Anchor bolt drilling and setting device

Details Anchor bolt drilling and setting device Anchor bolt drilling and setting device

1993-07-02

1995-02-28

Britts, Ramon S.

Boring or penetrating the earth

With means to simultaneously feed and rotate tool from a...

With feed anchor in earth wall being bored

175173, E21C 110

Patent

active

053928695

ABSTRACT:
For inserting anchor bolts in the region of the tunnel side wall up to near to the face, in addition to anchor bolt drilling and setting devices for the roof in the front region of the road-driving machine additional anchor bolt and setting devices are mounted displaceably guided in a vertical direction. The additional anchor bolt drilling and setting devices are swivellable around an axis which is parallel to the running surface plane of the drive mechanism of the road-driving machine.

REFERENCES:
patent: 1812719 (1931-06-01), Schroder
patent: 4022026 (1977-05-01), Childress
patent: 4079792 (1978-03-01), Paul et al.
patent: 4108253 (1978-08-01), Woodford, II
patent: 4190385 (1980-02-01), Childress
patent: 4252475 (1981-02-01), Cobb et al.
patent: 4297057 (1981-10-01), O'Neil

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