Hydraulic and earth engineering – Earth treatment or control – Ground stabilization or reinforcement
Patent
1976-12-21
1979-01-16
Taylor, Dennis L.
Hydraulic and earth engineering
Earth treatment or control
Ground stabilization or reinforcement
E21D 1544
Patent
active
041342704
ABSTRACT:
A mine roof support control monitoring system in which at least some of a row of self advancing mine-roof supports at a mine face each include means for providing data relating to successive advances of that support. This data is accumulated by other means of the system and stored to give readily available indicationsof differences of actual support advances. The system preferably further includes means for pre-energizing the advance mechanisms of such supports to eliminate data relating to slack or tolerance.
REFERENCES:
patent: 3489460 (1970-01-01), Cooper
patent: 3495499 (1970-02-01), Ward
patent: 3531159 (1970-09-01), Schmidt
patent: 3643445 (1972-02-01), Schmidt
Darbyshire Kenneth
Small Fred
Drucker William Anthony
Gullick Dobson Limited
Taylor Dennis L.
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