Improvements in Furnaces.
Year: 1892

page_text: Date of Application, 4th Jan., 1892
Complete Specification Left, 1st Oct., 1892-Accepted, 5th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Furnaces.
I, EDWARD BROOK, of 41 Spring Street, Huddersfield, in the County of York,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention has reference to an improved construction of furnace suitable for
heating metal articles such as billets, ingots, bars, plates, and the like and has for
its object the more efficient and economical heating of such articles.
To this end the furnace is constructed with a gas-producer arranged to form
part of the structure; with steam jet apparatus, flues, and passages whereby a
portion of the hot waste products of combustion can, as they leave the furnace, be
passed (with or without admixture of air), through the fuel in the said gas producer
for re-conversion into combustible gases; and with air ports and passages in
connection with a chamber placed under the bed of the furnace and into which air
is forced by any suitable means as for example a steam jet apparatus, the arrange-.
ment being such that combustible gases as they leave the gas producer on their way
to the combustion chamber of the furnace are met by air under pressure issuing
from the said air ports above the stream of combustible gas.
.
To effect heating of the billets, bars or other articles in a more advantageous
manner than heretofore, I construct the floor or hearth of the furnace chamber with
ridges to allow of the passage of a portion of the flame and hot gases underneath
the billets or other articles resting thereon.
The gas producer is or may be constructed with a solid fire-brick floor and is
provided with a brick arch or arches for the distribution of the incoming hot gases
amongst the fuel; a small opening (or openings) that is normally closed when the.
furnace is at work, being formed through the outer wall so that access may be readily
obtained to the space underneath the said arch or arches for the partial removal of
ashes, and for admission of air when starting the furnace, I also provide one or more.
openings or doorways for withdrawing the ashes and clinkers.
The fuel may be fed into the gas producer through one or more openings placed
near the top at one or more sides instead of through the top as is usually done, the
said opening or each opening if more than one be used, being closed by a swinging.
lid to prevent escape of gases.
Dated this 4th day of January 1892
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.Č., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Furnaces.
I, EDWARD BROOK, of 41 Spring Street, Huddersfield, in the County of York,
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 has reference to an improved construction of furnace suitable for
heating metal articles, such as billets, ingots, bars, plates, and the like and has for
its object the more efficient and economical heating of such articles.
To this end the furnace is constructed with a gas-producer arranged to form part
of the structure; with steam jet apparatus, flues, and passages whereby a portion of
the hot waste products of combustion can, as they leave the furnace, be passed (with:
I
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page_text: contact with each other are preferably machined so as to cause the door to swing
freely and at the same time to make a practically gas tight joint, and the said faces
are formed at a slight angle from the vertical as shewn in Fig. 5, for the purpose
of causing the door to bed upon the frame and thus ensure a gas tight joint being
made. This is rendered necessary by reason of the furnace working under a slight
pressure.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A non-regenerative gas furnace constructed with a gas producer, flues, passages
and steam jet apparatus substantially as described the arrangement being such that
a portion of the waste products of combustion are caused to pass through the fuel
and a secondary supply of air under pressure is caused to meet the gases issuing
from the gas producer as set forth.
2. A furnace constructed with a gas producer having a brick arch such as 11 for
the distribution of the incoming blast and with an opening 12 formed in the outer
wall of the furnace whereby air can be admitted to the fire, or ashes be removed,
substantially as described and shown.
3. My improved non-regenerative gas furnace constructed, arranged and operating
as described with reference to and shown in the drawings.
4. In a furnace substantially such as hereinabove referred to the charging opening
with inclined face and pivoted door as described and shewn.
£ October 1802
E. BROUD.
W. Lloyd Wise,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.