American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 41
autiously, not hastening, but examiningvery often the condition of his work and cor-recting as he goes along. The piece havingbeen thus reduced to a small slab of stone, ir-regular in form on the edges, it must berounded as near a circle as the eye can judgeand the means allow, which is done by… … Now commences the first operation on thelathe. A chuck is first turned up in the man-ner illustrated by Fig. 2; the neck thereshown is of essential service as it allows theend to be heated by a small flame as the con- duction backwards toward* the lathe is pre-vented in a great measure; the hollow…
Clocks and watches
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