IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF AIR GAS
Year: 1882

page_text: LETTERS PATENT to Herbert John Haddan, of Kensington, Middlesex for an
invention of IMPROVEMENTS IN APPARATUS FOR THE MANUFACTURE OF AIR
GAS A communication to him from abroad by Daniel Howard Martin of
Ipswich in the Colony of Queensland, Machinist
COMPLETE SPECIFICATION filed by the said Herbert John Haddan at the
Office of the Commissioners of Patents on the 19th September 1882.
HERBERT JOHN HADDAN of Kensington, Middlesex, IMPROVEMENTS IN APPARATUS
FOR THE MANUFACTURE OF AIR GAS a communication to me from abroad by Daniel
Howard Martin of Ipswich in the Colony of Queensland, Machinist
This invention consists of certain improvements in apparatus for the manufacture
of air gas by which I am enabled to produce such apparatus in a compact and
serviceable form capable of cheaply and safely manufacturing large quantities of
gas at a low rate and of automatically regulating such manufacture so that no large
quantity is held in storage.
In this apparatus there are four main parts namely: air suppliers-a gas generator.
or air carburetter-a gas holder, and a gasoline reservoir.
The air suppliers consist of two double acting bellows which supply four over-
lapping currents of air to the gas generator or carburetter.
The gas generator or carburetter is a comparatively shallow chamber underlying
the whole of the other parts of the apparatus.
The gas holder is of ordinary construction and is not of use for its storage
capacity so much as for its automatically regulating the manufacture of gas as it is.
required.
The gasoline reservoir is a chamber connected to the generator by an elbow pipe
in which is a cock. This reservoir may be made removable at will or a permanent
part of the apparatus. Each method has its advantages. If it is made removable
it is more convenient in one sense because it may consist of an ordinary gasoline
drum; and when empty it may be substituted by a full one and on the other hand
A

page_text: if it is made a permanent part of the apparatus a safety pipe may be inserted to
conduct any gases from the top of the gasoline reservoir to a point below the water
in the gas generator.
The supply of gasoline is also controlled by a float valve in the generator and the
supply of air thereto is also controlled by cocks movable by hand and connected by
a rod to the stopping gear. Opening or closing these cocks automatically starts or
stops the working of the machine.
The gas holder to which the stopping gear is also connected rising and falling has
the same effect. The air suppliers are driven by a weight as is well understood.
In order however that this invention may be distinctly understood I will now
refer to the drawings hereto attached in which Figures 1 and 2 show end elevation
and plan of one of the air gas making machines with the gasoline reservoir
removable. Figure 3 longitudinal sectional elevation of the same. Figure 4 shows
on a larger scale the detail of crank shaft from which the airsuppliers are worked
and Figures 5, 6, and 7 plan side view and end view respectively also on a larger
scale of the stopping gear as hereinafter more particularly described. Figures 8
and 9 show full size detail views of the gasoline valve. Figure 10 shows the
gasoline reservoir as constructed when it is a permanent part of the apparatus with
the safety pipe Go in it as hereinbefore described.
A and B are the air suppliers connected by rods A' and B' to the crank shaft C¹.
A³ B² the air pipes leading into the generator D. A³ B³, the cocks connected to
rod E for opening and closing the supply of air to the generator by means of
handle E. F is a pipe for the passage of the air gas to the receiver H from whence
it passes through perforations in discs H' and H² into the gas holder H³. H* is
tank for holding same-H³ is guide for gas holder. I Radius bar fixed to gas
holder. and 12 levers on one pivot Is. To 12 is attached rod or wire I* working
the stopping gear J. G' is pipe for supplying gasoline from its reservoir G to
generator D. G2 is cock therein and G³ float for closing valve G₁ (of the section
shown in Figure 8) on seat G³. H is gas supply pipe to burners. F' is cock in
pipe F, this cock is connected to rod E. On the crank shaft C' is pinion C² and
counterbalance weight C³ carried by arms C4. Said pinion is driven by large spur
wheel K2 on drum shaft K'. K being the drum on which the rope or cord is
wound which after passing over suitable pulleys not shown terminates in a weight
as is well understood. D is a drawing-off cock and D2 a gauge. C is the main
framing. The stopping gear consists of frame J on which is pivotted flat bolt J
having a slot J2 in which spring trigger Js works. A second bolt J4 pivotted under
the frame is actuated by a spring Jo and controlled by projecting piece E² on rod E,
When the machine is working the ends of the arms C4 are free to pass through an
opening Je in the bolt J.
The mode of operation is as follows: The gas holder tank His first filled with
water-then the generator D is supplied with water say to level of dotted line d-F
Figure 3-and then the cock G2 is opened so as to supply the gasoline through
valve G* until that supply is cut off by float G³ at about dotted line d'-same
Figure the level of which will also be seen by the gauge D². The cocks A³ B³
and F are then opened by handle E¹ the air suppliers set to work so as to force air
in successive currents down pipes A2 and B2 which discharge underneath the water-
level through which and through the gasoline above it they ascend becoming
carburetted or converted into air-gas in their passage and finally entering through
pipe F into receiver H is conducted to the burners by pipe H or through per-
forations in the discs H¹ and H2 into the holder H³ to act as a means for regulation
thus When this holder rises up the radius bar I levers I¹ and I and rod I pull
the trigger Js of the stopping gear which springing over moves the bolt J¹ and so
carries the slot Je beyond the line of travel of the arms C which thus stops the
motion of the crank shaft and consequently suspends the operation of manufacturing
gas until the gas holder falls again and then the automatically reverse action of the
trigger Js moving the bolt J' back again allows the arms C to pass through the
slot Jo and so resume the manufacture of gas. When the handle E' is moved to
-

