American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 280
ference of pressure in the two cases is inthe ratio of the pressure, the advantage tobe attained by this modification, is consider-able, though it must be remembered that thedifference of pressure in the two cases isgreatest when the chain acts at the bottomof the fusee, and diminishes towards the… … It is surprising that this arrangement, theadvantage of which is beyond any doubt, andwhich is due to Julian Leroy, has not foundany followers in England, the country of thefusee movement. It has been employed somuch the more by French and Germanmakers. i ALLOYS OF GOLD. In the preceding article it…
Clocks and watches
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