Roof drilling and bolting apparatus

Details Roof drilling and bolting apparatus Roof drilling and bolting apparatus

1979-04-16

1981-03-17

Mackey, Robert

Tool driving or impacting

With indicating or signaling means

173 38, 173 52, 175219, 299 11, E21C 1102, E21D 1900, E21D 2000

Patent

active

042561868

ABSTRACT:
An operator cab and drilling assembly for a roof drilling and bolting device. The cab comprises a floor and a canopy having extensible hydraulic means for adjusting the distance between the cab floor and at least the front edge of the canopy. A horizontal rail extends along the entire length of the front edge of the floor and is spaced therefrom. A roof bolting and drilling apparatus slidably engages the horizontal rail. The rail is mounted by swinging arms to always be parallel to the cab floor.

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patent: 3375880 (1968-04-01), Pyles et al.
patent: 3951215 (1976-04-01), Galis
patent: 4022026 (1977-05-01), Childress
patent: 4050259 (1977-09-01), Childress
patent: 4079792 (1978-03-01), Paul et al.
patent: 4108253 (1978-08-01), Woodford
patent: 4117894 (1978-10-01), Saunders
patent: 4172615 (1979-10-01), Hakes
patent: 4173371 (1979-11-01), Kopas

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