International photographer (Feb-Dec 1929)

Record Details:

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June, 1929 The INTERNATIONAL PHOTOGRAPHER Eleven Bell & Howell precision and accuracy have silenced the camera mechanism! BELL & HOWELL engineering has produced cameras for sound work with all mechanical noises eliminated. Fiber gears — solid bronze bearings — sound'absorbingfelt linings — the removal of all lost motion — these are the factors in this important development. Sound 'Proof Magazines with endless fabric belts and silent belt tighteners also contribute to the perfection of oper' ation that permits such equipment to be placed within eight or ten feet of the microphone without requiring a camera booth! Holes drilled in the back and cover of the magazine drums to interrupt sound waves, and the outside covering of sponge rubber indicate the thoroughness of the engineering that has made such a devel' opment possible. Consultations are invited on Sound Recording Installations. Above: B. &• H. 100-ft. Sound-Proof Magazine equipped with Silent Belt Tightener, that keeps uniform tension at all times, and endless fabric belt. Right: Silent Belt Tightener on B. &• H. 400-ft. Magazine. 1. Endless fabric belt. Left: 1000-fl. Sound-Proof Magazine taken down — /. Holes drilled in back of Magazine drums — 2. Front on Magazine with rubber cover removed — 3. 3-inch spool — 4. Rubber outer-cover — 5. Film Roller — 6. Oilless bearing of film roller. Right: Speed movement of B. & H . Camera equipped for sound work — /. Check pawl Super-Speed movement — 2. Felt lining of camera door — 3. Endless fabric bell — 4. Belt tightener. Above: B. &■ H. check pawl SuperSpeed movement — /. Driving finger — 2. Formica (fiber) gear. BELL & HOWELL CO. Dept. F, 1851 Larchmont Ave., Chicago, Illinois New York, 11 West 42nd Street • • • Hollywood, 6324 Santa Monica Blvd. London (B. & H. Co., Ltd.), 320 Regent Street Established 1907