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Most Important Clock in America: The David Rittenhouse Astronomical Musical Clock at Drexel University Transactions, American Philosophical Society ... of the American Philosophical Society) 🔍
Ronald R. Hoppes The American Philosophical Society Press, Transactions of the American Philosophical Society : held at Philadelphia for promoting useful knowledge, vol. 99, pt. 2, Philadelphia, 2009
英语 [en] · PDF · 6.6MB · 2009 · 📗 未知类型的图书 · 🚀/ia · Save
描述
During the years of 1767-1770 David Rittenhouse designed and produced two orreries, one for Princeton Univ. and one for the Univ. of PA. During the last two years of this interval he also produced two 30-day musical tall-cased clocks. The first clock, built in 1769, is currently owned by the PA Hospital. The following year (1770) Rittenhouse made a second tall-case musical clock, which was more elaborate than the first. This clock, currently owned by Drexel Univ., is a very good example of Rittenhouses work as it has experienced only minor changes over the years. This was the masterpiece of his clock-making career and is a national historical treasure. Here is a detailed analysis of the various gears in the clock. 100+ drawings and full-color photos.
备选标题
The most important clock in America : the David Rittenhouse astronomical musical clock at Drexel University
备选作者
Hoppes, Ronald R, 1935-
备用出版商
Philadelphia: American Philosophical Society
备用版本
Transactions of the American Philosophical Society, 2nd enhanced edition, Philadelphia, 2009
备用版本
Transactions series -- v. 99, pt. 2, Philadelphia, Pennsylvania, 2009
备用版本
United States, United States of America
元数据中的注释
obscured text on back cover page inherent from the source.
元数据中的注释
Includes bibliographical references and index.
备用描述
xvi, 99 p. : 26 cm
Includes bibliographical references and index
The dial -- The left hand side of dial -- The sun - moon dial -- Repeat and strike selector -- Moon elliptic orbit and node indicator -- Right hand side of dial -- Equation-of-time indicator -- Manual tune play -- Tune play interval selector -- Tune repeat selector -- Tune indicator -- The top of the dial -- The orrery -- The center of the dial -- Date aperture -- The moon dial -- The calendar dial -- The gear trains -- Time train gearing -- Music train gearing -- Strike train gearing -- Hammer strikes per 12 hours -- Gearing on the front of movement -- Movement front plate gearing -- The dial gear trains -- The calendar hand -- Analysis of the gear train -- Equation-of-time indicator -- The analysis -- The mechanism -- The strike operation -- The manual repeat and warning phase -- Counting the strikes -- Controlling the bell hammers -- The music train -- The trip sequence -- Tune change gearing -- Music drum adjustments -- Setting the dial indications -- Preparation -- The calendar hand -- The equation-of-time dial -- The orrery planets -- The sun-moon dial -- The moon ecliptic node indicator dial -- The lunar dial -- Restarting the clock
开源日期
2023-06-28
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