People tried to replace buttons and bows with belts, hooks and rings, so they began to try zippers.
One day, when Judson saw the jagged fangs in the dog's mouth, he was suddenly inspired. If the buttons on the boots were replaced with alternating fangs, wouldn't all the buttons be connected?
2. Expand:
The first zipper in the world appeared in Chicago in 1893, which was called "fastener tape" at that time.
This pair of "fastener tapes", known as the world's earliest zippers, was invented by an American named Wycombe L Judson. Its design principle is exactly the same as modern zipper. At that time, the "hook and loop" was composed of many hooks and loops, and the slider connecting them allowed them to engage or disengage freely. At first, whitcomb L. Judson called it a "shackle". 1893 when the earliest zipper appeared in the Chicago Expo, it caused a great sensation, and Whitcomb L. Judson soon obtained the patent right for this invention. But at that time, zippers were all made by hand and the price was quite expensive, which led to the fact that zippers were not widely used for a long time. It was not until the 1920s that the zipper invented by Whitcomb Judson was widely used in the world after many improvements.
3. Details:
/kloc-one day at the end of 0/9, Whitcomb Judson, an American mechanical engineer, and his wife dressed up at home and went out to attend a banquet. Judson bent down and buckled more than 20 buttons on a boot, already feeling a little backache. His wife, who had put on a skirt, asked her to help her tie the nepotism behind her. Seeing that it was getting closer and closer to the appointed time, he was in a hurry. When he was nervous, his buttons were wrong and he had to unbutton them again, which made him more anxious. Judson spent more than an hour buttoning his boots, helping his wife tie nepotism and buttoning all the buttons on her skirt. Seeing that there was not much time left, the two men hurried to the meeting place. The party has already started, and Judson has to apologize to his friends.
At the banquet, Judson always worried about the trouble at home before going out. He looked at the people who came and went in gorgeous clothes at the party and imagined that they would have some trouble getting dressed at home. He knows that many clothes look good on him, but they are uncomfortable after wearing them for a long time. Because it is more troublesome to put on and take off clothes, people often have to endure discomfort all day. Thought of here, he felt his boots became heavy, and he had an impulse to get rid of them. Can you do something to make clothes easy to put on and take off?
It is troublesome to put on clothes and boots, mainly because there are too many buttons. If we can find a way to connect all the buttons, it will certainly save time. Judson is a mechanical engineer with strong R&D and practical ability. He usually likes to fiddle with some small parts. With this idea, he decided to start with his boots and invent a new button to save time.
He thought about it day and night. One day, he passed the yard of a family, and the dog tied in the yard opened his mouth and barked at him. Originally, it was an unhappy thing, but when he saw the jagged fangs in the dog's mouth, he suddenly got inspiration. If the buttons on the boots were replaced with alternating fangs, wouldn't all the buttons be connected? Judson was very excited, so he hurried home to follow suit and soon designed the first "zipper" in human history.