1. Ubwa mbere, reba inguni y'umugozi
Uburyo bwiza cyane ni ugupima hakoreshejwe uburyo bwo gupima umugozi. 60° ni iy'Abanyamerika, naho 55° ni iy'Abongereza.
Niba nta bikoresho biboneka, ku migozi y'imiyoboro, ushobora kureba uburyo bwo gufunga: Imigozi isanzwe ya NPT yo muri Amerika ikunze gufunga hakoreshejwe umugozi ubwawo; Imigozi isanzwe ya BSP yo mu Bwongereza (nka BSPT, BSPP) ifite inguni y'umugozi ya 55°, kandi imigozi ya BSPP ijyanye nayo igomba kwishingikiriza ku mpeta yo gufunga kugira ngo ifunge.
2. Ibipimo by'igenzura ry'ingenzi (ibipimo na TPI)
Ku bikoresho byo gufatanya nk'amaboliti n'imbuto bifite imigozi, nyuma yo gupima umurambararo munini (umurambararo wo hanze w'umugozi wo hanze / umurambararo w'imbere w'umugozi wo imbere), ikintu cy'ingenzi cyane ni ukubara umubare w'imigozi kuri santimetero (TPI), hanyuma ukareba ukurikije igitabo gisanzwe.
Ku bijyanye n'imigozi y'imiyoboro, uretse gupima ingano, ugomba no kumenya niba ari umugozi utose (nka NPT, BSPT) cyangwa umugozi ugororotse (nka BSPP), ndetse n'uburyo bwo gufunga.
3. Reba neza kode isanzwe
Niba hari ikimenyetso gisanzwe ku gice (nka UNC, UNF, BSW, BSF, NPT, BSPP, nibindi), iki ni cyo kintu cyizewe cyane.
Subira inyuma aho wakuye
Umugozi usanzwe w’Abongereza waturutse ku mugozi wa Whitworth wa dogere 55 wa Joseph Whitworth mu 1841;
Umuyoboro usanzwe w’Abanyamerika watanzwe na William Sellers mu 1864 nk’umuyoboro wa dogere 60.
Mu by’ukuri, mu Ntambara ya Kabiri y’Isi Yose, amahame y’Abongereza n’Abanyamerika yateje ingorane zikomeye mu ihererekanya ry’ibikoresho hagati y’ingabo z’ibihugu by’Abibumbye. Kubera iyo mpamvu, mu 1948, Leta Zunze Ubumwe za Amerika, Ubwongereza na Kanada byafatanyije gushyiraho amahame y’imirongo ihuriweho (UNC/UNF).
Igishimishije ni uko guhera mu 1961, imiryango mpuzamahanga ibishinzwe yashyizeho uburyo bwo gupima umurongo ngenderwaho w’Ubwongereza, ISO R 228. Ubu rero, umurongo ngenderwaho w’Ubwongereza ni umurongo ngenderwaho ukoreshwa ku isi yose.
Igihe cyo kohereza: Gashyantare-05-2026
