| Year | 1944 |
| Date | 03-Feb |
| Volume | 90 |
| Issue | 2,230 |
| Page | 107 |
| Category | General |
| Part | |
| Title | Variable Speed Transmission |
| Author | "Old Gaumless" |
| Notes | Step cone pulleys, continuous cones, the "Evans" type variable speed gear, a different method, improvements, the "Reeves" type variable speed gear, variable friction cones, variable speed pulley with stationary adjustments |