Operations Research and Financial Markets

An improved movement construction for a condition responsive gauge instrument to transmit displacement motion with reduced backlash from a condition responsive element to an output drive. A first embodiment comprises a spring grip between the segment gear of the movement and the pivot actuator imposed by an integral wrap-around tail portion of the segment gear. A second embodiment comprises a second segment gear supported in parallel relation with the first segment gear and operative to impose a weighted relation on the pinion of the output drive. A third embodiment comprises a combination of the first and second embodiments.