IMPROVEMENTS IN GAS PRODUCER FURNACES
Year: 1884

page_text: "
I LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Managing Director of the
Universal Inventors and Patentees Financial Company Limited 30 Finsbury
Pavement London E.C. do hereby declare the nature of said invention for
"IMPROVEMENTS IN GAS PRODUCER FURNACES a communication to me from
abroad by W. Bäcker Director of Gas Works Budweis in the Kingdom of Bohemia
in the Empire of Austria and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :---
The object of this invention is the construction of a gas producer furnace which
while utilising the heat to its utmost extent is simple effective and cheap.
It consists of a furnace Fig 2 the fire box B of which is vaulted with fireclay
bricks, partly below the level of the ground and provided with fire clay bank C to
confine the fire at the front of the furnace close under the fire door A.
This fire door is in a sloping position on a level with the ground with common
eccentric lever shuttings above the fire to facilitate the feeding and cleaning thereof
from one spot only.
Fig 1 is a front view and Fig 3 a plan of Fig 2.
The front of the furnace below the door is made of five large slabs or bricks b of
fireclay in the form of stairs the steps being filled level with fireclay on the inner
side so as to form a slope to shoot the fuel down, the bottom slab or brick has an
iron bar a let into it in order to prevent its being injured by the red hot ashes and
slags which are drawn from under when the fire is cleaned.
The vaulted roof of the fire box which is provided with two contiguous rows of
hot air openings slopes slightly to the back to retard the escape of heat as much as
possible.
Hot air is also carried by means of flues & through the back of the furnace to
the heater which is placed above the vaulted roof and contains the retorts which
are placed as near the vaulted roof as possible.
By the influence of this hot air the carbonic oxide gases are transformed into
carbonic acid whereby the fuel is used to its utmost efficiency.

page_text: Pipes e. f. g. conduct steam or water down the front of the furnaces to a point
where it is projected through the draught openings to prevent the formation
of slags &c.
This producer furnace does not require special buildings excavations &c the firing
and cleaning can all be done from the furnace door, the ashes &c can be easily
removed, while the hot air passing through the back of the furnaces increases the
caloric effect of the fuel.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1st The arrangement of gas producer furnaces whereby the heat is utilised to its
utmost extent as shown in the drawings consisting of feeding door A, furnace B
fire bank C, feeding slope b composed of fire bricks the lowest one protected by an
iron bar d and the vaulted roof sloping to the back provided with hot air openings c
and hot air channels d.
2nd The arrangement of pipes e. f. g. for the conveyance of water steam &c to
prevent slagging as before described and illustrated in the drawings.
Dated this 3rd day of November 1884.