Auckland Museum - Collections Online

Predicate Object 21 May 2004 2004-05-21T00:00:00.000Z 2004-05-21T00:00:00.000Z 2004.44.56 Collection of Auckland Museum Tamaki Paenga Hira, 2004.44.56 1997-04-01T00:00:00.000Z 1 2020-12-18T09:35:22.866Z Collections Hub 45 Set of 24 turning arbors in wooden box 24 brass and steel arbors, circular discs with central pointed steel rod. Inside wooden box, with metal clasp. An article with a hole in in was mounted firmly on the tapered part of the arbor. The arbor was mounted between the points of the turns, and the arbor and work were revolved forwards and backwards by a bow. Watchmakers' turns are a simple type of lathe. The work was mounted between points and revolved forwards and backwards by a bow, which had a thread (usually a horsehair) wrapped around a collet or small pulley attached to the work. The turning tool (graver) was held against a T rest as in a woodturning lathe. The sharpened tip of the graver was applied to the work at the correct angle and cut only on the downstroke of the bow, when the work was revolving towards the operator. Later, with the advent of electricity, a small electric motor was used to drive a small lathe, which held the work in a collet or chuck, and cutting was continuous, rendering the turns largely obsolete. Turning arbors
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