| Year | 2023 |
| Date | 03-Nov |
| Volume | 231 |
| Issue | 4,729 |
| Page | 629 |
| Category | Steam |
| Part | 12 |
| Title | Radial Valve Gears Again |
| Author | Duncan Webster |
| Notes | Walschaerts Valve Gear. Sheds light on what is often seen as a complex subject. Introduction, basic principles, design of the combination lever, union link etc.,, design of expansion link, backset, Burrow's method, Gettings' method, results, references |