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Nom
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Hanin, Guillaume Emanuel
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Couverture temporelle
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late 18th - early 19th century
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Couverture spatiale
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Paris
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Biographie
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A close relation of Paul Hanin (qv), Guillaume Emanuel Hanin may have been established in Paris from shortly before the Revolution and it is probably to him that the innovations of this period should be ascribed. With the introduction of decimalisation he devised a number of direct reading convertors between the old and new systems. A dial offering a simple conversion between duo-decimal and decimal hours and minutes by Hanin was printed at the end of the Calendrier de la République française... issued by the Imprimerie Nationale an II [1793/4]1 , and on 5 ventose an II [23 February 1794] he submitted a decimal watch in the national competition for decimal timepieces that had been launched the 8 Frimaire an II [28 November 1793].2 On 7 Ventose II (1 March 1794) he presented to the Comité d'Instruction Publique a printed convertor for finding the equivalent of the grave in various old measures without calculation.3 Definitely attributable to him is a 'compas métromètre', a combined pair of divders and linear convertor between metres, the old pied-de-Roy, the English foot, the Rhineland foot, the Castile foot, Brussels foot and that of St Petersburg (but this is neither engraved nor divided).4 In 1805, he was member of the commission that reported on a new form of steelyard devised by Fourché (qv.) for the Société des Inventions et Découvertes, of which society he was the secretary, and. would become president in 1810 (5). At the 1806 exhibition he was 'honourably mentioned' for his spring-balances with dials of various dimensions, the citation reading 'M. Hanin a beaucoup perfectionne les pesons à ressort; ils sont aujourd'hui généralement en usage; et comme les cadrans portent en même temps les nouveaux et les anciens poids, leur usage facilite les opérations du commerce et propage la connaissance des nouveaux poids.' (t6). He wasa member of the thenée des Arts (7).
5 Rapport…, 1805, 23.
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Notes biographiques
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1 Illustrated in Cardinal 64
2 Ibid, 71.
3 A. N. F12/1298
4 Certificat de déclaration d'invention, 15 Frimaire AN 3 [15 December 1794] reproduced and transcribed in Pommier. who illustrates and describes the only known example of the instrument. See also Sotheby's 28 October 1998 lot 162.
5. Rapport 1805, 23; CDD 50.
6 Rapport…, 1806, 125.
7. CDD 50.
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Bibliographie
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[Co-author]. Rapport fait à la Société des Inventions et Découvertes le 7 Germinal an treize, Sur un Romaine à queue oscillante inventée et exécutée par M. Fourché, Balancier, rue de la Ferronerie à Paris, 1805.
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Adresse ; enseigne ; période ; source
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Neuve Notre Dame Paris Tablettes
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Neuve Notre Dame, 11 Paris Rapport
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March Paris Au Magasin de Romains Certificat de Declaration, Pommier 524
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March Paris Au Magasin de Romains Lettre, AN F12/1298
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d'Enfer, 19 Paris Parfait Indicateur, 1831
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Neuve Notre Dame, 23 Paris Almanach du Commerce, 1806; 1810 (CDD 50).
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Exposition année ; ville ; type ; récompense
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1806 Paris National Mention honorable
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Identifiant
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725
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ark:/18469/1q472