| Year | 1987 |
| Date | 06-Mar |
| Volume | 158 |
| Issue | 3,796 |
| Page | 280 |
| Category | Workshop |
| Part | 2 |
| Title | The Eureka. A continuous form relieving tool for gear cutters |
| Author | Prof. D.H.Chaddock and Ivan Law |
| Notes | Indexing sleeve, ratchet and anchor plate assemblies, assembly and use |