Figure 135.-Timberman, cutting wedge, holds it with his thumb exposed to stroke of ax. He sets safety lamp on floor. It might get knocked over. Figure 136.-Failing to hold wedge properly, timberman cuts off the end of his thumb. Figure 137.-Timberman holds wedge with thumb drawn back across top of wedge out of danger of stroke of ax. He knows how to work safely. Timberman: When cutting wedge, hold it with thumb pulled back across top. Figure 138.-Rib at junction point has been permitted to slack and crumble under heavy roof pressure. Figure 139.-Roof at junction points is supported by brick retaining wall. Boss: Make brick retaining walls at junction points. Hold the roof tight. MACHINE MINING. In one year 12 miners were killed in this country while working Figure 140.-Mining machine with cutting chain unguarded. Scraper steps close to cutting chain to screw face jack; he does not wear gloves. Face is not spragged. Figure 141.-Working with unguarded machine, scraper has his leg caught by bit; his foot is pulled into running gear and crushed. |