Afag Handhabungs- und Zuführtechnik

Two tight turns on each end of the spring keep the springs from wedging into each other.

Three tight turns in the middle of the spring enhance its rigidity.

The wire of the larger end of a tapered spring is bent through the centre to keep the springs from wedging into each other.

3-4 tight turns on each end of a barrel shaped spring keep the springs from wedging into each other.