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This is a framework consisting of two wheels, and a chain driven crank shaft. One of wheels is used for conducting the rest of the frame depending on the operators point of direction. Foot pedals are used to drive the chain that spins the rear wheel providing the frame to move forward.

Combination Chain Driven Bicycle

This is a framework consisting of two wheels, and a chain driven crank shaft. One of wheels is used…

"This is the curve of the heart cam for converting uniform rotary motion into uniform reciprocal motion." —French, 1911

Curve, Heart Cam

"This is the curve of the heart cam for converting uniform rotary motion into uniform reciprocal motion."…