HERRMANN, Gustav.

Zur graphischen Statik der Maschinengetriebe. Ein Leitfaden zum Gebrauche für Maschinentechniker, Baumeister und Ingenieure sowie zum Unterrichte an technischen Lehranstalten.

vi, [2], 74 pp. Large 4to, modern morocco-backed marbled boards [with]: Atlas. Eight lithographedplates. 2 p.l. (half-title & title). Large 4to, binding as above. Two vols. Braunschweig: F. Vieweg & Son, 1879. First edition. Herrmann (1836-1907), professor of mechanical technology and industrial engineering at the University of Aachen, was a member of engineering societies in both Germany and the United States. “Herrmann’s essential work on the graphic handling of kinematic problems of machine elements through the use of vector polygons. The work itself is divided into chapters on: degree of work of the driving-gear of a machine, equilibrium of the driving gear, sliding friction, friction at a pivot, rolling friction, friction to a chain, rigidity of ropes, friction on toothed gears, concluding with an example.”–Roberts & Trent, Bibliotheca Mechanica, p. 162. Nice set. Perforation stamp of the Franklin Institute Library on title of text volume and half-title of atlas. Ex Bibliotheca Mechanica.

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