Improvements in Furnaces.
Year: 1891

page_text: Date of Application, 27th Nov., 1891
Complete Specification Left, 29th Aug., 1892-Accepted, ist Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Furnaces.
I, WALTER ROBERT JONES Engineer of No. 1 Via Santa Sabina in the City
of Rome, Italy do hereby declare the nature of this invention to be as
follows:-
This invention relates to furnaces and consists in certain improvements therein
the principal purpose of which is to render them better adapted for burning inferior
combustibles. The improvements are especially suitable for the furnaces used for
the heating of gas retorts and are adapted for the burning of coke dust or other
combustibles of feeble and inferior quality.
The improved furnace comprises two complete furnaces one placed above the
other, but in place of using iron fire bars the bed of each furnace is made with a
narrow groove or slit running longitudinally along the bed of the furnace which is
composed of blocks of fire brick or the like refractory material.
The bed of the
lower furnace may run the whole length of the furnace or may terminate at the
half or two thirds of the distance. Each furnace bed is inclined and the floor of
the ash pit is also inclined to facilitate the removal of the ashes.
When the upper furnace is supplied with coke or fuel desired, the dust and finely
divided parts of this fuel fall through the slit onto the lower furnace bed and are
there burned. The slit in the lower bed is preferably narrower than that in the
upper bed.
The air passing over the lower bed supplying the combustion
thereon, becomes heated and in passing up through the upper furnace greatly assists
the combustion therein.
Dated this 27th day of November 1891.
HERBERT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements in Furnaces.
I WALTER ROBERT JONES, Engineer of No. 1 Via Santa Sabina, in the City
of Rome, Italy 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 relates to furnaces and consists in certain improvements therein
the principal purpose of which is to render them better adapted for burning inferior
combustibles. The improvements are especially suitable for the furnaces used for
the heating of gas retorts and are adapted for the burning of coke dust or other
combustibles of feeble and inferior quality.
The improved furnace comprises two complete furnaces one placed above the
other, but in place of using iron fire bars, the bed of each furnace is made with a
narrow groove or slit running longitudinally along the bed of the furnace which is
composed of blocks of firebrick or the like refractory material. The bed of the
lower furnace may run the whole length of the furnace or may terminate at the half
or two thirds of the distance. Each furnace bed is inclined, and the floor of the
ashpit is also inclined to facilitate the removal of the ashes.
When the upper furnace is supplied with coke or fuel desired, the dust and finely
divided parts of this fuel fall through the slit onto the lower furnace bed and are
there burned. The slit in the lower bed is preferably narrower than that in the
upper bed. The air passing over the lower bed, supplying the combustion thereon,
го
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page_text: becomes heated, and in passing up through the upper furnace greatly assists the
combustion therein.
The annexed drawings illustrate this invention, Fig. 1 being a vertical cross
section on line C D Fig. 2 and Fig. 2 a longitudinal vertical section on line A B
Fig. 1. Fig. 3 is a front elevation and Fig. 4 is a horizontal section on line E F Fig. 2.
HH are the narrow slits aforesaid which run longitudinally along the furnace bed
which is made up of blocks K K of refractory material. The lower furnace is
here shown (Fig. 2) as extending only about two thirds of the distance towards
the back of the furnace, the upper furnace however extends up to the back. The
furnaces are inclined towards the back and the floor of the ashpit is also inclined
at P towards the centre for facilitating the removal of ashes.
The air entering below the lower furnace is heated thereby and passes up through
the slit H to the upper furnace where it is further heated, the flames passing
out at the openings 0, 01, 02, 0³, for heating the gas retorts or for other
employment.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is.
In furnaces for the burning of coke dust and other equivalent low class fuel.
1. Furnace floors having slits H or H¹ in place of furnace grate bars.
2. A double furnace having slits in place of furnace grate bars and arranged for
action substantially as set forth.
3. A double furnace substantially as described having an ashpit floor inclined in
the manner and for the purpose set forth.
Dated this 27th day of August 1892
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.