FIELD: pipeline transport. SUBSTANCE: device has branch pipe 1 with flange, intermediate chamber 2, cylinder 3, hollow shaft 4. Placed inside hollow shaft is central shaft 5 connected with electric drive. Secured on end of central shaft is cutting tool 6. Hollow shaft 4 is rigidly secured in cylinder 3 over diagonal. Intermediate chamber has support bearings and sealing arrangements. Cylinder is fixed in position by means of screw 10 and bushing 5. Electric drill is used as electric drive. EFFECT: enlarged operating capabilities. 2 cl, 1 dwg
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|---|---|---|---|
| 0 |
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