AN IMPROVED APPARATUS FOR DECORTICATING AND POLISHING CORN AND OTHER SEEDS, SPICES, MALT AND PULSE
Year: 1885

page_text: COMPLETE SPECIFICATION.
I LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Proprietor of the
Patent Industrial and Financial Agency 30 Finsbury Pavement London, E.C. do
hereby declare the nature of said invention for "AN IMPROVED APPARATUS FOR
DECORTICATING AND POLISHING CORN AND OTHER SEEDS, SPICES, MALT AND PULSE,
a communication to me from abroad by Friedrich Bernhard Rolle, Mill Owner
of Zschopenthal, in the Kingdom of Saxony German Empire, and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement:-
The present invention consists in the construction of a machine with which corn
can be more or less shelled in a rational manner and as quickly as may be deemed
necessary.
Fig. 1. illustrates the front view,
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side view of such a Corn Shelling & Polishing Machine.
On shaft a, which is driven by a motor operating on disk b, is a cylinder c of
about 700 m/m in diameter and of about 200 /m in breadth; this cylinder is
enveloped on both sides and at its periphery by sheet-iron 5 "/m thick, and into
this sheet-iron double edged knives (fig. 3) are screwed at the sides and in the
mantle of the cylinder. The lower half of this cylinder c thus provided with
knives is enclosed by a mantle ƒ provided with slits m m, whereas the upper half
of the cylinder is c is enveloped by sheet-metal g perforated rasp-like and made to
be taken out and exchanged. The envelopments f& g. are kept at a distance of
5/ from the edge of the knives, and are fastened by means of angle-irons h to
the sides of the casing.
On one side of the casing is the funnel k into which the corn is poured after
being cleaned beforehand, that is to say, after it has been purified of stones, pieces
of iron etc, the corn is then heaped up in the lower part of the space formed by the
cylinder c and the envelopments f& g.
The corn that is contained in e is carried away by the knives, which move with
a periphery-velocity of 1000 metres per minute. The knives slit the husks of the

page_text: corn and owing to the friction of these husks with the perforated sheets f & g they
are loosened entirely from the grains.-The severed husks and the dust fall through
the slits m of the mantle f into a lower space from which they are removed in.
time. The shelled corn will leave the casing at slides n, o, or p according as it was
intended to make the product more or less clean. The finest corn comes out at p,
that of lesser value at n.-This degree of fineness depends, as may be seen from
the design, on the distance the corn has to travel the longer that is the longer the
corn is exposed to the effect of the knives, which raise it up.
The knives used in this machine are illustrated in Fig. 3. They are double-edged,
and their upper edges are concave so that the points of the knives can penetrate
better into the husks and slits of the corn.
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The entire machine is enclosed by a casing n to prevent the dust from escaping.
As this machine merely shells and polishes the corn but does not cut it in pieces,
it can be used with the same advantage in shelling and polishing wheats and rye,
in cleaning buck-wheat and granular spices, in cleaning and busking malt and in
polishing groats, spices, peas and other pulse.
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Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I'declare that what
I claim is
In Corn Shelling and Polishing Machines. The application of a cylinder c, whose
mantle-surface and both sides are provided with the knives claimed under 3, and
which cylinder is enclosed as regards its upper half by a rasp-like perforated
envelopment g standing off at a certain distance and made exchangeable, and as
regards its lower half by a sheet-metal envelopment ƒ provided with slits m, which
is likewise exchangeable and equidistant from the cylinder.
2) The application of 3 or more 'slides n, o,'p in casing r, one places above the
other and corresponding with the degree of fineness required for conducting off the
unshelled and polished corn.
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3) The application of the exchangeable double-edged shelling knives d, illustrated
in Fig. 3, the upper edges of which are concave.