Improved Apparatus for use in the Preparation of Chemical Solutions or Liquids for the Extinguishing of Fire.
Year: 1891

page_text: Date of Application, 17th July, 1891
Complete Specification Left, 13th Apr., 1892-Accepted, 21st May, 1892
PROVISIONAL SPECIFICATION.
Improved Apparatus for use in the Preparation of Chemical
Solutions or Liquids for the Extinguishing of Fire.
I, CONRAD GAUTSCH of Munich in the Empire of Germany Manufacturer do
hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide a portable or movable apparatus or
vehicle fitted with apparatus by which certain chemical salts or liquids suitable
for use in extinguishing fire may be mixed with or dissolved in water previous
to the employment of the latter for the extinguishing of fire in the usual
manner.
On a suitable carriage frame upon wheels, are mounted two cylinders having
each at one end a movable door in the form of a falling flap capable of being tightly
closed. At one end these cylinders are in communication with a Y or T pipe
having a union for attachment of a hose connected to the water main, and at the
other end with a similar pipe for attachment to a delivery hose. Cocks are
provided for closing these pipes or placing the hose in communication with the one
or other cylinder respectively so that the one may be used while the other is being
recharged. Over these cylinders is a third cylinder in which the chemical fluid
has been previously poured or pumped. On the carriage in front of the doors of
the cylinders is a frame carrying a suitable number (for instance four) of smaller
drums or cylinders containing the chemical salt to be dissolved in or mixed with
the water. These drums are mounted on wheels so that when either of the cylinder
doors is opened the latter forms a continuation of a floor or railway by which one
of the drums may be rolled into the cylinder after the empty drum previously
therein has been rolled out onto a lower stage of the said frame which is movable
vertically so as to receive the empty drum on a lower tier. Suitable indicators
gauge glasses etc. are provided for ascertaining the level and quality of the contents
of the three cylinders and cocks are provided for partially or completely emptying
the same of water or of air. While the water from the main or other source is
being passed through one of the cylinders dissolving the chemical therein and
mixing with the desired quantity of fluid from the upper cylinder, the other main
cylinder when empty may be opened and a charged drum rolled into it, this drum
is then opened and the door of the cylinder again closed.
Rotary brushes are provided for brushing any adhering chemical from the doors
previous to opening them.
Dated in 17th 1 of 11. 1901
HERBERT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improved Apparatus for use in the Preparation of Chemical
Solutions or Liquids for the Extinguishing of Fire.
1, CONRAD GAUTSCH, of Munich, in the Empire of Germany, Manufacturer, 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 this invention is to provide a portable or movable apparatus or
vehicle fitted with apparatus by which certain chemical salts or liquids suitable for
use in extinguishing fire may be mixed with or dissolved in water previous

