Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 226
er 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 blades ismade adjustable, and they are attached toa rim outside from the hub. 825, SCREW PROPELLER, Hodgsonsmodel.The blades are curved… … 826. SCREW PROPELLER,^5, . the Ericsson model. A rim con-^^ necting all the blades, supposed to counteract the centrifugal tendenryof the water. 827. Side view. 2l6 NAVIGATION AND ROADS.
Mechanical movements
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