Improvements in Regenerative Furnaces.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Regenerative Furnaces.
We, EDUARD RIEPE of 7 Wendenmaschstrasse, Braunschweig, Germany, En-
gineer, and GEORG OPPERMANN of 7 Hill Road, Abbey Road, London, England,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to regenerative furnaces and it has for its object to
make the plates forming the air channels, or the flues for the waste gases, with
projections, ribs, teeth, or embossments of any suitable shape, in order to obtain
as large a heating surface as possible and to enable the air and hot gases to come
into intimate contact with the plates.
And in order that our said invention may be properly understood we have
hereunto appended an explanatory sheet of drawings which shows, by way of
example, a regenerative furnace having plates constructed in accordance with
our invention fitted therein.
Fig. 1 is a longitudinal section of the furnace and Fig. 2 is a cross section of
the same.
Figs. 3, 4, 5 and 6 show, in plan and section plates, for lining the flues, made
with projections in accordance with our invention.
As will be seen at Figs. 1 and 2 the air flues 6 of the regenerative furnace are
formed or lined on both the upper and lower sides with plates a having roughened
surfaces formed by making them with projections such as shown in Figs. 3 to 6.
The projections may be of any suitable shape or form, such as triangular or
rectangular (pointed or truncated) pyramids, pointed or truncated cones, prisms
or cylinders, and these projections have for their object to increase the heating
surface to such an extent, and also to allow the travelling air and products of
combustion to come into such intimate contact with the heating surface, as to
thoroughly utilize the same and thus obviate the necessity for causing the air and
hot products of combustion to travel a long and circuitous course. The projec-
tions are arranged in irregular or alternate order, as shown at Figs. 3 to 6, in
order that the current of air passing along the channels 6 may strike against the
projections and be split up or divided by them thereby bringing the air into more
intimate contact with the plates which, of course, as usual, are heated by the
waste products of combustion passing along the flues c.
As will be seen at Fig. 6 the plates a may be made with projections at both
sides. This form of plate is used when the waste products of combustion passing
along the flues c are free from ash (such as water gas, gas from generators which
is stored in gasometers and then supplied to the furnace, lighting gas, natural
gas, liquid-hydrocarbons, and the like). With this arrangement the escaping
products of combustion coming in contact with the projections are caused to part
with a greater amount of their heat than would be the case if the plates were
smooth.
The plates can be built in, in either a horizontal or vertical position, and the

page_text: air and the products of combustion can be conveyed in a horizontal or vertical
direction through the flues built with these plates.
Dated this 2nd day of December 1896.
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.
improvements in Regenerative Furnaces.
We, EDUARD RIEPE of 7 Wendenmaschstrasse, Braunschweig, Germany, En-
gineer, and GEORG OPPERMANN of 7 Hill Road, Abbey Road, London, England,
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 relates to regenerative furnaces and it has for its object to
make the plates forming the air channels, or the flues for the waste gases, with
projections, ribs,, teeth, or embossments of any suitable shape, in order to obtain
as large a heating surface as possible and to enable the air and hot gases to come
into intimate contact with the plates.
And in order that our said invention may be properly understood we have appended
to our Provisional Specification an explanatory sheet of drawings which shows,
by way of example, a regenerative furnace having plates constructed in accordance
with our invention fitted therein.
Fig. 1 is a longitudinal section of the furnace and Fig. 2 is a cross section of
the same.
Figs. 3, 4, 5 and 6 show, in plan and section plates, for lining the flues, made
with projections in accordance with our invention.
As will be seen at Figs. 1 and 2 of the drawings annexed to the Provisional
Specification the air flues 6 of the regenerative furnace are formed or lined on both
the upper and lower sides with plates having roughened surfaces formed by
making them with projections such as shown in Figs. 3 to 6.
a
The projections may be of any suitable shape or form, such as triangular or
rectangular (pointed or truncated) pyramids, pointed or truncated cones, prisms
or cylinders, and these projections have for their object to increase the heating
surface to such an extent, and also to allow the travelling air and products of
combustion to come into such intimate contact with the heating surface, as to
thoroughly utilize the same and thus obviate the necessity for causing the air and
hot products of combustion to travel a long and circuitous course. The projec-
tions are arranged in irregular or alternate order, as shown at Figs. 3 to 6, in
order that the current of air passing along the channels b may strike against the
projections and be split up or divided by them thereby bringing the air into more
intimate contact with the plates which, of course, as. usual, are heated by the
waste products of combustion passing along the flues c.
As will be seen at Fig. 6 the plates a may be made with projections at both
sides. This form of plate is used when the waste products of combustion passing
along the flues c are free from ash (such as water gas, gas from generators which
is stored in gasometers and then supplied to the furnace, lighting gas, natural
gas, liquid-hydrocarbons, and the like). With this. arrangement the escaping
products of combustion coming in contact with the projections are caused to part
with a greater amount of their heat than would be the case if the plates were
smooth.
The plates can be built in, in either a horizontal or vertical position, and the

page_text: air and the products of combustion can be conveyed in a horizontal or vertical
direction through the flues built with these plates.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we consider novel and desire to claim is :-
Regenerative furnaces having their flues lined or built with plates (a) pro-
vided on one or both sides with projections or protuberances, substantially as
and for the purpose herein before set forth.
Dated this 2nd day of September 1897
H. D. FITZPATRICK,
70 Wellington Street, Glasgow, Agent.