| 摘要 |
A cylindrical mixing drum for mortar and similar material includes a drum body having a hollow shell with upper and lower portions and front and rear portions and an opening having front and rear portions in the upper portion and a pair of spaced substantially parallel and opposite end plates with a paddle shaft rotatably mounted between the plates. A first pair of spaced paddles is used for forcing a mix in a first direction and a second pair of paddles is used for forcing a mix in a second direction. A pair of spaced drum end scrapers are also mounted on the shaft closely adjacent the interior surface of an end wall. A pair of drum end wipers is also included for wiping another portion of the end wall. The lower portion of the drum shell is substantially cylindrical in shape from the front portion of the opening to the rear portion of the opening and the paddles are positioned on the shaft to be closely adjacent the interior surface of the drum shell as the shaft is rotated through 360°.
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