I really don't want to be a rebel [infrastructure]

In fact, the crawler is just a synonym for him. To be precise, it should be called a conveyor belt, but it is a good way anyway.

The treadmills of later generations put a motor on one end of the running board, and a roller on the other end, and then the motor rotates to drive the track forward.

Luo Shixing's manual roller machine does not need a motor, it only needs rollers at both ends to make the track rotate.

As for how to make the rollers rotate, it's not too difficult, just make a gear on the side of the big roller on the top and the small roller at the front of the tablet, and then drive it through the chain.

Just when Luo Shixing's design came here happily, he realized a problem, the chain... how to solve it?

He originally designed a gear similar to that of later generations, but the chain is actually something that requires precision machining, because the parts on it are small and flexible.

These days, if there is no high-tech industrial equipment, it can only be built by hand.

One of the characteristics of hand-made is that it is extremely time-consuming and requires a lot of money.

But the problem with them now is that even if they want to spend money, they don't have any craftsmen who know how to do this.

Luo Shixing improved the craftsmanship of the Ouluo tribe's ironmaking. Do you expect their craftsmanship to be more developed?

Of course their craftsmanship on the woodwork is pretty good.

Luo Shixing thought for a long time and finally had to give up the chain, and then enlarged the gears at both ends to mesh with each other, so that when the handle was turned, the large gear would drive the small gear, so that the rollers on both sides rolled together.

But this will cause another problem: how to make the big roller on the top flexibly adjust the height.

If it is a chain, the length of the chain can be adjusted according to the height of the rollers, and this flexible adjustment can allow the roll machine to be used in more places.

If it cannot be adjusted, then the oil pressing roller can only be used for oil pressing.

Although special planes are very good, but they have limited resources now. The rapeseed in hand will be planted at the end of August and early September, harvested in April, plus drying and picking, and it will not be available until May. This stuff.

If it is made now, it will have to be placed for a year before it can be used, but it cannot wait until next year to do it, or if there are any technical problems that need to be solved in the middle, it will delay time.

For this matter, Luo Shixing lost several hairs, and at night he was running on the roller in his dreams, like a cat who was thrown on a roller treadmill to lose weight.

However, he does not need to lose weight, and of course it is impossible to lose weight in his dream.

But dreaming is not completely useless. In his dream, Luo Shixing saw that there were not only two gears on the treadmill for cats and cats. After he woke up, he realized that he could use multiple gears to adjust the height.

The size of the upper and lower gears is fixed, and the frame of the roller machine can adjust the height of the upper large roller, and the lower plate and the roller gear remain unchanged.

This time, the upper and lower gears do not need to be engaged. After adjusting to a suitable height, install a suitable intermediate gear, so that when the handle is shaken, the rotation of the large gear will drive the intermediate gear, and the intermediate gear will drive the gear on the flat roller to rotate.

This can also achieve the purpose of double-ended rolling, and only need to make multiple intermediate gears, and place suitable gears when adjusting the height.

After solving the gear problem, Luo Shixing happily drew a thumbs-up gesture on the clay tablet: "Hey, I'm so smart!"

However, the smart little lynx still has to face the next problem - how to choose the conveyor belt on the tablet.

This Luo Shixing thought for a long time but couldn't think of a particularly good substitute. This thing needs to have enough softness and enough toughness.

He once thought of using bamboo, but the toughness of bamboo is also limited, and it is impossible to make it so soft.

In the end, he dug out a piece of pigskin from the warehouse, made gestures and felt that it was just right, and it could be put on just after simple sewing.

Anyway, the roll machine he made is not particularly big. If you need a large roll machine in the future, then... think of a way!

Hey, that's all I can do so far.

Luo Shixing drew the drawings of everything, calculated the data by the way, and handed it over to Cheng Jingwei.

Now Cheng Jingwei is able to see the Arabic numerals on it very skillfully. The only thing that makes Luo Shixing feel inconvenient is that every time he needs to convert the units such as meters or centimeters into inches or feet, and a little longer Zhang... Oh, Temporarily unavailable.

Cheng Jingwei got the task and resigned himself to taking people to do the handicrafts. Luo Shixing specifically instructed: "The roller doesn't need to be too heavy, it's about the same."

Because of the stable structure, the weight of the roller itself and the pressure brought by the bracket are not used when rolling, so it does not need a heavy enough stone hammer like when beating soybeans.

After hearing this, Cheng Jingwei knew what he was doing, and he had assembled the whole roll machine in his mind.

He went to toss the roller machine, and Luo Shixing started to process the rapeseed. Not every sun-dried rapeseed can be used. It is necessary to dispose of the ungrown seeds and the adulterated peels.

This is easy, just put it in the basket and shake it, and use the wind to blow away the light and fluffy peels after drying.

After the peel is blown away, the shriveled seeds are sifted out, and after they are done, the frying starts.

