Automatic rotation indexing and masking of drum change device with manual release of the masking shutters

Claim 1

A toy game machine comprising a plurality of display drums each having a predetermined number of symbols provided at spaced positions on its peripheral surface, a plurality of display windows for exposing said symbols to view therethrough, electrical motor means for driving said drums, a first shaft having said drums frictionally rotatable thereon, a toothed index wheel coupled with each of said drums and having a number of peripheral teeth corresponding to the number of said symbols, a plurality of combination switch and brake elements, a longitudinal plate member carrying said elements, a second shaft pivotal about a horizontal axis extending parallel with said first shaft and having said longitudinal plate member fixedly mounted thereon, a plurality of shutter means each normally masking a window against said symbols, a third shaft extending parallel with said first and second shafts and having said shutter means each rotatably mounted thereon, a plurality of selector push buttons each operatively associated with a respective one of said shutter means and adapted to rotate same into unmasking position when manually actuated, and a starter push button means operatively associated with said motor means and with said combination switch and brake elements through said longitudinal plate member and adapted to rotate said switch and brake elements into and out of a position, respectively when said starter push button means is manually actuated and released, wherein said drums are rotated, said shutter means are returned to a masking position and said drums are braked to an indexed position.