POWERED SUPPORT FOR STEEP SEAMS Russian patent published in 2011 - IPC E21D23/00 

FIELD: mining.

SUBSTANCE: powered support for steep seams of medium power and powerful up to 5-6 m consists in one-type interchangeable linear sections. Each of the linear sections has a beam, a shoe, equipment section capsule, goaf side and near well-bore enclosure and elements of thrust, movement and correction. Note that a bar consists of many tracks jointed and pushed apart by bundle of rods made of spring steel attached to hydraulic support of linear section installed to bootleg that leans upon support plate and further on bearing frame with bootleg inside of which there is equipment section capsule.

EFFECT: increase of stability and improvement of support movement, equipment section capsule preservation from direct influence of rock pressure.

2 cl, 3 dwg