I would like to give the auto feed to the spring cable (Linear movement), The spring is rotating with the help of "engage & disengaging of 3 jaws", the jaws gets rotary motion by the gear which runs by a electric motor.
a mechanism is required, once the jaws disengages the spring cable, mechanism or device should make it possible to move the spring cable linearly.
FYI: The spring cable we are using inside the drain line for cleaning purpose.