| Year | 1967 |
| Date | 19-May |
| Volume | 133 |
| Issue | 3,321 |
| Page | 493 |
| Category | Beam Engine |
| Part | |
| Title | Watt's Parallel Motion |
| Author | Norman Gardner |
| Notes | Construction features of beam engines, positioning the crankshaft, positioning the piston rod, the parallel motion, how it works, the lengths of the links |