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a. One of the steel supports on which a cage rests at the pithead during
unloading or loading so that the rail track is always at the proper level.
During this period, the rope is released from the weight of the cage. The
ordinary type of kep gear consists of four steel arms, two for each end of
the cage, carried on shafts that are connected to and operated by levers.
Normally, the cage must be raised from the kep arms before the latter can
be withdrawn to allow the cage to descend the shaft.
See also: Beien kep gear; cage stop. Nelson
b. One of the retractable rests on which the mine cage is supported during
its stop at a shaft landing. Also called catch; chair; keep; landing
chair; stop. Pryor, 3
c. One of the bearing-up stops for supporting a cage or load at the
beginning or end of hoisting in a shaft. CTD
Source:
Dictionary of Mining, Mineral, and Related Terms
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