Shield supports suitable for use in mines

Details Shield supports suitable for use in mines Shield supports suitable for use in mines

1984-07-19

1986-08-26

Husar, Cornelius J.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405295, E21D 1702, E21D 1900

Patent

active

046079866

ABSTRACT:
A shield support, suitable for use in mines, comprising a floor-engaging structure which includes two sledge or like elements disposed side-by-side and spaced apart one from the other, a roof-engageable canopy, a shield mounted for pivotal movement with respect to the canopy and extendable and contractible prop means, carried by said elements, which are operable to adjust the height of the canopy. A pivotal guide linkage for supporting the shield from said elements includes links which are so connected to those elements and to the shield that the elements are rigidly coupled together only through the intermediary of those links and the shield.

REFERENCES:
patent: 3885396 (1975-05-01), Snowden et al.
patent: 3928981 (1975-12-01), Parker et al.
patent: 4037419 (1977-07-01), Hill et al.
patent: 4048804 (1977-09-01), Elsner et al.
patent: 4197035 (1980-04-01), Siebenhofer et al.

Affiliated with

Also associated with

Rating

Shield supports suitable for use in mines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shield supports suitable for use in mines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shield supports suitable for use in mines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2309793