American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 118
go toestablish. AMERICAN HOROLOGICAL JOURNAL. Ill A New Gravity Escapement. Editob Hobological Joubnal : Notwithstanding the great variety of formswhich have been given to the gravity escape-ment since the days of Hardy and Berthaud,the changes seem by no means exhausted.The principle of using a… … tion of many of the first scientific men of ourage, for whom an ordinary piece of mechan-ism would have no charm. During a recent visit to New Hampshire, Isaw running at the Ohservatory of Dart-mouth College, a clock with a gravity escape-ment, the invention of Prof. Chas. A. Young,whose name is…
Clocks and watches
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