Year: 1891

page_text: Figure 5 is a broken away section on line 5—5, Fig. 4.
Figure 6 is an end elevation, the expansion chamber being broken away.
Figures 7 and 8 are broken away sectional details of construction.
Figure 9 is a broken away section of the expansion chamber surmounting the
machine proper.
Figure 10 is a broken away section of the expansion chamber, on line 10-10,
Fig. 9, embodying a modification.
Figure 11 is a broken away part elevation and part section, showing structural
details, and
Figure 12 is a broken away sectional detail and plan of the shaking screen.
The object of the invention is to subject mineral substances containing native
metals or metallic compounds, to a disintegrating operation of such a character as
to pulverize or reduce to dust the non-metallic constituents or gangue only, leaving
the native metal or metallic compounds in their natural form, practically the same
as when found in a free state where the process of disintegration of the gangue has
been effected by atmospheric action. This result is accomplished in the manner
and by the means hereinafter set forth.
Referring to the drawings, A represents the base-structure or casing inclosing
the disintegrating chamber. This base is constructed of metal plates bolted
together, as illustrated, and is surmounted by a superstructure forming the expansion
chamber A¹. The companion throwing-wheels B B¹, are mounted on the
shafts B B, which are provided with suitable journal bearings .secured to the
base structure. These throwing-wheels are provided with a number of projections
or arins «, to the shoulder ends of which are rigidly bolted the plates a¹, as shown
in Figs. 2 and 3. These wheels are set in the relative position shown in Fig. 3
and revolve in opposite directions, as indicated by the arrows.
The space B between the wheels is where the two conflicting bodies or streams
of ore and air come together in the breaking up process. The feed hoppers C C¹
are located above the throwing-wheels and are secured to the respective sides of
the casing, as shown in Figs. 1, 2 and 3. Inside of and below the mouth of the
feed hoppers are located the feed-wheels C² C³, (Fig. 2) mounted on the shafts a² a³,
which are provided with suitable journal bearings. The feed wheels comprise a
number of radial blades a*, forming pockets a between each pair of blades. These
Pris 1171

page_text: blades extend entirely across the feed-opening, the pockets receiving the larger
part of the ore or other substance fed in.
The throat passage à, between the 'feed wheels and 'the front side of the hoppers,
prevents clogging or interference with the movement of the feed-wheels and also
provides for the admission of the required amount of air.
The shafts a a³, on which the 'feed wheels are mounted, extend across and project
a little beyond the sides of the casing, as shown in Fig. 1. The companion gear
wheels a' a are rigidly mounted on such projecting ends, as shown in Fig. 6. The
shaft b extends across one end of the machine (Fig. 6) and has the pinions b¹ 6³
mounted on the respective ends thereof, which pinions engage with the gear
wheels a a³.
The counter-shaft 6³, (Fig. 6) is journaled in the brackets *, and has the crank
wheel mounted on one end. To this crank wheel is secured the lower end of
the connecting rod 6, the upper end 'being adjustably connected to the horizontal
rod by the hand screw 68. The inner end of the rod b' is secured in a socket 6º,
having an integral collar part 10 (Fig. 7) mounted on the shaft b. The ratchet-
wheeld is also mounted on the shaft, (Figs. 1, 3 and 6) and has the feed-dog (
engaging therewith. One end of this dog is pivoted in the clip d³ on the socket-
piece b. The counter shaft 68 carries the band wheel and receives motion from
the motive power by means of the belt d*.
By this arrangement an intermittent rotary motion is transmitted to the feed
wheels.
As the rod 67 is raised and lowered through the medium of the crank-wheel and
connecting rod, the feed dog engages the ratchet wheel tooth by tooth and imparts
n corresponding movement to the feed wheels and feeds the ore in gradually.
The movement of the feed wheels may be varied by changing the position of the
connecting rod on the rocking rod b.
The shoes are bolted to the inside of the casing below the feed wheels (Fig. 2)
and form a shelf to check too free a flow; a portion of the ore being dropped in
with each movement of the feed wheel.
The partitions D D' divide the disintegrating chamber into three compartments,
the disk throwing wheels being located in the middle compartment D³, (whose
upper portion serves as an up-take for the pulverized material) and the com-
partments D³ D' at each side, as shown in Fig. 2.
The dividing boards do d' are of an inverted V-shape as indicated by the dotted
lines in Fig. 3, and are located in the compartments D³ D' at each side, as shown
in Fig. 2.
As shown in Fig. 1, the lower part of the feed hopper has two branches de d
with the inclined dividing surface leading to each side. This feature is for the
purpose of dividing the body of ore and have it pass into the disintegrating chamber
at two different points, as indicated by the dotted lines at ee (Fig. 3) which shows
the relative position of the openings communicating with the bifurcated feed
hopper.
By this arrangement, the ore, where it strikes the surface of the inclined dividing
boards de d, is distributed equally to the throwing-wheels in the disintegrating
chamber,
It must be understood that the ore drops down into the bottom of the com-
partments D³ D', which are formed by the drums e', e', inclosing the main shaft
and which open into the middle chamber D', the full size of the circle, as shown
at e (Fig. 3); a part of one of the disk wheels being broken away to show such
opening. The ore is thus discharged into the disintegrating chamber below the
wheel shafts.
The inclined shelves d and d", in the drum, form a slide for the ores to reach
the required point. Thus it will be observed that the ore does not drop onto the
top of the throwing-wheels as is the case in pulverizing machines in which the
ordinary fan wheels are used.
The peculiar features attending the construction and operation of the disk

