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Random Lift Pictures Number Two
Started by liftmech, Jan 14 2004 07:59 AM
145 replies to this topic
#41
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Posted 29 January 2004 - 07:21 PM
A Miner-Denver tower. I had no idea that anyone besides Yan built 3-sheave assemblies.
Member, Department of Ancient Technology, Colorado chapter.
#42
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Posted 29 January 2004 - 07:31 PM
liftmech, on Jan 29 2004, 07:11 PM, said:
Another wacked Yan design- check out this combo! Old I-lift at Copper also had this setup.
Wacked indeed!! :) Sheesh our shacks vibrate if you throw a snowball at them... this one must be really bad!!
- Allan
#43
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Edmontonguy
Posted 29 January 2004 - 07:59 PM
heres a random picture of some of the lower lifts @ marmot
3 lifts are actually visable in this picture.
closest in the fore ground is the vintage 1968 Tranquilizer double chair which i doubt has the original chairs.
Next is the 1990 Eagle Express Quad chair.
and last a few of the towers on the Eagle Ridge Quad are visable to the left of the breakovers on the Eagle Express.
all are doppelmayrs
3 lifts are actually visable in this picture.
closest in the fore ground is the vintage 1968 Tranquilizer double chair which i doubt has the original chairs.
Next is the 1990 Eagle Express Quad chair.
and last a few of the towers on the Eagle Ridge Quad are visable to the left of the breakovers on the Eagle Express.
all are doppelmayrs
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#44
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Posted 31 January 2004 - 10:19 PM
Here is Lookout Mountain Express at Northstar@Tahoe. Note the extremely faded paint.
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Zack
#45
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Edmontonguy
Posted 01 February 2004 - 12:17 AM
heres an awsome shot up the chair 23 lift line and the many intricacies of the YAN terminal.
photo credit goes to mammoth2002
photo credit goes to mammoth2002
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#47
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Posted 01 February 2004 - 11:45 AM
I first I thought this was a ad for a winch cat (just a few bumps on that slope)
Mammoths first big fixed triple. Usually a three legged structure with chain for the counterweight rope. The bottom terminal was designed for large amounts of avalanche debris and the quick removal or grooming of ramp and loading areas before customers arrived. All legs are full of concrete and have electric winches.
YAN advertised these adjustable terminals for 10' + of travel. One of the biggest failures of engineers, insurance companies, and owners of this type and his adjustable top drive lift was to load test it in the highest positions. As the lift was raised in its higher positions, alignment and proper sheave loading became a problem. In lower positions it was found it was easier to add fill to the loading and ramp area rather than make many small position changes.
This lift has a unique unloading terminal that protects it from the wind. It was fabricated by Mammoth in their parking lot in two large curved pieces. Upper terminal picture somewhere in forums.
Ryan B
Mammoths first big fixed triple. Usually a three legged structure with chain for the counterweight rope. The bottom terminal was designed for large amounts of avalanche debris and the quick removal or grooming of ramp and loading areas before customers arrived. All legs are full of concrete and have electric winches.
YAN advertised these adjustable terminals for 10' + of travel. One of the biggest failures of engineers, insurance companies, and owners of this type and his adjustable top drive lift was to load test it in the highest positions. As the lift was raised in its higher positions, alignment and proper sheave loading became a problem. In lower positions it was found it was easier to add fill to the loading and ramp area rather than make many small position changes.
This lift has a unique unloading terminal that protects it from the wind. It was fabricated by Mammoth in their parking lot in two large curved pieces. Upper terminal picture somewhere in forums.
Ryan B
www.ropetech.org
#49
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Posted 01 February 2004 - 04:42 PM
KZ: Lookout isn't that faded. It is only 3 or 4 years old. It is pretty much the same color I remember originally seeing it.
Holy crud! When did you take that picture! It actually has a full-blown line!!!!!!!
Holy crud! When did you take that picture! It actually has a full-blown line!!!!!!!
This post has been edited by CAski: 01 February 2004 - 04:43 PM
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#54
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Posted 04 February 2004 - 08:04 AM
Allan, on Jan 29 2004, 07:31 PM, said:
liftmech, on Jan 29 2004, 07:11 PM, said:
Another wacked Yan design- check out this combo! Old I-lift at Copper also had this setup.
Wacked indeed!! :) Sheesh our shacks vibrate if you throw a snowball at them... this one must be really bad!!
The shack structure is filled with concrete and is quite heavy. I found that out when repairing the old I-lift shack (now the top of Blackjack lift). I wonder if that was one of Kunczinski's cocktail napkin designs for which he's famous...
I imagine Chair 23's top terminal, even with the down-line side open to the wind, is still an improvement on having a traditional unprotected terminal. Can you shut doors of some kind after operation to fully enclose the terminal at night?
Member, Department of Ancient Technology, Colorado chapter.
#60
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Posted 05 February 2004 - 08:36 AM
No, it's quite simple if you think about it. It's just that most manufacturers didn't build one- I imagine because it's just one more inventory item to keep track of. You can put three two-sheave towers close to each other instead of two three-sheave towers; and two-sheave assemblies are a common inventory item.
A three-sheave assembly works like this: a two-rocker is placed on the short end of an evener bar, and a single sheave goes on the long end. The pivot point of the evener bar is in line with the centre sheave. You can see this in a six-sheave assembly; just imagine three single sheaves instead of three two-rockers.
A three-sheave assembly works like this: a two-rocker is placed on the short end of an evener bar, and a single sheave goes on the long end. The pivot point of the evener bar is in line with the centre sheave. You can see this in a six-sheave assembly; just imagine three single sheaves instead of three two-rockers.
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