the rider. connected by belt in the usual way with a sprocket either arm in engagement with the wrench body. This invention has been patented by Mr. Allan H. This improvement has been patented by Mr. C. A. wheel on the pedal shaft, and the guard over the Lessells, of No. 18 Balmoral Road, New… … THE WORLD'S COLUMBIAN EXPOSITION-THE HORTICULTURAL BUILDING. ) 1891 SCIENTIFIC AMERICAN, INC.
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