The principle of operation of the present device is using a common clock mechanism to drive a dial unit, which measures time by moving a certain number (12+60) spherical indicators (balls). The mechanism is based on combining the action of two face cams with the existing gear transmissions 1/12 used to drive the hour and minutes hands [11].
10.2.1. Arrangement of the time measuring deviceA common clock mechanism 15 is installed on a support base or frame with a dial 20 where holes are made (60off and 12 off) instead of the minutes and hours divisions. Arranged on the inner side of 20 are 12 large and 60 smaller spheres (ball) positioned in separator washers 3 and 19, respectively. The spheres are prevented from falling inside by the disc 22 for the balls 13 and the separator 19, which is a magnetic washer. The disc 22 and the separators 3 and 19 are fixed to the frame or dial. Mounted on the hours gear 17 of the reducer 1:12 of the dial is the disc 8 a toroid-shaped section of which covers the disc 22 and the separator 3 and a cup-shaped detail having a face cam 23 is mounted at the minutes gear 16 (of the reducer Z1/Z2, Z3/Z4). The minutes hand 7 and the hours hand 18 are mounted on the axle of 16 and the gear 17, respectively on the inner side of a transparent section 11 of the dial 20.
