Improvements in or connected with Acetylene Gas Generators.
Year: 1899

page_text: Date of Application, 24th Feb., 1899
Complete Specification Left, 23rd Nov., 1899-Accepted, 23rd Dec., 1899
PROVISIONAL SPECIFICATION.
Improvements in or connected with Acetylene Gas Generators.
I, JOHN CALDICOTT, of 6, Crystal Avenue, Subway Street, Hull, in the County
of Yorkshire, Marine Engineer, do hereby declare the nature of this invention
to be as follows;--
The object of my invention is to provide means for automatically supplying
water to the carbide holders employed in acetylene gas generating plants, so that
when the required quantity of gas has been generated to sufficiently fill the store
tank the supply of water is stopped and the generation of gas is stopped at the
same time until a sufficient quantity of the gas has been used, then the water is
again supplied to the carbide holder and gas generated until the required quantity
of gas is again in the store tank when the supply of water is stopped and only
supplied to the carbide holder as the gas is drawn from the store tank, the
operation going on as before.
For the purpose of my invention I employ a store tank having a rising bell
or dome, and one, two or more carbide holders which are connected to the store
tank by suitable gas and water pipes provided with taps or cocks.
From the centre of the rising bell I run a pipe in a downward direction, this
pipe has a hole or holes in it for the admission of water; from the bottom of the
store tank I run a vertical pipe of larger diameter than the pipe depending from
the rising bell, this vertical pipe has a packet gland or the like at its top end
and an outlet at or near its bottom end, the outlet consisting preferably of a pipe
or pipes which runs or run to the carbide holder or holders by means of which
the water is supplied to such holder or holders. The pipe which depends from
the rising bell fits into and works within the vertical pipe the gland on which fits
tightly around such depending pipe so preventing water passing into the vertical
pipe except by means of the hole or holes in the depending pipe.
The water supply pipe from the store tank is connected to the carbide holder,
and if two or more holders are used branch pipes are employed. The gas pipe
from the carbide holder or holders is run into the store tank and the end brought
above the water line, both the gas and water pipes are provided with taps or cocks
so that the supply to or from each carbide holder may be regulated or stopped,
this allows of several carbide holders being worked together or separately as
desired.
The gas outlet pipe which carries the gas away for use has its end inside the
store tank above the water line and is provided outside the tank with a tap for
turning the supply of gas on and off.
The action of the apparatus is as follows:-Water is run into the store tank to
suitable height, the rising bell being sufficiently low, water enters the depending
pipe by means of the hole or holes therein and passes down the vertical pipe
through the water supply pipe to the carbide holder and comes in contact with the
carbide in such holder, gas is generated and carried by means of the gas pipe into
the store tank, the gas forces the rising bell up and when a certain quantity haş

page_text: entered the store tank the dome is so high that the water admission hole in the
depending pipe is above the water line and so the supply of water to the carbide
holder is stopped, but as the gas is drawn off from the store tank the dome descends
and the admission hole in the depending pipe passes into the water and so allows
water to pass to the carbide holder more gas being thus generated, and the operation 5
goes on as before described.
Dated this Twenty-third day of February 1899.
Improvements in or connected with Acetylene Gas Generators.
I, JOHN CALDICOTT, of 6, Crystal Avenue, Subway Street, Hull, in the County
of Yorkshire, Marine Engineer, 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:-
The object of my invention is to provide means for automatically supplying
water to the-carbide-holders employed in acetylene gas generating plants so that
when the required quantity of gas has been generated-to-sufficiently fill the
store tank the supply of water is stopped and the generation of gas is stopped at
the same time until a sufficient quantity of the gas has been used, then the water
is again-supplied to the carbide holder and gas generated until the required
quantity of gas is again in the store tank when-the-supply-of-water is stopped
and only supplied to the carbide holder as the gas is drawn from the store tank;
the operation going on as before.'
DESCRIPTION OF DRAWINGS.
Fig. 1 represents a front view of my improved acetylene gas generating
apparatus.
Fig. 2 represents a sectional view through the line 1, 2 of Fig. 1.
For the purpose of my invention I employ a store tank A having a rising bell
or dome B, and one, two or more carbide holders C which are connected to the
store tank by suitable gas pipes D and water pipes E provided with taps or
cocks F, G. From the centre or other suitable part of the rising bell or dome B
1 run a pipe H in a downward direction, this pipe has a hole or holes H' in it for
the admission of water; from the bottom of the store tank A I run a vertical pipe J
of larger diameter than the pipe depending from the rising bell, this vertical
pipe has a packed gland or the like K at its top end, and an outlet E at or near
its bottom end, the outlet consisting preferably of a pipe or pipes E, which runs
or run to the carbide holder or holders C by means of which the water is supplied
to such carbide holder or holders; where two carbide holders are employed this
pipe E preferably forms two branches E1 E2 outside the store tank A, one branch
running to one carbide holder and the other branch to the second holder.
The pipe H which depends from the rising bell fits into and works within the
vertical pipe J, the gland K on which fits tightly around such depending pipe I
60 preventing water passing into the vertical pipe except by means of the hole
or holes, which may be in the form of one, two or more hollow projections on the
depending pipe.
The gas pipe D from the carbide holder or holders C is run into the store tank A
and the end brought above the water line.

