The essentials of gearing; a text book for students and for self-instruction, containing numerous problems and practical formulas . er Increment. Divide by n. by P. by N. by P. 1. 2. 3. 4. 5. 6. 7. 8. 3: 7 .428 45. .788 2: 5 .400 .743 3: 8 .375 .702 1: 3 .333 .632 3:10 .300 ? .575 2: 7 .285 .549 1: 4 .250 .485 2: 9 .222 .434 1: 5 .200 .392 2:1
The essentials of gearing; a text book for students and for self-instruction, containing numerous problems and practical formulas . er Increment. Divide by n. by P. by N. by P. 1. 2. 3. 4. 5. 6. 7. 8. 3: 7 .428 45. .788 2: 5 .400 .743 3: 8 .375 .702 1: 3 .333 .632 3:10 .300 ? .575 2: 7 .285 .549 1: 4 .250 .485 2: 9 .222 .434 1: 5 .200 .392 2:11 .181 .357 1: 6 .166 .329 2:13 .153 .304 1: 7 .143 .283 2:15 .133 .265 1: 8 .125 .248 2:17 .117 ;)86 .233 1: 9 .111 .221 1:10 .100 lioo P = - = ; P- = ^: . d ntan A = ^, = ^ tan B = tan C = 2 sin An sin A 2 E = p cos A; F = p sin A. 56 BEVEL GEARS WITH AXES AT AXY 63. Bevel Gears with Axes at any the axes of the gears intersect at angles otherthan 90°, tlie drawing of tlie Wanks and devel-opment of the teeth do not differ from the casesalready described. The figuring required is thatindicated in Fig. 27, those in the heavy facebeing used to determine the other values, andnot appearing on the finished drawing. ./ sin a tan A = ? ; tan A = sin a N - + cos a !^ tan B = 2 sin A= or n tan C : sin A + COS a 2 sin A^N E = — cos A ;P — sin A ;P sin AN E = — cos F = — sin rig. 27. Or, the values for E, F, E, and F may be. ob-tained from the table for shafts at 90°, pages 54and 55 by determining the center angles A atidA, and finding the values for 2 E and 2 F, corre-sponding to each gear separately. 57 CHAPTER VIT. SPECIAL FORMS OF ODONTOIDS, NOTATION, FORMULAS. ETC. 64. Odo
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Keywords: ., bookcentury1900, bookdecade1910, bookidessentialsgearing00anth
