[Alex.Norton]

But the output shaft is directly connected to the input shaft constantly because the animation is only 1/4 of the actuall mechanism. The acutall mechanism inslude 4 sets of of levers so the output is constantly being provided with power.

The reason that the output tourque would increase is not because the length of the lever on the one way clutch is increasing but because you are pushing at it from a different angle. An angle that simulates a longer lever.

Also you can think of it in terms of the movement of the shafts. If there were just one cam then the output shaft would only move when the levers were moving in one direction and be stationary the rest of the time. The levers would be moving in the right direction while the input shaft was moving through 180 degrees of arc. No matter how big an arc the output moves through, the arc that the input shaft is pushing for is 180 degrees. During that time if the output moves through 90 degrees then the reduction is 1:2 and there is twice as much output torque as input torque (during the push). If you then change the arc so that for 180 degrees of imput you get 45 degrees of output I really don't care what happens when the output is stop there has to be a reduction of 1:4 and there has to be 4 times as much output torque during the push.

Yes when the output is stoped there is no output power or torque just like in a PWM. However, since there are four sets of levers the output shaft is never stoped since there is always one set of levers pushing on it.