| Year | 1950 |
| Date | 02-Feb |
| Volume | 102 |
| Issue | 2,541 |
| Page | 133 |
| Category | Horology |
| Part | |
| Title | A Battery-Driven Electric Clock |
| Author | C.R.Jones |
| Notes | Pendulum suspension hook, suspension spring, the pendulum rod, trigger support, trigger, pendulum bob, the bob, rating nut, armature, magnet assembly, first tests |