<p>Ringing mechanism including: a power source (12), a speed regulator (14), a ringing device, and a gear (10) connecting the power source (12) to said regulator (14) on the one hand and to the device on the other hand. The mechanism further includes a speed adjustor (16) and control means interacting with the speed adjustor (16) in order to change the driving speed of the ringing device.</p>
