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Proposed is a wing nut for hydraulic use. This would allow
quick removal and replacement of compression nuts.
Thumb reinstallation.
http://www.ncbi.nlm...gov/pubmed/19844669
[mouseposture, Aug 17 2011]
[link]
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Am I the only one who finds this absolutely clear and
easy to understand? |
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Oh, hang on. Are you talking about the compression
fittings used in plumbing? If so then, yes, except
that you're not going to be able to run the pipework
close to the wall. |
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Compression nuts quickly work loose if they are only hand-
tight; this is why, if you consult the service manual, you
will find that many hydraulic fittings are tightened to
specific torque settings. |
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Even with the additional purchase provided by the wings, a
human hand cannot sufficiently tighten the compression
fittings on commonplace hydraulic systems, and even low-
pressure systems, such as fuel and coolant lines, would
loosen from flex and vibration. |
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Now that I think about it, I don't even see how this would
speed up removal and installation; whether you use your
hand or a wrench, you still only have to turn the nut a
couple of times to loosen it enough to spin off, likewise to
tighten it. |
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If you wanted to control the torque, you could use
the same engineering technique which is used on
cheap self-assembly garden furniture: when the
wings snap off and you gash your thumb, it's almost
tight enough. |
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Yes, but that eliminates the proposed advantage of this
idea, which is re-usability (i.e. repeated removal and
installation for maintenance purposes). |
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It's almost impossible to remove and install a thumb
effectively. |
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Oh, crap, here comes another BorgCo pitch... |
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As surely as night follows day ... |
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Good point, [Alt]. If a joint requires repeated assembly and disassembly, there are a number of excellent (if expensive) quick-fit or snap-fit connection systems to do the job, the mating parts of which are more or less permanently attached to the pipework, often using compression fittings. |
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Repeated disassembly and reassembly of compression fittings is not recommended, as the propensity of some metals to cold-flow under tension or compression results in progressive distortion of joint components, and resultant difficulty in re-forming a reliable seal. Resorting to compressible washers and/or jointing compounds is not always possible or advisable. |
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// It's almost impossible to remove and install a thumb effectively. // |
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It is eminently possible to remove a thumb, or indeed all the thumbs a human may have; it's the re-installation that tends to present major technical issues. |
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The Borg are, evidently, about a decade behind
Vietnam in that area <link>. |
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Actually, a thumbdrive is quite fiddly to install: I always
seem to get it the wrong way around. And to safely remove
it appears to be occasionally impossible. Is that what you
meant? |
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By the way, Alterother, unless you edited afterwards, how
did you predict the future...have you been assimilated
already? |
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No. The Borg are extraordinarily predictable, once you get
to know them. They suck at rock-paper-scissors. |
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No, cam-lock couplings are superb RPS players. |
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