simpler=better
Well-known member
Found this junction in my buddy's house. The patent number found on a tag was filed in 1928, patents last 17 years, so this stuff was probably installed in the 30s. Steel casing->wax paper wrap->cloth->rubber->tinned copper 14ga wires.
The tinning on the exterior really did stop corrosion, all the connections looked fine.
The rubber/cloth that was surprisingly supple for being 86 years old! If you peeled back to the stuff under the steel it felt brand new-totally flexible and not dry rotted at all.
The junction block looked original, it was a cast piece with 5 openings for BX to come in and held them with a set screw. The old wire nuts are the black phenolic style.
The tinning on the exterior really did stop corrosion, all the connections looked fine.
The rubber/cloth that was surprisingly supple for being 86 years old! If you peeled back to the stuff under the steel it felt brand new-totally flexible and not dry rotted at all.
The junction block looked original, it was a cast piece with 5 openings for BX to come in and held them with a set screw. The old wire nuts are the black phenolic style.