Tow bar for tailwheel aircraft

Details Tow bar for tailwheel aircraft Tow bar for tailwheel aircraft

1986-01-28

1987-04-21

Marbert, James B.

Handling: hand and hoist-line implements

Hand bars and hand barrows

Ball retriever

A47F 1306, B25J 102

Patent

active

046591249

ABSTRACT:
A tow bar particularly adapted for use with tailwheel aircraft which includes an elongated rod, a handle at one end, a pair of clamping members pivotally connected at an opposite end, the clamping members each being of a generally u-shaped configuration defined by a pair of spaced arms, a bight therebetween, and a tail, a pivot pin connecting the clamping members to the rod, first and second arms of each clamping member having respective first and second noses, the first noses being overlapped in a closed position of the clamping members to embrace a tailwheel aircraft tailspring therebetween, the second noses of each clamping member being effective to contact the aircraft tailwheel tailspring to move the clamping members from an open to the closed position thereof, and an over-the-center spring for holding the clamping members in the open position and biasing the clamping members to the second position after passing an over-the-center plane through the pivot.

REFERENCES:
patent: 465069 (1891-12-01), Reid
patent: 579333 (1897-03-01), Smith
patent: 1452679 (1923-04-01), Fisher
patent: 2944837 (1960-07-01), Fotheringham
patent: 3669427 (1972-06-01), Curtis

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