Mineral mining installation

Patent · Tue Oct 14 00:00:00 EDT 1980

OSTI ID:6572053

Eggenstein, F; Plester, K

A mineral mining installation comprises a longwall structure, such as a conveyor or a winning installation, and a roof support assembly constituted by a plurality of roof support units positioned side-by-side. At least some of the roof support units are provided with hydraulic bracing rams for bracing the longwall structure longitudinally. Each bracing ram is pivotally connected between the longwall structure and the floor sill of a respective roof support unit. Each ram is connected to its floor sill by connection means constituted by a bracket slidably mounted on that floor sill for movement towards, and away from, the longwall structure. Means are provided for securing each of the brackets to its floor sill in any one of a plurality of positions.

• Assignee: Gewerkschaft Eisenhutte Westfalia (Germany, Federal Republic Of)
• Patent Number(s): US 4227833
• OSTI ID: 6572053
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420206* -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
422000 -- Engineering-- Mining & Underground Engineering-- (1980-)
DESIGN
EQUIPMENT
LONGWALL MINING
MECHANICAL STRUCTURES
MINES
MINING
MINING EQUIPMENT
SUPPORTS
UNDERGROUND MINING