Siheyuan: I decide the fate of the world with my medical skills

Moreover, the land of the empire belongs to the heaven and earth, and the people who cultivate the land must pay taxes. More importantly, when invaders come and need to be dealt with, the Yue people become permanent residents, and the security burden of the South Sea area can be reduced a lot. This win-win situation has always been won by the Qin Dynasty.

Then dozens of huge logs and countless bamboo poles were carried to the land. After the boatmen paid their respects to Ziying, they left in a group.

The raw materials are transported every three days, and the next delivery will be in the next three days.

Ziying nodded slightly, responded to the other party, and walked out of the platform with Li Shang: "Follow me, I will show you something good!"

Feeling that there was something strange about this, Li Shang had a flash of alertness in his heart, but he still followed Ziying closely and walked towards the simple little house by the river. "Greetings, young master." The master worker under the green tile roof bowed and saluted, wearing an aristocratic hat on his head. Li Shang recognized it with his eyes. It was the second son of the newly appointed general Gong Shugui, the engineer Gong Shupan. He didn't seem to understand why the scene in front of him was a little unconventional. The waterwheel was equipped with a rotating handle and lever - how did this saw blade work?

"What a wonderful machine this is!" Li Shang said to Ziying, who looked at him in admiration. Your Majesty? Your Majesty is in the Afang Palace now, right? What is the connection between you and your Majesty... His doubts grew stronger and stronger.

Gongshu Pan explained with a smile: "This machine was built by an old gentleman according to the blueprint drawn by Your Majesty. With the help of water conservancy, the work efficiency is more than ten times higher than the old method!"

Li Shang widened his eyes and muttered in a low voice: "Is it really that magical?" "As my father often said, the craftsmanship is ingenious!" After saying that, he continued to introduce it with a smile.

These machines do not look complicated. Just as His Majesty always said, it is only necessary to convert the rotating motion of the waterwheel into a linear reciprocating motion to push the saw blade to stretch back and forth to achieve the purpose of cutting wood, and the structure is extremely exquisite. He took a closer look and found that there were clear small characters engraved on the sharp saw teeth, indicating that the manufacturer was General Gong Shugui, Engineer Li, and Supervisor Yu Chang. This is the unique "name of the worker on the object" management system of the Qin State. If there is a problem in the manufacturing process, when tracing the responsibility, you only need to follow the clues and ask Gong Shugui. Gong Shupan added: At first, I wanted to use circular slices for cutting, but after actual attempts, I found that the stability was insufficient and it was impossible to accurately cut the edge of the wood. For this reason, I re-conceived and adopted a sawtooth design that moves up and down. Along the river, a total of two dams were built and waterwheels were installed. Each waterwheel can drive two sets of sawing machines. "The two sawing machines we arranged in this shed are specially used for slicing and making woodblocks."

Afterwards, Gongshu Pan pointed Li Shangying's eyes at the slides hanging on both sides of the waterwheel's trunk: "The arrangement of the saw blades is like a frame structure, which allows us to set up rows of blades in neat rows. We can also adjust the gaps between the saw blades according to the different needs of the wood to improve accuracy." This is the linkage working principle. The saw blades are divided into two batches, and the logs only need to be inserted into these blades. After processing on the opposite side, pieces of wood boards can be cut out. This is very efficient, and usually only a few workers are needed to put the materials into the cutting machine.

Gongshu Pan pointed to the platform opposite the knife rack and said, "This is what your majesty calls a saw frame. The base has four iron wheels that move back and forth on wooden tracks."

Li Shang examined it and asked, "Can I try it?"

Ziying laughed heartily and said, "Of course! Free labor, this is something I like very much!"

"But before you start, you need to put on your specially tailored work robes!"

Li Shang followed the direction of the finger and saw the set of tools called "work clothes" hanging on the wooden frame - the pig-neck cover was designed to resist wood powder, and the leather hand guard was obviously designed to protect the arm from the danger of being sawed.

"Are the other two machines designed in the same way?" Li Shang touched the slender and thick serrated blade, then turned to ask Gongshu Pan.

"It's not what you think. One of the wooden wheelbarrows is connected to two saws, which are arranged in upper and lower layers. The lower one is used to cut thick wood, while the upper one can be used as a straight saw to process special shapes of wooden strips or square wooden blocks. It can also be used to cut specified angles and shapes with the help of a measuring instrument." Gongshu Pan shook his head and explained.

"Can these machines saw out the door frame of our bamboo house?" Seeing Gongshu Pan silently nod his head in affirmation, Li Shang couldn't help but exclaim, "Lu Ban's descendants are really extraordinary. This saw is really used in a superb way!"

"This is our modest contribution after inheriting the wisdom of our ancestors." Gongshu Pan replied with a smile.

Ziying clapped his hands and said, "These are all the achievements of the monarch. We have only made appropriate improvements and developments on them."

