IMPROVEMENTS IN PORTABLE FIRE EXTINGUISHING APPARATUS
Year: 1885

page_text: Improvements in a
I, SAMUEL PEARCE WILDING, of the firm of Fell & Wilding, of 1 Queen
Victoria Street, in the City of London, Patent Agents, do hereby declare the
nature of the said invention for "IMPROVEMENTS IN PORTABLE FIRE EXTINGUISHING
APPARATUS," a communication to me from abroad by Count Joseph Augusto
Mauclere, of Paris in the Republic of France, to be as follows:-
"
The said invention relates to certain improvements in portable fire extinguishing
apparatus, generally known as Extincteurs," and is specially designed by a novel
arrangement of spherical acid receiver to allow of the same serving indefinitely,
and of fulfilling the double office of acid receiver and of an adequate stopper to
the pressure.
The said invention consists of a cylindrical vessel composing the body of the
apparatus, and which contains the alkaline liquid, and of a spherical receiver,
which contains the acid.
The cylindrical receiver is furnished with an upper orifice fitted with a collar,
threaded with a female screw, designed to receive the male screw of the neck piece
of the spherical receiver overhead, and having at its lower part two projections or
stops, the object of which will be described hereinafter. This same orifice is fitted
with a funnel, rigid with, or fixed to the cap of the cylindrical receiver. The
spherical receiver is furnished with handles which are fixed thereto by a screw and
interior nut soldered in place.
At the lower part of the spherical receiver, and surrounding the orifice thereof,
is fitted the neck piece (suitably of brass) which is screw-threaded to fit in the
screw aforesaid, formed in the collar of the cylindrical receiver. The lower part of
this neck piece is screw-threaded in the inside to receive the male screw of a
stopper, the said screw being in a contrary sense to that of the neck piece.
Gutta percha washers ensure the tightness of the joints of both receivers.
In a state of inaction, the cylindrical receiver, or body of the apparatus filled
with alkaline liquid is stoppered by means of the spherical acid receiver aforesaid,
and the spherical acid receiver is in turn closed by means of the last named stopper.
In order to obtain the mixture of the two liquids; that is to say to produce

page_text: instantaneous pressure, it is sufficient to turn the spherical receiver on the screw
thread in its neck piece engaging with the screw thread in the collar upon the cap
of the cylindrical receiver. When this screw has sufficiently travelled, an arm
formed upon the stopper is stopped by the projections before named, depending
from the collar of the cap of the cylindrical receiver, and as the screw threads are
in contrary direction, the stopper unscrews itself relatively to the downward travel
of the neck.
The lengths of the screws are proportioned, so that when the neck piece is
screwed home in the orifice of the cylinder, the stopper has become completely
unscrewed, and falls into the cylinder, and thus allows the liquid acid to drop from
the spherical receiver and mix with the alkali.
A small chain is conveniently furnished, so that the stopper may not fall to the
bottom of the cylindrical receiver, and to permit of its being withdrawn when the.
apparatus is to be recharged.
I reserve to myself the right to so arrange the stopper and the neck piece that
the spherical container can rest upon the cylinder without being under pressure,
and that the simple movement of the handles shall suffice to free the stopper and
the acid from the sphere into the cylinder. The chemical action of the acid upon
the alkali will generally give the necessary pressure for the discharge of the liquid
at any desired point through a tap fitted to the cylinder.
FELL & WILDING,
Agents for the Applicant.

