Improvements in Round - Buddles.
Year: 1893

page_text: Date of Application, 6th Nov., 1893
Complete Specification Left, 28th May, 1894 -Accepted, 30th June, 1894
PROVISIONAL SPECIFICATION.
Improvements in Round - Buddles.
I AUGUST HEGENER of Kalk near Cologne, Rhenish Prussia, Germany
General Manager of the Mashinenbauanstalt Humboldt at Kalk do hereby declare
the nature of this invention to be as follows:-
My invention relates to improvements in machinery for washing and classifying
ores and minerals according to their size and specific gravity, that is according to
their richness in metallic substance and also according to their bulkiness.
My improved machine distinguishes itself from other apparatus built for the same
purpose, that in it all the main parts form together one compact self-contained
machine; these parts being easily accessible in case of repairs, but its main
difference from other machines of this class consists 1.) in the different construction
of the feeding and division trough, by means of which the material to be treated
is divided evenly before it comes into the division trough, 2) in the use of a
central feeding tube for the washing water, forming at the same time the pillar on
which the whole machine is supported or suspended; 3) in the use of a special
spray arrangement, making the clearing trough otherwise required in these
machines unnecessary; this spray device securing an absolutely good washing and
classification; 4) in an arrangement which makes it possible that at the same time
goods of different quality may be treated. In the latter case one machine can do
the work of two, and thus space and capital will be saved.
My improved machine consists of a round table slightly conical having a strong
hollow pillar or column in the centre; this pillar is carried in suitable bearings
and it is turned round slowly by suitable gearing apparatus; to it are fixed the
feeding trough and the separating trough for the ores or slick to be separated and
washed, one above the other, and also the spray devices for washing the slick coming
on the table. The hollow pillar serves at the same time as water main for the
washing water, which is led into it at the top. The arms supporting the feed
trough are prolongated radially to the circumference of the table where this is
surrounded by several concentric troughs or channels to take up the goods as they
are washed and taken away by the water according to their size and specific
gravity; the said arms carrying a little below the level of the edge of the table
sectoral coverings boards of different width, by means of which the goods are carried
into their respective trough.
The material to be treated, the ore slick, is stored in one or more receptacles at
the side of the machine and is led into the feed trough by a pipe from the bottom
of the receptacle, which is of pyramidal form. In such cases where two sorts or
qualities of goods are to be treated, the feed trough and separating trough are
made in two compartments each, and two spray arrangements and a double set of
coverings boards are provided for, all arranged in diametrically opposite positions
to the one central column.
Dated this 1st day of November 1803

page_text: Improvements in Round Buddles.
I AUGUST HEGENER of Kalk near Cologne, Rhenish Prussia, Germany,
General Manager of the Maschinenbauanstalt Humboldt at Kalk 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 —
The machine invented by me and serving for washing and classifying ores
according to their size and specific gravity, that is according to their richness in
metallic substance distinguishes itself from other apparatus built for the same
purpose, that in it all the main parts form together one compact self-contained
machine, there parts being easily accessible in case of repairs being required; but 1
its main difference from other machines of this class consists: 1.) in the different
construction of the feeding and division trough, by means of which the material
to be treated is divided evenly, before it comes into the division trough, '2.) by the
use of a central feeding tube for the washing water forming at the same time the
pillar on which the whole machine is supported or suspended. 3.) by the use of a 1
special syray arrangement, making the clearing trough otherwise required in these
machines unnesessary; this spray arrangement securing an absolutely good
washing and classification; 4.) in an arrangement which makes it possible that at
the same time materials of different quality may be treated. This latter condition
may in some cases be desirable and then one machine can do the work of two
seperate machines and thus pace, capital and working expences may be saved, while
the machine is equally well adapted for teating only one sort of materials.
The new machine is shown as single acting and double acting round buddle on
the accompanying drawings in which
Figure 1 is a vertical cross section of the new machine along line I-1 of 2
Figure 2;
Figure 2 is a plan of the machine; without the reservoir;
Figure 3 is a top view of the feed trough;
Figure 4 is a top view of the division trough with feed [pipe;
Figure 5 is a vertical section of the feed trough and division trough mounted,
along line II-II in an enlarged scale;
Figure 6 is a vertical cross section of the double acting machine;
Figure 7 is a plan of the same without the reservoirs ;
Figure 8 shows the arrangement of the feed trough for this machine ;
Figure 9 is the corresponding division trough;
Figure 10 is a section of the feed trough and division trough as mounted together
and in an enlarged scale;
Figure 11 is a plan of the spray tube as used with this machine ;
Figure 12 is a front view of the same;
Figure 13 is a side view;
In the drawings similar parts are indicated by similar letters.
in an enlarged
scale.
In both designs A is the slightly conical fixed bottom or budde table of the
machine upon which the washing and seperation is done; in its center stands in a
step B the vertical shaft C which turns round very slowly and which is held by a
side bearing D on a girder E. The shaft receives its slowly revolving motion by
a worm and worm wheel gearing C. To the shaft are mounted the girders F F
or T T on which the revolving working parts of the machine are fixed. For the
sake of a better fixing of these girders the shaft is made square near its lower end
in both cases.
I will now proceed to explain each manner of carrying out my invention
4

