| Year | 1987 |
| Date | 15-May |
| Volume | 158 |
| Issue | 3,801 |
| Page | 588 |
| Category | Workshop |
| Part | 10 |
| Title | Spring Design and Manufacture |
| Author | Tubal Cain (T.D.Walshaw) |
| Notes | The "leaflet" spring, the slotted spring, design uncertainties, leaf springs in practice, curvature, leaf length, shackles and eyes |