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GB190803077A Expired / Lapsed GB ⏱️ 0.0 years remaining

Improvements in or relating to Phonographs, Gramophones and the like.

Assignee: INTERNAT TALKING MACHINE COMPA
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Filing: 1908-02-11
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Granted: 1908-11-05
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Expires: 1928-02-11
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Abstract

Abstract 3077. International Talking Machine Co., and Gloetzner, R. A. Feb. 11. Gramophones &c.-The stylus holder is mounted on a Z-shaped spring made in one piece of tempered steel about 16-thousandths of an inch thick. The middle part a has an opening for fastening the holder b by a screw or rivet, or by soldering. Lugs a', a<2> have holes for tension screws c<1>, c<2> for attachment to the sound-box c, and the lugs are bent so that only a very small part of the spring bears against the inner sides of the screw-heads. lndentations may be provided for balls d, or suitable pivots or knife-edges may be employed between the spring plate and the sound-box. Only the central part a vibrates when small tonal effects are being recorded or reproduced, but with louder effects, the oscillation extends to the whole spring.

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Bibliographic Details

Application Number —
Jurisdiction GB
Data Source google_patents
Last Synchronized 2026-10-22 22:09
CPC Classifications
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