donderdag 8 augustus 2013

The sustainability of the vacuum elevator

The idea is simple enough

Years ago, in my local bank, I've already seen an elevator of the vacuum type. It wasn't a freight or people elevator, but rather it was meant to send pieces of paper from one place in the bank to the next. The medium was air. It was a contraption with see through plastic tubing and ingenious little egg-shaped containers that had rubber around the sides. The teller would put the paper (usually cheques or money) inside the little container, open a little door in the tubing, shove the thing in and press a button. Air then streamed into the tubing and pushed the little nestegg along the tubing. Possibly a vacuum was created along the other side of the tubing as well, i'm not clear on that.
With the technological advancement in computing, money became more and more obsolete, at least in it's paper and coin shape. Nowadays payments at my local bank can be done from anywhere with my smartphone and/ or computer and there's no need for a tubing system at the bank as for the most part, there's no more paper being shuffled around. I was surprised therefore, to see that in the US this system is still largely in place in drive through teller banking. A lot more of money transactions in the US are appearantly still in cash.
Anyway, the idea of shuttling little eggshapes with content in them though vacuumpowered tubing is in a nutshell the idea behind residential vacuum elevators. The residential elevator manufacturers make an inhome elevator a possibility for anyone who needs it. No longer the bulky seats that are hoisted up a flight of stairs, instead an elegant vertical tubing system that hardly takes up any inhome space at all.

Less materials, less dependence on fuels

The first way in which the vacuum elevators beat the classic staircase chair hoisting system as well as the traditional elevator for in home use is the use of lighter materials, less materials. Less bulk means less dependence upon materials that have to be produced and transported. This is of benefit for the environment but it also adds to the possibilities of putting an elevator in the home. The expensive alternatives are hard to install, difficult to realize and simply take up a lot of space, most notably the motor-house takes up a lot of space in the basement. (if you have a basement, if not, the installation of an elevator used to be nigh impossible.) But there's more: the actual shaft of the elevator, the counterweight mechanism, everything takes up space.
The alternative, a chair being hoisted alongside the staircase usually makes the staircase itself difficult to navigate for people actually taking the stairs. There's an unsightly aspect to it as well, a heavy chain pulling the chair upwards. And then there is the comfort, or rather the discomfort of the passenger to consider. If you're in a wheelchair, in order to go up the stairs you have to get yourself out of the wheelchair, into the seat, buckle up and frankly a ride in one of these is rather scary! Then upstairs you would need either another wheelchair or someone needs to bring you your wheelchair from down below. All in all a difficult and wearing process during which you lose you independence. Many people who live with the fact that they are in a wheelchair fiercely seek independence for as much as possible. Not to mention the cost of a nurse or other professional to get you from one floor to the next in your own home.
Much better than is the comfort of a vacuum elevator, which comes in different sizes, large enough to accomodate up to 4 people and certainly large enough to hold a wheelchair. It doesn't require any more space in the home than the actualy shape of the elevator (which is by nature round) and it's a see-through tubing that is both esthetically pleasing and space saving. In it you zoom up to the next floor (up to 4 floors) in comfort and style.

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