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I've thought of two things to lift a hopper or basket or whatever you call it. What if you had a winch drum attatched to the window motors. Those things go slow and cannot be backdriven. There would be a steel cable attatched to the winch drum on one end and attatched to the basket on the other end with a pulley to change the direction somewhere in between. So, when you wind up the cable, the basket would be pulled upward. You could replace the cable and winch with a chain and sprocket I suppose. Whichever way you make it, you could have two of these mechanisms pulling up the basket. The basket would have to slide on some sort of track - perhaps telescoping.
Another thing I thought of was something like a screw drive. Have a really big bolt thing spun by a motor and have part of the basket be like a really big nut. Has anyone done this? Would it work?
Or what about a scissor lift operated by the optional 18" stroke pneumatic cylinders or some other means?
Also, how does your everyday forklift go up so high in such a small package?
We are really getting somewhere. Lets build on these ideas. Go!!!
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