Theory of Machine
The Coriolis component of acceleration exists whenever a point moves along a path that has

Linear displacement
Rotational motion
Gravitational acceleration
Tangential acceleration

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Theory of Machine
In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is constant, then

Crossed belt drive is recommended
Both open belt drive and crossed belt drive is recommended
Open belt drive is recommended
The drive is recommended depending upon the torque transmitted

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