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Henri Buffet
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Diaphragms For Electromechanical Transducers
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Abstract
3715. Buffet, H. Feb. 14. Sound - boxes; styli; resonators. - The diaphragm in a talking-machine sound-box is replaced by a conical or round mass A of wood or metal, such as ash, cedar, and pine, or silver, bronze, and brass, or even glass, bone, and ivory, which is provided with a stylus B. The mass weighs up to about 225 grammes, and may be held by the hand or be traversed over the record from an horizontally-supported bar D. A sounding-board F may also be used to reinforce the sound reproduction. Small wings E of nickel may be added to the mass to reduce the grating sound of the stylus on the record.
GB191103715D1911-02-141911-02-14Improvements in and relating to Talking Machines.
ExpiredGB191103715A
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