What is this thing in the middle of this stove burner? Does it

What is this bell for in the middle of my stove? : r/Whatisthis

Only half of the middle gas burner lights. Top part was already clean, but I scrubbed and soaked again in case. It ignites fine and doesn't seem to have any obstructions

What are these little metal disks inside the coils on my stove? My fiancé and I just moved into this new place and I've never seen these before on a stove.

What is this thing in the middle of this stove burner? Does it just stabilize a pot? : r/Whatisthis

Whirlpool - WFG525S0JT - 5.0 cu. ft. Gas Range with Center Oval Burner-WFG525S0JT

Here’s a mid ‘50’s Crown that’s a diamond in the rough. Once serviced, she’ll be a shining example of MCM style and utility.

Crown 40 1950's Cathy. double oven with middle burner — Retro Stove & Gas Works

Efficient Mainstays Double Burner for Easy Cooking

Whirlpool 6.0 Cu. Ft. Gas Double Oven Range with Center Oval Burner in Stainless Steel

Mont Alpi 10 Foot BBQ Island with 805 Deluxe Gas Grill, Beverage Cente //

How Much Room is Necessary for a Small Wood Burner?