| Year | 1990 |
| Date | 17-Aug |
| Volume | 165 |
| Issue | 3,879 |
| Page | 215 |
| Category | Stationary Engine |
| Part | 1 |
| Title | Air Engine. Converting a sewing machine into a Beam Engine to demonstrate Watt's Link Motion. |
| Author | W.E.Dean |
| Notes | (Photos: John Punch). The sewing machine, crankshaft bearing housing, crankshaft and connecting rod, beam, Watt linkage and valve rocker, valve rocker arrangement, beam pedestals and Watt motion outriggers |