| Year | 2009 |
| Date | 30-Jan |
| Volume | 202 |
| Issue | 4,344 |
| Page | 138 |
| Category | Stationary Engine |
| Part | |
| Title | McOnie's Oscillating Engine |
| Author | Anthony Mount |
| Notes | Describes the main stop valve and throttle valve. Stop valve spindle & gland, steam and exhaust pipes, throttle gland & valve, throttle valve rocker |