Year: 1887

page_text: Date of Application, 9th Apr., 1887
Complete Left, 6th Jan., 1888
Complete Accepted, 9th Apr., 1888
I, JOHN EDWARD LONG, of the City of Brooklyn, State of New York, United
States of America, gentleman, do hereby declare the nature of this invention to be as
follows:-
My invention relates to a Hand Fire Extinguisher and it belongs to that class
wherein a hand pump is attached to and connected with a portable reservoir in such a
manner as that an extinguishing fluid may be withdrawn from the reservoir and
projected upon a fire by the hand pump.
And it particularly consists, first, in causing the extinguishing fluid to be retained
or sealed within the reservoir during the non-use of the apparatus and prevented from
circulating through or coming in contact with the working parts of the pump, and
permitting a ready opening of the connections between the pump and the reservoir
when the apparatus is required for use, and it consists, secondly, in combining with a
device to form an air vent for supplying air to the reservoir as the fluid is withdrawn,
an opening through which the said reservoir may be replenished.
I have designed several devices for the carrying out of the principles of my
invention, namely, the sealing of the fluid within the reservoir and away from the
pump during the non-use of the apparatus, but they all embody the same general
form.
The form I prefer consists of a reservoir of a size to be conveniently handled with
one hand, and of an elongated cylindrical form. A band pump having a nozzle is
attached to one side of this reservoir and parallel to the axis thereof, and is adapted to
withdraw fluid from the reservoir through a connecting pipe and eject it through the
nozzle in a stream or spray. In this connecting pipe, between the pump and the
reservoir, is placed a valvular device adapted to close said pipe when so desired, and
this valvular device may be in the form of a stop cock operated by a handle from
without. I prefer, however, to connect this valvular device with the piston rod of the
pump in such a manner that a drawing back of the pump piston to operate the pump
will necessarily open the pipe between the reservoir and the pump.
Dated this 26th day of March-1887.
JOHN EDWARD LONG.

page_text: COMPLETE SPECIFICATION.
Improvements in Hand Fire Extinguishers.
I, JOHN EDWARD LONG, of the City of Brooklyn and State of New York, United
States of America, Gentleman, 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 :-
My invention relates to a hand-fire extinguisher and it belongs to that class
wherein a hand pump is attached to and connected with a portable reservoir in such
manner as that an extinguishing fluid may be withdrawn from a reservoir and
projected upon a fire, by the hand pump, and my invention consists, first, in certain
devices whereby the extinguishing fluid is retained or sealed within the reservoir
during the non-use of the apparatus and prevented from circulating through or
coming in contact with the working parts of the pump and which will permit a ready
opening of the connections between the pump and the reservoir to allow a withdrawal
of the fluid from said reservoir by the pump when required for use. And it consists,
secondly, in combining with a device to form an air vent for supplying air to the
reservoir as the fluid is withdrawn, an opening through which the said reservoir may
be replenished.
My invention is illustrated in the accompanying drawings, in which
Figure 1 is a side elevation of my improved hand-fire-extinguisher partly broken
away to illustrate the working parts.
Figures 2 and 3 show modifications in the sealing devices.
Figure 4 is a perspective view on an enlarged scale of the locking mechanism as
shown in Figure 1.
Figure 5 is a sectional view of the air vent and replenishing opening as shown in
Fig. 1, and
Figure 6 shows a modification of the air vent and replenishing opening.
It will be readily understood by those familiar with this class of extinguishers, and
upon an examination of the drawings that the chief end sought by my invention is to
retain the fire extinguishing fluid sealed within the reservoir till such time as it is
required for use in extinguishing a fire, and at such time to permit the connections to
be easily opened to permit the pump to operate upon the said fluid to project it
through a suitable nozzle upon a fire. This sealing of the fluid within the reservoir is
desirable, not only to prevent its deterioration by continued contact with the
atmosphere during the non-use, of the extinguisher, but also as a means of protecting
the working parts of the pump from the corrosive action of the fluid which during a
long period of rest might so act upon the pump as to render it inoperative.
I have shown several methods by which this sealing of the fluid within the reservoir
may be accomplished but I prefer to use the mechanism as shown in Figure 1,
wherein, A is a reservoir for containing the fire-extinguishing fluid and is preferably
made cylindrical in shape and of such a size as to be easily portable. B is a pump

