Year: 1886

page_text: Date of Application, 1st June, 1886.
Complete Left, 1st Mar., 1887.
Complete Accepted, 1st Apr., 1887.
I, ROBERT TEBBS of 41 Silver Street, Stepney in the County of Middlesex, Seeds-
man, do hereby declare the nature of this invention to be as follows:-
==
My invention has reference to apparatus for atomizing liquids or reducing them to
the state of mist or spray, such apparatus being specially applicable for use in gardens
or greenhouses in order to apply a mist or spray of tobacco water or other liquid to
plants or shrubs.
My improved apparatus is composed of a barrel fitted with a piston and piston rod.
which latter is provided with a handle behind the barrel, these parts being generally
similar to the corresponding parts of an ordinary garden syringe. The piston rod is however
made tubular and is fitted into a central aperture in the piston, and the handle is made with
a longitudinal channel through which the tubular piston rod extends. To a cup upon
the rear part of the barrel is screwed or attached the mouth or neck of a reservoir
containing the liquid to be atomized; this reservoir is supplied with the liquid and
attached to the cup when in a position the reverse of the normal position; the reservoir
has an air inlet pipe which extends to, or nearly to, what in the normal position is the
top. The cup is formed with an aperture from which a tube, preferably flexible, is led
to a cylindrical or other shaped receiver which I will call the charge chamber.
Within this charge chamber is a small pipe extending from end to end thereof but
having an opening at the rear end to allow the liquid to enter it from the chamber.
In front of the charge chamber is a nozzle and the small pipe is prolonged from the
chamber to the front end of this nozzle with which it is concentric. The nozzle is in
communication by an air pipe with a cap that is screwed or attached to the barrel.
There is an air vent between the charge chamber and the nozzle.
The action of the apparatus is as follows:-The liquid in the reservoir flows by
gravity through the elastic tube and fills the charge chamber. When the piston is
drawn back in the barrel by means of the handle in the ordinary manner it does not
draw in liquid, but air, which flows into it through the handle and through the tubular

page_text: piston rod. Then in again driving the piston forward, the palm or hollow of the hand
must be placed against the end of the handle so as to close the channel therein and
prevent the escape of air, or a valve may be fitted for this purpose. The air in the
barrel is thus forced through the cap at the end and thence through the air pipe to the
nozzle. The air passes out of the nozzle in a strong annular blast and draws and
forces the liquid from the charge chamber through the liquid pipe which liquid on
meeting the blast of air becomes atomized or reduced to the state of mist or spray
being at the same time driven some distance forwards. As the liquid leaves the
charge chamber its place is filled with the air that enters through the air vent before
referred to such air tending to force it out. While the piston is being drawn back
ready for the next discharge the charge chamber becomes again filled from the
reservoir. The nozzle is preferably inclined upwards; this enables the liquid to be
discharged in an upward direction under the leaves of plants or shrubs and also tends
to prevent the liquid running out of the nozzle when the apparatus is at rest.
The apparatus has the advantage of being readily convertible into a syringe. For
this purpose the reservoir, charge chamber, nozzle and cap are removed; a plug is
fitted into the end of the tubular piston rod and an ordinary perforated cap or rose
is screwed or attached to the front end of the barrel.
Among the novel features of my apparatus I may mention the tubular piston rod
and handle, the liquid reservoir and charge chamber in communication with each
other, the combined air and liquid nozzle in communication with the pump barrel and
charge chamber, and the convertibility of the apparatus from a mist or spray
producer to a syringe and vice versa. The reservoir is not necessarily attached to the
apparatus; when it is desired to carry a comparatively large quantity of liquid the
reservoir may be slung on the shoulder but connected by a flexible tube with the
charge chamber.
TEL: 1-4
1000

