Year: 1887

page_text: Date of Application, 7th Mar., 1887
Complete Left, 7th Dec., 1887
Complete Accepted, 13th Jan., 1888
1, EDWARD WILSON, of Commercial Road, Exeter, in the County of Devon,
Engineer, do hereby declare the nature of this invention to be as follows:-
.
My invention relates to a machine for crushing, grinding or disintegrating substances
which require to be reduced from large or coarse particles or bodies to a state of fine
division.
For this purpose I employ a casing preferably of cast iron and to its opposite sides
I secure two circular plates or discs. Around the periphery of such discs 1 arrange
screens or sieves of any desired degree of fineness depending upon the degree of
fineness to which it is desired to reduce the substance to be acted upon. Upon each
of the discs a series of ribs or projections are formed, such projections starting from
or near the centre and extending preferably radially towards the periphery for a
certain distance when they branch off at an angle so as to form approximately tangents
to the centre shaft, the angle being in an opposite direction to that in which tho
machine is intended to revolve. A centre shaft passes through one or both of the
discs and carries a series of beaters preferably consisting of bars of iron or steel,
such beaters being arranged to revolve between the two discs with their edges in more
or less close proximity to the projecting ribs on such discs. The beaters are preferably
arranged radially on the centre shaft.
A hopper or shoot is arranged to deliver the material to be acted upon through the
casing to the interior of the discs preferably at a point near the centre. The radial
portion of the ribs on the discs directs the material to be reduced towards the centre
of the discs, and the coarse or large particles of such material are thus brought in
the path of travel of the revolving beaters, which by their rotation act on the material
and throw it outwards with great force towards the periphery of the discs. The
centrifugal action due to the rotation of the beaters will cause the material to be
thrown with great force against the tangential portion of the ribs or projections on
the discs, and after striking saine it will again fall towards the centre, when the
beaters will again act upon it and throw it outwards in contact with the ribs or
projections, the action being repeated until the material is reduced to the requisite

page_text: state of division to enable it to pass through the meshes of the screens or sieves fixed
to the periphery of the discs, and the fineness of which sieves or screens will con-
sequently depend upon the state of division to which it is required to reduce the
material, and such screens or sieves can be changed to suit different requirements.
The fine material will pass between the projecting ribs to the periphery of the discs
and pass out through the screens or sieves.
The shaft carrying the beaters can be supported and actuated in any suitable
manner, but I prefer to employ a bracket or frame which I secure to the casing of
the disintegrator at the opposite side to where the material is supplied, such-bracket
being provided with bearings to support the centre shaft and carrying a pulley or a
toothed gear wheel (actuated in any suitable manner) between the bearings. The
shaft in this case need only pass through one of the discs, its inner end terminating
between the two discs where the beaters are secured to it.
Dated this 7th day of Mash 1007

page_text: I, EDWARD WILSON, of Commercial Road, Exeter, in the County of Devon,
Engineer, 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 :-
My invention relates to a machine for crushing, grinding or disintegrating substances
which require to be reduced from large or coarse particles or bodies to a state of fine
division, such machine being illustrated in the accompanying drawings, in which
Fig. 1 is a longitudinal section, and
Fig. 2 a transverse section thereof.
I employ a casing A preferably of cast iron, and to its opposite sides I secure two
circular plates or discs B, B¹. Around the periphery of such discs I arrange screens
or sieves C of any desired degree of fineness depending upon the degree of fineness
to which it is desired to reduce the substance to be acted upon. Upon each of the
discs a series of ribs or projections D are formed, such projections starting from or
near the centre and, as shown, extending preferably radially outwards towards the
periphery for a certain distance, when they branch off at an angle so as to form
approximately tangents to the centre shaft, the angle being in an opposite direction
to that in which the machine is intended to revolve. It will be readily understood
that the arrangement of ribs or projections D may be varied, and in Fig. 2 of the
drawings a set of intermediate tangential projections 1) is shown at the outer edge
of the disc3 B, B', between the projections D, such intermediate projections not
extending radially inwards like the others, but terminating at approximately the same
distance from the centre of the discs as where the radial portions of the projections D
join the tangential portions.
A centre shaft E passes through one or both of the discs B, 3, and carries a series
of beaters F, preferably consisting of bars of iron or steel, such beaters being arranged
to revolve between the two discs B, B¹, with their edges in more or less close proximity
to the projecting ribs D, D', on such discs. The beaters are preferably arranged
radially on the centre shaft E, as shown.
A hopper or shoot G is arranged to deliver the material to be acted upon through
the casing A to the interior of the discs, preferably at a point near the centre. The
radial portion of the ribs D) on the discs B, B', directs the material to be reduced,
towards the centre of the discs, and the coarse or large particles of such material
are thus brought in the path of travel of the revolving beaters F, which by
their rotation act on the material and throw it outwards with great force towards
the periphery of the discs. The centrifugal action due to the rotation of the
beaters will cause the material to be thrown with great force against the tangential
portion of the ribs or projections D, D¹, on the discs, and after striking same it will
again fall towards the centre, when the beaters will again act upon it and throw it
outwards in contact with the ribs or projections, the action being repeated until the

page_text: material is reduced to the requisite state of division to enable it to pass through the
meshes of the screens or sieves C, fixed to the periphery of the discs B, B¹, and
the fineness of which sieves or screens will consequently depend upon the state of
division to which it is required to reduce the material, and such screens or sieves can
be changed to suit different requirements. The fine material will pass between the
projecting ribs to the periphery of the discs, and pass out through the screens or
sieves.
The shaft E carrying the beaters F can be supported and actuated in any suitable
manner, but I prefer to employ a bracket or frame H which I secure to the casing A
of the disintegrator at the opposite side to where the material is supplied, such bracket
being provided with bearings I, I, to support the centre shaft E, which carries a
pulley K or a toothed gear wheel (actuated in any suitable manner) between such
bearings. The shaft E in this case need only pass through one of the discs (B), its
inner end terminating between the two discs where the beaters F are secured to it, as
shown.
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 1
claim is
1. The improved disintegrator consisting of two discs connected by a screen or
sieve at their outer edges, and provided with a series of ribs or projections on their
inner faces, between which a series of beaters carried by a central shaft is caused to
rotate, the material to be disintegrated being supplied between the discs preferably at
a point near the centre thereof, substantially as specified.
2. Making the ribs or projections on the discs referred to in the preceding claim,
so that they extend radially outwards from a point near the centre and then branch off
at such an angle as to form approximately tangents to the centre shaft carrying the
beaters, the angle being in an opposite direction to that in which the beaters are
intended to revolve, substantially as specified.
3. Supporting the shaft carrying the beaters described in claim 1, on the opposite
side of the discs to where the feed is effected, by a bracket or frame fixed to the
casing, and between the bearings of which bracket or frame a pulley or gear wheel
is mounted on the shaft and serves to actuate same, substantially as specified.
Dated this 7th day of December 1887.