FIELD: lighting engineering. SUBSTANCE: main cantilever 2 holds additional extensible cantilevers 9 and 11 mounted on it and provided with threaded levers with gripping handles screwed on them for locking on adjacent cantilever. Main and additional cantilevers are provided with guide slots for motion of levers. EFFECT: enhanced reliability. 3 dwg
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Authors
Dates
1994-12-15—Published
1991-02-25—Filed