Loading of boreholes with explosives

Details Loading of boreholes with explosives Loading of boreholes with explosives

F - Mech Eng,Light,Heat,Weapons

42

D

86/5.1

F42D 1/02 (2006.01) F42D 1/08 (2006.01) F42D 1/10 (2006.01)

Patent

CA 1066543

Abstract of the Disclosure Explosive cartridges are loaded into boreholes at a rapid rate by guided descent through a retractable flexible tubing assembly through which a stream of water flows. The cartridges preferably are cut open just before their discharge from the assembly, and their passage through, or discharge from, the assembly is detected outside the borehole. The assembly is retracted incrementally until completion of the-loading. Apparatus comprising a cartridge-guiding assembly through which a stream of water flows, and means associated with the assembly for sensing cartridge passage or discharge. -1-

248320

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