page_text: separatly, beginning with the single acting machine. The girders F in Figure 2
are parallel to each other in one direction and here they carry between themselves
a counterweight G; on the other side they go out radially from the shaft to the
circumference of the table, standing at right angle to each and having their ends
connected together by an arched bar H. To this bar H are suspended the
decanting plates I', 12 I, which project beyond the edges of their corresponding
channels K¹, K, K³, into which the plates conduct the good material, whilst from
the edge of the table a of the machine the waste material is conducted into the
innermost channel K.
By this means I obtain four different sorts of materials: rich ore or concentrates,
two sorts of intermediate products and waste. In the middle the arms F carry the
feed trough L and the division trough M suspended thereon.
The feed trough L, Figures 3 and 5, consists of a ring shaped channel of rectangular
section, into which the water carrying the finely crushed ore pulp (trübe) is fed from a
reservoir P by a pipe O and a cock R; from L it is led into the division trough
by means of the small tubes N placed in part of the bottom of the feed trough.
The division trough consists of a circular channel of triangular section of equal
average diameter as the feed trough; diaphragms O', 0, 0³ divide it into three
compartments. The part 01 02 is below that part of the feed trough L containing
the tubes N and it receives the pulp; quite near the bottom of this part there are
little holes S in the outer side, as seen in Figures 4 and 5, out of which the pulp
escapes evenly distributed on the table surface of the round buddle. The
part 0 0³ is reserved for pure water serving as washing water; it escapes out of
the compartment on to the surface of the buddle through similarly arranged little
holes S at the inner side, (Figures 4 and 5), near the bottom of the trough also
evenly distributed. The part O'O' is free, but it must be so arranged that it
comes to be situated between the part of the girders F F where they stand at right
angle to each other.
The pure water is led into the washing compartment 02 03 by means of a pipe U
and a cock T through the shaft C itself, which for this purpose is made hollow.
This shaft also conducts the water to the spray tube V by means of a pipe W,
which connects the two together, and supports the spray tube. The latter is
arranged in that part of the machine between the two arms F F standing at right
angle to each other. This spray tube is of peculiar construction, so that it can
serve at the same time as washing and as clearing tube. Its construction will be
best seen from the detail Figures 11, 12 and 13. It consists of the tube V* to
which are fixed small branch tubes B¹x, which at their end are pressed flat; over
these branches are fitted spray plates or baffle plates Cx in an inclined position to
the branches, so that the water pouring out from the latter strikes against these
spray plates and is thus spread out in a broad stream, forming a continuous jet
when leaving the plates, because they touch each other and thus the whole surface
of the table is reached by the stream of the spray tube.
The ore after being washed by the streams from the holes S¹ in the division
trough is exposed to the action of the jet of the spray tube and thus it is conducted
on to the decanting plates I, 12, 13; which lead it into the respective channels K',
K³, K', according to the quality, and thence it is led away into clearing basins for
further treatment.
The pulp pouring out of the little holes S at the outer side of the part O', 0,
of the division trough on to the table, which, as will be remembered; is very
slightly conical, covering it wholly because the column C with all its appurtenances
rotates very slowly. The light parts, that is those poor in mineral substance, will
roll over the table quickly, or rather they will be washed away rapidly by the
washing water pouring out of the compartment 02 03 of the division trough and
they will fall into the first channel K; the heavier and smallest parts will flow
down slowly; by the rotation of the apparatus they will be reached gradually by
the spray tube V which will support the washing off so that when the outer end

