Improvements in Apparatus for Screening or Separating, and for Conveying Grain, Seeds, Coal, or other Substances.
Year: 1896

page_text: Date of Application, 14th July, 1896
Complete Specification Left, 14th May, 1897-Accepted, 19th June, 1897
Date of Application, 14EN
1690
Complete Specification Left, 14th May, 1897-Accepted, 19th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Screening or Separating, and for
Conveying Grain, Seeds, Coal, or other Substances.
I, JOHN WILSON HOPE of The Anchorage, Huyton in the County of Lancaster,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention has for its object an apparatus which will act as a conveyor and
at the same time as a screen or separator for grain, seeds, and other granular
substances and coal.
The
In carrying my invention into effect I provide a conveyor of any suitable con-
struction such as one having a rotary spiral conveying worm or one having
travelling blades or arms for conveying the material forward. The cover, box, or
cylinder in which this conveyor works of whatever kind it may be, is made with
perforations or of wire gauze of any suitable mesh to form a screen or sieve.
seeds or other material are fed into the conveyor through a suitable hopper or other-
wise at one end, and are conveyed forward by the conveyor, the dust or smaller
particles or foreign matter falling through the perforations or meshes and are removed
from below in any suitable manner, while the larger particles remain in the screen and
are conveyed to the other end and discharged at the delivery. By this means a
conveyor and a separator or screen are provided in one and the same apparatus. The
apparatus may be inclined if desired, and in those cases in which a spiral worm is
used it is obvious that the screen may be made to rotate and the spiral fixed stationary
if so desired, instead of the screen being fixed and the spiral rotating. Furthermore,
the screen in which the conveyor is mounted, may be formed so as to separate the
material into various grades, this being effected by forming the perforations or meshes
of one given size throughout one section of the length of the screen, another size
throughout another section and so on. The conveyor in moving forward the material
has the effect of turning it, so that the screening of the whole body of the material is
ensured. The perforations may be made tapering in such a manner as to prevent the
holes getting blocked. The apparatus may be fitted with stationary or revolving
brushes for cleaning purposes.
Dated this 12th day of July 1896
W. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Patent Agents for the Applicant.
Improvements in Apparatus for Screening or Separating, and for
Conveying Grain, Seeds, Coal, or other Substances.
I JOHN WILSON HOPE of The Anchorage, Huyton in the County of Lancaster,
5 Manufacturer, 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 apparatus for screening or separating dusty particles from

page_text: grain, seeds, coal, or other substances, which are to be submitted to receivers in
connection, say, with crushing mills, and to traverse such materials towards their
desired destination in a uniform manner.
The object of thus screening the materials before delivering them to be operated
upon, is to extract any grit and fine particles which may be mixed with the materials
admitted to the supply hopper, and thus prevent their passing, with the material to
be operated upon, into the first pair of crushing rollers, to the great injury of the
same.
The invention also applies to the assorting of crushed materials, such as stones,
received from the stone breaker, and delivering them in their assorted state into trucks
or other receptacles.
In explaining my invention, I will describe it as applied to apparatus designed for
operating upon cotton seed, and delivering it to mills, from which it will be discharged
in the form of meal.
a fair illustration of the applicability of the invention to
This will serve as
various uses.
In the accompanying drawing,
Fig. 1 is a side elevation of so much of the apparatus as will serve to explain
the nature of my invention;
Fig. 2 is an end elevation of the same.
A is a horizontal trough or casing, in which is mounted an Archimedean screw or
other conveyor B.
C is a hopper furnished with a spout for delivering the material to be operated upon
into the trough A.
This trough, near its receiving end, is fitted with inverted cone-shaped holes that
will not readily choke, or, as an equivalent, a screen of suitable mesh for facilitating
the discharge of grit from the material to be operated upon, immediately on its
admission to the conveyor.
A to A are openings in the bottom of the trough or casing, in line with the roller
mills, D¹ to D³, for the purpose of delivering seed to the hoppers of those mills, clear
of grit and dust, and in an even and uniform manner.
The seeds thus supplied to the mills D' to Do will be converted into meal ready for
future treatment to convert the same into oil cake, and the surplus amount of seeds,
or that not discharged at the openings A to A5, will find its way from the trough
or casing A to a second horizontal trough or casing A*, set parallel with the
conveyor, but at a lower level, and furnished with an Archimedean screw B, or
its equivalent, for carrying back the seed to an elevator E, which will re-deliver
the seed into the supply hopper C.
Thus, any surplus delivered into the trough A, and discharged therefrom at its
extremity, will find its way back, to be again presented to the openings A¹ to A
in the bottom of the trough.
Rotary motion is given to the Archimedean screws, or other propellers, B, B*,
by belts and pullies, or other suitable gearing, the source of motion being that
which drives the mills.
When applying my invention to crushed- stones, which it is desirable to assort into
three or more grades, I form the trough or casing A with openings in its bottom
that are so graded as to ensure the requisite assortment of the material, and below
these openings, trucks or other receptacles may be placed to receive the assorted
material, as it is moved forward by the rotating conveyor.
The diagram, Fig. 3, sufficiently illustrates this application of the invention.
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 :-
The means above described for simultaneously screening and conveying grain,

page_text: other receptacles provided to receive the sieved or other assorted materiale
bstances, to crushing or other mills, or to warehouses, or
Dated thi
other receptacles provided to receive the sieved or other assorted materiale
to crushing or other mills, or to warehouses, or
Dated this 14th day of May 1897.
E
NEWTON & SON,
Agents for the Applicant.