page_text: Improvements in Apparatus for Atomizing Liquids so as to Produce
Mist or Spray, Specially Applicable for Garden or Greenhouse
Purposes.
I ROBERT TEBBS, of 41 Silver Street, Stepney, in the County of Middlesex, Seeds-
man 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 has reference to apparatus for atomizing liquids, or reducing them to
the state of mist or spray, such apparatus being specially applicable for use in gardens
or greenhouses in order to apply a mist or spray of tobacco water or other liquid to
plants or shrubs.
My improved apparatus is composed of a barrel fitted with a piston and piston rod
which latter is provided with a handle behind the barrel, these parts being generally
similar to the corresponding parts of an ordinary garden syringe. The piston rod is
however made tubular and is fitted into a central aperture in the piston, and the
handle is made with a longitudinal channel through which the tubular piston rod
extends. To a cup upon the rear part of the barrel is screwed or attached the mouth
or neck of a reservoir containing the liquid to be atomized, this reservoir is supplied
with the liquid and attached to the cup when in a position the reverse of the normal
position; the reservoir has an air inlet pipe which extends to, or nearly to, what in the
normal position is the top. The cup is formed with an aperture from which a tube,
preferably flexible, is led to a cylindrical or other shaped receiver which I will call the
charge chamber. Within this charge chamber is a small pipe extending from end to
end thereof but having an opening at the rear end to allow the liquid to enter it from
the chamber. In front of the charge chamber is a nozzle and the small pipe is
prolonged from the chamber to the front end of this nozzle with which it is concentric.
The nozzle is in communication by an air pipe with a cap that is screwed or
attached to the barrel. There is an air vent between the charge chamber and the
nozzle.
Figure 1 of the annexed drawings is a longitudinal section and Figure 2 a side view
of an apparatus constructed according to my invention. a is the barrel, the piston,
c the piston rod and d the handle. The piston rod c is hollow and fits at front into a
central aperture in the piston while at back it extends through the handle d as shown.
e is a reservoir to contain the liquid to be atomized; its mouth or neck is screwed or
attached to a cup at the rear of the barrel; it must be supplied with the liquid and
then screwed to the cup when in a position the reverse of the normal position seen
in the figures. g is an air inlet pipe to the reservoir extending to nearly the top of
same. is a tube preferably flexible leading from an aperture in the cup to a
receiver which I call the charge chamber. kis a small pipe in this chamber
extending from the front end to the rear end or nearly so, but having either an
opening or sufficient clearance at the rear to allow the liquid to enter it from the
chamber i. I is a nozzle attached to the front of the charge chamber; the small pipe k
extends to the front end of this nozzle with which it is concentric. The nozzle is
preferably attached to the charge chamber by screwing and the communication between
them is restricted to the small pipe k and an air vent m. n is an air pipe putting the
nozzle in communication with a cap o that is screwed or attached to the barrel a. In

page_text: practice I find it convenient to cast the air pipe n and cap o in one piece with a hollow
part p which the upper side of the nozzle fits and to which it can readily be united
by soldering or other like means.
:-
The action of the apparatus is as follows The liquid in the reservoir e flows by
gravity through the tube and fills the charge chamber i. When the piston bis
drawn back in the barrel a by means of the handle d in the ordinary manner it does
not draw in liquid, but air which flows into the barrel through the handle and through
the tubular piston rod. Then in again driving the piston forward the palm or hollow
of the hand must be placed against the end of the handle so as to close the channel
therein and prevent the escape of air or a valve may be fitted for this purpose. The
air in the barrel is thus forced through the cap o and thence through the air pipe n
to the nozzle. The air passes out of the nozzle in a strong annular blast and draws
and forces the liquid from the charge chamber i through the pipe & which liquid on
meeting the blast of air becomes atomized or reduced to the state of mist or spray
being at the same time driven some distance forwards. As the liquid leaves the charge
chamber its place is filled with the air that enters through the air vent m such air
tending to force it out. While the piston is being drawn back ready for the next
discharge the charge chamber i becomes again filled by gravitation from the reservoir.
The nozzle is preferably inclined upwards, as shown; this enables the liquid to be
discharged in an upward direction under the leaves of plants or shrubs and also tends
to prevent the liquid running out of the nozzle when the apparatus is at rest. In
carrying the apparatus, that is to say, when not actually using it, its position should
be reversed so that as the reservoir e is at the under side the liquid will not be
liable to flow into and through the charge chamber i and escape by the nozzle l.
The apparatus has the advantage of being readily convertible into a syringe. For
this purpose the reservoir e, charge chamber i, nozzle and capo are removed; a screw
or other plug is fitted into the front end of the tubular piston rod and an ordinary
perforated cap or rose is screwed or attached to the front end of the barrel.
Among the novel features of my apparatus I may mention the tubular piston rod
and handle, the liquid reservoir and charge chamber in communication with each other,
the combined air and liquid nozzle in communication with the pump barrel and charge
chamber, and the convertibility of the apparatus from a mist or spray producer to a
syringe, and vice versa. The reservoir e is not necessarily attached to the apparatus;
when it is desired to carry a comparatively large quantity of liquid the reservoir
may be slung on the shoulder and be connected by a flexible tube with the-charge
chamber i.
.
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. An apparatus constructed and acting substantially as hereinbefore described for
atomizing liquids so as to produce mist or spray.
2. In an apparatus of the kind herein referred to, a tubular piston rod and handle
allowing air to flow through them into the barrel as they are drawn back, substantially
as set forth.
3. In an apparatus of the kind herein referred to, a liquid reservoir and a charge
chamber in communication with each other, substantially as set forth.
4. In an apparatus of the kind herein referred to, a combined air and liquid nozzle
in communication with the pump barrel and with the charge chamber, substantially as
set forth.
Dated this First day of Munch 1007
J. C. MEWBURN,
169, Fleet Street, London,
Agent.