The Elements of Mechanism |
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Página 5
... angles are termed mitre wheels . It is sometimes convenient that the axes of the bevil wheels should pass close to each other without intersecting ; the teeth have then a twisted form , and the wheels are known as skew bevils . Fig . 5 ...
... angles are termed mitre wheels . It is sometimes convenient that the axes of the bevil wheels should pass close to each other without intersecting ; the teeth have then a twisted form , and the wheels are known as skew bevils . Fig . 5 ...
Página 7
... angle P R Q represents the angle of the screw . In the diagram , AP is shown as describing a right - handed screw ; if it revolved in the opposite direction during its descent , it would describe a left - handed screw . If a single ...
... angle P R Q represents the angle of the screw . In the diagram , AP is shown as describing a right - handed screw ; if it revolved in the opposite direction during its descent , it would describe a left - handed screw . If a single ...
Página 9
... angles to each other . Fig . 9 . B Thus , let a point move in a circular path , A P B , with a uniform velocity , then it is evident that the point , P , while describing the arc A P , has been the sub- ject of two rectilinear movements ...
... angles to each other . Fig . 9 . B Thus , let a point move in a circular path , A P B , with a uniform velocity , then it is evident that the point , P , while describing the arc A P , has been the sub- ject of two rectilinear movements ...
Página 10
... angles to that of the sliding bar , Q B. ( Fig . 10. ) Of the two equivalents which com- bine to produce the circular motion of P , that which occurs in the direc- tion FE is rendered inoperative , and the whole of the other equivalent ...
... angles to that of the sliding bar , Q B. ( Fig . 10. ) Of the two equivalents which com- bine to produce the circular motion of P , that which occurs in the direc- tion FE is rendered inoperative , and the whole of the other equivalent ...
Página 14
... angle , Q is not in the middle of its stroke , but that D Q is greater than E Q. Ex . Let CP = 10 inches PQ 5 feet } Let 0 = 90 ; then sin as in the case of the engine sketched in Fig . 11 . = CP 10 1 - ― PQ 60 6 1 1 35 .. cos = 1 ...
... angle , Q is not in the middle of its stroke , but that D Q is greater than E Q. Ex . Let CP = 10 inches PQ 5 feet } Let 0 = 90 ; then sin as in the case of the engine sketched in Fig . 11 . = CP 10 1 - ― PQ 60 6 1 1 35 .. cos = 1 ...
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The Elements of Mechanism: Designed for Students of Applied Mechanics T. M. Goodeve Sin vista previa disponible - 2017 |
Términos y frases comunes
A B and C D angular velocities attached axes axis beam bevil wheel centre of motion circular motion clock conical connecting rod contrivance crank Crown 8vo cylinder describes a straight describing circle deviation disc draw driving eccentricity Edinburgh Review ellipse engine epicyclic train epicycloid equal equation fixed groove History hypocycloid Illustrations inch lever machine machinery mechanical move moveable movement nearly number of teeth opposite directions parabolas parallel motion parallelogram path pendulum perpendicular piece pinion piston rod pitch circles plane planing machine plate position Post 8vo principle pulley rack radii ratchet ratchet wheel represent revolves rolling rope rotation round screw thread Second Edition shaft sliding spindle steam straight line strap Suppose Third Edition tooth train of wheels turn velocity vertical vols Woodcuts
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