Su Heng didn't give Fang Zi'an any face, and rejected Fang Zi'an's request, and was even a little annoyed. He felt that Fang Zi'an was messing with him. At this moment, he was immersed in the matter of making a steam engine, and it was impossible for him to take a break to do anything else, so he angrily left Zi'an and went back to work by himself.

Seeing Fang Zi'an standing there embarrassed, Qian Kang comforted, "Brother Zi'an, Master Su has this temper, you don't have to blame him." He has been really busy enough these days, and he is also under a lot of pressure. In this way, you leave the drawings, and I will persuade him to take the time to look at them. ”

Fang Zi'an smiled bitterly and shook his head, "That's it, I'm really a little excessive." Don't bother him about this. It's not too important. I didn't really want him to do it himself, I just wanted him to give him his opinion and see if there were any flaws in my design. ”

Su Lei, who was standing on the side, suddenly said, "Brother Fang, can you let me see this drawing?"

Fang Zi'an smiled: "Of course you can." ”

Su Lei took a few drawings handed over by Fang Zi'an, spread them on the ground and looked at them. Ban Yan smiled and said, "Brother Fang, these things don't seem to be difficult." I can make it for you. ”

Fang Zi'an was overjoyed and said, "You can"

Su Lei sniffed and said, "Don't forget, I'm Su Heng's son." ”

Fang Zi'an slapped his forehead and smiled, "Oh, I'm not confused, you are the son of Master Su, as the so-called tiger father has no dog, naturally he has learned a lot of things that ordinary people can't know." Would you like to help me make it, would you like to go and talk to your father?"

Su Lei nodded and said, "Naturally, I have to tell him, otherwise, he will beat me." ”

Fang Zi'an nodded and said, "Then you go and ask your father." But if he refuses, don't force it. I don't want him to beat you. ”

Su Lei nodded and walked quickly to the grass hut. Fang Zi'an watched him from afar and timidly walked to Su Heng's side and said a few words, Su Heng looked up at him, and then turned his head to look at himself. Fang Zi'an hurriedly pleaded with him. Su Heng turned his head and said a few words to his son, Su Lei then unfolded the drawings for Su Heng to see, and made a gesture, Su Heng looked at the drawings, then looked at his son, and then looked at Fang Zi'an, and finally nodded. Pointing to the drawings and saying a few words to Su Lei, Su Lei nodded again and again. Soon he gathered the drawings and walked towards Fang Zi'an with a grin.

Fang Zi'an knew that the matter was done. Su Heng agreed. Sure enough, Su Lei came to Fang Zi'an's side and smiled excitedly in a low voice, "Daddy agreed, and Daddy also pointed me out." ”

Fang Zi'an was overjoyed and said, "Great." In this way, you prepare some materials and tools according to the drawings, and I will pick you up early tomorrow morning and go to the station site in Qiantang Gate to build it. There are ready-made timber and plenty of manpower to mix at your disposal. How"

Su Lei nodded and said, "Okay." I've got what I'm supposed to use. In the evening, I'll take the time to ask Daddy about some key points. I believe that it will be made. I was finally able to build something alone for the first time. ”

The next morning, an iron stove was erected on the teaching ground of the Qiantangmen station. Fang Zi'an selected seven or eight soldiers to help, and after a while, the teaching field became lively. The clanging of iron and the chiseling of wood

The sound sounded, and the work of building firefighting tools officially began.

Fang Zi'an designed several fire-fighting equipment, the first of which was a water hose. It is inconceivable that the people who put out the fire do not have a water dragon. Relying on the primitive skin bag to poke the skin bag to extinguish the fire, or splashing water with a bucket and wooden basin to nourish the water with a pump, or using the so-called hemp shaped like a mop to dip the water pier fire, is not at all what a regular fire extinguishing team should do. It is necessary to have a water dragon that can jet water for a long time. In order to achieve the effect of jetting water, because there is no power to pressurize the water flow, Fang Zi'an can only use the principle of water tower to send water, and design a water tank that can raise the water tank to a certain height and use the drop water pressure to spray.

In fact, the difficulty is not great, there are two ways, one is to set up a wooden crane to lift the water tank into the air. It's a simple and effective solution, but it's a bit time-consuming and labor-intensive. After all, the wooden crane needs to be built on site, requiring more than a dozen long logs and a large number of ropes to assemble and form, and it also needs to occupy a huge amount of space. It takes a long time, is not very convenient and fast, and is limited by the space. After all, not all fire sites are spacious enough to build a wooden crane. Not all fires can wait a long time to prepare. Fang Zi'an wanted a faster, more convenient way to raise the water tank anytime, anywhere. That's where mechanical power comes in.

This kind of lifting device designed by Fang Zi'an is a cross-type lifting device. Resembles an iron fence gate erected. When there is no need to lift it, the iron bars are folded and hidden under the water wheel, and when needed, the iron bars are stretched crosswise, lifting the water tank to a height of more than one person. This creates a high level of water pressure that can be sprayed above the second floor and beyond.

