AN IMPROVED PURIFIER OR SEPARATOR
Year: 1885

page_text: I, JAMES GRAHAM WALKER of Bonnington, in the County of Midlothian, North
Britain, Mill Master do hereby declare the nature of the said invention for AN
IMPROVED PURIFIER OR SEPARATOR to be as follows:-
This Invention, which relates to an improved purifier or separator, is especially
applicable for separating ground substances such as ground wheat or other grains,
besides being adapted for the purification or separation of foreign matter from
seeds.
The Invention consists of a rectangular casing placed preferably in a slight
inclined position, and down through which the ground grain or other bodies to be
purified or separated fall from a hopper or from the equivalent thereof situated
above the upper part of the casing. Within the casing a series of louvres are
arranged and as the ground material or seeds fall in front of these, the exhaust
with which the casing is connected sucks off the lighter and foreign material or
substances through the louvres. The material from which the lighter and foreign
parts have been separated is collected in a bag or equivalent receptacle at the
lower part of the casing, and the other matter collected from the exhaust.
Dated this airth of Orishan 100-
J. H. JOHNSON, DAY & JOHNSON,
Petitioner's Agents.

page_text: I, JAMES GRAHAM WALKER of Bonnington, in the County of Midlothian, North
Britain, Mill Master do hereby declare the nature of my invention for AN IMPROVED
PURIFIER OR SEPARATOR and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement:-
My Invention, which relates to an improved purifier or separator, is especially
applicable for separating ground substances such as ground wheat or other grains,
besides being adapted for the purification or separation of foreign matter from
seeds.
The Invention consists of a rectangular casing placed preferably in an inclined
position and down through which the ground grain or other bodies to be purified
or separated, fall from a hopper or from the equivalent thereof situated above the
upper part of the casing. Within the casing a series of louvres are arranged and
as the ground material or seeds fall in front of these, the exhaust with which the
easing is connected sucks off the lighter and foreign material or substances through
the louvres. The material from which the lighter and foreign parts have been
separated, is collected in a bag or equivalent receptacle at the lower part of the
casing, and the other matter collected from the exhaust.
In order that my said Invention may be properly understood and readily carried
into effect, I will now proceed to describe the drawings hereunto annexed.
Figures 1 and 2 are respectively a side and an end elevation of an improved
purifier or separator constructed according to my present Invention.
Figure 3, is an elevation of that side of the same opposite to that represented at
Figure 1.
Figures 4 and 5 are respectively a longitudinal and a transverse section of the
same.
Figure 6, is a view of the same, partly in side elevation and partly in longi-
tudinal section.
Figure 7, is a horizontal section of the same,
My present Invention, as shewn upon the annexed drawings, consists of the
rectangular casing a; which is supported in an inclined position by and upon the
horizontal casing b. The casing a, is so arranged with the partitions c, and d, and
louvres e, as to practically divide the interior of the said casing into the three
shoots f, g, and h. The lower end of the shoot f, is connected through the opening i,
and horizontal casing b, with the discharge outlet j, through which the heavy grain
or seeds is or are discharged in the manner hereinafter described. The shoots g,
and h, are so arranged that their lower ends discharge respectively through the
openings k, and 1, into the horizontal casing b, as hereinafter explained. The
shoot f, is provided with the ports m, which are fitted with the sliding doors or
valves n, and o, by the raising of which, air is admitted through the said ports m,
to the interior of the shoot f. The shoot f, is further provided with the door
or cover p, by the removal of which, from time to time, the progress of the purify-
ing or separating process may be readily inspected, and by the provision of the
inclined plates q.
the grain, seeds or other material being operated upon, is partially

