A mining support to support rectangular dog headings

A mining support to support rectangular dog headings

A mining support to support rectangular dog headings, with a straight frame and a roof-bar element supported by two props. It is characterised in that it has an internal hook frame whose roof-bar is composed of two elements (7, 8) lapped from the side of rectangular sections (9, 10), and connected b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KOWALSKI EDWARD, SKRZYNSKI KRZYSZTOF, SITEK JERZY, SURMA ANDRZEJ, RULKA KAZIMIERZ, WERECKI KAZIMIERZ, CHROSTEK JOZEF, PAWELCZYK HENRYK, PEREK JAN, KLUKA JERZY, BREWCZYNSKI KRZYSZTOF, KOZIEL KAROL, SAWKA BOHDAN
Format: Patent
Sprache:eng ; pol
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Beschreibung
Zusammenfassung:A mining support to support rectangular dog headings, with a straight frame and a roof-bar element supported by two props. It is characterised in that it has an internal hook frame whose roof-bar is composed of two elements (7, 8) lapped from the side of rectangular sections (9, 10), and connected by clamps (11, 12) with lapped two parts (1, 2) of the roof-bar element of the straight frame against which side wall arches (6) of arched frame are supported.