Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 50
le points. The method of holding and adjusting INSTRUMENTS AND MATERIALS 37 the spring bow dividers is essentially the same as that forthe bow pen and bow pencil. The fine adjustment providedon the spring bow dividers makes them particularly adaptedfor making divisions requiring a fair degree of… … Fig. 10. Different Kinds of Dividers sible to the length of one of the required spaces, by eitherestimate or scale measurement, the line or circle should bespaced off by a trial division. The spacing should be donein the usual way, except that the points of the instrumentshould not be pressed into…
Mechanical drawing
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