Description: Patent for a new and improved motor. This design consists in "[t]he combination, of a clock-work mechanism, of the spring-shaft, the screw geared thereto, whereby the said screw will be rotated simultaneously with the spring-shaft, the friction-drum, and the brake-bar bearing on the said drum and engaging the screw" (lines 90-95).
Date: August 24, 1886
Creator: Roberts, Robert Edward Lee
Item Type: Refine your search to only Patent
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