Improvements in Apparatus for Sifting, Grading, and Purifying.
Year: 1889

page_text: Date of Application, 9th Apr., 1889
Complete Specification Left, 8th Jan., 1890-Accepted, 15th Feb., 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Sifting, Grading, and Purifying.
I, CHARLES HESSEY STUBLEY, of Kings Roller Mills Knottingley in the County of.
York, Miller, do hereby declare the nature of this invention to be as follows:-
The material to be graded and purified is fed from a hopper having at its bottom
an endless band passing around rollers. As the rollers revolve the band carries out
automatically a thin even stream which passes on to the upper sieve of a frame which
preferably carries three sieves, one above another and slightly inclined in opposite
directions. The frame is supported by hanging rods having ball and socket joints at
each end. Motion is given to the frame by cranks from two horizontal crank shafts
at right angles to each other, one shaft driving the other by means of bevelled wheels
which may have either the same or a different number of teeth. The sirtings and tailings
from the sieves are taken as required either to the next sieve or to purifiers. These
purifiers are provided with louvre boards of a special construction, the passages
the boards being made longer than is usual and having parallel sides. The adjusting
slides are also made to work vertically instead of parallel to the inclined boards.
between
I provide a separate exit and worm for each louvre and I also provide each exit
with a separate valve by which the exhaust is regulated and the various products
separated.
These improvements may be used either together or separately.
CARPMAEL & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Sifting, Grading, and Purifying.
I, CHARLES HESSEY STUBLEY of Kings Roller Mills, Knottingley in the County of
York Miller 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 material to be graded and purified is fed from a hopper having at its bottom an
endless band passing around rollers. As the rollers revolve the band carries out
automatically a thin even stream which passes on to the upper sieve of a frame which
preferably carries three sieves, one above another and slightly inclined in opposite
directions. The frame is supported by hanging rods having ball and socket joints at
each end. Motion is given to the frame by cranks from two horizontal crank shafts
at right angles to each other one shaft driving the other by means of bevelled wheels
which may have either the same or a different number of teeth. The siftings and
tailings from the sieves are taken as required either to the next sieve or to purifiers.
These purifiers are provided with louvre boards of a special construction, the passages
between the boards being made longer than is usual. The adjusting slides are also
made to work vertically.
I provide a separate exit and worm for each louvre and I also provide each exit
with a separate valve by which the exhaust is regulated and the various products
separated.
These improvements may be used either together or separately.
In order that my said Invention may be more fully understood and readily carried
into effect I will proceed to describe the drawings hereunto annexed.

page_text: Figure 1 is a plan of an apparatus, constructed according to my Invention, the feed
hopper being omitted.
Figure 2 is a front elevation.
Figure 3 is a vertical transverse section on the lines X, X, Figures 1 and 2 looking
to the left.
Figure 4 is a vertical transverse section on the lines Y, Y, Figures 1 and 2 looking
to the right.
Figure 5 is a vertical longitudinal section on the line Z, Z, Figure 1.
Figure 6 is an end elevation.
A is the feed hopper having at its bottom the endless band B which passes around
the rollers C, C. The hearings of the roller C are fixed whilst the bearings of the
roller Care in sliding blocks C which are capable of adjustment by screws so that
the tightness of the band B can be regulated. To one end of the axis of the roller (}
is fixed the band wheel D driven by a band from the wheel E' upon the shaft E. As
the rollers C, C' revolve the endless band carries with it a thin stream of material from
the bottom of the hopper and delivers it to the upper sieve E* which is carried in the
frame F which also supports the sieves E' E. The frame F is supported by means of
the four hanging rods G, G which are attached to it by means of ball and socket
joints G, and whose upper ends are supported by ball and socket joints G². The sieves
are worked by means of three cranks H H and I. The cranks H H are upon the
shaft K whilst the crank I is upon the shaft E. These two shafts are geared together
by means of bevelled pinions H' I' as shown.
In the drawings all three cranks have the same throw and the pinion His shown
with twice as many teeth as the pinion I', but the cranks might be of different throws
and. different numbers.of. teeth might be used, in fact the arrangements may be varied
almost indefinitely and many different motions may thus be given to the sieves.
In the arrangement of sieves shown the siftings from the sieve E pass to the top of
the sieve E whilst the tailings are taken away by a spout e to the left hand series of
purifiers Figure 5. The siftings from the. sieve E' pass by spout eas required whilst
the tailings pass to the top of the sieve E. The siftings from the sieve E go by the
spoute to the right hand set of purifiers Figure 5 whilst the tailings pass out by the
spout to the middle set of purifiers Figure 5.
It will be understood however that these arrangements may be varied and form no.
part of the present invention.
Between the spouts e e e³ and the three purifiers are feed hoppers with endless bands
similar to those of the hopper A.
The two purifiers on the right hand of Figure 5 are identically the same as each other,
but the left hand set differs in that the boards L between the louvres are. omitted.
The slides are vertical as shewn. They are actuated by means of pinions upon the
shafts O which gear with the racks N₁ fixed to them. The ends of the shafts O are.
provided with hand wheels O¹ by which they can be turned, spring catches O¹..being
provided which drop-into the teeth of the wheels 0¹. I may only place one-set of
wheels and catches between the sets of purifiers. The other set I place at the opposite
end to those shown on Figure 6. One set of these wheels and catches is shown in
Figure 6. P. Pare worms carried by the shafts Q which run-across the machine,
there being three worms to each shaft. The shafts Q are driven by-an endless band,
which passes over pulleys Q1 fixed to them, and a pulley Qfixed-upon the shaft K.
These worms carry the material from each pair of louvres and deliver to it
spouts P¹ by which it is led away to pipes or conduits not shown in the drawings. In-
this way the product from each pair of louvres may be collected separately.
RR are the valves-by..which the exhaust is regulated, a separate valve being
provided for each pair of louvres. Each valve R is provided with a handle R by..

page_text: which it can be set. The boards L of the two right hand sets of purifiers (Figure 5)
are pivotted and each is provided with a handle S¹ by which its inclination can be
adjusted.
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. Apparatus for driving sieves consisting of two sets of connecting rods inclined to
each other, whose ends are so jointed to the sieve and to the driving parts that they can
accommodate their motions to each other.
2. Apparatus for driving sieves consisting of two crank shafts inclined to each other
and connected to the sieves by rods having universal joints at each end.
3. Apparatus for grading and purifying in which each pair of louvre boards is
provided with a separate worm for carrying away the material.
4. Apparatus for grading and purifying in each pair of louvre boards is provided
with a separate valve for regulating the exhaust.
5. Apparatus for sifting grading and purifying substantially as described and shown
in the drawings.
Dated this 6th day of January 1890.