IMPROVEMENTS IN HAND-GRENADES FOR EXTINGUISHING FIRE to be as follows:-
Year: 1885

page_text: I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake, and Co Patent Agents,
Southampton Buildings in the County of Middlesex, do hereby declare the nature
of my invention for "IMPROVEMENTS IN HAND-GRENADES FOR EXTINGUISHING FIRE
to be as follows:-
"
This invention relates particularly to hand grenades or fire extinguishers which
are thrown so as to be broken, whereby a material is liberated for extinguishing
the flames.
In carrying the said invention into practice I employ a receptacle of frangible
material, preferably of glass, and of convenient size, and shape. The said recep-
tacle is provided with a mouth or opening in which is secured a stopper. A liquid
fire-extinguishing material of any suitable kind is contained in the receptacle.
Extending through the stopper is a vent by means of which gases generated by
the fire extinguishing material may escape, so that the liability of the receptacle to
bursting by reason of an undue pressure of gas is avoided. This vent may consist
of a tube of glass or other suitable material. It is advantageous to arrange a
twist or curl in said vent-tube in order that the receptacle may be inverted without
the liquid contained therein flowing out through the vent.
The vent tube may also be provided with a bulb-shaped portion near the outer
end, in which portion gases generated within the receptacle may separate from any
liquid which may pass with them into the tube. I prefer that the hole through
which the vent tube passes should be countersunk in such a manner as to prevent
the bulb-shaped portion from coming into contact with any object and so being
destroyed.
SAAM
HASELTINE, LAKE & Co.,
For the Applicant.

page_text: Improvements in Hand-grenades for Extinguishing Fire.
I, HENRY HARRIS LAKE, of the firm of Haseltine Lake & Co Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 :—
This invention relates particularly to hand grenades or fire extinguishers which
are thrown so as to be broken whereby a material is liberated for extinguishing
the flames.
In carrying my said invention into practice I employ a receptacle of flangible
material preferably of glass and of convenient size, and shape. The said receptacle
is provided with a mouth or opening in which is secured a stopper of any suitable
material. A liquid fire extinguishing material of any suitable kind is contained
in the receptacle.
Extending through the stopper is a vent whereby gases generated in the fire
extinguishing material may escape, and the liability of bursting the receptacle due
to an undue pressure of gas is avoided. This vent will preferably consist of a tube
of glass or other suitable material. It is advantageous to arrange a twist or curl
in said vent tube for the reason that by so doing the receptacle may be inverted
and the liquid contained therein will not flow out through the vent. Said vent
tube may also be provided with a bulb shaped portion near the outer end in which
gases generated within the receptacle may separate from any liquid which may
pass with them into the tube. I prefer that this bulb shaped portion shall be
countersunk in the stopper in such manner as to prevent the bulb shaped portion
from coming in contact with other objects and so become destroyed.
In the accompanying drawings Figure 1. is a side elevation partly in section of
a fire extinguisher embodying my improvement, and Figure 2 is a detail view
thereof. Similar letters of reference designate corresponding parts in both figures.
A designates a receptacle for fire extinguishing material. It is made of frangible
material, preferably glass, and may be of any desired shape. It is adapted to
contain a liquid fire extinguishing material which may be of any suitable kind.
Within the mouth of the receptacle and extending for a short distance above the
same is secured a stopper B which may be of any suitable material. This stopper
has extending centrally through it an aperture. A hollow tube C extends through
the aperture and into the receptacle. The tube C is as shown made of glass but
other material may be used. It has formed in it a twist or curl a. More than
one of these twists or curls may be employed if desirable. The twist or curl is
within the stopper as shown. Beyond the twist or curl or nearer to the exterior
of the stopper the tube is provided with a bulb shaped portion 6 having an opening
to the external atmosphere. This bulb provides a chamber in which gas generated
in the receptacle may separate from the liquid in case liquid gets into the tube.
This bulb is however not wholly essential and may be omitted if desirable. As
will be seen the bulb like portion b is countersunk in the stopper B. By this
means the bulb is prevented from coming in contact with other objects, and
consequently protected from breakage,

page_text: It will be perceived that communication between the interior of the receptacle
and the external atmosphere is established by means of the tube C, whereby gas
is generated in the extinguishing fluid may escape and the bursting of the receptacle
from undue pressure of gas is avoided at the same time the shape of the tube is
such that the communication between the interior of the receptacle and the external
atmosphere is circuitous and should the receptacle become from any cause inverted,
the liquid extinguishing material will not flow out, thus resulting in loss of the
material.
Having thus particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
First. The combination with a frangible receptacle adapted to contain liquid
fire extinguishing material, of a tube extending into the interior of the receptacle
and provided with a twist or curl whereby a circuitous communication is afforded
between the interior of the receptacle and the external atmosphere substantially as
specified.
Second. The combination with a frangible receptacle adapted to contain liquid
fire extinguishing material, of a tube extending into the interior of the receptacle
and provided with a twist or curl whereby a circuitous communication is afforded
between the interior of the receptacle and the external atmosphere, and a bulb like
portion as b in said tube substantially as specified.
Dated this 5th day of December 1885.
HASELTINE, LAKE & Co.,
For the Applicant.