| Year | 2013 |
| Date | 31-May |
| Volume | 210 |
| Issue | 4,457 |
| Page | 760 |
| Category | Stationary Engine |
| Part | 5 |
| Title | The Dake Square Piston Engine |
| Author | Stewart Hart |
| Notes | Concludes his unusual engine. Pulley, reversing, valve body, the valve, the handle, spacers, valve stem, spring guides, spring, finishing |