| Year | 1984 |
| Date | 19-Oct |
| Volume | 153 |
| Issue | 3,739 |
| Page | 430 |
| Category | Workshop |
| Part | |
| Title | A Ball Turning Device |
| Author | H.C.Luckhurst |
| Notes | Sanderson beam engine, advantages of the tool, description, making the tool, preparation for turning the ball, turning the ball |