Improvements in Regenerative Furnaces.
Year: 1892

page_text: Date of Application, 9th July, 1892
Complete Specification Left, 6th Apr., 1893-Accepted, 6th May, 1893
PROVISIONAL SPECIFICATION.
Improvements in Regenerative Furnaces.
I, EDWARD JAMES DUFF, of 118 Ingleby Drive, Glasgow, in the County of
Lanark, North Britain, Engineer, do hereby declare the nature of this invention to
be as follows, that is to say:
My said invention has for its object by improved construction and arrangement
of the regenerative chambers and cominunicating passages of regenerative furnaces
to render the same more durable than heretofore, and such as to require diminished
expenditure for repairs or renewals.
In carrying out my invention I have the regenerative chambers, which are by
preference of circular form in horizontal section, placed below the reverberatory
furnace with which they are in connection. The regenerative chambers are placed
within the ends of the space covered by the reverberatory chamber but occupy a
greater width than that chamber. At the ends, vertical flues are constructed, these
flues at their upper ends communicating with the ports at the ends of the
reverberatory chamber; and at the level of the tops of the regenerative chambers
communicating with those chambers by horizontal flues. The vertical flues are
continued down below the horizontal flues and are enlarged at their lower parts.
The lower parts of the vertical flues serve for receiving slag, or fused droppings
from the brick work, and dust which can be removed periodically through doors
provided for the purpose.
The regenerative chambers can be covered with comparatively light roofs as the
roofs do not have to support any super-structure. As the hot gases enter the tops
of the reverberatory chambers horizontally they spread over the checker brickwork
in the chambers and are not concentrated on small portions as hitherto. The
bottoms of the. regenerative chambers communicate by flues with the usual valve
apparatus for reversing the currents of gas, air, and used gases.
Dated this Eighth day of July 1892.
EDMUND HUNI,
Applicant's Agent..
COMPLETE SPECIFICATION.
Improvements in Regenerative Furnaces.
I, EDWARD JAMES DUFF, of 118 Ingleby Drive, Glasgow, in the County of
Lanark, North Britain, 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, that is to say :-
My said invention has for its object, by improved construction and arrangement
of the regenerative chambers and communicating passages of regenerative furnaces,
to render the same more durable than heretofore, and such as to require diminished
expenditure for repairs or renewals.
An example of my improved construction and arrangement is shown on three
accompanying sheets of explanatory drawings.
Figure, 1, on Sheet, 1, of the drawings is a longitudinal vertical section ;
Figure, 2, Sheet, 2, is a horizontal section as taken through the reverberatory
chamber and showing parts of the regenerative chambers in plan; and
Figure, 3, Sheet, 3, is a horizontal section as taken through the regenerative
chambers.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.

page_text: At
In carrying out my invention I have the regenerative chambers, G1, G2, A1, A2,
which are, by preference, of circular form in horizontal section, placed below the
reverberatory furnace, B, with which they are in connection. The regenerative
chambers, G1, G2, A 1, A 2, are placed within the ends of the space covered by
the reverberatory furnace, B, but occupy a greater width than that furnace.
the ends, vertical flues, C, are constructed, these flues at their upper ends com-
'municating with the ports, D, at the ends of the reverberatory chamber, B, and at
the tops of the regenerative chambers, communicating with those chambers by
horizontal flues, E. The vertical flues, C, are continued down below the horizontal
flue, E, their lower parts, F, being enlarged, and serving for receiving slag or fused
droppings from the brickwork, and dust, which can be removed periodically through
doors, H, provided for the purpose.
The regenerative chambers, G1, G2, A1, A2, can be covered with com-
paratively light roofs, J, as the roofs do not have to support any superstructure.
As the hot gases enter the tops of the regenerative chambers horizontally by the
flues, E, they spread over the checker brickwork in the chambers, and the entering
streams of the gases are not concentrated on small portions of the brickwork as
hitherto. The bottoms of the regenerative chambers, G1, G2, A1, A2, com-
municate by flues, indicated by dotted lines in Figure, 3, with the usual valve
apparatus, K, for reversing the currents of gas, air, and used gases.
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 :-
In a regenerative furnace, the improved construction and arrangement of the
regenerative chambers and the passages communicating between them and the
reverberatory chamber or furnace, substantially as hereinbefore described and as
shown on the accompanying drawings.
Dated this Fifth day of April 1893.
EDMUND HUNT,
Applicant's Agent.