US Patent 10220910 Handlebar drive for bicycle

A supplemental drive mechanism for a bicycle or other manually compelled pedal vehicle providing a reciprocating handlebar assembly, a cable drive, a transmission assembly, and a supplemental drive assembly, wherein a forced reciprocating movement of the handlebar by a push-pull motion of a rider by the upper body, by and through the transmission, results in a singular direction rotational movement of a supplemental chain sprocket incorporated into the rear wheel drive of the bicycle in addition to a rotational pedal movement the rider by the lower body as applied to the pedals of the bicycle in a forward direction.