Drawing Instrument or Planigraph by Martin Schilling, No. 352, Ser. 32, No. 5

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Description
In this linkage, three short brass rodss connect a fixed brass rod to a moveable one. The fixed rod is at the center. A drawing pin attached at the lower end of the moving rod describes a plane disc. The pin can trace any curve within the disc.
A paper label on the base reads: Planigraph. (/) 32. Serie, Nr. 6. (/) Verlag v. Martin Schilling, Leipzig.
This instrument was based on discoveries of Professor Gaston Darboux (1842-1917) and on the design of Professor Gabriel Xavier Paul Koenigs (1858-1931), both of Paris. It was part of a series of models by Schilling first published in 1906 and 1908, and marketed as illustrating principles of kinematics and physics.
References:
Gabriel Koenigs, Leçons de Cinématique Professé à la Sorbonne, Paris: Hermann, 1897, pp. 295-297.
M. Schilling, Catalog mathematicher Modelle, Leipzig, 1911, pp. 88, 166-167.
Location
Currently not on view
date made
ca 1910
Physical Description
metal (mechanism material)
wood (base material)
paper (label material)
Measurements
overall: 39 cm x 22.7 cm x 18.7 cm; 15 11/32 in x 8 15/16 in x 7 3/8 in
ID Number
1982.0795.27
catalog number
1982.0795.27
accession number
1982.0795
Credit Line
Gift of the Department of Mathematics, The University of Michigan
subject
Mathematics
Drafting, Engineering
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Single Drawing Instruments
Data Source
National Museum of American History, Kenneth E. Behring Center

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