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20585 GYRALITE - Mechanisms

Vertical 20585

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Horizontal 20585 mechanism in a flanged case. The door was off a vertical unit - as evidenced by the visor screw holes.

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Vertical Mechanism (Right)

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Vertical Mechanism (Left)

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Horizontal Mechanism (Top)

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Horizontal Mechanism (Bottom)

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Vertical 20585 and Horizontal 20585 - showing the linkage that produces the oscillating beam for each
Notice attachment of slide bearing bolt on frame as well as length of the slide in which the slide bearing rides on each.
Verticle 20585: belt length = 11" Gearbox pulley = 2" diameter
Horizontal 20585: belt length = 13" (pulley displaced from centerline axis of bulbs) Gearbox pulley = 2-1/4" diameter
Pulley diameter is largest diameter of the pulley. Belt width for both = 3/8".
The dimensions from the center of the slide bearing bolt to the edge of the frame are illustrated for each mechanism.

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Universal Bearing - pivot for bulb plate