Mechanical drawing problems for high schools, normal schools and vocational schools (1918)
Berg, Edward. [from old catalog], Kronquist, Emil F. (Emil Fritjoff), b. 1882 · Peoria, Ill. : The Manual arts press · leaf 66
n acid. The acid evapo-rates quickly so that lines drawn with the ink will dry rapidly. The ruling pen must thereforebe cleaned constantly as the ink becomes thick and sluggish between the points of the nibs.^^hen this occurs the ink does not flow freely and the result is a ragged line or no line… … 64 MECHANICAL DRAWING PROBLEMS Specification—Plate 14 A. Make a complete working drawing of the Pin Bearing. Scale I2=i. Title:— PIN BEARING SCALE DATE . NAME 1. Why are the front and side views preferred to the front and top views in the drawing of the PinBearine? PLATE 14A
Mechanical drawing
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