Image
Category
Collection
Object type
Maker
Place of origin
Date

Sound Gate

Early experimental electromagnetic recording mechanism for discs. Unsuccessful experiment in electrical recording. Arthur Kingston.

experimental electromagnetic recording mechanism for discs

1909-

Two ratchet wheels with indicator dials driven by electromagnets. Contact breakers in camera and gramaphone connected via 12v accumulator. Rocker on-off switch. Made by Arthur Kingston for Charles Pathe. 1908.

Pathe sound synchroniser

1908-

Mechanical drive from projector, connects through slipping clutch and worm drive rotating outer disc with synchronising mark. Electromagnetically operated ratchet driven inner wheel fed with pulses from battery and contact breaker in gramophone. Outer disc carries three slip rings with contacts connected to projector motor and resistance. Constructed by Arthur Kingston for Charles Pathe. 1908

Pathe sound synchroniser

1908-

Large diameter sprocket wheel with independently rotating toothed edges, one with flywheel. Photocell (missing) fittted inside sprocket wheel with slot for blight transmission. Idlers and jockey wheel. Lamphouse with fitting for SBC type lamp. Screw position adjustment. Optical system for projecting slit image onto film track by Taylor Hobson. For early sound system. Possibly experimental.

Sound Head for 35mm Film Projector

Argon gas discharge lamp for varaiable density sound recording system.

Argon Gas Discharge Lamp

Accessory mechanism for attachment to silent projector. Two continuous sprockets, one with sprung idler, feeding continuous roller with two rubber tyred pressure wheels. Gate with slot. Condenser lens on one side with tube and photocell etc the other. Take up arm without spindle. Large flywheel. Probably experimental and made from a projector mechanism

Early sound head mecahnism for film projector