| Year | 1919 |
| Date | 27-Feb |
| Volume | 40 |
| Issue | 931 |
| Page | 135 |
| Category | General |
| Part | |
| Title | Engineering and Invention Notes |
| Author | |
| Notes | An Illuminated Fuse Tester. Electric Welding and Cargo Capacity. A Wireless Problem for Inventors. Output of Standard Gauge Locomotives in the United States. Platinum Substitutes for Spark-gaps. One-armed Men. A Very Small Electric Motor. Simple Optical Pyrometer. Imitation Metal Buttons. A Power-driven Butter-churn for Household Use. Indicator of Normal Incidence for Radiograph. A Travelling Bakery. A "Wireless" Soldier |