| Year | 1931 | 
| Date | 09-Apr | 
| Volume | 64 | 
| Issue | 1,561 | 
| Page | 345 | 
| Category | Steam | 
| Part | |
| Title | Engine Governors | 
| Author | R.W.Dunn | 
| Notes | Some Notes on the Application of Various Governors to Different Machines. "Watt" pendulum, "Porter", head cross-arm, controlling effort, energy, power, sensitiveness, regularity, stability, isochronism, sluggishness, hunting, sensitiveness, regularity, maximum controlling force and power, "Hartnell", "Proell", "Hartung", crankshaft, spring loading diagram |