This publish is actually only for these fascinated about what “a worn spring” means.
When a spring is wound it’s peeled from the outer or the barrel onto the winding spiggot. Over time the spring loses its elasticity and begins to tackle the form of the spiggot versus the outer barrel. This can be a difficult clock restore as a result of it takes a while to dissassemble the motion, take away the barrel after which extract the spring. A brand new spring should then be wound to a decrease diameter, inserted into the barrel after which launched to a cosy match inside.
The image under exhibits the extracted spring and the brand new spring. You possibly can seet the distinction!.