Tool Talk
		What's-It Forum => What's-It Forum => Topic started by: international3414 on February 27, 2014, 04:53:25 PM
		
			
			- 
				3.75" long,tapered bolt,gripping wings???...see both pictures
(http://i287.photobucket.com/albums/ll153/richpoor1/th_001-157.jpg) (http://s287.photobucket.com/user/richpoor1/media/001-157.jpg.html)
(http://i287.photobucket.com/albums/ll153/richpoor1/th_002-86.jpg) (http://s287.photobucket.com/user/richpoor1/media/002-86.jpg.html)
			 
			
			- 
				It might be an internal pipe wrench.
			
 
			
			- 
				That's it, John!
https://wildetool.com/catid-62.cfm (https://wildetool.com/catid-62.cfm)
			 
			
			- 
				HUH... learned a new one there.
Thanks
Skip
			 
			
			- 
				thanks,heres another not as .....well more crude
(http://i287.photobucket.com/albums/ll153/richpoor1/th_002-89.jpg) (http://s287.photobucket.com/user/richpoor1/media/002-89.jpg.html)
			 
			
			- 
				
thanks,heres another not as .....well more crude
(http://i287.photobucket.com/albums/ll153/richpoor1/th_002-89.jpg) (http://s287.photobucket.com/user/richpoor1/media/002-89.jpg.html)
Those are also called nipple wrenches.  I have seen many of those that were bent/twisted.
			 
			
			- 
				Here is another one:
(http://www.wvtools.com/images/ebaystore/141202a.JPG)
			 
			
			- 
				good for removing a broken pipe or nipple from a fitting, but use a penetrant 1st.
			
 
			
			- 
				
That's the style I am familiar with, the original one on this thread is new to me.
Skip
Here is another one:
(http://www.wvtools.com/images/ebaystore/141202a.JPG)
			 
			
			- 
				Ideal for screwing short barrel nipples into malleable iron pipe fittings, e.g. central heating radiator connections...
			
 
			
			- 
				
Ideal for screwing short barrel nipples into malleable iron pipe fittings, e.g. central heating radiator connections...
I didn't know if it was safe to respond to a thread that was referring to twisted nipple whatevers.  I once worked with a nasty girl that would laugh and giggle whenever we used certain words. It wasn't cute, either.  She was scary. We renamed parts - nipples were now "short pipes with threads on the end" we just stopped saying dog robbers altogether. I don't know why she had such a cow about those.
We use a nipple wrench, these aren't a nipple wrench in our vernacular- they are internal pipe wrenches and it is okay to laugh at someone using one. The user would probably be an electrician, anyway.  A true nipple wrench has short (2-3) threads made onto a sort of through coupling, the end of the pipe is up against a stop and wedged in.  When the nipple is made up tight, the stop us released from the nipple end. That loosens everything up and the wrench is backed off the 2-3 threads.
Our smallest steel pipe in fire sprinklers is 1".  If I have to back one out above a ceiling I have an easy out welded to 1" pipe. Just stick it up in the pipe and wrench it out backwards.
Chilly
			 
			
			- 
				"we just stopped saying dog robbers altogether. I don't know why she had such a cow about those."
The only time I've heard the "dog robber" term it was used to describe the aide to a general officer in the army.  What is it in the plumbing or fire sprinkler business?
			 
			
			- 
				
"we just stopped saying dog robbers altogether. I don't know why she had such a cow about those."
The only time I've heard the "dog robber" term it was used to describe the aide to a general officer in the army.  What is it in the plumbing or fire sprinkler business?
Most sprinklers have 1/2" pipe threads - 3/4" is used also and some special warehouse sprinklers have 1" threads.  A dog robber is a fitting, sometimes malleable iron but nowadays usually brass, that is an extension piece. Male x female threads.  It solves some problems. For instance a pipe is dropped down from a high warehouse system to a bathroom that is to get a sheetrock ceiling at 8'-0" aff (above finish floor). The framer runs into a problem and sets the ceiling at 7'-11-1/2" aff.  The easy fix is to remove the sprinkler and install a 1/2" long dog robber and re-install the sprinkler. Brass ones are made ip to 2" long.  Tne malleable iron dog robbers add 7/8" length and come in 1/2" & 3/4" thread size.
Chilly