| 摘要 |
There is disclosed a portable grinding apparatus which includes a frame with straps and the like for mounting on the back of an operator. The frame supports a base plate carrying an electric motor which is connected through a flexible shaft to a hand-held abrating device, such as a grinding wheel and the like. The base plate, which supports the grinding motor, is rotatably mounted on the frame to permit shifting the abrating device between the operator's hands and the motor is covered with a housing which includes an exhaust fan for circulating a flow of air across the motor to provide comfort to the operator.
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