The Adler J-5 has been on the workbench (actually the counter in the laundry room) annoying my wife to no end. I finally worked up the gumption to attack some of the problems that made it unusable for the CTP (Classroom Typewriter Project). The Adler J-5 came from the Goodwill with some, what seemed, minor problems. The backspace didn't work, the carriage return lever was bent awkwardly down, and the platen was missing a knob.
The first problem; backspace. I had looked at this briefly before I was distracted by other things. What I discovered was a missing spring on the escarpment mechanism. I didn't have any tiny springs but my wife does have those plastic no-pinch rubber bands. I took the smallest one she had and looped it around the spring post and the backspace bit and bob's-your-uncle.
Next, I had to disassemble the carriage decorative panels to get to the carriage return lever mount. Brute force and caution fixed that. Now it looks as it should.
Finally, the platen knob. The original is lost to the world of Goodwill. I am going to head down to Ace on Saturday and see if I can find a suitable replacement. It needs only to be usable. The aesthetics are inconsequential.
Another one ready for the classroom!