Improvements in Chemical Fire-extinguishing Apparatus.
Year: 1887

page_text: Date of Application, 20th Dec., 1887
Complete Specification Left, 19th Sept., 1888
Complete Specification Accepted, 19th Oct., 1888
Improvements in Chemical Fire-extinguishing Apparatus.
I, JAMES HASLAM of Bury Road, Tonge near Bolton in the County of Lancaster,
Chemical Engine Manufacturer, do hereby declare the nature of my said invention
to be as follows:-
This invention relates to improvements in what are known as chemical fire
extinguishers in which a vessel containing water or water in solution with a carbonate
or alkaline compound and a bottle containing acid are employed and consists in providing
means for effectually and readily charging and breaking the said bottle so as to mix
the acid with the water. The case of the extinguisher is made in any suitable form
and of suitable materials and is provided at its upper or lower end or on its side with
a metallic nozzle fitted with either a swivelling lid or cover or a hinged cap. The
swivelling lid or cover is secured to the nozzle by fastenings formed partly by
segmental ribs on the outside of the nozzle and segmental recesses or lips on the lid
or cover, and the hinged cap by a swivelling handle or other equivalents. The joint
is made by means of an india-rubber ring or its equivalent. The india-rubber ring is
fitted with a hollow tube or its equivalent which is employed for breaking the acid
bottle by concussion; the outer end of the tube or its equivalent extending through
the cap or cover to the outside to allow of the said bottle being broken by striking
the knob or its equivalent.
In lieu of the india-rubber ring the hollow tube or other plunger can pass through
a stuffing box. A suitable spring can be employed for pressing or holding the acid
bottle in its receiving chamber in the extinguisher to prevent the same being broken
when handling only. The extinguisher is provided with an internal tube perforated
at the opposite end to the outlet, the latter being provided with a tap or otherwise.
If desired the plunger can be made on the screw principle passing through a stuffing
box with a handle on the outside. If desired the swivelling or hinged covers can be
dispensed with the case of the extinguisher being hermetically sealed by any suitable
means.

page_text: This invention allows of the fire extinguisher being made light and portable on
the principle of the hand grenade, the same being provided with means to bang the
same in convenient positions.
D 11.
حيمد
בז
1007
EDMUND CHADWICK, C.E., Fel. Inst. P.A.,
92, St. George's Road, Bolton,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Chemical Fire-extinguishing Apparatus.
I, JAMES HASLAM of Bury Road, Tonge near Bolton in the County of Lancaster,
Chemical Engine Manufacturer, do hereby declare the nature of my said 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 to improvements in what are known as chemical fire-
extinguishers in which a vessel containing water or water in solution with a carbonate
or alkaline compound and a bottle containing acid are employed and consists in
providing means for effectually and readily charging and breaking the said bottle so
as to mix the acid with the water. The case of the extinguisher is made in any
suitable form and of suitable materials and is provided at its upper, or at its lower
end, or on its side with a metallic nozzle fitted with either a swivelling lid or cover or
a hinged cap. The swivelling lid or cover is secured to the nozzle by fastenings
formed partly by segmental ribs on the outside of the nozzle and segmental recesses
or lips on the lid or cover, and the hinged cap by a swivelling handle or other
equivalents. The joint is made by means of an india-rubber ring or its equivalent.
The india-rubber ring is fitted with a hollow tube or its equivalent which is employed
for breaking the acid bottle; the outer end of the tube or its equivalent extending
through the cap or cover to the outside to allow of the said bottle being broken by
striking the knob or its equivalent.
The extinguisher is provided with an internal tube perforated at the opposite end to
the outlet, the latter being provided with a tap or otherwise.
If desired the swivelling or hinged covers can be dispensed with the case of the
extinguisher being hermetically scaled by any suitable means.
This invention allows of the fire extinguisher being made light and portable, the
same being provided with means to hang in convenient positions.

