IMPROVEMENTS IN APPARATUS FOR· GLAZING RICE, COFFEE, AND OTHER GRANULOUS SUBSTANCES
Year: 1881

page_text: LETTERS PATENT to Herbert John Haddan, of the Firm of Herbert and
Company, Solicitors of Patents, of 67, Strand, in the City of Westminster,
Civil Engineer, for an Invention of "IMPROVEMENTS IN APPARATUS FOR·
GLAZING RICE, COFFEE, AND OTHER GRANULOUS SUBSTANCES." A com-
munication from abroad by Achille Leytens, of Antwerp, in the Kingdom
of Belgium.
COMPLETE SPECIFICATION filed by the said Herbert John Haddan at the
Office of the Commissioners of Patents on the 18th January 1881.
HERBERT JOHN HADDAN, of the Firm of Herbert and Company, Solicitors of
Patents, of 67, Strand, in the City of Westminster, Civil Engineer. "IMPROVEMENTS
IN APPARATUS FOR GLAZING RICE, COFFEE, AND OTHER GRANULOUS SUBSTANCES."
A communication from abroad by Achille Leytens, of Antwerp, in the Kingdom
of Belgium.
Hitherto peeled rice has been cleaned by means of vertical apparatus, which
failed to produce the brilliant polish that gives to the product a fine appearance
and preserves it for a long time.
The present Invention attains this double object by a new combination of known
means, mechanism, and materials. The system consists in a horizontally acting
polishing mill or glazing apparatus. The apparatus, as illustrated in the accom-
panying Drawing, Figs. 1-4, is composed of a frame of any suitable shape and
construction, provided with discharge openings and adapted to the herein described
system which constitutes the Invention. In the centre of this frame is the drawing
shaft (see vertical section, Fig. 1) which sets the apparatus in motion. Upon this
frame rests the fixed stone E made of (Venetian) talc or of any other suitable
material. The upper part of this stone is surrounded by a metallic sieve F (shown
in plan, Fig. 3) provided with four discharge openings F, through which the
glazed rice is conducted to the fall pipe. Over the stone E is the ventilator B
provided with blades (see plan, Fig. 4) and with a brush for removing the dust
which results from the shaking and from the friction of the rice between the
polishing plate D and the stone E. The plate D consisting, first, of an iron disc;

page_text: second, of a wooden disc secured to the former; and, third, of a lining of sheep skin, is
connected with the ventilator, and shares the rotary motion of the latter. This plate,
which may be raised or lowered at will, compresses the rice on the stone, and con-
tributes with the latter to polish the rice without producing any fracture. The dust
and other foreign matter which may be set free during the glazing process are driven
against the vertical metal sieve G, see side elevation, Fig. 2, surrounding the
The
polishing plate and the ventilator, and are discharged in the usual manner.
apparatus operates as follows:-The rice is poured into the receiver A (after the
apparatus has been set in motion), from where it passes along the dotted line upon
the cup situated at the top of the driving shaft, in order to fall without any
artificial means upon the stone and under the polishing plate, which may be raised
or lowered as required, and which receives motion from the driving shaft turning
with an average speed of 259 revolutions per minute. The rice, after having been
subjected to the polishing process, enters the downward pipes in following the
dotted line and falls down through the four pipes, which are joined at their lower
part, and is then collected in any suitable manner. The distinctive feature of this
Invention consists in giving to the rice a polish which was not attained with the
ordinary systems of cleaning. This result is obtained by horizontally acting
machinery or apparatus, the details of which are already known, but not hitherto
applied in the same manner and for the same purpose, or in the same combination.
CLAIMS..
(1.) An apparatus for polishing or glazing rice or other granulous substances,
substantially as described and illustrated.
2. The combination of a fixed stone of Venetian talc with a polishing plate
working together horizontally, and provided with a ventilator and with a sieve,
substantially as and for the purpose described.
In witness whereof, I, the said Herbert John Haddan, have hereunto set my
hand and seal, this Fourteenth day of January, A.D. 1881.
1. J.
J. HADDAN.
(T..S.)