COCK Russian patent published in 1999 - IPC

FIELD: shutting-off flow of gas or liquid in pipe line. SUBSTANCE: cock has body with inlet and outlet branch pipes and cover. Shut-off member engageable with seat is mounted in body. Shut-off member is connected with spindle. Lower portion of spindle is located in zone of bearing pins of shut-off member and is made in form of rod with two parallel planes. Inserts swinging relative to longitudinal axis of bearing pins are mounted between parallel planes of spindle and bearing pins of shut-off member. EFFECT: enhanced reliability of cock operation. 3 dwg