| Year | 1940 |
| Date | 03-Oct |
| Volume | 83 |
| Issue | 2,056 |
| Page | 261 |
| Category | General |
| Part | |
| Title | A Memorandum of Minor Mechanisms |
| Author | B.C.J. |
| Notes | Hints for the experimental and model engineer. Eccentric drive, ball-bearing eccentric, variable fulcrum, ball joint, lever anchor pin, spring adjustment, concluding remarks |