TIMEBASE VIBRATOR ASSEMBLY

摘要

In a timebase mechanical vibrator having three parallel oscillating arms arranged in a common plane wherein the central arm oscillates in opposite phase to the two outer arms, the width of the central arm is 2a/n when the width of each outer arm is a and n is a positive integer greater than unity. A sensing magnet is mounted on the free end of one of the outer arms and a driving magnet is mounted on the free end of the other outer arm. A feed magnet is mounted on the free end of the central arm in magnetic cooperation with a rotatable gear wheel to intermittently advance the gear wheel.