Paper cutter (also known as a paper trimmer , and sometimes described as "guillotine paper") is a tool often found in offices and classrooms designed to cut large bunches of sheets of paper at once with a straight edge.
Video Paper cutter
Histori
Paper cutters, similar to those currently available, were patented in 1844 and 1852 by Guillaume Massiquot. They have been around since the late 1830s, when, in 1837, Thirault built a model with a fixed blade to a flat surface. Since the mid-19th century, many improvements have been made by Fomm and Krause from Germany, Furnival in England, and Oswego and Seybold in the United States.
Maps Paper cutter
Description
Paper cutter has a varying size, usually from about 30 cm (1 foot) in length on each side for office work up to 841 millimeters (33.1 inches) (edge ​​of paper A1) in the design workshop. The surface will usually have a box painted or carved on it, often by half an inch, and may have a ruler on it. At the very least, it should have a flat edge where the user can line up the paper in the right corner before passing it under the knife. Usually relatively heavy, so it will remain stable when in use.
On the right side is a long curved steel blade, often referred to as a knife, attached to the base at one corner. The larger version has a strong compression coil spring as part of the mounting mechanism that pulls the knife against the stationary edge when the blade is pulled down to cut the paper. The other end of the blade unit is the handle. The right edge of the stationary is also a steel, with an open side, a smooth edge. When the knife is pulled down to cut the paper, the action resembles a pair of scissors, just instead of two blades moving against each other, one stationary. The combination of blades mounted to a stable base produces clean and straight cuts, which would otherwise require a ruler and a razor blade to reach on one page. Paper cutters are also used for cutting thin sheet metal, cardboard, and plastic. The blades on the paper cutter are made of steel, which provides long-term durability. Steel knives can be changed as needed.
The variant design uses a wheel-shaped blade mounted on a sliding plane mounted on the rails. This type of paper cutter is known as a rotary paper cutter. The advantages of this design include being able to make corrugated pieces, perforations or simply to print paper without cutting, simply by replacing different types of round knives. With rotary cutter, it is almost impossible for the user to cut himself, except when changing the bar. This makes it safer for home use. Higher versions of rotary paper cutters are used to cut precision and popular paper to trim photos.
The simpler design uses a double-edged knife that does not spin, but is cut like a folding knife. While cheaper, this design is not preferred for serious work because of its tendency to tear paper, and poor performance with thick media.
Security
Most paper cutters are fitted with a finger shield to prevent the user from accidentally cutting or cutting one digit when using the equipment. However, injury is still possible if the device is not used with proper care or attention.
Industrial paper cutter
In the modern paper industry, larger machines are used to cut large piles of paper, cardboard, or similar materials. Such machines operate in a manner similar to guillotine. Commercial versions are automated and automated, and include clamping mechanisms to prevent material shifts during the cutting process.
See also
- The slider
- Scissors
References
Source of the article : Wikipedia
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