Abstract: A pedal drive mechanism that provides continuous, uninterrupted torque to the drive chain or belt. The continuous torque effect is a result of establishing two separate but connectively joined axes of rotation that transmit pedal crank force to the drive chain (55). The assembly of a right pedal crank (29) rotative mounted about left pedal output crank (28) are connectively fastened (46) to the left pedal crank (38) through the bottombracket bearing (37) defines the first axis of rotation. The assembly of the chain sprockets (35, 34 and 33), sprocket interface (25) and sprocket support (24) are rotatively mounted by a sealed bearing (40) about a bearing inner race support (23) and eccentric flange (22) establish a second axis of rotation. The fixtures of these two axes of rotation are connectively joined by articulating links (26) with self-aligning sealed bearings (27).

Abstract: A hanger and a keeper secured thereto for simultaneously supporting and retaining multiple electrical power rails in spaced apart parallel coplanar alignment. To construct a multi-phase power distribution system for use with a vehicle equipped with multiple single-phase power collector shoes respectively operable with the power rails, a plurality of hangers are mountable from respective ground support elements along and at a common predetermined height from a predetermined vehicle travel path or guideway. Following positioning of the guide rails on the hangers, the keepers are secured thereto so as to simultaneously retain the power rails on their hangers in operative relation with the power collector shoes. With this construction, multiple power rails may be provided in operative relation with the power collector shoes without individual adjustment.