Cross Screwdriver - Chinhu chisina kukosha che chero chishandiso chakaiswa. Asi izvi kuma1930s, hazvina kubviswa pakarepo nenharaunda yehunyanzvi.
Kuonekwa kwekutanga kweClassic Screwdrivers ne "Flat" Stale mazuva ekudzokera kuCentur Century, mune imwe nzira isina kuchinjika yavachavepo vasati varipo vezana ramakore rechi20.
Panguva ino, zviyero zvine slit anga atove kuti kunyunyuta kwakawanda, asi vaive kunze kwemakwikwi nekuda kwekudyara kwavo. Zvinokuvadza zve "Classic" zviyero zvakanyatsotaurwa negungano renyika, kunyanya, muindasitiri yemotokari. Kutanga, iyo sting haina kuve yakavezwa, nekuda kweizvi, masangisi echinyakare anowanzo sundutswa, achisiya kukwenya pane nhengo dzakaremara yemuviri. Kechipiri, kana uchidzvanya, zviyero uye screws kazhinji 'kudhonza ", kutendeuka musoro kana kukuvadza mashimendi. IZVO ZVAKAITWA UYE KUTI UVE KUTI UVHURE NEMIHANLI JHO JOHN Thompson, muna 1933 akaisa Screwdriver neCulletrimettriver uye Screw ine musoro wakakodzera. Nekudaro, kuedza kutengesa kugadzirwa kune vagadziri veHardware haina kuchengetedzwa nebudiriro. Muna 1934, Thompson vakajairana neinjiniya Henry Phillips uye vakataura kwaari kukosha kwechinhu chake chekugadzira. PHILLIPS I Aifarira zano racho, akatenga kodzero yeTompson's Patent's Patent Phillips Screw Company (ichiripo). Muna 1936, akagadzirisa tekinoroji uye akagadzira nzira yekugadzira misa yemasikati. Screwsing screws otomatiki otomatiki otomatiki, uye zvakare haina kubvumira "kudhonza" - kuruma kwechishandiso chakangoputika.
Nekudaro, iyo Phillips yakavharwa kwese kwese. Pakupedzisira, akakwanisa kufarira Yujina Clark, President American Screw Company, Mugadziri mukuru weHardware muUnited States. Kunyangwe mainjiniya wekambani akaramba Clark saka akabata pfungwa yacho zvekuti akatyisidzira "kudzinga munhu wese angati hazvigoneke kuita." Kutyisidzira kwaive nechiito, uye kambani, yakaiswa musangano rekugadzirwa kwehafu yemadhora emadhora, akatanga kugadzirwa kwemasviro pasi pe "muchinjiro". Muna 1937, GM yakatanga kushandisa izvi zviyero mukugadzirwa kwemhando dzeCadillac. Mhedzisiro yacho yaive yakashata iyo muna 1940, vese veAmerica vatariri vakaendeswa kushandisirwa kweCrusades, uye vagadziri vechikepe vakaivakwa pakutenga rezinesi. Munguva yeHondo Yenyika II, Vagadziri vemidziyo yemauto - matangi uye ndege akatamiswa kuti ashandiswe izvi zviyero.
Kubva ipapo, zviyero zvakawanda zvakasiyana zvakagadzirwa - uye pasi pePolyhedra, uye pasi peiyo nyeredzi yemhando dzakasiyana siyana. Asi kunyangwe paine izvi, zviyero (mune zvirevo zvinotaurwa neChirungu zvavanonzi vanonzi zita renzvimbo - Phillips) richiramba mwero, uye mambakwedza escrewdriver ndeye chero hwaro hwekushandisa.
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