page_text: cylinder preferably attached to one side of the reservoir by a yoke C secured
permanently to one side of the reservoir and a T coupling as hereafter described.
The pump cylinder B has fitted in it a piston E and piston rod F extending
outwardly, through its upper end and provided with a handle f by which it may be
operated.
The T coupling D (see Figs. 1 and 7) is formed so that one arm d will receive the
lower end of the pump cylinder B. A second arm is extended and has formed therein
in line with the pump cylinder, a valve seat d¹ and a second valve seat d² and is then
bent around towards the reservoir A and joined thereto so as to form a channel d¹
through which the fluid may pass from the reservoir to the pump. The third arm G
of the T coupling is extended towards and attached to the reservoir A and the
opening therein is extended by means of a tube H through the reservoir and out
through the end thereof to form an outlet or nozzle through which the fluid may be
projected by the pump.
Within the arm G of the T coupling is formed a valve seat g supplied with a ball
valve gl opening from the pump and a cross pin g2 is placed across the opening in the
arm G to limit the movement of this ball valve. In the lower arm of the T coupling
the valve seat d² is provided with a ball valve d³ adapted to prevent a return of the
fluid from the pump to the reservoir and a cross pin do is placed above the ball valve d³
to limit its movement.
A valve I is fitted upon the lower end of the piston rod F and adapted to seat itself
upon the valve seat d' in the T coupling and in line with the pump cylinder when the
piston rod is pressed down and when so closed to prevent a passage of the fluid from
the reservoir to the pump.
In order to facilitate the seating of the valve I upon the valve seat d¹ and to permit
the locking of the valve in its closed position, I make the closing cap K at the upper
end of the pump cylinder with a cylindrical neck k extending for a short distance
along the piston rod F and embracing the same; and form spiral slots k¹ k¹ through
opposite points in its sides so that a pin L. through the piston rod and extending on
opposite sides thereof will, when the piston rod is pressed down enter the slots and
with a further downward pressure and a turn of the said piston rod, force the valve I
down upon its seat d'.
For the purpose of securing the valve in its closed position the spiral slots k¹ k
may run for a short distance in a horizontal direction or may be notched out on their
upper side.
In lieu of the locking device above described, the cylindrical portion k of the
head K may be internally threaded and the piston rod F exteriorly threaded for a
short distance.
I do not wish to confine myself to any precise method of seating and locking the
valve I upon its seat as many other means may be used which would easily suggest
themselves to a mechanic in constructing the device.
In Fig. 2 I have illustrated the Extinguisher as constructed in a modified
manner.
The seat in the T coupling as shown in Fig. 1 is dispensed with as is also the
valve I upon the end of the piston rod and a stop cock I is inserted in the passage d
leading from the reservoir to the pump, and this stop cock is adjusted to control the
flow of the fluid from the reservoir to the pump or to cut it off entirely.
In Fig. 3 I have shown still another modification in which both the valve as in
Fig. 1 and the stop cock as in Fig. 2 are dispensed with, and in their stead, a
frangible sealing disc 2, is seated upon the valve seat d¹ so as to close the opening
therein and a point 3 is arranged upon the end of the piston-rod so that an inward
push upon the piston-rod will cause the point 3 to puncture the disc 2 and form an
opening to permit the flow of the fluid from the reservoir to the pump. This sealing
disc 2 is preferably held in place by a prolongation of the threaded portion of the
pump cylinder B adapted to screw down through the cross of the T coupling and
bear upon
the upper side of the disc, though a separate device may be made to hold
the said disc in place...

