TECHNICAL DEVELOPMENT

T E C H N I C A L D E V E L O P M E N T : P R O J E C T O R S

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The Maltese Cross was a popular mechanism for early projectors, and remains so to this day. A pin G on the continuously-turning cam A enters one of the slots E, and as it turns, revolves the maltese cross D which is attached to the sprocket F. The sprocket makes a quarter-turn. The teeth on the sprocket pull the film down one picture height.
Lumière Pathé projector
c.1905
This mechanism has a claw movement, and is derived from the original Lumiere machine

New Brewstergraph projector, c.1912
The lens for slide projection can be seen to the rear of the
mechanism. All-steel model available at sixty guineas.
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