Shaft immobilizer apparatus

Details Shaft immobilizer apparatus Shaft immobilizer apparatus

1982-04-08

1984-08-07

Blix, Trygve M.

Marine propulsion

Screw propeller

Shaft braking or locking

188 75, B63H 2300

Patent

active

044641273

ABSTRACT:
A propeller shaft immobilizer having a substantially hollow, open ended rectangular lower base portion fixedly mounted to the floor portion of a boat. An upper support base portion is slidably mounted on the lower base portion to allow vertical movement of the upper base portion. Upper and lower engaging surfaces are movably mounted on the upper base portion and movable by hydraulic power to frictionally engage the propeller shaft to be immobilized.

REFERENCES:
patent: 474169 (1892-05-01), Hellinger
patent: 678228 (1901-07-01), Cormier
patent: 1778570 (1930-10-01), Soresi
patent: 2055267 (1936-09-01), Uffert
patent: 2251615 (1941-08-01), Miehle
patent: 3036667 (1962-05-01), Schilling
patent: 3731768 (1973-05-01), Fetzer
patent: 4031987 (1977-06-01), Webb
patent: 4145940 (1979-03-01), Woloveke et al.

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