| Year | 1994 |
| Date | 16-Sep |
| Volume | 173 |
| Issue | 3,977 |
| Page | 364 |
| Category | Locomotive |
| Part | 3 |
| Title | Automatic Steam Driven Air Brakes |
| Author | George Davis |
| Notes | Describes the initial testing and automatic control. Steam and air cylinders, compressed air test, automatic pump control: ideas, governor |