I think that a piece of copper pipe or similar with the end flattened just in the middle would provide a double sided discharge for oil .This could be routed to feed the chain just behind the gearbox sprocket on the inside of the lower run .
Putting it here would achieve two things :
-- the oil droplets would hit their target and not be blown by the air blast at speed .
-- The chain would hardly move up or down due to suspension movements ,so the discharge tube would not be damaged .
I might give it a try if I can find a graduated oiler like the one in the article.
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