Year: 1888

page_text: I PHILIP BORN of 11 Queen Victoria Street in the city of London, county of
Middlesex, Manufacturers Agent, 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 to a construction and arrangement of a combined air pump
and vessel to contain liquid with certain valves and tubes forming together apparatus
whereby a jet of finely divided liquid or spray mixed with air may be forceably
ejected for the purpose of destroying insects and other vermin on plants and elsewhere
and of applying directing and diffusing liquid, disinfectants, perfumes, and other
solutions.
The said apparatus is constructed and arranged as shewn in the drawing annexed
(which represents a longitudinal section thereof) and the means of carrying the
invention into practice will be clearly understood from the following description and
the said drawing
A is the vessel or reservoir for containing the liquid and is formed with an hemi-
spherical bottom and with a neck or inlet at the top (through which the liquid is
introduced) which inlet is provided with an air. tight stopper or plug a. B is an air
cylinder or pump barrel fixed air-tight to the vessel A and having within it an air-tight
piston C attached to a hollow trunk or tubular piston rod c which is provided at its
other end with a knob or handle k. An air passage J is formed in and through the
IDR77

page_text: piston C and provided with a valve opening towards the vessel A. and small holes c' c
are made in the hollow trunk c to admit air.
D is an air tube or blow pipe with a bell mouth or funnel shaped end communicating
with the air cylinder B by means of a suitable air passage and valve H opening from
the cylinder and into the tube D. L is an air tube connected with and leading from
the tube D upwards and terminating near to the top of the vessel A.
The tube D is continued from its funnel shaped end and passes air-tight through the
wall or skin of the vessel A and terminates with a nozzle or outlet d which nozzle may
be turned in any required direction. E is a tube of smaller diameter than the tube D
and carried within and concentric therewith from a point near to the nozzle d into
the vessel A where it is bent downwards as shewn and passing through a hole in the
tube D terminates at or about the centre of the hemispherical bottom of the vessel A
at which place it is connected with a flexible tube F of india rubber or other suitable
material.
८८
"
The flexible tube F has connected to its lower end a perforated metal inlet piece or
rose G and the length of the tube F is such that the rose G suspended thereby
shall hang near to but without touching the hemispherical bottom of the vessel A..
Since the point or place of suspension of the tube F is situated as above described
at or about the centre of the hemispherical bottom and lower part of the vessel A it
will be understood that if the vessel and apparatus be inclined at different angles with
an horizontal plane the rose G will still hang close to but without touching that
hemispherical surface.
'
In order to confine within suitable limits the movements of the flexible tube F and
the rose G relatively to the vessel A a conical or funnel shaped shield or guard fis
rigidly attached to the tube E in the position shewn.
a is a perforated plate fixed near the top of the vessel A to prevent solid matters
being introduced into it when the liquid is poured in; and b bare holes made near
the end of the air cylinder B to allow air to freely enter and leave the cylinder at
the back of the piston Caccording as the piston is pushed forward or drawn backward
in working the apparatus.
The apparatus above described is worked and used as hereunder set forth.
First, the stopper or plug a is removed, the vessel A is then nearly but not quite
filled with the liquid, and the stopper replaced. Having been thus charged; the
apparatus is ready for use as follows.
The nozzle d being pointed in the direction desired for the jet of spray, the piston C
is alternately pulled back and pushed forward by means of the knob K or other suitable
means. At each backward stroke of the piston a partial vacuum is formed- behind
the piston, causing the valve H to close, whilst air is sucked inwards through the
holes c¹¹ and thence along the hollow trunk c and through the air passage and
valve H into the tube D, the valve J closing, and the valve H opening in the well
known inanner of pump valves. The compressed air thus forced into the tube D in
part escapes through the nozzle d, and in part passes through the tube L into the
upper part of the vessel A where it causes a pressure upon the surface of the liquid
thus producing a jet of such liquid upwards through the rose G and the tubes F
and E and thence outwards through the nozzle d where the liquid jet unites with the
jet of air passing directly out of the tube D and becomes a jet of spray.
J
The part of the vessel A above the surface of the liquid forms an air chamber,
and the elasticity of the contained air allows a continuous jet of spray to be
produced and delivered wholly upon the desired object without the waste and uncer-
tainty of the ordinary syringe.
It will be seen also that by means of the flexible tube F (which allows the rose G
to keep close to the lowest point of the vessel A when that vessel is inclined at a
large angle with the horizontal) almost the whole of the liquid may be driven out as
-spray whilst the nozzle is pointed in any direction within a range of 45 degrees or
more upwards or downwards from a level line. Similar letters refer to similar parts
in the drawing:

page_text: 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.
1. In an apparatus for producing jets of spray substantially as herein described and
shewn in the acompanying drawing.
2. In an apparatus such as described, the combination of the vessel A, the air.
cylinder B, the piston C the tubes D, E, F and L and the rose G as and for the
purpose herein specified.
3. In an apparatus such as described the combination of the vessel A, the
tubes D, E, F and L, the rose G and the guard f the whole constructed and operating
substantially in the manner specified.
Dated : 201 T