Apparatus for adjusting the leverage of an oar or scull while ro

Details Apparatus for adjusting the leverage of an oar or scull while ro Apparatus for adjusting the leverage of an oar or scull while ro

1992-11-19

1994-06-28

Huppert, Michael S.

Marine propulsion

Oar or paddle

Support

416 74, 440106, B63H 1606

Patent

active

053242181

ABSTRACT:
An oar or scull is equipped with a movable sliding bushing or collar (2, 3) for adjusting the leverage while rowing. For this purpose a locking device (12) normally prevents the linear or axial movement of the oar shaft with a sliding sleeve (8) which is mounted on the oar shaft (1) relative to the locking device. By pushing a button (11) on the handle (10), the locking device (12) will allow a relative movement of approximately 2.5 mm at a time between the collar (3A, 3B) and the shaft (1). Releasing the button (11) allows again a movement of 2.5 mm, whereby a rower is able to adjust the leverage and thus the load while rowing.

REFERENCES:
patent: 826058 (1906-07-01), Pendleton
patent: 3108565 (1963-10-01), Cain

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