Improvements in and connected with Fumigators, applicable also for other purposes.
Year: 1897

page_text: Date of Application, 18th Nov., 1897
Complete Specification Left, 23rd Apr., 1898-Accepted, 15th Oct., 1898
PROVISIONAL SPECIFICATION.
Improvements in and connected with Fumigators, applicable also
for other purposes.
We, ALFRED GEORGE MELHUISH, of 20, Hinckley Road, East Dulwich, and
ERNEST WILLIAM BEECH, of 11, The Pavement, Wanstead, E., Engineers, do
hereby declare the nature of this invention to be as follows:-
This invention relates primarily to fumigators & consists in attaching a pneu-
matic ball or other contrivance for forcing air, to a nozzle or fine outlet arranged
in conjunction say with a bowl that can be filled say with tobacco, or it may
be some medicinal herb. The nozzle opens into a tube preferably of larger
diameter, & a hole is pierced in the bowl to communicate with said larger tube,
the nozzle or fine outlet or outlets into said larger tube being so arranged that
upon the ejector being operated it injects the air through the larger tube and
draws down a supply of smoke through the pipe bowl in strong quantities for
distribution say upon the stems of plants infected with the green fly, the tobacco
being of course lit by a flame in the first instance. If medicinal or other herbs
be used the apparatus may be employed for a variety of purposes. The smoke in
this case is drawn down by the injector action of the air blast, but we may if
desired use two valves so that a positive suction may occur through the bowl
to draw smoke into the pump which upon compression can be forced through
a second valve for fumigating or other purposes, the valves of course being so
arranged that one opens inwards on the suction of the pump and the other out-
wards on compression.
Dated this 18th day of November 1897.
ALFRED GEORGE MELHUISH.
E. W. BEECH.
Improvements in and connected with Fumigators, applicable also
for other purposes.
We, ALFRED GEORGE MELHUISH, of 20, Hinckley Road, East Dulwich, and
ERNEST WILLIAM BEECH, of 11, The Pavement, Wanstead, E., Engineers, 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 primarily to fumigators and consists in attaching a
Die 077

page_text: pneumatic ball or other contrivance for forcing air through a nozzle or fine outlet,
arranged in conjunction say with a bowl that can be filled with tobacco, or it may
be some medicinal herb. The nozzle opens into a tube, preferably of larger
diameter and a hole is pierced in the bowl to communicate with said larger tube.
The nozzle or fine outlet or outlets into said larger tube being so arranged that
upon the ejector being operated it injects the air through the larger tube, and
draws down a supply of smoke through the bowl in strong quantities, for distribu-
tion say upon the stems of plants infected with green fly. The tobacco being of
course lit by a flame in the first instance.
If medical or other herbs be used, the apparatus may be employed for a variety
of purposes.
In the foregoing the smoke is drawn down by the injector action of the air
blast, but we may if desirable use two valves so that a positive suction may occur
through the bowl, to draw smoke into the pump which upon compression can be
forced through a second valve for fumigating or other purposes, the valves of
course being so arranged that one opens inwards on the suction of the pump and
the other outwards on compression.
Our invention will be fully understood upon reference to the accompanying
sheet of drawings in which Fig. 1 is a transverse section of one form of fumigator.
Fig. 2 is an alternative form.
Fig. 3 shews the same device but operated by a pump instead of india rubber
ball.
Fig. 4 is a sectional view of an apparatus that may be used in connection with
a flower pot or other receptacle for the fumigating material.
Fig. 5 shews an apparatus that may be used for drain testing purposes, as also
does Fig. 6 in which an india rubber tube is attached.
In carrying out our invention it will be seen that we employ an old & well
known principle, viz. that of inducing air currents to promote combustion by
means of an injector, but that we specially construct the several parts with a view
to mechanical efficiency & cheapness of production as well as making it adaptable
for a variety of purposes such as testing drains fumigating rooms & hot houses
from the outside, so that the person operating the apparatus will be out of the way
of any obnoxious fumes.
Referring to Fig. 1 we preferably make the nipple A of metal either spun
or stamped with a hole B in the thin end of such metal, so that there is no lodge-
ment for dirt or nicotine, as is the case if a long passage be used. The ball C,
is attached to the nipple A which in turn is inserted in the stem D of the bowl E
in such position it forms and is used as a handle by which the apparatus can be
operated with one hand while the other is left free for separating the leaves of
the plant.
In Fig. 2 the stem & howl is made of metal the latter being inserted in the
stem & secured in any convenient manner. The pulsating ball is slipped over
the injector tube and secured in the manner shewn, this tube can be withdrawn
and inserted in any easy and expeditious manner. Or instead of a ball a pump
plunger may be used as in Fig. 3. If large quantities of smoke are required
then we may use the device shewn in Fig. 4, in which a flower pot or other large
receptacle to hold the fumigating material can be placed & supported on the
flange F.
If the fumes are required in say a hot house then the device shewn in
Fig. 6, is preferably used the tube G being flexible and having a float at the
end may be passed through a water trap which will effectually seal & prevent the
smoke from coming in contact with the operator who in this case can produce
the necessary combustion by means of a pair of bellows H, or other form of air
Dump. Or in some cases the induced current may be obtained automatically by the
introduction of a fuse as in Fig. 5.
In Fig. 6 it will be seen that no deleterious smell can escape to the outside
by reason of the cap I which effectually seals the bowl yet at the same time the

page_text: water, upon operation of the bellows will rise beyond the bottom edge by the
suction caused, & allow air to pass through to support combustion. This device
is also applicable to drain testing purposes as the float by being inserted in the
trap of a closet will carry the smoke into a drain, & by escaping say at a broken
joint or other leakage discover the faulty place to the operator.
In all the preceding figures the combustion of the material in the bowl has been
obtained by a suction caused by an injector, but we may however, employ a more
direct method that is to say the smoke may be positively drawn into the pump C
through a non return valve a as in Figure 7 & upon compression of the ball c
be forcibly ejected through another non return valve 6 into the stem D, & thence
by india rubber or other flexible tubing into a drain in which the smoke may be
accumulated to any desired pressure. Or we may as in Fig. 8, fit a surrounding
cork to the nipple A for insertion into the spout of a kettle or boiler, to cause in
induced draught for combustion by means of a steam jet in which case the
pump C is not required.
Having particularly described and ascertained the nature of the above invention
and in what manner the same is to be performed we declare that what we claim
is:-
(1) A device for fumigating plants hot houses or rooms so constructed that the
pulsating hall, or pump for injecting air forms a handle by which the apparatus
is held, and the combination therewith of a metal nipple with a thin hole to pro-
vide against stoppage by dirt or nicotine as described with reference to Fig. 1.
(2.) The combination with a metal bowl inserted in a metal stem, of a sliding
injector stem, surrounder by an elastic ball and secured thereto as shewn in
Figure 2.
3. Providing the bowl of a fumigating apparatus with a floating cap immersed
in water, and the combination of same with a stem having an injector operated
by bellows or other pump.
4. The combination with either of the foregoing constructions of an india
rubber tube and float for the purpose specified.
5. An injector stem & flange for large receptacle as in Fig. 4.
6. The combination with a fumigating bowl of a pump, india rubber ball & inlet
and outlet valves as shewn in Fig. 7.
7. An injector action to promote combustion by means of a fuse as in Fig. 5.
Dated this 23rd day of Anril 1808
ALFRED GEORGE MELHUISH.
ERNEST WILLIAM BEECH.