FIELD: mechanical engineering; mechanical drives, revolution counters, time relays, pulse sensors, reduction gears, etc. SUBSTANCE: variable-speed drive contains drive wheels and two driven wheels with coils. Ends of rope are connected to these coils; driven wheels are mounted for contact with drive wheel in turn. EFFECT: enhanced reliability. 2 dwg
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Authors
Dates
1997-06-20—Published
1992-12-17—Filed