| Year | 1930 |
| Date | 30-Oct |
| Volume | 63 |
| Issue | 1,538 |
| Page | 415 |
| Category | Electrical |
| Part | 7 |
| Title | Electric Motor Installation and Management |
| Author | A.H.Avery |
| Notes | Hand Renold chain drive from motor to grinding wheels, continuous rating, root-mean-square rating, intermittent ratings, short chain drive, worm-drive, cable sizes and current-carrying capacities |