page_text: Fig. 1 is a sectional elevation of my improved chemical fire extinguisher Fig.
is a part enlarged sectional elevation of the nozzle and hinged cap or cover, and Fig. 3
is a plan of Fig. 2.
In all the figures the same letters are used to indicate corresponding parts.
A is the case of the extinguisher which can be made of any suitable material, such
as, copper, tinned iron, and others. On the upper end of the case A is secured the
metallic nozzle B to which is attached the hinged cap or cover D by the pin C. The
cap or cover D is provided with the cavity X to receive the ring %, which may be of
india-rubber or other substance most beneficial for the purpose. The ring Z is provided
with the hole to allow vapor or pressure to escape as it is generated through the
heat of the room or other place the extinguisher may be located in, also to prevent
the liquid being forced up the pipe R. Immediately the acid bottle E is broken the
pressure generated thereby forces the disc H against the underside of the ring Z and
closes the hole Q, which causes all the liquid to be forced out of the extinguisher
through the nozzle S on the upper end of the pipe R. On the hinged cap or cover D
is mounted the swivelling handle W by the ferrule or hollow centre Y; the latter
being secured by the ends being bent over as shown or in any other convenient
manner. To the swivelling handle W is attached the lip V which slides under the
bayonet or other projection T on the outside of the nozzle B when the hinged cap or
cover C is closed over the nozzle B as shown in Figs. 2, and 3. When the hinged
cap or cover D is closed over the nozzle B the ring Z is pressed onto the outer
edge O, by which a perfectly tight joint is made, pressure being imparted by the
action of the lip V on the swivelling handle Win sliding under the bayonet
projection T. When it is necessary to raise the hinged cap or cover D the handle W
is swivelled sideways as in dotted lines in Fig. 3, thereby removing the lip V from
under the projection T.
E is the acid bottle which sits on the concaved cross bar F
attached to the case A. The acid bottle E is made with the indents G¹ to facilitate
handling when passing it through the nozzle B to the cross bar F. For the purpose
of breaking the acid bottle E I mount the ring Z on the spindle G with the disc H.
The ring Z is pressed tightly on the spindle G, by which the latter is held clear of
the bottle E by the elasticity of the ring Z. Over the spindle G is mounted the
ferrule I resting on the top side of the ring Z. On the top end of the ferrule I is
mounted the knob J screwed to the spindle G. The acid bottle E is broken by
striking the knob J which forces the spindle G and disc H onto the top side of the
bottle E. Immediately the knob J is struck and the pressure is removed therefrom it
assumes its normal position by the elasticity of the ring Z.
If desired the lever K-shown in dotted lines in Figs. 2 and 3-can be employed
for pressing or striking the knob J to break the bottle E.
The extinguisher case A is provided with the outlet pipe R perforated at the
bottom end, and through which the liquid is forced when the bottle E has been
broken.
Fig. 4 is a sectional elevation of another modification of my invention wherein
the spindle G and disc H operate on the upper side of the ring Z, and presses the
same on the bottle E to break the same when the knob J is struck. In other respects
this modification is similar to that shown in Figs. 1, 2, and 3.
Fig. 5 is a sectional elevation of one modification of my invention Fig. 6 is a
sectional plan through line E F in Fig. 5 showing segmental ribs, and Fig. 7 is
a side view of Fig. 5.
A is the case of the extinguisher to which is secured the nozzle B provided with
the elongated end O to operate against the ring Z in the metallic ring U attached
to the swivelling lid or cover D. The outside of the nozzle B is provided with the
segmental ribs T. The swivelling lid or cover D is fitted with the ring U provided
with the recess or cavity X to receive the ring Z. The ring U is secured to the lid
or cover ) by the screwed stem Y and nut K². The lower end of the lid or
cover D is provided with the segmental ribs V, by which the same is securely
fastened when swivelled under the segmental ribs T on the nozzle B. The segmental
ribs T are tapered as shown in Fig. 7 so that when the ribs V on the lid or cover D

page_text: are swivelled under the same an increased pressure is imparted to the joint ring Z.
Immediately pressure is imparted to the joint ring Z it becomes stationary
along with the ring U; the latter allowing the lid or cover D to swivel round its
outer surface.
In the ring is mounted the spindle G carrying the disc H for the purpose
of breaking the bottle E by striking the knob J on the spindle or stem G.
Fig. S is an outside view of a light portable fire extinguisher with my improved
cap and attachments for breaking the acid bottle applied thereto. The case A is
fitted with the handle or hook N₁ to allow of the same being hung in any convenient
position.
Fig. 9 is an outside view of a light portable fire extinguisher with my improved
cap and attachments for breaking the acid bottle mounted on the side. In this case
the extinguisher is made with solid ends.
Fig. 10 is a modification wherein the swivelling cap or hinged cover is dispensed
with, the case A being hermetically sealed after the solution and acid bottle È have
been admitted.
The ring Z, the stem or spindle G, and the disc H are secured between the ring
or washer and the bottom D', both of which are secured to the case A in any
convenient manner. The acid bottle E is mounted between the disc H and the con-
caved frame F, and is broken by striking the knob J.
Although I have shown the acid bottle E and the means for breaking the same at
the bottom end of the extinguisher I would have it understood that they can be
placed at the top end of the same without departing from the principle of this
invention.
Having now 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 :--
1. In combination with a chemical fire extinguisher the use of the stem or spindle G
and the disc H, applied and operating substantially as described and as shown on the
drawings for the purpose specified.
2. In combination with a chemical fire extinguisher the use of the hole or passage Q
in the ring for the purpose specified.
3. Constructing acid bottles for chemical fire extinguishers with the indents G¹,
substantially as described and as shown on the drawings for the purpose specified.
4. The use of the ferrule Y for securing the swivelling handle W to the
cover D, substantially as described and as shown on the drawings in Figs. 1, 2, 3,
and 4.
5. The respective combinations and arrangements of parts forming 'my improved
nozzle with the means for breaking the bottle, substantially as described and as shown
on the drawings in Figs. 1 to 9 inclusive.
6. Constructing chemical fire extinguishers and the means for breaking the bottle,
substantially as described and as shown on the drawings in Fig. 10.
Dated the 13th September 1888.
EDMUND CHADWICK,
Agent.