Blade of the hacksaw on the metal is quite fragile and often breaks. The lean master will never throw away the debris: manufacture of them auxiliary short nail file, a knife, a Bong. I use a wad of wreckage as dracopoli file. Take 5-10 pieces, strung holes for any fasteners, and the other end with electrical tape to make the handle. A replacement file is not clogged with sawdust during operation, it is not necessary to clean with a wire brush — rapped about something, and you can continue the operation. It is particularly convenient to use this tool for soft materials: plastics, putty, non-ferrous metals, wood.
Can we call today an industry where not carried to its good welding is a fast and reliable method of joining parts from different metals and alloys. Not accidentally, the interests of many young innovators are concentrated “around the electrode.” The army’s innovators N. Khvorostiv M. Bokov, S. Privateer built the unusual torch for arc welding in shielding gases. It is intended for the qualitative connection performance parts, made of steels and aluminum alloys.
Existing disk device for mechanized spreading of fertilizers do not always provide the uniformity and range of distribution of fertilizers on the field.
During the war in Korea was shot down by an American fighter jet F-86 “sabre”. After studying Soviet specialists captured machine, the Soviet government in the beginning of 1953, decided on the reproduction of this aircraft. To copy it created a small design Bureau OKB-1 headed by Vladimir Kondratyev. Together with the ongoing work of OKB-1, led the development of future vehicles, including supersonic fighter with a molecular engine. Given the relevance of the topic and the declared characteristics, the proposal considered by the scientific and technical Council of the Ministry of aviation industry (map), where it received a negative opinion, and against the head of the design Bureau and of the works conducted by the team, was made, in the language of the time, and draw conclusions.
In the past a time when vocational schools were viewed as institutions in which strict uncle from the machine teach her simple craft dropouts, the birds and other “difficult” young tribe. I remember how much of the ordeal carried on their shoulders “patelnie” representatives across the country in the role of recruiters. They went to school, the Board, committees of the Komsomol patiently hovered in the Newspapers and radio, argued, campaigned, touted. But it took years, a lot of party, Komsomol, and educational work before a fossilized stereotype of “low prestige” of the profession began to blur. Life itself forced to make a reassessment of values.