Elements of woodwork and construction by King Charles A. (Charles Albert) b. 1865

Author:King, Charles A. (Charles Albert), b. 1865
Language: eng
Format: epub, pdf
Tags: Woodwork (Manual training)
Publisher: New York, American Book Co
Published: 1911-03-25T05:00:00+00:00

WORKING DRAWINGS

147

of the shading, suggesting conventionally the material of which the section actually consists, as in Fig. 104, in which shown the character of the lines .

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generally used to represent the various building materials. If the section is colored, woodwork is illustrated by yellow ; iron, by dark gray or black; brickwork, by red; and stonework, by light gray. Section lines running in different directions indicate that different pieces form the section.

Figure 105 shows the horizontal section of a door frame, its finish, and a part of the partition in which the frame is set.

(B.) It frequently happens that a detail may be too large in one or more of its dimensions to be drawn in the desired scale ; in such a case, if the shape of the detail permits it, the entire length may be shown by breaks being introduced in places where the part broken out is of the same dimension and detail as at the breaks, as shown in Fig. 106.

8o. Center lines. — Figure 107 shows a piece of panel work with breaks, as it is too large to be drawn to the full scale. As both sides of the center line are alike, there is no '~" ^ need of drawing more than one half showing a

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