American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 94
lerseparately, considering that of the wheel andpallet first. To find the exact proportion of the size ofthe pallet to that of the wheel, and the exactdistance of the wheel from the pallet, first fixupon any size wheel, and increase its dimen- AMERICAN HOROLOGICAL JOURNAL. 85 sions ten or fifteen… … wueel Has i m cms case 15; mast be known ;the pallets are to span 21 teeth of the wheel;this will then farm an arc of 60°; as 3G0°, thewhole circumference of the wheel, divided by15, the number of wheel teeth, equals 21°, thedistance from one tooth to another, thisquotient multiplied by 1\, the…
Clocks and watches
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