Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

ThyssenKrupp Multi – world’s first rope-free elevator [video]

youtube.com

Post reply on HN
Print view View original

161–170 of 208 posts

Re: ThyssenKrupp Multi – world’s first rope-free elevator [video]

#161

Post by tbabb »

lobster_johnson wrote: post #103
danielvf wrote: post #77

The big benefit is that you get more than one elevator per shaft. For skyscrapers the amount of floor space wasted by elevators grows exponentially by the number of floors. Say you have a 5 story building that needs a one shaft elevator. 5 floors tiles 100 sqft per floor is 500 sqft of wasted shaft space. Then say you have a 10 story building that needs two shafts. Now you are wasting 10 floors times two shafts or 2,…

The space isn't wasted if it's used to transport people, though.

You can't put more tenants in it and charge them rent.

Re: ThyssenKrupp Multi – world’s first rope-free elevator [video]

#163

Post by riffic »

kentf wrote: post #11

So many negative comments for a Saturday. This is a marvel of engineering and deserves a celebration. Humbled by our ability to re-invent more and more. Well done to all involved.

Simplicity in design should be what we celebrate, and things that actually make it into production. All this is for now is a slick video.

Re: ThyssenKrupp Multi – world’s first rope-free elevator [video]

#164

Post by mkl »

e12e wrote: post #158
smoyer wrote: post #118

Earlier quoted context omitted.

I rode one of those "terrifying" elevators in the '90s in Frankfurt DE and it wasn't actually scary. I could in fact be dangerous but people are pretty smart about not being stupid near them. I will admit that we taped a piece of paper to the floor to make sure the cabin (which was completely carpeted) didn't flip over at the top before we rode it the whole way around.

Could you expand on your "safety paper"? Was it taped to the top floor, as a signal to get out?

Not OP, but here's how I think it worked:

There are effectively two vertical shafts, and the elevator car goes up one and down the other. If the car flipped over as it goes over the top to the other shaft, then what was the floor would become the ceiling. So, tape something to the floor to identify it as it's going up, then wait for that car to come down the other shaft and look at where your identifying paper is.

It does seem pretty obvious that it wouldn't flip over - that seems like an insanely dangerous design.

Re: ThyssenKrupp Multi – world’s first rope-free elevator [video]

#165

Post by dTal »

aaron_m04 wrote: post #147
ChuckMcM wrote: post #54

Earlier quoted context omitted.

Depends on whether or not the car can 'tilt' while it is moving sideways (I know they don't show it doing so). If it can then any amount of acceleration can be presented as 'up' and 'down' force to the occupants much like a plane.

Sounds complex and expensive.

Less than you'd think, if you design it right. You only need to gimbal the car and make it bottom-heavy. Still more complex and expensive than not doing it, but no computers or actuators are required.

Re: ThyssenKrupp Multi – world’s first rope-free elevator [video]

#166

Post by dom0 »

jjoe wrote: post #156

This might read a bit odd and tangential but I cringe every time I get into a ThyssenKrupp elevator. Thyssen and Krupp were huge fans of Hitler and the Nazis. The two families donated large sums of money to their cause. They both benefited from Hitler's support and promoted the use of forced labor. ThyssenKrupp is largely seen as a Hitler firm in many circles. [0] https://en.wikipedia.org/wiki/ThyssenKrupp [1] https:…

The case of Thyssen is actually quite interesting, because he was an avid Hitler supporter in the early 1930s, but later heavily opposed Nazi policies and fled the country.

Re: ThyssenKrupp Multi – world’s first rope-free elevator [video]

#167

Post by freehunter »

riffic wrote: post #163
kentf wrote: post #11

So many negative comments for a Saturday. This is a marvel of engineering and deserves a celebration. Humbled by our ability to re-invent more and more. Well done to all involved.

Simplicity in design should be what we celebrate, and things that actually make it into production. All this is for now is a slick video.

Eh... Rube Goldberg Machines are often celebrated as being of interesting design, and they are created with the expressed purpose of being overly complicated. There is room in the world for very clever engineering, very complicated engineering, very elegant engineering, and everything in between.

Re: ThyssenKrupp Multi – world’s first rope-free elevator [video]

#168

Post by pm90 »

Animats wrote: post #108

The elevator industry has been playing around with multi-cab systems for many years. The Otis Odyssey system (1997) [1] had cabs that could move both horizontally and vertically. The cabs were more like containers carried vertically in ordinary elevators and slid out sideways for horizontal movement. Otis built a full-sized prototype, but nobody ever ordered one. Otis considered ropeless elevators, but in 1997 it loo…

Wow. Kinda off topic, but looking at the complexity of the automatic parking garage makes me wonder whether, in the future, growth of jobs will look like, e.g. automatic parking garage repairer...

Re: ThyssenKrupp Multi – world’s first rope-free elevator [video]

#169

Post by pm90 »

jjoe wrote: post #156

This might read a bit odd and tangential but I cringe every time I get into a ThyssenKrupp elevator. Thyssen and Krupp were huge fans of Hitler and the Nazis. The two families donated large sums of money to their cause. They both benefited from Hitler's support and promoted the use of forced labor. ThyssenKrupp is largely seen as a Hitler firm in many circles. [0] https://en.wikipedia.org/wiki/ThyssenKrupp [1] https:…

Many of the progenitors of modern Japanese companies were heavily involved in assisting the Imperial Japanese government during WW2 as well. Although US did dismantle a lot of the zaibatsu's after the war.

Re: ThyssenKrupp Multi – world’s first rope-free elevator [video]

#170

Post by lathiat »

spookyuser wrote: post #90
danielvf wrote: post #77

The big benefit is that you get more than one elevator per shaft. For skyscrapers the amount of floor space wasted by elevators grows exponentially by the number of floors. Say you have a 5 story building that needs a one shaft elevator. 5 floors tiles 100 sqft per floor is 500 sqft of wasted shaft space. Then say you have a 10 story building that needs two shafts. Now you are wasting 10 floors times two shafts or 2,…

https://www.youtube.com/watch?v=YgJBD1wf-YQ Here is Tom Scott's video about the continuous loop elevator's.

Better video :-)
Post reply on HN