The oil wick lubrication system has been around for a very VERY long time. My first encounter with this system was with a stationary steam engine. It required a small amount of lubrication to the main overhead shaft. Many types of lubrication system existed including a oil drip, but this was a simple solution to an otherwise difficult problem.
We now have modern alternatives, including sealed pressurised oil units for large machinery (common on mining equipment bearings) due to the grease needing to be pressed into the running bearings. The oil wick however is a more delicate solution for bronze shaft bearings and even some gears. An old fashioned, but simple solution.
The Enginer’d