Information AboutHammer |
| CATEGORIES ABOUT HAMMER | |
| hammers | |
|
A hammer is a tool meant to deliver blows to an object. The most common uses are for driving Nail s, fitting parts, and breaking up objects. Hammers are often designed for a specific purpose, and vary widely in their shape and structure. Usual features are a handle and a head, with most of the weight in the head. The basic design is hand-operated, but there are also many mechanically operated models for heavier uses. The hammer is a basic tool of many professions, and can also be used as a Weapon . Either way, it is perhaps the oldest human tool, perhaps even older than the earliest '' Homo '' Species . By analogy, the name hammer has also been used for many mechanical parts and devices that are designed to deliver blows, e.g. in the Caplock Mechanism of Firearm s. HISTORY The use of simple tools dates to about 2,400,000 B.C. when various shaped stones were used to strike wood, bone, or other stones to and break them apart and shape them. Stones attached to sticks with strips of leather or animal sinew were being used as hammers by about 30,000 B.C. during the middle of the Old Stone Age. DESIGNS AND VARIATIONS The essential part of a hammer is the head, a compact solid mass that is able to deliver the blows to the intended target without itself deforming. The opposite side of the head may have a second striking surface; or a claw or wedge to pull nails, or may be shaped like a ball as in the Ball-peen Hammer and the Cow hammer. Some upholstery hammers have a magnetized appendage, to pick up Tack s. In the Hatchet the hammer head is secondary to the cutting edge of the tool. In recent years the handles have been made of durable plastic or rubber. Popular hand-powered variations include:
|
Image:Framing Hammerjpg
| "http://wwwinformationdelightinfo/information/entry/Framing_hammer" class="copylinks">Framing Hammer |
|
Image:GeologicalHammerSolidForgedHeadpng
| "http://wwwinformationdelightinfo/information/entry/Geologist's_hammer" class="copylinks">Geologist's Hammer |
|
Image:Hammer Tapissierjpg
| "http://wwwinformationdelightinfo/information/entry/Upholstery_hammer" class="copylinks">Upholstery Hammer |
|
Image:Hammer-1jpg
| "http://wwwinformationdelightinfo/information/entry/Cross-peen_hammer" class="copylinks">Cross-peen Hammer |
|
Image:Ball-peen Hammer 380mmJPG
| "http://wwwinformationdelightinfo/information/entry/Ball-peen_hammer" class="copylinks">Ball-peen Hammer |
|
Image:MalletjpgRubber
| "http://wwwinformationdelightinfo/information/entry/mallet" class="copylinks">Mallet |
|
Image:Wooden MalletjpgWooden
| "http://wwwinformationdelightinfo/information/entry/mallet" class="copylinks">Mallet |
|
Image:Sledgehammerjpg
| "http://wwwinformationdelightinfo/information/entry/Sledgehammer" class="copylinks">Sledgehammer |
|
|
|