page_text: open the cocks A³, B³, and F¹, the projecting piece E on rod E shoots the second
bolt J out of the line of travel of the arms C thus allowing them to revolve and
the manufacture to proceed. On the reverse movement of the rod E (when
closing said cocks). the projecting piece E2 allows the spring Js to shoot the bolt J*
within the line of travel of arms C4 thus stopping the manufacture of gas as before
described. The motive power therefore cannot revolve the shaft K' when the air
supply to the generator is cut off.
Having thus described the nature of this invention and the manner of performing
same I would have it understood that what I believe to be new and therefore claim
as the improvements in apparatus for the manufacture of air gas is:
First. The combination and arrangement of two double-acting bellows substan-
tially as herein described and explained for the purpose of supplying air to the gas
generator.
Second. So constructing air gas apparatus that the air is supplied under water
above which is the carburetting liquid in what is called the gas generator
substantially as herein described and explained.
Third. The combination and arrangement of the cocks A³ B³ and F¹ with
connecting rod E and handle E' so that all said cocks may be opened or closed by
one motion substantially as herein described and explained.
Fourth. The combination of the levers pivot and rod marked I to I* inclusive
and the stopping mechanism marked from J to Jo inclusive with the radial arm C
for automatically stopping and resuming the manufacture of gas by the rising and
falling of the gas holder H³ substantially as herein described and explained.
Fifth. The combination of the radial arms C and the stopping mechanism marked
from J to Je inclusive with the projecting piece E on rod E to which the cocks A³
and B are connected in the manner and for the purpose substantially as herein
described and explained.
Sixth. The combination of valve G' (of section shown in Figure 8) and its
seat G with the float G³ in the manner and for the purpose substantially as herein
described and explained and as illustrated in the drawings.
Seventh. The combination and arrangement of the several parts of this apparatus
in the relative positions herein set forth and described and illustrated in the
drawings whereby a safe, cheap, efficient and compact air-gas making machine is
produced.
In Witness whereof I, the said Herbert John Haddan have hereonto set my
hand and seal this 19th day of September A.D. 1882.