 | Charles Westinghouse - Machine design - 1906 - 168 pages
...triangle and move the vertical edge towards the line. If the vertical edge of the triangle and the line coincide the angle is 90°. If they do not coincide, and the vertex of the angle formed by the line and the vertical edge of the triangle is at the top, the angle is greater than 90° by half... | |
 | Calvin Franklin Swingle - Engineering - 1906 - 490 pages
...If the vertical edge of the triangle and the line coincide the Fig. 15 — Fiat Beveled-edge Scale. angle is 90°. If they do not coincide, and the vertex of the angle formed by the line and the vertical edge of the triangle is at the top, the angle is greater than 90° by half... | |
 | Calvin Franklin Swingle - Steam engineering - 1913 - 1270 pages
...the vertical edge of the triangle and the line coincide the Y^^^^^ Fig. 15—Flat Beveled-edge Scale. angle is 90°. If they do not coincide, and the vertex of the angle formed by the line and the vertical edge of the triangle is at the top, the angle is greater than 90° by half... | |
 | Gardner Chace Anthony - Mechanical drawing - 1922 - 188 pages
...the triangle so that both edge and line may be free from shadow, and move the edge of the triangle toward the line. If they coincide, the angle is 90°....A, the angle is greater than 90° by half the angle BAC. If the vertex of the angle is below, the angle is less than 90° by half the amount indicated.... | |
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Beveled-edge Scale. angle is 90°. If they do not coincide, and the vertex of the angle formed by the line and the vertical edge of the triangle is at the top, the angle is greater than 90° by half the angle indicated. If the vertex of the angle is below,... 