Later generations will set a certain temperature when frying rapeseed, for example, no more than 150 degrees. Now there is no such condition, and Luo Shixing has no way to test it, so he can only judge by experience.

It is said that it is enough to fry the rapeseed until it smells good. Luo Shixing stir-fried the whole process in front of the stove, thinking that if he waited for a bumper harvest of rapeseed next year, he must find a way to get a more convenient frying pan.

The rapeseed can be ground after frying, because there are not many rapeseeds, so Luo Shixing directly grinds them with a stone mortar.

As for the roller machine, after it is made, it will be tested with another handful of rapeseed, and then it can be used elsewhere.

As the saying goes, "Rapeseeds are ground into mud, and sesame seeds are broken into skins." This formula of later generations has already told everyone how much rapeseed needs to be crushed.

In fact, at this point, the next oil extraction step is basically the same as soybean oil.

And rapeseed is also worthy of the title of the largest edible vegetable oil raw material for flower growers. The oil content of the seeds is much stronger than that of soybeans. Just a small handful of rapeseeds can produce half a bowl of oil!

It's just that the oil can't be eaten after being squeezed out, it needs to be precipitated and then filtered several times.

But in any case, the oil is really squeezed out!

After the oil came out, Luo Shixing ran all the way to find Cheng Jingwei holding a small bowl.

At this time, Cheng Jingwei and Cui Shenji were arranging the construction of the house according to Luo Shixing's plan.

When Luo Shixing passed by, the two seemed to be arguing about something.

After meeting Luo Shixing, the two of them stopped talking at the same time. Cheng Jingwei put on a smile and asked, "Lynx cat? What are you holding in your hand?"

At first, Cheng Jingwei thought that Luo Shixing would bring him food, but then he was wrong, there must be outsiders around when he was handling things in his small flower hall, and if Luo Shixing would send him food, he would definitely not just send a bowl.

Just when he was puzzled, Luo Shixing carefully put the bowl in front of him and said happily, "Look at it, I just made it."

Cheng Jing looked down slightly and found that there was a slightly cloudy brown liquid in the bowl. He lowered his head and smelled it and could smell a fishy smell faintly. Although he didn't know what it was, he knew what Luo Shixing was doing recently.

The little lynx is very focused when doing things, and rarely gets distracted by other things during the process.

Think about the fact that the little lynx has been tossing the rapeseed recently, and he couldn't help but ask tentatively, "This is...the oil squeezed from the rapeseed?"

Luo Shixing said proudly, "Yes, rapeseed oil!"

Cui Shenji on the side asked in surprise, "How many rapeseeds did you use?"

Luo Shixing stretched out his hand and said, "A handful, oh, a handful more, and some rapeseeds that are not suitable for oil extraction were selected in the middle, and then added."

When he said this, both Cheng Jingwei and Cui Shenji were very surprised: "How can so much oil be produced by ordering rapeseed?"

Luo Shixing was very happy: "Yes, it can be planted in August. This thing is not difficult to grow. It has a much higher oil yield than soybeans. It looks good. Next year we will be able to eat oil freely!"

Ahem, in fact, it can be realized now, but that's all it means.

Both Cheng Jingwei and Cui Shenji showed smiles on their faces, and Cui Shenji even asked, "Is there any other place for this rapeseed?"

Luo Shixing tilted his head and thought for a while and said, "This thing should have come from the west, and it should be west of Suiye City, but it doesn't seem that rapeseed can be used to extract oil there, right?"

If there is, Chang'an must know that Cheng Jingwei and Cui Shenji will not be so surprised.

Cui Shenji was a little surprised: "Is the original place of growth actually over there? Is this method known to no one except you?"

Luo Shixing said: "It should be that no one except the family knows."

He fiddles like this at home, and others can see how he tosses. There is nothing special about this squeezing method, and it is not easy to restore it.

Cui Shenji immediately said: "Let everyone keep a secret. Mines will always be mined one day. In fact, I don't agree with selling mines. It would be a better choice to sell oil or other items."

Cheng Jingwei tapped the book table with his right index finger and nodded slowly: "That's right, so we won't be short of money. I still stick to my idea and use glutinous rice mortar directly."

Luo Shixing understood Cui Shenji's idea of ​​keeping the formula secret, but he didn't understand what Cheng Jingwei said later, so he looked at the two people suspiciously: "What are you talking about?"

Cheng Jingwei explained: "Didn't you say before that the rainy season is coming? Now it is about to enter the rainy season. If we don't repair it, it may be too late. Our canal leads directly to that big river. If we don't make preparations in advance, if the flood season comes, I'm afraid that the river will be flooded." Backfilling. Cui Weng said to use lime mortar directly, but I want to use glutinous rice mortar.”

Luo Shixing's smile slowly disappeared: Gan, you actually forgot the most important thing!