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Application filed by Minno Prerabotvatelno PredprijfiledCriticalMinno Prerabotvatelno Predprij
Priority to BG9307890ApriorityCriticalpatent/BG50791A1/en
Publication of BG50791A1publicationCriticalpatent/BG50791A1/en
A Measuring Device Byusing Mechanical Method
(AREA)
Abstract
This device is used in the development of mineral and non-mineral ores for visual and distance registration of rock segregations on the ceiling and walls. Its construction ensures precision and accuracy of registered results. The device represents a signal bloc, which consists of a bearing plate (1), to whose upper part is fitted a cantering sleeve (2) with a nozzle in its top part; to the bottom part is coaxially-fitted a bottom bearing sleeve (3), with axes for a pressing (6) and hurling (7) spring in the direction of the bearing plate. Between the springs (6 and 7), a cassette (9) is positioned. It has an in-coiled signal band (8), whose one end is connected to the pressing spring. In the internal part of the bearing sleeve, to worked guiding channels (10), another spring (11) and a bordering with a heel fixating sleeve (12), are flexibly attached. On the external wall of the fixating sleeve is a measurement scale with apertures (13), in which are placed fixating needles (14). The signalling bloc is attached to a carrying element (16), located in an aperture (15), formed in the rock massif.
BG9307890A1990-10-241990-10-24Device for rock movement signalling around mine drives
BG50791A1
(en)
DEVICE FOR IDENTIFYING BY MEASUREMENT THE PLACE, THE POSITION AND, OR THE CHANGE OF THE PLACE RESPECTIVELY OF THE POSITION OF A SOLID BODY IN THE SPACE