Improvement in Machines for Cooling, Scouring and Cleaning Malt and Grain.
Year: 1899

page_text: Date of Application, 11th Jan., 1899-Accepted, 17th June, 1899
COMPLETE SPECIFICATION.
Improvement in Machines for Cooling, Scouring and Cleaning Malt
and Grain.
I, RUDOLPH JOHN BEHRINGER, of the City of Chicago, County of Cook and
State of Illinois, United States of America, 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:
The objects of my machine are to clean and scour malt after it leaves the
drying kiln and grain after storing, remove all foreign matter clinging to it
and in the process of scouring incidentally also to cool it, so that it may be
safely placed in the storage chamber for use as it may be required
In order that my invention may be properly understood and readily carried
into effect I have hereunto appended three sheets of drawings, of which
Figure 1 is a front elevation of the machine.
Figure 2 is a longitudinal section on line 2-2 Figure 1.
Figure 3 is a transverse vertical section on line 3-3, Figure 2.
Figure 4 is a rear elevation of the machine.
Figure 5 is a sectional view on line 5-5 Figure 3.
Figure 6 is a view showing a modification, substituting a screen for blank
plate, as used for cleaning barley.
Figures 7, 8, 9 are detailed views of the scouring device.
Similar letters and numerals refer to similar parts throughout the several
views.
In the construction of my machine, I erect a frame work consisting of four
upright posts, marked with the numeral¡1 and cross bars marked 11 properly
secured together with corresponding side pieces. In the middle of the upper
portion of the frame, rigidly supported by the middle cross bars 1', is placed the hori-
zontal cylinder 2, extending the length of the machine from front to rear, and
is provided with a feeding hopper Fig. 4. On a shaft 3 passing through the
cylinder 2, and journaled in the centres of the heads of the cylinder, are attached
by adjustable collars, a series of open lugs or ears 4, 4 having a link shape. The
ears, 4, 4 are attached to the collars by a swivel 5 each of which has a base 6,
with teeth into which it is rigidly held by a screw after being adjusted to form
a right or left handed conveyor or partly right or left, conveying the grain from
the middle to the ends of the cylinder, and vice versa, and easily adjustable in
its alignment on the shaft. In arranging the ears 4, 4 on the shaft, I prefer
to have them face each other in sets and yet in their alignment on the shaft, be
spiral in form, looking from the front of the machine towards the rear,
object being to propel the grain in the cylinder from the hopper during the
process of agitation and scouring to the discharge opening a Fig. 2, where it
the

