| Year | 1986 |
| Date | 17-Oct |
| Volume | 157 |
| Issue | 3,787 |
| Page | 430 |
| Category | Nautical |
| Part | 15 |
| Title | A Marine Triple Expansion Engine. The O.B.Bolton design |
| Author | J.P.Bertinat |
| Notes | Valve gear, expansion links, die blocks, valve rod ends, stages in making the eccentric rods |