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Closed metal supports

Abstract

A closed metal support system that has a specific profile includes roof timber, ledger and roof timber. For convenience of transport, assembly, disassembly and repeated use during operation of an extraction powered system, the uprights in the central part are made sectional and are connected to one another by a hinge for folding into transport position. Longitudinal openings are made at the ends of the uprights in order to provide strength by creating flexibility in the hinged connections. The hinged connections of the sectional uprights have elastic gaskets. For convenience in folding the reinforcement, the ends of the uprights of the roof timber and ledger have the shape of a channel at junctions of their hinged connection.
Publication Date:
Aug 30, 1980
Product Type:
Patent
Report Number:
SU 2690626
Reference Number:
EDB-83-128464
Resource Relation:
Patent File Date: Filed date 28 Nov 1978; Other Information: PAT-APPL-757720
Subject:
01 COAL, LIGNITE, AND PEAT; 42 ENGINEERING; SUPPORTS; DESIGN; UNDERGROUND MINING; COAL MINES; USSR; ASIA; EASTERN EUROPE; EUROPE; MECHANICAL STRUCTURES; MINES; MINING; UNDERGROUND FACILITIES; 012000* - Coal, Lignite, & Peat- Mining; 420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)
OSTI ID:
6082245
Country of Origin:
USSR
Language:
Russian
Availability:
Plenum Publishing Corp., New York, NY.
Submitting Site:
HEDB
Size:
Pages: v
Announcement Date:

Citation Formats

Dolotov, N P, Afanas'yev, Yu V, Brednev, V A, Nuzhadikhin, A G, Tsiplakov, B V, and Uskov, I T. Closed metal supports. USSR: N. p., 1980. Web.
Dolotov, N P, Afanas'yev, Yu V, Brednev, V A, Nuzhadikhin, A G, Tsiplakov, B V, & Uskov, I T. Closed metal supports. USSR.
Dolotov, N P, Afanas'yev, Yu V, Brednev, V A, Nuzhadikhin, A G, Tsiplakov, B V, and Uskov, I T. 1980. "Closed metal supports." USSR.
@misc{etde_6082245,
title = {Closed metal supports}
author = {Dolotov, N P, Afanas'yev, Yu V, Brednev, V A, Nuzhadikhin, A G, Tsiplakov, B V, and Uskov, I T}
abstractNote = {A closed metal support system that has a specific profile includes roof timber, ledger and roof timber. For convenience of transport, assembly, disassembly and repeated use during operation of an extraction powered system, the uprights in the central part are made sectional and are connected to one another by a hinge for folding into transport position. Longitudinal openings are made at the ends of the uprights in order to provide strength by creating flexibility in the hinged connections. The hinged connections of the sectional uprights have elastic gaskets. For convenience in folding the reinforcement, the ends of the uprights of the roof timber and ledger have the shape of a channel at junctions of their hinged connection.}
place = {USSR}
year = {1980}
month = {Aug}
}