Hood, Grant · Kansas City, Mo. : Kansas City Jeweler and Optician · leaf 212
g small, this counteracts the extra power ofthe fully wound spring. When the spring is nearly rundown, the chain is puling on the largest part of the fusee,and consequently exerts more power; so when a fusee isproperly graduated, the force of the main spring is trans-mitted to the train of the… … Fig. 2. being the case, the isochronal adjustment can be easilyaccomplished. Fig 2 shows a general view of a marine chronometer.The chain is nearly all wound around the barrel, showing 205 MODERN METHODS IN HOROLOGY. it is about run down. The balance and the cylindricalspring are seen above the top…
Clocks and watches
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