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Evolution Of The Hammer

Evolution Of The Hammer






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    Evolution Of The Hammer Evolution Of The Hammer Presentation Transcript

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