On Fri, 30 Sep 2011 11:33:43 +1000
"Grumpy" wrote:

That's right. The "loose" one was inserted into an adjacent tube and
allowed the tool to be used "hands free". That is comforting if you have
someone with more enthusiasm than talent on the wooden end of the hammer.

FWIW I found a patent that looks very similar to this item,
Patent No. 886,394. See:

http://www.google.com/patents?id=s7V...intsec=drawing

I only gave it a cursory look, but I think the usage is explained...

--
Leon Fisk
Grand Rapids MI/Zone 5b
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