I’ve been busy and haven’t bought (or built) any saw parts yet but I did find this photo. It’s a two man crosscut saw:
This is a giant Frankenstein’s Monster scale version of my little buck saw. As you can see, it’s not like a regular handsaw. The cutters are in pairs, one cuts the wood fiber on the right of the kerf, the other cuts the fiber on the left of the kerf. Like two little knives that slice the wood but don’t remove it. Then the rakers come along. Those are the v shaped things. The pointy end of the raker, whichever one is moving forward, chisels out the already separated wood fiber. The very very deep gullet gives space for the resulting sawdust to ride all the way to the edge of the log without gumming things up. The cutter teeth and rakers work identically on the pull and the push stroke. It’s a bi-directional saw.
A normal handsaw has teeth like image. (I have no idea where this image came from, it just emerged from GoDuckGo image search… if it’s your image please tell me.) These teeth only cut one way:
Because nothing in life is simple, there are a few old timey saws that cut like the two man saw above. Check out this bad boy:
Holy shit! It’s sawzilla!
By the way, there’s a dude who’s selling that saw. I don’t know anything about his business other than he has several variants of sawzilla and thus he’s cool.