| Year | 1920 |
| Date | 17-Jun |
| Volume | 42 |
| Issue | 999 |
| Page | 554 |
| Category | Workshop |
| Part | 3 |
| Title | Small Power Machine Shop Calculations |
| Author | Hubert Bentley |
| Notes | Planing machines, overhead drives, Rack-driven planing machine, quick return motion, feeding mechanism, bed gearing, the feeding mechanism, cross-slide lifting mechanism, cutting speeds and weight of material removed |