Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1982-06-04
1984-05-22
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
299 32, 405290, E21D 1500
Patent
active
044498594
ABSTRACT:
A mineral mining installation includes a longwall conveyor and a plurality of roof support units positioned side-by-side on the goaf side of the conveyor. The conveyor is braced longitudinally by a block bracing system having a plurality of hydraulic bracing rams each of which is disposed at an acute angle to the conveyor. The bracing rams act between the conveyor and floor girders of the roof support units. Each bracing ram is attached to a respective floor girder by means of a bracket. Each bracket has first and second bracket parts welded together, the first bracket part comprising means for connecting the bracket to its floor girder, and the second bracket part forming an extension of the first bracket part and carrying a pivot joint member for pivotally supporting the cylinder of the associated bracing ram. The first bracket part is a standard cast member, to which second bracket parts of differing lengths can be welded.
REFERENCES:
patent: 4169689 (1979-10-01), Weirich et al.
patent: 4227833 (1980-10-01), Plester et al.
Eggenstein Friedrich
Plester Karl-Heinz
Rosenberg Harry
Terhorst Gunter
Gewerkschaft Eisenhutte Westfalia
Taylor Dennis L.
LandOfFree
Mineral mining installation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mineral mining installation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mineral mining installation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1475929