Sheets, Translations of Letters from the Société Genèvoise
date: label: date made
content: 1910-1911
name: label: maker
content: Carnegie Institution of Washington. Department of Terrestrial Magnetism
label: maker
content: Societe Genevoise d’Instruments de Physique
notes: label: Description
content: This is a draft of a translation of letters from the "Geneva Society" of February 2, 1910 and December 6, 1911. Revisions are marked in red.
label: Description
content: The correspondence relates to a circular dividing engine with museum number 1987.0036.01. (catalog number 328270). The translated extract of a message of February 2, 1910, discusses such topics as the power of the motor required to run the machine (1/10 horseposer), the proper speed of rotation (3-4 revolutions per minute), and the need to vary the speed according to the fineness of the graduation required. The message of December 6, 1911, indicates that the engive was shipped on November 30, 1911, and describes the tests of it made by the manufacturer and properprocedures of use.
label: Description
content: This correspondence relates to the dividing engine with number MA.328870. Documentation relating to the machine has numbers 1987.0036.02 through 1987.0036.16.
label: Location
content: Currently not on view
place: label: place made
content: United States: District of Columbia, Washington
topic: label: Subject
content: Mathematics
label: Subject
content: Ruling and Dividing Engines
setName: label: See more items in
content: Medicine and Science: Mathematics
creditLine: label: Credit Line
content: Gift of the Carnegie Institution of Washington, Department of Terrestrial Magnetism
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1987.0036.02
label: accession number
content: 1987.0036
label: catalog number
content: 1987.0036.02
objectType: label: Object Name
content: Sheets, Set Of
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 21.5 cm x 27.8 cm; 8 15/32 in x 10 15/16 in