Archibald's Improved Spoked Wheel

1871 Scientific American  
This device is the invention of N. Adkins, of Danbury Conn. It is designed to lessen the fatigue of ascending and descending stairways. It consists of hinged steps, having coiled or rubber springs placed on the under side of the front edge, or tension springs attached to the front corners of the steps, and extending back to the next step, both methods of attachment being shown in the aunexed engraving. -.... - ARCHIBALD'S IMPROVED SPOKED WHEEL. Our readers will remember an illustration and des
more » ... lustration and des ription of a novel and, in some respects, unique machine for putting together spoked wheels, published on page 151, Vol. XXII. of this journal. The accompanying engraving illustrates the wheels made by the same in'ventor and manufacturer, for which, we think, he justly claims superiority in design, strength, and facility in manufacture .
doi:10.1038/scientificamerican03251871-195a fatcat:b7jq4j2z4ndktdsqsds3xbrya4