| Calvin Franklin Swingle - Engineering - 1906 - 490 pages
...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, the angle is less than 90° by half the amount indicated. Fig. 16 — Triangular Scale. Scales. The best and most convenient form of scale for general use is... | |
| Charles Westinghouse - Machine design - 1906 - 168 pages
...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, the angle is less than 90^.by half the> amount indicated. Fig. 17 — French Curves. Scales. The best and most convenient... | |
| Calvin Franklin Swingle - Steam engineering - 1913 - 1270 pages
...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, the angle is less than 90° by half the amount indicated. Fig. 10—Triangular Scale. Scales. The best and most convenient form of scale for general use is that... | |
| Gardner Chace Anthony - Mechanical drawing - 1922 - 192 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°....square, as indicated by the dotted position, Fig. 143, and draw a line to coincide with the long edge. Reverse the triangle so as to bring the second... | |
| Gardner Chace Anthony - Mechanical drawing - 1922 - 188 pages
...by line and edge is at the top, as shown by 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. TEST or 45° ANGLE. — If the 90° angle is known to be correct, place the 45° triangle on the T square,... | |
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