American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 279
ameter of 46 m.; its height is also7.2 m., the height of fusee 3.8 m., and that ofbarrel 3.9 m.The height of frame being equal in both cases,it will be evident that there is a considerableadvantage in the arrangement I propose:— 270 AMERICAN HOROLOGICAL JOURNAL. Breadth ofSpring. 3.9 m.2.65 m.… … the fusee results in a percental gain in theheight of fusee, of 18.74 per cent., and in thebreadth of spring, of 47.17 per cent. This latter is an increase of nearly one-half,and I think it may be considered a most es-sential improvemement of the fusee move-ment. From the following description…
Clocks and watches
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