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 116
arrating his unlooked-for diffi-culty, I had the whole contrivance in all its executant details,before me in a page of my scheme book. The date of this firstdrawing was November 24, 1839. • Published by Harper and Bros., New York.98 SKETCHING 99 Materials for Sketching. — The materials necessary… … FiQ. 262. — First Drawing of Steam Hammer, November 24, 1839. which the squares give. The pencil should be kept well sharpenedwith a long round point. It is desirable to have a small boardon which the paper may be tacked, or clip boards such as areused by bookkeepers will be found very convenient…
Mechanical drawing
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