| Year | 1922 |
| Date | 07-Dec |
| Volume | 47 |
| Issue | 1,128 |
| Page | 545 |
| Category | Workshop |
| Part | |
| Title | An Automatic Gas or Air Regulator |
| Author | B.Pedder |
| Notes | The body casting, the valve, dial cup, regulator stem, locknut, pointer, collar, valve stem, calibration of regulator |