Kushlan, Max. [from old catalog] · Chicago, The Branch publishing company · leaf 38
s a somewhat similar sketch of a specialelectrical fitting Intended particularly as an Illustra-tion for an advertisement showing the main points ofconnections and a portion of the Interior arrangementfor contact. FREE HAND DRAWING 33 The main body of the fitting (see Fig. 22) is madeup of a… … FIG. 22. is indicated by means of two ellipses, the distance be-tween these curves corresponding to the thickness ofthe wall of the appliance. Inside of this hollow cylin-der there is a portion of another ellipse shaded veryheavily to show the metal connection visible at thatpoint. 34 FREE HAND…
Mechanical drawing
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