page_text: It will readily be understood that in order to withdraw the fluid from the reservoir
by the pump it will be necessary to supply air to the reservoir as the fluid is with-
drawn and it is also advantageous to provide means whereby the reservoir may be
replenished with fluid. For this purpose I have devised a combined air vent and
replenishing opening which same is illustrated in Figure 5. M is a cylindrical
projection made in one with or attached to the reservoir A and having an inwardly
projecting annular rim m formed into a valve seat m¹ on its upward side. A cap N
is fitted over this cylindrical projection similar in construction to the cap K of the
pump, and a shaft is made to pass through the cap N and is provided with a cross
pin as in the piston rod F of the pump. The shaft O has fitted on its lower or inner
end a valve P adapted to seat itself on the valve seat m¹ and a handle R by means of
which it may be operated to raise or lower the valve P. One or more perforations m².
are made through the cylindrical projection M. above the seat m¹ so that when the
valve P is raised air may be allowed to enter the reservoir without the removal of the
cap N.
When it is desired to replenish the reservoir, the cap N may be removed and with
it the valve P and the fluid can then be poured in through the opening in the valve
seat m¹.
In lieu of the above described vent and replenishing opening I may construct said
opening as shown in Fig. 6 wherein the valve P and its operating stem are dispensed
with and a sealing disc 4 used in lieu thereof.
The disc 4 being held down upon the seat m¹ by the closing cap N, which cap in
this case is centrally perforated to expose a portion of the sealing disc 4 which may be
broken or punctured by a pointed implement from without and a vent opening thus
formed. A removal of the cap N, and the disc 4 will permit the filling of the
reservoir through the opening in the valve seat.
It is not necessary for the carrying out of my invention that the pump may be
incased in and entirely surrounded by the walls of the reservoir without materially
altering the functions of the several parts.
Having now particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1st. In a hand fire extinguisher the combination with a portable reservoir and with
a pump attached thereto of a valvular device attached to and actuated by the piston
rod of the pump to control the flow of the fluid from the reservoir to the pump.
2nd. In a hand fire extinguisher the combination with a portable reservoir and a
pump attached thereto of a valve mounted upon the piston rod to close the passage
leading from the reservoir to the pump.
3rd. In a hand fire extinguisher having a reservoir and a pump connected
therewith, a valve arranged upon the piston rod of the pump adapted to close the
passage leading from the reservoir to the pump substantially as and for the purpose
set forth.
4th. In a hand fire extinguisher the combination with a reservoir, a pump
connected therewith and a valve mounted upon the piston rod of the pump adapted to
close the passage between the reservoir and the pump of devices substantially such as
described, for retaining the valve in its closed position.
5th. In a hand fire extinguisher the combination of a reservoir, a force pump
connected therewith, a valve operated by the piston rod of the pump to close the
passage from the reservoir to the pump and mechanism whereby the valve may be
held in its closed position.
6th. In a hand fire extinguisher the combination of a portable reservoir, a pump
connected therewith and adapted to withdraw fluid from the reservoir and eject it
through a nozzle, a valve mounted upon the piston rod of the pump. and adapted to
close the passage from the reservoir to the pump and a locking device to hold the
valve in its closed position or to release the same.
7th. In a hand fire extinguisher the combination with a reservoir and a pump

page_text: connected therewith of a combined air vent and filling orifice substantially such as
described.
8th. In a hand fire extinguisher the combination with a portable reservoir and with
a force pump attached to and connected therewith of a valvular device interposed
between the pump and the reservoir and adapted to close or open the passage from
the one to the other, substantially as and for the purpose set forth.
9th. In a hand fire extinguisher the combination with a reservoir for containing
the extinguishing fluid of a combined air vent and replenishing orifice consisting of a
cylindrical projection, a valve seat therein, and a valve adapted to close said orifice or
to be removed to leave said orifice clear for the introduction of the fluid into the
reservoir.
10th. In a hand fire extinguisher the combination with a reservoir for holding the
extinguishing fluid of a cylindrical projection M thereon a valve seat m', a closing
cap N, a valve P and operating stem O and vent opening m² all substantially as and
for the purpose set forth.
A