Evolution Of The Hammer

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Evolution Of The Hammer

  1. 1. Evolution of the Hammer By: Kris Halvorson Hour:6 11-6-07
  2. 2. What is a Hammer? <ul><li>A hammer is a simple tool in which a heavy piece of steel is connected to a wood or aluminum handle. </li></ul><ul><li>The design allows the user to hit an object, ie: nail, with a greater force than if he/she used their own hand. </li></ul><ul><li>It is the momentum created by the swing of the handle that makes the hammer so effective. </li></ul><ul><li>The hammer is important to everyone, because a very large amount of the things we have: houses, bridges, cabinets, beds, etc. </li></ul>
  3. 3. What was/is it used for? <ul><li>Hammers are used to construct structures. A hammer can also be used for removing pieces of construction material from others. </li></ul><ul><li>Thousands of years ago, people used their hammers to break bones of animals, as well as to hunt. </li></ul>
  4. 4. Hammer Time line Current (Pneumatic Hammer) Claw hammer Hammer made with handle First rock/stone hammer
  5. 5. When was the hammer first invented? <ul><li>The origin of the first hammer cannot precisely be calculated. </li></ul><ul><li>There is evidence of the hammer showing up in history, as early as the caveman. </li></ul>
  6. 6. What materials were used to make hammers years ago? <ul><li>Long ago, hammers were made from rocks and other hard natural products. </li></ul><ul><li>When handles were first introduced, they were made of sticks/wood from trees. </li></ul><ul><li>Handles were also sometimes made from bones from animals </li></ul>
  7. 7. Ancient hammers
  8. 8. Improvements/innovations <ul><li>Hammers are now designed to be more comfortable for the user. This is accomplished by making a rubber handle </li></ul><ul><li>Claw hammers have a hook on the head, which is used for extracting nails. </li></ul><ul><li>Air hammers (pneumatic) take all of the work out of manually pounding nails. </li></ul><ul><li>Sledge hammers have heavier heads and longer handles, designed to produce more force. </li></ul>
  9. 9. Types of hammers <ul><li>There are a number of different hammers. These include: </li></ul><ul><li>The claw hammer </li></ul><ul><li>Sledge hammer </li></ul><ul><li>Pneumatic hammer </li></ul><ul><li>Ball-peen hammer </li></ul><ul><li>Mallet </li></ul><ul><li>Maul and more. </li></ul>
  10. 10. Materials used today. <ul><li>There are a variety of different materials used in making a hammer. Some of these materials include: steel, aluminum, wood, rubber, fiberglass, etc. </li></ul><ul><li>Air hammers however are much more complex. They use steel parts, rubber fittings, hoses, and other specific parts. </li></ul>
  11. 11. Why we use hammers <ul><li>We use hammers because it takes out most of the work needed in constructing something. </li></ul>
  12. 12. Bibliography <ul><li>http://www.flipse.com/house/framing2.jpg </li></ul><ul><li>http://www.hammernet.com/hammers.htm </li></ul><ul><li>http://inventors.about.com/library/inventors/bltools.htm </li></ul><ul><li>http://www.diydata.com/tool/hammer/hammers.php </li></ul>

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