| Year | 1985 |
| Date | 15-Feb |
| Volume | 154 |
| Issue | 3,747 |
| Page | 212 |
| Category | Hot Air |
| Part | 4 |
| Title | Heat Engines. A Heinrici Hot Air Engine |
| Author | Ian Bradley |
| Notes | The connecting rod, the piston, the displacer, the brackets, the eccentric, the torque tube bearing, the rocker assembly |