When there are no guns, no shotguns, no revolvers. People fought with spears, swords, and just rocks. In ancient times during the siege of fortresses used a special weapon for throwing large stones, catapult. In these simple military machines were used “energy” twisted ropes made of sinews.
My tools are designed for processing of soil in the garden and the vegetable garden. The main type of work in the spring and summer — preparation of beds for planting and care of plants. Therefore, more than a third of the set are rippers. They are divided into three types: one-, two – and trehrozhkovye, and each is used depending on the planting density and the soil conditions. Where gaps between plants are great, easy to work trehrozhkovye — they are the most productive; and where planting is thickened, handy slowly loosen the ground two or odnokrylym.
Australian Steve Sammartino (Steve Sammartino) and Raul Romanians Aida (Raul Oaida) presented the car on the pneumatic actuator, assembled from parts designer LEGO. The car accommodates two adults and is able to accelerate to 32 km per hour. The construction of the car took half a million of parts of LEGO. From the designer collected all the parts of the machine, including four runs on compressed air piston engine. The only elements ostavlennye not LEGO are the wheels, tires and instruments on the panel of the driver.
They are large and small, foldable and “monolithic”, table and floor — the different designs, but with one common shortcoming: require space for storage. We are talking about Ironing boards. Indeed, so necessary for each family household goods, and such an archaic, “clumsy”! where to clean it up when all the sheets are in order? However, came to light and the modern Ironing devices going, so to speak, in pace with the times scientific and technological progress: electric units in which instead of heating the iron bar, and the role the Board performs a cylindrical roller. But this construction is even more difficult to attach in the apartment so that it had not violated the interior.
Present Board milling machine come in handy craftsmen who love to work with wood to get the blanks embossed surfaces, various geometric patterns, as well as cutting slots, grooves, sockets (both simple and shaped), etc. the Machine consists of two main parts: a base attached to it the guide posts and spring-loaded platform on which is mounted an electric motor.
Well-made screw — the key to a successful flight “butterflies”. Pick up the wood, without the ROE and knots. Billet screw vystrugat in the form of a rectangular bar size 160х8х10 mm. In the center of the puncture hole for the axis. Then make a paper template of one of the propeller blades. Aligning the centers of the template and of the bar, move the contours of the blade first on one half of the bar, and then another. Billet astrogate a knife strictly on the contour, do the same with a lateral projection. Holding the billet in his left hand, on the opposite half cut the right corners. When finishing, try to front (top) part of the blade was slightly convex and the lower flat or even slightly concave.
Soldering metal tin solder — one of the most common but, unfortunately, the connection is not too strong. A more reliable seal provide so-called “hard” solders — silver-copper or copper-zinc. Most often, when brazing use a gasoline blowtorch. However, they should be treated skillfully: the lamp is unsafe in the fire relation, smokes when running, the flame is poorly adjusted.
Almost twenty years of experience in the design obsut Chernihiv circle of agricultural modeling. Over the years the students under the guidance of their mentors have designed and built many useful machines, mechanisms and devices, many of which have economic value and bring real benefits to the collective field. One of such devices — a device for the thermal treatment tick bees.
Any owner confirms that the washing out, dried on the street, gets the smell of freshness, not an example of this, when moisture from the Laundry evaporated in a special apparatus (devices) or simply indoors. Many times this smell is enhanced by weathering of underwear in the cold, and especially when freezing.
So, ended walking through the shops in search of the desired colors of the future outfit for the walls of your home; purchased after consultation with the sellers the required number of rolls and packs of glue you would have to start wallpapering. However, where better to begin this work?
