发明名称 Mine stopping and braces therefor
摘要 A mine stopping is installed in a mine passageway includes a elongate panels 18, 19, 20 extending vertically in side-by-side relation from a floor to a roof of the passageway to at least partially close the passageway. A horizontal elongate brace or braces 35 extends between the walls of the passageway adjacent to the panels and attached thereto. A vertical column 70 extends from the floor to the roof and reinforces the brace. A horizontal anchor beam extends between the passageway walls adjacent the panels and connected to the passageway floor and/or roof. The braces are extendable to cater with different sized passageways. There may be an inclined brace engaging the passageway floor and the panels, Fig 10.
申请公布号 GB2384795(A) 申请公布日期 2003.08.06
申请号 GB20030002305 申请日期 2003.01.31
申请人 * JACK KENNEDY METAL PRODUCTS & BUILDINGS, INC. 发明人 WILLIAM R * KENNEDY;JOHN M * KENNEDY
分类号 E21F1/10;(IPC1-7):E21F1/14;E21F17/103 主分类号 E21F1/10
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