How diverse is pressed in units of parts so numerous and adaptations for wheel — pullers. However, the majority of them operates on the principle of ejection. Well, if the part is pressed into a blind hole? How to extract, for example, the sleeve or the bearing? The original puller for these cases, constructed by the innovator A.V. Yakimenko with the Odessa plant “Stroget-replica”. The principle of it is somewhat reminiscent of some designs of household tailspin.FOR BUSINESS AND TRAINING…
This bike has unusual pattern and drive: two steering wheels, instead of rotating the pedal — levers. The force on the chain is transmitted when a cyclist privste from the saddle. And of course, no accident that the author constructs A. Zavratnik from the city of Kirov believes that a bike of this scheme, in Read more…
The first multi-purpose four-wheel drive car with the name HONDA CR-V was released in 1995 and in 11 years of mass production sold in 160 countries with a circulation of 2.5 million copies, becoming the best-selling Japanese car company Honda. By the way, the car is outside the Country of the rising sun — it is released in the United States, Canada, England, Thailand and the Philippines.
From the time of this writing I have built five catamarans of various designs. In designing, building and testing these boats took an active part my friend Anatoly Pavlovich Ignatchenko. Not to say that none of them did not satisfy me. A catamaran with inflatable floats performed well on water the Moscow region, and Lower Volga. But Pneumatics poorly kept shape, which significantly reduced the speed. So the idea arose to build a catamaran with rigid floats.
A huge family of various lifting devices — from the powerful gantry and tower cranes to simple pulley— added another accessory device, designed by the innovators of the scientific production Association “Rhythm”. It’s a small winch that differs from similar mechanisms limit the portability and at the same time, a considerable load capacity.
Nimble like a river “the namesake” this mechanical brush can penetrate into the most inaccessible places, clearing different channels in the machine parts or equipment. Not necessarily straight, but even running at a right angle.
The safety device that signals the limit of the battery, must have for every modeller. The scheme of such a simple electronic device — figure 1. The unit is connected to the battery pack and press the button S2. If the supply voltage exceeds 10 V, relay K1. But as soon as this value is reduced to 10 volts, Zener diode is closed and relay K1 is de-energized. Contact K1.1 includes a signal lamp H1.
When I hear the word “dubbed”, it is a sun-drenched Playground, dry asphalt paths, summer-dressed children… unfortunately, autumn, winter and spring avtogorodok contraindicated. What should I do? Where to engage with students?