An Improved Grain Scouring and Cleaning Machine.
Year: 1894

page_text: Date of Application, 5th Jan., 1891
Complete Specification Left, 3rd Oct., 1894-Accepted. 3rd Nov., 1894
PROVISIONAL SPECIFICATION.
An Improved Grain Scouring and Cleaning Machine.
We, PETER PROVOST, Inventor, BYRON SYLVESTER WAITE, Mechanic,
ALVAH LITTLEFIELD SAWYER, Mechanic, and RONSOM JONOTHON SAWYER,
Mechanic, all of Menominee in the County of Menominee and State of Michigan,
United States of America, do hereby declare the nature of this invention to be
as follows:-
The machine of this invention is constructed with a frame having on its base
a step in which is carried a vertical main driving shaft in two lengths coupled
together a little above the middle. The upper length carries a suction fan
revolving in a casing secured to the frame and having an outlet for carrying off
impurities collected in the machine. The bottom length of the driving shaft carries
a disc revolving at the top of a casing provided with a conical sieve and having
outlets leading into a casing in communication with the suction fan.
At the top
of the sieve casing there is a fixed disc. The grain is fed in between the revolving
and the fixed disc and is thereby scoured and cleaned, the suction of the fan
causing a loosening and removal of impurities which latter together with the grain
pass over the edge of the revolving disc into an annular channel from which they
pass down into the sieve, then through a hopper and into the casing in com-
munication with the suction fan, from which casing the grain drops down outside
the machine.
Dated this 5th day of January 1894.
THOMAS R. SHILLITO,
89, Chancery Lane, London, W.C., Agent for the Applicants.
COMPLETE SPECIFICATION.
An Improved Grain Scouring and Cleaning Machine.
We, PETER PROVOST, Inventor, BYRON SYLVESTER WAITE, Mechanic,
ALVAH LITTLEFIELD SAWYER, Mechanic, and RONSOM JONOTHON SAWYER,
Mechanic, all of Menominee in the County of Menominee and State of Michigan,
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
The object of this invention is to provide an improved grain scouring and
cleaning machine which is simple in construction, durable, and efficient.
invention consists of certain parts and details, and combinations of the same.
In the drawing
Fig. 1 is a vertical section of the improved machine.
Fig. 2 a plan view of the top part of the casing. Fig. 3 an edge view thereof.
Fig. 4 a plan view of the casing ring and Fig. 5 a detail sectional view.
A is a frame provided on its base B with a step C in which is journalled the
lower end of a main driving shaft D coupled by a couping D' with a second shaft D*
journalled at its upper end in a cross beam A' of the frame A. On this upper
shaft D2 is secured a suction fan E arranged within a suitable casing E' supported

