Improved Pump Apparatus for Forcing Liquid Out of a Vessel for Spraying and other Purposes.
Year: 1892

page_text: Date of Application, 26th May, 1892
Complete Specification Left, 24th Feb., 1893-Accepted, 15th Apr., 1893
PROVISIONAL SPECIFICATION.
Improved Pump Apparatus for Forcing Liquid Out of a Vessel for
Spraying and other Purposes.
I, PAUL KÖTHNER, of Markgrafenstrasse 29 Berlin, Germany, Merchant do
hereby declare the nature of this invention to be as follows:-
My invention relates more particularly to that description of apparatus for pro-
ducing liquid spray wherein a current of air is forced by a pump through a nozzle
surrounding a second nozzle on a tube the lower end of which is immersed in the
liquid to be sprayed.
According to my present invention instead of working the said pump by direct.
downward pressure exerted on the piston rod, against the action of a spring which
effects the return stroke, as was heretofore done, I connect the piston by a pivotted
link to a lever handle pivotted to the pump barrel which handle is worked up and
down by hand for imparting the reciprocating motion to the piston.
The pump barrel has at bottom a vertical passage leading down into the vessel
containing the liquid to be sprayed, which passage is closed by a valve consisting
by preference of a disc of fine wire gauze on which is loosely placed a disc of
celluloid or other suitable material.
Below this valve the said passage has a lateral nozzle through which passes the
bent end of the small tube that leads down into the liquid.
On raising the piston of the pump by the handle, the outer air is drawn in
through the nozzle, raising the celluloid disc and passing freely through the wire
gauze disc into the pump.
On the downward motion of the piston the air is forced out of the pump barrel,
closing down the celluloid valve, but passing round the periphery thereof through
the wire gauze and out through the nozzle again, while at the same time it exercises
a pressure on the liquid in the vessel thereby forcing the liquid up the tube and out
through the nozzle, where it is sprayed by the air jet.
The pump is connected to the vessel containing the liquid in any suitable
known air tight manner, such as by a cork or other plug fitting the mouth of the
vessel.
Dated this 26th day of May 1892.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Pump Apparatus for Forcing Liquid Out of a Vessel for
Spraying and other Purposes.
I, PAUL KÖTHNER of Markgrafenstrasse 29, Berlin, Germany, 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 :-
My invention relates more particularly to that description of apparatus for pro-
ducing liquid spray wherein a current of air is forced by a pump through a nozzle
surrounding a second nozzle on a tube the lower end of which is immersed in the
liquid to be sprayed.
According to my present invention instead of working the said pump by direct
downward pressure exerted on the piston rod, against the action of a spring which
effects the return stroke, as was heretofore done, I connect the piston by a pivotted
[D027

page_text: link to a lever handle pivotted to the pump barrel which handle is worked up and
down by hand for imparting the reciprocating motion to the piston.
I will proceed to describe the apparatus with reference to the accompanying
drawing in which
Fig. 1 shews a vertical section of the pump and spraying device,
Fig. 2 an elevation of the complete apparatus,
Fig. 3 a horizontal section through the nozzle, and
Fig. 4 detached details.
A is the air pump and B the receptacle containing the liquid. The pump
consists of a barrel in which is a piston that is moved up and down by a hand
leverd and connecting link c. The lever d is pivotted to an eye e by means of a
pin. In the bottom of the cylinder is a valve i of any suitable simple construction,
which allows the air to be drawn up out of the vessel B and passage a¹ and to be
forced back into the same.
In the example shewn at Fig. 4, the valve consists of a disc of fine wire
gauze and a solid disc lying upon the same which may be of celluloid or similar
material.
On the upstroke of the piston the disc rises from its seat so as to leave the
wire gauze free for the passage of the air from the vessel B and passage a'. On
the down stroke of the piston the air presses the disc on to the wire gauze and
then passes round and below the disc through the wire gauze into the passage a¹.
Thus on the upstroke of the piston the air will be rarefied in a¹ and B and fresh
air will enter through the nozzle y into the vessel B and below the piston. On the
down stroke of the piston the air in the vessel will be compressed and the liquid
will consequently be forced up through the air tube h and the nozzle while at the
same time a portion of the compressed air will also issue through the nozzle so as
to convert the issuing liquid into spray.
9,
The pump is provided with a suitable screwed_connection such as m, by means
of which it is secured either directly to the vessel B, or to a stopper k fixed securely
therein.
The air pump and, the vessel for the liquid can be of any suitable material and
may be made of any shape; the apparatus may be used for spraying scents and
other liquids.
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 :-
In apparatus for spraying scents and other liquids the combination of an air
pump worked by a pump handle with a receptacle for the liquid, having a nozzle
and discharge tube substantially as described.
Dated this 23rd day of February 1893
ABEL & IMRAY,
Agents for the Applicant.