Restoring spring suspension for counting mechanism - retains one end of spring in prescribed radial direction and forms loop at other end to engage cross-piece of hinged armature

摘要

A counting mechanism is driven electro-magnetically. A hinged armature is magnetically attracted against the force of a restoring spring. Electrical pulses cause the armature to drive numbered rollers. One end of the restoring spring is formed as a loop that engages a crosspiece formed by a recess in the hinged armature. The other end of the spring is held in a prescribed radial direction. The cross-piece (13) is of constant width and is bowed in shape. The armature (2) is pivotably mounted between side-plates (4, 5). The latter (4, 5) also has bearings (6, 7) for the numbered rollers spindle.