The accompanying engravings represent an improved ore crusher, which
is said to be very effective and economical in the use of power.
[Illustration: Fig. 1.--BROWN'S ORE CRUSHER.]
[Illustration: Fig. 2.--HORIZONTAL SECTION.]
A short vertical cast iron cylinder, A, having in one side a discharge
opening, H, contains all of the movable parts.
The upper portion of the cylinder is lined with chilled iron plates,
L, and an inclined chute, X, leads to the discharge opening, H.
A rigid shaft, B, carries the circular crusher, C, and moves in a ball
and socket joint at the upper end, and extends eccentrically through
the boss of a bevel wheel, G, at its lower end, and rests on a step
supported by a lever that may be adjusted by the screw, R. The wheel,
G, is driven by the pinion, P, on whose shaft there are a pulley and a
fly-wheel.
The double gyratory motion of the crusher, C, causes it to approach
all portions of the lining, L, crushing whatever lies between.
It is said that this machine is capable of crushing 10 tons of the
hardest ore per hour. Its weight is 6,500 lbs.--_Musée de
l'Industrie._
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