Manually operable boat propeller

Details Manually operable boat propeller Manually operable boat propeller

1990-07-11

1991-07-09

Basinger, Sherman

Marine propulsion

Operator powered drive for propelling means

Rotary cranking arm

440 53, B63H 1620

Patent

active

050301454

ABSTRACT:
A manually operable unit having a single handle for driving, steering and tilting a boat propeller. The crank handle, when turned, drives the propeller through bevel gearing. A vertical sleeve surrounding a vertical drive shaft has an offset U-shaped portion terminating in a sleeve serving as a bearing for the crank handle. Pushing the crank handle against the bearing rotates the vertical sleeve which mounts the propeller, therefore steering the propeller. Pulling of the handle will tilt the vertical sleeve with respect to a mounting C-clamp to pivotally raise the propeller.

REFERENCES:
patent: 1512902 (1924-10-01), Boyd
patent: 1917503 (1933-07-01), Crump
patent: 2487195 (1949-11-01), Stephens
patent: 2627243 (1953-02-01), Stahmer
patent: 2684045 (1954-07-01), Cato
patent: 2835217 (1958-05-01), Newberry
patent: 3323482 (1967-06-01), Sanborn

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