Mine nit pick. They are called "combines' not "combiners'.
Further pedantry. Modern haying equipment began as usualy with horse drawn mowers followed by rakes of various sorts to gather the hay into windrows. That was 'combined' into a "swather' that cut, conditioned, and layed a swath of hay ready for the 'baler' to compress it into bales, either round or oblong after the hay dried a couple days. Then somehow the term "swather" disappeared, at least in some araes and "haybine" took over.
Yes, it is Saturday morning, I am retired and I am bored :)
Harry K