American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 153
: 1st. Those appliances for compensationwhich produce their effect through the hair-spring alone. 2d. Such arrangements as • depend whollyupon the construction of, and action upon, thebalance itself; that is, those balances whichcarry their own compensation. 3d. Such as combine both action upon… … 1726, he describes what in his provincialismhe calls a kirb. Fig. 1shows the principal partsof his arrangement. A re-presents the plate of thewatch, B a plain balance,C the balance spring, Da compound bar of steeland brass strips pinnedtogether, Gr g a doublecock to which the compensating bar…
Clocks and watches
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