Year: 1897

page_text: 8
Fig. 4 is an end view of the apparatus.
The receiver a in which the vacuum is to be produced and which can be of
any form, is provided on the top with a cock b, through which the necessary gas
is introduced, which has to drive out the air contained in the reservoir. The air
escapes through the tube c, Fig. 2, which reaches to the bottom of the reservoir
and through the valve d, Fig. 2, seated in this tube.
The gas producing the vacuum is in the holder 7 arranged laterally on the
reservoir a, this holder being connected with the cock b by means of the pipe q
and the union r.
The reservoir a has further a small piston-pump e the interior of which can
be shut off from the interior of the reservoir by means of the cock f. 9', g² are
glasses for observing the height of the liquid in the reservoir a. h is a tube
with a cock or valve which is connected with the suction-pipe.
On
When the apparatus is to be used as a fire extinguishing engine, a small
receiver is arranged on the under side of the reservoir a; this receiver k is in
connection with the interior of the reservoir a by means of cock or valve i
and has a second cock on the union of which the pumping-pipe is fixed.
the opposite side of the receiver & there is arranged a second pipe-attachment m,
from which the pipe s is brought to the carbonic acid holder on the side of the
reservoir a opposite to the holder p. In the interior of the receiver there is a
nozzle apparatus o. The reservoir a is mounted on a fixed framing or carriage
in a convenient manner.
The apparatus is operated in the following manner:
After all the cocks are closed with the exception of 6, the gas for producing the
vacuum is conveyed from the holder p into the reservoir a. Any compressed gas

page_text: or a mixture of compressed gases can be used for the purpose, which has the
property of being absorbed by water.
The most appropriate is ammonia (NH) in compressed state, or a mixture
of the same with hydric peroxide.
As soon as the gas has driven the air out of the reservoir a through the pipe
the gas is shut off and the cocks b and d are closed. Then by means of the
cock e¹ or in any other convenient manner sufficient water is introduced into the
pumpe for complete absorption of the gas in the reservoir, the quantity required
corresponding to the temperature of the water used; the colder the same the less
is required.
Then the cock f is opened and the piston of the pump e is pressed downwards,
whereby the water in e passes into the reservoir a.
In order that it may spread as much as possible over the interior of the
reservoir a and that the quick absorption of the gas can take, place, there is
arranged on the cock-tube f a small bent tube t, the outlet opening of which is
formed as a narrow slot or in the form of small holes and effects the dispersing of
the water.
A vacuum is thus formed almost instantaneously. The cock f is then closed
and the suction pipe is connected with the reservoir a by opening the cock h.
The reservoir a is filled with great rapidity and the liquid can be used according
to its nature.
Instead of the cocks e¹ and f there can be used a three-way cock.
When one wants to have water or liquid without or nearly without containing
gas, the water pumped into the reservoir for the absorption of the gas is allowed to
pass, by opening the cock i, into the receiver k. The cock is closed again and
communication is then opened with the suction pipe.
When the reservoir a is to be used as a watering cart, the appropriate distribut-
ing pipes can be connected with the outlet after having closed the cock h.
Serving as fire extinguishing engine, the reservoir a is filled with liquid and the
suction pipe is closed by the cock h the communication of the reservoir a with
receiver is opened by opening the cock and the valve d is fixed by the screw-
nut u, the carbonic acid vessel n is connected with the receiver k by means of the
pires and the valve m and the cock 7 are opened.
The carbonic acid drives by its pressure the water drawn by the nozzles o out
through the pipe connected with the cock 7 and through its mouthpiece.
The arrangement of the receiver k and of the nozzles o effects a great saving of
carbonic acid, as in this manner one does not fill up the reservoir a therewith,
which would be necessary if one were to let it operate on the surface of the water
in the reservoir.
A further advantage of this fire engine is that the water is charged with carbonic
acid and is thus considerably more effective for extinguishing fire.
But when the water or liquid has to serve for watering plants or the like, it
is used with greater advantage, as it is charged with ammonia which forms a
good manuring agent.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:-
1. An improved vacuum liquid lifter, in which a vacuum is produced nearly
instantaneously by introducing compressed ammonia (NH2) or a mixture thereof,
or other compressed gas absorbable by water and by means of a water disperser
in a closed vessel.
2. In vacuum liquid lifters as under Claim 1, the pump e with closing organ f.
and tube t for the purpose of dispersing the water for the quick absorption of
the gas by the least quantity of water.

page_text: 3. In vacuum liquid lifters as under Claim 1, the tube c with valve d for the
purpose of driving the air out of the receiver a from below.
4. In vacuum liquid lifters as under Claim 1, the use of compressed gases,
which have the property of being absorbed by water, for instance ammonia (NH,)
or a mixture of the same, for the purpose of producing a vacuum.
5. In vacuum liquid lifters as under Claim 1, the connection of the receiver k
with the reservoir a by means of cock or valve i and the arrangement of the nozzle
apparatus in connection with a carbonic acid supply for the purpose of using
the liquid lifter as a fire extinguishing engine.
Dated this 17th day of July 1897.
HERBERT HADDAN & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to the Applicants.