"Nonny" wrote in message
...

"charlie" wrote in message
...


but for shelving purposes, almost all float is interchangable.

regards,
charlie
http://glassartists.org/ChaniArts

Slightly OT, but of interest, I bet:

Long, long ago in this NG, there was a discussion about where to locate
lifting straps to hoist a flat panel. It was one of the better
discussions I can recall, and brought out some of the best of the
engineering types from even other NGs to get an answer. I even passed
along the discussion to a nephew, who worked for a concrete panel company.
What I remember most was to "lift on the 5ths." In other words, you
divided the panel (or shelf or retaining wall etc) into 5 parts, using 4
lines and then support it at the first points in from the end. It assumes
that the panel is of uniform thickness and strength. It's
counterintuitive in many respects, but recognizes that the interior
sections lend some mutual support and also the outer panels "lift" as they
pivot around the point of attachment.

I assume that this would also apply to an UNLOADED glass, wood or shelf of
other material. Of course, with an uneven distribution of load, such as a
big weight in the center, this might not be correct.

YMMV and also this is based upon my poor, addled brain thinking back many
years.

--
Nonny

ELOQUIDIOT (n) A highly educated, sophisticated,
and articulate person who has absolutely no clue
concerning what they are talking about.
The person is typically a media commentator or politician.



lovin' the sig line.

jc