provements in Automatic Spraying Devices.
Year: 1898

page_text: PROVISIONAL SPECIFICATION
Improvements in Automatic Spraying Devices.
I, ADRIEN ALFRED YVERT, of 18, Rue Mogador, Paris, in the Republic of
France, Manufacturer, do hereby declare the nature of this invention to be
as follows:-
My invention has for its object a spraying or atomising device acting auto-
matically and capable of being applied to the atomisation of any liquid and
particularly to the spraying or atomisation of the compound called "la bouillie
bordelaise which is used for destroying mould.
It is characterized by the combination with the main reservoir containing the
liquid to be sprayed, of an arrangement of an accessory reservoir capable, if
desired, of being placed in communication with the main reservoir, and forming
a motor gas producer intended to exert on the liquid contained in the main
reservoir the necessary pressure for forcing it to the outside and spraying it. The
motor gases which may be produced for this object are various, I will indicate
more particularly for this purpose the use of hydrogen gas which may be produced
rapidly in very large quantity so as to obtain immediately a considerable
pressure.
I will now describe as an example an accessory reservoir constituting the
generator of the pulveriser, the said generator being essentially arranged for
producing hydrogen gas and constituting the essential element of my invention,
whilst the main reservoir which contains the liquid to be sprayed may assume
any suitable form and be arranged in such a way as to be able to be easily carried
by the workman who is operating the spraying. This generator may be arranged
in such a way as to be fixed or portable. The apparatus is more particularly
arranged so as to be fixed and it is for this object mounted on a support which
enables it to be revolved on a suitable axis for effecting the discharging.
This generator is formed of a reservoir divided into two parts; a lower part
or cylinder and an upper part or cover which carries a cylinder descending down
into the lower part of external cylinder. This interior cylinder has two gratings,
between which a suitable quantity, say 15 kilogrammes of iron filings is placed.
In the lower part is placed a mixture of water and commercial sulphuric acid
which is capable of being handled without danger, a suitable quantity being
7 litres of water and 3 litres of acid. The acid may be transferred into the
reservoir containing it by means of a siphon from one or more stoneware bottles
of three litres which are conveyed to the fields.
This having been done, the upper part of the apparatus is fitted on.
A tap
being closed, the liquid cannot encounter the iron filings. It is prevented doing
this by the air contained in the upper chamber and this liquid is consequently
forced between the cylinders and the lower part of the generator which together
form a double cylinder. It cannot descend on the iron filings until, when the
upper part has been bolted on, the said tap is opened.
ED 077

page_text: With the indicated proportions of water and acid the pressure cannot rise
above 7 kilogrammes. At this pressure the liquid is forced between the two
cylinders and no longer is in contact with the iron.
When the acid is almost exhausted the reaction becoming less active the tap
aforesaid is placed in communication by a tube of indiarubber with a tap com-
municating with the annular space between the two cylinders which causes a
larger quantity of liquid to descend upon the iron filings and after the complete
exhaustion of the latter the upper part of the reservoir is unbolted and the water
charged with sulphate of iron is withdrawn, which after cooling may be utilized
for another operation. Sulphate of iron is deposited which may be employed; for
the destruction of moulds and insects. The liquid still containing half the acid,
it will only be necessary then in order to again charge the generator to add
1 litres of acid which will considerably reduce the expense.
In order to empty the reservoir it is only necessary to cause it to revolve on its
trunnions in order to easily remove the whole of the sulphate of iron formed.
Dated this 7th day of July 1898.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.
Improvements in Automatic Spraying Devices.
1, ADRIEN ALFRED YVERT, of 18, Rue Mogador, Paris, in the Republic of
France, Manufacturer, 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 for its object a spraying or atomising device acting auto-
matically and capable of being applied to the atomisation of any liquid and
particularly to the spraying or atomisation of the compound called "la bouillie
bordelaise which is used for destroying mildew.
It is characterized by the combination with the main reservoir containing the
liquid to be sprayed, of an arrangement of an accessory reservoir capable, if
desired, of being placed in communication with the main reservoir, and forming
a motor gas producer intended to exert on the liquid contained in the main
reservoir the necessary pressure for forcing it to the outside and spraying it. The
motor gases which may be produced for this object are various, (hydrogen,
ammonia and the like) I will indicate more particularly for this purpose the use
of hydrogen gas which may be produced rapidly in very large quantity so as
to obtain immediately a considerable pressure.
In order to allow of the description being better understood I will now refer
to the accompanying drawings in which as an example.
Figure 1 shows a sectional elevation of the accessory reservoir constituting the
generator of the spraying apparatus, said generator being essentially arranged for
producing hydrogen gas and constituting the essential part of the invention,
whilst the main reservoir which contains the liquid to be sprayed may assume any
suitable form and be arranged as shown in Figure 2 in such a way as to allow of
its being easily carried by the workman who is effecting the spraying. The
generator may be arranged in such a way as to be fixed or portable, the apparatus
shown in Figure 1 being more particularly intended to be fixed and for this
purpose it is shown mounted on a support which allows of it being revolved in
suitable trunnions to enable it to be emptied.
Figure 2 is an elevation of the whole apparatus arranged so as to be portable.

