Improved Apparatus for Extinguishi
Year: 1886

page_text: Date of Application, 8th Dec., 1886
Complete Left, 7th Oct., 1887
Complete Accepted, 8th Nov., 1887
Improved Apparatus for Extinguishi
We, HUGO WALDEMAR LANGBECK, of No. 127 Leman Street, Goodman's Fields
in the County of Middlesex, Analytical Chemist and OTTO DAMM, of No. 43 Leman
Street aforesaid, Gentleman, do hereby declare the nature of this invention to be
as follows:-
Our invention relates to the construction of apparatus for extinguishing fires,
wherein liquefied carbonic acid gas is employed to produce the extinguishing
medium.
For this purpose we construct a strong closed receptacle by preference of spherical
or cylindro spherical shape and made of steel or phosphor bronze, so as to withstand
considerable pressures, which receptacle has an inlet opening connected by a tube
provided with a safety valve and pressure gauge, with a strong vessel or bottle
charged with carbonic acid gas compressed to a liquid condition, similar to the vessels
or bottles charged with liquefied gases now commonly used for experimental and other
purposes. The vessel is connected to the tube by a screw or other connection allowing
of its ready attachment and detachment, and provided with a cock or valve by which
the communication between the two vessels can be established from time to time so as
to allow a portion of the liquefied gas to expand into a gaseous form and to pass into
the larger receptacle, charging this with carbonic acid gas at any desired pressure, as
indicated by the pressure gauge. This receptacle is also provided with a discharge
orifice, from which branch one or more pipes provided with cocks or valves and
connected to flexible hose or jointed pipes of any desired length and having discharge
nozzles.
Thus assuming the main receptacle to be charged with carbonic acid gas at any
desired pressure, then on the occurrence of a fire, this gas can be discharged through
one or more of the hose pipes and being a non supporter of combustion it will
extinguish the flames; the main receptacle can be charged again from time to time
from the receptacle containing the liquefied gas, so as to maintain the requisite

page_text: pressure, and if necessary there may be two of the liquefied gas receptacles connected
to the main vessel, so that as the one receptacle becomes exhausted it may be removed
and replaced by a charged one while the main vessel continues to be supplied by the
second receptacle.
Instead of supplying a number of hose directly from a single vessel containing gas
under pressure, the vessel into which the gas expands from the receptacle containing
the liquefied gas, may be made to supply a number of other vessels situated at different
parts of the building, through branch pipes having automatic reducing valves of any
known construction, so that while gas at a more or less fluctuating high pressure is
contained in the main vessel, the branch vessels will be supplied therefrom at a
constant lower pressure, each such branch vessel being provided with a delivery hose.
Dated this 8th day of December 1886.
ABEL & IMRAY,
Agents for the Applicants.

page_text: COME DEIE
Improved Apparatus for Extinguishing Fires.
We, HUGO WALDEMAR LANGBECK of No. 127 Leman Street, Goodmans Fields in
the County of Middlesex, Analytical Chemist and OTTO DAMM of No. 43 Leman
Street aforesaid Gentleman 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 :-
Our invention relates to the construction of apparatus for extinguishing fires
wherein liquefied carbonic acid gas is employed to produce the extinguishing medium.
For this purpose we construct a strong closed receptacle by preference of spherical
or cylindro spherical shape and made of steel or phosphor bronze, so as to withstand
considerable pressures, which receptacle has an inlet opening connected by a tube
provided with a safety valve and pressure gauge with a strong vessel or bottle charged
with carbonic acid gas compressed to a liquid condition similar to the vessels or bottles
charged with liquefied gases now commonly used for experimental and other purposes.
The vessel is connected to the tube by a screw or other connection allowing of its
ready attachment and detachment, and provided with a cock or valve by which the
communication between the two vessels can be established from time to time so as to
allow a portion of the liquefied gas to expand into a gaseous form and to pass into the
larger receptacle, charging this with carbonic acid gas at any desired pressure, as
indicated by the pressure gauge. This receptacle is also provided with a discharge
orifice, from which branch one or more pipes provided with cocks or valves and
connected to flexible hose or jointed pipes of any desired length and having discharge
nozzles.
Thus assuming the main receptacle to be charged with carbonic acid gas at any
desired pressure, then on the occurrence of a fire, this gas can be discharged through
one or more of the hose pipes, and being a non-supporter of combustion, it will
extinguish the flames; the main receptacle can be charged again from time to time
from the receptacle containing the liquefied gas, so as to maintain the requisite
pressure, and if necessary there may be two of the liquefied gas receptacles connected
to the main vessel, so that as the one receptacle becomes exhausted it may be removed
and replaced by a charged one while the main vessel continues to be supported by the
second receptacle.
Instead of supplying a number of hose directly from a single vessel containing gas
under pressure, the vessel into which the gas expands from the receptacle containing
the liquefied gas, may be made to supply a number of other vessels situated at
different parts of the building, through branch pipes having automatic reducing
valves of any known construction, so that while gas at a more or less fluctuating
high pressure is contained in the main vessel, the branch vessels will be supplied
therefrom at a constant lower pressure, each such branch vessel being provided with a
delivery hose.
Fig. 1 of the accompanying drawing shews a perspective view of one arrangement
of our above described improved apparatus and Fig. 2 shews an enlarged sectional
plan of the connection with the vessels charged with compressed gas.

