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a switch that automatically cuts off current to an electric motor when an object moved by it, as an elevator, has passed a given point.
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for
The following diagram shows a mechanical
wired to a pair of indicator lights.
The hoist upper
can be used as a stop only when the hoist is equipped with a backup
Raise empty hook at creep until
trips and stop hoisting motion.
For example, it is not the intent to manually operate and test each
The power to the machine is on and the only thing preventing that cylinder from turning is a
should not be used as an operating control, unless the hoist is equipped with a backup
Removal of either or both hands before the activation of the
will stop or reverse the closing cycle.
As a result of the collision, the load
box for the whip line was torn loose from the port side crane boom.
shaft shall be stainless steel, and cams shall be secured thereto with set screws.
In addition, mines should inspect the hoist
to make sure it is properly adjusted and working.
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