! In one year 89 miners were killed in this country by electricity. Figure 97.-Miner walks along electric haulage road, carrying bar over his shoulder. He knows better, but is careless. Figure 98.-Miner is killed by electric shock. The bar he was carrying on his shoulder had accidently touched the trolley wire. CARRYING TOOLS-Continued. Figure 99.-Miner is carrying bar at his side, and keeps it on wide rib side. SPACING OF TROLLEY GUARD BOARDS. Figure 100.-Guard is too wide and not deep enough; miner passing under may touch trolley wire with his head. The boards are held only by wooden plugs driven in the roof coal, making a weak support. SPACING OF TROLLEY GUARD BOARDS Continued. SAFE PRACTICE. Figure 101.-Boards of guard are spaced properly. Spacing is 4 inches. Boards extend at least 2 inches below wire. Boards are supported by iron braces hung from trolley hanger. Boss: Have wireman make guard boards with right space and depth. Figure 102.-Trolley wire across room neck is not guarded. Track placed too close to rib. Not safe. Figure 103.-Miner entering room strikes his head against trolley wire, and is killed by shock. A guard board should have been placed. Figure 104.-Guard is too short for room neck. Miner rounding rib would pass under unprotected wire. Wireman should make guard longer. 86651-195 TROLLEY-WIRE GUARD Continued. DANGEROUS PRACTICE-Continued. Figure 105.-No guard board is provided for trolley wire at section insulator and feeder switches. Snapper might accidentally touch the trolley wire. Feed wires are too near the switch handles. Figure 106.-Manway station with the trolley wire properly guarded throughout the entire length of the station. Heavy iron I-beams on brick retaining wall takes place of wooden timber sets. |