Mobile mine-roof support
AssigneeHermann Hemscheidt Maschinenfabrik GmbH & Co.
InventorHans Bull
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Abstract
A mobile mine-roof support comprises a powered track-laying carriage having a carrier shaft extending longitudinally of the carriage between its tracks, the end portions of the carrier shaft being arranged to support mountings of bracket form for props supporting a roof beam which is stabilized by a lemniscate guide linkage the floorward links of which ar articulated to an attachment part or extension of one of the prop mountings, with stabilization of the laterally-pivotable props being effected by an orienting cylinder supported on the chassis.
Claims7
A mobile mine-roof support for use in mine workings comprising a track-laying carriage having at least two tracks and having a chassis forming a base, a plurality of hydraulically height-adjustable props articulatedly mounted at forward and rear regions of the chassis, a roof beam articulated to upper portions of the props, a lemniscate guide linkage pivotally mounted on the chassis for lateral swinging movement to guide the roof beam with respect to the chassis, the linkage having a hydraulic length-adjustable link, a laterally-acting orienting cylinder articulated to the carriage and connected to the guide linkage to stabilise the guide linkage, and a carrier shaft mounted on the chassis and extending longitudinally of the mine-roof support between the tracks of the carriage, the props being pivotally supported for lateral swinging movement on the carrier shaft.
Dependencies are inferred from the claim text.