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MMD > Archives > January 2009 > 2009.01.16 > 04Prev  Next


Restoring the Shape of a Tracker Bar Nipple
By John Phillips

In 1962 the Australian Government issued me a lot of cold weather
clothing, a free trip to the Antarctic and a Sharp ANARE knife.  ANARE
stands Australian National Antarctic Research Expedition.  The knife
was a large folding pocket knife, consisting of one blade (not very
sharp in fact), a screwdriver bit at one end, and a marlin spike.  Why
anyone would want to spike marlins I never found out.   I think it was
supposed to be useful for undoing frozen knots in ropes, of which I
produced quite a few, but that's another story.

The spike was just that, a rod of circular cross-section whose diameter
steadily decreased to a sharp point at the tip.  We were supposed never
to leave the base without our ANARE knife.  I don't remember using the
spike on field trips except for opening cans of beer; no ring pulls in
1962.

Anyway I brought my Sharp ANARE home with me and it has resided in a
cupboard ever since.  Until tonight.  While I was cleaning up the 101
nipples on my Steck tracker bar (you see there is some point to this
rigmarole), I noticed that one of the nipples had suffered a trauma at
some time.  It was somewhat squashed out of round.  I contemplated
pushing a series of drill bits into the tube, gradually increasing the
drill size, but I was wary of putting too much strain on the solder
joint at the bottom, even though Spencer Chase has assured me that old
tracker bars are pretty tough.  I was wondering what I could find to
poke into the nipple that increased smoothly in diameter when
inspiration struck -- a marlin spike!  So I ratted around in our
camping gear and found it.  I pushed that spike cautiously into the
nipple, trying to keep the applied force straight down the tube, and
within a few seconds had a much rounder nipple that was still attached
to the tracker bar.  It's not quite perfect, but I'll settle for that.

John Phillips
Hobart, Tasmania


(Message sent Fri 16 Jan 2009, 11:32:41 GMT, from time zone GMT+1100.)

Key Words in Subject:  Bar, Nipple, Restoring, Shape, Tracker

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