Hi, Guest
03-26-2006, 10:49 AM
nass,Mar 25 2006, 07:33 PM Wrote:... so is it in theory possible to rig up a pulley system that would allow a focus to do the same thing??Yes, the amount of weight that a pulley system can lift (or pull) is (IIRC--it's been a while) proportional to the number of turns over the pulley.
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ie. A pair of blocks, each having 3 pulleys would have 5 turns (ie ropes between the blocks) thus a Focus could lift a (5x1500lbs) 7500lb deadweight. Add another couple of pulleys, and it can lift more.
The downside, is that you trade force for distance. To lift the load "x" distance you would have to pull 5x the length of rope.
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