Dual Purpose Bicycle Provides Transportation and Pedal Power!
A dual purpose bicycle (DPB) is a bicycle which can be used for both transportation and for power production. The modification consists of a free wheel, a bottom bracket and a “V” pulley. The DPB can power a rice thresher, a peanut sheller, a circular saw, a wooden lathe, a piston pump and many other implements that require rotary motion.
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