Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Adjustable
Patent
1998-07-09
1999-12-07
Lopez, F. Daniel
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Adjustable
416153, 416205, 416220R, 416220A, 416244B, B63H 312
Patent
active
05997253&
ABSTRACT:
An adjustable propeller is provided with a receptacle on its hub which is shaped to receive a base portion of a propeller blade. First and second pluralities of alignment devices are provided to allow an operator to select a desired pitch angle and attach the blades of the propeller to the hub so that the desired pitch angle is selected. Alignment devices can comprise a plurality of holes in each receptacle which are tapped to receive a bolt in threaded association therein. Associated holes in the base portion of the propeller can allow free passage of the bolt by selecting one of the holes in the base portion of the propeller and aligning that hole with an associated hole in the receptacle of the hub, an operator can quickly and easily select a desired pitch angle for the blade. A bolt passes through a hole in the base portion of the blade and threads into an associated hole in the propeller hub to select the pitch and attach the base portion to the hub.
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Brunswick Corporation
Lanyi William D.
Lopez F. Daniel
Nguyen Ninh
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