Richer Jean François
Contenu
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Nom
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Richer Jean François
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Date de naissance
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October 1743
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Date de mort
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Post 1810
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Lieu de naissance
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Suresnes
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Lieu de mort
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Paris
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Couverture temporelle
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4/4 18th century/ 1/4 19th century
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Couverture spatiale
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Paris
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Biographie
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Richer founded his business c.1780 and it was continued by his son and grandson. His earliest known productions, hygrometers, date from 1782. According to a trade label in the box of an instrument dated 1807 (1), Richer had been maker to the Académie des Sciences before the Revolution. In 1783 he developed a mechanical dividing machine for rules which, according to him could be read to 1/1200 part. The 9 April 1788, in the second round of elections, he was named to the newly formed (2) company of instrument-makers, and he was among the artists who received awards for their work from the Bureau de Consultation in the 1790s. This award was in part linked to his development of a straight line dividing engine in 1793 and another machine to divide the line in proportional parts (3). A signatory to the constituant act of the Société des Inventions et Découvertes in 1793 he was also a member of the Point Central des Arts et Métiers (4). He invented a compass for graphically converting spherical to rectilinear triangles for which he received an award from the Académie des Sciences in 1792. He also worked on instruments for the measure of volumes, dilatation of metal and similar problems. During the Revolutionary period he developed several devices useful for minting, a mechanical stamp for numbering the assignats at the same time as they were printed, and a powder mill (5). Richer, for the leading savants of of the period, was a notable maker.
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Notes biographiques
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1 Drulhon 9. 12. 02 lot 65.
2 Daumas 268 following Ms Arch CNAM C.20. Daumas 281 states that Richer was reputed for dividing the scales of thermometers from 1775 onwards using the dividing machine of his invention, but this, also according to Daumas was developed in 1793. Presumably 1775 should be read as 1795.
3 Mascart 543 n. 2. Daumas 370.
4. CDD 43, 54.
5 Daumas 370. For the assignat numbering machine see also Mercier 46-7.
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Adresse ; enseigne ; période ; source
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13 rue de la Cerisaie Paris
27, Rue de la Calande, passage du Boicelier de Marché Neuf, Paris (domicile 1791-92 CDD 54).
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1801-1802: Rue Lomis (au Marais), 585 Paris Almanach du Commerce An X
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1802-05: rue de Turenne, 585, Indivisibilit Paris Almanach du Commerce
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1805-07: rue de Turenne, 43 (45) Paris Almanach du Commerce; instrument dated 1807.
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1808-09: boulevard St. Antoine 61 Paris Almanach du Commerce
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1809 - ?: rue Neuve du Harlay,5 Paris Almanach du Commerce,
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1817-23: 6, rue Harlay au Marais Paris Almanach du Commerce
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Identifiant
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511
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ark:/18469/1qcnc