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Posted By Bob Youel
I cannot rememver what the terms mean in reference to engineering construction - any help?
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Posted By John Webster
To which can be added other common construction site terms such as Pig's Ear and Horse's A*se.
Seriously, shear legs are two spars/poles secured together at the top from which some kind of lifting block or pulley is suspended. I don't know about cow's tails, but I have heard the term in relation to rock climbing tackle.
John
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Posted By Simon Wilkins
For more details on shear legs see
http://www.tpub.com/celec/81.htm
and for a picture of a large set see http://www.navsource.org/archives/12/120991401.jpg
The term cow's tails seems to be more used in caving than in construction, but to quote
http://ca.geocities.com/...ope_access_equipment.htm
"'Cows tails' are the name given to short lengths of dynamic rope, which are tied to the sit harness (on the D-ring at the centre strong point). They form approximately 1 metre long tails, at the ends of which are tied figure 8 knots and a screwgate carabiner attached. The cow tails are used to connect the operative to his back-up device, his hand ascender, tools, for by passing deviations etc."
Simon
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Posted By Robert K Lewis
Simon's elegant description of cow-tails points to where they are encountered in construction
viz Steel Erection
Safety Net Erection
Rope Access Work
Such terms are becoming increasingly common and one can now find reference to harnesses with single, double and treble tailed in some method statements.
Bob
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