An Improvement in Air Blast Nozzles for Distributing Pulverulent Matters over Plants or Soil.
Year: 1890

page_text: Date of Application, 19th May, 1890
Complete Specification Left, 16th Feb., 1891-Accepted, 21st Mar., 1891
PROVISIONAL SPECIFICATION.
An Improvement in Air Blast Nozzles for Distributing Pulverulent
Matters over Plants or Soil.
I, HERBERT EDMUND MOUL, of 31, St. Petersburg Place, Bayswater, in the
County of Middlesex, Engineer, do hereby declare the nature of this invention to
be as follows:
In the air blast nozzles usually employed for distributing pulverulent matters
over plants or soil, material to be distributed is introduced into the blast pipe, and
the air current, carrying the material with it, is broken up or subdivided by inclined
partitions in the nozzle. When the substance to be distributed is of a somewhat
deliquescent character, such as nitrate of soda, portions of it become attached to
the deflecting partitions and form a coating which becomes more and more thickened
until the passages are seriously obstructed.
The principal object of my invention is to obviate this difficulty which I effect
by directing the air blast into the desired directions before the substance to be
distributed is admitted to mix with it. I therefore spread out the mouth of the
blast pipe and divide this widened part by oblique partitions, preferably so arranged
as to divide the outlet into passages of approximately equal areas. Beyond
these partitions, the material to be distributed is admitted to mix with the blast
whilst it is still confined within an expanding mouth piece, which may be hinged so
that it can be directed at various angles. I prefer to make a removeable cover to
the mouth piece beyond the inlet for the material.
Dated this 19th day of May 1890.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improvement in Air Blast Nozzles for Distributing Pulverulent
Matters over Plants or Soil.
I, HERBERT EDMUND MOUL, of 31, St. Petersburg Place, Bayswater, in the
County of Middlesex, Engineer, 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 :-
In the air blast nozzles usually employed for distributing pulverulent matters over
plants or soil, material to be distributed is introduced into the blast pipe, and the
air current, carrying the material with it, is broken up or sub-divided by inclined
partitions in the nozzle.
When the substance to be distributed is of a somewhat deliquescent character,
such as nitrate of soda, portions of it become attached to the deflecting partitions and
form a coating which becomes more and more thickened until the passages are
seriously obstructed.
The principal object of my invention is to obviate this difficulty which I effect
by directing the air blast into the desired directions before the substance to be.
distributed is admitted to mix with it. I therefore spread out the mouth of the
blast pipe and divide this widened part by oblique partitions, preferably so arranged
as to divide the outlet into passages of approximately equal areas. Beyond these
partitions, the material to be distributed is admitted to mix with the blast whilst it
is still confined within an expanding mouth piece, which may be hinged so that it
[Price 6d]

page_text: can be directed at various angles. I prefer to make a removeable cover to the
mouth piece beyond the inlet for the material.
Fig. 1 is a longitudinal section and Fig. 2 is a plan of a distributing_nozzle
according to my invention. The part A forms the continuation of the pipe conducting
the air blast to the nozzle. Bis the opening by which the material to be distributed
is fed into the nozzle. Between A and B the air passage at C is expanded in width
and lessened in depth, retaining uniform area of section, and is divided by divergent
partitions so formed and arranged as to divide equally the area of passage for the
air, so as to produce a set of equal divergent currents directed against the material
,descending through the opening B. In many cases it is of advantage to provide
a shield H to shelter the pulverulent material when it descends from an exposed
feed. In order to provide for directing the blast of material more or less
upwards or downwards I hinge two plates E E¹ between the upper plate D and the
lower plate G of the mouth piece, and I connect them by a strip F with a number
of holes through it so that the plates E E¹ can be held at various distances apart
by pins passed through the holes of F, and both can be held up as indicated
by the dotted lines in Fig. 1 by a spring pin K entering one of the holes of F.
Having thus described the nature of this invention, and in what manner the
same is to be performed, I would have it understood that I make no general claim
to nozzles for distributing pulverulent matters by a blast of air, but what I claim
in respect of such nozzles, is :-
1. Arranging the deflecting partitions so as to divide and direct the air blast
before it reaches the matter to be distributed, substantially as and for the purpose
set forth.
2. Forming the mouthpiece between a pair of hinged plates so that the discharge
can be directed at various elevations without altering the position of whole nozzlė;
substantially as described.
Dated this 12th day of February 1891.
ABEL & IMRAY,
Agents for the Applicant.