Mine ventilation structure

Details Mine ventilation structure Mine ventilation structure

1993-06-14

1995-11-14

Joyce, Harold

Ventilation

Mine

With partition means

405153, E21F 114

Patent

active

054661870

ABSTRACT:
A mine ventilation structure for installation at the intersection of first and second passageways in a mine. The ventilation structure defines a first passage communicating with the first passageway and a second passage communicating with the second passageway. The ventilation structure includes a pair of generally parallel, spaced-apart side walls defining the side walls of the first passage, and a plurality of elongate deck panels extending between the side walls and forming the roof of one of the first and second passages and the floor of the other of the first and second passages. Each deck panel is a sheet metal panel generally of inverted channel shape in transverse cross section, having an upper web and side flanges extending down from the upper web at opposite sides of the web. Tie bars hold the deck panels together in fixed side-by-side relation with the side flanges of the panels closely adjacent one another so that the webs of the panels form a substantially continuous surface.

REFERENCES:
patent: 1923008 (1933-08-01), Proctor
patent: 2062160 (1936-11-01), Calkins et al.
patent: 2180317 (1939-11-01), Davis
patent: 2238566 (1941-04-01), Perrine
patent: 2264100 (1941-11-01), Smith
patent: 2333908 (1943-11-01), Wilkoff
patent: 4621951 (1986-11-01), Dewson

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