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Old 21 October 2021, 01:24 AM   #5
HiBoost
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Join Date: Apr 2012
Location: USA
Posts: 1,494
Quote:
Originally Posted by Tools View Post
The crown is a several piece marvel of engineering.



The base of the crown is a socket, and the top of the stem is a nut. When the spring loaded crown is released from the threads, it needs to not only "pop-up" to be used, but it needs to engage the flats of the nut on the stem end.



When you are turning it a bit, you are aligning the nut and socket, which, when aligned, allows the spring to pop it up.
Very interesting, I have often wondered about this second level of "popping out". What you describe makes total sense but I'm having a hard time seeing where that socket and nut would be in these cutaways. Can you clue me in?

Edit: I think I see it now. The cutaway makes it less obvious but you can see a flat on the stem which I presume is one facet of the nut.





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