Improvements in a Machine for Scouring Grain.
Year: 1891

page_text: Date of Application, 28th Apr., 1891-Accepted, 15th Aug., 1801
COMPLETE SPECIFICATION.
Improvements in a Machine for Scouring Grain.
I, DENNIS ELIAKIM SIBLEY, of 405 Rialto Building, Chicago, in the County
of Cook and State of Illinois, United States of America, Manufacturer, do hereby
declare the nature of my invention for IMPROVEMENTS IN A MACHINE FOR
SCOURING GRAIN, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
Figure 1 is a perspective view of the machine having a portion of its outer case
broken away to show the interior working parts. Fig. 2 is a central vertical
section of the case of the machine and an end view of rollers and endless brush-
belt within the case; and Fig. 3 is an end elevation of the machine, showing
the means for connecting and driving the roller brushes and for driving the belt
brush.
This invention relates to certain improvements in grain-scouring machines, which
improvements are fully set forth and explained in the following Specification and
claims.
Referring to the drawings, A represents the outer case of the machine, having an
inlet-spout B near its upper end and the discharge-sponts F and G near the lower
end, the spout F being provided with a suction fan-blower J for removing and
discharging the dust from the grain, and the spout G serves as an outlet for the
cleaned grain.
D is an endless brush-belt mounted on the drums P P, arranged one near the top
of said case and one near its bottom. It is intended that the upper drum shall
be driven by means of belt o to drive the said belt in the direction shown by the
arrows.
S are brush-rollers arranged in a vertical train in front of the brush-belt D in
such manner that their brushes intermesh with those of the brush-belt.
Po are guide-rollers respectively arranged opposite the said brush-rollers against
the back of the brush-belt, and are for the purpose of holding the belt against the
brush-rollers. These brush-rollers are intended to be driven in the direction shown
by the arrows, but at less speed than the brush-belt, so that the brush of the belt
will pass rapidly between the brush of said rollers.
L'are deflecting-boards arranged between each pair of brush-rollers, and are for
respectively conducting the falling grain between the brush-rollers S and the brush-
belt D in its descent from one brush-roller to the other. It is intended that the
action of the brush of the helt and of the brush-rollers on the grain as it passes
between them will scour and polish it and remove all and any objectionable
substances from the grain, giving it a clean and bright appearance. A series of
brush-rollers are shown as being used, so that the grain may be acted upon several
times in passing through the machine.
The suction fan-blower J is used for removing the dust and refuse matter that
has been taken from the grain, while the grain, being heavier, will be discharged
from the spout G. The roller brushes are each provided on the outer ends of their
shafts with worm-wheels W, which mesh with worms Z' on the vertical shaft J¹,
which has its lower end stepped in the beam E, and is boxed to the outer side of
the machine by means of the boxes F. Said shaft is provided on its upper end
with bevel-gear H, which meshes with bevel-gear H' on the drive-shaft J', by
means of which bevel-gears shaft J' is rotated and drives the said roller-brushes.
By means of regulating the size of the worms and worm-wheels the said roller
brushes may be driven at different speeds if for any reason that is necessary.
When it is desired to use the machine as an oat-clipper, the brushes may be
made of wire strong enough to remove the hulls and dead points from the grain.

page_text: The process for scouring the grain consists in passing the grain between the inter-
meshing brushes arranged to rotate toward each other but at different speels, whereby
the action of the brushes propels the grain through between then an engages it
in such manner as to remove all objectionable. substances the.e'rom and render it
clean and bright in appearance as new grain.
In operation the grain is let in at the spout B and falls between the belt brush D
and upper roller brush S, and the action of the two brushes upon the grain serves
to remove any objectionable substance from it. A series of such roller brushes are.
used in connection with the belt brush, so that the grain will be acted upon several
times on its way through the machine so it will be thoroughly scoured before.its
discharge. Any number of roller brushes may be used, as before stated, and they
may be rotated at different speeds if for any reason that is necessary or desirable;
but it is always necessary to rotate the belt brush at a higher speed than the roller
brushes in order to cause the brushes to act upon the grain and propel it through
between them as stated.
If desired, the guide-rollers may be substituted with a back board as a backing
for the belt to hold it up in contact with the brush-rollers; but the guide-rollers
are found to be preferable, so far, at least, as friction is concerned.
In order to prevent grain from entering the fan-blower case, a screen V is placed.
across its inner end and to agitate the falling grain so as to separate it from the
dust the arms Z are used on the rear inner side of the spout G, which enables the
fan to remove the refuse matter in a better manner. The roller brushes S may be
rotated in the opposite direction from that indicated by the arrows, if for any reason
it might be found best when the machine is used on different kinds and quality of
grain.
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 :-
1.. In the grain-scouring machine shown and described, the combination, with
the case A, having the inlet-spout B and outlet-spouts F and G, of the drums P,.
brush-belt D, mounted on said drums, brush-rollers S, arranged in a vertical train
against the said belt brush, so their brushes will intermesh with those of said
belt brush and rotate at a different speed from said belt brush, guide-rollers R for
holding said belt brush in contact with said roller brushes, deflecting-boards L
screens V, and suction fan-blower J, all arranged to operate substantially as and
for the purpose set forth.
2. In the grain-scouring machine shown and described, the combination of
drums P, belt brush D, mounted on said drums, brush-rollers S, arranged in a
vertical train against said belt brush so their brushes will intermesh with those of
the roller brushes and rotate at a different speed from said belt brush, guide-
rollers R for holding said brush-belt in contact with said roller brushes, deflecting-
floors L, worm-wheels W, arranged on the ends of the shafts of said roller brushes,
shaft J, worms Z', secured on said shaft and arranged to mesh with said worm-
wheels, and bevel-gears H H' and shaft J, all arranged to operate substantially
as and for the purpose set forth.
3.. In the grain-scouring machine shown and described, the combination, with
the endless brush-belt B and roller brushes S, of the outlet-spout F, having the
fan J, the screen V, arranged across the inner end of said spout, and spout G,
having the series of arms Zarranged to extend across its inner end, substantially
as and for the purpose set forth.
Dated this 98th dow of Anril 1891.
F. W.. BARKER,
Applicant's Agent..