Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 162
558. WATER METER, Thompson model. A swinging disc movement on ball socket, operated by a flow of water, rotates a vertical crank spindle and gear train with index liand above the diaL … 559. WATER-VELOCITY INDICA-TOR AND REGISTER.—Variations invelocity of a stream varies the position ofthe float, which is registered on a traversecard by a pencil.
Mechanical movements
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