Chapter 69 (2/2)

Now it's not the same. In order to make steel, we have to have transportation tools with heavy load. Otherwise, how much coal and iron ore can we transport in a year with human power alone?

Therefore, when smelting the first batch of steel, whether it's OK or not, the stone bear prepared the casting bearing bush early.

After the bearing bush is cast, it can be directly inlaid on the frame to make direct contact with the axle made of wood.

There are many excellent hardwoods in North America in this era. Among them, red oak and walnut produced near Dawu Mountain are excellent hardwoods. The hardness of red oak is greater, which is suitable for making axles. Although the hardness of walnut is not as good as that of red oak, walnut has high quality toughness and earthquake resistance, so it is the best to make wheels with walnut.

At this time, red oak trees are everywhere. A big oak tree can make many excellent axles. No matter how hard the axle is, it can't be as hard as a two centimeter thick iron bush. As long as the bearing bush can't be worn out, it won't make much difference to replace the axle.

Moreover, building an ox cart is not much more complicated than building a Quyuan plow, so Lao Mu's family, together with more than 20 helpers, built two four wheeled ox carts in just two days.

Of course, this kind of ox cart is the one with a turntable on the front axle, that is, there is a wooden turntable on the top of the front axle that can turn 360 degrees. The turntable is installed on the load-bearing axle below, and the upper layer of the turntable is the frame.

In this way, when turning, the turntable can move freely, so that the four wheeled ox cart can turn at a small angle.

As for the pulling animals, it is natural to tame the bison with infinite strength. Although there are not many bison tamed in the tribe now, more and more bison will be tamed in the future. It's nothing to pull a cart out of two cows.

The two newly built ox carts immediately became the most famous stars in the tribe. Both adults and children want to take a ride in the ox carts and feel the taste of traveling without walking by themselves.

It's absolutely no problem for this cart to pull a thousand kilos of goods. Even if it's pulling people, it can pull seven or eight adults at a time.

A pair of stone mills weighs about 200 Jin. Ten pairs of stone mills and two ox carts can be pulled from the tribe to the foot of the small salt mountain at one time.

Under the arrangement of the stone bear, the grass shed is also set up at the foot of the small salt mountain. At that time, these ten pairs of stone mills will be placed here, specially used to grind the salt blocks mined from the salt mountain.

In addition to the grass shed where the stone mill was placed, there was also a grass shed for boiling salt. The stone bear was originally used for the big iron pots made by the clansmen.

Originally, Shi Xiong made 20 big iron pots for the tribe. This time, because he wanted to boil salt, he had to come out with five big iron pots.

This kind of big iron pot is not small. It's about 20 jin for one, which is about the same size as the later Liuyin iron pot.

Now these iron pans have been pulled over, and the mound is on the newly built earth stove.

But you don't need coal to boil salt. Just pick up some firewood from the woods is enough to boil salt.

In the early morning of this day, almost all the people in the tribe went out, and even the people who cultivated and sowed suspended their work. The news that the guardian is going to teach the people how to make salt has spread all over the tribe in the past two days, and all the people will not miss this opportunity.

Although food is very important, it is undoubtedly more important than salt