The Egyptian Pulley

The Egyptian PulleyThe Egyptian PulleyThe Egyptian Pulley

The Egyptian Pulley

The Egyptian PulleyThe Egyptian PulleyThe Egyptian Pulley
  • Home
  • The Egyptian Pulley
  • Photo and Sketches
  • Questions and Answers
  • News
  • Videos
  • Multiple Pulleys
  • Summary
  • More
    • Home
    • The Egyptian Pulley
    • Photo and Sketches
    • Questions and Answers
    • News
    • Videos
    • Multiple Pulleys
    • Summary
  • Home
  • The Egyptian Pulley
  • Photo and Sketches
  • Questions and Answers
  • News
  • Videos
  • Multiple Pulleys
  • Summary

PHOTO AND SKETCHES

  • A full scale Egyptian Pulley, limestone, with 12 inch diameter roller, was successfully tested duplicating a 5,000 pound weight lift (52 degree incline) and is shown in the below PHOTO 1.


  • PHOTO 2  -- a limestone cradle located just outside the King's Chamber in the Great Pyramid.


  • The first four SKETCHES below show how the stone block on a wood sled could have been pulled up and unloaded at the top.  The first sketch is a simplified cartoon showing the basic operation of the Egyptian Pulley (but does not illustrate loading/unloading the stone).
  • Sketches 2 and 3 illustrate a likely stone unloading technique in which a locking "key," holding the Pulley in (horizontal) position, is removed as the stone/sled reaches the top edge. The stone/sled is then simply pulled over the edge and the Pulley transitions horizontally (in the direction the rope is pulled). 
  • Sketch 4 shows the use of a counterweight and two Egyptian Pulleys to lift the stones during the last stage of construction (with relatively little surface area on top).
  • Sketch 5 is an illustration showing a grooved "rope roll" (approximately 14 inches axial length) found at the Step (Djoser) Pyramid.  The Step Pyramid predates the Great Pyramid by more than 100 years.


PHOTO and SKETCHES

Photo 1

Sketch 1

Photo 1

Photo 2

Sketch 1

Photo 1

Sketch 1

Sketch 1

Sketches 2 and 3

Sketches 2 and 3

Sketches 2 and 3

Sketches 2 and 3

Sketch 4

Sketches 2 and 3

Sketch 4

Sketch 5

Sketches 2 and 3

Sketch 4

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