Displaceable working apparatus with extensible boom

Details Displaceable working apparatus with extensible boom Displaceable working apparatus with extensible boom

1995-04-10

1996-12-10

Bagnell, David J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

With mine roof-supporting means

182 37, 299 70, 405146, B66F 1104, F21C 1100

Patent

active

055824676

ABSTRACT:
A displaceable working apparatus provided with a platform having an extensible boom and being displaced on a guide rail is disclosed. The apparatus has a main frame secured to a main support which is movably secured to the guide rail and a main stabilizing mechanism for immovably securing the main frame to the adjacent roof surface. An extensible boom having a working free end which is equipped with a working element and is pivotally secured to a rotating support base positioned under the main frame. The boom is rotatable on the rotating support base and is angularly positionable with respect to the rotating support base. A drive is mounted on the frame to displace the platform along the guide rail.

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patent: 5007683 (1991-04-01), Granskog
patent: 5113969 (1992-05-01), Drolet et al.

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