HANDSAW - definição. O que é HANDSAW. Significado, conceito
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O que (quem) é HANDSAW - definição

ANY TYPE OF HANDHELD SAW
Hand saws; Handsaw
  • Close view of cross-cut saw teeth
  • Different sizes of hand saws
  • Reconstructed Roman hand saw (1st–3rd century AD)

Handsaw         
·noun A saw used with one hand.
Miter saw         
  • A compound-miter saw
MECHANICAL SAW USED TO OBTAIN PRECISE ANGLE CUTS
Mitre saw (handsaw); Mitre saw; Drop saw; Compound saw; Compound miter saw
A miter saw or mitre saw is a saw used to make accurate crosscuts and miters in a workpiece by positioning a mounted blade onto a board. A miter saw in its earliest form was composed of a back saw in a miter box, but in modern implementation consists of a powered circular saw that can be positioned at a variety of angles and lowered onto a board positioned against a backstop called the fence.

Wikipédia

Hand saw

In woodworking and carpentry, hand saws, also known as "panel saws", are used to cut pieces of wood into different shapes. This is usually done in order to join the pieces together and carve a wooden object. They usually operate by having a series of sharp points of some substance that is harder than the wood being cut. The hand saw is a bit like a tenon saw, but with one flat, sharp edge.

Hand saws have been around for thousands of years. Egyptian hieroglyphics exist depicting ancient woodworkers sawing boards into pieces. Ancient bow saws have been found in Japan. The cut patterns on ancient boards may be observed sometimes to bear the unique cutting marks left by saw blades, particularly if the wood was not 'smoothed up' by some method. As for preservation of hand saws, twenty-four saws from eighteenth-century England are known to survive.

Materials for saw blades have varied over the ages. There were probably bronze saws in the time before steel making technology became extensively known and industrialized within the past thousand years or so.

The most popular material for handles of hand saws is applewood; in the early 1900s 2,000,000 board feet of applewood were used annually for this purpose.

Sometimes cultures developed two main types of saw teeth: the cross cut saw teeth and the rip saw teeth. These cut into the wood using different mechanisms. Wood is composed of many long cells running length-ways. Thus, crosscut saws have sawteeth that are usually shaped, often with a metal file, in such a way that they form a series of tiny knifelike edges. The wood cells are contacted by the knife-edge of the tooth and cut. Rip saws, on the other hand, are usually shaped so that they form a series of tiny chisel-like edges. The wood cells are contacted by the chisel and 'ripped' apart from the bundle of other cells. It is common that people do not recognize the difference and use saws both ways. However, a rip saw is much faster than a cross-cut saw when cutting with the grain but leaves a very rough cut, often with splinters on the surface, and has more difficulty maintaining a straight cut when cutting across the grain. The cross-cut saw can cut in any direction but is much slower than needs be when cutting with the grain.

The development of saws was also affected by several factors. The first was the importance of wood to a society, the development of steel and other saw-making technologies and the type of power available. These factors were, in turn, influenced by the environment, such as the types of ores available, the types of trees nearby and the types of wood which was in those trees. Finally, the types of jobs the saws were to perform was also important in the development of the technology.

Among Basques and Australians, traditional hand sawing has generated rural sports. The Basque variant is called tronral.

Exemplos do corpo de texto para HANDSAW
1. He also bought a Black & Decker electric saw, a freezer and a handsaw.
2. He killed her with a knife and then used a handsaw to dismember the body, police said.
3. If that fails, he will tug at them with forceps and if that does not work he will try to saw them off with a makeshift handsaw put together by the shuttle crew.
4. Mailhot told police he took the women to his Woonsocket apartment, choked them, cut them up with a handsaw in his bathtub, stuffed their remains in garbage bags and dumped them in commercial bins around town, Youngs said.
5. Wilma, the eighth hurricane to strike Florida in 15 months, prompted Monique Kilgore to use a handsaw and shears to get rid of debris in front of her Fort Lauderdale home.