Rock bolter

Hydraulic and earth engineering – Miscellaneous

Patent

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Details

81 55, 227119, 269 34, 269234, E21D 2000

Patent

active

055562353

ABSTRACT:
The present invention relates to a device for setting rock bolts. The device employs a common element for affixing the end of a feed shell with respect to a rock surface, stabilizing the feed shell and providing a common centralizer for centering all subsequent bolt setting operations. The device also has a bolt magazine which stores, advances and positions the bolts in line with a bolt driver.

REFERENCES:
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patent: 3218893 (1965-11-01), Madison et al.
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patent: 4215953 (1980-08-01), Perraud
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patent: 4351625 (1982-09-01), Selestam et al.
patent: 4398850 (1983-08-01), Talvensaari
patent: 4420277 (1983-12-01), Hibbard et al.
patent: 4438984 (1984-03-01), Leppala
patent: 4473325 (1984-09-01), Beney et al.
patent: 4497378 (1985-02-01), Beney et al.
patent: 4706948 (1987-11-01), Kroecher
patent: 4972911 (1990-11-01), Rajakallio
patent: 5114279 (1992-05-01), Bjerngren et al.
Eimco-Secoma TUI 2 HD Roof Bolting Turret brochure (1983).

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