1983-01-13
1985-01-01
Apley, Richard J.
Undertaking
A63B 300
Patent
active
044913141
ABSTRACT:
Adjustable uneven bars are used for gymnastic competition and training of sportsmen, the uneven bars comprising two parallel handrails mounted on the top ends of two pair of uneven uprights, each pair of uneven uprights being braced by a pair of tensioning cables and being equipped with an automatic cable tension control device, a handrail spacing adjuster connected between the uprights of each pair of uneven uprights and linked mechanically with the automatic cable tension control device of the corresponding pair of uneven uprights, each handrail spacing adjuster provided with a hand drive crank and an electric drive motor, and an interlocking device which prevents simultaneous operation of both motors.
REFERENCES:
patent: 4402501 (1983-09-01), Lohman
Belyavsky Alexandr D.
Borozdinov Gennady M.
Kalognomos Viktor I.
Komov Nikolai A.
Pavlov Gennady A.
Apley Richard J.
Crow S. R.
Nauchno-Issledovatelsky I Kostruktorsky Institut
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