Essentials of drafting; a text and problem book for apprentice, trade and evening technical schools (1918)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 157
d for a polished surface. Fig. 338. Patent Office Drawing. — Probably the most general use ofshaded drawings is for Patent Office work. Such drawings must 140 ESSENTIALS OF DRAFTING be made on pure white paper of a thickness equal to two or threeply Bristol board, using black ink. The outside… … Fig. 339 Office. Fig. 339 shows the layout of a patent drawing. Thefewest number of fines should be used; all dimension and centerlines should be left off. The plane upon which a section is takenshould be indicated. All parts are lettered or numbered. Asthese drawings are reproduced by the photo…
Mechanical drawing
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