Fox, William Paul. [from old catalog] · Chicago, Ill., Fox brothers · leaf 78
FIG. 153Illustration showing the method of testing the 90° angle of a triangle. 7. To draw parallels at any angle omit the use of tee squareand use two triangles, making one the guide. 8. Lines are important in mechanical drawing. The kindsused are as follows (See Fig. 155): All these points are… … FIG. 154 Illustration showing the use of two triangles in drawing parallel lines at any angle. — 75 — • DiFFeREtrrJCiHOS of L vves • Dotted Lines are used to indicate the. hidden edges of objects DasnLmes a/so-to shew hidden ports Center lines. Construct/on Lines, light -full lines used os name…
Woodwork · Mechanical drawing
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