✅ SOLVED Bridgeport Lantern Expertise please!

[Lexicon Devil]

I dug this lantern base (I guess you call it a "base") today. I need help dating it, as I am not knowledgable at these...yet.
On the knob it reads: "Bridgeport" and that's all I can make out. where the wick comes out says: "Pat Aug-10 75...Re Dec-7 80". I HOPE that means 1875 and 1880, but I am realistic. Just id'ing this piece is good for me. Thanks guys!

 

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[nhbenz]

Not an expert, but the part would be called the burner, and yes the dates would be referring to 1875 and 1880, although it may have been produced a bit later (up until their next improvement)

 

[Lexicon Devil]

Thanks nhbenz! Puzzle solved, I suppose.