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Teacher Developed Classroom Tested

Extremely Versatile Set for Multiple Illustrations
Nine pulleys and an innovative device combine to create a classroom demonstrations for each topic on pulleys found in your curriculum. Exhibit the configuration of single, triple tandem, and quadruple pulleys as well show how each works. A sturdy formica covered base supports two metal rods screwed in vertically. At the top of the vertical rods, two right angle clamps support a horizontal rod of the same size. Eight collars with hook are provided and can be inserted on the horizontal rod for suspended various pulleys. A capstan is fitted on the wooden base at one end with a hook for attaching a pulley at the other end of the base. All necessary materials, including 15 weights and a set of teacher instructions, are supplied for performing a wide variety of demonstrations.

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