Gallery walking lining

Details Gallery walking lining Gallery walking lining

E - Fixed Constructions

21

D

61/67

E21D 15/44 (2006.01) E21D 23/00 (2006.01) E21D 23/08 (2006.01)

Patent

CA 1091460

ABSTRACT OF THE DISCLOSURE The gallery walking lining consists of arch segments connected in alternate pairs by means of tie rods disposed near to the floor. Each arch segment is composed of two arch elements connected at a crown and terminating in supporting hydraulic cylinders. In the arch segment there are slidably mounted roof-support elements connected to hydraulic cylinders. Extending of the supporting hydraulic cylinders causes a preliminary spragging of the arch segment in the heading. Final spragging is effected by means of the hydraulic cylinders which press the roof-support elements to the surface of the heading. Displacing of the arch segment is performed after withdrawing it by suspending on a rail carried in adjacent spragged arch segments. The displacing of the withdrawn arch segment on the rail is facilitated by means of runners.

324031

Affiliated with

Also associated with

Rating

Gallery walking lining does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1073265