page_text: Improvements in Portable Fire Extinguishing Apparatus.
I, SAMUEL PEARCE WILDING, of the firm of Fell & Wilding, of 1 Queen Victoria
Street, in the City of London, Patent Agents, do hereby declare the nature of
this invention, a communication to me from abroad by Count Joseph Auguste
Mauclerc, of Paris, in the Republic of France, and in what manner the same is to
be performed to be particularly described and ascertained in and by the following
statement:-
The said invention relates to certain improvements in portable fire extinguishing
apparatus generally known as "extincteurs," and it is specially designed by a novel
arrangement of spherical acid receiver to allow of the same serving indefinitely,
and of fulfilling the double office of acid receiver and of an adequate stopper to
the pressure.
In order that the said invention may be the better understood, I now proceed to
describe the same in relation to the sheet of drawings hereunto annexed, reference
being had to the letters and figures marked thereon.
Like letters refer to like parts throughout the figures.
Figure 1 represents a sectional elevation of the apparatus, the spherical acid
receiver closed and stopping the cylindrical receiver, being screwed on this latter,
but only by 2 turns, which permits of the apparatus being transported without it
being necessary to put it under pressure. This spherical receiver might simply
rest upon the neck piece of the cylinder to stop it.
Figure 2 represents a similar view of the "extincteur," the spherical acid
receiver being reversed and resting upon the orifice of the cylinder in the position
which. it would occupy to be filled with acid.
Figure 3 represents on a reduced scale an outside elevation of the apparatus,
ready for use, and consequently under pressure.
The said invention consists of a cylindrical vessel a composing the body of the
apparatus and of a spherical receiver e which contains the acid.
The cylindrical receiver a is furnished with an upper orifice, fitted with a
collar b threaded with a female screw, designed to receive the male screw of the
neck piece g of the spherical receiver e overhead, and having at its lower part two
projections or stops c, the object of which will be described hereinafter This same
orifice is fitted with a funnel d rigid with or fixed to the cap of the cylindrical
receiver. The spherical receiver e is furnished with handles f, which are each fixed
thereto by a screw and interior nut soldered in place.
At the lower part of the spherical receiver and surrounding the orifice thereof
is fitted the neck piece g, suitably of brass, which is screw threaded to fit in the
female screw aforesaid formed in the collar b of the cylindrical receiver. The
lower part of this neck piece g is screw threaded on the inside, to receive the male
screw of a stopper h, the said screw being in a contrary sense to that of the neck
piece.
Gutta percha washers ensure the tightness of the joints of both receivers.
In a state of inaction, the cylindrical receiver a, or body of the apparatus, filled
with alkaline liquid, is stoppered by means of the spherical acid receiver aforesaid,
and the spherical acid receiver is in turn closed by means of the last named

page_text: stopper h. In order to obtain a mixture of the two liquids, that is to say to produce
instantaneous pressure, it is sufficient to turn the spherical receiver on the screw
thread in its neck piece g which engages with the screw thread in the collar upon
the cap of the cylindrical receiver. When this screw has sufficiently travelled, one
or more armsk formed upon the stopper h are stopped by the projections c aforesaid
depending from the collar b of the cap of the cylindrical receiver, and as the screw
threads on hand g are in contrary directions, the stopper unscrews itself relatively
to the downward travel of the neck.
The length of the screw threads are proportioned so that when the neck piece
is screwed home in the orifice of the cylinder, the stopper has become.completely
unscrewed, and falls into the cylinder, and thus allows the liquid acid to drop from
the spherical receiver and mix with the alkali. A small chain is conveniently
furnished, so that the stopper may not fall to the bottom of the cylindrical receiver,
and to permit of its being withdrawn when the apparatus is to be recharged.
I reserve to myself the right to so arrange the stopper and the neck piece that
they can rest upon the cylinder without being under pressure, and so that a simple
turn of the handles shall suffice to free the stopper, and the acid into the cylinder.
The chemical action of the acid upon the alkali will generally give the necessary
pressure for the discharge of the liquid at any desired point through a tap fitted
to the cylinder.
Having now fully described and ascertained the nature of the said invention,
and in what manner the same is to be performed, I declare that what I claim is
The new system of fire extinguisher characterised by the disposition of parts
and the combination with the cylinder a containing alkaline liquid of a spherical
acid receiver forming or carrying the neck piece of the system and arranged in
such a manner as to produce the closure of the said cylinder a at the same time
as the release of its own contents, substantially as and for the purposes specified.