Mine support prop

Details Mine support prop Mine support prop

1981-07-20

1987-12-15

Stodola, Nancy J.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

248351, E21D 1502, E04G 2502

Patent

active

047129476

ABSTRACT:
A mine support prop which includes a timber load support member which is elongated in the direction of its grain, and includes a zone of reduced cross-section and a sleeve which is preferably made from mild steel, which surrounds the support member over a substantial portion of its length and extends over the zone of reduced cross-section and onto the timber member on either side of the reduced cross-section zone to support the timber member against bending when it is compressed under load in its axial direction.

REFERENCES:
patent: 1752101 (1930-03-01), Meutsch
patent: 4052029 (1977-10-01), Townsend
patent: 4306821 (1981-12-01), Moore

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