Fun and addictive. However, i feel that this entry goes against the spirit of the jam. The rules pages says " It's highly advised you create new content for the jam", by your own admission you have taken an existing product and ported to HTML5.
Thank you! Well, I completely redrew the game art (that's why only 3 machines, as much as I had time for) and reworked the code while porting. I do use the old idea of producing coins for rotating cog, yes, but it has turned into a game genre type, for which I'm the inventor :)