Chiffon cakes were invented by Henry Baker in the early 1900’s he kept the recipe a secret for 2 decades before he sold it to Betty Crocker (General Mills) in 1947. General Mills published the recipe, here is a link to the original http://researchingfoodhistory.blogspot.co.uk/2013/08/chiffon-cake-new-sponge-cake-in-1948.html.
Chiffon cakes are normally baked in a tube pan like this:
You can purchase tube pans from www.bakingfrenzy.com or www.amazon.com.
I have yet to buy one a tube pan and bake my chiffons in an aluminium push pan without a non stick coating, bought from Lakeland.
It is best to bake the chiffon in a tin without a non stick coating as the cake batter needs to cling onto the sides to hold itself up. It is possible to bake a chiffon in a pan with a non stick coating but your cake may deflate or not rise to it’s full potential.