Document Type and Number:
Japanese Patent JPS4863363
Kind Code:
A
Abstract:
An elevated boom draws a submerged blade-carrying rake arm in rotation about a vertical column to which the rake arm is connected by a coupling having but a single pivot axis and that axis is directed towards the outer end of the boom; the rake arm, when in motion, is pulled by draft means which fasten at spaced-apart points along the arm which converge therefrom to a common connecting means mounted near the outer end of the boom.
Application Number:
JP11650072A
Publication Date:
September 03, 1973
Filing Date:
November 20, 1972
Export Citation:
International Classes:
B01D21/06; (IPC1-7): C02C1/34