Year: 1893

page_text: Date of Application, 20th Apr., 1893
Complete Specification Left, 6th Nov., 1893-Accepted, 9th Dec., 1893
Figure 4 is a side view seen from the left side of Figure 2.
The machine consists of the two hoppers or feed troughs A, A¹ into which the
goods are placed upon the sieves B and B'; the latter separating the hoppers from
the washing troughs C, C' below. The washing or buddling troughs are of conical
or pyramidal shape at the bottom D and D₁ where they are provided with outlet
cocks E and E¹.
The two buddling troughs are separated from each other by a diaphragm F. In
this diaphragm is arranged a cylinder G for the piston H which is keyed on a rod I.
By means of this rod which passes through stuffing boxes in the end sides of the
troughs, the piston is moved to and fro and since both troughs are full of water the
piston causes alternately a rising or forcing upwards of the water in the one and
it draws or sucks the water down in the other trough from the respective hopper,
thus the water acts upon the ore grains on the sieves B and B in the hoppers A
and A', stirring them up and drawing them down alternately. The surplus of
water goes out at K and the slates and stony material is deposited at L.
So far as described the machine does not differ from the ordinary double acting
jigging machine of Kasalowsky's system.
Now I have improved this machine by devices described in the following:
Instead of a pipe feeding water into the machine continuously, I have arranged
before each trough a receptacle M and M¹ respectively communicating with the
interior by a valve N or N¹ opening inwardly. Now by means of Figures 1 and 2
of the drawing it will be easily understood that at each double stroke of the piston,
the valve N or N¹ will be opened and the piston will draw water from the corre-
sponding receptacle and on its way back the valve will be closed and the water in
the trough will be forced upwards through the sieve by the piston and this water
Price 1

page_text: will raise also the ore grains on the sieve. By falling down again then by their
own specific gravity the ores will be separated.
The sucking action of the piston upon the ores on the sieves in this case however
does not exist, because the piston draws in water from either of the receptacles M
or M' and thus the ore grains only fall down by their own weight, the precipitation
is not accelerated by any exterior force and it is thus that the heavy and rich
goods are separated first and the grains poor in metallic ore settle down slower and
later and a good separation is attained. Instead of the clack valves N or N' a
piston valve may be used as shown in dotted lines at P Figure 2.
Dated this 19th day of April 1893.
AUGUST HEGENER,
Per Karl J. Mayer,
Agent.
-
COMPLETE SPECIFICATION.
Improvements in Jigging Machines.
´I, August Hegener, General Manager of The Maschinenbauanstalt Humboldt
at Kalk near Cologne Rhenish Prussia, Germany, 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 jigging machines known as Kasalowsky's system the piston has a regular
alternate sucking and forcing action upon the water and the material in the
trough.
66
A really good separation of the goods however can only take place when the ore
"
corns or ore "grains to be washed and separated are raised up quickly and
then allowed to precipitate slowly, so that those of a greater specific gravity fall
down to the ground quicker than those grains of minor quality or less metallic
contents.
The sucking action of the piston drawing the ore grains towards the bottom is
disadvantageous and hinders a good separation of the ores. To avoid this drawback
of Kasalowsky's jigging machine is the object of my invention and I have made
the improvement by means of which the suction of the piston will be neutralized
with regard to the ores, so that it has no influence upon the same but instead of
this, is made to draw water into the trough alternately. This at the same time
enables me to have an intermittent water supply instead of a continuous stream and
therefore there is no waste of water with my improved machine.
On the accompanying drawing
Figure 1 shows a longitudinal section of the new machine;
Figure 2 is a cross section ;
Figure 3 is a side view seen from the left side of Figure 2;
Figure 4 is a top view half in section with two small water troughs;
Figure 5 is a top view with a large single water trough.
The machine consists of the two hoppers or feed troughs A A', into which the
goods are placed upon the sieves B and B'; the latter separating the hoppers from
the washing troughs C C¹ below. The washing or jigging troughs are of conical
or pyramidal shape at the bottom D, D' where they are provided with outlet
cocks E, E. The two jigging troughs are separated from each other by a
diaphragm F, in which is arranged a cylinder G for the piston H, which is keyed
on a rod I, by means of this rod which passes through stuffing boxes in the end
sides of the troughs the piston is moved to and fro and since both troughs are full
of water, the piston causes alternately a rising or forcing upwards of the water in
the one and it draws or sucks the water down in the other trough from the
respective hopper, thus the water acts upon the ore grains on the sieves B and B¹
in the hopper A and A', stirring them up and drawing them down alternately.

page_text: The surplus of water goes out at K and the slates and stony material is
deposited at L.
So far as described the machine does not differ from the ordinary double acting
jigging machine of Kasalowsky's system.
Now I have improved this machine by devices described in the following:
Instead of a pipe feeding water into the machine continuously, I have arranged
before each trough a receptacle M and M² respectively, communicating with the
interior by a valve N or N' opening inwardly. Now by means of Figures 1 and 2
of the drawing it will be easily understood that at each double stroke of the piston,
the valve N or N¹ will be opened and the piston will draw water from the
corresponding receptacle and on its way back the valve will be closed and the water
in the trough will be forced upwards through the sieve by the piston and this water
will raise also the ore grains on the sieve. By falling down again then, by their
own specific gravity, the ores will be separated.
The sucking action of the piston upon the ores on the sieves in this case
however does not exist, because the piston draws in water from either of the
receptacles M or M¹ and thus the ore grains only fall down by their own weight,
the precipitation is not accalerated by any exterior force and it is thus, that the
heavy and rich goods are separated first and the grains poor in metallic ore settle
down slower and later, and a good separation is attained.
Instead of the two receptacles M and M¹ a single one of double width M² may
be arranged, as it is shown in Figure 5, and instead of the clack valves N or N' a
piston valve may be used as shown in dotted lines at P Figure 2 & 3.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
In a jigging machine of the system Kasalowsky the arrangement of separate
water receptacles M, M or a single one of double width M² opposite to each
jigging trough C and C¹ and communicating with the latter by valves N or N'
respectively for the admittance of fresh water into the trough in order to neutralize
the sucking action of the piston upon the ore grains on the sieves B and B in the
feed troughs or hoppers A or A', respectively, so as to cause the precipitation and
the separation of the goods merely by the specific gravity and according to the
quality of the ore grains.
Dated this 28th day of October.
AUGUST HEGENER,
Per Karl J. Mayer,
Agent.