page_text: of the spray tube, that is the one nearest the circumference will pass over the
material fed on the table and still left by the preceding washing operation, the
residue, which forms the heaviest and best concentrates will also be washed off and
a clean table will always be left behind the pray tube. Now the decanting plates
being smallest where they are furthest away from the spray tube and largest where
this tube is nearest the circumference, it follows that the heaviest material,
which is washed off latest, will be taken over the broadest decanting plates and
carried into the outermost channel K' and so on, the poorest material being taken
up in the first channel without passing over a decanting plate. This material
taking about of the whole circumference, the other quarter being divided into
equal parts for the plates 1', I and I³.
I will now proceed to explain the variation of the machine shown by Figures 6
to 10 for treating two sorts of material at the same time. The general arrange-
ment and the manner of working of this modification is exactly the same, as with
the single acting machine with the exception that the active and passive operating
organs of the same are all arranged double. Thus the surface of the buddle table
is to be thought as being divided diametrically into two parts, (this division need
not to be marked by any special device), and accordingly instead of the channels K³,
K', K' of the former machine their number is increased. Diaphragms K, K', K2, K³
and K' marking the division between the channels K, K¹, K³, K³, K' and K' now
arranged.
In the feed trough L, Figure 8, the division must be a circular one, because the
feeding of both sorts of ores must be a continuous one for each compartment from
the reservoirs Pi and P'; a diaphragme causes this circular division. From the
two concentric troughs 12 and 13 thus formed, the little tubex N' and N' conduct the
pulp down into the respective compartments of the division trough M¹.
This division trough is divided into two main parts by diaphragms Q and Q
placed in diametrically opposite positions, and each of the so obtained halves is
subdivided in three compartments by diaphragms O¹ and O2 and O¹× _and_0**
corresponding to the three compartments of the single acting machine. The com-
partments QO' and Q10 receive the pulp by means of the little tubes N'N' ;
the two compartments 010 and 0* O* being intended for pure water, and Q102
and QO being left free, because opposite to them the spray tubes V V' are fixed
to the pipes W and W₁ between the girders F1, F¹. These girders now project
symetrically to both sides of the center and the counter weight formerly used can
be dispensed with.
The ends of the girders F1 F1 enclosing the sectors in which are placed the spray
tubes, are in a similar manner connected to each other by arches H, H¹ and to them
are suspended the decanting plates i¹, ³,³ and j',, and respectively, reaching
over the corresponding channels K and K as shown in Figure 7. From the
compartments QO¹ and Q'O** pours out the pulp through the holes in the front
side of the division trough; the water pouring out of the holes in the back side of
the compartment 010, and 0¹× and Ox, washes the material and the material is
finally clarified or decanted by means of the water from the spray tubes V, VI,
placed between the corresponding sectors, formed by the girders F F of the
machine, and thus the washing water carries the ore over the edges of the
plates, and into the corresponding channels K' K', and ', in
the example shown leading their material into the common channel K. The
waste being taken away first, direct into the first channel K.
I thus obtain again various sorts of materials: pulp, intermediate, products and
waste. It is evident, that the classification can be reduced or increased and I am
not bound to only 3 or 4 sorts of materials; this depending merely on the number
of divisions made, since in every other respect the machine acts like the single
acting machine first described. The difference consisting merely in the arrange-
ment of two reservoirs P¹ and P' and increasing the number of spray tubes and
collecting chanuels.

page_text: Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
1. In a round buddle for washing and classifying ores a fixed buddle table A; a
hollow vertical shaft C in the center thereof; being set in motion by suitable
gearing C₁ and having girders or arms F F fixed on it near its lower end with
conterweight on one side; a circular feed trough L having outlet tubes N at the
bottom and a division trough M being divided by diaphragms 01, 03, 0³ into
compartments O, O' for the pulp with holes on the outer side, 02, 0³ for pure water
with holes at the inner side near the bottom and O'O' to be kept empty, both.
troughs being supported by the girders F F in combination with a reservoir P and
a pipe O leading water into the water compartment from the hollow shaft and with.
a combined spray tube W V having outlet pipes BX BX and. baffle plates or spray
plates C* C* fixed thereon, the whole as set forth and for the purpose specified.
2. In a round buddle for washing and classifying ores a fixed buddle table A, a
hollow vertical shaft C in the center thereof, arms F F fixed to it, a circular feed
trough L, a division trough M, a water pipe U and a combined spray tube W, V
in combination with decanting plates I, I, I' reaching over the edges of
channels K', K, K³, the whole as set forth and for the purpose specified.
3. In a round buddle for washing and classifying ores a fixed buddling table A,.
a hollow vertical shaft C in the center of the same being set in motion by suitable
gearing C¹ and having a pair of girders or arms F F fixed thereon projecting at.
both sides from the center so as to divide the table in 4 sector like parts balancing
each other, a circular feed trough L', being divided by a diaphragm into two
concentrical compartments, having each outlet tubes N', N' respectively fitted
to their bottom, a division trough M¹ being divided by two main diaphragms Q.
and Qinto two compartments, each of which is again subdivided by diaphragms O¹³
and OxOx into three compartments Q O¹ and Q'O** with outlet holes at the
outer side for the ore, compartments O, O' and Ox, O* with outlet holes at the
inner side for the water and compartments O'Q' and O¹× Q being left empty, in
combination with spray tubes V* V* having outlet pipes B, Bix with flat ends
and baffle plates C*, C* fixed thereon, the whole as set forth and for the purpose
specified.
4. In a round buddle for washing and classifying minerals on a fixed buddling
table a hollow vertical shaft C, a double set of arms F¹ F' fixed thereon, carrying
a circular feed trough L' and a division trough M₁ and also a pair of spray
tubes V V in combination with reservoirs Pip with decanting plates,,
and ',, respectively, leading the separated ores into the channels K¹ K' the
whole as set forth and for the purpose specified.
Dated this 26th of May 1894
KARL J. MAYER,
For August Hegener.