page_text: on the frame A and provided with an outlet spout for carrying off impurities
collected from the machine.
In the lower part of the frame A is arranged a casing F provided with an
inclined partition F' discharging through a chute G out of the casing into a suction
channel H which extends upward and discharges at its upper end into the top of
the casing E' of the suction fan E. A second partition is arranged under the
partition F within the casing F and over this partition passes the grain through
a chute G¹ into a second channel H' also leading upwards to the casing E' of fan E.
The lower end of the channel H is contracted as shewn, so that the air passing into
said channel is limited and considerable draught is created within the casing F
above the partition F'. The other suction channel H' is open at its lower end for
the discharge of the scoured and polished grain to the outside of the machine.
The upper ends of the channels H, H¹, are connected together by a channel H2
which discharges into the top of the casing E' as above mentioned. H³, H*, are
valves for regulating the suction of the fan E.
On the top of the casing F is secured a conical sieve extending_above the
partition F and connected at its lower end with a circular chute J arranged
concentric with the shaft D and held in the partition F¹. The lower end of the
chute J discharges upon the upper end of the partition F so that the grain may
pass down the latter. On the top of the casing F is secured a ring K having
lugs K¹ for the fastening bolts. A second set of lugs K' is provided near the top
of the ring K to meet similar lugs L' on a ring L and the two parts are bolted
together. In ring L, L' is a bearing or guide for the shaft D. On the under side
of the ring L is secured a woven wire disc N formed with an opening for the
passage of the grain to be scoured, spout O leading to the said opening (Fig. 1).
The ring K is formed with an inwardly extending annular flange K³ with a
shoulder K at its upper edge so as to form an annular groove for the passage of
the grain after passing over the scouring disc Q. This latter is preferably made
of woven wire in two courses and attached by suitable means to the solid disc P
which has at is under side an annular shoulder P¹ extending into the circular groove
of the ring K in which K (Fig. 4) are radial slots for the passage of the grain to
the conical sieve I. K is an aperture for permitting the passage of a large
quantity of grain at a time into the sieve I. To hold the ring L securely in place
it is provided with projections L which fit over the outside of the ring K.
In the front and rear of the casing F are arranged apertures R, R' the former
admitting air to the casing underneath the sieve I so as to loosen any impurities
adhering to the sieve, the other aperture R' serving a like purpose in the part of
the casing enclosed by the partitions F1, F2, all the impurities within the machine
being constantly removed by the action of the fan E.
The operation is as follows:-Upon the rotation of the shafts D, D, with
scouring discs P, Q, and fan E, the gram is passed through the inlet chute () an
between the discs N and Q so that the action of the revolving disc rubs the grain
against the fixed disc N, the suction of the fan at the same time loosening and
removing the impurities which with the grain pass over the edge of disc Q into the
annular groove of ring K, passing thence through slots K and aperture K® into
the conical sieve I and from the latter through the hopper or chute J over the
partition F2 to the chute G' and channel H' the grain passing to the outside of the
machine. Of the impurities, part passes through the sieve I to partition F' and
chute G and part into the channel H' they being in both cases finally drawn
upwards by the fan and discharged from the machine as previously stated.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is :-
1. In a grain scouring and cleaning machine, the combination with a casing and
a conical sieve carried thereby, of an annular groove or trough extenling over
said sieve and having openings in its bottom, a revolving scouring disc projecting

page_text: over and discharging into said groove or trough and a stationary scouring disc
above the revolving disc and through which the grain is discharged upon the
revolving disc, substantially as described and shewn.
2. In a grain scouring and cleaning machine, the combination with a revolving disc
carrying a woven wire scouring disc, of a ring constructed with an annular groove
into which the said scouring disc discharges, the groove being provided with slots
and an opening (or openings) for the passage of the grain, a fixed wire disc
supported on the top of said ring and a second ring bolted to the first named ring and
carrying the said second wire disc, substantially as described and shewn.
3. In a grain scouring and cleaning machine, the combination with a revolving disc
carrying a woven wire scouring disc, of a ring provided with an annular groove
into which the said scouring disc discharges, the groove being provided with slots
and an opening (or openings) for the passage of the grain, a fixed wire disc
supported on the top of said ring, a second ring bolted to the first named ring and
carrying the said second wire disc and downwardly extending projections arranged
on the said second ring to engage the first named ring, substantially as described
and shewn.
4. In a grain scouring and cleaning machine, the combination with the ring K
provided with a groove or trough, slots K and the opening K, of the ring L bolted
to the ring K and provided with a guide bearing L³, lugs L³ projecting from the
said ring and a scouring disc N made of woven wire and secured on the under side
of the said ring, substantially as described and shewn.
5. In a grain scouring and cleaning machine, the combination with the ring K
constructed as described, of the ring L bolted to the ring K and provided with a
guide bearing L³, lugs L³ projecting from said ring, a scouring disc N made of
woven wire and secured on the under side of said ring, and a solid disc P carrying
the woven wire disc Q located below the disc N and the annular shoulder Pi
projecting from the under side of the disc P, substantially as described and shewn.
Dated this 3rd day of October 1894.
THOMAS R. SHILLITO,
89, Chancery Lane, London, W.C., Agent for the Applicants.