(57) The invention relates to a drawing mechanism with a variable regulation device for
regulating the probabilities of winning. The mechanism, intended to be associated
to two or more entertainment machines, all of them forming a type of game table or
counter, is formed from a drum, in which a predetermined number of balls are arranged,
which drum can be transparent or like a cage, for allowing in any case the player
or players in question to see the balls contained therein, provided with fixing means
for fixing it to the mentioned game table, with a horizontal rotating shaft arranged
inside the drum and in which a drive mechanism is arranged which allows rotating the
drum in either direction. Said drum equally has a protrusion in the shape of a protruding
turret located on a plane of symmetry perpendicular to the rotating shaft, and with
suitable dimensions for allowing the passage and housing therein of at least one of
the balls. The balls never abandon the assembly formed by the drum and the turret.
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