Category: Geradfhrungen (Straight-line mechanism)
Description: Kreuzlenker (Cross guide) and Zwischenlenker (Between guide)
Biographical
Information:
Though spelled differently in the Voigt catalog, Reuleaux was referring to the Russian mathematician Pafnuty (Pafnuti) Lvovich Chebyshev[1] (1821-1894). Chebyshev was born in a small town in western Russia, the son of a retired military officer, Lev Pavlovich. The Chebyshev family, which included nine children, lived in a small family estate in an upper-class area in the town of Okatovo. Chebyshev was educated at home, receiving lessons in reading, writing, French and arithmetic from his mother and his cousin, but unlike his brothers, Pafnuty could not follow his father and have a career in the military due to one leg being longer than the other.
In 1832, the Chebyshev family moved to Moscow, and Pafnuty continued to be schooled at home, though he now received mathematical tutoring from P. Pogorelski, the best tutor in Moscow. Five years later, at the age of sixteen, Pafnuty entered Moscow University. One of the most influential of Chebyshevs professors at the university was Nikolai Brashman who taught Chebyshev mechanics, mechanical engineering, hydraulics, integration, probability and other types of applied mathematics. After receiving a degree in mathematics, Chebyshev continued at Moscow University under the supervision of Brashman to receive a Masters degree. He was appointed to the University of St. Petersburg in 1847, received his doctorate two years later, and was made extraordinary professor at St. Petersburg the following year. In 1852 Chebyshev made a trip to France, England, and Germany where he had the chance to investigate various steam engines and their mechanics in practice, which became an influential part of his theory of mechanisms.
Some of the work that came out of this trip was the paper Thorie des mcanismes connus sous le nom de paralllogrammes published in 1854; the calculation of geometric volumes, and the construction of calculating machines; the investigation and contribution to the theory of the best approximation of functions; and the study of the problems involved in converting rotary motion into rectilinear motion by mechanical coupling. Soon after the trip, Chebyshev developed the three bar linkage that approximated rectilinear (parallel) motion and he wrote many papers on his mechanical inventions. In 1893 several of his mechanical devices were exhibited at the World's Exposition in Chicago, including his invention of a special bicycle for women.
Most of Chebyshevs life was devoted to his work: he taught and performed research at St. Petersburg University until 1882; he joined the St. Petersburg Academy of Sciences in 1853 and was a member of the Socit Royale des Sciences of Lige, the Socit Philomathique, the Berlin Academy of Sciences, the Bologna Academy, the Royal Society of London, the Italian Royal Academy, the Swedish Academy of Sciences, and the Institut de France. He also received honorary positions and titles at several different universities, and he was awarded the French Lgion d'Honneur. Though he never married, Chebyshev also had a daughter that he never officially acknowledged as his own.
Sources for Further Information on Chebyshev:
Items Owned by Cornell Library:
1. Author: Chebyshev, P. L.
Title: Izbrannye matematicheskie trudy.
Published: Moskva, OGIZ, Gos. izd. tekhniko-teoreticheskoi literatury, 1946
Description: 199, [1] p. port. 20 cm
Location: Mathematics Library (Malott Hall)
Call Number: QA3.C51 I9
2. Author: Chebyshev, P. L.
Uniform Title: Works. 1962
Title: Oeuvres de P. L. Tchebychef. Publies par les soins de A. Markoff et N. Sonin
Published: New York, Chelsea Pub. Co. [1962?]
Description: 2 v. illus. 22 cm
Location: Mathematics Library (Malott Hall)
Call Number: QA3 .C51 1962
3. Author: Chebyshev, P. L.
Title: Polnoe sobranie sochinenii
Published: Moskva, 1944-51.
Description: 5 v. port., diagrs., tables. 27 cm
Location: Mathematics Library (Malott Hall)
Call Number: QA3 .C51 1944
4. Author: Chebyshev, P. L.
Title: Theorie der Congruenzen (Elemente der Zahlentheorie) von P. L. Tschebyscheff. Deutsch mit Autorisation des Verfassers, herausgegeben von dr. Hermann Schapira.
Published: Berlin, Mayer & Mller, 1889
Description: xvii, [1], 313, [1], 31, [1], p. incl. tables. 22 cm.
Location: Mathematics Library (Malott Hall)
Call Number: QA241 .C51 1889
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