DEVICE FOR MEASURING OFFSETS OF ROCK WALLS IN MINE WORKINGS

摘要

FIELD: mining.;SUBSTANCE: device includes vertical post, bracket, indicating gauges, telescopic lever with arms of various length, the long arm of which has wing with strain gauges, and short lever arm is connected via spring to vertical post to which brackets for indicating gauges are attached. At that, long arm of the above telescopic lever is equipped with additional plate with strain gauges, and plane of plate with strain gauges is arranged perpendicular to plane of wing with strain gauges.;EFFECT: enlarging the range of measurements.;2 dwg