Input: blue shaft with spur gear (40 teeth) and face gear (60 teeth).
Yellow carrier rotates idly on the blue shaft.
Pink gear (20 teeth) rotates idly on pivot of the yellow carrier.
Green gear (16 teeth) with orange tool rotates idly in bearing of the yellow carrier.
Popcorn internal gear (80 teeth) is stationary.
In 3 revolutions of the input, the yellow carrier makes 1 rev. and the tool makes 7.5 rev. around its own rotary axis. A point of the orange tool traces curve laid on a sphere.
It is said that this mechanism is applied to an apple-paring machine.