POWERED UNYIELDING SUPPORT IN SETS Russian patent published in 1994 - IPC

Abstract RU 2021526 C1

FIELD: support of mine working. SUBSTANCE: unit of powered unyielding support has sets of two extreme and one middle units. Cappings and bases of extreme units are connected by upper and lower cross-pieces. Rigidly connected to side of capping of extreme unit is beam with controlled hinged cantilever on front end. Beam is located along longitudinal axis of roofing and is shorter than roofing by length of cantilever. Hinged cantilevers of front units are installed in front of beams of next units by covering the roof. EFFECT: higher efficiency. 1 dwg

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RU 2 021 526 C1

Authors

Ivanov V.G.

Shestokrylov S.T.

Dates

1994-10-15—Published

1992-10-29—Filed