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 756
l of thebuilding with a bearing which goes round the shaft near its top and holds it vertically in position.A casting nmki is clamped around this shaft so that it can revolve freely. To this casting is boltedthe sweep-board g h, being adjusted until it is horizontal. On the top of the shaft is… … 724 SCREW-PROPELLER. eaual to the weight of the casting and sweep-board. In starting, the moulder first adjusts his guide-curve C h to be central with the axis. Next the sweep-board is attached to the casting n m k t, andthe weight W is adjusted. Hereupon he screws the curve he won his sweep-board.…
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