| Year | 1903 |
| Date | 28-May |
| Volume | 8 |
| Issue | 109 |
| Page | 509 |
| Category | Electrical |
| Part | |
| Title | Model Hand-Feed Arc Lamp for Optical Lantern Use |
| Author | H.R.E. |
| Notes | Worm collar, tube flange, tube bracket, feeding handle, flange bearing, worm feeding gear, carbon holder, diagram of connections |