Tremeschini G. A
Contenu
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Nom
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Tremeschini G. A
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Couverture temporelle
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mid-late 19th century
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Biographie
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An engineer, G. A. Tremeschini lived in the commune of Les Lilas, close to Paris. In 1863 he obtained a patent for an application of gearing to machines in general and particularly to chronometers (16 November) and another 4 May 1867, for a ‘’sidereal meridian’ which enabled both sidereal and mean time to be found throughout the night. Thence he turned to astronomy publishing his machine for teaching cosmography in 1868, and five papers on sun-spots, an aurora borealis and a meteor between 1869 and 1871. By this time he had established his independent business as an 'ingénieur-constructeur'. In 1873 a report on his telegraph regulator included the information that ‘M. [L.-C.] Breguet has purchased Mr Tremeschini’s apparatus and intends to use it on the new [telegraphic] lines of the railway companies’. Five years later he developed a mono-metallic thermometer (1). Such new interests however did not prevent him from further developing his ideas on astronomical education, and in the early 1880s producing a pyrometer: ‘simple, compact, and easy to manage, and its indications appear to be correct up to 8000°C’. The following year an article in which Tremeschini discussed the question of whether God has a defined shape led him into controversy with the noted spiritualist H. D. Blavatsky.
He won awards in the exhibitions of 1844 and 1852. He took out a patent in 1863 for a new system of gearing particularly applicable to chronometers, and in 1867 another for a 'Régulateur chronomètrique stellaire, au méridienne sidérale donnant à tout moment de la nuit l'heure en temps sidéral et en temps moyen'. This was a sophisticated form of nocturnal which cost 5 francs (2).
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Notes biographiques
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1. this was made by Lion fils. See a description of it in the Revue Chronométrique, ix 1876-77, 345-47.
2. Alleaume 106, 120-1. An example of the nocturnal was held in the Time Museum, Rockford (Illinois), See TIM Catalogue iv,2 lot 807. Advertisement in Claudius Saunier, Almanach-Annuaire…des horlogers…, xi 1869, 138. See also an example in Tesseract catalogue 113, n° 4
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Bibliographie
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Description et manière de se servir de l'apppareil cosmographique à l'usage de l'enseignement populaire construit par…, Paris 1868
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Adresse ; enseigne ; période ; source
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1870: Passage Feuillat, Paris
Les Lilas
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Exposition année ; ville ; type ; récompense
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1867 Paris Universal
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Identifiant
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582
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ark:/18469/1qds2