| Year | 1990 |
| Date | 19-Oct |
| Volume | 165 |
| Issue | 3,883 |
| Page | 486 |
| Category | Railway |
| Part | 7 |
| Title | Vacuum Brakes. An Automatic Vacuum Braking System as used by Birmingham S.M.E. |
| Author | Brian Hughes |
| Notes | Described. Combined brake valve and ejector, locomotive brakes, operating the brakes |