IMPROVEMENTS IN AND CONNECTED WITH STEAM BOILERS
Year: 1885

page_text: I LEWIS WALKER LEEDS of 38 Old Jewry in the City of London Heating
and Ventilating Engineer do hereby declare the nature of my said invention for
IMPROVEMENTS IN AND CONNECTED WITH STEAM BOILERS, to be as follows:-
This invention consists more particularly in the peculiar means employed in
mounting and protecting certain parts of boilers, and in providing a combustion
chamber above and around them, all as hereinafter more fully set forth.
The invention may be described with reference to an ordinary tubular boiler,
and by analogy its application. to boilers of other types will be readily understood.
The boiler is supported near the inner end upon the ordinary brick or other
foundation while the part by or in front of the grate bars is supported by balls or
rollers resting on a plate supported by legs or other convenient means. This
arrangement permits expansion and contraction to take place without in any way
disturbing the "setting." Surrounding and above the boiler I form a fire or
combustion chamber provided with baffle plates in such a manner that the flame
and products of combustion will first pass up, around the sides and inner end of
the boiler and at the top will be practically perfected. To aid in the perfect
combustion at this part, a regulated quantity of air may be admitted. The
subsequent course of the heat being to the front and through the tubes to the
chimney or flue. The boiler itself above the water line, I cover with asbestos,
fire brick or other non conductor of heat and this covering I subsequently surround
with iron plates or other good conductors which are attached or touch the boiler
below the water line, so as to carry to it some of the excess heat from the top of
the combustion chamber. If the heat in the combustion chamber is likely to be
excessive one or more steam tubes may be placed between the top of the boiler and
the iron or other casing in order to rapidly carry away the excess heat.
Dated this Savanth dan as

page_text: Improvements in and Connected with Steam Boilers.
I, LEWIS WALKER LEEDS of 38 Old Jewry in the City of London, Heating
and Ventilating 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:-
This invention consists more particularly in the peculiar means employed in
mounting and protecting certain parts of boilers, and in providing a combustion
chamber above and around them, all as hereinafter more fully set forth, reference
being made to the accompanying drawings which form part of this specification and
in which
Fig. 1 represents an end view and—
Fig. 2 a side elevation of a boiler constructed according to my invention which is
described with reference to an ordinary tubular boiler as by analogy its application
to boilers of other types will be readily understood. The boiler is supported near
the inner end upon the ordinary brick or other foundation A, while the part by or
in front of the grate B is supported by balls or rollers C, resting on a plate
supported by legs or other convenient means such as shown in the drawings where
the balls rest on a bridge between the grates. This arrangement permits expansion
and contraction to take place without in any way disturbing the "setting."
Surrounding and above the boiler I form a fire or combustion chamber D, provided
with baffle plates E in such a manner that the flame and products of combustion
will first pass up around the sides and inner end of the boiler and at the top will
be practically perfected. To aid in the perfect combustion at this. part a regulated
quantity of air may be admitted through pipe G. The subsequent course of the
heat being to the front and through the tubes to the chimney or flue F, as
indicated by arrows. The boiler itself above the water line, I cover with asbestos,
fire brick or other non conductor of heat "a," and this covering I subsequently
surround with preferably corrugated iron plates or other good conductors b, the
edges of which terminate in flat plates which are attached to. or touch the boiler
below the water line, so as to carry to it some of the excess heat. For the purpose
of protecting this plate and transmitting to it an evenly distributed heat as also for
assisting in perfecting the combustion, the plate 6 may be covered with fire brick d,
the front of the steam space if the boiler being similarly protected by fire brick or
other refractory material supported by angle irons or brackets g. If the heat in the
combustion chamber is likely to be excessive, one or more steam tubes e may be
placed between the top of the boiler and the iron or other casing in order to
rapidly carry away the excess heat, while for the purpose of keeping the iron
plates b from burning, a circulating pipe f from the water space of the boiler may
be employed as represented.
.
b

page_text: Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is-
-
The improvements described for protecting certain parts of steam boilers, and
in so mounting said boilers as to provide a combustion chamber above and around
them substantially as set forth.
PHILIP M. JUSTICE,
Applicant's Agent.