| Year | 2005 |
| Date | 08-Jul |
| Volume | 195 |
| Issue | 4,251 |
| Page | 20 |
| Category | General |
| Part | 3 |
| Title | A Model Power Driven Spring Hammer |
| Author | The late Dave Lammas |
| Notes | Spring linkage components. Threaded links, connecting links, end fittings, pins, rotating mechanism, bushes, crank disc/flywheel, pulley, clutch disc |