The inventor's universal educator. An educational cyclopaedia and guide for inventors, patentees, manufacturers, mechanics, and all others connected directly or indirectly with patents (1919)
[ 134 ] … [ 135 ] PERPETUAL MOTION. Again is attention called to the interest given this matter by learned men. A member of Parliament Sir William Congrove, inventor of the famous Cong-rove rocket was a believer in andinvented a perpetual motion illustrated by No. 4, in which the point of capillary is…
Patents · Mechanical movements
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