PVB light source used for the first time
The Paraffin Vapour Burner (PVB) light source widely adopted in Trinity House lighthouses is first exhibited, at Dungeness Lighthouse, Kent.
These burners came to replace in many lighthouse the multi-wick oil burners and incandescent oil burners used in the late 19th and early 20th centuries. The burners came in four sizes, viz.: with autoform mantles 35 m/m, 50 m/m, 75 m/m and 100 m/m diameter.