The weapon tycoon who traveled to Daqin

"This is a three-edged bayonet with blood grooves. These blood grooves are used for bloodletting. The killing effect is much greater than this spear bayonet. The role of the bayonet is to stab, not to cut. Do you understand?" Shang Wen Speaking of.

"Understood, my lord." All the craftsmen said.

"You can do some experiments. Find some chickens and dogs. Prick the same parts, and you will see the effect. Let those soldiers do these bloody things." Shang Wen said.

"Here." Everyone took two bayonets and left for the experiment.

"My lord. My lord." Zhang Yuan shouted loudly.

"Your Excellency succeeded. The barrel can be drilled and mass-produced." Zhang Yuan shouted loudly.

"Oh. Really?" Shangwen replied calmly.

"Yes. Look." Zhang Yuan took out a gun barrel and said.

Naofumi took the barrel of the gun and looked at it.It is still very rough, because there is a lack of a process.This process must use chemistry.The face also has some rough barrels.Shangwen can only face it.

"By the way, how about those fixing devices." What Shang Wen was talking about was the fixing slots and fixing brackets with threads.

"It's very easy to use." Zhang Yuan said happily.

"Well, don't even think about machining the barrel. There's still a lot to do," Shangwen said.

"For example, threaded joints, and fasteners between the joints. This kind of pipe will only be used in more and more places. This is a small invention. I will give you a table later. Apply for a patent." Shang Wen nodded and said .

"Then thank you, my lord." Zhang Yuan was about to kowtow after speaking.Shangwen quickly helped him up.

"Don't kowtow in the future, it will be so troublesome. If you want to thank me, just invent something more. Your pipe material plays an important role. Go, go." Shang Wen waved Zhang Yuan away.

Shangwen dismissed Zhang Yuan and went to look at the steam engine and sewing machine.

Shangwen is not involved in the work of steam engines and sewing machines. All these research and development are handed over to those research and development teams to figure out by themselves, and with the hydraulic press, they can suppress many molds that they think are feasible.

If the artillery workshop, the artillery has begun to use iron molds on a large scale, brushed with coal ash, and fixed and sealed.pouring.Then cool and open.The molds can be reused, and the rest is light work of sanding.

Naofumi went in to look at the artillery.This time, the more mature bronze pouring technology was used.The caliber of the artillery has also become five inches.Sixteen times the barrel.The craftsmen are busy polishing the cannon, and then installing the gun mount.The gun mount as a whole uses an iron gun mount.Because it can be made lighter.This is the second batch of guns of this type, the first batch has already been sent for testing.it is necessary.If it is feasible and there is no problem, then mass production will begin.These guns were still without rifling.For more accurate rifles, start as soon as rifled guns appear, or you can start now.Such as copper artillery.Thinking of this, Shangwen recorded this point.Go back and arrange manpower for research and development.

Walking out of the artillery production workshop, Naofumi came to the artillery shells.The shells have begun pouring in large numbers.And the types of shells began to enrich.

Grenade, shotgun, shrapnel. , the shape has a spherical shape, and there are a large number of conical bullets.Inspired by the tapered bullet at the meeting that day.However, this shell is experimental.The effect is not yet known.And for such shells, perhaps only rear loading is more suitable.

Seeing that there was no hidden danger in production, Shangwen left.All they produce is the shell.Filling gunpowder is mainly the work of female workers.

Shang Wen was going to check the situation of the spinning machine.A emerald female voice came.

"My lord, my lord. The sewing machine is ready. The sewing machine is successful." After hearing this, Naofumi smiled.However, Shun Shangwen wrote down the word "blend." in his notebook.

154 blended fabric

Shangwen came to the sewing workshop of the female workers, which mainly produces airbags for airships.Now that the airship needs to be remodeled, Shangwen can't let them idle, so let them make some clothes for Daqin's army stationed in the north.

Sewing machines, like the first sewing machines, were born to make shoes.Naofumi's original purpose was also for this.Airships require a lot of pilots.These pilots need a lot of parachutes.Parachutes require paratrooper boots.The soles of paratrooper boots can only be made of wood.It is very difficult for women to pierce the wooden board with their hands.

The sewing machine uses the loop stitching method.The loop stitching method is very different from ordinary hand sewing.In the simplest form of hand stitching, the seamstress attaches a thread through the eyelet at the end of the needle, then passes the needle and thread completely through the two pieces of fabric, from one side to the other and back again.This way, the needle drives the thread in and out of the fabric, stitching them together.

