| Year | 1934 |
| Date | 12-Jul |
| Volume | 71 |
| Issue | 1,731 |
| Page | 30 |
| Category | Pump |
| Part | |
| Title | Constructing a Small Rotary Pump |
| Author | Lionel Hoadley |
| Notes | Main body, method of drilling ports, completed pump, driving cover and aseembly, end cover, ring, rotor blank, method of slotting rotor, blades wired in for facing, rotor shaft finished, sectional assembly |