The joint (20A) has joint bodies (22A, 22B) made of organic material. Flexible fireproof shields (24A, 24B) are fixed on outer surfaces of joint bodies, respectively, where adherence between the shields and the joint bodies is realized in a chemical manner...

The device (20) has a determining unit for determining potential difference between two ends of sections (12a), proportional to current flowing on the sections of a current collecting unit e.g. pantograph (1), where the determining unit is constituted by a...

The device (20) has a HOC/HMC switch that switches between two states according to whether a roof cable conveys DC or single phase current. The switch connects the cable to a DC power line in one state, and insulates cable and sets the line to ground or to...

The pantograph has a main collector bow (2) in contact with the supply conductors (8) and also insulating arches (3). The collector is typically made from carbon and suitable for operation at speed. At very low speeds or stop an auxiliary contact (6) mount...

The contact head for a pantograph (1) has two rubbing contact strips (3) connected by a traverse (4) hinged to a stabilizing arm (5) of the pantograph. The strips are each connected to the traverse by a link (7) which can pivot to tilt in a direction perpe...

Non-rigid conduct is made of wavy sheets (2) attached together by rigid fixing elements (3). The wavy sheets and fixing elements are cut at the same length, which is the perimeter of the assembled conduct. One or more fixing element is fitted on each sheet...