| Year | 1917 |
| Date | 31-May |
| Volume | 36 |
| Issue | 840 |
| Page | 339 |
| Category | Pump |
| Part | |
| Title | How the "Weir" Feed Pump Works |
| Author | H.Addison |
| Notes | Sectional view, diagram sketches of valve gear, the valve as actually made, showing the shape of the ports, diagram illustrating the working |