page_text: The generator shown in Figure 1 is formed of a reservoir divided into two
parts; a lower part or cylinder A B C D provided with an overflow tap S and
an upper part or cover G H which carries a cylinder descending down to F
in the lower part of external cylinder. This interior cylinder has two grat-
ings I between which a suitable quantity, say 15 kilogrammes of iron filings
is placed. In the lower part A B C D is placed a mixture of water and commercial
sulphuric acid which is capable of being handled without danger, a suitable
quantity being 7 litres of water and 3 litres of acid. The acid may be trans-
ferred from the storage reservoir containing it by means of a siphon into one or
more stoneware bottles of three litres which are conveyed to the fields.
This having been done, the upper part of the apparatus which comprises also
a discharge tap R, a mano-meter K and a safety valve J is fitted on. The tap R
being closed, the liquid cannot encounter the iron filings. It is prevented doing
this by the air contained in the upper chamber E F G H and this liquid is
consequently forced between the cylinder A B C D and the lower part of the
generator, which together form a double cylinder. It cannot reach the iron
filings until, when the upper part has been bolted on, the tap R is opened.
With the indicated proportions of water and acid the pressure cannot rise
above 7 kilogrammes. At this pressure the liquid is forced between the two
cylinders and no longer is in contact with the iron.
When the acid is almost exhausted the reaction becoming less active, the
taps R & S are placed in communication with one another by a tube of india-
rubber which causes a larger quantity of liquid to reach the iron filings and
after the complete exhaustion of the latter the upper part of the reservoir is
unbolted and the water charged with sulphate of iron is withdrawn which after
cooling may be utilised for another operation. Sulphate of iron is deposited which
may be employed for the destruction of moulds and insects. The liquid still con-
taining half the acid, it will only be necessary then in order to again charge
the generator to add 1 litres of acid which will considerably reduce the expense.
In order to empty the reservoir A B C D, it is only necessary to cause it to
revolve on its trunnions in order to easily remove the whole of the sulphate of
iron formed.
The apparatus shown in Figure 2 comprises, in addition to the accessory
reservoir 2 (which is similar to that shown in Figure 1 with the sole difference
that it is closed at its upper part by a cap or plug 14 similar to that employed for
autoclaves), a main reservoir 1 containing the liquid to be sprayed and provided
at its upper part with a closing plug 15 screwed into a suitable opening formed
at the top of the reservoir which serves to enable it to be charged. Said reservoir
communicates with the exterior by means of a pipe 4, and with the gas apparatus 2
by a pipe 5 fitted with a tap 6. The apparatus 2 in turn communicates with a
reservoir 3 containing acid, and this communication is by means of a pipe 7 on
which a tap S or other suitable regulating device is fitted, which the workman
can open or close at will by means of a handle or drawbar 9. A funnel 10 provided
with a tap 11 allows of acid being introduced into the reservoir 3 when desired.
The whole of the apparatus is completed by an arrangement of shoulder strap
or support 12 to fit over the workman's shoulders.
A three-legged arrangement 13 is provided to allow of the apparatus being
maintained in a vertical position while being filled.
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 automatic spraying apparatus, characterised by the combination with
a main portable reservoir containing the liquid to be atomised of an arrangement
of accessory reservoir, portable or otherwise, capable of being placed in com-
munication when desired with the main reservoir and forming a producer of
motive gases intended to exert on the liquid contained in the principal reservoir

page_text: the necessary pressure for forcing it to the exterior and spraying it, substantially
as hereinbefore described and shown as an example in the accompanying drawing.
2. As an essential constituent element of the described spraying apparatus,
a gas-generating apparatus formed of a reservoir divided into two parts fitting
one in the other with a free space remaining between them and having the usual 5
accessory safety devices, the gas being produced in the internal reservoir from
whence it escapes to the exterior of the apparatus, and forcing the active liquid
to the periphery by its own pressure when the escape of said gas to the exterior
of the apparatus is shut off, substantially as herein before described and shown as
an example in the accompanying drawings.
1900
1
WM. P. THOMPSON & Co.,
Patent Agents, of Liverpool, Manchester, Birmingham and London.