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 235
88oL A SPRING WHEEL.—The spokesare of flat spring steel, curved and madefast to the hub and to a secondary steel rim,which is clipped to the outer rim, which maybe solid or with a rubber tire. SSoj. THE AUTOMOBILE HORN.—The rubber ball has a valve at the bottom forcharging with air. A whistle or a…
Mechanical movements
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