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Can anyone identify this industrial plumbing device for me?

S

stubhead

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Inkwell1002.jpg


The one on the left, there - I got it at the Salvation Army or the Lutheran store - you wouldn't want to pass one of those up - and now I'm kind of wondering what it is... it's got a big round nut that tightens upwards and the two little clampy thumbscrews that let you clamp down VERY FIRMLY on anything 2" in diameter. I started using steel pens again for drawing, and ink bottles like to spill, and you can put a leftover trailer-hitch ball (who doesn't?) in the "plumbing thing" with a plastic insert for the ink and it will never, ever spill... that other thing is my cool brass three-bottle holder from Crown Iron Works in the Iron Range from the old home country. But it got shiny....

Inkwell1004.jpg


http://www.youtube.com/watch?v=--QjywfdcUo&feature=related
 
The wing nuts would imply a temporary useage, as if to be removed quickly with out tools.  A lot of sprinkler pipe uses that color and diameter of fitting, so my guess is it's related to that.  But the wing nut temporary nature suggests it wouldn't be much use under real pressure.  it might be used (again, just guessing) to close off a pipe that isn't under pressure but be full of water that you don't want to drain.

One more caveat, despite what TV shows have taught us, the water coming out of sprinkler pipes is not clean and clear.  It's usually black and stinks with years of rust and stagnation.
 
It almost looks like a piece of rigging equipment.  I'll ask my husband when he gets home.  Rigging wasn't my best class in school.  :tard: 
 
You know, I live right in the middle of a huge corn and soybean farming area.... this sprinkler thing sounds likely, as
THERE ARE NO ACCIDENTS. :o :o :o
I guess its off the the VintageIndustrialSprinklerPartForum.com for me! I hope it's not worth too much.
 
sprinkler as in building fire sprinkler. The inside of the thing has ridges such as they use to couple pre sized sprinlker pipe with, but after looking at it a second time,, and seeing the wing nuts and size of the inside flange, it does not appear to be for a fire sprinkler system, it may just be for a irrigation system, now I am stumped.
 
Those fittings commonly use large tongue in ring type gaskets, so you don't want to wrench the hell out of them.  The star part of it often couples pipe thread to the gasket systems.  While you don't want to put lots of pressure on them, at 2" and garden hose pressure, lots of water can move.  The orange fittings are all over our fire system, and we have 90,000 gallons waiting to rain down upon us in 15 minutes or so.  So, yeah, they can really move water.
Patrick

 
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