However, the wisdom of the working people is so strong that they not only built ships, but also invented several advanced engineering equipment in the process of construction. For example, the original crane that uses the pulley block to lift heavy objects, it can lift more than one ton of wood with the cooperation of two sets of brackets with the same large door frame, as long as the bracket is high enough and strong enough, it can be raised indefinitely. For this reason, the Wen family led people, with the assistance of Qi Zu, to build two wooden towers more than 30 meters high next to the slipway of the shipyard, all of which were fixed by giant trees of the thickness of the arms with steel rivets of arm thickness, and the wooden towers were topped by four thick horizontal logs. With this big guy, the speed of shipbuilding increased exponentially. In the past, it took several days to use dozens of people to carry large timber on their shoulders, and it was easy to lift dozens of meters with the pulley group under the wooden tower in minutes, and put it wherever you want to put it on the ship, the whole is a primitive gantry crane, which is nothing more than that it cannot move back and forth.

There is also a saw blade driven by a waterwheel, which Hong Tao drew with reference to the structure of the Dutch windmill sawmill, and he didn't expect to get it. Because he couldn't make bearings in this era, he couldn't think of any way to replace the bearing transmission. Unexpectedly, these carpenters still made it out, they made a simple gearing system out of hardwood, and then added levers and crankshafts to drive the stripsaws to reciprocate, just like the piston system was reversed.

With this thing, no matter how big the wood is, as long as it can be transported to the ground of the sawmill to roll the wood, and the waterwheel is started, the wood will be sawn into planks, sticks, and sections of wood in minutes, and the price paid is that Qizu complains every day. Most of the steel he had forged with great difficulty was made into saw blades for sawmills. The saw blades of this era are still not tough enough. The sawing speed is high. It often anneals or breaks.

At this time, Hong Tao can stand up and use his limited knowledge to perfect this huge sawmill. The addition of several large hoppers that can automatically drip water and oil not only lubricates the large wood gears and shafts in the sawmill, but also allows the saw blade to cool down a little, reducing the loss of the saw blade.

Hong Tao didn't contribute much to these inventions, he spent most of his time at sea, and he didn't have a chance to contribute. The lame little grandson of the Wen family just put the knowledge he had taught into practice, and in fact, there were quite a few of those pulleys on every sailboat. Everyone watched every day, but no one thought of using them to lift heavy objects, including Hong Tao. Because he doesn't go to shipbuilding, he can't think of the use of it. But these things will always be thought of, and this is also the effect that Hong Tao has been pursuing, he just needs to create, speak, and write what he knows, and put it there, and someone will think of it sooner or later.

"Wen's crane! Hong's sawmill! It was the name unanimously approved by the board of directors, and he had Zizu cast them on a large bronze plaque, which was nailed to the pedestal of the crane and sawmill. You can be seen every day. Not only this time, Hong Tao announced on behalf of the board of directors. No matter where you are, any such crane and sawmill must be built with the consent of the little grandson of the Wen family and yourself, and at the same time, every crane and sawmill must have this bronze medal, which is the rule. In the future, other inventions and creations will also be handled according to this rule, and people in Jinhewan cannot violate it, and people outside can't either. Whoever dares to steal and steal, the battleship will help you get justice!

Not only were the Wen family rewarded, but so were the seven slaves who were killed and wounded. All disabled people are officially registered as Jinhewan residents, and enjoy all welfare care until death, and those who have family members are also naturalized. The two dead slaves will be buried on the hill to the east, not just buried, and a monument will be carved to commemorate them. At present, there are only three stone tablets there, the first one is Weng Haibo, the little grandson of the Weng family who was killed by the mast, and the remaining two are for the two slaves. The hill with the best scenery has been designated by the board of directors as a cemetery for heroes, and anyone who dies in the service of the development of Jinhewan, whether it is an official resident or not, whether male or female, will be buried. During the New Year's holidays, all the members of the board of directors and the children of the school will worship together, and a temple will be built for them in the future.

This is spiritual food, and it is not possible to have material food without spirit. Hong Tao is not particularly good at playing the Spiritual Victory Method, and can only imitate it according to some conventions in his previous life, as for whether the effect is good or not, just look at the walking posture of the Wen family and the joy of those disabled slaves. It should be very effective, otherwise there would not be so many people in the future who will play this set over and over again. Hong Tao doesn't really believe in this thing, but he is willing to try everything that is useful, he is a pragmatist, as long as the result is good, it doesn't matter what he does.

