Man-powered boat propulsion device

Details Man-powered boat propulsion device Man-powered boat propulsion device

1990-01-31

1990-11-13

Peters, Jr., Joseph F.

Marine propulsion

Oscillating propelling means

Fishtail motion propelling means

440 32, B63H 136

Patent

active

049698460

ABSTRACT:
A man-powered boat propulsion device comprising a hand rod reciprocated horizontally by rowers, a vertical support rod moveably suspended from and slidably supporting the hand rod on a sliding support, an operation rod pivoted to the hand rod, a vertical shaft interlocked with the operation rod and capable of rotating clockwise and counter-clockwise, a fin blade secured to the shaft and capable of horizontally rotating both rightward and leftward alternately, a handle a connected to the hand rod, a change-over device connected to the handle and capable of transmitting a turning movement of the handle either clockwise or counter-clockwise changeably, and a direction control device connected between the change-over device and the shaft for transmitting the handle turning movement. Easy boat propulsion and steering is possible even of unskilled persons.

REFERENCES:
patent: 775155 (1904-11-01), Thompson
patent: 1937907 (1933-12-01), Nock
patent: 2364255 (1944-12-01), Troth
patent: 2696797 (1954-12-01), Whidden
patent: 3834343 (1974-09-01), Hopkins

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