FIELD: mining.
SUBSTANCE: device comprises flexible shell provided with face members and filled with the plastic material and metallic strips mounted on the outer surface of the shell. The strips overlap each other, and the ends of the strips are rigidly interconnected to define a tube. The bushings are fit on the both ends of the pipe and are provided with the inner thread. The connecting pipes with adapters for the connection with the hydraulic system are screwed in the bushings. The flexible tube passes through the plastic material and connecting pipes and is pressed to the faces of the connecting pipes by the adapters from both of the ends. The metallic strips that define the internal surface of the pipe are made so that their cross-section is shaped into a circle segment whose arc faces the axis of the device.
EFFECT: enhanced efficiency.
1 cl, 3 dwg
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