and A ys of 4 inches is 2,5, that is the length of BC. We then pitch we again simply divide 38-1416 by the given arc pitch. mark on B C the working depth of the tooth, that is ,4, pitch, B a line drawn tangent to any part of it (care being taken to Example: What is the diametral pitch of a wheel… … 14 224 0625 “ 5:08 the distance of C F and draw the segment of circle, H; and ' 16 196 0°5625 <‘ 5°58 the distance between the line, H, and the point, D, on the Working depth of Tooth | 18 174 05 “ 6°28 20 157 = «04875 *< 718 line A B, is the difference in the distance between the points, 22 148…
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![An illustration from Eyn schön nützlich Büchlin vnd Vnderweisung der Kunst des Messens mit dem Zirckel, Richtscheidt oder Linial : zu nutz allen Kunstliebhabern fürnemlich den Malern, Bildhawern, Goldschmiden, Seidenstikern, Steynmetzen, Scheinern auch allen Andern so sich der Kunst des Messens (Perspectiua zü latin gnant) zügebrauchen Lust haben : darin Man auch solche Kunst leichter dan ausz etzlichen hieuorgetruckten Büchern begreiffen vn lernen mag mit vil [i.e., 56] schönen darzü dienenden Figuren (1531)](https://img.insideoutlibrary.com/img/200/ia-eynschnntzlichbc00rodl-22-30.webp)
