Year: 1885

page_text: I, GEORGE AUGUSTUS MORISON Merchant of 94 Montgomery street of Jersey
City in the County of Hudson and State of New Jersey, United States of America
do hereby declare the nature of this invention to be as follows:-
The object of this Invention is to provide fire extinguishers for putting out fires
in vessels and other places and which shall be simple in construction convenient
and inexpensive and reliable in operation.
.
The invention consists in the construction and combination of the various parts
of the fire extinguisher as will be hereinafter fully described.
The apparatus comprises a case of galvanized sheet iron or other suitable
material designed to be secured to the ceiling of a room by buckets or other
suitable means.
Around the base of the case is formed an annular chamber, and in the lower
part of the shell of the said case are formed a number of openings leading into the
said chamber. In the lower part of the case is secured by lugs or other suitable
means a vessel having two concentric circular trays, the wall of the inner tray
being lower than the wall of the outer tray.
There are three or more curved rods the lower ends of which rest upon the
bottom and against the walls of the outer tray or the case and their upper ends
rest against the upper part of the wall of the said case. The middle parts of the
rods converge and are connected by a wire which rests in a circumferential groove
in the shell of a glass vessel so that the said rods and wire serve as a stand to
support the said vessel and secure it in place. The glass vessel is made of oblong
form, and is closed except a small opening in its lower end which is closed by a
stopper of rubber or other suitable non corrosive material. The stopper is perforated
longitudinally and in the said perforation is secured the open upper end of a small
glass tube. The lower end of the glass tube, is closed, and in the side of its lower
part is formed a recess in which is secured by wire, or other suitable means a
cartridge to which are connected the ends of two conducting wires the other ends
of which are connected with the poles of an electric machine or battery and are also
provided with an ordinary circuit closer.
The upper end of the case is closed by a cover having a tubular mouth closed by
a bulb of thin rubber

page_text: In using the fire extinguisher the glass vessel is filled with acid, and a suitable
quantity of soda is placed in the annular chamber and in the two trays.
The glass tube and stopper are inserted in the opening in the end of the glass
vessel and the said vessel is secured in the stand with the stopper downward.
The glass vessel should be of such a size as to contain enough acid to fill the
trays and overflow into the annular chamber around the case.
With this construction when the electric circuit is closed, the current of electricity
explodes the cartridge and thus breaks the glass tube and allows the acid in the
glass vessel to flow out slowly into the central tray and cause the formation of
carbonic gas to begin. When the central tray is filled the acid overflows into the
next tray and the volume of carbonic gas generated is increased. When the two
trays are filled, the acid overflows into the annular chamber and the volume of
carbonic gas generated is still further increased. As the case becomes filled with
carbonic gas the said gas enters the rubber bulb expands and bursts the said bulb
and escapes into the room extinguishing the fire.
By separating the soda in this. way into parts and causing the discharge of the
acid to be gradual the boiling over of the acid and the consequent injury to
whatever may be beneath the apparatus is prevented and the entire quantity of
soda and acid is utilized.

page_text: Improvements in Fire Extinguishers.
I GEORGE AUGUSTUS MORISON, of 94 Montgomery Street, Jersey City in the
County of Hudson and State of New Jersey United States of America, Merchant,
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 fire extinguishers for putting out fires
in vessels and other places, and which shall be simple in construction, convenient
and inexpensive, and reliable in operation.
The Invention consists in the construction and combination of the various parta
of the fire extinguisher as will be hereinafter fully described and then claimed.
Reference is to be had to the accompanying drawings forming a part of this
specification in which figure 1 is a sectional side elevation of one of my improved
fire extinguishers, parts being broken away; figure 2 is a sectional plan view of
the same taken through the broken line xxx figure 1. Similar letters of
reference indicate corresponding parts in all the figures.
A represents a case of galvanized sheet iron, or other suitable material and which
may be made of any convenient size or shape. The case A is designed to be
secured to the ceiling of a room by buckets B or other suitable means. Around
the base of the case A is formed an annular chamber C and in the lower part of the
shell of the said case are formed a number of openings D leading into the said
chamber C. In the lower part of the case A is secured by lugs E or other suitable
means a vessel composed of two concentric trays F. G. The wall of the tray F is
made lower than the wall of the tray G and the openings D are near the bottom
of the case A as shown in figure 1. H are three, or more, curved rods the lower
ends of which rest upon the bottom and against the walls of the tray G or case A
and their upper ends rest against the upper part of the wall of the said case A.
The middle parts of the rods H are connected by a wire I which rests in a
circumferential groove in the shell of a glass vessel J so that the said rods and wire
serve as a stand to support the said vessel and secure it in place. The glass vessel J
is made of oblong form and is closed except a small opening in its lower end which
is closed by a stopper K of rubber or other suitable non corrosive material. The
stopper K is perforated longitudinally and in the said perforation is secured the
open upper end of a small glass tube L. The lower end of the glass tube L is
closed and in the side of its lower part is formed a recess in which is secured by
wire or other suitable means a cartridge M to which are connected the ends of two
conducting wires N. O whose other ends are connected with the poles of an electric
machine or battery and are also provided with an ordinary circuit closer. The
upper end of the case A is provided with a cover P in the centre of which is
secured a short tube Q open at both ends To the upper end of the tube Q is
secured a bulb R of thin rubber.
In using the fire extinguisher, the glass vessel J is filled with acid and a suitable
quantity of soda is placed in the annular chamber C and the two trays F G. The
tube L and stopper K are inserted in the opening in the end of the glass vessel J
:

page_text: and the said vessel is secured in the stand H I with the stopper downward. The
glass vessel J should be of such a size as to contain enough acid to fill the trays FG
and overflow into the annular chamber C. With this construction when the
electric circuit is closed the current of electricity explodes the cartridge M and thus
breaks the glass tube L and allows the acid in the glass vessel J to flow out slowly
into the central tray F and cause the formation of carbonic gas to begin. When
the tray F is filled the acid overflows into the next tray G and the volume of
carbonic gas generated is increased. When the two trays F G`are filled the acid
overflows into the annular chamber C and the volume of carbonic acid generated
is still further increased. As the case A becomes filled with carbonic gas, the said
gas enters the rubber bulb R expands and bursts the said bulb and escapes into
the room extinguishing the fire. By separating the soda in this way into parts
and causing the discharge of the acid to be gradual, the boiling over of the acid and
the consequent injury to whatever may be beneath the apparatus is prevented and
the entire quantity of soda and acid is utilized.
Having now particularly 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;-
In a fire extinguisher, the combination with the case A having openings D and
annular chamber C and the trays F G concentric with each other and with the
chamber C of the suspended glass vessel J having discharge opening in its lower
end and the glass tube L secured in the said discharge opening, baving closed
lower end and provided with a cartridge M connected by wires NO with the poles
of an electric machine or battery, substantially as herein shown and described
whereby a gradual formation of carbonic acid gas is secured, as set forth.