American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 252
t makes the pillar too heavy; hencethe desirability of using a pattern somethinglike A. Pillars are usually made of cast brass.A pattern is turned from wood, and a littlelarger in every respect than the pillar is desiredto be. If there is to be any ornament put onthe pillar, it is never made on the… … casting. After the casting is received the firstthing to be done is to hammer the brass, andthen centre the holes, because it will be seenfrom the diagram that there are holes forscrews at each end of the pillar. Holes ofabout 00.20 of an inch are then bored in theends of the pillars, and should be…
Clocks and watches
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