page_text: A is a strong metal vessel by preference of spherical or cylindro spherical form,
from the centre of which rises a pipe B having a safety valve C and to which is
attached a branch pipe D terminating in a head E. This head contains a branched
passage on each part of which is a shut-off valve F F and which terminates in two
screw unions G G by which it is attached to one of the strong receptacles H H¹
containing the compressed or liquefied gas, which are of well known construction.
The vessel A has another pipe I provided with three or any other desired number
of branches 11 and stop cock J J to which are attached fire hose K, so that, the
apparatus being placed at any convenient central position, the several hose can be
conveyed to any locality where a fire may occur.
Or in place of connecting the hose directly to the apparatus, metal pipes may lead
from the latter to the different localities, where they either have the hose attached to
them, or have auxiliary vessels connected to them as before described.
In operating with the apparatus, the vessel A is first charged with gas under
pressure from one or other of the receptacles H H¹ the corresponding valves being
opened for this purpose, until the pressure gauge O indicates that the required pressure
has been reached in A. The inlet valves are then shut off, and when a fire occurs,
one or other of the cocks J are opened so as to allow the gas under pressure to escape
through the hose.
As the pressure decreases in the vessel A the valves of the
vessel H or H are opened to allow a fresh supply to enter, or the valves may be kept
continuously open to a slight extent during the discharge from the vessel A. When
the vessel H or H' in use is exhausted, the shut off valves to the same are closed
and the receptacle is disconnected, to be replaced by a fresh one, the apparatus being
in the mean time worked by charges from the other receptacle.
The apparatus may also be mounted on wheels so as to be capable of being conveyed
to the locality where a fire occurs.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed we declare that what we claim is :-
1. The construction of apparatus for extinguishing fires wherein a strong closed
vessel has connected to firstly one or more detachable vessels containing highly
compressed or liquefied carbonic acid gas, and secondly one or more hose pipes so that
the first named vessel can be charged with carbonic gas at any desired pressure from
the detachable vessel, and such gas under pressure can then be discharged through the
hose substantially as herein described.
2. In apparatus for extinguishing fires such as is referred to in the preceding claim,
the combination of a strong closed vessel charged with compressed carbonic acid gas,
one or more branch pipes with stop cocks for connection with fire hose, a branch pipe
with shut-off valve or valves adapted for connection with one or more receptacles
containing highly compressed or liquefied carbonic acid gas, a safety valve for
preventing excess of pressure in the first named vessel, and a pressure gauge for
indicating the pressure therein, substantially as herein described.
3. The combination of a main vessel charged with carbonic acid gas under pressure
from a detachable vessel containing liquid carbonic acid, with two or more auxiliary
vessels situated in different parts of the building, such auxiliary vessels being charged
with carbonic acid gas through pipes from the main vessel and having Hexible or
jointed pipes with nozzles for the delivery of the gas, substantially as herein
described.
ABEL & IMRAY,
Agents for the Applicants.