Document Type and Number:
Japanese Patent JPS4977390
Kind Code:
A
Abstract:
A marine propeller which has a boss having inner and outer cylinders coaxially disposed with each other in such a manner that at least one opposing surface of the inner and outer cylinders is obliquely formed in trough shape of wedge type and the other opposing surface thereof is obliquely formed correspondingly in crest shape of wedge type, and a resilient member disposed in the gap between the oblique opposing surfaces of the inner and outer cylinders so as to integrate both the cylinders.
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Application Number:
JP11888872A
Publication Date:
July 25, 1974
Filing Date:
November 29, 1972
Export Citation:
International Classes:
B63H1/20; B63H23/34; (IPC1-7): B63H1/14
Domestic Patent References:
| JPS394238Y1 | ||||
| JP9009593U |