Improved Grain-cleaning Machine.
Year: 1890

page_text: Date of Application, 5th Nov., 1890-Accepted, 6th Dec., 1890
COMPLETE SPECIFICATION.
Improved Grain-cleaning Machine.
I, GEORGE BARKER of 77 Colmore Row Birmingham in the County of Warwick
Consulting Engineer do hereby declare the nature of the said invention as communi-
cated to me from abroad by Alexander Laidlaw of No. 7° O'Hara Avenue in the City
of Toronto in the County of York in the Province of Ontario Canada Manufacturer
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
The object of the invention is to design a machine which will effectually accomplish
within itself the combined work of a separator, scourer and polisher, and it consists,
essentially, of vibrating screens arranged in connection with corrugated blades
revolving in a perforated cylinder, sponts and air legs being arranged in connection
with the vibrating screens and perforated cylinder, and with a revolving brush
arranged to finally act upon the grain before it is discharged from the machine.
Figure 1 is a perspective outside view of my improved grain cleaner, a portion of
the side being broken away to expose the exterior construction.
Figure 2 is a sectional elevation through a-y.
Figure 3 is a cross section through a. b.
Figure 4 is a cross section through c. d.
Figure 5 is a perspective detail of the scouring blades.
A, represents a shoe containing a suitable number of screens or sieves, and
deriving a vibratory movement through the revolving shaft, B, or in any other of
the known ways for producing the said movement.
The grain which is first placed on the sieves in the shoc, A, passes through the
said sieves and is conveyed through the spout, C, into the perforated cylinder, D, the
exhaust blast from the fan, E, acting upon the grain as it passes from the shoe, A,
into the perforated cylinder D.
F, is a shaft passing through the centre of the perforated cylinder, D, and carried
on suitable bearings arranged as indicated.
A series of corrugated blades, G, are fixed to the shaft, F, to which shaft the fan E
is also secured.
The grain which enters through the spout. C, into the cylinder, D, at one end is
conveyed to the other end of the said cylinder by the revolving of the said corrugated
blades, and during the progress through the said perforated cylinder, the grain is
thoroughly scoured and the dirt and other matter scoured from the grain is drawn
by the action of the exhaust fan, E, from the grain, and is discharged out of the
spout, H.
When the scoured grain reaches the end of the stationary perforated cylinder, D,
at which the grain spout, I, is located, it is conveyed by the said grain spout into
the air leg, J, which conveys it onto the top sieve in the vibrating shoe, K.
While passing through the air leg, J, the exhaust action of the fan, E, acts upon
the falling grain and conveys from the said grain any dust or small grain which
may have remained in it after passing through the stationary perforated cylinder, D.
After passing through the sieves in the vibrating shoe, K, the grain is conveyed by
the spout, L, (see Figures 3 and 4) into the cylinder, M, the bottom of which forms a
corrugated concave and may be adjusted to or from the brush.
A rotating brush, N, revolves within the cylinder, M, in the direction indicated
by arrow, and carries the grain from the spout, L, to the mouth of the spout, O,
through which the grain, now thoroughly polished by the action of the brush, N, is
discharged from the machine.
I do not wish to confine myself to any particular means for imparting vibratory
movement to the shoe, K, but for the purpose of this Specification I indicate in the

page_text: drawings a revolving shaft, P, by which the necessary vibratory movement is conveyed
to the said shoe.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1st. In a machine provided with sieves contained in the vibrating shoc, A, a
horizontal stationary perforated cylinder, D, connected to the bottom of the shoe. A,
by the spout, C, in combination with corrugated blades. G, fixed to the revolving
shaft, F, located within the perforated cylinder D substantially as specified.
2nd. In a machine provided with sleeves contained in the vibrating shoc, A, a
horizontal stationary cylinder, D, connected to the bottom of the shoc, A, by the
spout, C, in combination with corrugated blades, G, fixed to the revolving shaft, F,
located within the perforated cylinder, D, a spout, I, connecting the interior of the
perforated cylinder, D, with the air-leg, J, and exhaust fan, E, designed to act on the
cylinder, D, and air-leg, J, substantially as specified.
Brd. In a machine provided with sieves contained in the vibrating shoe A a
horizontal stationary perforated cylinder, D, connected to the bottom of the shoe, A,
by the spout, C, the corrugated blades, G, fixed to the shaft F and contained within
the perforated cylinder D in combination with a spout or passageway connecting the
interior of the cylinder G with the top sieve on the vibrating shoe K and a rotating
brush N contained in the cylinder M having its lower half formed by an adjustable
corrugated concave, substantially as specified."
4th. In a machine provided with sieves contained in the vibrating shoe, A, a
horizontal stationary perforated cylinder, D, connected to the bottom of the shoe, A,
by the spout C. with corrugated blades, G fixed to the revolving shaft F located
within the perforated cylinder D a spout I connecting the interior of the perforated
cylinder D with the air leg J and exhaust fan E designed to act on the cylinder D
and air leg, J, sieve contained in the vibrating shoe K spout L rotating brush N
cylinder M and spout O substantially as specified.
Dated this 4th day of November 1890.
GEORGE DARKER,
77, Colmore Row, Birmingham.