This device, which is a container with a rod designed to fight fires in grass-roots fires. His task — to set fire to the forest vegetation. The fact that near a large fire, the air is intensively moving in the direction of the hearth. So, if you set fire to the grass cover on the spread of fire, fire chain will be pulled to him, burning ever-increasing band, where you have no food for the flames. As a result, the fire, stumbled on a Smoking black tape will fall off and gradually subside.
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Despite all the difficulties of the post-Soviet time, the interest of our young citizens for the modeling are gone, and the ranks of the students, is passionate about making the existing car, ship and plane models with the subsequent participation in sports competitions, are constantly replenished in the circles of technical creativity.
Among the many exhibits already the Leningrad Museum of artillery, engineer and signal corps holds a unique exhibit—76-mm divisional gun model 1942 with serial number 4785. This is one of the 46 thousand 76-mm field guns of this type are made in the factories of the people’s Commissariat of arms of the USSR during the great Patriotic war.
Many professions small all-purpose Ka-26 in he became a forest firefighter. A simple device for extinguishing fires developed at the Leningrad scientific research Institute of forestry. It is a cable device with an outboard tank for collecting water from nearby ponds in flight.
For a long time home of the wizard, use foam, which for all its wonderful qualities has a major drawback. when working, clogging the working area is extremely trudnoudalimyh crumbs. The debris formed even when cutting with a sharp knife, and the use of power tools in General can not speak. The best tool for cutting foam sheets is recognized as the heated nichrome filament, stretched between driven into a wooden Board with two nails. To get the same curved surface or shape cutting, you can use a handheld jigsaw, is equipped with a site for installation and connection of the nichrome filament.
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In the construction of models of domestic aircraft such as TB-1, TB-3 and other required shirred casing, which is coated frame model. To make this trim easy. For this is the “rolling mill”, shown in the figure. For its production choose two of the same gear Ø 20-30 mm. of the same size will be the diameter of the rolls. The base of the machine — dural channel. To it with screws attached two dural pillar thickness of 8 mm. Between them there are two rolls with a length of 100 mm. the Axle shaft of the lower roll to freely rotate in the apertures of the columns (preferably without backlash), and the upper “floating” inserts of rectangular shape, which is inserted in a rectangular window racks. It is necessary to adjust the clearance between the rolls.
Shiny from the oil the heavy stack of sheets… How to approach it, how to raise and load? Until recently, this operation was quite time-consuming — each pack got tangled up in the rope and be lifted into a wagon by crane. Then had to climb inside and release the cable. Besides the fact that engaged these two people — the crane and crane work, lots of time was spent on loading, unloading, fuss with cables, and the work is far from secure.
Many cyclists, especially in provincial cities and towns, and put “on a trick” their “two-legged horses” and in the winter time. But winter is winter. Even four-wheel vehicles are recommended to be changed to studded tires. To say nothing about the less stable two-wheeled transport. Risk of falling with him and injury increases many times.