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Re: [TowerTalk] [SPAM] Re: Recommendation for mast on bottommountrotator

To: "Gary Schafer" <garyschafer@comcast.net>,"'Bill Turner'" <dezrat@copper.net>, <ve6jy@rac.ca>
Subject: Re: [TowerTalk] [SPAM] Re: Recommendation for mast on bottommountrotator
From: Jim Lux <jimlux@earthlink.net>
Date: Sun, 17 Sep 2006 22:10:42 -0700
List-post: <mailto:towertalk@contesting.com>
At 09:06 PM 9/17/2006, Gary Schafer wrote:



>What you need is a sliding joint in the mast near the top to take the weight
>of the mast off the tower. A set of square tubes that telescope inside each
>other, a couple of feet long, welded into the mast (or coupled with flanges)
>would do the trick.

Doh, of course.  Standard square steel tubing nests quite nicely. 2" 
square tubing with 1/4" wall just slip fits 1 1/2" tubing, for 
instance.  You might need to do a bit of "selecting" of pieces to 
find sections where the inside weld bead doesn't stick out.



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