Principles of MechanismLongmans, Green, 1870 - 463 páginas |
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Página 37
... half of fig . 25 are delineated , with the same letters of reference and the addition of other lines for the purpose of obtaining the ne- cessary formulæ . MPM is the common nor- mal composed of the two gorge radii R and R1 . MA the ...
... half of fig . 25 are delineated , with the same letters of reference and the addition of other lines for the purpose of obtaining the ne- cessary formulæ . MPM is the common nor- mal composed of the two gorge radii R and R1 . MA the ...
Página 38
... half - length from the gorge circle of the generators ( G ) and similarly CF = √ R12 + PC2sin2a1 . H - Ee2 + Ce2 = R2 + G2 . when H is the greater radius of the hyperboloid . H12 = R12 + G2 , and G the half length of the generator . If ...
... half - length from the gorge circle of the generators ( G ) and similarly CF = √ R12 + PC2sin2a1 . H - Ee2 + Ce2 = R2 + G2 . when H is the greater radius of the hyperboloid . H12 = R12 + G2 , and G the half length of the generator . If ...
Página 39
... half length PC of the common generator ( figs . 25 and 27 ) , and from C drop perpendiculars Ce , Cf on the legs of the angle , and set off from e , f on those legs the respective lengths DIVISION A. BY ROLLING CONTACT . 39.
... half length PC of the common generator ( figs . 25 and 27 ) , and from C drop perpendiculars Ce , Cf on the legs of the angle , and set off from e , f on those legs the respective lengths DIVISION A. BY ROLLING CONTACT . 39.
Página 40
... half length PC of its generator , by which the triangle PeC and the line MP can be drawn . To construct the dimensions of the required hyperboloid draw an arc from C as a center with radius Cf Ce and from P w1 w This gives the angle a ...
... half length PC of its generator , by which the triangle PeC and the line MP can be drawn . To construct the dimensions of the required hyperboloid draw an arc from C as a center with radius Cf Ce and from P w1 w This gives the angle a ...
Página 41
... half thickness of one of the pullies , and proceeding as before to determine that of the other , and also the radii of the extreme dia- meter of the pulley . The construction , fig . 31 , shows how by Fig . 31 . Fig . 30 . M T P C ...
... half thickness of one of the pullies , and proceeding as before to determine that of the other , and also the radii of the extreme dia- meter of the pulley . The construction , fig . 31 , shows how by Fig . 31 . Fig . 30 . M T P C ...
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Principles of Mechanism: Designed for the Use of Students in the ... Robert Willis Visualização integral - 1841 |
Palavras e frases frequentes
angle angular velocity ratio arrangement axes axis carried center of motion circumference coincide combination communicated cone connected constant contrivance cord crank cylinder dead point describing circle diameter distance driver edge ellipse employed epicyclic train epicycloid equal example excentric extremity fixed follower frame friction frustum geer geometrical series given groove hyperboloid hypocycloid involute last wheel length line of centers link-work logarithmic spiral machine mechanism move number of teeth obtained opposite direction oscillation pair parallel parallel motion pass path perpendicular piece pinion pitch circle plane point of contact position pully rack radial radii radius ratchet-wheel respectively revolution revolve right line roller rolling contact rotation round screw shaft shown side sliding solids of revolution string surface synchronal rotations tangent termed toothed wheel turn upper versin vertical Vide weight wheel-work