Loading of boreholes with explosives

Details Loading of boreholes with explosives Loading of boreholes with explosives

1975-03-21

1976-10-19

Brown, David H.

Ammunition and explosive-charge making

Loading fireworks and bursting charges

Placing bursting charge in projectile

102 21, 102 23, 175 1, 175 72, F42B 300, F42D 100

Patent

active

039864308

ABSTRACT:
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.

REFERENCES:
patent: 2824483 (1958-02-01), Johansson
patent: 3005373 (1961-10-01), Ranson
patent: 3040615 (1962-06-01), Johansson et al.
patent: 3199399 (1965-08-01), Gardner
patent: 3361023 (1968-01-01), Collins et al.
patent: 3362476 (1968-01-01), Van Poollen
patent: 3407886 (1968-10-01), Bennett
patent: 3417824 (1968-12-01), Van Poollen

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