| Year | 2020 |
| Date | 03-Jul |
| Volume | 225 |
| Issue | 4,642 |
| Page | 100 |
| Category | Stationary Engine |
| Part | 11 |
| Title | The Middleton Double Sided Beam Engine |
| Author | Rodney Oldfield |
| Notes | Constructs another of Bob Middleton's stationary engines. Valve operating arm, full link arm, piston rod top, the spaces for the operating shaft, crosshead slides, link |