IMPROVEMENTS IN THE CONSTRUCTION OF COKE OVENS, IN THE UTILIZATION OF THE WASTE HEAT THEREFROM, AND IN APPARATUS CONNECTED THEREWITH.
Year: 1872

page_text: LETTERS PATENT to Peter Jensen, of 89, Chancery Lane, in the
County of Middlesex, Engineer and Patent Agent, for the Invention
of “IMPROVEMENTS IN THE CONSTRUCTION OF COKE OVENS, IN THE UTILIZATION
OF THE WASTE HEAT THEREFROM, AND IN APPARATUS CONNECTED THEREWITH.
-A communication from abroad by Julius Erichsen and Jörgen
•
"
PROVISIONAL SPECIFICATION left by the said Peter Jensen at the
Office of the Commissioners of Patents, with his Petition, on the
10th May 1872.
I, PETER JENSEN, of 89, Chancery Lane, in the County of Middlesex,
Engineer and Patent Agent, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF COKE OVENS, IN THE
UTILIZATION OF THE WASTE HEAT THEREPROM, AND IN APPARATUS CONNECTED
THEREWITH (a communication to me from abroad by Julius Erichsen
and Jörgen Georg Maardt, both of Copenhagen, in the Kingdom of
Denmark), to be as follows:-
"

page_text: described a novel construction of coke oven having a hinged or falling
bottom, which on being lowered can conveniently be discharged into a
suitably formed cart placed against it, and not underneath it as heretofore.
I also therein describe the mode of application of the waste heat from a
series of such ovens to the heating of a salt refining pan, one end of it
resting on the series of ovens. Now according to this Invention I
apply coke ovens herein-before named to other evaporating or boiling
or heating purposes, all as herein-after described.
A series of coke ovens constructed and arranged as above described
have the waste heat proceeding from them utilized for heating one or
more steam boilers or other evaporating or boiling apparatus, or drying
stoves or heating apparatus for dwelling houses or other buildings by
hot air or water, or for other heating purposes. For this purpose the
boiler or boilers is or are placed over the series of coke ovens, so that one
end of it or them forms the top of the coke ovens, being there exposed
to the direct heat. The hot gases from the coke ovens after having been
properly mixed with a sufficient quantity of atmospheric air, in order to
ensure a further or perfect combustion, pass by preference into one or
moro tube flues going through the boiler in a straight or other direction;
they then by preference pass on along the sides of the boiler through
suitable flues.
The coke ovens may be worked in such a systematic way as the case
may require; for instance, sometimes it is requisite to work the steam
boiler night and day, while in other cases, say, only 12 out of the 24 hours.
By having a series of comparatively small ovens of this description a
good quality of coke is produced with little labour, and perfect control
obtained over the utilization of the waste heat therefrom.
In some cases it may be advisable at certain times to let part of the
heat escape without heating the steam boiler, and this is accomplished
by suitable flue and damper arrangement.
In order to utilize part of the waste heat for producing lighting gas a
retort of suitable dimensions may be placed above the fuel in the coke
oven, and by preference resting on the front and back wall of the oven.
The gas may be utilized for ordinary lighting purposes, or for driving
a gas engine. The retort may be charged with coals or with crude
petroleum, or other suitable hydrocarbons.

page_text: For burning limestone, or other similar purposes, one or more lime
kilns are arranged on and forming the top or crown of the coke ovens,
and the bottom of the lime kiln then consists either of a grating or of a
perforated diaphragm made of suitable refractory materials. The air
necessary for the further or complete combustion of the gases as they
come from the fuel in the coke oven is properly admitted in suitable
quantity above the fire-brick arch or crown of the coke oven which
forms the bottom of the lime kiln.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said Peter Jensen in the Great Seal Patent Office on
the 9th November 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PETER
JENSEN, of 89, Chancery Lane, in the County of Middlesex, Engineer
and Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Tenth day of May, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Peter Jensen, Her special licence
that I, the said Peter Jensen, my executors, administrators, and
assigns, or such others as I, the said Peter Jensen, my executors,
administrators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN THE CON-
STRUCTION OF COKE OVENS, IN THE UTILIZATION OF THE WASTE HEAT THEREFROM,
AND IN APPARATUS CONNECTED THEREWITH" (a communication to me from
abroad by Julius Erichsen and Jörgen Georg Maardt, both of Copen-
hagen, in the Kingdom of Denmark), upon the condition (amongst
others) that I, the said Peter Jensen, my executors, or administrators,
by an instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause

page_text: the same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Peter Jensen, 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:-
In the Provisional Specification accompanying an application for
Letters Patent made by me on the 15th April 1872, No. 1122, I havo
described a novel construction of coke oven having a hinged or falling
bottom, which on being lowered can conveniently be discharged into a
suitably formed cart placed against it, and not underneath it as heretofore.
I also therein describe the mode of application of the waste heat from a
scries of such ovens to the heating of a salt refining pan, one end of it
resting on the series of ovens. Now according to this Invention I apply
the coke ovens herein-before named to other evaporating or boiling or
heating purposes, all as herein-after described.
A series of coke ovens constructed and arranged as above described
have the waste heat proceeding from them utilized for heating one or
more steam boilers, or other evaporating or boiling apparatus or drying
stoves or heating apparatus for dwelling houses or other buildings by
hot air or water, or for other heating purposes. For this purpose the
boiler or boilers is or are placed over the series of coke ovens, so that
one end of it or them forms the top of the coke ovens, being there
exposed to the direct heat. The hot gases from the coke ovens after
having been properly mixed with a sufficient quantity of atmospheric
air, in order to ensure a further or perfect combustion, pass by preference
into one or more tube flues going through the boiler in a straight or
other direction; they then by preference pass on along the sides of the
boiler through suitable flues.
The coke ovens may be worked in such a systematic way as the case
may require; for instance, sometimes it is requisite to work the steam
boiler night and day, while in other cases, say, only 12 out of the 24 hours.
By having a series of comparatively small ovens of this description a
good quality of coke is produced with little labour, and perfect control
obtained over the utilization of the waste heat therefrom.
In some cases it may be advisable at certain times to let part of the
heat escape without heating the steam boiler, and this is then accom-
plished by suitable flue and damper arrangement.

page_text: In order to utilize part of the waste heat for producing lighting gas a
retort of suitable dimensions may be placed above the fuel in the coko
oven, and by preference resting on the front and back wall of the oven.
The gas may be utilized for ordinary lighting purposes, or for driving a
gas engine. The retort may be charged with coals or with crudo
petroleum, and other suitable hydrocarbons.
For burning limestone, or other similar purposes, one or more lime
kilns are arranged on and forming the top or crown of the coke ovens,
and the bottom of the lime kiln then consists either of a grating or of a
perforated diaphragms made of suitable refractory materials. The air
necessary for the further or complete combustion of the gases as they
come from the fuel in the coke oven is properly admitted in suitable
quantity above the fire-brick arch or crown of the coke oven which
forms the bottom of the lime kiln.
Although I have not illustrated this Invention by means of Drawings,
it will nevertheless be easy for people skilled in the various aforesaid
practical branches for which this Invention may be applied to arrange
the coke ovens constructed as aforesaid for the various aforesaid pur-
poses, in the manner above indicated with reference to the application of
said coke ovens to evaporating, boiling, and heating purposes.
In witness whereof, I, the said Peter Jensen, have hereunto set
my hand and seal, this Ninth day of November, in the year of
our Lord One thousand eight hundred and seventy-two.