Ignoramus4546 wrote:

I welded the brackets from 3/16" pieces that I had. Each bracket
is supported by eight 1 5/8" screws, going into the garage ceiling
joist. The bar is held by 3/16" chain.

The bar itself is a military surplus junk "FIXTURE, ENGINE MAIN"
that I did not know what to do with.

http://igor.chudov.com/projects/Pullup-Bar/

i


Now, you just know that someone is going to recognize that and need
it...:-)

FWIW it looks to be a hoisting bar, clip the two pins into the
brackets on an engine, adjust the hoisting point for balance, and lift.

Cheers
Trevor Jones