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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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.
Asphalt streets of towns and villages, even distant ribbon of highways — all of them like a layer cake, if you look in the context of: roadbed, sand cushion, bed concrete, asphalt. Each day of the five-year plan adds to existing roads new kilometers. And builders have a special road test: how firmly Packed surface, is it willing to stand under the infinite load of the modern transportation?
With the development of industrial building methods became widely used details of full factory readiness. However, there still remains an urgent problem mechanization of plastering and grouting works for the walls and ceilings of buildings, and especially in rural construction.