In the manufacture of models or devices containing frequently unscrews detail, there is often a need to do the knurling (knurled) outer surfaces of the nuts or screw heads. With this purpose usually use a special device consisting of one or two fine teeth hardened rollers in the mandrel. During rotation of the part fixed in the Chuck of the lathe, the teeth of the rollers are pressed into the surface and form therein a corrugation. With the appropriate equipment the operation is not complicated. However, if you want to make knurled at home?
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At the construction sites of the Baikal-Amur mainline and KAMAZ, large and small Komsomol — everywhere can be used a variety of mechanical AIDS created by the innovators of the construction sites and shown recently at the Exhibition of achievements of national economy of the USSR.
To connect to network various electrical household appliances, machines in homes and apartments provided for the outlet. In the utility premises, outhouses and household buildings when posting back lighting outlet usually do not put. And this from the point of view of electrical and fire safety, in General, that’s right — there for them no supervision, there can be high humidity, etc., etc..
In school museums or at exhibitions of young artists in the role of a tour guide may carry a tape recorder. Explanatory text in advance is recorded on a magnetic tape. It remains only to choose the right place in the tape and the tape will tell about a particular exhibit. But here’s the problem: no experience to do it sometimes difficult.
Almost two centuries have passed since the invention of the Bicycle. Since then, just who, where and how it didn’t “reinvent” and not improved. The result was a diverse array of pedal cars from a suitcase mini”bike” to multi-seat tandems, velomobiles to water and even air bikes, from utility to high-speed sports, from the simple to are equipped with computers.
In the first decade of the nineteenth century, the airplane had only just learned to fly. And the brave pilots of those years sought to master it so that you can explore the air travel. Among the many different aircraft types stood out one that is the best flying and best of all was controlled in flight. It was a plane-monoplane “blériot XI”. Few people know that the birth of this remarkable aviation history, the aircraft shall flying models.
The Polish automotive industry there is quite a few years. Serial production of cars started in our country two decades ago. Now we have produced machines of various types, designed for use in various sectors of the economy. Many cars of the Polish people’s Republic, for example, “Warsaw”, “beetle”, “Fiat 125-P”, won wide recognition in many countries.
Slightly more than half a century ago, at the dawn of Soviet power, Lenin dreamed of the time when we can give agriculture 100 thousand tractors. The Soviet people under the leadership of the Communist party brought to life the dream of the great leader, fulfilled his Covenant. Today 100 thousand — millions of a powerful modern tractors working in the vast expanses of the country. Every year, collective and state farms received a new and more productive machines.
TWO OPTIONS OF HEATERS FOR AQUARIUMS OFFER OUR READERS. Uniform temperature in the aquarium keeps the water-filled Cycling or any other appropriate size camera. It is placed as shown in the figure.
All-terrain vehicle manufactured in July 2013 and all this time worked without a break. Engine turbo diesel Kubota V1505-T power 44 HP (with restrictor) and a torque of 118 Nm. The engine weighs about 120 kg. Fuel tank capacity of 70 liters, the average fuel consumption 2 litres per hour. Transmission of the VAZ-2110, main gear from a GAZ-66.