page_text: throwing wheels will now be described. The backs of the arms a are rounded or
curved in the direction in which the wheels revolve; the ends of the arms
terminating in a straight shoulder or face, to which the plates a' are bolted. It
will be observed that the plates or blades a¹ have their working faces or surfaces of
impact in planes parallel to the axis of the wheel. Now, the ore entering below the
wheel shaft, the angle at which the plates are set brings the face of the same, when
in their lowermost position, square against and throws the ore in a straight line
towards the companion wheel. The wheels will be made to revolve at a high speed
so that the two continuous streams of ore thrown by the companion wheels will
come together in the central space with great force; the impact breaking the ore
and releasing the metal from its inclosing substances and rendering the after process
of separation much easier and cleaner than if the ore has been subjected to the
usual grinding or crushing process.
The cut offs E E¹ are bolted to the casing above the disk wheels (Figs. 2 and 3)
and extend across the width of the space between the partitions inclosing the
disintegrating chamber proper. is a strengthening rib formed in the center of
the cut offs. The lower part of the cut offs are curved; and the plates on the arms
of the wheels run very closely therėto for the purpose of preventing any particles
of ore from being carried around or leaving sufficient space between the two at this
point for the passage of a volume of air; the current of air and ore being
substantially cut off or broken at this point.
The position of the face plates on the arms of the disk wheels, brings the inner
ends in line with the toes of the cut offs, while the outer ends are yet some distance
back, which gives the plates a chance to free or clear themselves before they have
wholly passed the point of cut off.
The throwing wheels are set at one side of the center with reference to the
surrounding casing, so that the space between the periphery of the wheels
gradually and uniformly enlarges from the point of cut off, forming what might be
termed a spiral duct so that the volume of air will not be contracted, but, on the
contrary, will be expanded so as to sweep clear and prevent the accumulation of
matter at any point in the disintegrating chamber. The expanding duct will also
prevent clogging should particles of the ore by any chance pass the cut offs and
enter the passage beyond.
At the junction of the inclosing casing with the expansion chamber, is located
the stationary cylindrical body F, which may be either tubular or solid; tubular
being preferred, as shown, on account of lightness. This body presents a rounded
or spherical surface to the matter carried upwardly by the air from the disinte-
grating chamber after the impact, and serves to check too rapid a flow, and divides
the ore-matter into two volumes and carries it up through the narrow passages ff
(see Fig. 2) on the respective sides of the cylinder F. It will be noted that the
passages or openings ff are between the cylinder F and the inside upper ends of
the partitions D³ D.
The expansion chamber A³ (Fig. 9) gradually enlarges or widens clear to the
upper end, the top being closed by the roof F slanting in the opposite direction
with reference to the inclined sides of the expansion chamber.
Centrally inside of the expansion chamber, with an open space clear around, is
placed the hopper F³, supported by two cross timbers f¹, extending clear across the
mouth of the hopper and the two shorter timbers ƒª running at right angles to the
companion timbers, as shown in Figs. 9 and 10.
The spout is connected to and runs from the bottom of the hopper F2 out
through the side of the expansion chamber and into the receiving chamber G,
shown in Fig. 11. In this chamber and below the open end of the spout ƒª¸ is
located the "jigger" or shaking screen G¹, (see also Fig. 12) which may have the
required motion transmitted by any suitable mechanism.
In operation: The ore substance, broken up by impact in the space between the
throwing-wheels, is carried upwardly by the current of air and divided into two
volumes by contact with the spherical surface of the cylinder or body F, and

