| Year | 1994 |
| Date | 18-Nov |
| Volume | 173 |
| Issue | 3,981 |
| Page | 611 |
| Category | Stationary Engine |
| Part | |
| Title | Theta. A simple oscillating steam engine |
| Author | Richard Gordon |
| Notes | Describes his design. Cylinder assembly, piston, crankshaft assembly, flywheel, cylinder pivot bolt, spring, stand, final details and assembly |