BG50791A1 - Device for rock movement signalling around mine drives - Google Patents

Device for rock movement signalling around mine drives

Info

Publication number
BG50791A1
BG50791A1 BG9307890A BG9307890A BG50791A1 BG 50791 A1 BG50791 A1 BG 50791A1 BG 9307890 A BG9307890 A BG 9307890A BG 9307890 A BG9307890 A BG 9307890A BG 50791 A1 BG50791 A1 BG 50791A1
Authority
BG
Bulgaria
Prior art keywords
sleeve
fixating
spring
rock
fitted
Prior art date
Application number
BG9307890A
Inventor
Nikola B Bonchev
Tsvetan V Ivanov
Original Assignee
Minno Prerabotvatelno Predprij
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Minno Prerabotvatelno Predprij filed Critical Minno Prerabotvatelno Predprij
Priority to BG9307890A priority Critical patent/BG50791A1/en
Publication of BG50791A1 publication Critical patent/BG50791A1/en

Links

Landscapes

  • A Measuring Device Byusing Mechanical Method (AREA)
  • Support Of The Bearing (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.
BG9307890A 1990-10-24 1990-10-24 Device for rock movement signalling around mine drives BG50791A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BG9307890A BG50791A1 (en) 1990-10-24 1990-10-24 Device for rock movement signalling around mine drives

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG9307890A BG50791A1 (en) 1990-10-24 1990-10-24 Device for rock movement signalling around mine drives

Publications (1)

Publication Number Publication Date
BG50791A1 true BG50791A1 (en) 1992-11-16

Family

ID=3923314

Family Applications (1)

Application Number Title Priority Date Filing Date
BG9307890A BG50791A1 (en) 1990-10-24 1990-10-24 Device for rock movement signalling around mine drives

Country Status (1)

Country Link
BG (1) BG50791A1 (en)

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