| Year | 1987 |
| Date | 17-Apr |
| Volume | 158 |
| Issue | 3,799 |
| Page | 466 |
| Category | Workshop |
| Part | 9 |
| Title | Spring Design and Manufacture |
| Author | Tubal Cain (T.D.Walshaw) |
| Notes | Designing with the charts, other form of spring, the clamped spring, scale springs, the compound spring |