They'r definitely not the Ronals you're showing and describing. The spoke's center line is offset to give the 'windmill' appearance, if you know what I mean by that. While the Ronals are asymmetrical, the one I post is perfectly symmetrical.
I'll describe this a little more:
The center of each spoke has a defined edge on it, sharpest on the lip, roundest on the hub.
The shape of spoke is also triangular, where its skinniest on the lip, and fattest on the hub.
Here's a drawing depicting my explanation:
