A big thanks to Jim for finding this brochure in old box of files, then sending it my way gratis. It shows the EasyLok Hub, manufactured by the Mechanex Corp, a devision of Tenneco, out of Englewood, Colorado. You can learn a little more about the EasyLok hub’ s history in this post.
Mechanex Corp patented another hub in 1978, but I don’t recognize the hub.
P=L=A=S=T=I=C
The drawing of the hub shows that it is so easy to turn that an infant can do it… or that the hub is about a foot in diameter.
After a while, the plastic degenerated, became useless.