Fifteen zhang! In fact, more than fifteen zhang, the Wen family still retains the previous shipbuilding tradition, that is, only the length of the keel, regardless of the overall length of the hull. If you count them all, this ship should be about 48 meters and 70 centimeters, and the ship type is still a U-shaped bottom European sailing warship like the Haibo, with a displacement of about 1,200 tons. If calculated according to the shipbuilding unit of the Song Dynasty, this ship reached 20,000 materials, and now Hong Tao finally converted the material into this unit, and the cost-effective material is one stone, that is, less than 60 kilograms.

In fact, the displacement of this new ship can be larger, reaching 1500 tons, but in order to ensure the speed and flexibility of the ship, Hong Tao has made the ship a lot thinner. This is possible to speed up and turn the rudder faster, but it is not without disadvantages, that is, the seaworthiness is reduced. The larger the ratio of the hull to the width of the ship, the greater the roll amplitude, and it is easy to capsize if it is not handled properly in high sea conditions.

How do you make a sailboat stable and fast, while still maintaining the necessary sturdiness and comfort? Hong Tao is really unable to solve this problem, the ancients have been studying for hundreds of years before the steam engine was used to power ships, but they still did not find the most suitable solution, and they always had to choose between these items. Since this ship is a warship, Hong Tao can only give up comfort in exchange for speed and firmness. However, Hong Tao also took some compensatory measures at the same time, such as deepening the bilge depth and increasing the freeboard height, which can slightly make up for it, which is better than nothing.

Anyway, Hong Tao's ship is a four-way ship, it does not have the towering stern and bow of the Clark type, nor does it have a square stern like the Galen type, and it should have the shadow of a Dutch armed merchant ship called Floater. But the new sail is also very distinctive, neither a sail nor a spinnaker, but a mixture of the two. The bow mast is used to open the bow jib, the foremast and the bow jib, the backmast is simply two large spinnakers, the mainmast is longer, even beyond the width of the hull, equipped with aileron sails on both sides and a pole sail on the top.

This pattern of sailing did not appear until the end of the 19th century and was called a full-mounted sail. It can be regarded as the power of the sail to the extreme, and it has never been improved again, and then it is a sailing ship, and the steam engine and sail power are mixed. The advantage of such a boat type and sail is that it is fast! It can make the maximum use of wind power, and the downwind, cross wind, and headwind can have good mobility. There are also many disadvantages, it will make the hull very unstable, difficult to operate, affect the accuracy of sea shelling, and it will cost manpower! More variety of gear means more sail handlers are needed to operate it, at least 20% more crew than a regular sailboat.

In addition to its size, the new ship is distinguished by two rows of small windows in its hull above freeboard. The Song people may not know what this thing is for, but it should appear in another two hundred years, it is the cannon door of artillery. Behind each small door hides an iron devil who, when revealed, brings death, war, and destruction.

Hong Tao has artillery? Not yet, but soon, at least there's hope. This hope is not the casting of the cannon itself, but the finding of the most suitable bronze alloy ratio for the casting of the cannon. There is no trick to this thing, it is all the credit of Qi Zu and their experiments over and over again. The copper produced in the copper mine in Jinhewan was not taken out for money at all, and all of it was smelted into different bronze pipes, and then destructive tests were carried out, and the most suitable alloy ratio data for hardness and toughness was gradually found.

At present, to the south of the smelting workshop, there is a graveyard of bronze pipes like a hill, and countless cracked bronze pipes are left there to rust. Fortunately, the old man Bo Fu came back relatively late, and he didn't know too much, if he knew, Hong Tao felt that he had to be uncomfortable for many days, how to deal with these bronze wastes, it was a big problem, but unfortunately he couldn't take care of it now. Hong Tao planned to wait for the artillery to be developed, and then return these bronzes of different colors to the furnace, cast them into copper coins, and then use these copper coins to Japan and Goryeo to buy the goods needed in Jinhewan. They want to collect the fake money, honestly return their goods, dare to say a fake word, a non-word, and turn their port into a mountain of flames in minutes.

In addition to qualified bronze alloys, Qizu also forged a lot of stainless steel barrels. According to his theory, if all the cannons are made of bronze, it will be too expensive, and the thing is equivalent to casting copper coins, and a cannon will cost at least more than 2,000 catties of good copper, which is distressing! To put it bluntly, he plans to make a steel pipe out of these steel steels that have been repeatedly forged, recycled, and then forged to make a steel shell, so that at least half of the copper can be used less. Stainless steel is not uncommon since there is a forging hammer driven by a waterwheel, and a small apprentice can smash hundreds of catties a day, which is purely a labor-intensive thing, and its value is much lower than that of copper. (To be continued.) )