This is my first post on OGR. While cleaning my 1950's oil derrick I seemed to have disconnected the chain connecting the pivoting beam to what I'll call the plunger that pulls it down. It is broken off at the plunger end. It looks to me that the plunger is to go thru the base with the hollow end up and somehow the chain was attached. There are two small indents on the plunger on either side near the top which I am guessing has something to do with attachment. I do not see signs of a broken solder joint. Is there a clip or part I have lost? I do not recall what it looked like before I broke it.
Any ideas on how to fix this? Thanks to any suggestions.