Ends Of Lead Wire Projecting Into Charge

Figure B3.—Electric cap.

I HSU LA T" ED WIRES

or high explosive contained in a waterproofed textile covering. It Is set off by a cap taped or tied to it. Instead of burning lifc* a time fuze, it explodes like other high explosives and will Set off other explosives properly connected to it. It is used mainly to set oil a number of charges at one time or to fire a charge in a deep hole. Its action is Instantaneous; therefore, whether the detonating cord is fired by an electric or nonelectric cap. the firer should take the same precautions as if the cap were placed directly in the charge.

g. Crimper.—The crimper (fig. 85) is used to crimp the open end of the nonelectric cap around the time fuze and to cut time fuze. One leg of the handle is pointed for use in making ^ioles for caps in dynamite, and the other leg has a screw-iriver end.

h. To^Zj for boring holes.—Holes in earth, concrete, rock, or other *iaterial in which explosive charges may be placed are made vith many kinds of hand and power tools. Miners' tools are shown in figures 86, 87, and B8. Tools other than those shown ht»»e Include the air compressor, with its rock and pavement-broking attachments tsee figs. 30 and 31). and two types of eb-th auger, one of which drills holes 6

82 49

FiCTTRE 84.—Fuze lighter.

POOR MAN0S JAMBS BOND Vol. 4 63

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