A New or Improved Machine for Cleaning and Polishing Malt and Removing Sprouts or Germs therefrom.
Year: 1891

page_text: Date of Application, 22nd July, 1891-Accepted, 10th Oct., 1891
DEBICATION.
A New or Improved Machine for Cleaning and Polishing Malt and
Removing Sprouts or Germs therefrom.
I VALENTIN SCHALLMO of Kaiserslautern Bavaria Rhine Palatinate Germany
Millwright do hereby declare the nature of my said 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 a new or improved machine for cleaning and polishing
malt and removing germs or sprouts and other impurities such as dust and the like
therefrom. These operations are carried out in a single cylinder and the apparatus
used may be made movable if desired while the parts subjected to wear may be
used to the last remnant without losing their efficiency. The travelling screw
hitherto used to feed the material as well as the toothed wheels which are generally
a nuisance owing to the noise they make are all dispensed with, the wheels being
advantageously replaced by pulleys and friction rollers for the purpose of
transmitting power.
On the accompanying drawings Fig. 1 is a longitudinal section of my improved
machine the sides of the frame being partly broken off in order to more clearly
show the cleaning apparatus as well as the drawing mechanism.
The machine may be described as follows:-E is the hopper or opening through
which the material to be treated is conveyed to the cylinder C where it remains
from the germ freeing to the polishing operation. In the front ends of the machine
are arranged the two fixed covers D (see Figs. 4, 5 & 6) which are firmly secured
to the boards G affixed to the frame. Upon these covers rest the two rings R
which are tightly fitted and rigidly connected together by the six bars st upon
which is placed the woven wire or perforated sheet metal cylinder c.
The ring R,
(Figs. 1 and 4) serves for fixing as well as for stiffening the cleaning cylinder
which is divided into two equal compartments by the ring or partition f (Figs. 1 & 4).
In the first compartment marked I are mounted obliquely upon the driving shaft w
the four disintegrators & which are so shaped as to correspond with the curvature
of the cylinder and are used to free the malt from germs. The second compartment
marked II contains the brushes B likewise mounted on the driving shaft w and
composed of hair or other stiff vegetable fibres. At both ends of the cylinder are
placed the bearings for the shaft as shewn in Figs. 2, 3 & 7 allowing the same
to be shifted relatively to the inner periphery of the cylinder by removing the
plates p.
Over the disintegrators as well as over the brushes B are arranged the baffle
plates which are bent as shewn in the drawings fixed in position by means of
eyes a, and capable of turning upon the rod sa around their own axes.
The two
sheets may be displaced to correspond with the shifting of the driving shaft w of
the disintegrators and of the brushes b with the aid of the slots formed in the
lugs and of the lever h which is operated by the small toothed wheel sp and
caused to turn in the direction of the arrow (see Fig. 8). This lever holds the
pin g rivetted to the plate b. The working space shewn in the drawings is thus
formed between the disintegrators as well as between the brushes on the one hand
and the plates 6 on the other hand together with the large working surface for the
former. Motion is imparted to the pulley A which transmits it directly to the
disintegrators s and to the polishing brushes b. The cleaning cylinder is revolved
by means of friction discs,,, the transmission of motion from the driving
shafts w being clearly illustrated by Figs. 1 to 3. The pulley A. drives the
ventilator V which removes by exhaustion all the impurities from the malt.
b
The cleaning and polishing operation is carried out as follows:―The malt enters

page_text: the hopper at E and passes subsequently through the tightly fixed cover into the
cylinder c where it is acted upon by the disintegrators revolving at a very high
rate of speed and thrown against the perforated sides of the cylinder c by reason of
centrifugal force. The germs are thus partially knocked off and are only entirely
removed by rubbing against the plate (Fig. 8). To cause the malt to remain for.
some time under the treatment of the disintegrators, the same is temporarily
impeded by the partition ring after which it passes into the division II when it is
operated upon by the brushes B and pressed and brushed against the plate 6 in
such a manner that the outer surface of the graius appears highly polished while
the latter are freed from any germs or husks which may have still adhered
thereto. In the lid opposite the mouth or hopper is formed an opening through
which the polished material is discharged. The disintegrators s used for removing
the germs are placed as shewn in Fig. 8 upon swivels and can be easily removed
with the aid of the screws & in order to be shifted according to requirements.
Having thus particularly described and ascertained the nature of this my said
invention and in what manner the same is to be performed I declare that what I
claim is :
1st. The improved construction and arrangement of parts constituting my
improved machine for cleaning and polishing malt and removing germs and sprouts
therefrom substantially as hereinbefore described and illustrated on the accom-
panying drawing.
2nd. In a machine for cleaning and polishing malt and removing germs and
sprouts therefrom the employment of a revolving perforated cylinder divided into
two compartments in combination with a set of highly speeded disintegrators and
brushes capable of adjustment laterally mounted and operating substantially as
herein before described and illustrated on the accompanying drawing..
3rd. In a machine for cleaning and polishing grain and removing germs and
sprouts therefrom the employment of my improved baffle plates with swivelling
adjustment substantially as herein before described and illustrated on the accom-
panying drawing.
Dated this 21st day of July 1891.
JOHN G. WILSON,
Agent for the Applicant.