Wang Jian has seen such a machine before, but this is the first time Wang Jian has seen it using this gear transmission. Wang Jian could have thought that this gear transmission would rotate with the so-called central shaft in the middle, but what would it do if it rotates? Can this thing be used to encourage the sails?

As expected, Wang Jian had expected, there was a platform at the top of the shelf. There were no one on the platform. I only heard Lao Yang's command, "Start!"

A heavy footsteps began to sound, and the friction sounds made by the sour metal biting began to come out. As the sound of the rotation footsteps gradually accelerated, the sound of the rumbling ball rolling also came over.

The entire spiral pulp central shaft connected to the disc gear is gradually increasing its speed. The sound of the turbulent wind breaking is also uploaded on the spiral pulp, and the sound of slapping the air is also shocking.

As the disc gears operate, the huge spiral pulp behind can no longer be seen as it originally looked. Only the phantoms of the central shaft and surrounding spiral pulp blades can be seen, and the original spiral pulp is not seen.

Wang Jian had never seen such a sound. He didn't expect that such two east-west combinations would have such a terrifying sound, but what's the use? Wang Yuan didn't even know what Han Zhenhan showed him.

This is not a mistake for being someone. They have no imagination and don’t know where this thing should be applied to. Han Zhenhan has no choice, but this big device was seen by Han Zhenhan himself.

Walking directly behind the rotating spiral impeller, observe the swing amplitude of the central axis, is it always at a point, listen to the sound of the entire central axis when it is driven, Han Zhenhan called, Lao Yang, and told him,

"Try to change the form of hand push rods to pedals, which will make it easier to change personnel. In addition, the subsequent equipment needs to be reduced accordingly, and it is also made with you according to the size of the ship. The subsequent work is the top priority, otherwise this thing will be made without being able to be installed, but it will become a big fan."

After Han Zhenhan gave in, he turned around and walked to the edge of a large sink under the huge shelf. Wang Jian was still thinking about what Han Zhenhan said. Han Zhenhan really wanted to put this big guy on his clothes, but wouldn't it be too heavy to install such a big thing?

Just as Wang Jian was thinking about how to use this big guy, he saw Han Zhenhan picking out a piece of bamboo with a length of arm from the big sink. Wang Jian walked in and saw that the bamboo was dug up from the middle, and a piece of iron lump was fixed inside, and a roll of thin iron sheet with a large gap in the middle.

One end of the iron sheet was wrapped around the edge of the bamboo, and the other end was fixed in the middle of a small disc. Han Zhenhan was turning a wooden stick in the middle of the thin iron sheet. Seeing Wang Jian coming, Han Zhenhan put half of the bamboo tube that had been twisted several times into the water.

At this time, Gao Yuan also walked to Wang Jian's side. Looking at the bamboo tube in Han Zhenhan's hand, I wondered what Han Zhenhan had to show them. Just after Gao Yuan arrived, Han Zhenhan's hand pressed on the iron stick was released by him. The bamboo tube ran up in the sink, and there was a burst of white splashes of water.

Looking at Wang Jian and Gao Yuan's eyes were straight. What's so magical? Wang Jian ran to the other end of the sink like a child who saw a toy, picked up the bamboo tube that was not moving forward, picked up the small spiral made of wood spliced ​​at the tail, and then looked at the disc with iron rolls.

After looking for a while, he also imitated Han Zhenhan's appearance, turned the small wooden stick, and then let go of his hand. The small spiral behind the bamboo tube had just been fished out of the water, and there were still a lot of water splashes on it. With a squeak, the water splashes on the spiral pulp shook Wang Jian's face and wet the old man's gray beard.

But not only did not get angry, but also laughed happily, muttering constantly.

"So that's it, so that's it..."

After saying that, it was not over yet. He turned the small wooden stick on the iron roll several times before putting it back into the water. But he saw the half bamboo tube moving forward in the sink again.

Gao Yuan was also playful like Wang Jian, but she didn't know what this thing was for. She just walked into the sink and looked at the bamboo tube moving forward in the water until it gradually stopped.

When the small bamboo tube stopped in front of her, she picked up the bamboo tube, looked at it for a while, and exclaimed,

"Ah, this..."

Gao Yuan looked at the bamboo tube in his hand and looked at the huge spiral that was slowing down and rotating not far away. Han Zhenhan looked indifferent. Although he was very angry, it made Wang Jian and Gao Yuan no longer have doubts. Wang Jian sowed the water in the sink with his hands, thinking. Gao Yuan held the bamboo tube and looked at Han Zhenhua and stopped talking. Lao Yang looked at the side as the few people kept giggling.

"Okay, let me tell you, this small boat can provide power with this spring. Well, that iron roll is the spring, but our big boat will not be so fast. If we look at it according to the proportion, in the calm water, the speed of the boat should be able to reach the speed of horses running on land..."

This is Han Zhenhan's conservative statement. In fact, if the ship is not fully loaded on a calm water surface, the power provided by this spiral pulp is definitely not less than the smooth sailing speed.

In the case of countercurrent and wind, the boat speed will be two or three times faster than the speed of the fibre pulling fiber, which is equivalent to the speed of a person jogging. These are just spirals designed. As Han Zhenhan and Lao Yang said, if the hand-pushed roulette is replaced with a foot pedal to drive the gear to move the entire driving wheel, the entire speed can be greatly improved.

However, there is another huge problem with this spiral, which is because of the material problem, that is, the material of the copper shaft is relatively not hard enough, and there is no suitable braking method in the design. In other words, the ships installed with this huge spiral will be difficult to perform operations such as emergency stops and rotations.

"You kid is such a genius. You can think of this thing. It's definitely okay to go upstream..."

Wang Jian slapped the water in the sink hard, and suddenly a loud shout scared Han Zhenhan. However, Gao Yuan held the bamboo tube in his hand for a long time and said nothing, and only asked Han Zhenhan for the experimental model.

"Can you give this to me?"
Chapter completed!