Improved Hydraulic Apparatus for Effecting the Separation, by Deposit, of Ores or other Materials from their Gangue or other Foreign Matter.
Year: 1892

page_text: Date of Application, 23rd June, 1892
Complete Specification Left, 16th Mar., 1893-Accepted, 6th May, 1893
2
PROVISIONAL SPECIFICATION.
Improved Hydraulic Apparatus for Effecting the Separation, by
Deposit, of Ores or other Materials from their Gangue or
other Foreign Matter.
1, FRITZ BAUM of 3 Fabrikstrasse, Herne, Prussia, Engineer, do hereby
declare the nature of this invention to be as follows:-
This invention relates to hydraulic depositing apparatus in which granular
material such as ore or coal to be separated from gangue or foreign matter, is
placed upon a sieve and is agitated thereon by an alternate up and down motion
produced by alternately forcing water upward through the sieve by air, gas, or
steam pressure, and then allowing the water to pass down through the sieve again
by withdrawing the gaseous pressure. By this means the specifically heavy
particles become deposited on the sieve while the lighter gangue or sludge is
partially floated off from the top and partially washed down through the sieve.
According to the present invention the alternate admission of the air or other
pressure to, and its escape from the apparatus is effected automatically by means
of a valve actuated by an eccentric or equivalent appliance, whereby firstly the
supply pipe for the air or other gaseous pressure is put in communication with the
interior apparatus, and secondly this communication is cut off and the interior of
the apparatus is put in communication with the atmosphere, so as to allow the air
pressure to escape.
The apparatus is for this purpose, by preference, constructed as follows. A
trough-shaped vessel is divided by a vertical partition, extending down a certain
In the
distance, into two compartments communicating with each other at bottom.
one compartment is fixed the horizontal sieve, on to which is charged the material
to be sorted, and from above which an overflow passage leads to a passage at the
bottom of the vessel containing a transporting worm, for conveying away the
gangue that is floated off from the sieve. At the top of the other compartment,
which is closed air tight, is fixed firstly a supply pipe for the water with which the
vessel is partly filled, and secondly a cylindrical valve in a chamber communicating.
at one point with the supply pipe for air under pressure, and at another point with
the outer atmosphere, so that according as the valve is moved into the one position
by an eccentric, it opens the communication between the air pressure supply and
the said compartiment, thereby causing the water to be forced downward in the
same and upward through the sieve in the other compartment, while when the
valve is moved into its other position, it closes the said communication and opens
that leading to the atmosphere, so that as the air pressure now escapes from the
first compartiment, the water will flow down through the sieve again.
Dated this 23rd day of June 1892.
MKA
ABEL & INTIAI,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Hydraulic Apparatus for Effecting the Separation, by
Deposit, of Ores or other Materials from their Gangue or
other Foreign Matter.
I, FRITZ BAUM, of 3 Fabrikstrasse, Herne, Prussia, 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:-
This invention relates to hydraulic depositing apparatus or washing jiggers in

page_text: which granular material such as ore or coal to be separated from gangue or foreig
matter, is placed upon a sieve and is agitated thercon by an alternate up and dow
motion produced by alternately forcing water upward through the sieve by air, gas
or steam pressure, and then allowing the water to pass down through th; sieve
again by withdrawing the gaseous pressure. By this means the specifically heavy
particles become deposited on the sieve while the lighter or smaller gange
sludge is partially floated off from the top and partially washed down through
the sieve.
According to the present invention, the alternate admission of the air or other
pressure to, and its escape from the apparatus is effected automatically by means
of a valve or admission device actuated by an excentric or equivalent appliance,
whereby, firstly, the supply pipe for the air or other gaseous pressure is put in
communication with the interior of the apparatus, and secondly this communication
is cut off and the interior of the apparatus is put in communication with the
atmosphere, so as to allow the air pressure to escape.
The said admission device is applied between the pipe supplying the fluid
pressure, and the washing jigger. On the opening of the valve the fluid pressure
passes from the pipe into the washing jigger, and in the first instance it loses its
pressure to a considerable extent, which is however soon regained by the flow of
fluid from the reservoir thereof, so that it drives, with increasing force and speed,
the water of the jigger through the sieve thereof.
On the closing of the valve while the interior of the jigger is at the same time
put in communication with the outer air, a gradual decrease of pressure will take
place in the jigger and the water will flow with increasing velocity back from the
sieve into the Jigger.
a
This gradual increase and decrease of pressure of the operating fluid results in
uniform motion of the water in the jigger, and in a regular deposit of the materia!
operated upon upon the sieve. These actions can be modified by a more or less
rapid or complete opening and closing of the valve.
On the accompanying drawing is shewn, by way of example, a vertical section
of a washing jigger with the said invention applied thereto. The chamber A of
the jigger is divided by the partitions B B in the known manner into an inner
compartment for the screened materials and an outer compartment for the separated
sludge. C is the jigger sieve, D the overflow bar, E El are the regulating slides
and F the worm for conveying away the sludge falling down behind the left hand
partition, and the finer deposits passing down between the two partitions B B.
The fluid pressure enters through a casing G at the lowest position of the closing
device H, into the jigger, and drives the water forward. In the raised position of
the closing device H the supply of fluid pressure is cut off, and the chamber A is
put in communication with the outer air by means of the openings J of the casing G,
so that the fluid pressure can escape.
The water is supplied at K.
The movement of the closing device is effected in the usual manner by an
excentric or crank.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A washing jigger or hydraulic apparatus for separating, by deposit, ores and
other materials, worked by fluid pressure, in which there is interposed between the
conduit pipe supplying the fluid pressure and the chamber of the apparatus, a
closing device actuated so as to alternately admit and cut off the supply of fluid
pressure to the said chamber, substantially as described.
Dated this 16th day of March 1893.
ABEL & IMRAY,
Agents for the Applicant.