Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 754
y and axially; i. e., the pitch atthe circumference is different f:om that at the hub, and varies also along its length. At the sametime this screw is made to overhang the hub. The Collis-Brown screw, Fig. 3794, like the Mangin, consists of two propellers on the same shaft,with blades of the…
Mechanical engineering -- Dictionaries
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