Iron Ore Beneficiation Oscillating the Agitator

Next the operator grasps the timer control lknob 2S and turns the same to the desired washing period and closes the main line switch |66 which conditions the timer motor 23 for opera tion and lights the pilot light i to indicate that the washing machine circuit is energized. Upon turning of the timer control knob the hot Water side of the thermostatically controlled valve 2l is actuated and conducts water at the proper temperature to the rotatable tub 3 through the inlet nozzle ||2. .AS the water level in the tub rises above the opening Se in the centerpost @il the water flows therethrough into the float chamber 96 to raise the float |33 from its inactive position. After the oat is moved vertically a suiiicient distance the top of the float contacts the button lili on the lever |29v and raises the same about its pivot point |22 which in turn tilts the bracket |24 about its pivot |25 to tilt the mercury switches |25 and |33,iron ore beneficiation. When the liquid in the tub reaches a predetermined level the mercury switch |35 is actuated so that the mercury bridges the contacts |34 therein to energize the timer motor 29 and main drive moe tor T6 through circuit and the appropriate cams to start the washing operation by oscillating the agitator IB through the oscillating mechanisrn 'i2 and to advance the cams 28 intermittently on the timeri Shortly thereafter the switches are tiltedstill further by an increase in the water level and the mercuryin the switch |28 moves away from the contacts |32 to deenergize the water supply circuit ld and the flow of water to the receptacle through the valve 2? is interrupted, at which time the proper quantity of water for the washing operation has been introduced into the tub 8.

During the washing operation heavy particles of foreignmatter and dirt are carried by the washing liquid through the openings S in the bottom of the basket 44 wherein the major portion tends to settle in the sediment collecting zone 53 due to the less...