Several slaves carried dried logs into the work area. Gongshu Pan instructed Li Shang to stand behind the saw and start operating it. He rotated the control lever and pushed the three slide rails into the saw. At the same time, he turned to the foreman and said,

"Have them swing the log up, yes, pull it out a little at the front, and hold it down hard at the back."

After the foreman adjusted the log according to the instructions, Gong Shupan walked forward and hammered the metal spikes on the three thrusters into the log. The spikes were inserted like hooks and mouths to secure the wood.

After ensuring that the wood piece was firmly fixed, Gongshu Pan turned to the saw blade, opened the water channel next to it, and guided the bamboo tube to spray water towards the cut surface of the saw blade. This was used to provide cooling water for the saw blade to prevent high-temperature burns.

He checked several times to make sure the saw blade was securely fixed, then finally nodded and instructed the craftsman outside to connect the water supply.

All I heard was the sound of water rushing in from outside, and the saw blade started quickly, making a roar as it danced up and down.

Gongshu Pan once again reminded everyone to be careful, "When the saw is in operation, please do not approach anyone who is not involved in the operation. Even those who are operating it must stay at least one foot away from the sawtooth area. Negligence may result in life-threatening situations!"

After listening to the foreman's safety instructions and several workers nodding their heads to show their understanding, Gongshu Pan returned to the operation position, looked around the bamboo, and turned to Li Shang beside him and said,

"We can start now."

He slid down hard, and then a look of surprise appeared on his face: "Hey, this speed is really fast!"

The task that used to require several slaves to lift the slab and put it on the conveyor belt was now a piece of cake for him. He pushed it effortlessly.

Gongshu Pan gave him a puzzled look, secretly mocking in his heart: "This guy is only responsible for dealing with a huge crocodile alone, so naturally he thinks everything is easy."

Li Shang pushed with both hands and slid forward three or four feet. When the front of the stone slab approached a row of cutting blades on the conveyor belt, a "click" sound was suddenly heard, and the upper and lower cuts were seen gradually penetrating into the stone slab.

A thin stream gushes out from the tip of the knife, carrying away the crushed sand and gravel chips and flowing along the previously prepared groove.

He kept pushing forward, and the debris from the cutting of the stone slab fell down with a rustling sound, and at the moment it was about to touch the bottom, it seemed to be completely cut flat by the blade.

While watching, Gongshu Pan hurriedly ordered: "Hurry up! Use tools to catch the edges that are about to be cut!"

The craftsman in charge of directing at the front position translated it into instructions and transmitted them to several slaves. These guys immediately walked to the back of the sawing area, ready to catch the edge materials that were about to fall.

Nowadays, rough stones without bark are used, and there is a small section of uncut membrane left on the edge, which usually does not cause serious safety problems. However, when performing this operation, one person reached out and touched the membrane out of curiosity.

Gongshu Pan quickly shouted to stop: "Don't move!"

The person who carelessly extended the hand might not understand these warnings, but at this moment his whole body shook and he stopped as if struck by thunder, standing still.

Seeing this, the Hainan foreman stepped forward, pulled him back to safety with one hand, then raised his stick and began to scold him.

The Hainanese slaves in the same row were not affected by this. On the contrary, their expressions showed a sense of pride and playfulness.

"That's almost enough... That's enough," Ying Zheng's face showed some pity after noticing this situation, so he ordered to stop.

In the following communication session, the responses of “I understand! I got it!” were loud and powerful, imitating the Central Plains accent, appearing quite respectful.

Gongshu Pan reluctantly re-emphasized the instructions to remind everyone: "When water-driven machinery is in operation, it is crucial for the operator to maintain a safe distance from the blade! Keep at least one foot of distance. Those who understand this, please raise your hands, otherwise please remember this lesson."

The workers raised their hands to show that they understood the meaning. Despite this, he still felt worried: "You should understand the rules I mentioned many times before. But why do you still not remember them clearly, and now the young master does not allow me to punish you again."

Li Shang just smiled calmly and didn't say anything. He walked towards the newly made flat stone and examined it carefully. He couldn't help but sighed: "Oh, it's cut so straight that you can hardly see any bends!"

Ying Zheng treated the wound of the injured Nanhai craftsman, then said with a smile: "There is a guide rail installed below, so it is naturally impossible for it to bend."

Seeing this, Gongshu Pan stepped forward and said to Li Shang: "When you push the saw, remember to pull the iron rod. This will make the upper part of the saw move outward a little, so that the saw will not hit the saw blade."

Li Shang tried to pull it and saw that the upper part of the saw bed and the wood tilted to the side a few inches. Then, when it continued to move backwards, the wood block no longer touched the saw blade.

"Oh, that's amazing!" Li Shang asked in surprise, "Is this also Lu Ban's secret technique?"

Gongshu Pan shook his head, his expression full of admiration: "No, this is not my secret, this is your majesty's wisdom!"

Li Shang nodded, with a matter-of-fact look on his face. If it was His Majesty who did it, it would be weird if he couldn't do what others couldn't do!

After trying to saw twice, Li Shang felt a little annoyed and called a craftsman to replace him.