| Year | 1940 |
| Date | 25-Jul |
| Volume | 83 |
| Issue | 2,046 |
| Page | 63 |
| Category | Workshop |
| Part | |
| Title | A Small Rotary Blower |
| Author | R.W.Dunn |
| Notes | Simple Apparatus for use with a gas blowpipe. Main body or casing, casing cover, the rotor, the tongues, the shaft and glands, the disembled parts, coupling |