The problem was that there was no power unit, no hydraulic device, and Fang Zi'an needed a very large water tank to ensure that there was enough water. That's a big problem. Fang Zi'an's solution is rotary jacking. It is to install a thick circular spiral iron rod below the water tank to fit the winch behind the car with another iron shaft of the spiral card groove, and when the winch is rotated by manpower or animal power, the two spiral iron shafts are occlusive and rotated, generating a huge jacking force to promote the water tank to rise. The iron fence at the four corners serves as an auxiliary support, and is fixed with a bolt after jacking, which can stay fixed at different heights to adjust according to different fire conditions.

To be honest, this thing seems a little stupid, but that's compared to the afterlife. In this era, it is already a very remarkable and ingenious design to be able to come up with a spiral jacking and turning the lifting force into the power of the winch to rotate. Otherwise, the large water tank filled with thousands of catties of water designed by Fang Zi'an will not be able to lift it to a considerable height in a short period of time by relying on manpower.

The reason why Fang Zi'an asked Su Heng for help was that the difficulty was in the creation of two biting spiral iron rods. This is not something that Fang Zi'an can make by himself, it must be done by professional people. Of course, this device does not need to be too delicate, as long as it can be bitten, so that it does not slip, and is strong and usable. So Fang Zi'an also dared to ask Su Lei to help.

Su Lei is young, but he is indeed influenced by his family, inherited by three generations of masters, and he has a style of a general. Under his methodical command, hundreds of iron bars were forged, and Fang Zi'an's design was more subtle and increased

Double-hole hinges were added, as well as lateral iron bolt support on the sides. For example, the single-hole anchorage in the Fangzi'an design and the way of carving grooves on the iron bar itself are more stable and grasping. When Fang Zi'an was amazed, Su Lei was not greedy for merit, and told Fang Zi'an that this was the result of his father's guidance.

In the evening, the four iron fence-like telescopic bases have begun to take shape. And under the leadership of Li Dalong, a heavy cart base made of thick wood has also been completed.

"Almost, let's continue tomorrow, not at this time. Brother Xiaolei, you go home with me, let's have a good meal and sleep, and come back tomorrow. Fang Zi'an stopped with a smile. Su Lei was also really tired, so he nodded and agreed, Fang Zi'an asked Lei Hu and them to be guarded tonight, took Su Lei home, and ordered someone to get some good dishes and good food, Su Lei is not very old, but the amount of food is not small, eat enough, take a bath and go to bed.

The next morning, everything continued. The most important point is the construction of two lifting spiral spindles. Because it is a thick iron shaft with an overall length of six feet, each one weighs at least 300 catties alone, so it is quite difficult to build. Fang Zi'an originally thought that this kind of thing needed to be made into a mold and poured out, but he didn't expect Su Lei to create it directly on the iron rod. His method was to use a wedge-shaped iron drill, and when the iron rod was red-hot and lay across the anvil, he aimed the iron drill in the direction and struck it again and again with a sledgehammer. This creates a spiral groove along the periphery of the iron rod. Of course, this saves time, but it is extremely difficult to operate.

Fang Zi'an decided to play the wheel hammer himself, because the strength and accuracy of the blow need to be guaranteed. Su Lei is young and lacks strength. Others may have enough strength, but not enough. Whether you fight deep or shallow, it's a failure. It needs to be solved in one step.

After testing the strength, the official operation began. The iron rod burned red. Li Dalong, Lei Hu and another man used iron pliers to clamp the iron rod and lift it out and put it in the semicircular groove of the anvil, Su Lei used the thin pliers to clamp the iron chisel to align himself to the position, and shouted "come"

Fang Zi'an came down with a hammer, and the sparks splashed everywhere, when there was a loud sound. An oblique groove appears on the iron rod. Su Lei was overjoyed and said, "Beautiful, this strength is just right, hurry, come a few more times, take advantage of the fire." ”

When the sparks flew in the air, a complete spiral groove appeared, and the depth of force was flawless. While praising Su Lei, he quickly used a small hammer to beat the arc with an iron brazing inside the groove, and beat the thread into a shape that is wide inside and narrow outside, which is the key point that will not slip off after biting.

It took two hours for a black iron rod with a spiral groove to take shape. It's completely made, but it doesn't look rough and beautiful.

After a short break after lunch, the group continued to do so, and in the evening, another spiral rod was built. So far, the main components of the entire waterwheel jacking have been completed. The waterwheel, including the wheels, body shafts, and water tank, was also basically completed. Everyone couldn't wait to see what it would look like, so they suggested that it be done overnight, and Fang Zi'an was also looking forward to it, so he agreed to assemble it overnight. That night, the torches and lanterns were lit up in the middle of the church, and the sound of banging and banging rang all night until dawn.

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