Improvements in Gas Producers.
Year: 1897

page_text: Date of Application, 9th Mar., 1997
Complete Specification Left, 6th Sept., 1897-Accepted, 20th Nov., 1897
Date of Application, 9th Mar,, 1097
Complete Specification Left, 6th Sept., 1897-Accepted, 20th Nov., 1897
Improvements in Gas Producers.
We, WILLIAM CLIMIE, of 9 McCroft Buildings, Lennoxtown, in the County of
Stirling, Engineer, and ARCHIBALD WATSON, JUNIOR, of Myrtle Bank, Bellshill, in
the County of Lanark, Steel Works Manager, do hereby declare the nature of
this invention to be as follows:-
This Invention has for its object to provide a gas producer of improved con-
struction and designed to generate the steam necessary for injection into the coal
or other fuel to be gasified.
The improved gas producer is composed of an inner and an outer casing of iron
or steel plates built in cylindrical form somewhat like a vertical steam boiler,
the space within the inner shell being adapted to contain the fuel to be gasified
and that between the casings being filled with water to a point above the upper
end of the inner shell. At the lower end a fire grate of improved construction
is formed by a water jacket or double casing communicating with the water space
of the structure and composed of horizontal plates suitably stayed and connected
together by short tubes passing through the water jacket and expanded into the
top and bottom plates thereof. These tubes serve to admit air to maintain com-
bustion of the coal or other fuel and also provide for the discharge of ash and
prevent the formation of clinker on the bottom. Underneath these tubes are fitted
a series of jet nozzles protruding from a steam casing or receiver to which steam
is supplied from the steam space of the double casing forming the enclosing walls
of the producer chamber. Steam is blown as required through the jet nozzles and
directed through the tubes in the bottom or fire grate of the producer.
Doorways are provided in the sides of the producer for access to the fire grate;
and in the top a gas ascension pipe and a fuel feeding hopper provided with a
weighted or self-closing valve are provided and carried through the steam space.
Dated this 8th day of March 1807

page_text: the County of Lanark, Steel Works Manager, 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 has for its object to provide a gas producer of improved con-
struction and designed to generate the steam necessary for injection into the coal
or other fuel to be gasified, and also to supply steam for actuating the pokers and
for other purposes.
The Invention is illustrated by the accompanying drawings, Figure 1 being a
vertical section, Figure 2 a plan, and Figures 3 and 4 horizontal sections on the
lines - and y-y respectively.
The improved gas producer is composed of an inner casing A, and an outer
casing B of iron or steel plates built in cylindrical form somewhat like a vertical
steam boiler, the space within the inner shell A being adapted to contain the fuel
to be gasified, and that between the casings being filled with water to a point
above the upper end of the inner shell. At the lower end a fire grate of improved
construction is formed by a water jacket or double casing communicating with
the water space of the structure, and composed of horizontal plates C, D, suitably
stayed and connected together by short tubes E passing through the water jacket
and expanded into the top and bottom plates thereof. The outer and inner casings
are further connected together by a central tube A¹, which tube A¹ admits of the
passage of the water from the bottom to the top of the water space thereby increas-
ing the circulation of the water necessary for the generation of steam whilst
serving as a stay between the bottom of the fuel container and the top thereof.
The tubes E serve to admit air to maintain combustion of the coal or other fuel,
and also provide for the discharge of ash and prevent the formation of clinker
on the bottom C, which object is further attained by the action of a series of
pokers E passing upwards within the tubes, their lower ends being secured to a
horizontal plate E. The plate E³ is divided centrally, each portion being con-
nected by two short rods to beam levers E secured upon a shaft Es beneath
the fire grate, said shaft receiving its motion from any source of power, and com-
municating a vertical movement to each portion of the horizontal plate E³ in
turn, in order to cause the pokers E' to break up or prevent the formation of
clinker. Underneath the tubes E, or as shewn beneath separate tubes F, are
fitted a series of jet nozzles G protruding from a steam casing or receiver to which
steam is supplied from the steam space of the double casing forming the enclosing
walls of the producer chamber. Steam is blown as required through the jet
nozzles G, and directed through the tubes F in the bottom or fire grate of the
producer.
Doorways H are provided in the sides of the producer for access to the fire
grate C, and are preferably formed as shewn. These doorways are surrounded by
a frame H¹ secured to the outer casing B to which frame an arm I is hinged, the
lower end of the arm being secured by a loop Hª hinged to the frame. The arm I
carries a spindle J having a lever arm J', and an eccentric K. formed on it, which
eccentric when the lower end of the arm I is surrounded by the loop H³ is brought
to bear against the cover L of the doorway H in order to tighten said cover,
which is carried by the arm I, against the frame H. When it is desired to
remove the cover L, the eccentric K is released by turning the hand lever J',
the loop H³ turned down, and the arm I swung outwards. In the top of the pro-
ducer a gas ascension pipe M, and fuel feeding hoppers N furnished with weighted
or self-closing valves are provided, and carried through the steam space.
The above described construction of the gas producer admits of the producer
being wrought continuously thereby saving the waste in fuel consequent in burn-
ing off for cleaning purposes, as is common in other producers, this system of
continuous working preventing the possibility of clinker forming within the fuel
space.

page_text: Having now particularly described and ascertained the nature of our said Inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:-
The improved gas producer constructed and arranged substantially as described
with reference to the drawings annexed.
Dated this 4th day of Santember 1897
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents,
62 Saint Vincent Street, Glasgow, Agent for the Applicants.