Improvements in Hulling or Husking and Cleaning Grain and in Means therefor.
Year: 1889

page_text: Date of Application, 18th Sept., 1889
Complete Specification Left, 18th June, 1890-Accepted, 16th Aug.,
1890
PROVISIONAL SPECIFICATION.
Improvements in Hulling or Husking and Cleaning Grain and in
Means therefor.
I, FRITZ CORRELL, of Neustart of Haardt in the Rhenish Palatinate, Empire of
Germany, Engineer, do hereby declare the nature of this invention to be as
follows:-
:-
Various attempts prior to my present invention have been made to clean and hull or
husk grain by the application of hard angular and granulur scouring material such as
sand the grain and sand being agitated in a revolving drum.
The great defect of this process however is that it is exceedingly difficult to separate
the grain from the sand because the particles of sand by mutual attrition, produce very
fine atoms of sand dust which become fixed in the grains and are exceedingly difficult.
if not impossible to remove and consequently the grain is deteriorated and rendered
gritty.
Now my improvements consist mainly in cleaning and husking the grain by the
application of fine steel or iron turnings or shavings and agitating the grain with the
turnings in a bulling or busking machine and subsequently separating the motal
turnings from the cleaned grain by means of a magnet.
This agitation of the combined materials and subsequent separation after cleaning
may be effected in any suitable husking maching; but I prefer to employ a machine
constructed according to my invention substantially as follows:-
The grain mixed with the steel or iron turnings is fed into a drum which has a
series of ribs or trays and in which is fitted a revolving vertical shaft carrying a
number of scoops or beaters whereby the grain is thoroughly hulled or husked during
its passage through the drum. The mixed materials escape from the bottom of the
drum through a pipe and are conducted to a slowly revolving magnet to which the
metal particles adhere. The metal particles are rubbed off the surface of the magnet,
by a stripping device and after the useless parts have been separated by a fan are
carried back to a hopper by an endless chain of brackets or equivalent means whence
they flow again into the husking drum. The husks and dust are preferably before
passing over the magnet separated from the grain by means of a fan or sieve.
arrangement.
Dated this 17th day of Santainber 1880
H. B. BARLOW,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Hulling or Husking and Cleaning Grain and in
Means therefor.
1, FRITZ CORRELL, of Neustadt % Hardt, in the Rhenish Palatinate, Empire, of
Germany, Engineer, 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 :-
Various attempts prior to my present invention have been made to clean and hull
or husk grain by the application of hard angular and granular scouring material such
as sand the grain and sand being agitated in a revolving drum.
The great defect of this process is however that it is exceedingly difficult to separate
the grain from the sand because the particles of sand by mutual attrition produce very
fine atoms of, sand dust which become fixed in the grains and are exceedingly difficult
if not impossible to remove and consequently the grain is deteriorated and rendered
ro 077

page_text: gritty and further the husk refuse is much reduced in value as fodder by the
admixture of so many particles of sand.
Now my improvements consist mainly in cleaning and husking the grain by the
application as the rubbing material or agent of fine grained steel or iron lathe turnings
or shavings preferably specially made turnings of hardened steel, cast steel or case
hardened castings and agitating the grain with the turnings in a hulling or husking
machine and subsequently separating the metal turnings from the cleaned grain by
means of a magnet, fitted with an automatic rubbing off arrangement. I prefer to
employ turnings made from case hardened castings as they split in consequence of
their extreme brittleness and remain always sharp cornered and further they make no
dust which could penetrate the slits of the grains.
To effect a complete removal of the iron or steel shavings by the magnet it, is
necessary to remove the husking dust from the grain by means of a fan or equivalent
before its passage over the magnet, because otherwise the husking dust might provent
direct contact of the metal with the magnet. The machine is therefore suitably
arranged with a powerful fan either upon the machine or in direct connection with it
by means of a pipe which removes all dust rubbed off as well as the metal particles
which have become too fine.
This agitation of the combined materials and subsequent separation after cleaning.
may be effected in any suitable husking machine; but I prefer to employ a machine
constructed according to my invention substantially as hereinafter described with
reference to the accompanying Drawings.
Figure 1 is a sectional elevation of the entire machine and Figs. 2 and 3 are detail
views of parts of the same.
The machine has a drum made up of a series of plates P and a corresponding
number of dishes or trays T, the latter fixed upon a shaft D which is driven by a belt
and pulley or in other convenient manner. Any suitable number of plates P and
trays T may be employed according to the extent of production desired.
Each plate P has a central circular hole O surrounded by an annular flange R
which retains on the plate P the steel or iron particles put into the machine as herein-
after explained.
Fig. 2 shows stones, grooved plates or scouring pieces S which are secured to the
machine between the feet F which are formed on the plates P.
The trays T, are provided with bevelled rims Chaving suitable obliquely formed
recesses arranged according to the direction of rotation of the shaft D and on the
under sides of the trays T ribs or rubbing surfaces G see Fig. 3, also placed at an
angle according to the direction in which the shaft turns.
The shaft D is adjustable vertically in its bearing or footstep N and can therefore
be raised and lowered with the trays T secured upon it; by means of which the movable
rubbing parts can be adjusted relatively to the stationary rubbing parts the stones or
equivalents S.
Above the plates P and on the shaft D is secured a fan V which is in direct commu-
nication with the drum of the machine. A pipe leads from this fan to the discharge
pipe J. of the drum whereby any dust or small foreign matters which may have passed
through the drum, are removed.
When the machine is put in motion steel or iron turnings are first allowed to flow
from a hopper B into the drum until the plates P are covered, then the flow of
turnings is wholly or partially stopped.
The grain is then allowed to flow through the feed tubes II and A into the drum
through which it passes in a zigzag direction being acted upon by the combined
movable and stationary rubbing surfaces and the metal turnings on the plates P, on
its way to the discharge pipe J. During the passage of the grain through the drum
the dust rubbed off as well as particles of the metal turnings which have become too
fine will be removed at once by the strong upward draught through the drum caused
by the fan V. Any dust or light particles still remaining amongst the grain is
removed by the aforesaid pipe connecting the fan to the discharge pipe J.
The grain is conducted through the pipe J, which must not be too much inclined,

page_text: to the magnet M which is fitted with an automatic rubbing off arrangement, and
unfailingly removes from the grain all metal particles, which are then returned
through the tube L by the endless chain of buckets E to the hopper B. The metal
turnings on arriving once more at the druin through the feed tube A are cleaned
again by the air draught caused by the fan and thus only turnings of suitable size
and not tiny particles are allowed to pass through the drum so that all possibility of
metal dust being produced in the machine is prevented.
Instead of arranging the machine vertically as herein shown and described it may
be arranged horizontally and the metal turnings be caused to collect in a well or
deepening of the under part of the drum. The grain is driven by beaters over these
metal turnings, which are prevented from advancing or shifting their position by
means of ribs or divisions set obliquely relatively to the beaters. The fan or a sieve
arrangement is employed to remove all dust and light particles from the drum and
discharge pipe as before.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
The herein described improvements consisting essentially in the use and application
of iron or steel turnings for cleaning and husking grain and the subsequent separation
of these metal particles from the grain by means of a fan, sieve arrangement or
equivalent and a magnet as set forth.
171 J
T 1000
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.