IMPROVEMENTS IN MACHINERY FOR UNHUSKING RICE AND OTHER SEEDS
Year: 1863

page_text: PROVISIONAL SPECIFICATION left by John Charles Wilson at the Office
of the Commissioners of Patents, with his Petition, on the 12th December
1863.
I, JOHN CHARLES WILSON, of 144, Cannon Street, London, Civil and
Mechanical Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MACHINERY FOR UNHUSKING RICE AND OTHER SEEDS," to be
as follows, that is to say:-
This Invention relates to machinery for removing the husk from rice or
other seeds. This operation has been hitherto performed either by stampers,
which are cumbersome and tedious in operation, or by millstones, which are
difficult to adjust and keep in order, and are much given to break the seed.
They are, besides, unsuited for making small machines to be driven by hand-
power. In this Invention the operation is performed by means of a revolving
and a fixed dise of perforated tin or other hard metal plate, the rugged edges
of the perforations effecting the desired purpose. The cheapness of the tin
plate renders it well suited for producing an economical machine for general
use, while its hardness is sufficient to render it very durable. The machinery
is constructed as follows:-A horizontal cast-iron disc with its top surface
covered with perforated tin plate is fastened to the top of a vertical shaft and
made to revolve quickly by means of suitable gearing worked by hand or
driven by power. Placed above this revolving disc & at a small distance
from it, varying according to the length of the material to be unhusked, is a
fixed disc securely attached to the framing of the machine, & with its under

page_text: side also covered with the perforated tin plate, so that the two perforated
surfaces are opposite to each other. By means of a feeding hopper attached
to the fixed disc, the material to be unhusked is fed in at the centre of the
revolving disc, & carried by its centrifugal force between the two discs where
the unhusking operation is done. The cleaned material and husks fall down
below the revolving disc into a basin prepared to receive them, and are swept
out of the machine by a scraper fastened to the under side of said revolving disc.
Instead of the discs cones may be used, but I find the discs to be preferable.

page_text: PROVISIONAL SPECIFICATION left by John Charles Wilson at the Office
of the Commissioners of Patents, with his Petition, on the 12th December
1863.
I, JOHN CHARLES WILSON, of 144, Cannon Street, London, Civil and
Mechanical Engineer, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MACHINERY FOR UNHUSKING RICE AND OTHER SEEDS," to be
as follows, that is to say:-
This Invention relates to machinery for removing the husk from rice or
other seeds. This operation has been hitherto performed either by stampers,
which are cumbersome and tedious in operation, or by millstones, which are
difficult to adjust and keep in order, and are much given to break the seed.
They are, besides, unsuited for making small machines to be driven by hand-
power. In this Invention the operation is performed by means of a revolving
and a fixed dise of perforated tin or other hard metal plate, the rugged edges
of the perforations effecting the desired purpose. The cheapness of the tin
plate renders it well suited for producing an economical machine for general
use, while its hardness is sufficient to render it very durable. The machinery
is constructed as follows:-A horizontal cast-iron disc with its top surface
covered with perforated tin plate is fastened to the top of a vertical shaft and
made to revolve quickly by means of suitable gearing worked by hand or
driven by power. Placed above this revolving disc & at a small distance
from it, varying according to the length of the material to be unhusked, is a
fixed disc securely attached to the framing of the machine, & with its under

page_text: side also covered with the perforated tin plate, so that the two perforated
surfaces are opposite to each other. By means of a feeding hopper attached
to the fixed disc, the material to be unhusked is fed in at the centre of the
revolving disc, & carried by its centrifugal force between the two discs where
the unhusking operation is done. The cleaned material and husks fall down
below the revolving disc into a basin prepared to receive them, and are swept
out of the machine by a scraper fastened to the under side of said revolving disc.
Instead of the discs cones may be used, but I find the discs to be preferable.