Improvements in or relating to Apparatus for Washing or Separating Ores and the like.
Year: 1889

page_text: Date of Application, 2nd Jan., 1889
Complete Specification Left, 1st Oct., 1889-Accepted, 2nd Jan., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Apparatus for Washing or
Separating Ores and the like.
A communication from abroad by OSCAR BILHARZ, of Freiberg, Saxony, in the
Empire of Germany, Commissioner of Mines.
1, GEORGE CECIL DYMOND, M. Inst. M.E. of the Agency for Foreign Patent
Solicitors 6, Lord Street, Liverpool and 6, Bank Street Manchester, both in the
County of Lancaster & 323, High Holborn in the County of Middlesex, Patent.
Agent, do hereby declare the nature of this invention to be as follows :-
:-
In the ordinary annular ore sieving or separating machines there is one disadvantage
which consists in the difficulty, or rather loss of time, incurred in the operation of
frequently raising and lowering the circular sieve plate upon which the layer of
pounded ore is placed.
In the accompanying drawings,
Figure 1 is a sectional elevation of a machine of this kind with the improvement.
Figure 2 a plan of the same.
Figure 3 shows on a larger scale the apparatus hitherto used for cleaning the
sieve or for regulating the height or depth of the granulated layer of ore.
This arrangement consists in inserting in the annular walls d d' above and beneath
the sieve plate, annular or other blocks a be of various heights, by the interchanging
of which the height of the sieve plate S can be altered as required.
In the new arrangement, forming the object of this application and shown in
Figures 1 and 2, web pieces A are placed underneath the sieve frame at various
places on the sieve box and below corrosponding cross pieces B on the sieve box, to
which they are fastened by screws e and nuts.
The web pieces A slant towards the inside of the sieve box, Figure 2, so as to
present as small a dead surface as possible to the water, which rises in the direction
marked by the arrows in Figure 1.
By tightening or slackening the thumb screws the entire sieve plate can, not only
be accurately adjusted to the required level, but it can be easily and completely
raised, in order to clean or regulate the granulated layer of ore, either by diminishing
or increasing its depth.
Dated this 1st day of January 1889.
WM P. THOMPSON & Co.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Apparatus for Washing or
Separating Ores and the like.
A communication from abroad by OSCAR BILHARZ, of Freiberg, Saxony, in the
Empire of Germany, Commissioner of Mines.
1, GEORGE CECIL DYMOND, M. Inst. M.E., of the Agency for Foreign Patent
Solicitors, 6, Lord Street, Liverpool and 6, Bank Street, Manchester, both in the
County of Lancaster and 323, High Holborn in the County of Middlesex, Patent
Agent, 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 :-
In the ordinary annular ore sieving or separating machines there is one disadvantage
which consists in the difficulty, or rather, loss of time, incurred in the operation of

page_text: frequently raising and lowering the circular jigger or jigging sieve upon which the
layer of pounded or crushed ore is placed.
In the drawings accompanying the provisional specification
:-
Figure 1 is a sectional elevation of a machine of this kind with the improvement.
Figure 2, a plan of the same.
Figure 3 shows, on a larger scale, the apparatus hitherto used for cleaning the
jigging sieve or for regulating the height or depth of the granulated layer of ore.
The arrangement shown in Figure consists in inserting in the annular walls dd,
above and beneath the jigger, annular or other blocks abc of various heights, by
the interchanging of which the height of the jigging sieve S can be altered as
.required.
In the new arrangement, forming the object of this application and shown in
Figures 1 and 2, web pieces A are placed underneath the frame of the jigging sieve
at various places on the sieve box and below corresponding cross pieces B on the
sieve box, to which they are fastened by screws e and nuts.
The web pieces A slant towards the inside of the sieve box, Figure 2, so as to
present as small a dead surface as possible to the water, which rises in the direction
marked by the arrows in Figure 1.
By tightening or slackening the thumb screws f, the entire jigger sieve can, not
only be accuratively adjusted to the required height, but it can be easily and com-
pletely raised, in order to clean or regulate the granulated layer of ore, either by
diminishing or increasing its tepth.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
In circular apparatus for washing, sieving or separating ores, the application of web
pieces A, and cross pieces B, connected together by screws, whereby the jigger
:sieve may be raised or lowered at any moment without interrupting the course of
the machine, substantially as described.
Dated this 30th day of September 1889.
WM. P. THOMPSON & Co.,
Agents for the Applicant.