Mine stopping lap-over panel clamp

Details Mine stopping lap-over panel clamp Mine stopping lap-over panel clamp

1983-07-11

1984-11-27

Taylor, Dennis L.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

52484, 405150, E21D 900, E21F 100

Patent

active

044848374

ABSTRACT:
A clamp for use in a mine stopping formed by a plurality of elongate extensible panels extending vertically from the floor to the roof of a passageway in a mine. The stopping comprises a series of main panels extending vertically side-by-side, with a space between two adjacent main panels, and a lap-over panel extending vertically and bridging the space. The clamp comprises a crosshead adapted to fit in the lap-over panel extending laterally of the lap-over panel and a hook-receiving stem slidable on the crosshead lengthwise of the crosshead. The slidable hook-receiving stem is formed to have hooks at the ends of a wire tie hooked thereto with the tie extending around a bar to draw the crosshead via the stem toward lips of the lap-over panel to clamp the latter in place.

REFERENCES:
patent: 2729064 (1953-04-01), Kennedy et al.
patent: 3302343 (1967-02-01), Bear
patent: 3608159 (1971-09-01), Brucker
patent: 3630554 (1971-12-01), Cherniak
patent: 3832816 (1974-09-01), Jahn
patent: 4226058 (1980-10-01), Riley
Jack Kennedy Metal Products & Buildings, Inc. Metal Stopping Steel Man Doors, brochure, p. 2, drawing of Std. Pkg. Stoppings.

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