page_text: falls into the secondary cylinder or chamber a where the scouring process is
continued by the spiral blade 7 on the rotary shaft 8 journaled in the ends of
the chamber a. This spiral blade 7 propels the grain towards the closed end
of the chamber, conveys the grain over the perforated bottom 9, 9 dropping it
upon the screen 10 below, from there it is shaken upon the inclined screen 10¹
and thence down the second inclined screen 11 and discharged at the opening 12
on the floor below.
Upon the top of the frame is placed a blower 13 containing a fan 14, having
a discharge pipe 15 Fig. 2. By the operation of the fan 14, an upward draft is
created, and by means of the circulating air chambers and Hues b, b, which
communicate with the blower 14, all the light material as chaff, straw, dust etc.,
which is liberated by the agitation of the grain, is carried up the Hues and dis-
charged at the mouth of the blower pipe 15. Motion is obtained by means of
the pulley 16 (connected with the line shaft not shown here) on the end of the
horizontal shaft 17, carrying a raw-hide pinion 18, engaging with the bevel
gear wheel 19, on the exterior end of the horizontal shaft 3, passing through
the cylinder 2 and carrying at its opposite end also outside the cylinder, a
sprocket wheel 20 Fig. 4, engaging with the sprocket chain 22 on the larger
sprocket wheel 21, transmitting motion to the horizontal shaft 8 in the second
cylinder. A pulley 23 on the shaft 17 gives motion to the shaft 25 which
carries another pulley 24 driven by the belt 26. The eccentrics 27 and 27' and
rods 27 on the shaft 25, provide the oscillating motion for the frame B carry-
ing the screens in the lower portion of the machine, which is hung on the
rods o, o, on the brackets 28 and 281 Fig. 1 attached to the frame 1, 1, of the
machine. These rods by means of a nut and screw head 29 resting on a rocker
convex on its under surface in a concave bed on the bracket, permits the
rods to swing, thereby accommodating the vibrations of the frame B by the
eccentrics on the shaft 25. A spring rod Fig. 4, prevents the frame moving
sidewise and steadies it. A belt 30 connects the shaft 31 carrying the fan 14
in the blower, by means of the pulley wheel 32 and gives the fan motion
The secondary cylinder or chamber has its bottom wall perforated to allow
the grain to fall through into the lower compartment containing the screens;
but as the feeding of the grain into the machine is somewhat irregular at times
the discharge of grain from the cylinder a may be regulated as required_by
means of a second perforated plate 33 slidingly attached to the bottom under-
neath the cylinder a and by means of a screw bolt 34 attached to the end, the
perforations in the bottom of the cylinder may be wholly or partially closed as
may be desired for the purpose.
The vibrating frame B is arranged to carry three screens 10, 10¹ and 11, The
first screen or the one marked 10 is nearly horizontal and serves to gather or
collect the coarse refuse which falls into the trough f. The grain falls by
gravity through the perforations in the sereen 10 on to the second inclined
screen 10 which carries underneath a blank plate e into which the finer par-
ticles of dirt are collected and carried to the trough g, and thence the grain
goes to the third screen 11 upon a second blank passing along the passage
and is discharged at 12. The frame B communicates with the air chambers of
flues to permit the currents of air to pass through it to carry off the lighter
particles of refuse
The screens in the frame B are removable by means of a hinged door m² and
may be changed as the work may require a coarse or fine mesh or for different
grains. In the operation of the machine the grain is fed into the larger or
upper cylinder 2, the machine set in motion, the shaft 3 carrying the open ears
agitates the grain and scours it, discharging it into the cylinder or chamber a
below where it again undergoes similar treatment by means of the spiral
blade 7 on the rotary shaft 8, the grain passes through the perforations in the
bottom of cylinder a and falls into the oscillating frame containing the screens,
whereby the vibration of the grain moves from one screen to another, the motion

page_text: releasing the lighter substances, which are carried upward through the flues b, b
by the currents of air generated by the fan carrying all the chaff, dust, and light
particles and discharging it through the pipe 15, while the grain is carried by
the blank to the opening 12 below at the side of the machine and the sand
and other heavy refuse matter falls down the chute g', leading from the trough g,
and is carried to the chute k which communicates with the chute gl and there
discharged at m. As in the machines when in operation the load of grain upon
the screens is quite heavy and causes them to sag, I have rigged a truss rod i
Fig. 6 to aid in sustaining the weight of the grain and prevent the screens from
sagging.
During the operation of the machine the blower carries up the Bues, some
of the lighter grains, which is deposited in pockets or lower portion of the
blower 13, for the purpose of returning this grain to the screens, I place on
each side of the blower and opening into it, two small chutes n, n which by
means of sliding doors therein, may carry this grain back at intervals, by
simply opening the slides.
In cleaning barley, I place at the bottom of the vibrating frame a dust or
dirt catch pan & inclined so as to discharge its contents at m Fig. 6.
At the sides of the blower 13 ure placed dampers bb' for the purpose of regu-
lating the currents through the air flues according to the requirements of the
malt or grain in the process, the conditions of the malt not being always the
same, as to moisture, certain conditions require more draft than others.
A rod carrying a small wheel is rigged on the frame to serve in regulating
the speed and tension of the sprocket chain 22.
The cylinder 2 is provided with a manhole C C for the purpose of permitting
access to the beaters or scouring apparatus within, while in the end of the
eylinder is another opening provided with a slide t, through which the heavy or
bulky foreign matter which may collect in the end of the cylinder may be
removed.
It will be noticed that by this arrangement the grain is not only scoured and
all foreign substances removed, but by means of the fan and the circulating
currents of air through the flues and over the screens the grain is cooled as well
as scoured and cleaned when discharged from the machine.
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;-
1. In a malt cooling, scouring and cleaning device, the combination of a
supporting frame for a cylinder having an inlet hopper and a discharging orifice
and having journaled therein, a rotary shaft carrying projecting twisted link-
shaped open lugs or ears, adjustably secured thereon, a secondary cylinder con-
taining a second rotary shaft carrying a spiral blade thereon, and having a per-
forated bottom wall, a shaking frame carrying a plurality of screens and located
beneath the second cylinder, devices for vibrating said frame and draft passages
through said frame, and vertical flues on either side of the device connected by
a blower and a delivery spout connected with the lower screen as and for the
purpose specified.
2. In a malt cooling, scouring and cleaning device, a scouring cylinder having
inlet and discharge openings, containing a rotary shaft journaled in the ends
thereof and carrying a series of open twisted link shaped ears, adjustably
thereon as and for the purpose specified.
3. In a malt cooling, scouring and cleaning machine, a cylinder having inlet
and discharge openings and containing devices longitudinally, concentrically
and pivotally adjustable for agitating and moving grain from the inlet to the
discharge opening and communicating with a secondary chamber or cylinder con-
taining a second scouring and grain moving device and having in the bottom

