"Make some space and find some clean paper." Han Du pointed at the table that was completely covered with paper and ordered.
Heizi smiled awkwardly again, quickly cleared the table, and took out paper and charcoal.
Han Du leaned over the table with a focused expression. After a while, he drew a drawing of a wooden-handled grenade.
Heizi looked at the things on the drawing without blinking and asked doubtfully: "Sir, what is this?"
Han Du smiled and did not explain to Heizi. Instead, he pointed directly at the drawing and said to him: "Here is the gunpowder, here is the fuse, and here is the pull rope. Is there any way you can make it so that when the pull rope is suddenly pulled,
Light this fuse and eventually make this thing explode?"
Heizi looked at the drawings and pondered. After a moment, he said hesitantly: "It is easy to set off the gunpowder and the fuse, but it may not be easy to light the fuse with the pull rope."
He said it was not easy, just to give Han Du face. In fact, in Heizi's heart, he felt that this was impossible. He didn't know why Han Du insisted on lighting the fuse by pulling the rope. In his opinion, this was completely
It's unnecessary.
"Oh? Why?" Han Du originally swore when he was drawing the picture, thinking that the grenade would definitely be made. Unexpectedly, Heizi just took a look at it and was poured cold water on him. .??.
Heizi looked at the drawing and thought for a while, organized his words, and then said: "Sir, if you want to light the fuse, the best way is to use flint. But the flint needs to be collided. I'm afraid it won't work just by pulling on this rope.
"
Han Du also agreed with Heizi's idea of using flint, and was not sure whether pulling the rope would allow the flint to ignite the fuse.
After thinking for a while, Han Du said: "Let's get a few out and try them out first. We will know if they work or not."
Kuroko also nodded in agreement.
The production of hand grenades is not complicated. The iron part of the head can be cast directly after making a mold. The craftsmen of the Ordnance Bureau have long been familiar with the casting of various molds. Nothing more complicated than this is difficult.
Pour them. Casting a cylindrical mold is simply not a problem for them.
The wooden handle was even simpler. The carpenter polished the wooden handle easily, and even Han Du's request for drilling holes in the middle of the wooden handle was easily met.
A total of ten wooden handles were placed on the table. Since it was just an experiment to see whether the flint could be used to light a fire by pulling a rope, there was no need to add gunpowder.
Originally, according to Han Du's idea, sparks were produced by pulling copper wires against flint. However, the two tried countless times, but they could not produce the slightest spark.
came out. Even later, Han Du replaced the copper wire with iron wire.
At this time, even Han Du had to admit that his idea was too naive. Pulling the rope violently for a long time caused Han Du's right shoulder to feel a little sore.
"It seems that this method won't work." Han Du sighed while rubbing his shoulders. He accidentally rubbed a sensitive area and grinned in pain.
Heizi also nodded in agreement and put the wooden handle down casually. After pulling it so many times, he didn't even see a single spark, let alone light the fuse. It didn't take long for him to know that this road was unreachable.
Han Du's face suddenly turned red and he was a little angry. After hesitating for a long time, he finally came up with a solution.
"Since the pull rope is useless against flint, what if we use collision? It's like firing a bullet."
"This will definitely ignite the flint, but what are we going to do? We can't make it into a bullet, and we have to use something to touch it?" Heizi replied calmly, but he was still not optimistic about what he said.
Han Du's method.
Han Du didn't care about Heizi's attitude. Now that he had thought of it, he would give it a try no matter what. "We can use a spring to make a mechanism. Normally, the spring will be pressed down. When the rope is pulled, the spring will be released."
Release it instantly and let the spring push the hammer against the flint."
"This? You can give it a try." Heizi couldn't find anything wrong with Han Du's method, and he thought it should work. Heizi suddenly became excited. Sure enough, he was right to follow Han Du, otherwise he might have tried to break his head.
, I never thought that springs could have such wonderful functions.
Just do it, springs are abundant in the weapons bureau. Heizi quickly brought a wooden box over, pushed the springs and hammers together and installed them into each wooden handle. Soon Heizi had ten pieces of wood.
All handles have been remodeled.
Han Du picked up a wooden handle, slowly wrapped the drawstring around his index and middle fingers, and pulled suddenly.
Following a crisp sound, the fuse made a "hissing" sound.
"Successful!" Han Du shouted excitedly.
Heizi watched without blinking as the wooden handle of the fuse in Han Du's hand burned out. He quickly picked up a wooden handle and pulled it suddenly.
There was a crisp sound as always, but there was no sign of the fuse being ignited.
Han Du was happy when he suddenly saw
Heizi was dumbfounded here, and his face instantly darkened. He asked, "What's going on?"
