Abstract A transport system for underground mining in which the cars, including the tractor and the trailer cars, have a plurality of supporting wheels in the form of flanged rollers provided with concavely curved surfaces which engage a track consisting of a pair of longitudinally extending convexly curved rails, the flanged rollers being inclined downwardly and outwardly so that only a portion of the roller bears against the cylindrical rail. The rails are carried by eccentric brackets which are secured to ties in the form of upright U-beams. The axles for the rollers are mounted for convenient removal for replacement purposes. The car is made up of a pair of horizontal plates, one of which rotates relative to the other about a central pivot. A cylindrical arm is carried on each side of the swingable plate as support elements. The cars, except for the tractor, are equipped with safety brakes for clamping engagement with the rails, and these are spring urged to braking position, but are retained away from braking position by fluid pressure. A cable traction drive is provided for the tractor, the cable of which is guided between flange rollers mounted on the track between the rails. Also arranged on the track between the rails are idler cable guide rollers.
Inventors
👤 H Widiger
👤 D Hoffmann
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-28 20:07
CPC Classifications
B; B61; B61B; B61B9/00; B61D; B61D11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
Transport system for underground mining comprising a car, wheels on opposite sides of said car for supporting same, said wheels constituting flanged rollers of the cable guiding type, an axle for each roller inclining downwardly and inwardly so that the axles on opposite sides incline toward each other, a track comprising a pair of longitudinally extending laterally spaced convexly curved rotatably adjustable rails along which said rollers travel, said rails considering them as quadrants of circular pipes constitute the upper right and left quadrants of such circular pipes, respectively, against which the roller portions adjacent the inner side flanges bear only, and the spacing of the inner side flanges of said rollers being less than the gauge of said track, whereby the inner side flanges of said rollers enclose the bearing contact with the inner side of said track so that the latter is gripped to effect stability and forced guidance of the rollers therewith, and when the rails wear they may be rotatably adjusted to present other bearing surfaces for further use.
Claim 2
Dependent Claim
173 words
Transport system for underground mining comprising a car, wheels on opposite sides of said car for supporting same, said wheels constituting flanged rollers of the cable guiding type, an axle for each roller inclining downwardly and inwardly so that the axles on opposite sides incline toward each other, a track comprising a pair of longitudinally extending laterally spaced convexly curved rotatably adjustable rails along which said rollers travel, said rails considering them as quadrants of circular pipes constitute the upper right and left quadrants of such circular pipes, respectively, against which the roller portions adjacent the inner side flanges bear only, and the spacing of the inner side flanges of said rollers being less than the gauge of said track, whereby the inner side flanges of said rollers enclose the bearing contact with the inner side of said track so that the latter is gripped to effect stability and forced guidance of the rollers therewith, and when the rails wear they may be rotatably adjusted to present other bearing surfaces for further use.