The chamber is serviced, in the higher section, by means of a 10-ton capacity E.O.T. crane, which runs on run-way beams supported by steel columns from the ... This emergency lighting comes into operation, automatically, in the event of a failure of the normal lighting circuit. ... The skip control desk is fitted with a mimic diagram, which is used to monitor the complete skip loading/ unloading operation .
Title | : | Mine and Quarry Mechanisation |
Author | : | |
Publisher | : | - 1972 |
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