page_text: to the employment of the latter for the extinguishing of fire in the usual
manner.
On a suitable carriage frame upon wheels, are mounted two cylinders having
each at one end a movable door in the form of a falling flap capable of being
tightly closed. At one end these cylinders are in communication with a
Yor T pipe having a union for attachment of a hose connected to the water main,
and at the other end with a similar pipe for attachment to a delivery hose. Cocks
are provided for closing these pipes or placing the hose in communication with the
one or other cylinder respectively so that the one may be used while the other is
being recharged. Over these cylinders is a third cylinder in which the chemical
fluid has been previously poured or pumped. On the carriage in front of the doors
of the cylinders is a frame carrying a suitable number (for instance four) of smaller
drums or cases containing the chemical salt to be dissolved in or mixed with the
water. These cases are mounted on wheels so that when either of the cylinder
doors is opened the latter forms a continuation of a floor or railway by which one
of the cases may be rolled into the cylinder and when empty rolled out onto a
lower stage of the said frame which may be movable vertically so as to receive the
empty drum on a lower tier. Suitable indicators, gauge glasses, etc., are provided
for ascertaining the level and quality of the contents of the three cylinders and
cocks are provided for partially or completely emptying the same of water or of air.
While the water from the main or other source is being passed through one of the
cylinders dissolving the chemical therein and mixing with the desired quantity of
fluid from the upper cylinder, the other main cylinder when empty may be opened
and a charged drum rolled into it, this drum is then discharged and withdrawn and
the door of the cylinder again closed.
Rotary brushes are provided for stirring up the chemical in the cylinders.
In the accompanying drawings
Fig. 1 is a side elevation of the apparatus.
Figs. 2 and 3 are detail views thereof.
Fig. 4 is an end elevation of part of the apparatus and
Fig. 5 is detail view of the interior of one of the cylinders.
D is a frame supported on wheels F F F F and carrying the two supporting
frames E and E. The frame E carries on springs f two cylinders A A¹ and over
the latter the cylinder B. The pipe C leads to each cylinder A A' at one end and
is connected by union a to hose & which supplies water from a hydrant or otherwise.
In the pipe care the three cocks be e. A smaller branch pipe m leads from
pipe c to the cylinder B and is provided with a cock. At the other end of the
cylinders is a similar pipe system, consisting of pipe c¹ with cocks wv v¹ hose x for
delivery of the water or solution from the apparatus, branch pipe with cock s.
Each cylinder A A' has a pressure indicator a, an air cock g, and two blow off
cocks op connected with pipe 9. The cylinder B has an opening 7 for pumping in
the liquid with which the cylinder is filled said opening being closed with a cap,
also an air cock k and gauge glass h. On the end of the frame E is an areometer
which may be turned in any direction on a rotary socket. Directly over it is the
cock (Fig. 2) and under it is the relief pipe y with cock a'. It is used to test
the solution of salts in the liquid in the cylinders A A', the said liquid being
drawn into the glass vessel of the areometer from cock t and after inspection emptied
away through pipe y.
At the rear end, the cylinders A A' are provided with the tightly closing doors i i
which open as shown in Fig. 1 to receive into the respective cylinder a charge case
of which there are four C C C C³ on the frame E¹, each supported on wheels B
which run on rails on the frame E¹. Each case is provided with a hinged bottom
in two halves secured by a rod & passing through perforated lugs on the one and
other parts respectively, so that by withdrawing the rod the contents may be
discharged.
E
The apparatus should be used as follows; The cylinders A. A' are filled with
water up to the cocks o, the air cocks g being opened and likewise the doors i.

page_text: The
Two cases C¹ C' are then run into the cylinders A'A on the rails therein Fig. 5,
discharged, and withdrawn to be placed on a lower shelf of the frame E', or by any
suitable arrangement (not shown) for lowering the frame E¹, brought into the
position shown in dotted lines, the upper pair of charged cases being by the same
action brought down onto the level of the cylinders A A' ready for use next time.
The doors are then closed and cocks 6 and e opened. The cylinder A is thus
filled with water and the air cock g is thereupon closed and the cocks w and v
opened so that the water charged with the chemical salt issues from hose x.
water continues to pass through the cylinder A until the chemical therein is used
up whereupon the inlet of water is closed and the cylinder allowed to empty to be
again charged while the second cylinder A' is similarly placed in action. It will
be understood that before the apparatus is brought to the scene of a fire the
cylinders A A' will be charged and ready for use, and the four cases C C¹ C² (³
will also be filled. The cylinders A A' will then supply the necessary chemical to
the water alternately without any cessation of the action of the apparatus, until the
whole store of chemical is exhausted.
Suitable brushes or agitating arms y are mounted on shafts & in the bottom of each
cylinder A A¹ (Fig. 5) connected by toothed gearing to revolve in opposite directions
when moved by hand, to mix up the chemical which tends to cake at the bottom
of the cylinders.
Suitable sizes for the cylinders are as follows; the cylinders A A' to hold each
about 250 liters, the cylinder B to hold 100 liters, the cases C C¹ C' C³ each to
hold 100 kilograms of the chemical.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1) In apparatus for use in the preparation of chemical solutions or liquids for
the extinguishing of fire, the combination of two cylinders or chambers A A¹
connected with water inlet and outlet pipes and arranged for solution of the
chemicals placed therein and for alternate use substantially as set forth.
2) The combination of the two chambers A. A' having doors ii, with the frame E'
carrying charging cases C C etc., whereby the latter may be shifted into and
from the chambers A A' for discharge of their contents therein, substantially as
described.
Bathro Rth day of Anul 1209
Bated this th
TRO
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.