CS50687A1 - Connection for convergences measuring in low openings' measuring of mine and underground supports' thrust and structures' displacement in places with limited space
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Connection for convergences measuring in low openings' measuring of mine and underground supports' thrust and structures' displacement in places with limited space
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Application filed by Pavel HaladafiledCriticalPavel Halada
Priority to CS87506ApriorityCriticalpatent/CS266601B1/en
Publication of CS50687A1publicationCriticalpatent/CS50687A1/en
Publication of CS266601B1publicationCriticalpatent/CS266601B1/en
CS87506A1987-01-241987-01-24
Connected to measure low-mine convergence, mine and underground reinforcement pressures, and building shifts in confined spaces
CS266601B1
(en)
Connection for convergences measuring in low openings' measuring of mine and underground supports' thrust and structures' displacement in places with limited space
Supporting member for supporting underground hollow first mine space and structure mine drift and corner part being at the juncture of longwall transverse in accordance with this and drift part joining to this place