Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 226
820. FEATHERING PAD-DLE WHEEL.—The buck-ets are hinged with back le-vers and turned to their properposition by arms pivoted ec-centric to the shaft Theframework of the wheel is ofiron or steel. 821. Cross section. NAVIGATION AND ROADS. 21 … 822. OUTWARD THRUST PROPELLERWHEEL.—The blades pitch fonvard to throw thewater outward as well as backward, to increasethe thrust or power of the wheel. 823. SCREW PROPELLER. Four blades. Or-dinary form for heavy draft tugs and tow-boats. 824. SCREW PROPELLER, Griffithmodel. The inclination of the…
Mechanical movements
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