Year: 1886

page_text: I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co. Patent Agents,
Southampton Buildings in the County of Middlesex do hereby declare the nature of
this invention to be as follows:-
This invention relates to improvements in rice-hulling machines of the kind or class
described in the specification of former Letters Patent dated August 11th A.D. 1885
No. 9574 and is designed to make such machines more stable and regular in their
working than heretofore and to increase their durability.
According to my present invention, I substitute, for the stone or concrete block
heretofore used, a piece of wood of the required shape, and I provide the narrow
surface thereof, against which the rice is hulled, with iron plates at equal distances of
0.05, more or less, apart, thus forming projections, in front of which the cylinder
revolves. On the lower surface of the block is fixed a steel bar or plate which is
capable of adjustment towards, or away from, the hulling cylinder to the extent
of 0.004, more or less.
The block is sometimes composed of wood, one edge of which is formed of iron
plates and strips of wood placed alternately one above another so that they present a
rough surface against which the rice is pressed and hulled, principally by the friction
caused by the accumulation of rice between the said block and the cylinder.
Both of these forms of blocks give excellent results with respect to duration and
efficacy.
Another part of my invention relates more particularly to the arrangement of the
bars on the cylinder, which bars, instead of being spiral or at an angle with the axis
of the cylinder, throughout their length, are, according to my present invention,

page_text: arranged parallel with the shaft throughout the greater portion of their length and at
one end form an angle of 45 degrees, more or less, with the axis of the cylinder.
This arrangement doubles, or more than doubles, the hulling power as compared with
the arrangement heretofore adopted.
A further improvement comprised in my present invention consists in placing the
outlet or discharge opening upon one side of the cylinder casing, instead of at the
bottom as heretofore. A sliding cover having an aperture formed in it is arranged
over this outlot. By moving this cover so as to cause the opening therein to
correspond more or less with the opening in the casing the rate of the discharge can
be increased or diminished as desired. In this manner the pressure can be immedi-
ately regulated without it being necessary to approach the block towards, or withdraw
it from, the cylinder.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: Improvements in Rice-hulling Machines.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents
Southampton Buildings, in the County of Middlesex, 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 improvements in rice hulling machines of the kind or class
described in the specification of former Letters Patent dated August 11, A.D. 1885
No. 9574 and is designed to make such machines more stable and regular in their
working than heretofore and to increase their durability.
In the accompanying drawing
Figure 1 is a plan of the hulling cylinder.
Figure
Figure
opening.
2 is a transverse section of the machine through the discharge opening.
3 is an elevation of the slide for regulating the size of the outlet or discharge
Figure 4 is a perspective view of the block against which the rice is hulled.
Figure 5 is a similar view showing a modification of my invention.
a is the hulling cylinder. b is the block against which the rice is hulled.
According to my present invention the bars c on the cylinder a, instead of being
arranged spirally or at an angle with the axis of the cylinder, as described in the
specification of the said former Patent, are arranged parallel with the shaft throughout
the greater portion of their length, the remaining portion of their length, at the end
of the roller nearest the feed-opening being at an angle of 45 degrees, more or less,
with the axis of the cylinder as shown in Figure 1. This arrangement doubles, or
more than doubles, the hulling power as compared with the arrangement heretofore
adopted.
The block b, instead of being composed of stone or concrete as heretofore, is formed
of a piece of wood of the required shape. As shown in Figure 4 the narrow surface
of this wood block against which the rice is hulled is provided with iron or other metal
plates d placed at equal distances of 0.05 m, more or less, apart, thus forming
projections in front of which the cylinder revolves, as shown in Figure 2. On the
lower surface of the said block is fixed a steel bar or plate e which is capable of
adjustment towards or away from the cylinder a to the extent of 0.004 m, more
or less.
According to the modification of my invention shown in Figure 5 the block b is
provided upon one edge with iron or other metal plates and strips 9 of wood
placed alternately one above another, as shown, so that they present a rough surface
against which the rice is pressed and hulled, principally by the friction caused by the
accumulation of rice between the said block and the cylinder.
Both of these forms of blocks give excellent results with respect to duration
and efficacy.
A further improvement comprised in my present invention consists in placing the
outlet or discharge opening h upon one side of the cylinder casing, as shown in
Figure 2, instead of at the bottom as heretofore.

page_text: A slide, Figure 3, having an aperture ; formed in it is arranged to slide in guides
k over this outlet. By moving this slide, so as to cause the opening therein to
correspond more or less with the opening h in the casing, the rate of the discharge can
be increased or diminished as desired. In this manner the required pressure can be
immediately regulated, without it being necessary to approach the block b towards, or
withdraw it from the cylinder.
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
Correspondent I declare that what I claim is :-
First. In a machine for hulling rice, the hulling cylinder having the bars c arranged
parallel with the axis throughout the greater portion of their length, but inclined
near that end of the machine at which the rice enters, substantially as set forth.
Second. In a machine for hulling rice, the block b having the metal facing plates b,
substantially as described with reference to Figure 4, for the purpose set forth.
Third. In a machine for hulling rice, the block b the edge of which is provided
with metal plates and wood strips placed alternately, substantially as, and for the
purpose, set forth.
Fourth. A machine for hulling rice the outlet or discharge opening of which is
placed at one side, as shown in Figure 2, the said outlet being provided with a slide by
which to regulate the pressure upon the rice, substantially in the manner and for
the purpose set forth.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.