... stop pin. However, the drive pin can continueits rotation by moving the bracket away from the drive pin and winding up the spring. Anoverriding mechanism is essential in instruments employing ... desired.1 76 Sclater Chapter 6 5/3/01 12:24 PM Page 1 76 CHAPTER 6 SPRING, BELLOW,FLEXURE, SCREW, ANDBALL DEVICESSclater Chapter 6 5/3/01 12:24 PM Page 173TWELVE WAYS TO PUT SPRINGS TO WORKVariable-rate ... lower drive pin, winding up the other spring. Although the principal appli-cations for overriding spring arrangements are in instrumentation, it is feasible to applythese devices in the drives...