Pattern making; a practical treatise for the pattern maker on wood-working and wood turning, tools and equipment, construction of simple and complicated patterns, modern molding machines and molding practice (1916)
Ritchey, James, Monroe, Walter W. (Walter William), b. 1869 · Chicago, American technical society · leaf 45
Fig. 63. Common Wing Dividers Fig. 64. Removable-Point Dividers clamped by the thumbscrew, it is not liable to be altered by a slightblow in handling. Another and improved form is shown in Fig. G4, one leg ofwhich is removable so that a pencil can be inserted. This willbe found very convenient for…
Patternmaking
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