26 replies to this topic

[coskibum]

Here is the depression tower off of the resolution lift at copper

it sure has a lot of sheaves

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[Kicking Horse]

nah that is not alot

[KZ]

id say thats nice for one tower

[Dr Frankenstein]

16 sheaves : the maximum for a one-mast tower !

The rapido @ Orford have the same!

[vancouverguy]

I think one of the top towers on the old Granite Chair at Red had more sheaves- I think it was something like 23.

[Allan]

Yes, it had 18/20 I can't remember exactly the #. Tower 18 on Motherlode has 18. But it's a portal tower.

[liftmech]

These days I'm pretty sure you can't have more than 16 on a side unless it's a portal tower. Plus it's very difficult to work on an assembly longer than that without a work chair. The sheaves on that particular tower are also smaller than normal line sheaves- 364mm as opposed to 450. Imagine how big the assembly would be if they were full-size!

[Dr Frankenstein]

Yes I don't know why old Poma and Hall depression sheaves are smaller than support sheaves.

[skier2]

Yeah well all of hall's gondola towers are the small sheaves, and the depression towers have little guides that the grip's wheels roll along as it goes under the tower. At least at lutsen, MN on their gondi (hall).

[Eric]

The friendly giant @ L.Louise has small depression sheaves and big support sheaves

Wierd?

[floridaskier]

I remember on DV's Carpenter lift (91 Yan HSQ) they had compression towers with small, reallly annoyingly bumpy sheaves on top and regular sheaves on the bottom.

DV's Silver Lake Express lift has 16 depression sheaves on tower 27 (the last one before the end terminal). It's not a very steep grade, I have no idea why they did that. The tower before it is suspended (I'll draw a pic if anybody wants later. So probably the two strangest towers at DV are on the same lift, back-to-back

[KZ]

cool

[liftmech]

The theory on the smaller depression sheaves- on FGs at least- is that the smaller-diameter sheaves provide a smoother ride. The grip has less room to move between the sheaves, so it travels less overall. That's the theory, at least. I've noticed that Poma only put 364s on the fixed grips; on high-speed lifts, all line sheaves are 450s.

[Whistler]

Hey Allan, do you have any more pics of Granite Mountain?

[SkiBachelor]

There is some on this site, although they are from after the lived was removed. :)

[Whistler]

I know thanks, but I remeber some a while back with the lift in its glory days.

This post has been edited by Whistler: 23 January 2004 - 05:09 PM

[Allan]

Yes, I do!!

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[Allan]

Another

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[Allan]

#3

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[Allan]

#4

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