| Year | 1938 |
| Date | 01-Sep |
| Volume | 79 |
| Issue | 1,947 |
| Page | 198 |
| Category | Road Roller |
| Part | |
| Title | A Working Model I.C. Engine-Driven Road Roller |
| Author | Edgar T.Westbury |
| Notes | Near- and off-side motion plates, primary-shaft, longitudinal shaft, lock-nut, friction disc, floating washer and spring cup |