page_text: When two carbide holders, for instance, are employed, branch pipes D¹² are
used, being each connected to the main pipe D one branch being connected to one
carbide holder and the other branch to the second carbide holder, both the main
gas and water pipes or their branches are provided with taps or cocks F G so that
the supply to or from each carbide holder may be regulated or stopped, this allows
of several carbide holders being worked together or separately as desired. The
gas outlet pipe L which carries the gas away for use has its end inside the store
tank above the water line, and is provided outside the tank with a tap L' for
turning the supply of gas on and off, and if desired any suitable trap or purifier M
may be connected to it to catch any moisture which remains in the gas as it comes
from the store tank.
4
A try cock N may be employed fitted at any suitable part of the store tank A
so that it can be ascertained if there is sufficient water in such tank, also a draw
off cock may be fitted at or near the bottom of such tank for drawing off the
water, and the carbide holders may each have a cock P P at or near their bottoms
for the same purpose.
The store tank may be provided or not with a hinged or other lid or cover A'
so that the generator may be self contained, when so provided a stop or strip R
may be fixed across the tank at or near the top to prevent the dome rising too
high and lifting the cover. Upright angle or channel pieces S may be placed at
suitable distances apart within the store tank to act as guides for the dome B and
so keep it from bearing against the inner shell of such tank.
The action of the apparatus is as follows:-Water is run into the store tank
to a suitable.height, the rising bell being sufficiently low, water enters the depend-
ing pipe by means of the hole or holes therein and passes down the vertical pipe
through the water supply pipe to the carbide holder and comes in contact with the
carbide in such holder, gas is generated and carried by means of the gas pipe into
the store tank, the gas forces the rising bell up, and when a certain quantity has
entered the store tank the dome is so high that the water admission hole in the
depending pipe is above the water line, and so the supply of water to the carbide
holder is stopped, but as the gas is drawn off from the store tank, the dome decends
and the admission hole in the depending pipe passes into the water and so allows
water to pass to the carbide holder, more gas being thus generated and the opera-
tion goes on as before described. It will be understood that in place of making
the vertical pipe J the large one and letting the depending pipe H work within
it, equally satisfactory results may be obtained by letting the depending pipe H
be the larger one, providing it with a packed gland, and letting the vertical
pipe J work within it, in this case the depending pipe H will be still provided
with water inlets and the vertical pipe J with water outlet to the carbide
holders.
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. An acetylene gas generating apparatus consisting of a store tank A, with or
without lid or cover A, and stop or strip R, such store tank A having a rising
bell or dome B working inside it, this bell being provided with a depending
pipe H with water inlet holes H', such pipe H working within a vertical pipe J
rising from the centre or other part of the store tank A, and having packed
gland K on it; one or more carbide holder C with its accompanying gas and water
pipes D and E for connecting it with the store tank and gas delivery pipe L, in
the manner and for the purposes substantially as shown and described.
2. In acetylene gas generating apparatus of the kind having a rising bell, the
employment of a depending water supply pipe such as H from the centre or other
suitable part of the moveable bell, such pipe having water inlet or inlets; vertical
pipe such as J within the store tank A, with connection to the carbide holder or
holders, one of these pipes being of larger diameter than the other, and being pro-

page_text: vided with a packed gland such as K, the smaller pipe working within the larger
one, in the manner and for the purposes, substantially as shown and described.
3. The combination of the parts to form an acetylene gas generating apparatus
substantially as described in the foregoing specification, and shown in the accom-
panying drawings, in the manner and for the purposes, substantially as shown and
described.
JOHN E. WALSH,
Savile Street, Hull, and Crossley Street, Halifax,
Patent Agent for the Applicant.