page_text: .
checked in its descent down through the shoot and thereby prevented from passing
through the machine without having been long enough subjected to the purifying
or separating action of the said machine. The shoot g, is provided with the
valve r,
which may be opened or closed by means of the fly-nut 8, or its equivalent
and which valve is so constructed with the indices t, that its position may be
readily ascertained from either side of the machine. At the upper part of the'
partition c, the port u, is formed, and the said port is provided with the sliding
door or valve v, by raising or opening which, air is admitted from the shoot g
to the shoot h. At the upper part of the purifier or separator the charging)
hopper w, is so secured as to discharge its contents down into the shoot if, and
in the entrance. to the said .shoot f, the feed roller, is provided. The front:
of the hopper w, is fitted with the slide y, by the adjustment of: which the
contents of the said hopper may be charged into the purifier or separator at
a greater or less speed. The horizontal casing b, is divided or.] partitioned off
by the inclined board z, or its equivalent and the space above this, 'is divided:
up by the vertical partitions a', so as to form the two side chambers b¹, and c¹,
and the central chamber d, as represented more particularly at Figure 7 of the
annexed drawings. The fan el, which is carried upon the horizontal shaft f¹, is
free to rotate in the central chamber d', and when so rotating in the direction
indicated by the arrow g¹, (Figure 4) draws the air through the purifier or
separator and through the openings h¹, which are formed in the partitions a¹. The
shaft f1, is supported in the vertical sides of the horizontal casing b, and at one of
its ends the band pulley ¹, is secured. The belt 7, passes around this pulley i¹,
and around the fly-wheel'k', to which motion is imparted by means of the handle 1,
or in the case of a large apparatus, by a driving belt. Upon the end of the
shaft m', opposite to that upon which the fly-wheel ', is secured, the pulley n', is
rigidly carried and the band o¹, which passes around this pulley n¹, also passes
upwards and around the pulley p¹, which is secured upon the feed roller shaft q¹.
In the operation of the herein before described purifier or separator, the grain,
seeds or other material to be therein treated are initially charged into the hopper w,
from which they are fed with more or less speed, according to the position of une
slide y, down into the shoot f. In passing down this shoot f, the lighter particles
of the said material are drawn through between the louvres e, by the action of the
fan e¹, which, it is to be understood, is rotated at a high speed in the direction
indicated by the arrow g¹, Figure 4. These lighter particles may be drawn wholly
down through the shoot g, when the valve r, is open and the sliding door or valve v,
closed, or, when the valve r, is closed and the valve v, is open the said lighter
particles may be drawn wholly through the port u, into and down through the
shoot h; or, in place of so conducting the said lighter particles they may, in the
manner indicated by the arrows at Figure 4, be caused simultaneously to pass
partly down through the shoot g, and partly down through the shoot h, by
opening both the before mentioned valves 7, and v. These lighter particles so
drawn off through the shoots g, and h, then pass in the directions indicated by the
arrows shewn more particularly at Figure 7, into the side chambers b¹, and c¹,
through the openings h¹, and thence ejected from the purifier or separator and
into any desired receptacle.
The heavier particles of the grain, or other material under treatment, together
with any lighter particles which may be carried down therewith, when passing
through the shoot f, fall or shelve from one louvre e, to the next louvre below it
and the air which is drawn in to the shoot f, through the ports m, and drawn off
therefrom between the louvres e, separates the lighter from the heavier particles,
and thereby leaves only the said heavier particles free to escape through the
outlet j, by which said outlet they are discharged into a bag or other receptacle.
I desire it to be understood, although I have herein before described and shewn
upon the annexed drawings a machine in which are embodied the essential features
of my Invention, that without departing from such essential features, I may vary
the same in many ways, for example in place of embodying the aforementioned

page_text: improvements in an independent machine in the manner hereinbefore described
they may be arranged so as to extend from floor to floor of a mill, that is to say,
the apparatus may be supplied with grain at one floor of a building and in its
passage downwards through the inclined casing a, which may extend to the floor
next below it, the said grain is deprived of its lighter particles or impurities.
These lighter particles are drawn off by a vertical or horizontal fan or its equivalent
which may be situated at any convenient part of the building and the heavier
particles after falling from the shoot ƒ, may be conducted to any desired receptacle.
or to any machine to be therein subsequently treated. I desire it to be further
understood that in place of dividing the inclined casing a, into three shoots as
shewn upon the annexed drawings, the said casing may be divided into two, three
or a larger number of shoots.
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:
The improvements in purifying or separating machines consisting of the inclined
casing a, the interior of which is divided into shoots into one of which the material
to be treated is charged at its upper part and in its passage down through which,
the lighter particles of such material are separated therefrom by the action of the
fan e, or its equivalent and discharged at one outlet, and thereby leaving the
heavier particles free to be discharged at the outlet j, that is to say an outlet
distinct from that at which the said lighter particles are discharged all substantially
as and operating in the manner and for the purposes hereinbefore set forth with
reference to the annexed drawings.
T
1000