BECO taper thread 1

[PrintScaffold]

Greetings!
BECO taper thread used in drilling pipes - what is that?
Where does it originates from? What is the standard authority for this thread?
Does anybody know?

 

[micalbrch]

I think it does not comply to any international standard but is a manufacturer's specific thread only. I'm not 100 % sure but I think it is or was an Australian manufacturer. Here is a company site I found:

http://www.tubetechnologiesinc.com/markets/mining/blast-hole/drill-pipe.php.

Perhaps they know more.