Bicycle propelling unit

Claim 1

A POWER DRIVE UNIT FOR BICYCLES COMPRISING, A FRAME HAVING A SINGLE ROAD WHEEL JOURNALED ON ONE END THEREOF AND A DRIVE ENGINE MOUNTED ON THE FRAME AND COUPLED TO THE ROAD WHEEL IN DRIVING RELATION THEREWITH, SAID FRAME BEING COMPRISED OF A CURVED ARM EXTENDING FROM THE ROAD WHEEL WITH A PIVOT STRUCTURE HAVING HORIZONTAL AND VERTICAL DISPLACEMENT AXES AT THE OTHER END OF THE ARM, A PAIR OF SPACED PARALLEL PLATE MEMBERS MOUNTED ON THE PIVOT STRUCTURE AND INCLUDING CONNECTION MEANS THEREIN CONNECTING THE PLATES TOGETHER IN A CLAMPING RELATIONSHIP, SAID PLATE MEMBERS BEING MOUNTED TO FIT AROUND THE CLAMP ON ONE END OF A FRAME OF A BICYCLE AHEAD OF AND IN ADJACENT RELATIONSHIP WITH THE HUB OF THE REAR WHEEL AXLE OF THE BICYCLE, AND CONTROL CABLE MEANS EXTENDING FROM THE DRIVE ENGINE AND MOUNTED ON THE ARM OF THE FRAME WITH A PORTION EXTENDING BEYOND SAID ARM AND ADAPTED TO BE MOUNTED ON THE BICYCLE FRAME FOR CONTROL OF THE DRIVE ENGINE, SAID PIVOT STRUCTURE BEING LOCATED NORMAL TO AND AFFIXED ON ONE OF THE SPACED PLATES AND POSITIONED ON ONE SIDE OF THE BICYCLE FRAME TO EXTEND TRANSLATIONALLY FROM ONE END OF SAID CURVED ARM AND WITH THE OTHER END OF THE CURVED ARM WITH THE DRIVE ENGINE ATTACHED THERETO BEING POSITIONED SUCH THAT THE DRIVE WHEEL OF THE POWER UNIT WILL BE ALIGNED WITH THE REAR BICYCLE WHEEL.