No, the lines I'm talking about are there for slip testing. You can see lines from grip relocations, but lines are painted on cables so that one can see if the chair has moved through use.
If a conventional grip fails, it could simply slip a small amount of cable. Yes, there are documented cases in which chairs slide back into other chairs, however you need to remember that there are many more clamped chairs than Riblet gripped chairs. Proportions. Also think about this. By inserting directly into the cable, you creating somewhat of a weakspot. Take a clothesline, and put some nails through it. See if it weakens. Now put some clothespins on it. Notice the clothesline remains sturdy. Haul ropes are obviously much stronger than a clothesline rope, however again its in proportions with nails vs. Riblet grips and clothespins vs. regular grips.
Please note I am not bringing detachable grips into this, as that's a completely different ballgame due to the dynamic nature of them.
Bottom line: there's more than just a patent holding people back from using more Riblet style grips through the country and world.[addsig]
Surely there must be a way to check the tensile strength of a Riblet's cable. If your 'average' Riblet has about 140 chairs hanging from its cable, you've got 140 weak spots. That would mean you've got, in theory, 140 spots at which the cable's integrity could be dangerously compromised over time, versus other lifts.
However, I suspect this is an over-simplification. IIRC, Riblet cables, even on double chairs, are pretty darn fat, thicker than the Hall and CTEC/Hall frankenlifts I've ridden. At least, that's how they appeared. I've not seen any technical data supporting this.
Actually, we could cut right to the chase and converse with the president of Riblet himself. I emailed him about Riblet TBars and he answered me the next day. If anyone would know a Riblet, it would be the guy that makes 'em! And the folks at the resorts that keep 'em alive.
And the folks at the state tramway departments (or boards) that gotta inspect 'em.
IBRAKE, VALIENT DEFENDER OF RIBLETS AND HALL TBARS WORLDWIDE [addsig]
And now back to the discussion about Crochet(Onset): Have the new owners decided what they are going to call it? Are they going to call it Crochet, Onset, Bobcat or something else? I'd be interested to hear their thoughts on this.
Born to ski...forced to work!http://teachski.com
I hope they reopen the rest of the crotch though. It looked like it was a lot of fun to ski in it's time.[addsig]
__________ Fall Linen. Imaginary line following the most direct path down a slope that skiers continuously traverse on a run, often stopping at other invisible slope features along the way like the Tumble Lane, the Stagger Path and the Topple Zone.