American horological journal, devoted to practical horology (1869)
Miller, George B · New York, G. B. Miller · leaf 279
t push or by a twist or turn of one partupon another, are cut up into lengths suitablefor the various purposes designed, and the well-known interior curved slits through their lengthare cut by a very ingenious though simple de-vice; for true mechanical ingenuity will producethe desired result by… … a socket, a, fixed by a set screw into the columnwhich supports the hand-rest, with a holedrilled transversely through the head, just be-low the upper surface, and of such size as to AMERICAN HOROLOGICAL JOURNAL. 273 permit the tube, d, to pass easily through. Thetop of this socket is concaved out…
Clocks and watches
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