. Bulletin . del oator in one direction and extend it in the other, thusmaking openings alongside of the fuse. a detonator is crimped on a fuse in this manner and subme: _under water for 30 minutes the rulm he fuse in tfa ome damp, and that on lighting - fuse, even if it burns I _:.. the spit produced by - - ally of insufficient intensity to cause an explosion of the ful-minating charge, though in some iiisl an explosion of alow order occurs. If only a little wati rs the detonat burning fuse may 1 s ifficient t rulminati charge to explode with a sharp re. i to com ing useful work. I
. Bulletin . del oator in one direction and extend it in the other, thusmaking openings alongside of the fuse. a detonator is crimped on a fuse in this manner and subme: _under water for 30 minutes the rulm he fuse in tfa ome damp, and that on lighting - fuse, even if it burns I _:.. the spit produced by - - ally of insufficient intensity to cause an explosion of the ful-minating charge, though in some iiisl an explosion of alow order occurs. If only a little wati rs the detonat burning fuse may 1 s ifficient t rulminati charge to explode with a sharp re. i to com ing useful work. Ins lade by the burea 70to80pei te compressed ._ . was i r part of the copper shell. The spit of the burning fuse had seemingly caused a part of the fulminating com- :. to explode ith - ifficient force to destroy the top part of For a fuller description see Brunton. D. W., and Darts, J. A., Safety and efficiency inmine tunneling: BnlL 57, Bureau of Mines, 1914, pp. 131-146. BUREAU BULLETIN 80 PLATE XIV. A. ORDINARY CRIMPER.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
