An Improved Separator for Grain.
Year: 1895

page_text: Date of Application, 10th Apr., 1895
Complete Specification Left, 9th Jan., 1896-Accepted, 7th Mar., 1896
An Improved Separator for Grain.
JOHN ROSE 9 Poplar Grove Buckingham. Street Holderness Road Hull
Yorkshire Engineer do hereby declare the nature of this invention to be as
follows:-
There is a fan at the head end of the machine, with a spout or trunk extending
the full length of the machine, this spout or trunk is made or set at a suitable
incline (say about forty degrees from the horizontal line inclining upwards).
This spout or trunk is made narrow at the end next the fen, and larger at
suitable parts so as to give the necessary expansion to the air so that it will part
with any impurities taken out by the current of air from the fan. There is a spout
from each of the enlargements to take away the impurities.
An adjustable plate or board is fixed at the bottom end of the main spout or
trunk to take out anything that is heavior than the grain, such as stones.
The
grain enters the spout or trunk near the fans at right angle to the current and is
carried over this plate or board by the current of air from the fan, whilst heavior
substances such as stones fall on the plate or board which is set at a suitable
incline so that anything falling on it will run out of the machine.
The grain then passes unto a sieve. The tail spout through which the grain
leaves the sieve is carried up to the first mentioned spout or trunk under which an
expansion chamber is formed.
There is a spout from each side of the expansion chamber to each side of the fan.
Valves are arranged in the spouts to regulate the current.
Other machines such as
screens, scourers, and the like can be applied to this separator.
It will thus be seen that the current of air is first drawn through the clean grain
as it leaves the machine, which takes out any impurities and discharges it in the
expansion chamber, the air then passes to the fan by the two side spouts, it is
then driven through the dirty grain as it enters the machine. Thus the current of
air is used twice over.
Doted this Eighth dor of Anil 1805
An improved separator for Grain,
JOHN ROSE 9 Poplar Grove Buckingham Street Hull, 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 :-
There is a fan at one end of the machine, with a spout, or trunk, extending to
the other end of the machine, this spout, or trunk, is made, or set at a suitable
incline, say about forty degrees from the horizontal line, inclining upwards. There
is an expansion.chamber connected to the end of the inclined spout, or trunk, into
which light impurities are discharged.

page_text: An adjustable plate, or board is fixed in the bottom end of the inclined spout,
for the purpose of taking out any substances that are heavier than the grain, such
as stones, pieces of metal, peas and the like.
There is a sieve placed under the inclined spout, to separate impurities, that are
larger and smaller than the grain. The grain, leaving the sieve passes into the
discharge spout, or trunk, which is vertical."
An expansion chamber is connected to it, whilst there is a spout on each side
of the machine, connecting the expansion chamber to the fan.
Refering to the drawing, which is a longitudinal, sectional elevation, A is the
inlet for grain, B is the hopper, C is an automatic feed gate, 1) is the fan, E is the
adjustable plate, for dividing heavier substances such as stones, metal, peas, and
the like, from the grain. E is the adjustment, which consists of a toothed wheel
on a cross shaft, working in the rack connected to the plate, E' is the adjusting
lever, with a thumb screw, to secure it in position, is a valve by which heavy
substances pass out of the machine, G the course of grain to the sieve, H is the
inclined spout, or trunk H' is a baffle board, I is an expansion chamber, J is the
screenings outlet, K is the outlet for the fan, L is an automatic feed gate. M is
the sieve, M¹ is the channel for the outlet of large impurities, M is the outlet for
small impurities, N is the aspirating trunk. O is an expansion chamber which is
connected to the vertical trunk N, the top part of the expansion chamber is formed
by turning the vertical trunk over at the top, in the form of a semicircle, the front of
the expansion chamber is secured to the outer part of the semicircle, whilst the
back part is secured to the vertical trunk N. the inner circle is brought down to
the level of the bottom of the outlet Q, in working, the light impurities are lifted
up the vertical trunk N, over the circular top and falls down to the bottom of the
expansion chamber, and then passes out by the valve P.
Qis one of the outlets by which the air leaves the expansion chamber Ọ, there
being one on each side of the expansion chamber. Q¹ is a spout connecting the
expansion chamber O to the fan D. Qis the inlet to the fan, there is a like
spout on each side of the machine. R is an adjustable valve to admit air, if
needed. R is an adjustable valve to regulate the current of air to the fan D.
S is the outlet for grain. T and T' are the inlets for pure air.
The machine can be made any width to suit the purpose for which it is required,
and, can be divided by a partition in the trunk H, the fan D, the sieve M, the
trunk N, and the expansion chamber O. By these means, two different kinds, or
sizes of grain can be dealt with at one and the same time.
It will thus be seen that a thin stream of grain enters the inclined trunk H,
where it comes in contact with a powerful current of air, from the fan D, by which
it is thrown up the inclimed trunk, according to its weight, the good grain
falling on the bottom whilst the light impurities are carried forward into the
expansion chamber I. The adjustable plate E, is moved up to the edge of the
grain and the heavier substances such as stones, metal, peas and the like, fall on
the plate, and pass out of the machine, by the valve F, the grain passes down the
spout G, to the sieve M, which separates larger, and smaller impurities, it then
passes into the aspirating trunk N, and leaves the machine, by the hopper S.
Pure air enters the aspirating trunk, at T and T₁, which lifts out any light
impurities, and discharges them in the expansion chamber O. The air then passes
by the side spouts Q', to the fan D, by which it is driven through the grain as it
enters the inclined trunk H, in this way the air is used twice over before leaving
the machine.
Having now particularly described, and ascertained the nature of my said inven-
tion, and, in what manner the same is to be performed, I declare that what I
claim is:
11. For the inclined spout, or trunk H with the connections thereto, viz. :-

page_text: 2. For the adjustable plate or board E with the adjustment.
3. The expansion chamber O with the connections thereto.
4. The whole machine as a combination, substantially as
described.
set forth and.