Game apparatus comprising a base supporting a vertical wall and a chin rest for a player (on the left). The wall has an opening facing the chin rest and an arm (in red) is pivotally supported on the base on the side of the wall opposite the chin rest. The arm is adapted to support a simulated pie. The player turns orange gear and the arm randomly swings upwardly to throw the pie through the opening in the vertical wall. The random happens due to the interaction of the arm of a pink curved rib and a pink pin with 4 internal gear segments of different notch numbers (4, 5, 6 and 7 in this video) and 4 rectangular pins fixed on blue gear.
Once the curved rib enters the notch, a click sounds (under action of the green spring). So in interval of two consecutive throwings may be 4, 5, 6, 7 clicks. It is extremely difficult to guess the number of clicks that will take place after the pie is released before it will be released again.
This video was made based on US patent 3488050, 1969