Does The Job (sort of)
"I have a couple of Lamplight Farms "Chamber" lamps that use #1 size burners and collars. I bought three adapters so that I could convert to number 2 size burners. None of the adapters would thread into the # 1 size collars, although they do fit snugly enough (essentially a press type fit) that I can use them for the intended purpose. ."
