This is equal to the transmission ratio i for this reducer to the hour’s gear of

an ordinary clock 4 and is thus connected to the hour and minutes hands. There is a spheres container 15 in the bottom section and it is hinged to the hinge 18 so it can swing vertically on the spring 16 and the stem on the normally open electrical contact 17.

The spheres contained in the upper container 5 fall one at a time by the cutting device 6 on one of the vanes of the wheel 13 causing it to rotate thus moving the hands on the time measuring dial 4 via the reducer from Z₁ to Z₅. When the wheel rotates the bar 12 is at position 12₁ and under the action of the spring 19 and via the stem 6 pressed by the additional spring 7 prevents the next sphere (ball) (3) from falling down. The vane of 13 presses the bar 12 to position 12₂ when the ball moves from the vane into the container 15 while the stem 6 slightly retracts but not sufficiently to let the next ball fall down, which at this moment is already beginning to move downwards overcoming the additional resistance exercised by the weak spring 7 and falls down. The procedure is then repeated. The rate can be controlled by means of adjusting the length of the stem of the double-arm bar via the nut 9 and/or using the springs 6 and 19. When the container 15 is filled with too many balls it becomes heavy and moves downwards thus compressing 16 and closing the contact 17, which actuates the electrical motor 1. The motor 1 rotates the shaft of the screw elevator 2 via Z₆/Z₇ and moves the balls back to the container 5 until container 15 is light enough to allow the contact 17 to open.