Improvements in and connected with Gas Ingot Heating Furnaces for Iron or Steel.
Year: 1890

page_text: Date of Application, 28th Oct., 1890
Complete Specification Left, 10th Feb., 1891-Accepted, 4th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in and connected with Gas Ingot Heating Furnaces
for Iron or Steel.
SAMUEL BAMFORD EVANS, Springfield Villa, Aberavon, Port Talbot, Engineer,
do hereby declare the nature of this invention to be as follows:-
An improved ingot heating furnace, heated by manufactured gas, with a
rectangular chamber divided in half so as to render one independent of each other,
also to dispense with ports (air or gas) as in a steel melting furnace leaving the gas
and air regenerators on a level with the rectangular chambers occupied in heating
the ingots.
Dated this 27th day of October 1890.
COMPLETE SPECIFICATION.
Improvements in and connected with Gas Ingot Heating Furnaces
for Iron or Steel.
I, SAMUEL BAMFORD EVANS, of Springfield Villa, Aberavon, Port Talbot,
Engineer, do hereby declare the nature of the said 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 certain improvements in the arrangement and con-
struction of gas ingot heating furnaces used for heating ingots, slabs or other masses
of iron, steel or other metal.
A furnace constructed in accordance with the present improvements, is repre-
sented on the accompanying sheet of drawings; in longitudinal sectional elevation
(through the plane indicated by the line a-, Fig. 2,) in Fig. 1. In sectional plan
view (on the plane indicated by the lines e-d, ef, Fig. 1,) in Fig. 2. And in
sectional elevation (respectively on the planes indicated by the lines g―h, i-j,
Fig. 1,) in Figs. 3 and 4.
The heating portion of the furnace is constructed with a rectangular chamber 5,
which is divided by a partition 6, extending, vertically, from the bed 7, to the top
of the chamber, and longitudinally from the one end to the other thereof, thus
dividing the chamber into separate adjacent chambers each independent of the
other,
8, represents gas regenerators, and 9, represents air regenerators, such regenerators
being erected on a level with the furnace chamber 5, and so arranged as that the
gas regenerators are nearest the furnace chamber, whereby, the commingling and
combustion of the heated gas and air, which occurs in the entrance channels 10,
leading from the regenerators, (each of which channels is common to both of the
chambers 5,) are brought nearer the position of their utilization, than in existing
furnaces, wherein, the positions of such regenerators relatively to the heating
chamber, are reversed, and wherein, the combustion occurs, to a considerable extent,
in the regenerators, entailing considerable waste and expense.
11, represents the flues leading to the gas regenerators, and 12, represents the
flues leading to the air regenerators. 13, represents the flue leading to the chimney.
14, represents the bed of each chamber 5, and 15, represents slag holes leading
therefrom into the channels 16.
The ingots, slabs or other masses of metal are charged into the chambers 5,
through openings 17, closed by removable doors 18, mounted on wheels 19, running

page_text: on rails 20, and which can be opened and closed, as occasion may require or at the
will of the attendant. By such arrangement, the expense of entirely roofing the
furnace may be avoided.
21, represents the outer walls of the furnace, and 22, represents rails and binding
bolts used in the construction of the furnace.
The improved arrangement has the advantages of being capable of being used as
two independent furnaces, enabling an increased amount of work being turned out
without any corresponding increase of labor, and of dispensing with the necessity
of air and gas ports as usual in existing types of steel melting furnaces, and of
allowing the furnace being used either as a soaking furnace or for heating cold
metals.
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 as my invention is :-
The hereinbefore described improvements in the construction and arrangement
of gas ingot heating furnaces, such improvements consisting in :-
I. The construction of such furnaces with a heating chamber divided by a
partition extending from the bed to the top of the chamber and from end to end
thereof, so as to divide such chamber into independent adjacent chambers, to each
of which the heated gas and air obtain equal access through entrance channels,
common to both such independent chambers, leading from the gas and air
regenerators, substantially as hereinbefore described.
2. The construction of such furnaces with such a divided heating chamber and
with gas and air regenerators on a level therewith.
3. The arrangement of the gas and air regenerators constructed on a level with
the furnace chamber, with the gas regenerators nearest the furnace chamber.
Dated this 4th day of February 1891.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicant.