An Acetylene Gas Lamp or Generator.
Year: 1897

page_text: Date of Application, 27th Mar., 1897
Complete Specification Left, 22nd Nov., 1897-Accepted, 19th Feb., 1898
An Acetylene Gas Lamp or Generator.
I, FREDERICK HUGH SMITH, The Limes, Dunblane, N.B., Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to an acetylene gas lamp or generator, for all purposes
where a light is required or for the supply of gas for motive power or other
purposes.
I employ an upright cylinder, the lower part of which is for the generation of
the gas and the upper part is for the water. The gas chamber is made gas tight
from the rest of the cylinder. The said upper part of the cylinder is divided into
two chambers. The water is poured into the upper chamber and escapes into the
lower chamber by means of a pipe which extends to near the bottom of the lower
chamber. To the bottom of the said lower chamber is fixed an upright pipe with
a slotted opening at the side of the upper part thereof. When the water rises to a
certain height in this said lower chamber it escapes through the slot into the
tube and passes therefrom into the carbide chamber below. The generated gas
escapes through another upright tube of the lower water chamber to the top of
the said chamber from whence it escapes by a pipe to the gas supply. I prefer
however to make the generated gas travel through coiled piping formed round the
inside of the upper chamber for the purpose of condensing the moisture contained
in the generated gas. As soon as the gas in the top of the lower water chamber
attains a certain pressure, it, acting on the surface of the water in the chamber,
forces the water out of the lower chamber into the upper chamber by means of the
water inlet pipe, until the level of the water is brought below the slot of the water-
inlet-tube to the carbide chamber, when the water supply being thus stopped, any
fresh generation of gas is also stopped until the pressure of the gas in the said
lower water chamber is reduced so as to allow the water to flow again from the
upper water chamber into the lower water chamber until the water reaches the
slotted opening of the water pipe in the carbide chamber when the gas generation
is renewed.

page_text: formed, to be particularly described and ascertained in and by the following
statement:
This invention relates to an acetylene gas lamp or generator, for all purposes where
a light is required or for the supply of gas for motive power or other purposes,
and has for its object to enable the supply of water to the carbide to be stopped
without the use of a valve.
But in order that my said invention may be more readily understood and easily
carried into effect I will proceed to describe the same with reference to the accom-
panying drawings in which
Fig. 1 is a sectional elevation illustrating one method of carrying out my inven-
tion.
Fig. 2 is a similar view of a modification.
Referring to the said drawings I employ an upright cylinder or tank the lower
part of which is for the generation of the gas and the upper for the water. The
two chambers are connected together by a screw ring C as shewn.. The upper part
of the cylinder is divided into two chambers F, F. The water is poured into the
chamber F and escapes into the chamber F1 by means of the pipe f which extends
to near the bottom of the chamber F¹. To the bottom of the chamber FI
and leading to the carbide chamber F2 is fixed an upright pipe G having a slot or
opening 9 formed in the side at the upper part thereof. When the water rises to
the height of the slot g it passes therethrough into the carbide chamber below.
The generated gas escapes through the pipe g to the top of the water chamber F
from which it is led by the coiled pipe 6 to the burner. As soon as the gas in
the chamber attains a certain pressure, it, acting on the surface of the water in
the chamber forces the water out of the lower chamber F1 into the upper chamber F
by means of the water inlet pipe f until the level of the water is brought below
the slot g of the tube G, when the water supply being thus stopped, any fresh
generation of gas is also stopped until the pressure of the gas in the lower
chamber F¹ is reduced so as to allow the water to flow again from the upper
chamber into the lower chamber when the water reaches the slot 9 and the gas
generation is renewed.
Fig. 2 is a modification of the foregoing, the carbide chamber being situated
at the side of instead of immediately below the water chamber.
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:
1. The acetylene gas lamp or generator, constructed and operating in the manner
as hereinbefore described and shewn in the accompanying drawings.
2. In an acetylene gas lamp or generator, a water chamber divided into two
compartments within which are secured the slotted pipe G for supplying the water
to the carbide, the pipe g' for leading the generated gas to the top of the lower
compartment and the pipe f by which the water in the lower compartment is
forced into the upper when the gas pressure exceeds that of the water, substantially
as and for the purposes herein before described and shewn in the accompanying
drawings.
Dated this 20th day of November 1897.
JOHNSONS,
Applicant's Agents, 115, St. Vincent Street, Glasgow.