OK--totally stumped..what the heck is it?? Plantation find. field dates to 1850s.

[dg39]

OK--totally stumped..what the heck is it?? Plantation find. field dates to 1850's.

I have been fortunate enough to hunt the site of one of the oldest plantation sites in Louisiana. It dates back to before the 1850s.
I have found several interesting artifacts..36 cal. Colt trigger guard and watch fobs and of course bullets of different calibre.
This is the item that has me puzzled. I think it is probably post 1900.
2-1/2 inches in diameter.
Up to 1/2 inch thick.
I am thinking it may be some sort of lid to a item of machinery.
It was about 3 inches deep.
Heavy brass in composition.
No marks of any kind.
No numbers.
Maybe some of the engineers out there recognise it?

 

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[Bigcypresshunter]

Its a piece from a large Gate Valve. I need to search for pics.

 

[Bigcypresshunter]

What a minute. Are you sure its not brass?

If its iron than forget what I said.

 

[dg39]

I never bothered to check composition...It is brass..(Never assume) I still do that some time..bad habit.... Sorry bout that..
Now..what do we have?
DG

 

[Bigcypresshunter]

I need to look for the patent dg. I believe its half of a replacable gate from a large water gate valve.

 

[Bigcypresshunter]

Here is the screw on type. Yours is different but same principal. Still looking. http://www.treasurenet.com/forums/what/134345-any-ideas-what-what-solved-thanks.html

 

[Bigcypresshunter]

OK I found the link I was searching for. http://www.treasurenet.com/forums/what/280916-fuse-part-casting-cover.html
While not an exact match, Im convinced you have a half of a water gate valve. View attachment 636658

Study the left circled part in the 1901 patent. While not exact it has the same groove for attachment.

View attachment 636659