Pen is a widely used writing tool, which was invented at the beginning of19th century and designed by American Walt Man. The pen is made of metal, and the writing is smooth, elastic and quite smooth.
On the mouth of the pen cap or the surface of the pen tip, there are obvious trademark numbers and models. It is divided into dip pen, fountain pen and ink bag pen. Pay attention to maintenance and cleaning when using.
Generation and development:
1809, Britain issued the first pen storage patent, marking the official birth of the pen.
In early storage pens, ink could not flow freely. The author pressed the piston to make the ink flow. After writing for a while, he must press it again, or the ink will stop flowing. Of course, it's inconvenient to write like this.
1829, the British james bailey successfully invented the nib. After special treatment, it is smooth and elastic, so it is very smooth and popular. However, a pen must be dipped in ink to write.
1884, wortmann, an employee of an American insurance company, invented a capillary ink supply method, which solved the above problems well. You can take off the pen tip and inject ink with a small dropper.
At the beginning of the 20th century, the earliest pens that can absorb ink by themselves appeared. It uses a piston to absorb ink. When using the refill, insert the iron sheet into the gap of the refill and squeeze the refill to absorb ink. At 1952, the Schnock pen appeared, and the water was sucked into ink with a tube. It was not until 1956 that the ordinary capillary pen was invented. There are also some art pens and the like.