There is a whole range of different mechanisms for various kinds of sealing and tamping in construction from rollers to vibrotables. The device, created at the Central scientific-research and design-experimental Institute of organization, mechanization and technical assistance construction, will be indispensable where you want a layered soil compaction when backfilling the dug-up trenches, especially if the work is performed in cramped conditions in close proximity to foundations, pipelines, sewers.
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How soft and manageable fire “snakes” rolled in the hands of the rollers, they are so stubborn and hard to handle in the cold when cutting them on the measuring of the workpiece. Cutting methods — sawing with diamond discs, gas or plasma cutting or not give a smooth, does not require additional processing of the edge of the workpiece, or entail a significant waste of metal.
One of the major examination quality, which is a metal or alloy before you can become a responsible part of modern technology, the test of a test sample in tension. However, to determine what load it is able to withstand, you need to mount it in the testing machine. Existing methods or time-consuming, or complex. Innovators V. Kropotin and O. Ermolaev presented at the exhibition of IR-77 is a simple device and yet a very efficient clip (see Fig.), firmly gripping and holding the “pencil” test material.
Not only fitter or installer, but any technician knows to connect the two parts with the bolt, insert it through the hole, then throw the washer and finally screw and tighten the nut. As you can see, thus there is a double work: there is not only the Assembly of parts but also the Assembly of the bolt.
A considerable amount of manual labor required unloading bulk materials from open railway platforms. They increase especially in the off-season, when the materials can regedit. This leads to complex and costly discharge, and often to excess downtime rolling stock.
Recent studies have shown that laser beams act on the seeds of agricultural plants as an active stimulant, arousing in them the reserve force, increasing productivity, zastausia from disease. 
The name given to the original device, designed to replace manual labor when laying trunk cables with a diameter up to 60 mm. With their heavy lashes, as if boatmen twine could handle, holding at the same time, only a few people. Hard work and assumes “Electrobolt”.
Nowadays, the drill is not uncommon. Drill a hole in the concrete wall or polished metal part having a cartridge holder with a felt circle — in such cases it is indispensable. Wooden disk glued with a cloth will help you Polish any flat item, and if between the skin and the drive to lay the foam, you can tear off the old varnish from the floor, grind the surface of complex shape.
For screwing a screw includes a head, screw slot. And studs there is nothing: only a cylindrical body with thread. For screwing it in parts, there are special tools, but many of them are uncomfortable to use or has significant disadvantage as an unnecessary waste of time before and after the screwing — on training tool for surgery or subsequent release.
In last year’s fourth issue of the journal, I read an article about Razakhatskaya V. the machine “Skillful hands”. There is proposed a device for drilling. But it will have to cut off part of the shaft, and the remaining grind down under the cone, which excludes the possibility to use other devices.