| Year | 1914 |
| Date | 05-Nov |
| Volume | 31 |
| Issue | 706 |
| Page | 421 |
| Category | Workshop Difficulties |
| Part | |
| Title | Producing Plane Surfaces; and Accurately Dividing a Circle |
| Author | E.Fletcher Roberts |
| Notes | Awarded a prize in our Workshop Difficulties Competition. Planing block to hold brass, brass strip, vertical feed, grooving face of independent chuck, accurately dividing a circular ring |