Improvements in Centrifugal Drying Machines for Drying Grain or Seeds.
Year: 1895

page_text: Date of Application, 9th Aug., 1895
Complete Specification Left, 11th May, 1896-Accepted, 13th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in Centrifugal Drying Machines for Drying Grain
or Seeds.
We, JOSEPH GREENSLADE of 100, Rathbone Street, Liverpool in the County
of Lancaster, Miller and JOSEPH LIGHTBOUND of 25, Argyle Street, Liverpool,
aforesaid, Miller, do hereby declare the nature of this invention to be as
follows:-
This invention relates to certain improvements in centrifugal drying machines or
grain whizzers.
In carrying the same into effect, we form our apparatus with a perforated drum-
of conical form. This drum is fixed on a horizontal or nearly horizontal shaft on-
which is mounted one, two or more discs. If there is more than one, these discs
are mounted one in front of the other, each disc being larger in diameter than the
one immediately before it. These discs are as already stated fixed on the shaft
and may be provided with arms or ribs arranged in such a way that when the shaft
revolves the grain by centrifugal force is caused to fly outwards against the
conical drum.
The mode of action is as follows-
The moist or wet grain or material to be dried is fed into the apparatus at the
smaller end of the drum and comes in contact with the first disc where it is caused
by centrifugal force to spread outwards and be thrown against the perforated cone.
The grain, or a portion of it, is then thrown onto the disc or discs immediately
following and the result is that the grain is again thrown outwards against the
drum by centrifugal force and is discharged finally at the larger end of the drum
in a more or less dried condition, the moisture or a great part thereof having been
It is
ejected by centrifugal force through the perforations in the conical drum.
obvious that any suitable number of discs may be used and that the apparatus may,
be employed for drying other materials besides grain.
Dated this 8th day of August 1895.
:
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Patent Agents for the Applicants.
L
Improvements in Centrifugal Drying Machines for Drying Grain
or Seeds.
We, JOSEPH GREENSLADE of 100 Rathbone Street, Liverpool in the County
of Lancaster, Miller, and JOSEPH LIGHTBOUND of 25 Argyle Street, Liverpool
aforesaid, Miller, 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 certain improvements in centrifugal drying machines or
grain whizzers.
E the come into effect we form our annaratus with a perforated drum

page_text: of conical form. This drum is fixed on a shaft on which is mounted one, two or
more discs. If there is more than one, these discs are mounted one in front of the
other, each disc being larger in diameter than the one immediately before it.
These discs are, as already stated, fixed on the shaft and may be provided with
arms or ribs arranged in such a way that when the shaft revolves, the grain by
centrifugal force is caused to fly outwards against the conical drum.
In the accompanying drawings,
Figure 1 is a half front elevation and half section with casing removed; and
Figure 2, a plan, half having perforated drum removed.
In these figures, A is the perforated drum of conical form fixed on the horizontal
shaft B, on which also is mounted inside the drum the discs C C. The second
disc is of larger diameter than the one immediately in front; E are flanged arms
secured to the shaft B on which the discs are mounted, the flanges of these arms
projecting from the surface of the discs. F is a fragment only of the outside
casing of the machine which encloses the perforated conical drum, and G an air
outlet therein for the purpose hereinafter described.
The mode of action is as follows:-
The moist or wet grain or material to be dried is fed into the apparatus at the
smaller end of the drum through a suitable shute (not shown) and comes in contact
with the first disc where it is caused to spread outwards and be thrown against the
perforated cone A, the flanges on the arms in conjunction with the discs causing
this spreading of the grain. The grain is then thrown onto the disc or discs
immediately following and the result is that the grain is again thrown outwards
against the drum A and is discharged finally at the larger end of the drum in a
more or less dried condition, the moisture or a great part thereof having been
ejected by centrifugal force through the perforations in the conical drum. The
flanges rotating with the discs act as a fan and generate a current of air which is
forced through the perforations in the cone and out through the air outlet F in
the outside casing G of the machine. This air outlet F has louvres to catch any
water or moisture that may be driven through the outlet and discharge it
externally. The current of air thus generated has a drying effect upon the grain
and causes it to be delivered in a drier condition than would otherwise be
the case.
It is obvious that any suitable number of discs may be used and that the
apparatus may be employed for drying other materials besides grain. Further-
more, we do not of course confine ourselves to any special way of mounting the
discs on the shaft as it is obvious the arms might even be dispensed with, the discs
mounted direct on the shaft and their faces formed or provided with flanges or riba
for the purpose set forth.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is-
.
1. The improvement in centrifugal drying machines for drying grain or seeds,
which consists in forming them of a perforated drum mounted on a rotary shaft so
as to revolve therewith, in combination with one, two or more discs whose faces are
provided with radial flanges, the said discs being mounted on the said shaft inside
the drum so as to rotate therewith whereby if wet grain or material be fed in at
the smaller end of the drum, it will come into contact with the discs and be thrown
outwards against the drum by centrifugal force, being finally discharged at the
other end of the drum in a more or less dry condition, the moisture or a great part
thereof having been ejected by the centrifugal force through the perforations,
substantially as described.
2. In combination for the purpose of drying grain or seeds, a rotary hollow
perforated cone A, one or more rotary discs C mounted one in front of the other
inside the cone aforesaid, each disc being provided with flanges or flanged arms
and each being smaller in diameter than the one immediately behind it, whereby

page_text: if the grain or seeds be fed into the smaller end of the cone they will come
successively in contact with each disc and be spread outwards or thrown against
the interior of the cone, the moisture being ejected by centrifugal force through
the perforations, while at the same time the flanges will generate a current of
air, the effect of which will further tend to dry the produce, substantially as
described.
3. In centrifugal drying machines, having one, two or more discs arranged one
behind the other on a rotary shaft, forming the said discs with radial or curved
flanges on their front faces, substantially as and for the purpose set forth.
4. The general combined arrangement and construction of parts, substantially
as herein described and shown on the accompanying drawings.
Dated this 9th dev of Mon 1906
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Birmingham, and London, Patent Agents.