| Year | 1955 |
| Date | 07-Jul |
| Volume | 113 |
| Issue | 2,824 |
| Page | 12 |
| Category | Lathe |
| Part | |
| Title | A Clasp Nut Engagement Stop |
| Author | Martin Cleeve |
| Notes | A Simple Improvement Which Will Ensure Accuracy in Screwcutting Operations. Damage from swarf, a simple remedy, to remove apron and half-nuts |