Improvements in and relating to Steam Boilers.
Year: 1893

page_text: Date of Application, 24th Jan., 1893-Accepted, 25th Feb., 1893
COMPLETE SPECIFICATION.
Improvements in and relating to Steam Boilers.
I, CHARLES WESSLEY HULLINGS, a citizen of the United States, residing at
3953 Ogden Street, Philadelphia, in the County of Philadelphia, in the State of
Pennsylvania, U.S.A., Engineer, do hereby declare the nature of this invention,
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
Figure 1 is a side elevation of a locomotive, partly in section, embracing my
invention.
Figure 2 is a vertical longitudinal section of the boiler and fire box.
Figure 3 is a detail perspective view of the deflector or baffler.
This invention relates to certain new and useful improvements in fire boxes for
locomotive, steain-ship and other boilers, and it consists in the novel construction
and combination of parts, all as hereinafter specified.
The invention more particularly relates to the construction and arrangement of
the arched hollow deflecting or baffler plate, which extends from the top of the
furnace opening, inserted in the doorway inward and downward over the grate;
and further, and the manner in which the water chamber in said baffler plate is
put in communication with the mud leg and water-way of the boiler.
The objects of the invention are first, to provide means for insuring a more
perfect combustion of the fuel, whereby an important saving of the latter is effected;
second, to provide for a more complete boiler circulation; and third, to do away with
the deposit of sediment in the mud legs, by the accomplishment of the first two
objects, and also with the necessity for the spark arrester commonly employed in
locomotives.
In the accompanying drawings, the letter A designates the furnace; B the
furnace opening; C the boiler; D the grate; D' the furnace deflector; E one of
the boiler feed pumps; F one of the two injectors; and G, G¹ the supply pipes leading
from the water tanks of a locomotive, all of said parts being of the ordinary
description.
H designates the improved, transversely-arched deflecting or baffler plate, of
copper or a composition of the same with other metals, or other suitable material,
and which is arranged to project inward and downward to near the normal level of
the fuel on the grate. This plate serves to deflect the air entering the opening B
upon the fire, which thereby causes a more thorough combustion of the particles of
carbon and gases of combustion, which are ordinarily carried off unconsumed.
consumption of these products will necessarily do away with the spark arrester
required on the ordinary locomotive.
A
In said hollow deflector or baffler plate is a water chamber I, which is in
communication with the boiler, and with the mud leg J surrounding the fire box, in
the manner presently described.
On the outer end of the baffler plate is formed a single, upwardly and laterally
projecting flange a, which is arranged to rest against the outside of the furnace
wall A', around the upper portion of the opening B therein.
Communicating with the inner end of the chamber I, is a series of lead
pipes K, K, K', K', which at their forward ends are detachably connected to the
pipes b, b, and c, c, at the rear end of the fire box. Said series of pipes are shown
as being four in number, but I desire it understood that any suitable number may
be employed.
The two central pipes K, K, connect with the pipes c, c, while the outside
pipes K, K', connect with the respective pipes b, b. Said pipes c, c, at their upper
ends connect with the boiler at d, d, as shown, while the pipes b, b, lead into the
mud leg J at the points e, e.

page_text: L, L, are short pipes leading from the central upper portion of the outer end of
the baffler plate, and communicating with the chamber I therein. These pipes are
designed to have detachable connection, by means of suitable unions, as shown, with
short tubes L', L', which lead into the front portion of the boiler, that portion nearer
over the opening in the fire box.
M, M, are other short tubes leading from the central side portions of the outer
end of the baffler plate, and detachably connected by unions with pipes M', M',
which are connected with water supply pipes, as indicated.
N, N, are short tubes leading from the lower side portions of the outer end of the
baffler plate, and detachably connected with pipes O, O, which lead through the
mud leg hole in the end wall of the furnace into the inud leg J.
The pipes K, K, K', K', are connected to the pipes or tubes b, b, c, c, by unions,
the baffler plate being readily detached and replaced.
It will be apparent from the above that there will be a continuous circulation
through the mud lege, boiler, and deflecting or baffler plate, owing to the lead
pipes K, K, K', K', and their connections, and the connections L, L, L', L', N, N,
and O, O. This prevents the baffler plate from being injured by the strong heat to
which it is subjected, and also keeps up a circulation of such character as to prevent
the deposit of any sediment in the mud legs.
The water chamber I therefore is not a mud leg in the ordinary meaning of the
word, but has been so designated for convenience, and in accordance with the
common terminology.
A discharge pipe may be provided for the deflecting or baffler plate, or three
way cocks R¹ may be provided in the pipes b, b, having a discharge into the
ash pan.
The deflector or baffer may be filled by the pump or injector, or the boiler
circulation may be depended upon to fill said plate.
Cocks are provided if necessary in the various pipes and connections, as indicated
in the drawings, by means of which the circulation may be regulated, and the
various pipes closed before detaching the baffler plate. The baffler or deflector, as
above described, may be formed in one integral section, as shown, or it may be
formed in two or more separable sections, which may be joined to each other by
suitable means.
FA
Although I have shown and described the invention as applied to a locomotive
fire box and boiler, it will be understood that it is equally as applicable to steam-
ship and other boilers.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The combination with the boiler, and the fire box having a fuel opening, of
the arched hollow deflector or baffler extending through the upper part of said
opening, a series of lead pipes communicating with the inner portion of said baffler
and detachably connected at their forward ends with pipes communicating with the
mud legs, and with the boiler, and detachable pipe connections between the outer
end portion of said baffler and the boiler and mud legs, substantially as specified.
2. In a steam boiler, the combination with the fire box having the fuel opening
therein, of the deflector or baffler having a water chamber therein, and lead pipes to
and from said chamber, whereby a circulation is maintained therethrough,
substantially as specified.
Dated this 24th day of January 1893.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.