Improvements in Apparatus for Crushing or Pulverizing Ore and other Substances.
Year: 1890

page_text: Date of Application, 22nd Apr., 1890
Complete Specification Left, 21st Feb., 1891-Accepted, 21st Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Crushing or Pulverizing Ore and
other Substances.
We, GEORGE JOHN SMITH, of Camborne, in the County of Cornwall, Iron-
founder, and THOMAS HENRY TREGONING, of Camborne, aforesaid, Engineer,
do hereby declare the nature of this invention to be as follows:-
Our invention relates to apparatus for pulverizing ore and other substances, and
it comprises the improvements hereinafter described.
According to our said invention we provide a pulverizing chamber, the bottom
or bed of which is grooved or roughened, and in this chamber are placed two or
more discs or rollers which are actuated by any suitable means but preferably by a
vertical shaft carrying a toothed wheel, the teeth of which engage with teeth on
the discs or rollers. Teeth are also formed at intervals around the bed, so that the
teeth of the discs will engage with them and so cause the latter to travel around in
the pulverizing chamber.
The discs or rollers are preferably formed with openings, and hoppers are
arranged in conjunction with the said openings.
In practice we find it advantageous to construct the discs so that weights can be
applied thereto for permitting of varying the crushing power of the said discs
according to the material to be treated. The weights are preferably formed with
handles to enable them to be readily moved.
Dated the 22nd day of April 1890
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Crushing or Pulverizing Ore and
other Substances.
We, GEORGE JOHN SMITH, of Camborne, in the County of Cornwall, Iron-
founder, and THOMAS HENRY TREGONING, of Camborne, aforesaid, 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:—
Our invention relates to apparatus for pulverizing ore and other substances, and
it comprises the improvements hereinbefore described.
According to our said invention we provide a pulverizing chamber, the bottom
or bed of which is grooved or roughened, and in this chamber are placed two or
more discs or rollers which are actuated by any suitable means but preferably by a
vertical shaft carrying a toothed wheel, the teeth of which engage with teeth on
the discs or rollers. Teeth are also formed at intervals around the bed, so that the
teeth of the discs will engage with them and so cause the latter to travel around in
the pulverizing chamber.
To enable our invention to be fully understood we will describe the same with
reference to the accompanying drawings, in which :-
Figure 1 is a plan partly in section of apparatus constructed according to our
invention; and,
Figure 2 is an elevation, partly in section, of the same.
a indicates a pan or vessel forming the pulverizing chamber, which pan is
suitably mounted, for instance, on pillars b, as shewn, and carries a cross-
head c.

page_text: d is the bed or bottom on which the crushing or pulverizing is effected, the Sant
bed being preferably made in sections so that it can be readily renewed, and having
in it grooves e, e, or being, otherwise, suitably roughened.
fis the vertical shaft which is carried in bearings g. in the cross-head c and
his the toothed-
to which motion may be communicated by any suitable means.
wheel which is secured; to the said shaft, and i, are the toothed wheels or discs.
arranged around the wheel so as to engage therewith. j, are the teeth formed
at intervals around the bed and serving to cause the wheels or discs i, i to traverse
around the pan when the wheel his revolved by the shaft f. k is a weight which
is applied to one of the wheels i in order to increase the weight thereof, the said
weight being held in position by means of an extension 1, at the top side of the
m is the
said wheel or disc, entering a corresponding recess in the weight itself.
handle for lifting the said weight. It is to be understood that a similar weight
may be applied to each of the wheels or discs i.
In the operation of the apparatus the material to be treated is partly crushed
between the teeth of the wheels or discs i, i and the wheel h, and is further crushed
by the movement of the said wheels i, i over the grooved-bed d.
"
is an outlet through which the contents of the pan may be discharged, the said
outlet being provided with grooves o, o in which boards or the like may be placed
for regulating the height of liquid in the pan when liquid is used.
It is to be understood that instead of using four wheels or discs i, as shewn any
other convenient mumber may be employed.
Having now particularly described and ascertained the nature of our said inven
tion, and in what manner the same is to be performed, we declare that what we
claim is
1. Apparatus for crushing or pulverizing, ore and other substances, comprising
pulverizing chamber having a grooved or roughened bed or bottom and a series
of toothed wheels or discs which are caused to traverse over the said bed or bottom,
substantially in the manner described.
2. The manufacture and use of the improved apparatus for crushing or pulverizing
ore or other substances herein before described and illustrated in the accompanying
drawings.
1901
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.