Physiological loading device having a central pedal drive shaft 5 which drives via a freewheel a drum-shaped wheel 21 with inner gearing to which are advantageously coupled three follower gears. These drive, via gearing, an inner shaft 10 which is arranged around the drive shaft. The rotor of an electric...http://www.google.fr/patents/US4452445?utm_source=gb-gplus-shareBrevet US4452445 - Loading device for physiological examinations