page_text: passing into the expansion chamber the volume expands with the increasing area>
the lifting power of the air growing proportionately less, so that such particles of
ore as lose their specific gravity drop out of the ascending column and descend
along the sloping sides of the expansion chamber down into the compartments D³ D*
and return to the disintegrating chamber and are again subjected to the breaking
up process and so on continuously until all the matter has been reduced to the
proper fineness.
Such particles of the ore substances as reach the dead air space above the hopper
drop into the same and pass to the screening surface G¹, where the finer particles
pass through the meshes and out through the opening g, Fig. 11. The particles
that are too large to go through the meshes are spouted into the compartments D'D',
as at g', (Figs. 11 and 12) and returned to, and again subjected to the action of the
throwing wheels.
The dust escapes from the expansion chamber through the pipe extension G³,
and may be conducted into the receiving or concentrating chambers or allowed to
mingle with the atmosphere as circumstances may determine.
The final process of separating the metal from the refuse will be completed by
other means.
Figure 10 represents a modification with reference to the hopper F³ in the
expansion chamber. In this modification two spouts g³ 92 are used, and the matter
received into the hopper is spouted back directly into the compartments D³ D',
leading to the disintegrating chamber, instead of being run onto a vibrating
screening surface. This arrangement is more especially intended to be used in the
reduction of mineral paint ores, when all the matter is to be reduced to dust.
Figures 4 and 5 illustrate features of construction permitting convenient insertion
and removal of the disk wheel shafts.
The triangular corner piece h is a separate part of the casing, and has the
diagonal bar ' riveted to the outer edge. This bar covers the line of separation
and is secured to the meeting edges of the casing by the bolts 2. By removing
these bolts the corner piece may be taken out.
The pulleys are mounted on the shafts of the throwing wheels, which have
a belted connection with the motive power.
K represents the different parts of a belt-tightener.
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:
1. In an ore separator, the combination with a disintegrating chamber having an
uptake, of companion throwing wheels having their shafts transverse to the
chamber and mechanism for revolving both of said throwing wheels toward cach
other and upwardly toward the uptake; substantially as described.
2. In an ore separator, the combination with companion throwing wheels, of a
disintegrating chamber, having a common outtake, said throwing wheels having
their shafts transverse to the chamber and mechanism for revolving said wheels
toward each other and toward the outtake on the side opposite the outtake;
substantially as described.
3. In an ore separator, the combination with companion throwing wheels, of a
disintegrating chamber, having a common outtake, said throwing wheels having
their shafts transverse to the chamber, mechanism for revolving said wheels toward
each other and toward the outtake on the side opposite the outtake, and feeding
devices discharging on said opposite side, in front of the wheel blades; substantially
as described.
4. Apparatus for the disintegration of mineral substances, comprising throwing
wheels separated by an intervening free space, said wheels being provided with
blades whose working faces are in planes bisecting the wheel outside of its axis,
and mechanism for driving said wheels in opposite directions, and upwardly with
respect to the intervening free space; substantially as described.

page_text: 5. In an ore separator, the combination with a disintegrating chamber, of
companion throwing wheels each having blades whose working surfaces are in
planes bisecting the wheel outside of its axis and feed shelves or inclines discharging
below said axes; substantially as described.
6. In an ore separator the combination with a disintegrating chamber, of
companion throwing wheels set eccentrically with reference to the enclosing casing,
said throwing wheels being provided with blades whose working faces are in planes
bisecting the wheel outside of its axis; substantially as described.
7. In an ore separator, the combination with a disintegrating chamber having an
uptake for the exit of the pulverizing material, of companion throwing wheels
located below said uptake and at opposite sides thereof, said throwing wheels being
provided with blades whose working faces are in planes bisecting the wheel outside
of its axis, and cut offs located close to the path of movement of the blades and
above the wheels; substantially as described.
8. In an ore separator, the combination with the disintegrating chamber, of the
companion throwing wheels, and the cut offs, said wheels being set eccentrically
with reference to the inclosing casing; substantially as set forth.
9. In an ore separator, the combination with the disintegrating chamber, divided
into three compartments, of the throwing wheels located in the middle compart-
ment or disintegrating chamber proper, the dividing boards, placed in the side
compartments, and the inclined shelves in the lower drum-ends of the side
compartments, said inclined shelves extending below the shafts of the throwing
wheels whereby the ore is distributed to the companion wheels at a point below
the axial shafts, substantially as set forth.
10. In an ore separator, the combination with the inclosing casing, of the feed
hoppers, branching at their lower ends and secured to opposite sides of the casing
and communicating with openings therethrough, the feed wheels, provided with a
number of pockets and set in the throat of the hoppers, the shoes, bolted to the
inside of the hoppers, below and on the opposite side from the feel wheels, and the
means substantially as described for imparting an intermittent rotary motion to said
feed wheels, substantially as set forth.
11. In an ore separator, the combination with the expansion chamber, of a
hopper suspended centrally therein, and a vibrating screen, located in a chamber at
one side of the expansion chamber, and a spout leading from said hopper to said
screen, whereby the finer matter is separated from the coarser and the latter
returned to the disintegrating chamber, substantially as set forth.
Dated this 16th day of July 1891.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.