27-359. Signal code


A. The following signal code shall be used in all mines:


1 bell, stop immediately if in motion.


1 bell, hoist muck, after preliminary signal for hoisting muck.


2 bells, lower.


3 bells, raise.


3 -1 bells, hoist men.


3 -2 bells, lower men.


4 bells, release cage, skip, or bucket to the hoistman.


5 bells, blasting or ready to shoot.


(a) The signal for blasting or ready to shoot is a caution signal and if the
engineer is prepared to accept it he shall acknowledge by raising the bucket or cage a
few feet then lowering it again.


(b) After accepting the signal for blasting or ready to shoot, the engineer shall
be prepared to hoist men away from the blast as soon as any signal is given and shall
accept no other signal in the meantime.


6 bells, air on or off.


7 bells, danger signal, followed by station signal, calls cage to that station, and
such signal takes precedence over all other signals except an accepted blasting signal.


B. The following shall be station signals:


1 -2 bells, collar of shaft.


1 -3 bells, 1st level.


1 -4 bells, 2nd level.


1 -5 bells, 3rd level.


2 -1 bells, 4th level.


2 -2 bells, 5th level.


2 -3 bells, 6th level.


2 -4 bells, 7th level.


2 -5 bells, 8th level.


4 -1 bells, 9th level.


4 -2 bells, 10th level.


4 -3 bells, 11th level.


4 -4 bells, 12th level.


4 -5 bells, 13th level.


5 -1 bells, 14th level.


5 -2 bells, 15th level.


5 -3 bells, 16th level.


5 -4 bells, 17th level.


5 -5 bells, 18th level.


6 -1 bells, 19th level.


2 --1-2 bells, 20th level.


2 --1-3 bells, 21st level.


2 --1-4 bells, 22nd level.


2 --1-5 bells, 23rd level.


2 --2-1 bells, 24th level.


2 --2-2 bells, 25th level.


2 --2-3 bells, 26th level.


2 --2-4 bells, 27th level.


2 --2-5 bells, 28th level.


2 --4-1 bells, 29th level.


2 --4-2 bells, 30th level.


2 --4-3 bells, 31st level.


2 --4-4 bells, 32nd level.


2 --4-5 bells, 33rd level.


2 --5-1 bells, 34th level.


2 --5-2 bells, 35th level.


2 --5-3 bells, 36th level.


2 --5-4 bells, 37th level.


2 --5-5 bells, 38th level.


2 --6-1 bells, 39th level.


4 -1-2 bells, 40th level.


4 -1-3 bells, 41st level.


4 -1-4 bells, 42nd level.


4 -1-5 bells, 43rd level.


4 -2-1 bells, 44th level.


4 -2-2 bells, 45th level.


4 -2-3 bells, 46th level.


4 -2-4 bells, 47th level.


4 -2-5 bells, 48th level.


4 -4-1 bells, 49th level.


4 -4-2 bells, 50th level.


C. The station signal shall be given before the hoisting or lowering signal. If
bells run slowly, move slowly.


D. The engineer shall not move a cage, skip or bucket unless he understands the
signal.


E. One copy of the signal code provided for by this section shall be posted on the
gallows frame on each mine, one at each station and one before the engineer.


F. Special signals may be used if they are easily distinguished by their sound, or
otherwise, from the code provided for by this section, and do not interfere with it in
any manner.