Extensible brattice support system for mine face ventilation

Details Extensible brattice support system for mine face ventilation Extensible brattice support system for mine face ventilation

1983-03-08

1985-01-22

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

98 50, 299 12, 405132, E21F 114

Patent

active

044948948

ABSTRACT:
A mobile support system for an underground mine brattice curtain which extends the ventilation control of a conventional line brattice. Three embodiments are disclosed for the support system utilizing different fulcrums. In the preferred embodiment, the support's fulcrum is made up of two identical spaced semicircular skid plates which engage the floor and rockably support a first inclined rigid beam. This first beam is pivotally attached to a cantilevered generally horizontal roof engaging upper support at its inby side and has a foot engaging section on its outby side. A second rigid beam extends upwardly from the first beam towards the outby side of the upper support and is pivotally attached to the first beam. The other end of the second beam is a free end which can engage an indexing member on the lower outby end of the upper support. An impervious air curtain depends from the upper support along its length and along with the upper support can be moved to engage the roof. The floor engaging fulcrums in the two other embodiments are either two spaced circular plates or a conventional roof jack.

REFERENCES:
patent: 1766324 (1930-06-01), Berner
patent: 3715969 (1973-02-01), Burgess
patent: 3972272 (1976-08-01), Bagby
patent: 4157204 (1979-06-01), Kissell et al.
patent: 4282802 (1981-08-01), Divers et al.
patent: 4440070 (1984-04-01), Baker et al.

Affiliated with

Also associated with

Rating

Extensible brattice support system for mine face ventilation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Extensible brattice support system for mine face ventilation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extensible brattice support system for mine face ventilation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-564592