| Year | 2006 |
| Date | 27-Oct |
| Volume | 197 |
| Issue | 4,285 |
| Page | 514 |
| Category | General |
| Part | 1 |
| Title | Lifting and Shifting Long Ago |
| Author | John Ditchfield |
| Notes | Look at aspects of the technology available a century ago for moving heavy objects. Craven overhead crane (Manchester), choices: factory cranes and their motive power, footnote, references |