After the threshing machine was ready, Zhang Ran wanted to take it to the threshing farm to test it immediately, but when he looked up and saw the afterglow of the sunset, he suddenly realized that it was already evening.

At this time, it was probably too late to pull the rig into the field with the rig. So Zhang Ran could only stop the restlessness in his heart, and planned to try again tomorrow morning!

During dinner, my mother, Zhang Li, came back from the field and saw the ripping machine placed in the yard. She couldn't help but curiously said, "Ran'er, are you busy making this thing at home today? What is it for?"

Zhang Ran smiled slightly and replied: "This is my newly designed grinding machine, which is used to replace the flails for threshing millet!"

"Threshold?" Zhang Li stared at the strange-looking wheat-killing machine in front of him and looked carefully, and couldn't help but feel suspicious: "Can this thing really thresize the millet?"

"Of course!" Zhang Ran nodded with great affirmation, and then replied confidently: "If my mother doesn't believe it, we will know it when we use it tomorrow!"

"Well~" Seeing this, Zhang Li nodded slightly, glanced at the ramming machine again, and turned around to the kitchen.

After dinner, Zhang Ran took the initiative to ask for a night to guard the threshing farm instead of his mother.

Zhang Li was originally opposed, but Zhang Ran insisted on this. Seeing this, Zhang Li didn't know how to say anything else, so he could only remind Zhang Ran to be careful at night and not to catch a cold.

In recent days, the Zhang Ran family has basically harvested all the millet in the fields, so the threshing yard is full of grass and valley piles. After Zhang Ran arrived at the threshing yard at night, he found a little bit of a grain pile, and pulled a small nest with his hands, and went inside. It was both resistant to wind and warm. In addition to being a little bit stubborn, it was not much worse than the kang at home.

...

The next morning, Zhang Ran got up from the valley early. Zhang Ran returned home for some breakfast, and couldn't wait to pull his threshing machine to the threshing farm with a donkey cart.

With his mother, after unloading the grinding machine from the donkey cart, Zhang Ran brought a bamboo stool and sat in front of the grinding machine, pointed to the roller of the grinding machine and said to his mother: "Mother, when the shaft is rotated, you put the ears of grain on it! Let's try how effective the grinding machine is!"

"Okay!" Mother Zhang Li nodded happily, then bent down and picked up a bunch of grains. According to Zhang Ran's instructions just now, he placed the other end of the grain on the roller.

"My mother, get ready! I'm going to start!"

As he said that, Zhang Ran stepped on two thick wooden sticks with his feet, and quickly started pedaling like he was pedaling a bicycle.

As Zhang Ran stepped on the pedal, the wooden gear began to rotate quickly. As the two gears were linked, the rollers in the wooden frame also began to rotate quickly.

The high-speed rotating roller is covered with spikes. When the spikes come into contact with the spikes, the grains of the spikes will be quickly hit by the spikes. A bunch of millets will be left with bare straw in just a dozen seconds.

"This... this thing threshed so fast?"

Zhang Li saw with his own eyes that turned into bare straw in front of the roller of the grinding machine. He was a little doubtful if he was dazzled.

Zhang Li, who was a little unbeliever, quickly picked up a larger bunch of granite and placed it on the roller.

However, the result was still no different from the moment. This large bunch of millet took only a few more seconds to quickly peel off the grain and became a pile of straw.

Seeing this, Zhang Li couldn't help but exclaim: "It's so amazing! Ran'er, the grease-making machine you made is really useful!"

"Of course!"

When he stepped on the grinding machine with his feet, Zhang Ran naturally saw his mother's every move. When he saw the grinding machine threshing the millet so smoothly, Zhang Ran was instantly filled with joy.

The success of the pedal-type grinding machine immediately increased Zhang Ran's confidence. Looking at his mother's shocked expression, Zhang Ran couldn't help but waved his hand and said proudly: "My mother, hurry up and bring some more millets. Let's try to finish all the remaining acres of millet today at one time!"

"well!"

Zhang Li seemed to have just woken up, and quickly bent down, picked up some millet and put them on the roller to start threshing the millet with a grinding machine.

The mother and son picked up millet and the other pedaled the machine. The cooperation complemented each other. With the efforts of the two, a large pile of unthreshed millet quickly began to decrease at a speed visible to the naked eye...

...

Compared with the foot-pedal grinding machine that can operate one person in later generations, Zhang Ran’s “pedal grinding machine” is obviously much inferior, and the workmanship is also extremely crude.

The principle of the grinding machine in later generations is closer to that of the combine harvester. The chain shaft transmission mode adopted is a manpower machine, but you only need to use your feet to step on it, which saves time and effort. One person can complete a complete set of grinding and rice threshing work.

The all-wood grinding machine made by Zhang Ran is more like riding a bicycle. It is not only very labor-intensive, but also requires two or more people to operate together.

The gap between the two is very obvious. The one Zhang Ran did is only equivalent to a simple version and is very bulky.

However, even if Zhang Ran’s grinding machine is not as efficient as the foot-pedal grinding machine in later generations, it is still many times more efficient than the current way of flailing.

In just one morning, Zhang Ran and his son took off all the millets from nearly five acres of land. Piles of millet filled the threshing ground, like hills, and looked extremely spectacular.

At noon, the sun was very fierce, and Zhang Ran, who had been driving the mill for a morning, was very tired, so Zhang Ran and his son came to the shade of trees not far from the ridge of the fields, preparing to take a break, drink some water to rest, and then work.

At this moment, the neighbor of Zhang Ran’s family, the sixth uncle in the next field, suddenly came to Zhang Ran and his son with a pottery jar, and smiled at Zhang Ran, "Brother Ran, are you tired? Come and have a drink of water!"

"Uh" Looking at the clay pot handed over by Uncle Six, Zhang Ran was stunned for a moment, quickly took it, and smiled at Uncle Six, "Thank you, Uncle Six~"

Then, he took out a pottery bowl from the bamboo basket he brought home, poured two bowls of water, and handed it to Uncle Six and said, "Uncle Six, you can drink some water together!"

"Good!" Uncle Six agreed with a smile, took the pottery bowl, took a few sips of water, then sat beside Zhang Ran, and smiled at Zhang Ran: "Brother Ran, I have been watching from a distance for a long time. What is the thing on your threshing farm? Why did you pick up corn so quickly? Good guy, I beat out such a lot of corn in one morning!"
Chapter completed!