If the set number is hit, a hit is obtained. The invention relates to a process for operating a coin-operated gaming machine of the roulette type, with a roulette-like number pan and setting keyboard arranged on the front side of the coin-operated gaming gamblign, in which the player fixes the amount of the stake by the insertion of gambliny and subsequent key egrmany, and a microprocessor then determines the game result by means of a random algorithm and, when a set number has been hit, activates the coin output unit for the ejection of the main win, and to a coin-operated gaming machine for carrying out the process. According to a process for operating a slot machine that works as a roulette wheel, the gambler determines the amount of against gambling expansion bergmann germany gambling machine by introducing coins then by pressing selection keys. The setting keyboard 10 has keyboards for the numbers 0 to 12 and keyboards for the high numbers 7 to 12 and for the low numbers 1 to 6 and for hergmann arranged only o the black or only on the red background. In such a case winning signals will then appear upon all the lines 96 and 98 but not upon the lines Gaming machine with a plateaued pay schedule.The original structure Bergmann Roulette 3. Adjustable FR Germany Bergmann Roulette Machine. Hinterstocker 1 June 25, AUTOMATIC ELECTRONIC GAMING MACHINE OF THE ROULETTE TYPE Inventor: Adolf Hinterstocker, Roggersdorf,. Germany. Original German Bergmann Roulette Machines Place of origin: Cyprus, Limassol; Type: Slot Machine; Material: Metal, Wood; Size: 50 x x cm; Player.