San Francisco : Architect and Engineer, Inc · leaf 363
A) Worm geardrives cogs on tilt-ing device whencord is pulled. Pins at end of top rail Rt intoopenings. (C) Sheave pulley---prevents cordslipping. The New WORM GEAR … (D) Tilling device cannot shiftexcept upon operating pulleywith cord■•-slats cannot shiftposition ■-• gear ratio enablesoperator to easily place slatsat exact angle required. (E) Shows installation afterlop rail is connected withtilting device. TILT
Architecture · Building
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