American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 205
orm the clickat the acting endof the spring, butthe click andspring are muchexposed to break,and in such a casethe replacing ofthe piece wouldbe a greatertrouble (Figs. 6and 7). 39. The mate-rial of which theclick-work oughtto be made ishardened andwell temperedsteel, at least forthe ratchet… … AMERICAN HOROLOGICAL JOURNAL. 197 CHAPTER IV. THE STOP-WOBK. 40. The last of the accessories of themoving power is the mechanism regulatingthe amount of tension to apply to the springin winding it, and the range of developmentof this latter to be employed for the dailymarch of the watch. This part,…
Clocks and watches
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