| Year | 1916 |
| Date | 09-Mar |
| Volume | 34 |
| Issue | 776 |
| Page | 171 |
| Category | Workshop Topics |
| Part | |
| Title | How Not to Deal with a Whitton Chuck - and a Repair Job |
| Author | |
| Notes | Internal parts of geared scroll chuck, the internal boss of a Whiton chuck, scale section of 3" Whiton geared scroll chuck, method of attaching a new boss, showing the boss fractured at the joints to the body |