| Year | 1921 |
| Date | 18-Aug |
| Volume | 45 |
| Issue | 1,060 |
| Page | 129 |
| Category | Steam |
| Part | |
| Title | Design for an Enclosed Compound High-Speed Vertical Steam Engine |
| Author | "Axle" |
| Notes | Piston rod, connecting rod, valve spindle, guide & crosshead & trunnion, bell crank lever, valve spindle guide bracket, pin for valve spindle bracket fork, two steam chest covers, eccentric rod, flywheel |