American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 230
the other wheels andpinions, because there is a greater strain uponthem than on the others. However reasonablethis idea may seem, a little consideration will6how that in the case of a regulator, with a Graham escapement, where so little motivepower is required to keep it in motion, anarrangement of… … wheel in comparison with the teeth of thethird wheel, for example, then make the greatwhee! itself proportionably thicker, as is usuallydone, according to the extra amount of strainthat it is to bear. The teeth of wheels andthe leaves of pinions wear more from imperfect construction than from any…
Clocks and watches
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