Improvements in Gas-fired Retort Benches.
Year: 1892

page_text: Date of Application, 2nd Dec., 1892
Complete Specification Left, 4th Sept., 1893-Accepted, 7th Oct., 1893
PROVISIONAL SPECIFICATION.
[Communicated from abroad by RICHARD NICKERSON OAKMAN, the Younger,
of Greenfield, in the State of Massachusetts, United States of America,
Gentleman.]
Improvements in Gas-fired Retort Benches.
1 HENRY EDWARD NEWTON, of The Office for Patents, 6 Bream's Buildings,
Chancery Lane in the County of London, Patent Agent do hereby declare the
nature of this invention to be as follows:-
This invention relates to the carburetting of water gas, and the invention consists
in the provision for heating retorts in which the carburetting medium is produced
and fixed.
66
In the manufacture of water gas, a large quantity of another gas known as
"producer" or generator" gas is necessarily obtained, and this producer gas is
more or less a waste product.
In carrying out this invention, use is made of the old benches of retorts, and an
arrangement of apparatus is adapted thereto, whereby this producer gas may be
employed in heating the retorts for the purpose above named.
The gas is supplied from a holder, under pressure, and air to support combustion
is also supplied under pressure, both gas and air being heated previous to their being
injected into a closed combustion chamber from suitable burners inserted in a fire-
brick block with which the doorway is filled.
The gas is heated in serpentines placed in flues situated below the retorts, and on
opposite sides of the bench. The air is heated in a separate heater, placed
preferably on the top of the bench, and consisting of a serpentine heated by the
waste heat, which, issuing from the gas-heating flues, passes by special flues to the
air heater.
The burners are connected with the gas and air heaters by suitable pipes.
The flames from the combustion chamber ascend between the retorts, and play
upon and around the retorts, which thereby become heated to the proper
temperature, and the waste heat then passes downwards to the gas-heating flues,
and thence to the chimney, or to the air heater, as before mentioned.
Dated this 2nd day of December 1892.
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Gas-fired Retort Benches.
1, HENRY EDWARD NEWTON of The Office for Patents, 6 Bream's Buildings,
Chancery Lane in the County of London, Patent Agent, 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 the carburetting of water gas, and the invention consists
in the provision for heating retorts in which the carburetting medium is produced
and fixed by means of ". producer' or generator" gas, which is more or less a
waste product.
"
66
In carrying out this invention, use is made of the old benches of retorts, and an
arrangement of apparatus is adapted thereto whereby this producer gas may be
employed in heating the retorts for the purpose above named.

page_text: The gas is supplied from a holder under pressure, and air to support combustion
is also supplied under pressure, both gas and air being heated previous to their
being injected into a closed combustion chamber from suitable burners inserted in a
firebrick block with which the doorway is filled.
The gas is heated in serpentines placed in flues situated below the retorts, and on
opposite sides of the bench. The air is heated in a separate heater, placed
preferably on the top of the bench, and consisting of a serpentine heated by the
waste heat, which, issuing from the gas heating flues, passes by special flues to the
. air heater.
The burners are connected with the gas and air heaters by suitable pipes.
The flames from the combustion chamber ascend between the retorts, and play
upon
and around the retorts, which thereby become heated to the proper
temperature, and the waste heat then passes over and downwards, on the outer
side of the retorts, to the gas heating flues, and thence to the chimney or to the air
heater, as before mentioned.
In the accompanying drawings:-
Fig. 1, Sheet 1, is a front elevation of an ordinary gas retort bench with my
invention applied thereto.
gas burners.
Fig. 2 is a longitudinal sectional elevation of the retort bench.
Fig. 3 is a plan, partly in section, of the top of the bench; and
Fig. 4 is a vertical section, shewing the arrangement of the
A A represent the retorts, which, as shewn, are ordinary D retorts, set in the
usual way.
B is the fire place or furnace, which, for the purpose of this invention, is closed
(instead of with an ordinary door) by a fire brick block C, in which the burners D
are fixed in any convenient manner. At the back of the grate, I provide a bridge C',
which is preferably laid dry, and on the grate 1 place slabs C2, so that the fireplace
by these means is made practically air-tight.
E is. an air heater or serpentine, preferably placed on the top of the setting, and
in connection with flues for carrying off the waste heat.
This-air heater is connected by the pipes E' with the burners D. The producer
gas, under pressure, arrives by the pipe G, and after passing through the gas
heater H contained within the flues J, enters the burners D by the pipes G.
The flues J are in connection with the retort chamber of the bench by the
openings J, and also with vertical flues J2.
From these flues J2, the waste heat may pass through the air heater E, or direct
to the chimney K.
The burners D are of injector form, that is to say, the air pipe is inside, and
concentric with the gas pipe, but both air and gas are supplied under pressure.
The gas and air will be fired in the closed fireplace, and the products of
combustion, after doing their duty on the retort, will pass away by flues J J² to the
air heater and chimney, giving up, as they go, their heat, for the purpose of heating
gas and air.
both
Lis the hydraulic main, and L' L' the ascension pipes.
It will be obvious that the air heater may be placed in any other position,
though that shewn is adopted, to avoid delay and expense in construction.
When the retorts are used for carburetting water gas, the water gas and oil will
be introduced into the retorts in any convenient manner, or the oil only may be
introduced into the retort, the water gas being mixed with the oil vapour beyond
the retorts.
Although a single bench is shewn in the drawings, the arrangement will apply
equally well to a double bench.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed (as communicated to me from
abroad), I declare that what I claim is :-
1. The improvements in gas-fired retort benches substantially as herein shewn

page_text: and described, and consisting in making the fireplace air-tight, adapting thereto one
or more burners for burning gas and air under pressure, providing gas and air
heaters, and heating the same by the waste heat from the retort bench, as set
forth.
2. In gas-fired retort benches, the arrangements, in combination, for firing with
gas and air under pressure, and for heating the same, substantially as shewn and
described.
נ...ת
0 1 1
a
1.
1000
NEWTON & SON,
Agents for the Applicant.