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any ideas on creatig a product than acts as a book lifter, we have high shelves...

any ideas on creatig a product than acts as a book lifter, we have high shelves and we need to lift the books their with minimum efforts and what are the materials needed to do that?
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Answer #1

The most economical and best method to lift something with minimum effort is to use Pulleys.

You can use a rope and a pulley ( lubricated) and one support to place load ( books in your case) . The pulley can be hanged above the height of shelf. The whole set up should look like this.

the pulley will decrease the effort needed to lift books to a very minimal level. Make sure that you make the pulley as friction-less as possible.

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