E - Fixed Constructions – 21 – F
Patent
E - Fixed Constructions
21
F
335/2
E21F 13/02 (2006.01) E21F 17/06 (2006.01) H02G 11/02 (2006.01)
Patent
CA 1246698
ABSTRACT OF THE DISCLOSURE: A trackless, center-pivot-steered underground vehicle, which has a tractor section, which is driven by an electric motor, which is powered via a sliding contact line, a current collector device, which is movable along said line, and a supply cable, which is electrically and mechanically connected to the current collector device and is adapted to be unwound from a reel against a restoring force. The supply cable is connected to the current col- lector device by a slip ring member, which is rotatable about a vertical axle. A helically winding cable reel is mounted on the tractor section and rotatable about a verti- cal axle, which is provided with a slip ring member. A guide arm is coaxially arranged with respect to the cable reel and is adapted to be pivotally movable by hydraulic means. A hydrostatic axial piston transmission is coupled to a three-phase a.c motor. An improved mobility of the vehicle and a large width range throughout the range of travel are ensured by the combination of the following features.
500671
Drews Eberhard
Hillmann Willi
Paus Hermann
Maschinenfabrik Hermann Paus G.m.b.h.
Metallgesellschaft Aktiengesellschaft
Robic Robic & Associes/associates
Vahle (paul) G.m.b.h. & Co. Kg
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