The craftsman shook the handle, and driven by the handle gear, the large roller on the upper roller began to rotate, and the gears on the small roller connected to the large roller also began to rotate, but after only five or six turns, the gears of the large roller and the small roller were stuck due to poor coordination.

"Mr. Marquis, you see, it got stuck after just a few turns!" The craftsman said angrily.

"Mr. Marquis, if the small roller below is not driven by gears, the mud sticks to the roller too much, and the roller will definitely not be able to rotate flexibly. Even the blind man can see it!" The craftsman muttered at the side with dissatisfaction.

"What do you think?" Chen Xu turned around and asked the group of craftsmen around him.

"I think what Carpenter Tan said makes sense. The soil is not wood, fabric and other items. If it is too sticky, the small roller will not be able to rotate!" An old craftsman next to him said, pulling his beard.

"Hmph, you see, I'm right, you're right, you have a problem with your design!" Tan Mujiang hummed proudly.

"Yes, I think this will happen!" Some others nodded and agreed.

The craftsman's face suddenly became very ugly. He stared at the machine and kept pulling his beard. After a long time, he sighed and said, "If the gears cannot be solved well, this ceramic plate machine will not be used. It seems that it is useless!"

"How can it be a waste of effort? Your idea and creativity are very good, but you just don't pay attention to the properties of the soil. In fact, you only need to solve the problem of gear biting. Your machine is not only used to make clay boards, but can be transformed into a noodle press..."

"Mr. Marquis, what is the noodles press?" The group of people suddenly became interested.

"Haha, many of us love to eat noodles every day, but now the noodles are cut with a hand-rolled knife. Today, when I saw this mud plate machine, I suddenly thought of a faster and better way to make noodles. If we change the mud balls into a dough and put them in, we can press the dough into a dough. If we add another roller with a cutter behind, and after pressing the dough, we will directly pass the knife roller again, and we will be cut into noodles with a width and narrowness..."

"Wow, the Marquis's creativity is simply amazing!"

"It's not bad. In this way, you just need to shake the handle to press out noodles with the same thickness, width and width. It's much more convenient and quicker than a hand-rolled knife. You can even open a noodle workshop to make noodles. Those noodle shops and even ordinary families don't have to make noodles by themselves. Wouldn't it be much more convenient?"

"Liu Jiangli is about to develop!"

"Although the Marquis was just a small change, he actually invented a more practical machine, and the Marquis was still smart!"

"The Marquis is naturally smart, so I can't compare with it!"

A group of people began to flatter Chen Xu, and Liu Jiangli suddenly became extremely excited from decadence. He squatted in front of the machine and looked left and right, looking up and down, and said excitedly: "The Marquis's instructions were enlightened. Just a small change can be made to make noodles of different widths, narrow thicknesses, but there is an extra gear transmission, which is more complicated. If the gear coordination cannot be completely solved, it will still be difficult to make it successfully!"

"So the most core problem of all machines is the transmission problem, and gears are the most commonly used and important design. If the gears are not developed successfully, all machines will not be able to operate well. The more precise the machine is, the higher the requirements for gears. You should organize people to do more research on gears on weekdays. This machine has great prospects and potential and is very creative. Liu Jiangli, if you can successfully make this machine, I will let the Invention Innovation Review Committee evaluate your invention, and it is very hopeful to achieve the first prize..."

"First Prize?!"

"Will you get a bonus of ten thousand yuan?"

The room was filled with exclamations.

"The bonus does not matter. What is important is that everyone should have this kind of exploration of continuous thinking and innovation. This Hou is preparing to promote a patent bill next year. Once the patent bill can be implemented, all workshops that want to make this noodle press will pay Liu Jiangli a fee, which is called the patent licensing fee..."

"Mr., how much is the patent licensing fee?" A craftsman couldn't help asking.

"The amount of patent fees depends on the impact of this invention and innovation on the lives of the people. If the impact is huge, the patent fees will naturally be relatively small. For example, this noodle press is not an irreplaceable necessity, but it has little impact on the lives of the people, but it is a purely commercial manufacturing and production. Then it can be set higher, for example, a machine costs 100 yuan. If one hundred units are produced, then Liu Jiangli can receive a patent license fee of 10,000 yuan!"

"A hundred units are not many. Now, as far as I see, there are many noodle shops on the street, and they sell a large amount of noodles every day. This does not include making them at home. I am afraid that Xianyang will be able to sell dozens or hundreds of units by then..."

"Hiss~, Liu Jiangli is really going to get rich!"

A group of people grinned again and began to discuss.

"It is better to retreat and build a net than to be a craftsman in Linyuan. You are all great craftsmen hired by the Academy of Sciences. What's the use of envying? In fact, this patent bill treats everyone equally. You can also use your brain to invent and create or even improve some items. If you pass the patent review in the future, you will naturally be like Liu Jiangli, just like you can sit at home and count the money until your hands and feet are cramped..."

"Mr. Marquis, if this patent bill is really implemented, wouldn't the inventor be able to eat and use all his descendants?" A craftsman asked with a dry mouth.

"You think too much, everything is constantly developing, and new and old things are constantly being updated and replaced. Although Liu Jiangli's dough press is good, others can also invent a more useful dough press. Maybe in a few years, a new and more useful machine will appear, and others will not buy Liu Jiangli's dough press. Moreover, every patent is time-limited. Perhaps it is ten or twenty years before the patent license expires, and this patent will be invalid. Therefore, it is natural that it is not possible to be self-confidenced by a patent. But since you have this first patent, you can continue to improve and apply for more patents in the future, so others will have no chance to compete. Therefore, the Patent Act is a bill that encourages continuous innovation. You have the opportunity to sit at home and count money, but the premise is that you must also constantly explore and innovate and come up with practical design products..."

