An Improved Grain Separator having Inclined Planes.
Year: 1898

page_text: An Improved Grain Separator having Inclined Planes.
A communication by LA SOCIETÉ AMELIN & RENAUD, of 18, Rue Mogador, Paris,
in the Republic of France
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
l'atent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both
in the County of Lancaster, 118, New Street, Birmingham, in the County of
Warwick, and 322, High Holborn, in the County of Middlesex, Civil Engineer, do
hereby declare the nature of this invention to be as follows:-
This invention has for its object a grain separating or sorting apparatus operating
without motive force by the simple action of the weight and shape of the grain,
and enabling grains of wheat, barley or the like to be separated from the round
grains which are mixed with them and which diminish considerably their mercan-
tile value.
This apparatus consists essentially of a series of inclined planes placed in a
cascade or stepped series on which the grains to be separated are caused to fall.
A single pipe bringing the mixture of various grains communicates with the
upper part of each plane towards one of its ends. The round grains which
encounter less resistance when rolling describe an extended trajectory and collect
in a pipe placed at the other end of the inclined plane. As regards the grains of
wheat or barley their elongated form impedes their travelling so that their
trajectory is much shorter, which causes these grains to descend along the inclined
plane and to be discharged at its lower part into a collecting channel in which
there also fall some of the round grains. This channel or passage brings the whole if
deemed desirable to a second inclined plane where the separating continues. By
increasing the number of falls and of inclined planes a separation as perfect as
may be desired can be obtained.
.
Instead of operating on a succession of simple inclined planes double inclined
planes placed alternately back to back in a V shape may be employed. In this
case the pipe or passage by which the grain is brought opens above the summit
where the two inclined planes meet back to back. The grains of wheat are collected
at each side in two channels which convey them separately to each of the inclined
planes of the V. The good grains then converge towards a common channel
which is placed in the lower part of the ✓ and which in its turn opens above
the ridge of the next two planes placed back to back and so on successively, the
number of falls of the cascade thus formed being capable of being varied for each
installation.
In the preferred form of the apparatus a hopper is placed at the highest point to
discharge the grain to be separated by an inclined passage or pipe towards one of

page_text: the ends of the ridge of two inclined planes placed back to back. The round
grains describe certain trajectories and fall into transverse inclined passages formed
as gutters and finally drop into receiving boxes. The grains of wheat or barley
describe other trajectories and fall together with a certain number of the round
grains into lateral passages which in turn open above inclined planes forming
a V. A fresh separation takes place here, the round grains describing certain
trajectories and falling into transverse grooves from whence they are expelled,
whilst grains of wheat or barley describe other trajectories and fall into a common
central channel from whence they are brought by an inclined channel or chute
into the receiving sacks.
The double inclined planes arranged in a cascade or stepped series may be of
any suitable number according to the degree of cleaning or separating which it is
desired to obtain. In the same way double or single inclined planes of any suit-
able dimension or inclination and of variable arrangement may be employed in
these apparatuses.
The height of fall may also be varied and the distance apart of the planes may
be made greater or smaller by elongating the passages which bring the grain in
such a way as to cause this grain to fall more or less rapidly on the separating
floors.
D
L
004
J
1 1000
A communication by LA SOCIÉTÉ AMELIN AND RENAUD, of 18, Rue Mogador, Paris,
in the Republic of France, Commission Agents.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both
in the County of Lancaster, 118, New Street, Birmingham, in the County of
Warwick, and 322, High Holborn, in the County of Middlesex, Civil 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;-
-
This invention has for its object a grain separating or sorting apparatus operating
without motive force by the simple action of the weight and shape of the grain,
and enabling grains of wheat, barley or the like to be separated from the round
grains which are mixed with them and which diminish considerably their mercan-
tile value.
This apparatus consists essentially of a series of inclined planes placed in a
cascade or stepped series on which the grains to be separated are caused to fall.
A single pipe bringing the mixture of various grains communicates with the
upper part of each plane towards one of its ends. The round grains which
encounter less resistance when rolling describe an extended trajectory and collect
in a pipe placed at the other end of the inclined plane. As regards the grains of
wheat or barley their elongated form impedes their travelling so that their
trajectory is much shorter which causes these grains to descend along the inclined
plane and to be discharged at its lower part into a collecting channel in which

page_text: there also fall some of the round grains. This channel or passage brings the whole if
deemed desirable to a second inclined plane where the separating continues. By
increasing the number of falls and of inclined planes a separation as perfect as
may be desired can be obtained.
Instead of operating on a succession of simple inclined planes, double inclined
planes placed alternately back to back in a V shape may be employed. In this
case the pipe or passage by which the grain is brought opens above the summit
where the two inclined planes meet back to back. The grains of wheat are collected
at each side in two channels which convey them separately to each of the inclined
planes of the V. The good grains then converge towards a common channel
which is placed in the lower part of the V and which in its turn opens above
the ridge of the next two planes placed back to back and so on successively, the
number of falls of the cascade thus formed being capable of being varied for each
installation.
In the accompanying drawings a specimen of the separator is shown having
double inclined planes and two falls.
Figure 1 is a front elevation;
Figure 2, a vertical section on the line 1-2 of Figure 1; and
Figure 3, a plan view of Figure 2.
and
In the preferred form of the apparatus a hopper a is placed at the highest
point of the apparatus and discharges the grain to be separated by an inclined
passage or pipe 6 towards one of the ends of the ridge of two inclined planes c c
placed back to back. The round grains describe certain trajectories I and fall
into transverse inclined passages d d formed as gutters and finally drop into
receiving boxes. The grains of wheat or barley describe other trajectories
fall together with a certain number of the round grains into lateral passages f f
which in turn open above inclined planes y g' forming a V. A fresh separation
takes place here, the round grains describing certain trajectories 1' and falling
into transverse grooves and from whence they are expelled, whilst grains of
wheat or barley describe other trajectories 21 and fall into a common central
channel from whence they are brought by an inclined channel or chute k into
the receiving sacks.
The double inclined planes arranged in a cascade or stepped series may be of
any suitable number according to the degree of cleaning or separating which it is
desired to obtain. In the same way double or single inclined planes of any suit-
able dimension or inclination and of variable arrangement may be employed in.
these apparatuses.
The height of fall may also be varied and the distance apart of the planes may
be made greater or smaller by elongating the passages which bring the grain in
such a way as to cause this grain to fall more or less rapidly on the separating
floors.
The height of the apparatus may also be considerably reduced by superposing
parallelly the inclined planes one above the other, in this case the grain from
one set of planes is returned to the next set by means of norias which discharge
the grain over successive sets of planes.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondents, I declare that what I claim is: -
A grain separating or sorting apparatus having inclined planes operating by
the simple action of the weight and shape of the grain and enabling grains of wheat,
barley and the like to be separated from the round grains mixed therewith,
said apparatus consisting of a combination of inclined planes placed in a cascade
or stepped series and on which the grains to be separated are caused to fall in such
a way as to cause them to describe different trajectories according to their form
and in then collecting at separate points the grains of similar form, said inclined

page_text: planes being arranged alternately or otherwise and back to back or in a V shape,
the whole substantially as herein before described and shown as an example in the
accompanying drawings.
Dated this 21st day of Danambi 1808
WM. P. THOMPSON & Co.,
Agents.