Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1979-01-18
1981-08-18
Pate, III, William F.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
173 38, 248354H, 248654, 299 35, E21D 2000
Patent
active
042843685
ABSTRACT:
A mining vehicle has a body with a center boom extending forwardly from the body. A temporary roof support is mounted on the outer end of the center boom. The roof support has a base, a telescopic column, and a cross beam on top of the column with auxiliary beams pivotally connected to the cross beam to engage the roof. Hydraulic jacks are connected between the base and the outer ends of the beams, respectively. A pedestal is pivotally mounted on the front end of the body, on each side of the center boom, to support a drill boom. A drill head is pivotally mounted at the outer end of the drill boom and is vertically movable by the drill boom for roof drilling. Each drill boom has the end opposite the drill head received in a track on the pedestal which serves to maintain the drill head on a vertical axis in any position of the drill boom. Each pedestal, at its inner end, has a laterally extending arm, the outer end of which is pivotally connected to the body at a pivot joint. A swing jack is connected between the body and the arm to swing the pedestal and drill boom about the pivot joint.
REFERENCES:
patent: 3481410 (1969-12-01), Lewkowicz
patent: 3768579 (1973-10-01), Long
patent: 3823902 (1974-07-01), Bumveller
patent: 3842610 (1974-10-01), Willis et al.
patent: 3871707 (1975-03-01), Jamison
patent: 4117894 (1978-10-01), Saunders
FMC Corporation
Megley R. B.
Moore A. J.
Pate III William F.
LandOfFree
Vehicle with dual drill booms and temporary roof support does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle with dual drill booms and temporary roof support, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle with dual drill booms and temporary roof support will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-35798