Improved Means for Cleaning or Removing Extraneous Matter from Rape and other Seeds.
Year: 1889

page_text: Date of Application; 23rd May, 1889
Complete Specification Left, 22nd Feb., 1890-Accepted, 10th May, 1890
PROVISIONAL SPECIFICATION.
Improved Means for Cleaning or Removing Extraneous Matter from
Rape and other Seeds.
I, ALFRED WILLIAM MACILWAINE, Managing Director of the Hull Oil-Manu-
facturing Company, Limited, of Stoneferry, Hull, in the County of York, do hereby
declare the nature of this invention to be as follows:-
This invention relates to an improved method of and apparatus for cleaning, or
removing extraneous matter from, rape and other seeds.
In almost all rape seed, whether home-grown or imported from abroad, and
especially in wild rape seed, or ravison, there is a certain proportion of foreign
matter. If, after the oil contained in the seed has been extracted, the residue is
required for use as cattle food, it is desirable for the cake or meal prepared therefrom
to be as pure as possible.
By the use of my invention, the extraneous matter, and especially the dust and
grit, which are the inost deleterious portions thereof, is removed. The impure seed,
after having passed through the usual revolving screen for the removal of the fine
dust and lumps, is placed in a hopper, whereof the bottom is furnished with an
ordinary feed-roller and a slide for adjusting the size of the opening.through which
the seed is fed. The seed and other substances fall from the hopper upon an inclined
surface of glass, ivory or other suitable material having a hard smooth face. The
seeds rebound from the inclined surface to a greater distance and higher than the
extraneous matter. A partition, the upper or exposed edge of which is inclined
and points towards the surface of the inclined glass plate is so arranged as to
separate the greater buik of the foreign matter from the seeds, which bound over
the partition and are caught in or conducted to a suitable receptacle. In order that
the seed thus separated may be as pure as possible, it is necessary to keep the
partition so high that a considerable proportion of the seed fails to overleap the same.
This portion of the seed is accordingly permitted to fall upon a second inclined surface
of a similar character; the rebounding seed being separated from the impurities by
a partition as before. The seed remaining with the extraneous matter may then,
if thought desirable, be again subjected to the separating process; the number of
times to which it is subjected to such process depending upon the extent to which it
is desired to purify the seed.
The above-described means for separating impurities from rape seed may be
employed for purifying other kinds of seed of a globular character.
30
1000
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improved Means for Cleaning or Removing Extraneous Matter from
Rape and other Seeds.
I, ALFRED WILLIAM MACILWAINE, Managing Director of the Hull Oil-Manu-
facturing Company, Limited, of Stoneferry, Hull, in the County of York, 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 relates to an improved method of and apparatus for cleaning, or
removing extraneous matter from, rape and other seeds.
In almost all rape seed, whether home-grown or imported from abroad, and

page_text: 4
especially in wild rape seed, or ravison, there is a certain proportion of foreign
matter. If, after the seed has been treated for the extraction of oil, the residue be
required for use as cattle food, it is desirable for the cake or meal prepared therefrom
to be as pure as possible.
ace.
By the use of my invention, the extraneous matter (and especially the dust and
grit, which are the most deleterious portions thereof) is removed in the following
way, reference being had to the accompanying diagram -The impure seed S*, after
having passed through the usual revolving screen for the removal of the fine dust and
lumps, is placed in a hopper A, whereof the bottom is furnished with an ordinary
feed-roller a and a slide a for adjusting the size of the opening a through which the
seed is fed. The seed and other substances fall in a stream from the hopper A upon
an inclined surface B of glass, ivory or other suitable material having a hard smooth
The rape or other seeds of spherical shape rebound from the inclined surface
to a greater distance and higher than the extraneous matter. A. partition c c¹, the.
upper or exposed edge c of which may be inclined towards the plate B, is so arranged
as to separate the foreign matter from the bulk of the seeds which bound over the
partition and are caught in, or conducted by a guide to a suitable receptacle D.
In order that the seed thus separated may be as pure as possible, it is necessary to
keep the partition c e so high that a considerable proportion of the seed fails to
overleap the same. This portion of the seel is accordingly caught in a trough E and
permitted to fall through the slot or opening e upon a second inclined surface B¹ of
a similar character to the first; the rebounding seed S being separated from the
impurities by a partition c e as before. The seed remaining with the extraneous
matter may then, if thought desirable, be again subjected to the separating process;
the number of times to which it is subjected to such process depending upon the
extent to which it is desired to purify the seed. In the diagram is shewn a third
inclined surface B² arranged in close proximity to the receptacle D; the extraneous
matter M. being allowed to fall into the space DI.
The upper portion c of each partition c is preferably pivoted so as to permit of
its free or exposed edge being brought nearer to or further from the inclined
surface B, B or B2 as the case may be ;, the exposed edge being so adjusted that
pure seed only falls into the receptacle D.
;.
The above-described means for separating impurities from rape seed may be
employed for purifying other kinds of seed of a globular character.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I claim :-
1. The improved method of cleaning, or removing extraneous matter from, rape
and other seeds, substantially as herein described.
2. The improved apparatus for cleaning, or removing extraneous matter from,
rape and other seeds, arranged or operating substantially as heroin described.
Dated this 22nd day of February 1890.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Agent for the Applicant.