Year: 1887

page_text: Date of Application, 19th July, 1887
Complete Left, 14th Apr., 1888
Complete Accepted, 18th May, 1888
I, JAMES BALLANTYNE HANNAY of Cove Castle, Loch Long in the County of
Dumbarton, North Britain, Chemist, do hereby declare the nature of this Invention
to be as follows, that is to say :-—
My said Invention has for its object to improve the construction of fire extinguishing
apparatus of the kind in which a carbonate or bicarbonate with water is contained in
a vessel having also in it a bottle containing an acid to act on the carbonate when
the apparatus is to be used, so as to set free carbonic acid gas the pressure of which
will cause the projection of itself and the liquid through a suitable nozzle upon the
fire. By my Invention such apparatus is rendered more convenient and efficient in
use and less liable to get out of order than existing apparatus of a similar kind.
"
In carrying out my Invention the main vessel is made of an elongated cylindrical
or other convenient form and of a metallic alloy of or similar to the kind known as
Arguzoid" and which whilst not very liable to corrosion internally will present an
ornamental exterior, the alloy being conveniently susceptible of ornamentation by
moulding or engraving or otherwise and being easily polished. To the top of the
vessel there is fitted a comparatively large screw plug formed with a stuffing box
through which a rod passes. The acid is contained in a small bottle of glass or
material not corrodible by the acid and is closed by a conical plug made of lead or
glass and formed with a groove round it which is packed with asbestos. The acid
bottle is held in a ring pivoted to rods fixed to the screw plug, and when not held up
by the stopper tumbles over and empties the acid amongst the carbonate. The stopper
is fixed to the rod which passes through the stuffing box in the screw plug, and this
rod is drawn outwards so as to release the acid bottle when the apparatus is about to
be used. The acid bottle with its stopper may be arranged in various ways, and so
that the rod moves either the stopper or bottle on being drawn out or pushed in.

page_text: A convenient handle is hinged to one side of the main vessel and a valve for
controlling the escape of the gas and liquid through a flexible pipe with a nozzle is
placed so that it can be acted on by the thumb or finger of the hand holding the
apparatus by the handle. The valve is of a kind closing by a spring when the pressure
of the thumb or finger is removed; and the liquid and gas are led to it by an internal
pipe extending down to the bottom of the vessel so that all the liquid may be forced
out through the pipe. The flexible pipe with the nozzle at its end is jointed to the
part in which the valve is fitted, and when not being used the nozzle is retained in a
spring clip near the bottom of the vessel.
D
1
T

page_text: COMPLETE SPECIFICATION.
Improvements in Fire Extinguishing Apparatus.
1, JAMES BALLANTYNE HANNAY, of Cove Castle, Loch Long, in the County of
Dumbarton, North Britain, Chemist, 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, that is to say :—
My said Invention has for its object to improve the construction of fire extinguishing
apparatus of the kind in which a carbonate or bicarbonate with water is contained in
a vessel having also in it a bottle containing an acid to act on the carbonate when
the apparatus is to be used, so as to set free carbonic acid gas the pressure of which
will cause the projection of itself and the liquid through a suitable nozzle upon the
fire. By my Invention such apparatus is rendered more convenient and efficient
in use and less liable to get out of order than existing apparatus of a similar kind.
And in order that my said Invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings
showing a simple and convenient modification of my improved apparatus figure, 1,
being a side elevation and figure, 2, a vertical section. In these drawings the
same reference numerals are used to mark the same or like parts wherever they are
repeated.
In carrying out my Invention the main vessel, 3, is made of an elongated cylindrical
(or other convenient) form; and of a metallic alloy of, or similar to, the kind known
as "Arguzoid" and which whilst not very liable to corrosion internally will present
an ornamental exterior, the alloy being conveniently susceptible of ornamentation by
moulding or engraving or otherwise and being easily polished. To the top of the
vessel, 3, there is fitted a comparatively large screw plug, 4, formed with a stuffing
box, 5, through which a rod, 6, passes. The upper end of this rod, 6, is made with a
knob, 7, which when the apparatus is not in use is covered by a cap, 8, screwed on to
the outer side of the screw plug, 4. The acid is contained in a small bottle, 9, of
glass or material not corrodible by the acid. The bottle, 9, is closed by a conical
plug, 10, made of lead (or glass) and formed with a groove, 11, round it which is
packed with asbestos. The acid bottle, 9, is held in a ring or cylindrical shell, 12,
being entered from the bottom and retained in position by spring clips, 13, which
are pressed aside when inserting the bottle. The ring or shell, 12, is pivoted towards
its lower end to rods, 14, fixed to the screw plug, 4, and when not held up by the
stopper, 10, the bottle, 9, tumbles over and empties the acid amongst the carbonate.
The stopper, 10, is made with an upward extension fixed by a pin, 15, to the lower
end of the rod, 6, which passes through the stuffing box, 5, in the screw plug, 4, and
on the removal of the cap, 8, this rod, 6, is to be drawn outwards by its knob, 7, so
as to release the acid bottle, 9, when the apparatus is about to be used. A convenient
handle, 16, is hinged to one side of the main vessel, 3, and a valve, 17, for controlling
the escape of the gas and liquid through a flexible pipe, 18, with a nozzle, 19,
1

page_text: (figure, 1) is placed so that it can be acted on by the thumb or finger of the hand
holding the apparatus by the handle, 16. The valve, 17, is made with a button, 20,
on the outer end of its spindle, 21, and is of a kind closing by internal pressure, and
by a spring, 22, when the pressure of the thumb or finger is removed from the
button, 20. The liquid and gas are led to the valve, 17, by an internal pipe, 23,
extending down to the bottom of the vessel, 3, so that all the liquid may be forced
out through the pipe, 23, which has its lower end encased with wire gauze, 24, to
prevent the passage of matters which might obstruct the nozzle, 19. The flexible
pipe, 18, with the nozzle, 19, at its end is attached to a short metal pipe, 25, extending
upwards from the valve casing; and when not being used the nozzle, 19, is retained
in a spring clip, 26, (figure 1) near the bottom of the vessel, 3. Or the flexible
pipe, 18, may be dispensed with, the nozzle, 19, being formed or fixed on the upper
end of the short pipe, 25, itself, as shown in figure, 2.
The acid bottle, 9, with its stopper, 10, may be arranged in various ways, and so
that the rod, 6, moves either the stopper, 10, or bottle, 9, on being drawn out or
pushed in.
my
said
Having now particularly described and ascertained the nature of
Invention and in what manner the same is to be performed, I declare that what I
claim is :-
--
1-The combination and arrangement of parts constituting my improved fire-
extinguishing apparatus substantially as and for the purposes herein before described
with reference to the accompanying drawings.
2-Making the main vessels of fire-extinguishing apparatus of a metallic alloy of
'or similar to the kind known as "6
Arguzoid" substantially as and for the purposes
hereinbefore described.
3-The improved combination or arrangement of the parts for holding and releasing
the acid bottle as shown in figure, 2, of the accompanying drawings and hereinbefore
described.
4-Fitting fire-extinguishing apparatus with a valve which controls the egress
of carbonic acid and liquid and which is arranged in a position to be acted on by
the hand holding the apparatus, substantially as hereinbefore described.
Dated this Thirteenth day of April 1888.
EDMUND HUNT,
Applicant's Agent.