Luckily I have a picture for you as I changed my breather. As Bernie says there is a steel baffle between the breather and block designed to stop the oil coming out but letting air escape. In my case I was getting a lot of oil from the breather pipe so made a new one to point up as per some 11D’s
You can see how the baffle should sit in this image

The reason I subsequently found for my problems was a burnt out exhaust valve (details in another thread) but having oil come to the top of the engine out of the filler seems a bit extreme?