| Year | 2020 |
| Date | 06-Nov |
| Volume | 225 |
| Issue | 4,651 |
| Page | 639 |
| Category | Historic |
| Part | 14 |
| Title | The Stationary Steam Engine |
| Author | Ron Fitzgerald |
| Notes | Watt Triumphant with Wilkinson's Help. Takes a look at the history and development of the stationary steam engine. The pivoting slide valve (drawing in the Boulton and Watt Collection, City of Birmingham Library, the Egerton Manuscript drawing of the Wilkinson's Broseley Engine, John Colville's 52 inch engine for Torryburn Colliery, Dumfries (drawing in the Boulton and Watt Collection, City of Birmingham Library), references |