FIELD: mechanical engineering. SUBSTANCE: device has stops 19 and 20 engageable with hook 17 of gate 3, and rotary rocker 14 fastened to axle 15. A counterweight is located on one end of rocker 14, and latch 8 with a lock is located on the other end. Rotatable rod 10 has stops 12 in the form of levers. Two levers engage with gate 3, and one - with rocker 14. EFFECT: improved structure. 3 dwg
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Authors
Dates
1994-01-30—Published
1990-11-20—Filed