| 摘要 |
FIELD: construction. ^ SUBSTANCE: device comprises ring bath with extruder on its back face which moves along the pipeline. The extruder is made of pyramidal stack of plates which embraces the pipeline and supports positioning them. Each support has head which is in a contact with the plate and shoe which bears on the pipeline and mounted on the spring-loaded slide set in radial guides of the back face of the bath and is provided with bearing rod which carries the head. ^ EFFECT: enhanced quality of covering. ^ 2 dwg |