Seeing that many people were about to speak, Chen Xu waved his hand and said seriously: "Okay, today is not the time to discuss this topic. You all go back to work hard. Any invention and creation are not spoken out with your mouth. You must let me and the judges see the product and its practical value, otherwise you will have to do nothing for the rest of your life!"

After Chen Xu finished speaking, he went to another room with his hands behind his back. Several craftsmen and officials followed him in, flattering while walking.

"Mr. Marquis, you have unique ideas every time. This noodle press is so creative!"

Chen Xu walked to a chair and sat down and said, "I came here today and wanted to ask, how is the compass I asked for last time now?"

"Mr. Marquis, I'll take it for you to see!" A craftsman walked to the front of a cabinet in the room, opened the cabinet door and quickly brought a wooden box to the table. After opening it, it was small wooden boxes of various types, large and small, square and round.

Chen Xu picked up one and opened it. It was a compass inside, with eight trigram runes such as Qiankun Zhendui, Dui, etc., as well as heavenly stems and earthly branches that represent directions such as A, Yi, B, and D. There is a thin iron sheet two millimeters wide in the center, which is an arrow-shaped, and there is a small hole in the center of the iron sheet. It is fixed to the compass with an extremely thin bamboo wire. As the compass rotates, the iron sheet in the center will also swing, but it is not as flexible as the compass of later generations, and sometimes it does not turn at all.

This is obviously a defective product.

Open another one, and there is a thin needle inside. Tie a thread on the lid of the box. When you open the thin needle, it will hang down and cross in the air. As you rotate the thin needle in the box, it will deflect left and right. Chen Xu tried it for a long time. This should basically be successful, but it is too simple. The thread is too thin and the needle is too small. Once the thread breaks and falls off, it will basically be useless. It is easy to damage in a complex environment like the forest.

There are about a dozen compass in total, and they are basically effective and the productions are different, but none of them are favored by Chen Xu.

It's too simple, far from what he imagined.

Looking at Chen Xu's unsatisfied expression, several craftsmen and craftsmen were a little ashamed. One of them bowed and said, "Mr. Marquis, these compasses were made according to the method you mentioned last time. There is no shortage of magnets now, but they are flexible and sturdy, which are difficult to make, because the pointer is too heavy and cannot be turned, and too light and cannot be fixed..."

Chen Xu had no choice but to choose two of them that he felt more sensitive and strong.

"Compass is important in surveying geography and traveling outdoors, especially for adventure and military purposes. Therefore, you must continue to study it carefully. OK, these two can basically meet my needs. This time I did a good job, and each person went to the finance office to receive a bonus of 200 yuan!"

Chen Xu stood up, took two compass and left the Academy of Sciences directly.

China was the earliest civilization in the world to create a compass. It is rumored that in ancient times, the Sinan chariot was invented during the war between Huangdi and Chiyou. They relied on the guidance of the Sinan chariot to march and fight. However, the Sinan chariot did not rely on magnets, but used pure mechanical principles to drive a pointing instrument on the vehicle to continuously adjust the direction. No matter which direction the vehicle is walking, the pointing instrument always points to the south. Therefore, it is called the Sinan chariot. Sinan is also an important official position in marching and fighting, responsible for providing the army with the right direction at any time.

During the Spring and Autumn Period, some people discovered that magnets could attract iron. Then some alchemists polished magnets based on this property and made a magnetic spoon. They placed them on a smooth plane and turned them. The last spoon handle would always point to the south. This is the true originator of the compass, and one of the four great inventions also officially appeared.

However, this kind of Sinan is not very effective, because the magnetic spoon is too heavy, and the magnetic force during the rotation cannot be enough to stop it just to point to the south. Each time the deviation is very large, and it can only point to roughly one direction. This simple Sinan equipment Daqin is still in use and can be found in many places, including these craftsmen and craftsmen. Chen Xu has tried many times, first identifying the southern position through the sun, and then repeatedly testing the magnetic spoon, but the ten times are six or seven times, the directions are very offset, but the roughly pointing position is the southeast, south and southwest directions, and will never point to the north.

When you go to Zhongnan Mountain, you can't take such an unreliable thing. If you lose a little, you may be very uncommon. You may end up dying in it, because there is indeed less rain in autumn and the view of trees withering is much wider. But the problem is that autumn is prone to fog, and the situation in the mountains is complicated. Some places are covered with fog all day long, and you can't tell the direction without a familiar guide.

The Qin Dynasty has a population of only more than 20 million. After leaving the big city, it will not meet anyone, let alone in the vast mountains.

If I hadn't met two alchemists who collected herbs last time, I would have explained it to me.

After leaving the Academy of Sciences, Chen Xu went out of the city and went to the factory again. He looked for hemp poles and took a large bundle of ropes mixed with twine, as well as various hooks and buckles for climbing and other steel objects.

This time I entered the mountain, I had to climb Cuiwei Peak. No matter whether I could find Xia Zijin, I would at least try not to regret it. I would not look for my wife if I lost it. Men cannot be so cowardly. Although this wife ran away by myself, Chen Xu knew her thoughts and knew that kind of pain. Shui Qingrou was not so sad that she would never make such a decision. Therefore, Chen Xu vowed that even if she spent her whole life, she would definitely find her so that she could understand that she really didn't care whether she had children or not.

So what if you have children? My parents have their own sons. They have saved money for most of their lives to go to college. Then they died shortly after graduation, leaving only the old couple sad and desperate.

What's more, this era is not the place he should stay.
Chapter completed!