HOFFMANN, Johann Christian.

Beschreibung und Abbildung einer Wagenwinde von ausserordentlicher Wirksamkeit.

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One folding engraved plate. 20 pp. 4to, cont. speckled boards. Leipzig: G. Fleischer the Younger, 1800. First edition and very rare; OCLC locates no copy in the U.S. Hoffmann (1768-19189), was successively professor of chemistry at Zamosc in Galicia, professor of physics at the Hauptschule in Cracow, and finally professor of economics and technology at the Staatswirthschaftliche Schule at Warsaw. This is a “description and drawing of an unusual lifting jack. In the foreword, Hoffman notes that this jack is related to one described in Bürja’s Grundlehren der Statik (1789) and in Oberländer’s Beschreibung einer neuen ungemein grossen Spinnmaschine... (1795).”–Roberts & Trent, Bibliotheca Mechanica, pp. 163-64. The plate depicts various cross-sections of the jack. Fine copy. Ex Bibliotheca Mechanica. ❧ Poggendorff, I, 1124.

• USD 1,250.00 > Andere Währungen
• Bestellnummer: HillBibl-1573

• Antiquariat: Jonathan A. Hill, Bookseller, Inc. (USA)