Bolt holder on a drilling and bolting turret

Details Bolt holder on a drilling and bolting turret Bolt holder on a drilling and bolting turret

1983-05-06

1984-09-25

Taylor, Dennis L.

Hydraulic and earth engineering

Miscellaneous

173 22, 173 43, 405259, E21D 1100

Patent

active

044733259

ABSTRACT:
A feed device on a drilling and bolting turret retains anchoring bolts, before they are driven into a bore in a subterranean structure. A centering member is supported by the front part of the turret and comprises a cylindrical housing into which a circular support plate of a bolt is introduced. The shank of the bolt is introduced laterally through an aperture in the centering member. A clamping jack of the rotary and linear type, actuates a push-rod which, when it is located opposite the centering member, makes it possible to push the plate of the bolt to the bottom of the housing and retain it there.

REFERENCES:
patent: 3218893 (1965-11-01), Madison et al.
patent: 3670387 (1972-06-01), Nagao
patent: 3913754 (1975-10-01), Swartz et al.
patent: 4158520 (1979-06-01), Prebensen
patent: 4226559 (1980-10-01), Prebensen
patent: 4229124 (1980-10-01), Frey et al.
patent: 4398850 (1983-08-01), Talvensaari

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