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4984523 |
Self-propelled trolley and supporting track structure
A self-propelled trolley and supporting track structure, the trolley forming a housing for a four wheel drive mechanism which is coupled to a driving motor attached to the housing and to a pair of...
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4480157 |
Overhead running carrier
An overhead conveyor comprising a monorail and a carrier supported on the monorail. In the illustrated embodiment, the monorail is generally I-shaped in cross section and the carrier comprises two...
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4400592 |
Electric power transmission system
An overhead metal trolley rail has a head for supporting it, separated by a vertical web from a foot that projects from opposite sides of the web and has flat upper contact surfaces. Slidable along...
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4036147 |
Rapid transit system
A transit system for urban and inter-urban use is provided which comprises a plurality of electrically energized helicopters which are tethered to and powered from a pair of rails. The rails are...
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2918540 |
Enclosed electrified track and current collector
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0933084 |
Title is not available
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