Heizi took the wooden handle and inspected it carefully. He raised his head to Han Du and replied with an unchanging expression: "It seems that the hammer was deflected by the spring and did not hit the flint."
If the flint is not hit, there will naturally be no sparks.
Han Du frowned and took the wooden handle from Heizi's hand to take a look. Sure enough, not only was the hammer deflected, but it was also pressed against the inside of the wooden handle by the spring.
Putting down the wooden handle, Han Du, who did not believe in evil, picked up the remaining wooden handles on the table and pulled them one by one. Including the one that Han Du pulled on fire for the first time, there were ten wooden handles in total, only two were pulled on fire, and the remaining
The next eight all misfired due to various reasons.
I want to make grenades. It takes ten people to explode two. This is just a joke.
Looking at the wooden handle full of failures, Han Du sighed and said: "The spring pushes the hammer forward because the inner hole of the wooden handle is too big. If we make the hole the same size as the spring, it will
Wouldn’t it be easy to go astray?”
Heizi was startled for a moment and said politely: "This way, it will definitely not be easy to deflect, but it will be too troublesome for us to install the spring and hammer."
You must know that the spring needs to be compressed into the wooden handle first, and the hammer is stuck on the spring. If the inner hole of the wooden handle is the same size as the spring, then the installation will be very difficult. Heizi himself does not know whether he can succeed.
.
Han Du was thinking with his eyebrows lowered.
Suddenly, Heizi interrupted and said: "Since you want to light the fuse to detonate the gunpowder, there is a simple way."
"Oh? What's the solution?" Han Du thought for a while but couldn't think of any good ideas. Suddenly he heard that Heizi had a solution and quickly raised his head to look at him.
Heizi looked at the grenade blueprint on the table and said casually: "We don't need to make this thing so complicated. The fuse is not easy to ignite, so we just don't use flint."
"Then what's for?" Han Du frowned even more tightly.
"Use the fire to break it, just light it directly." Heizi said concisely and to the point.
The words woke up the dreamer, and Han Du suddenly raised his head. He knew that he had entered a cognitive disorder. The grenade Han Du had seen looked like this on the drawing. And the one with a wooden handle like this was already
The most rudimentary. But I never thought that even such a rudimentary grenade can only be produced on a certain industrial basis.
The only one in Ming Dynasty that has anything to do with industry
, it is the handiwork of these craftsmen. It is simply impossible to make a qualified wooden handle grenade under such conditions.
Since the ignition problem of the grenade cannot be solved, why do you have to solve it according to the methods of later generations? Isn't it okay to just use a fire stick to light the fuse?
Anyway, my requirement is that this thing can explode when thrown. As for whether it is thrown out after pulling the rope, or ignited with a fire stick and then thrown out, does it matter?
It's not important at all.
"Hahaha, that's what I was thinking. You're right, we don't have to bother with these nonsense, we can just bury the fuse and light it with a fire stick." Han Du turned his head and looked at Heizi.
, with an unconcealable smile on his face.
Things fell into place in an instant, and Han Du did not hesitate to let Heizi put the gunpowder into a cylindrical iron can and bury the fuse.
Originally, Han Du was ready to test the power of this extremely crude grenade, but when he looked at the grenade in his hand, he frowned.
Han Du held the grenade in one hand, looked at it, and suddenly said: "Since there is no need for a wooden handle, is this thing a little smaller? Otherwise, let's make it bigger."
Heizi doesn't care about this. Anyway, he will obey whatever Han Du says. Since the adults dislike this small one, then he should be a big one.
Han Du thought for a while and decided not to even use the cylindrical shape. It was made directly into a ball, which was easier to hold. And since the fuse was lit directly, waterproofing had to be considered. And he wanted the grenade to explode.
, then the opening should be as small as possible.
Taking into account many factors, Handu finally shaped the grenade into a spherical shape. The entire internal space was used to hold gunpowder, leaving only a small hole for filling gunpowder and burying the lead. The lead was tightly wrapped with several layers of oil paper, and the end was also used.
The wax seals it.
Following Han Du's instructions, Heizi quickly prepared a batch.
Han Du grabbed one casually, checked that the seal of the grenade was tight, and couldn't help but nodded with satisfaction. The only bad thing is that this thing is a bit heavy, the iron shell weighs about half a kilogram, and the best ratio of what's inside is
The gunpowder is also half a catty. Therefore, the weight of this one is one catty. It is heavy in the hand and feels a little heavy.
This weight, with Han Du's strength, can't carry it very far. However, it is not yet known whether this thing is heavy or light to the soldiers.
Anyway, I'm just trying it out first. If it's too powerful and too heavy, I can make it smaller later.