FIELD: explosive technics in mining and building industries. SUBSTANCE: block contains cylindrical casing 1 in the form of barrel with perforated bottom 2. Upper part of casing 1 is constructed in the form of slot- separated blades 3. Blades are provided with radial protruding clamps 4 and are inserted into stop ring 5 in the form of barrel with through variable-width slot in bottom and flange 7 on the side opposite to bottom. Casing has flange 6 disposed at a distance from its upper part equal to blade length. Cross-section of blades 3 decreases with height. EFFECT: improved design. 3 dwg
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Authors
Dates
1997-08-10—Published
1995-04-07—Filed