Year: 1898

page_text: JOHN DRUMMOND Jn 162 Market St Aberdeen Mill & Engineer Furnisher
I John Drummond do hereby declare the nature of this invention to be as
follows:-
This invention consists of an arrangement of annular tanks so as to effectually
make the gas in perfect safety and to automatically stop its generation while not in
use, by means of a condenser and stop cock attached to a water vessel in connection
with a gas holder.
This generator is so arranged that it can be charged with calcium carbide while
working and without removing the previous charge, and at the same time preventing
the waste of gas.
It is so constructed that an over production will not be generated,
as a releife valver will lift on a pressure of 8 inches of water which relieves the gas.
This renders the generator & holder free from any danger of accident through over
pressure.
This invention consists of an arrangement of annular tanks, oil sealed or water
sealed, so as to make acetylene gas from carbide of calcium in perfect safety, and to
automatically stop its generation while not in use, this being attained by means of a
stop cock & condenser which is attached to a water vessel, the stop cock being
actuated by means of a connecting rod & lever which is attached to a cylinder
made to contain the gas that has been generated and placed inside the gas holder,
this cylinder rising when gas is being generated & falling when gas is being used.
The generator is so constructed that it can be charged with carbide of calcium and
no gas be lost while working, and without removing the previous charge. This is
attained by means of a double annular oil sealed vessel placed on top of generator,
and which acts as a relief valve at the same time in case of over pressure. By this
means there is no danger of bursting, but this could hardly happen owing to the
This relief valve lifts on a water
stoppage of the generation of gas above mentioned
pressure of 8 being applied.
1000

page_text: Acetylene Gas Generator & Holder.
JOHN DRUMMOND Jn 162 Market St Aberdeen Mill & Engineer Furnisher I 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:
My invention relates to an apparatus for the production of acetylene gas, consisting
of iron or steel annular tanks oil sealed so as to generate acetylene gas from carbide
of calcium in complete and perfect safety, & to automatically stop its generation
when the apparatus is not being used, even although the generation cells are full of
carbide not dissolved. This is obtained by means of a rod & levers attached to the
rising & falling oil sealed annular gas, holder, which actuates a stop cock & valve
which are fixed in a pipe that communicates with the generators & a water tank.
An important point of my invention is that when the gas has been generated it is
passed into a dry cold tank or holder which rises & falls in an oil sealed annular or
other space being condensed & delivered from this tank or holder, in a perfectly dry
condition. Another point being that the generator can be charged while in
operation & without removing the previous charge till the carbide holder is full of
the waste product; this holder rests in a water sealed space in the generator and is
always in a cold state whilst the generation of the gas is taking place. In the
accompanying drawings I have shown how my said invention may be conveniently
and advantageously carried into practice. Fig I is a plan of my invention shewing
the pipes leading from the generator into the annular oil sealed tank. Fig 2 Å
section on line .,. showing the construction of the rising & falling oil sealed
tank with the pipes leading from generators into the tank A being the pipe which
conducts the gas from the tank to where it is to be used and B the pipe which conducts
the gas from the generators to the inside of said tank C 1. & C 6. are the outside walls of
rising & falling tank C2 & C. 5. are the inside walls of said tank C3 & C4 are also part
of inside rising & falling tank, the oil sealing seen at D is placed between an annular
space connected to the outside wall of stationary tank The inside wall of annular
space in stationary tank is built up to the top of rising & falling tank, when the said
tank is resting on the bottom of stationary tank whilst there is no gas. The top of
this space is shown at E. E. A relief valve or escape gas pipe I is fitted inside the
walls of this tank the mouth of which is sealed amongst the oil, if by any means more
gas is made than the tank will hold the rising of the tank will cause the escape valve
or gas pipe to free the tank from the surplus gas. The tank is so constructed in
weight that it will rise at less than eight inches water pressure. The construction of
the generators is similar to the gas tank or holder shown in section at G and can be
used in combination with an ordinary gas holder. K stop cock is between generator
and tank so as to shut off gas from tank & generator whilst recharging Fig. 3. is an
elevation showing the complete apparatus. A bent rod R is attached to one end of
the rising & falling tank on the inside, the other end slides in a guide outside formed
in the shape of a tube; this rod R is attached to levers L. L. at joint shown at W,
the other ends of the levers are fixed to the cock F on the water supply pipe when the
inside tank rises the bent rod R rises and carries along with it the levers L L and
shuts cock F and stops the water coming from the water tank V which supplies. the
water for the generators and by the operation of the rising & falling tank with its
rod R regulates the necessary quantity of water which is required for the dissolving
of the carbide according to the gas used and at the same time when all the gas is
evolved from the carbide which is in the generator G 1. The water supply for G 1
is stopped by the jointed arm H which is attached to rod R coming down and moving

page_text: the valve M which turns the water on to generator G 2 when generator G 1 can then
be again charged ready when required. In working one generator a device called
a charger shown at J is used to insert fresh carbide while the apparatus is in operation
This charger is constructed of steel in a tubular form with one end closed which is
the top end. The other or open end is inserted in an annular space that is to say
between the tubes, the space between the tubes being filled with water. The charger
is inserted amongst the water so as to allow no gas to escape. Whilst charging the
generator the cock K on inlet pipe being shut off a fresh charge can then be pat put
As the carbide is always in
in without removing the previous charge of carbide.
a semi dry state and the time required to put in a fresh charge does not
take above
from
few seconds, there is very little if any escape of gas
a
generator while charging. The lever P shown on drawing is to fix charger down when
working. When required to put in more carbide it can be taken off and carbide
inserted without taking out the waste by simply dropping in from the top Fig 4.
shows an enlarged section of the valve M for automatically shutting off the water
from generator G 1 and opening it on to G 2 as occasion requires. The valve M. is
shown in position with the water shut off from G 1 and open to G 2 N 1 and N being
outlets an O inlet After the water is automatically turned off from G 1 and on
This operation is
to G 2, G 1 can be recharged and valve M reset so as to work G 1.
performed by raising the valve N 1 which allows the water from inlet O to pass on
the back of the valve to reach N 1 thereby putting G 1 in operation. Fig 5 is a
section of the inside rising and falling tank showing the relief valve or gas pipe
attached to the walls of the rising and falling tank shown at I and also in Fig 1.
This valve or pipe is attached to the rising and falling tank the mouth of which is
shown at I, and immediately the mouth of this valve or pipe rises above the oil
sealing the surplus gas escapes which can be carried away in a pipe to the atmosphere,
thus relieving the tank of any undue pressure.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be perforined and carried into practice
I declare that what I claim is First-the
The employment of annular oil sealed annular tanks for the storage of dry gas
said tanks consisting of a stationary holder vessel with inner and outer or annular
walls, and an inner moveable bell-shaped double walled vessel, the outer wall working
within an oil sealed annular space formed between the walls of stationary vessel,
acetylene gas being supplied to the holder from a generator, substantially as herein
described in reference to and shewn in the accompanying drawings Second-the
eharging-of the-generators-without--requiring-to-remove-the-previous-charge and
whilst--they are-evolving gas and the--apparatus-at-work. Third--water-seated
generators-making-gas-without-any great heat. Fourth clide valve for automati-
eally-changing-the-water-from-one-generator-to another
JOHN DRUMMOND IN
JOHN DRUMMOND IN