Sorry I can't help with the name but the only spear story I can think of was one made by my ex brother in law's father in the 50s to use on deer. I saw it hanging over the door in his hunting cabin in Sullivan Co,PA and he told the story.
It was solid steel and very heavy with a fairly long blade. It's design was made for dropping onto a deer from a tree stand due to the weight. After missing a couple he connected, the spear going completely through the deer, pinning it to the ground causing it to thrash around and bellow horribly. That was it for him and the spear and it was permanantly retired to its place in the cabin.