Code of bell signals for hoisting.

1. At all mines where hoisting apparatus is used in the State of Nevada, the following code of bell signals must be adopted and used: (a) COMMAND SIGNALS Stop........................................................................................................... 1 Bell Lower Conveyance................................................................................... 2 Bells Raise Conveyance.................................................................................... 3 Bells Hoist Persons............................................................................................ 3-1 Bells Lower Persons.......................................................................................... 3-2 Bells Hoist Slowly with Caution....................................................................... 3-3-1 Bells Lower Slowly with Caution...................................................................... 3-3-2 Bells Hoist Muck or Materials Only.................................................................. 1-2-1 Bells Release Conveyance................................................................................. 2-1-2 Bells Repeat....................................................................................................... 2-2-2 Bells The conveyance must not be moved without a command signal. When persons are to be hoisted or lowered, they must enter the conveyance and close the door and then give the signal for the desired level, followed by “Hoist Persons” (3-1 Bells) or “Lower Persons” (3-2 Bells). Additional signals are: For blasting, 3-2-1 Bells, which the hoisting engineer shall acknowledge by raising and lowering the conveyance slightly. For an emergency, 9 Bells, followed by ringing the mine level signal for the level where the emergency exists. (b) MINE LEVEL SIGNALS Shaft Collar..................................................................................................... 1-2 Bells First Level....................................................................................................... 2-1 Bells Second Level................................................................................................... 2-2 Bells Third Level...................................................................................................... 2-3 Bells Fourth Level.................................................................................................... 2-4 Bells Fifth Level....................................................................................................... 2-5 Bells Sixth Level...................................................................................................... 4-1 Bells Seventh Level.................................................................................................. 4-2 Bells Eighth Level.................................................................................................... 4-3 Bells Ninth Level...................................................................................................... 4-4 Bells Tenth Level..................................................................................................... 4-5 Bells 2. One copy of this code of bell signals must be posted on the gallows-frame, one before the engineer and one at each station. Other bell signals which are not in conflict with this code may be used for local conditions, but a table showing such other signals must be posted in connection with this code.