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Text Chapter 49 Jenny¡¯s Frustration

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    "Shao Wen, I think it is not difficult to manufacture an iron turbine with the capabilities of the Mechanical Department. The key is reliability and manufacturing cost. We can make many iron parts ourselves, but the quality is not guaranteed, such as bearings and other precision parts.  It can only be imported from foreign companies, which makes it difficult to reduce manufacturing costs. " Yuan Yicheng commented on the manufacturing of iron turbines from his professional perspective.  Yang Shaowen's iron turbine project is very challenging for current craftsmen such as woodworkers and blacksmiths, and has basically reached the limit of the manufacturing capabilities of these handicraft workshops.  This is also the reason why Yuan Yicheng never stays in his workshop and likes to run to Lamma Town every three days.  Lu Tonghai is more concerned about economic benefits: "How much can the efficiency of this iron turbine be improved compared to our current hand machine?" Yang Shaowen said: "It can almost double the weaving efficiency of the current hand machine!"  "That's it, it seems okay!" In fact, Lu Tonghai was a little disappointed. He saw that this power loom was obviously much more complicated than the hand loom, and the slightly modified iron wheel machine was not much simpler, but the final result was  It only doubles the weaving efficiency.  "It's okay no matter what you call it! If a technological advancement can double the efficiency, isn't it worth our efforts to study it?" Yang Shaowen patted Lu Tonghai on the shoulder, smiled and scolded: "Don't you know this?  It's not a technological advancement. Just adding a simple shuttle device can double the efficiency. Most technological innovations still require a large investment.  As long as it helps improve production efficiency, I will still spare no effort to promote it. " Lu Tonghai reminded: "It is not easy for technological progress to bring about improvements in economic benefits. " "We find ways to promote hand-pulled machines.  The business model also took a lot of effort, but others easily learned our business model and mobile phone, which is really trouble-free!" After that, he sighed again.  Yang Shaowen knows that he still has some grudges against the aggressive market competition of his opponents, and his attitude towards promoting new textile tools has become somewhat negative.  However, it will take some time for the iron turbine to become a qualified product, and it will not be too late to consider how to promote it.  There is another problem that worries him, and that is the spinning jenny that he is thinking about.  He was unwilling to give up the entire local yarn market to foreign yarn.  Although it is just a simple yarn product, it contains huge commercial interests and many employment opportunities from cotton planting, cotton processing, to spinning.  If he can make a Jenny machine, although the efficiency is still not comparable to that of foreign machine spinning, it is several times more efficient than hand spinning. Relying on local advantages, it can still compete with foreign yarn.  .  It¡¯s just that the manufacturing of the Jenny machine was not as smooth as the iron turbine.  The iron wheel machine had a ready-made reference for the power loom and was not a big problem to build.  The spinning machines in mechanical textile factories are large-scale equipment with dozens or hundreds of spindles, but they are not very suitable for transformation into manual equipment.  Therefore, it can only be designed out of thin air.  ¡°Both Yang Shaowen and Yuan Yicheng are second-rate in mechanical design, and their skills are really limited.  Designing a new spinning tool from scratch is easier said than done.  After Yuan Yicheng checked some ancient classics, he made a three-spindle hand spinning wheel.  That machine is a simple modification of a hand-operated spinning wheel. It requires one hand to control the feeding and stretching of three spindles. It requires high operating skills of the spinners and has no promotion value.  Yang Shaowen has a stubborn temper. The more he can't design something, the more he will be immersed in it.  When one path doesn't work, he looks for another way to solve the problem.  Since with his mechanical design skills, he couldn't design a Jenny machine out of thin air.  He took advantage of another advantage of his, which was his precious memory.  He had seen what Captain Jenny looked like in books or on the Internet. Although he had not studied its principles in detail before, this did not prevent him from roughly describing the appearance of Captain Jenny based on the vague memory in his mind.  Draw it.  Think a little, draw a little, revise a little every day, and then speculate on its working principle, and continue to modify and improve based on the inferred principles.  This is a very good method. Yang Shaowen feels that he is getting closer to the final answer.  When he finally drew a straight line representing a horizontal bar on the machine design drawing that had been revised many times, the design of the Jenny machine was officially completed.  Yang Shaowen is certain that the machine currently on the drawing is a Jenny spinning machine.  Because it matched the appearance of the Jenny machine in Yang Shaowen's mind very well, and he was able to analyze the working principle of this machine based on the drawings.  This kind of spinning machine has a number of spools filled with roving installed at the bottom of a frame, and there are several spindles on the frame.  Each spool is attached to a spindle with a strap.  An ingot that passes between two horizontal bars??A rod is formed that slides back and forth on the frame.  The spinner moves the rod backward to draw out the roving, then squeezes the bars together to clamp the strap, while the rod moves backward and turns the wheel, which turns the spindle.  When the twisting reaches a certain level, the rod moves forward again, and at the same time, the spindle slowly rotates to wind the yarn.  At this time, the spinner pulls a control lever, which presses down an iron wire, which pushes the thread to a position where it can be wound around the spindle.  This is the principle of the spinning jenny, which seems to mean that it is done.  But Yang Shaowen sadly discovered that the function of this Jenny machine is to draw and twist the roving into fine yarn.  But it wasn¡¯t fine yarn that he needed!  Whether it is the original local yarn or the machine yarn currently introduced by the company, they are all roving yarns with a count of about 10-12.  The largest textile product in the domestic market is homespun cloth. Homespun cloth requires rough and tough rovings. Only such rovings can make homespun cloth thick and wear-resistant and win the love of the working people in the country.  The Jenny spinning machine spins roving yarn into fine yarn, which is purely unnecessary for the current Young's Cloth Company.  This is a huge blow to Yang Shaowen!  This not only meant that all the efforts he had made before were in vain, but also completely ruined his hope of getting a share of the yarn market.  ¡°Hey, I shouldn¡¯t have placed too much expectations on Jenny Machine in the first place.  If Jenny could spin homespun yarn, the Eighth Route Army would not still be spinning yarn with hand-operated spinning wheels in the 1934s when they organized production cooperatives.  Yang Shaowen looked at the drawings in a daze, feeling unwilling, annoyed, and self-deprecating.  But somehow, he felt like things weren't completely hopeless yet.  The process of the Jenny machine is to spin the roving into fine yarn. If he needs roving, it is the process of drafting and twisting the cotton sliver, and finally winding it into a roving spool.  In principle, they are actually very similar.  Of course, cotton sliver is not roving after all, and the spinning process of the Jenny machine cannot be simply copied.  However, there are many places worthy of reference in the transmission mechanism of the Jenny machine and the principle part of the working machine.  Although he has yet to find the answer to the problem, Yang Shaowen once again ignited hope and immersed himself in drawing design again.  Note: Count is the measurement unit of yarn, divided into imperial system and metric system. This refers to the British branch.  The imperial count (fixed weight system) refers to the multiple of the length of 840 (yards = 0.9144 meters) of fiber or yarn per unit weight (1 pound = 453.6 grams) at the common moisture regain (imperial system).  The metric count refers to the length of the yarn per unit weight (per kilogram) at a common moisture regain, which is a multiple of kilometers.  In old China, especially in cotton textile enterprises, the widely used unit of measurement was the British branch.
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