Counter, Deschiens Compteur
date: label: date made
content: ca 1876
name: label: maker
content: Deschiens, Eugene
notes: label: Description
content: Counting the number of revolutions of a shaft allowed steamship owners to gauge the distance between ports, helped gas companies measure the quantity of their product sold, and aided engineers seeking to determine when a steam pump would require fuel. Combined with a watch, revolution counters allowed one to measure the velocity of any number of machines.
label: Description
content: Eugène Deschiens, whose business was active in Paris from 1866 until 1894, was an eminent manufacturer of revolution counters and velocity meters (known also as tachometers). An 1884 article on tachometers reported that his instrument was “so well known we need not describe it.” His devices won prizes at national and international exhibitions. They were used on ships of both the French and the British navies, as well as by a range of other manufacturers.
label: Description
content: This small cylindrical instrument has brass sides, a glass top, and a metal bottom painted black. Under the glass are five windows, which show digits. Steel or German silver rods extend from opposite sides of the cylinder. A section of the case contains eight steel pieces that may be used to turn these rods and hence cause the counter to count. One of these has an ivory handle. The pieces are in different shapes, so that they will link to different mechanisms.
label: Description
content: A mark inside the glass top read: COMPTEUR (/) SYSTÈME BREVETÉ S.G.D.G. (/) No 701. Another in the same location reads: E. Deschiens (/) Constructeur (/) PARIS.
label: Description
content: The wooden case is lined with satin and velvet and partly covered with leather. A mark on the lining of the lid reads: MÉDAILLES de MERITE VIENNE 1873 (/) OR, PLATINE & ARGENT PARIS 1875 (/) MÉCANIQUE de PRÉCISION (/) TÉLÉGRAPHIE & HOROLOGERIE (/) ÉLECTRIQUES (/) E. DESCHIENS (/) 123 Boulevard St Michel (/) PARIS.
label: Description
content: References:
label: Description
content: E. Deschiens, <I>Compteur Totalisateur</I>, [ca 1875]. This is a trade catalog.
label: Description
content: J. E. Deschiens, “Système de compteur à mouvement alternatif ou à piston, dit: Compteur de poche,” Brevet d’invention 159,294, December 20, 1883. A copy is at: http://www.ami19.org/BrevetsFrancais/1883Deschiens/1883Deschiens.pdf.
label: Description
content: “Compteur totalisateur de M. E. Deschiens,” <I>Les Mondes</I>, 32 #9, October 30, 1873, pp. 373–374.
label: Description
content: “A New Tachometer,” <I>Scientific American Supplement</I>, 18, November 1, 1884, p. 7358.
label: Description
content: J. Laffargue, “Les Compteurs et Indicateurs de Nombre de Tours,” <I>La Nature</I>, 22, December 2, 1893, pp. 45–46.
label: Description
content: <I>L’Industrie Française des Instruments de Précision</I>, Paris: Syndicat des Constructeurs en Instruments d’Optique & de Précision</I>, 1902. pp. 74–77. This is an advertisement by Deschiens’s successor, Alph. Darras.
label: Location
content: Currently not on view
place: label: place made
content: France: Île-de-France, Paris
topic: label: Subject
content: Mathematics
label: Subject
content: Steamships
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Counters
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Mrs. Russell Munroe
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.314905
label: catalog number
content: 314905
label: accession number
content: 212171
objectType: label: Object Name
content: counter
physicalDescription: label: Physical Description
content: steel (overall material)
label: Physical Description
content: brass (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: velvet (overall material)
label: Physical Description
content: silk (overall material)
label: Physical Description
content: ivory (overall material)
label: Measurements
content: overall: 4 cm x 9.5 cm x 8 cm; 1 9/16 in x 3 3/4 in x 3 5/32 in