Creating some kind of mechanism or tool, the person usually by its name defines its main functional purpose. So, saw, saws, drill — sowing, the hole punch punch holes, and, say, a wrench used for screwing or unscrewing the nuts.
Rare design can be build without the use of welding, particularly electric arc. This is why a good welder is a dream for many designers and enthusiasts. The “heart” of it — the welding transformer, which will be discussed. Winding step-down transformer (Fig. 1), connected to the original circuit (Fig. 2) provide arc stability. For welding use electrode Ø 3 mm, designed for AC current. (In the forced mode of the transformer it is possible to use electrodes with Ø 4 mm.)
To facilitate and accelerate mounting of mounted units and structures it is proposed to use a modified fastener — some modified gostowski the bolt and nut. The modification applies to their threaded parts on which are four symmetrical groove equal to the width of the remaining protruding threaded segments. Such design dramatically reduces the traditional time in the operation of screwing and defines a new technological approach to the works of this kind that is important in case of unfavorable working conditions or low temperatures.
One arm movement — and in an unusual vise clamped firmly from two shafts, the diameter of which can reach up to 120 mm. the Design of this hot clip is rather simple, based on it — four prisms, pnevmotsitami and clamp. Works device is isolated. Compressed air through the check valve, which prevents the clamp from camerascreen when the pressure of air on the network. Moreover, the operating pressure is maintained in the cavity of the cylinder for a time sufficient for its completion.
Openwork frames and shelves, cut with a jigsaw out of plywood, out of fashion, but the jigsaw and stand to it — plate “dovetail” and clamp — have been and remain among the available tools modelers, modelers, and other craftsmen. However, look at the stand, had been in prolonged operation, and see her multiple gashes, cracks, burrs. This is nothing strange: borders “dovetail” under the sheet of plywood is not visible, and wonder “italicise” in the stand. And not feel so sorry for her, like a thin blade, which often breaks down.
The seeder is equipped with this opener, like a syringe: it can make seeds just under the soil, making a kind of “injection” at a given depth. This is due to the fact that swept the opener cuts into the layer of the earth, and through its tubular rack serves seeds, immediately cover the crumbling soil. However, the existing structure has one weak spot: the uneven distribution of seeds. Rows get thickened, and the aisle width of 20 cm is empty.
These two even look something like a high-performance tool developed by young innovators Dmitrov excavator plant. Brings them closer, and purpose: making large-diameter holes. The difference between constructive because they are intended for use with different materials.
In older homes often the meter mounted in a small wall niche not only Can decorate it, but generally prudently to use this space, embedding here a simple rack-column Design it is not difficult, because in contrast to the modern furniture it has no load-bearing side panels — their function will take on the niche wall to which left and right will be mounted stand — a support for shelves and doors.
Lovers to relax on weekends outdoors or on the country becoming every year more and more. Witness the sad-looking scraps of the scorched earth of a recent fire where tourists or vacationers baked potatoes or fried skewers. Braziers are available now on sale, are not all, as they are heavy, bulky and relatively expensive.
Folding umbrella is much more comfortable, against this one can hardly argue. Meanwhile, to alter a simple umbrella in the transforming is not so difficult. First of all, the umbrella must be almost completely dismantled, that is, remove the cloth, remove the wire ring — joints of the spokes and struts. A pair of “needle — brace” parse should not be, it can be modified and assembled.