Drill steel guide

Details Drill steel guide Drill steel guide

1979-10-10

1982-01-19

Taylor, Dennis L.

Cutlery

173 23, 173 44, 175220, F16C 3100

Patent

active

043113478

ABSTRACT:
A drill steel guide or clamp for use with mine roof drilling and bolting machines which guides and clamps the drill steel relative to a standard but which can be kicked out of the way by the advancing drill pod after which time the guide is no longer required for the particular bolt hole being drilled. The clamped guide comprises a clevis body pivotally secured to the standard having two retaining arms individually pivotally mounted to the clevis for rotation into clamping and guiding relation with the drill steel. A unique palm lock comprises extensions for embracing the retaining arms to prevent rotation of the arms out of guiding relationship with the drill steel. The palm lock is arranged to be unlatched when struck by the drill pod or kick plate attached thereto as the drill pod pushes the guide out of the way as it advances.

REFERENCES:
patent: 2734723 (1956-02-01), Larcen
patent: 2828109 (1958-03-01), Dellner
patent: 3827508 (1974-08-01), Mackinnon
patent: 4076337 (1978-02-01), Childress

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