We ran across this unique hose splice while replacing some old brittle hoses on the ANT-18. Here is the hose we found connecting the roll valve to the East roll bellows. It separated at the splice. It had been repaired in a former life with a socket used as a hose connector. Too funny.
“The rest of the story” . . . As we continued to replace hoses in our Blue Box, we found 3 of this same kind of hose splice, each made with a different sized socket. Somebody’s socket set was missing a few pieces.