Mine roof support assembly

Details Mine roof support assembly Mine roof support assembly

1979-02-14

1980-08-12

Novosad, Stephen J.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

299 33, 405293, 405299, E21D 1544, E21D 1902, E21D 2304

Patent

active

042170672

ABSTRACT:
The invention relates to a mine roof support assembly for use in winning mineral material from a mineral mining working having a mineral face. The assembly comprises three roof support units positioned side-by-side along the face, and a goaf shield common to the three units. Each of the roof support units has a roof shield supported on a floor sill. The goaf shield is adjustable in height so as to extend from the floor to the roof of the working. Advance means are provided for advancing the roof support units towards the face, and further advance means are provided for advancing the goaf shield to follow up the advance of the roof support units. The further advance means acts between the goaf shield and the roof support units, and is such as to advance the goaf shield by a distance greater than the distance through which the advance means advances the roof support units.

REFERENCES:
patent: 2716025 (1955-08-01), Malloy et al.
patent: 4010618 (1977-03-01), Walker et al.
patent: 4064701 (1977-12-01), Friedrichs
patent: 4065931 (1978-01-01), Neu et al.
patent: 4073149 (1978-02-01), Kauter
patent: 4089181 (1978-05-01), Koppers
patent: 4127303 (1978-11-01), Nakajima et al.

Affiliated with

Also associated with

Rating

Mine roof support assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mine roof support assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mine roof support assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2180792