Mine roof support equipment
AssigneeCoal Industry (Patents) Limited
InventorsPhilip Peter Jenkins, Stanley Lewis
Life of this patent
Estimating the term…
Abstract
Roof support equipment for a mining machine comprises a canopy supporting plurality of deformable, inflatable bags which can be temporarily deflated to allow advance of the equipment. The canopy is mounted on a movable base which may be constituted by the mining machine.
Claims5
Mine roof support equipment comprising a canopy, at least one upright member for supporting the canopy, and at least one inflatable, deformable member supported by the canopy, the canopy comprising a framework of parallel beams, spacer means interconnecting the parallel beams and constituting a deck supporting the inflatable, deformable member, a platform pivotally supported by links connected to the beams and rams connected to the platform and to the upright member for swinging and lifting the platform forward and rearward with respect to the movable base.
Mine roof support equipment comprising a canopy, at least one upright member for supporting the canopy, a movable base for supporting the said upright member, the movable base comprising a runner connected to the upright member and a link connected to the runner for connecting the runner with a mining machine, and at least one inflatable, deformable member supported by the canopy, the canopy comprising a framework of parallel beams, spaced means interconnecting the parallel beams and constituting a deck supporting the inflatable, deformable member.
Dependencies are inferred from the claim text.