IMPROVEMENTS IN CRUSHING MILLS
Year: 1884

page_text: I ALFRED GEORGE BROOKES of the firm of Wm Brookes & Son of 55 Chancery
Lane in the County of Middlesex Fellow of the Institute of Patent Agents do
.hereby declare the nature of my invention for IMPROVEMENTS IN CRUSHING
MILLS to be as follows:-
This invention relates to improvements in mills for crushing clay, stones and
similar material; and the object of the improvements is the application of a rolling
ball for crushing the said inaterial inside of or within the recess of a rotating and
oscillating or swinging basin and the mean's for adjusting the inclination of this
basin.
8
According to my invention a heavy ball of stone, iron or other suitable material
is placed inside of or within the recess of a basin, in the centre of which is fasteneil
an upright shaft. This shaft, which rests with both ends in suitable bearings, is
inclined towards the vertical; the upper bearing is arranged movably in such a
manner as to be moved horizontally in order to adjust the inclination of the shaft
and the basin fixed thereon. The basin may be provided at the bottom with a
geared ring; into which engages a bevel-wheel mounted upon a rotating horizontal
shaft thus transferring the rotary motion to the inclined basin and causing the
ball to roll, whereby the material placed in the basin is crushed to any suitable
degree of fineness depending relatively from the duration of its treatment in the
basin:
In some cases it may be preferable to support the bearing of the upper end of
the upright shaft by a rotating crank and to guide the lower one by means of a
globe-bearing in the frame or base-plate of the machine thus causing the shaft to
describe a cone during the rotation of the crank. Also this shaft may be provided
with suitable means for adjusting its inclination by placing either the bearing of
the shaft in the crank more or less far from the centre of the crank, or by lowering
the crank itself in order to shorten the distance between the lower bearing of the
shaft and the crank..

page_text: Improvements in Crushing Mills.
I ALFRED GEORGE BROOKES of the firm of Wa Brookes & Son of 55 Chancery.
Lane in the County of Middlesex Fellow of the Institute of Patent Agents, do
hereby declare the nature of my invention for IMPROVEMENTS IN CRUSHING
MILLS and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
This invention relates to improvements in mills for crushing clay, stones, and
similar material; and the objects of my improvements are the application of a
'rolling ball for crushing the said material inside of or within the recess of a
rotating and oscillating or swinging basin and the means for adjusting the
inclination of this basin.
I attain these objects. by the mechanism illustrated in the accompanying
drawings, which show two modifications of the said mills and in which
Figure 1 is a side elevation, partly in section of a crushing mill with inclined
rotating basin; Figure 2 is a front view thereof, and Figure 3 a top view of head
plate showing the adjustable bearing of the inclined shaft. Figure 4 is a side
elevation partly in section, of a crushing mill with swinging basin; Figure 5 is a
front view and Figure 6 a plan thereof..
Similar letters refer to similar parts throughout the several views.
According to my invention a heavy ball a of stone, iron or other suitable
material is placed inside of or within the recess of a basin b, in the centre of which
is fastened an upright shaft c. This shaft c, which rests with its upper end in a
bearing and with the lower end in a bearing k, is inclined to the vertical..
In the construction as shown by Figures 1 to 3 the head plate g is arranged
movably in such a manner as to be raised or lowered on the columns or stands h
in order to adjust conveniently the inclination of the shaft c and the basin b fixed
thereon; the set screws. secure the plate g in the position required. The upper
bearing is therefore provided with pivots which rest in the adjustable support m.
To the bottom of the basin b is fastened a geared ring d, into which engages a
rotating bevel-gear e, thus causing the basin b to rotate; the conical roller f
supports the basin at its lowest point.
In the construction as illustrated by Figures 4, 5 and 6 the rotation of the
basin bis caused in the following manner. The upper bearing rests at the end
of a horizontal crank n fastened to the rotating shaft o; thus the shaft c the
lower end of which is supported by the globe-bearing k describes during the
rotation of the crank na cone. In consequence thereof the lower rim of
the basin b rolls around the ring q, and the ball a by gravity rolling to the lowest
point of the basin crushes during such advancing motion the material, whereover
it passes. To adjust the inclination of the shaft c and the basin 6 either the
crank n may be lowered or raised on its shaft o and fixed in the position required
by the set screw p, or the bearing may be neared to or removed from the centre
of rotation of the crank n.

page_text: Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. In crushing mills the combination of the ball a with the inclined basin b. and
shaft c, substantially as and for the purpose specified.
2. In crushing mills the combination of the ball a, the basin 6 and shaft o with
the geared ring d and bevel-gear e, substantially as set forth.
3. In crushing mills the combination of the ball a, basin b and shaft c with the
adjustable bearing pivoted in the support m and the head plate g adjustably
arranged on the stands h, substantially as specified.
4. In crushing mills the combination of the ball a, basin b and shaft c with the
crank n and rotating shaft o, substantially as described.
Dated this 11th day of September 1885.
WM BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the said Alfred George Brookes.