That paper clip paper clip is bent back and forth with a wire made of auxiliary gadgets you clip file or paper in working life. Paperclip seems to be the easiest of all invention, one, it is but a short jam bent wire. But a paper clip into shape before we use today, but after a number of design iterations.
The past, people often use to pin their sheets together. But paper pin damage, but also because of the punctured finger injury to the user. 19th century a "paper clip." The first paper clip is a metal plate with two small teeth, paper sandwiched between the metal plate and small teeth. This paper clips will also leave prints on paper, but not the same as a pin scratch paper or fingers. This paper clips patented in 1864, this file paper margins will never become tattered because of the pin.
Since then, a variety of paper clips one after another. Finally, the emergence of a paper clip with a spring device, which is similar to the clip that we use today, but at the time the material can not meet the requirements, because half of the wire or novelty in the 19th century. To select a Hooke's Law (Hooke's law states that, within the elastic limit, deformation caused by an external force is proportional to the object with deformation) material is not easy to meet.
After the steel is widely used, the oldest paper clips come out. We do not know how the paper clip is designed to appear in Norway John Waller's mind. In 1899 he invented the gadgets, but because there was no patent system in Norway, and instead he applied for German invention. During World War II, the Norwegian paper clips in the neckline of her dress, to protest the German invasion. Valle of this invention to obtain a US patent in 1901. This patent was described as follows: The quality of material having elasticity, such as a wire, bent into a rectangular, triangular or other shape, when, by virtue of the final wire parallel. He invented the paper clip has been very similar to today's paper clips, but there is an important difference, less than the current paper clip around a circle. The disadvantage of this is that when the paper clip clip files easily pry.
To solve this problem, in 1900, Kang Lisi Bo Josselin also applied for a patent paperclip. This paper clips have been relatively easy to use, but it is the existence of damage or the sheet of paper off the problem. For paper clip design, scientists diligently carrying on, there have been many new products.
Later, the "gem" card replaces the paper clip paper clips before all the design, and has become almost synonymous with the paper clip, won the user's favorite. Some praise, "When gem" posterity, archaeologists believe the future will be given a high rating in all invention "Gem" is the perfect backdrop for the way people think of the invention of the paper clip has ended, any modifications are clumsy useless.
No one seems to mention the "gem" card paper clip patented, it is impossible to determine who is its inventor. But since the beginning of this century was adopted, it became the standard design.
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