History of Engineering

History of Engineering

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Description

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A pulley, also called a sheave or a drum, is a mechanism composed of a wheel on an axle or shaft that may have a groove between two flanges around its circumference. A rope, cable, belt, or chain usually runs over the wheel and inside the groove, if present. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion. It is one of the six simple machines. Two or more pulleys together are called a block and tackle.show more

Product details

  • Paperback | 144 pages
  • 152 x 229 x 9mm | 222g
  • Loc Publishing
  • United States
  • English
  • 6135974815
  • 9786135974812