| Year | 1935 |
| Date | 25-Jul |
| Volume | 73 |
| Issue | 1,785 |
| Page | 75 |
| Category | Testing |
| Part | |
| Title | Testing Small Power Engines |
| Author | Edgar T.Westbury |
| Notes | An improved torque reaction dynamometer (with concentric engine mounting), electro-magnetic dynamometers, a flat twin engine mounted for torque reaction testing, side and end elevations of swinging-field electro-magnetic dynamometer, wiring diagram |