FIELD: transport engineering. SUBSTANCE: eyelet is a current conducting semi-tube curved according to dimensions of contacting part of a string ring. Semi-tube is provided with a tongue lock forming a solid block with semi-tube. Tongue lock is positioned in the center of semi-tube inner surface for its placing and fastening in a groove by means of squeezing semi-tube with flat-nosed pliers with hollows in squeezing jaws. In the process of eyelets mounting string rings bear loading safely and contact with each other in "ring to ring" or "ring to lock" chains of electromagnetic coupling. Due to it the main cable of a ring is protected from abrasion. EFFECT: enhanced efficiency. 10 dwg
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