It is no secret to anyone that many borrowed words in the Russian language have several meanings, so some people can be perceived differently. These include the word sleeve. This word has more than three well-known meanings with which to deal.
Meaning of the word sleeve
So what is a sleeve? The original meaning of the word comes from the German hulse (shell). But in Russian, this word means not only the shell.
The main meanings of the word:
- Artillery shell.
- Cartridge sleeve of any small arms.
- Cylinder liner or cylindrical liner.
- Cigarette case.
Artillery and small arms sleeve
The artillery shell is one part of the artillery ammunition. In this case, it is something like a steel cup with thin walls and is intended to store military, powder charges or means of ignition (capsules), as well as to protect those same charges from moisture and unwanted damage.
It consists of two main components:
The case is usually made in a conical shape for ease of loading and to increase the stability of the trajectory of the shot. Dulce has a round shape, and its walls are much thinner than the body. Such a design can easily provide a tight and high-quality connection between the shell and the shell, as well as prevent the breakthrough of powder gas.
Like the artillery, the cartridge case is part of the ammunition. It is also intended for storing powder charges. Together with it and the bullet fixed in the muzzle, it represents a real cartridge, which, as mentioned earlier, is used as ammunition for any small arms, starting from a pistol and ending with sniper rifles.
Cylinder sleeve
If everything is more or less clear with the artillery shell and the small arms sleeve, then the cylinder liner can plunge some people into a stupor. And it is not surprising, because those citizens who do not deal with car engines, diesel locomotives or steam turbines may not know what a cylindrical sleeve is. The meaning of the word of this part is as follows - this is a special insert that can be changed and which is installed in the crankcase of a reciprocating heat engine. Such a part is intended in order to reduce the wear of rubbing surfaces. In addition, this part can greatly facilitate engine repair.
In modern automotive industry, two main groups of sleeves are used:
- “Wet” (made and built in such a way as to be able to come into contact with engine coolant);
- “Dry” (respectively, they cannot come in contact with engine coolant).
Regardless of the type of sleeve, it should have excellent wear resistance, strength, as well as corrosion resistance. In addition, a cylindrical sleeve is that part that should ensure the reliability of seals at the joints between the head and the engine block.
Cigarette case
Making cigarettes on one's own is a common occurrence among many heavy smokers. Especially, this phenomenon is common in foreign countries, where a pack of cigarettes costs two, or even three times more expensive than in the Russian Federation.
Firstly, this approach allows you to make cigarettes anytime and anywhere. A smoker can fill a cigarette with any tobacco from any manufacturer. Secondly, the process of “rolling” the cigarette allows you to make the further smoking procedure more meaningful in the eyes of the smoker. But, in addition to tobacco and the very basis for a cigarette (paper), a sleeve is also used to make a “cigarette” - this is what many smokers are used to calling a “bull”. In other words, ordinary paper rolled up in a tube with a special acetate fiber filter installed inside .
As in a regular factory cigarette, a sleeve with a filter installed in a “cigarette” is designed to clean inhaled smoke. That is, to reduce the amount of tar and nicotine that the smoker inhales daily with smoke. As you know, the positive effect of cleansing smoke from harmful impurities depends on the length, as well as on the diameter of the used sleeve and a pre-installed filter.