The red cloth of the fourth machine was lifted up, and everyone was stunned.

This machine is a bit simple, with a closed wooden barrel lying across the shelf, with a large feed hopper on it, and a grille under the wooden barrel, and an aggregate trough under the grille. The back of the wooden barrel can be opened, and the side is a wooden ring driven by a foot pedal like a sewing machine. Open the cover, you can see that the wooden ring drives a wooden stick that crosses the wooden barrel, and there are iron chains on the wooden stick.

Charles introduced: "This machine is a corn thresher, which is made into human power considering the operating costs."

This kind of machine was seen when he was watching videos in his previous life. The structure and usage were extremely simple. Just put the dried corn cobs in the hopper on the top, and the corn kernels were knocked down by the rotating iron chains and then fell from the grille below. When the cover was opened, the corn cobs were shot out by the iron chains. The difference is that the engine was used in the video, which was manpower.

In fact, this machine is already practical, just wood is good, and you don’t need to make it. It’s probably okay to replace the chain with a strong leather rope. At most, you just need to step on it a few more times.

Everyone politely said "oh" a few times and then there was nothing left. This kind of farm work is far away from them.

Charles' face remained silent, but he had a bad premonition in his heart.

The next machine was a peanut shelling machine. When he returned to his hometown to play in his previous life, he saw his relatives who had dismantled and maintained the machine. The structure was not complicated, so he replicated it.

Then there is the oil press. He did not replicate the spiral oil press, which is a bit complicated, but instead uses magical active substances that will expand after passing through the magic power.

The slider of this oil press is below, a cylinder, and is the bottom of the material barrel, which is fixed on the top.

When in use, the slider drops to the bottom, and the oil cakes made from peanuts, soybeans and sesame are placed from the top to feed the barrel, and a piece of iron plate is placed at a certain distance, and finally the thick lid is fixed.

When the machine is running, the slider at the bottom will squeeze upwards under the action of the expanded magic active substance, and the oil will flow through the thin oil tank between the slider and the barrel, and finally flow into the oil collection plate and then load it into the barrel.

The oils consumed in this world are mainly animal oil. Vegetable oils such as rapeseed are not affordable due to process problems, and the oil crops are not planted in large areas. Therefore, Charles plans to take this opportunity to build and promote oil presses so that more people can eat oil.

The oil press is just one step. He designed a set of oil pressing technology based on the oil mill of his previous life, and planned to spread it on the mainland with "Aixi Snack".

However, the audience politely said "Oh" a few more times, and then there was no further information.

They can all afford oil, and it doesn't matter how the oil comes from.

Everyone has also "oh" passed by the feed pelletizer that is equipped with the oil press.

According to Charles's idea, the oil-pressed foot feed can be mixed with other things and crushed into particles, and then fed chickens, ducks, pigs, etc.

The next huge machine model finally made everyone interested, which was a device that produced slime glue products.

Its prototype is an injection molding machine, but Charles does not have the technology to replicate the injection molding machine, so he can only prepare a large barrel with a heating magic array next to it, with hot slime glue inside, and a "syringe" and mold take-off and landing machine with the pressure system of the oil press next to it.

When the magic power passes through the magic active substance in the mold take-off and landing, the mold is controlled to fall and tighten. At the same time, the piston of the "syringe" of the hot slime glue is pushed by the magic active substance. The quantitative hot slime glue is pushed into the cavity of the mold through the hot pipe. After the slime glue is cooled in different molds, it will become a slime washbasin, bucket, rice bowl, cup, clothes hanger and other things.

At the same time, the pipe leading to the "syringe" at the bottom of the container of the hot slime glue and the pipe leading to the mold are both equipped with check valves. When the piston of the "syringe" is pushed forward, the hot slime glue will not be pushed into the container. When the piston is pulled back, the hot glue on the other side of the mold will not flow back, and the hot glue in the container will be sucked into the cavity of the "syringe".

Professor Elbach is very satisfied with this big guy. The use of slime glue is now a new research direction. As soon as this machine comes out, the college has led its peers in this field for several years.

No one expected the last piece of red cloth to be a model of a building.

The brick and tile house, half a meter high and wide and several meters long, has no windows, and there is only a door on one side. There is a lot of equipment on the wall and next to the house. However, there is a long wooden board with two layers of chicken cages and chickens in the house.

Someone asked Charles: "Is this for raising chickens?"

Charles replied: "Yes, this is the chicken coop of a large-scale chicken farm designed by me for Nanhai Farm. It has been built now. I will put the chickens in when the weather is good in a while. Putting them here is a way to make up the numbers."

Someone asked again: "Is it so complicated to raise chickens?"

Charles replied: "It's not complicated."

"That is, several sets of air conditioning systems with ultraviolet anti-virus, a set of pure water system and automatic drinking water system, and a set of semi-automatic feeding machines. There are automatic egg collection machines and automatic chicken manure collection machines in the cage. I designed the Joyoung Chamber of Commerce to produce. In addition to putting chickens and catching chickens, it is not necessary to feed chickens and collect eggs."

At this time, the onlookers had new problems: "How can we hatch so many chickens?"

"No problem." Charles answered confidently, "Our hatch house is very successful. The first batch of hatched golden-skinned chickens have been around for almost half a month."

Those who care about this are just curious, and after being curious, it will be over.

The leaders' inspection was over, and Professor Elbach was generally satisfied with Charles' plan, and no problems were made by others, and then approved his application for personnel and supplies.

Charles finally breathed a sigh of relief when he saw a large group of leaders at the door.

"You seem a little unhappy?" Heidi asked, not leaving with the leaders.

Charles just smiled and shook his head, "It's okay, after all, nothing can be solved perfectly."

After he finished speaking, he turned off the lights and locked the door.

"Is there anything else?" Charles found that Heidi had not left yet.

Heidi shook her head gently, "Tomorrow is a day off, and the rest starts tonight, right?"

Charles smiled and said, "I wish you a happy day off."

Heidi followed him just two steps and said, "What are your plans for the day off?"

Charles shrugged and said, "I have no rest days, I have to do something else now."
Chapter completed!