In article .com,
Joe wrote:
Thanks Dan, that was it. I suspected it should slide off but it looked
so seemless I was worried it was built into the wall. I got the chains
out and back in place - now the tough part, how do I keep my son from
doing it again?

Put a crossbar in the end of the chain so it won't go into the opening.
A 1 inch bolt with 2 nuts at the middle of the bolt is one possibility.
Possibly cut the head off the bolt. A 6-32 or an 8-32 would probably
make a good fit.

--
Rich Greenberg N Ft Myers, FL, USA richgr atsign panix.com + 1 239 543 1353
Eastern time. N6LRT I speak for myself & my dogs only. VM'er since CP-67
Canines:Val, Red, Shasta & Casey (RIP), Red & Zero, Siberians Owner:Chinook-L
Retired at the beach Asst Owner:Sibernet-L