Improvements in and connected with Gas Generators.
Year: 1894

page_text: Date of Application, 4th Apr., 1894-Accepted, 23rd June, 1894
COMPLETE SPECIFICATION.
Improvements in and connected with Gas Generators.
I LÉON BÉNIER of 21 Boulevard Poissonnière Paris in the Republic of
France, Engineer do hereby declare the nature of my invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:―
The present invention relates to an improved construction of gas generators of
the class described in the Specification of Letters Patent granted to me and dated
January 2nd 1893 No. 64 and relates more particularly to the construction of a
rotary grate which may be readily cleaned and suitably cooled also constituting a
boiler and to an apparatus for washing the gas which apparatus is very efficient in
operation.
And in order that my said invention may be fully understood I shall now proceed
to more particularly describe the same and for that purpose shall refer to the
several figures on the annexed sheet of drawings the same letters of reference
indicating corresponding parts in both figures.
Figure 1 is a vertical section taken through the axis of the gas generator and of
the washer and Figure 2 is a vertical section taken through the gas generator at
right angles to Figure 1.
The introduction and mixture of air and steam, the heating of this mixture
before entering the furnace and the introduction of the combustible material have
already been described in the Specification of the hereinbefore referred to Patent.
The
The air enters by the orifice a and the steam by the small holes b which conduct
it into the chamber c where it is kept exactly at atmospheric pressure.
mixture of air and steam traverses the annular space arranged round the furnace
thus being heated and then passes to the grate as indicated by the arrow in
Figure 1.
The grate is formed by a horizontal hollow cylinder d on which are cast or
otherwise fixed circular and vertical vanes or plates f which support the com-
bustible material and constitute the grate. The cylinder d may be turned in its
bearings g by means of a key or the like which may be secured on it at l. The
exterior circumference of the vanes or plates of presents say four hollows mn
corresponding to the four different positions the grate may be caused to take
(Figure 2). After the apparatus has been in use several hours the portion of the
grate situated under the furnace is found to be fouled and choked and a quarter of
a turn may then be imparted to the cylinder and consequently to the grate and thus
a clean portion of the said grate is brought under the furnace. The clinkers
or the like which form between the hollow parts m n are removed by the teeth of
a fixed comb p of steel or other suitable material passing between the plates f.
The cylinder d is hollow and say about half filled with water which keeps the grate
cool and prevents burning. The steam generated therein can be utilized for the
working of the gas generator, pipes conducting it into the small chamber c. In
consequence of this arrangement the generator described in the Specification of my
aforesaid prior Patent is found unnecessary.
The washer is composed of a series of plates superposed one on the other some
of which are perforated towards the mid part v the others having holes x preferably
smaller and disposed at or near the circumference or edges of the said plates and
the plates so perforated are arranged alternately within the cylinder or vessel r.
The gases from the furnace are conducted by the pipes to the upper part of the
washer r and the water for washing and cooling the said gas is also admitted to
the upper part of the said washer by the feed pipe t. The gases and water

page_text: I
traverse the series of plates together from top to bottom first passing through the
central hole of the uppermost plate and then through the small holes of the
next plate and so on until they reach the pipe y which dips about half way down
into the cylinder or chamber q. The water and the solid matters fall to the
bottom of this cylinder or chamber and are removed by the pipe while the gases
washed and cooled pass off by the pipe o.
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 :-
1. In gas generators more especially those of the class described in the
Specification of Letters Patent No. 64 of 1893 a grate provided with circular and
vertical vanes or plates disposed on a horizontal hollow cylinder the said cylinder
constituting a boiler and being capable of being turned on its axis to permit of
the cleaning of the said grate while in use substantially as hereinbefore described.
2. In gas generators more especially those of the class described in the
Specification of Letters Patent No. 64 of 1893 a washer for the gases produced
comprising a series of superposed plates pierced with holes and arranged
alternately so that the gases and the water for washing them are compelled to
pass over and through in such a manner as to free the gases from the solid
matters which they carry with them substantially as hereinbefore described.
3. A gas generator consisting of the combination of a grate formed with circular
and vertical plates or vanes disposed on a horizontal hollow cylinder constituting a
boiler and capable of being turned on its axis to permit of being cleaned by means
of a fixed metal comb and of a washer for the gases produced comprising a series
of superposed plates perforated with holes arranged alternately so that the gases
and the water for washing are compelled to pass over and through in such a
manner as to free the gases from the solid matters which they carry with them
substantially as hereinbefore described.
Dated this 4th day of April 1894.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.