While this is very easy to do by hand, it is extremely difficult to pull with a machine.The machine needs to release the needle on one side of the fabric and grab it again instantly on the other side.It then entails pulling all the loose threads out of the fabric, reversing the direction of the needle, and repeating all steps in the opposite direction.The process was too complicated for a simple machine to be practical, and even by hand it only worked well with shorter threads.

Instead, a sewing machine simply passes the needle partially through the fabric.On the needle, the eye of the needle is just behind the point, not at the end of the needle.

The needle is attached to a shank that is pulled up and down by a series of gears and cams, and as the tip of the needle passes through the fabric, it pulls a small loop from one side to the other.A device underneath the fabric grabs the loop and wraps it around another thread or another loop of the same thread.The principle is very simple, but the current sewing machine can only make shoes, because this is the first one, and it is still a single thread chain hand sewing machine.

This hand sewing machine can only be used to open the sewing machine, and the practical significance is not very great.First of all, it is okay to make shoes, the degree of firmness is another matter.But the female workers were very excited.Watching the sewing machine punch holes and thread.As long as you shake your arms, you can complete it by yourself, and you are very excited.

The simplest coil stitch is the chain stitch.To sew a chain stitch, the machine loops the same length of thread behind the thread.The fabric sits on a metal plate under the needle, held in place with a presser foot.At the beginning of each stitch, the needle pulls a loop through the fabric.A loop-making device that catches the loop before the needle is pulled out moves synchronously with the needle.Once the needles have pulled the fabric, the feed dogs pull the fabric forward.

When the needle passes through the fabric again, the new loop will go directly through the middle of the previous loop.The device making the coil will grab the thread again and make the coil around the next coil.This way, each coil will hold the next coil in place.

The main advantage of chain stitching is that it can be sewn very quickly.However, it's not particularly strong, and if one end of the thread came loose, the entire sewing could come loose.Most sewing machines use a stronger type of thread called lockstitch.

The most important elements of a lockstitch device are the hook and spool assembly.A spool is simply a coil of thread placed under the fabric.It is located in the center of the shuttle, which is driven by a motor to rotate in synchronization with the movement of the needle.

As with chain stitching, the needle pulls a loop through the fabric, it rises again as the feed dog moves the fabric forward, and another loop is pulled in.Instead of joining the different loops together, though, this sewing mechanism joins them with another length of thread unwound from the spool.

As the needle pulls the thread into the loop, the spinning shuttle grabs the loop with the hook.As the shuttle rotates, it pulls a coil around the thread coming from the spool.This makes the stitching very strong.

This kind of rotary shuttle is also evolved from the straight shuttle.

The stitching principle of the sewing machine has evolved from the straight shuttle to the rotary shuttle, and it has entered a mature stage.

But for now, this maturity is far from being reached.The next improvement work will be of great exploratory significance.

"Who invented this sewing machine?" Shang Wen asked.The word invention is a bit far-fetched.Because Shangwen has provided three kinds of sewing machine drawings before, one is the single thread chain sewing machine currently used.The other is a chain stitch sewing machine with a hook on the needle.The last is the full-fledged lock sewing machine.

"I, I." A half-old child stood up.

"Oh." Shangwen suddenly became interested.The child looked like he was only fourteen or fifteen years old.

"What's your name, how old are you this year?" Shang Wen asked.

"My name is Bai Ai. I'm fifteen this year." Bai Ai said.

"Where are you from?" Shangwen asked.

"A native of Mei County, Qin State." Bai Ai said.When Shangwen first heard the surname Bai, he guessed that the child was probably from Qin.Because the Bai surname is mostly in Qin State.

"Is there anyone else at home?" Shang Wen asked.

"There is also an old mother. Ill."Said and bowed his head.Shangwen understands what it means to be sick.It is estimated to be some kind of serious illness.The current medical and sanitation situation is so bad that Shangwen doesn't want to think about it.

"Did you see the drawing of the sewing machine?" Shangwen asked.

"Well, my master is watching. When I went to deliver the food, I accidentally saw it." Bai Ai said.

The child understood the principle after just one glance, and he seemed quite talented.Shang Wen thought.

"Follow me from now on." Shang Wen patted Bai Ai's cheek and said.

"Come with me and fill out the patent form for this technology. You have obtained a technical invention. You will be rewarded with [-] gold." Shang Wen said with a smile.

"Really." Bai Ai said happily.

"Really." Shang Wen said with a smile.

"However, I still have a few sewing machines here. If you can understand all of them and make them, then your technology patent will be rewarded very generously." Shang Wen said.

"Can I take a look?" Bai Ai said eagerly.

"Okay, come with me." Shangwen called.