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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 desdoi:10.1038/scientificamerican03251871-195a fatcat:b7jq4j2z4ndktdsqsds3xbrya4