Ammunition and explosives – Blasting – Borehole loading
Patent
1984-07-10
1986-06-03
Nelson, Peter A.
Ammunition and explosives
Blasting
Borehole loading
86 20C, 175 45, 299 13, F42B 300
Patent
active
045922829
ABSTRACT:
A charging apparatus includes a charging hose, one end part of which is arranged to be connected to at least one supply of particulate or liquid explosive, and the other end part of which is arranged to be inserted into a drill hole to deliver thereto explosive fed through the charging hose from the forementioned supply; a guide sleeve for guiding the charging hose; a hose-feeder arrangement for displacing the charging hose longitudinally in the guide sleeve; and an aligning and adjusting means for carrying the guide sleeve and placing the aforementioned one end of the sleeve in a position for guiding the other end part of the charging hose into the drill hole. The wall of the guide sleeve is provided with a closeable opening arranged to enable bodies of solid explosive or cartridged explosive to be introduced into the guide sleeve when the charging hose is at least partially withdrawn out of the guide sleeve. The guide sleeve comprises two tubes which can be inserted telescopically one within the other, and which are pushed together in their charging-hose guiding position. The opening is formed in one of the two tubes and can be exposed by partially withdrawing the tubes one from the other.
REFERENCES:
patent: 4040329 (1977-08-01), Ljungberg
patent: 4040355 (1977-08-01), Hopler, Jr.
patent: 4066093 (1978-01-01), Egerstrom
patent: 4102412 (1978-07-01), Sonomura
patent: 4419935 (1983-12-01), Shibukawa
patent: 4466354 (1984-08-01), Jelberyd et al.
patent: 4501199 (1985-02-01), Mashimo et al.
patent: 4508035 (1985-04-01), Mashimo et al.
patent: 4522129 (1985-06-01), Jelberyd
Hansson Ingvar
Niemi Ingemar
Luossavaara-Kiirunavaara Aktiebolag
Nelson Peter A.
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