FIELD: construction.
SUBSTANCE: invention can be used in laying and repairing of pipelines of different applications. Proposed soft sling is designed for lifting, shifting and laying of insulated pipeline by load - lifting device into trench. Load-lifting device is furnished with crossmember. Soft sling has flexible line made of flat multiple-layer tape of constant width and thickness whose ends are connected with overlapping to form lock and are fixed at preset length in middle of flexible line sewn by load-bearing longitudinal seams to form eyes at ends. Multiple layer tape of flexible line is provided with inner layer of nonwoven synthetic material, being formed by technical cloth web folded in several layers with arrangement of longitudinal edges of web inside multiple layer tape of flexible line impregnated with polymeric resin. Version of soft sling providing cross rigidity of sling branches to prevent biting of bar of load-lifting device crossmember are described in inventions.
EFFECT: improved reliability of mounting on weighter on pipeline.
10 cl, 3 dwg
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Authors
Dates
2006-06-27—Published
2005-07-18—Filed