvements in Locomotives.
We, WILLIAM MELVIN RUSSELL, of 261, West 23rd Street, New York City,
County and State of New York, United States of America, Engineer, and THOMAS
ASENCIO, of 44, Broad Street, New York City, County and State of New York,
United States of America, Merchant, do hereby declare the nature of this inven-
tion, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
-
Our invention relates more particularly to improvements in the construction and
arrangement of the combustion chambers of boilers, and especially to those in
which pulverized fuel is used in connection with locomotives.
The object of the invention is to protect the walls of the combustion chamber
from the action of heat, and to cause the heat that would ordinarily radiate from
the walls of such chamber to heat water for the boiler.
The invention consists in a locomotive having a cab and a boiler having a com-
bustion chamber that is located beneath the boiler and that extends lengthwise
thereof, the walls of which chamber are double and spaced apart to contain water,
in the form of a water-jacket, which water-jacket communicates with the interior
of the boiler, and a pulverizer and blower to supply pulverized fuel to said cham-
ber. In some cases we connect the boiler feed-water pipe with said combustion
chamber jacket, so that the feed-water for the boiler may be heated by the fire
in the combustion chamber before it passes to the boiler.
The invention also consist in the novel details of improvement and the com-
binations of parts that will be more fully hereinafter set forth and then pointed
out in the claims.
.
Reference is to be had to the accompanying drawings forming part hereof,
wherein
Figure 1 is a partly sectional side elevation of a boiler embodying our inven-
tion, and
Figure 2 is a vertical cross section, enlarged, of the boiler and its com-
bustion chamber.
Be-
In the accompanying drawings, in which similar letters of reference indicate
corresponding parts in the several views, the letter A indicates a boiler, which
may be, generally, of well known construction and provided with flues a.
neath the boiler A is a combustion chamber B, which is shown extending longitu-
dinally the full length of the boiler. The walls of the combustion chamber B
are double, as 6, 61, are spaced apart, and constitute a water-jacket or space B¹.
The walls b, b', are preferably tied together by bolts or rivets c, to strengthen them.
Each wall b, b, is preferably continuous and curved at the lower part, and the
upper longitudinal edges of said walls are secured to the outer side of the boiler
to make a water-tight joint. We have shown the edges of wall b, as flanges at d,
and riveted to the boiler at d. The edges of the walls b, 61, where they join the
boiler A, are spaced apart, and the sides of the boiler A, in line with the space B,
Di Q77

page_text: between the plates 6, 61, are provided with a suitable number of apertures D,
which afford communication between the interior of the boiler and the water
space B¹, of the combustion chamber B. The ends of the water space Bt may be
closed by cross plates or by riveting their corresponding ends together.
The water in jacket B' will become heated by the fire in combustion chamber B,
and will also serve to prevent injury to the walls b, bl. In some cases we utilize
the water jacket or space B¹ to heat the feed-water for the boiler, and for this
purpose we connect a pipe E, with wall b¹, and inject the feed water for the boiler
into jacket or space B. The cool water entering jacket or space B will become
heated by the heat that passes to the walls of the combustion chamber, and will
circulate upwards, passing through apertures D into the boiler. Thus the water-
jacket walls of the combustion chamber B may serve the double purpose of pre-
serving the walls b, b', and of heating the feed water.
To protect the inner wall b, of the combustion chamber, from the direct action
of heat we preferably line the inner surface of said wall with fire-brick, or other
suitable fire-proof material F, as shown.
In the arrangement illustrated in the drawing the fire is produced by means of
pulverized fuel and air, and for this purpose we have shown a pulverizer and
blower G, mounted in a cab H, of a locomotive I. The pulverizer and blower G,
is connected with a nozzle G¹, that projects through a wall B2, of the combustion
chamber B, to direct fuel thereinto.
As before stated, the combustion chamber B leads to the forward end A¹, of the
boiler A, and for this purpose the fire-proof wall F is carried up beyond the
boiler, as at F2, forming a channel B³, that communicates with the corresponding
ends a¹ of flues a. At the opposite end of the boiler the ends a², of flues a, com-
municate with a chamber J, that leads to a stack or flue K. The pulverized fuel
and air that are forced into combustion chamber B, from nozzle G¹, are burned in
the form of a flame that extends lengthwise beneath the boiler A, and the heat
and products of combustion pass thence through chamber B, to channel B³, thence
through flues a and chamber K to stack or flue J. Thus the lower part of the
boiler, both its ends, and its interior are exposed to the action of the heat and
heated products of combustion, and the heat from the flame, that would ordinarily
radiate to the walls of the combustion chamber and be lost, is saved, in a great
measure, by heating the water in the jacket B¹, and thus assists in heating the
water in the boiler, whereby an appreciable economy is effected.
At one or both ends of the combustion chamber B, may be located apertures f, g,
having covers or doors h, i, whereby the ashes and residue from the fuel may be
removed. The water-jacket B¹, at one or both ends, may also be provided with
an aperture L', and a cover, door, or valve L, to permit the removal of scale and
deposits. Part of the wall of chamber K may be removable, or in the form of a
door, as at N, and part of the wall of channel 133 may be similarly arranged, as
at M, to permit access to the flues a.
We do not limit our invention to the details of construction shown and
described, as they may be varied without departing from the spirit of our inven-
tion.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. A locomotive having a cab and a boiler, a combustion chamber having two
walls provided with a space between them forming a water-jacket, said space or
jacket having communication with the interior of the boiler, a pulverizer and
blower located in said cab, and a nozzle opening into said combustion chamber and
in communication with said pulverizer and blower, substantially as described.
2. A locomotive having a cab and a boiler, a combustion chamber having two

page_text: walls provided with a space between them forming a water-jacket, said walls
being connected with the boiler, said boiler having one or more openings leading
to the space or jacket between said walls, a pulverizer and blower located in said
cab, and a nozzle connected with said pulverizer and blower, said nozzle being
located in the front wall of the combustion chamber, substantially as described.
Dated this 30th day of August 1898.