Improvements in Cleaning or Dressing Grain and Seed, and in Apparatus therefor.
Year: 1889

page_text: Date of Application, 4th Feb., 1889
Complete Specification Left, 4th Nov., 1889-Accepted, 7th Dec., 1889
MOTIONAL DE POLPICATION
Improvements in Cleaning or Dressing Grain and Seed, and in
Apparatus therefor.
We JAMES HORNSBY, of the firm of Richard Hornsby and Sons Limited, of
Spittlegate Iron Works, Granthum, in the County of Lincoln, Engineers and Iron-
founders, and (HARLES JAMES of Spittlegate Iron Works, Grantham aforesaid,
Mechanic, do hereby declare the nature of this invention to be as follows :-
Our invention relates to the cleaning of grain and other seeds in what is called the
second dressing apparatus of a threshing or winnowing machine, and to apparatus
therefor.
In order to get the dirt from the grain or seeds we connect the second dressing
riddle box, by a spout, to the inlet or inlets of the fan used to provide a forced draught
for the first drossing apparatus, so as to cause a part or the whole of the air required
for this fan to be drawn through the second dressing riddle box. The usual
regulating slides or valves are provided at the ends of the fan for regulating the
supply of air.
We sometimes prefer to use in the second dressing apparatus, as is usual, the forced
draught of a fan, and lead the blast from it through the second riddle box, by a spout
or shoot, into the air inlet or inlots of the first dressing apparatus fan.
Dated the 4th day of February 1880
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION
Improvements in Cleaning or Dressing Grain and Seed, and in
Apparatus therefor.
We, JAMES HORNSBY, of the firm of Richard Hornsby and Sons Limited, of
Spittlegate Iron Works, Grantham, in the County of Lincoln, Engineers and Iron-
founders, and CHARLES JAMES, of Spittlegate Iron Works, Grantham aforesaid,
Mechanic, 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:-
Our invention relates to the cleaning of grain and other seeds in what is called the
second dressing apparatus of a threshing or winnowing machine and to apparatus
therefor, the object being to dispense with the fan or blower which is generally used in
conjunction with the said apparatus.
According to our invention we connect the second dressing apparatus by a spout to
the inlet or inlets of the fan used to provide a forced draught for the first dressing
apparatus so as to cause a part or the whole of the air required for this fan to be drawn
through the second dressing apparatus and thereby remove a great part of the dirt
from the grain or seeds passing therethrough. The usual regulating slides or valves
are provided at the ends of the fan for regulating the supply of air.
To enable our invention to be fully understood, we will describe how it can be
carried into practical effect by reference to the accompanying drawing, in which
Figure 1 is a longitudinal section of a part of a threshing or winnowing machine
having our improvements applied thereto, and
Figure 2 is a transverse vertical section on the line, x of Figure 1.
Similar reference letters indicate similar parts in both the figures.
a is the second dressing apparatus, and b, are the riddles contained therein. cis
the spout which connects the said dressing apparatus a with one (or both) of the inlets of

page_text: the fan d, the said fan serving, in the usual manner, to provide a forced draught for the
first dressing apparatus e. The usual slides or valves are provided at the ends of
the fan for regulating the supply of air, and a hinged valve ƒ' is also provided in the
spout for the same purpose.
By this arrangement a part (or the whole) of the air required for the fan d is drawn
through the second dressing apparatus a between the riddles b, the air at the same
time removing the greater part of the dirt from the grain or soeds passing through the
sail apparatus.
For removing the heavy dirt and refuse from the second dressing apparatus a and
which is not drawn away by the fund, we provide a shoot g into which it falls, the
said shoot heing inclined so that the dirt passes onto the shog board or bottom shon or
through a valve and through a shoot to the outside of the machine.
We sometimes, however, prefer to use in the second dressing apparatus, as is usual,
the forced draught of a fan, and lead the blast from it by a spout or shoot into the air
inlet or inlets of the first dressing apparatus fun.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:
--
(1.) In a threshing er winnowing machine connecting the fan used to provide the
forced draught for the first or lower dressing apparatus to the top or second dressing
apparatus so as to draw a current of air over and under the riddles in the said top or
second dressing apparatus, substantially as and for the purpose set forth.
(2.) In a threshing or winnowing machine constructed as described in the preceding
claiming clause, the arrangement of shoot and valve by which the heavy dirt and
refuse that is not drawn away by the current of air passing through the fan for the
first or lower dressing apparatus can be passed either onto the shog board or shoe or
outside the machine substantially as described and illustrated in the accompanying
drawing.
(8.) The manufacture and use of the improved apparatus for dressing grain and
seed substantially as hereinbefore described and illustrated in the accompanying
drawing.
Dated the 4th day of Navami 1880