| 摘要 |
A cutter wheel for a dredging apparatus mounted for rotation about a shaft and having outwardly projecting cutting blades mounted on openings formed in the cylindrical peripheral plane of said wheel, while a stationary suction mouth is provided inside said wheel which is adapted for being in fluid communication with the cutting blades on rotation of said wheel, said suction mouth being connected to said shaft so that it may be rotated by means of a piston-cylinder assembly to change its angular position.
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