Georges Mendel
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Georges Mendel was the inventor of several devices related to gramophones and cinema:
- A device to synchronize a cine presentation with sound from a gramophone. His first patent[1] was filed in 1906. A subsequent patent describes the application of (presumably) the same device to a gramophone and cinematograph.[2]
- An air valve, which was to release compressed air in response to the vibrations of a gramophone or phonograph record, and thus serve as a loudspeaker.[3]
- A cine projector with hand-cranked film transport and electric lamp (powered by a hand- or foot-driven magneto). The patent specifies that the lamp housing can be shifted up, down or sideways to recentre the projected image as desired during the projection.[4]
In some of the patents, Mendel described himself as a 'photographic apparatus manufacturer':[5] it is likely that the company also made some view cameras for still photography. It was based in Paris, at 10bis, Boulevard Bonne-Nouvelle.
Notes
- ↑ At least, the first listed at Espacenet, the European Patent Office's patent search database, Spanish Patent 38157, Un aparato de sincronismo, granted 16 May 1906: Espacenet only has bibliographic details of this patent, none of the text.
- ↑ French Patent 370449, Régulateur distributeur automatique d'énergie électrique pour mobiles synchrones (Automatic distributor/regulator of electric power for synchronised drives). There are several related patents filed in other countries, and later French ones.
- ↑ French Patent 373539, Dispositif de parleur à air comprimé (Compressed air loudspeaker device), filed 11 January 1907 and granted 17 May 1907.
- ↑ French Patent 450437, Groupe cinématographique électrique (Electric cinematic group), filed 11 November 1912 and granted 25 March 1913.
- ↑ British Patent 8808 of 1907, Improvements in or relating to phonograph and like apparatus (the British patent for the compressed-air loudspeaker).
