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  • Materials Handling Handbook 2nd Edition Complete Document
    More specialized, fixed-path types of equipment are commonly used, such as towlines or overhead trolleys or power-and-free conveyors.
  • Electric Railways, 1880-1990
    … the mid-1880s, in addition to important public demonstrations of electric traction held at great exhibitions (e.g. Chicago in 1883), there were several elec- tric street railways in operation, usually with some version of the overhead trolley system as devised by …
  • Automatic Guidance System for Trolley-Powered Mining Haul Trucks
    The automatic guidance system would assist or completely relieve the driver when the truck is running on trolley, and hence, full utilization of the overhead trolley system would be achieved.
  • History of Public person transport of beginnings to 2014
    In the 16th century, this plan car typus was detached from an upper car , that itself mainly through straight posts or columns and distinguished a curved tester roof of the Kobel.
  • Urban Transit Systems and Technology
    Influential members of European city governments felt that streets and squares should not be wrapped in an untidy web of overhead wires and believed that further technical work would yield a feasible and visually unobtrusive alternative to the American overhead trolley system.