American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 116
m, that this was a strangedefect in rate; but, on after thought, I foundit according to known laws, and not so verymysterious. The changes of temperatureaffected the rigidity of the metal, and enlarg-ed or contracted this damaging curve. Thevery slight effects of temperature on thetrain, in the… … justments. I here give you the design of thependulum. I have made a new arc of ivory,and am about placing a cupupon the weight in orderto add shot or other smallweights in order to keep upregularity of pendulumspring, as occasion mayrequire. When, however,the arc of vibration shouldbe lessened…
Clocks and watches
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