NO IDEA

[simulant]

It's 2 1/4" x 2 3/4"

 

[Back-of-the-boat]

I think that protected a pilot light or basically channeled the flame to light the main burner on gas appliances.Not sure what it's technical name would be.

 

[Batch]

Back-of-the-boat,

The technical term "thingie" has always served me well.

Simulant,

My 2 cents...the "legs" look as if they may have been meant to be driven into wood (or concrete). Looks familiar...I have an image in my head of a this thingie (see!) supporting one end of a large, possibly rotating, wooden dowel/rod. However, I look forward to learning the true answer that I am sure will come.

Respectfully,

Batch

 

[bradyboy]

looks like it was exposed to intense heat - maybe a melting pot holder
Brady

 

[nagant]

I think it's a flame ring too. Probably from a gasoline plumber's furnace for sweating lead joints.