Piston rings

References

• "How to Make Piston Rings - Working With Gray Cast Iron, Part One", David W. Moore, Live Steam & Outdoor Railroading, Jan/Feb 2015
• "Machining Steam Engine Piston Rings", Garold B. Kubicek, So You Want To Build A Live Steam Locomotive, Chapter 11
• 8-part series on Piston Rings, Prof. Dennis Chaddock and T. Walshaw (Tubal Cain), beginning in issue #3961 (May 20) of Model Engineer, Vol 172, 1994
• "Piston Rings", Mick Collins, Archive.org
  • Reprinted here
• "Model Piston Ring Practice"