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Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York : The Norman W. Henley publishing co. · leaf 209

An illustration from Mechanical movements, powers and devices; a treatise describing mechanical movements and devices used in construcive and operative mechinery and the mechanical arts, being practically a mechanical dictionary, 1917, leaf 209
759. ELECTRIC-DRIVEN FAN, Edison model. Fan on same shaft with the arma-ture. Ball bearings. Runs with four or-dinary batteries. … 759a. NON-ARCING LIGHT-NING ARRESTER.—This arresteris made up of a number of circulardiscs of non-arcing composition, separ-ated from each other by thin sheets ofmica. A discharge jumps readilythrough these thin sheets of mica,as their combined resistance ismuch less than that of a single sheetof…

Mechanical movements

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