45.830XFigure 2-15.-Typical drawing instrument set.45.133XFigure 2-16.-Bow instruments: (A) Bow pen; (B) Bowpencil; (C) Bow dividers; (D) Drop bow pen.DividersDIVIDERS are similar to compasses, exceptthat both legs are provided with needlepoints.The instrument set (fig. 2-15) contains twodifferent types and sizes of dividers: large6-in. hairspring dividers (fig. 2-15A) andsmall center adjustment bow dividers (fig. 2- 15J).The large pivot joint compass (fig. 2-15C)may also be used as dividers. As with compasses,dividers are available in large and smallsizes, and in pivot joint, center adjustmentbow, and side adjustment bow types. Figure 2-16Cshows small side adjustment bow dividers.Pivot joint dividers are used for measurementsof approximately 1 in. or more. For measurementsof less than 1 in., bow dividers should beused. Dividers are used to transfer measurements,2-13
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