page_text: thereof adjustable openings or perforations for the discharge of the grain as and
for the purpose specified.
4. In a inalt cooling, scouring and cleaning machine a secondary cylinder
or chamber containing a rotary shaft carrying a spiral conveyor, a series of
perforations in the bottom of the cylinder, a perforated plate slidingly secured
ou the bottom of the cylinder, provided at one end with a threaded "pin, as and
for the purpose specified.
5. In a malt cooling, scouring and cleaning machine, a vibrating frame
carrying horizontal and inclined screens and communicating with air chambers
and draft flues operated by a blower as and for the purpose specified.
6. In a malt cooling, scouring and cleaning machine, a vibrating frame
carrying an upper inclined screen, provided with an inclined plate underneath,
with a trough f at the lower edge of the plate, a second screen located below the
first screen above mentioned and communicating with said trough g a third
screen under the second mentioned above and having its lower end provided
with a discharge chute as and for the purpose specified.
7. In a nalt cooling, scouring and cleaning machine the combination of a
blower erected on the top of the frame, containing a rotably mounted fan, air
chambers and flues communicating with and creating currents of air through a
vibrating fraure located in the lower portion of the frame of the device as and
for the purpose specified.
8. In a malt cooling, scouring and cleaning machine, a vibrating frame sus-
pruded by rods having a rocking support and provided with eccentrics taking
motion from a counter shaft, as and for the purpose specified.
9. In a malt cooling, scouring and cleaning machine, a shaft enclosed in a
cylinder carrying a series of open link shaped ears, adjustably secured thereon
by means of a collar upon which the said open link shaped cars are attached by
means of a swivel with teeth engaging with similar teeth in the base thereof
and which are set and released by a thumb screw, as and for the purpose
specified.
10. In a malt cooling, scouring and cleaning machine the combination of a
frame work of wood on which is mounted a cylinder provided with a man-hole
and a hopper, and an outlet, a rotatably mounted shaft therein carrying open
twisted link shaped ears, adjustable thereon to form a right and left hand con-
veyor, a secondary cylinder for receiving the grain from the first cylinder and
to distribute the grain by means of a spiral conveyor and perforated bottom to
another vibrating compartment below it, containing a series of removable
screens, and blanks underneath the screens, provided with discharge chutes or
troughs and communicating by means of air chambers and vertical flues with a
blower erected on said machine, containing a fan, and provided with dampers,
as and for the purpose specified.
11. In a malt cooling, scouring and cleaning machine, the combination of a
cylinder provided with a man-hole, a hopper, an outlet and a sliding door in
one end, and containing a shaft, having its bearings in the end of said cylinder
and carrying adjustable twisted link shaped open lugs or ears, so aligned
upon said shaft as to form a left or right conveyor, a secondary cylinder
containing a second shaft with a spiral blade thereon and provided
with a perforated bottom, a frame underneath carrying a plurality of screens
with blanks, plates and discharging troughs, said frame vibrated by means of
eccentrics and communicating with air shafts, operated by a fan and blower, as
und for the purpose specified.
12. In a malt cooling, scouring and cleaning machine, constructed with a
compartment underneath, containing a horizontal screen, a trough connected
therewith and a blank plate underneath, a second inclined screen with a second
blank plate underneath discharging into a second trough, a third screen pro-
vided with a delivery chute and a dust receiving pan & said screens and blank

page_text: plates removable and adaptable for various kinds of grain as and for the purpose
specified.
Data: 1041 Janua
1900
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow,
Applicant's Patent Agents.