This top drive quad was one of the last lifts Riblet built.Upper station and breakover towers.Top unload area.View from the summit toward the Saskatchewan River.Top station with integrated sheave assemblies.View down at tower 8.Tower 9.Middle section of the lift line.Upper lift line.View along the line.Lower lift line.Fixed return at the bottom.Loading area.Lift overview.
They attempted it, but they couldn’t figure out a way to reliably attach and detach grips to the haul rope, and i guess they just didn’t want to move away from their classic grip style. There is an article somewhere interviewing a former Riblet engineer about the topic, but i haven’t been able to find it since i first read it.
Lift Blog 
What was the very last Riblet built?
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No, there is one at Mt. Baker in 2001 and one at Copper Spur, in 2002.
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sad that Riblet never built a detachable. They would probably still be in business if they had😭
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They attempted it, but they couldn’t figure out a way to reliably attach and detach grips to the haul rope, and i guess they just didn’t want to move away from their classic grip style. There is an article somewhere interviewing a former Riblet engineer about the topic, but i haven’t been able to find it since i first read it.
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