NASA NTRS · 19830000417
Automated Coal-Mine Shuttle Car
Abstract
Cable-guided car increases efficiency in underground coal mines. Unmanned vehicle contains storage batteries in side panels for driving traction motors located in wheels. Batteries recharged during inactive periods or slid out as unit and replaced by fresh battery bank. Onboard generator charges batteries as car operates.
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Collins, E. R., Jr.. 1984-04-01. Automated Coal-Mine Shuttle Car. https://ntrs.nasa.gov/citations/19830000417
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