[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.34r.cz\/zavitniky-whitworth-maji-na-slunci-stale-sve-pevne-misto\/#Article","mainEntityOfPage":"https:\/\/www.34r.cz\/zavitniky-whitworth-maji-na-slunci-stale-sve-pevne-misto\/","headline":"Z\u00e1vitn\u00edky Whitworth maj\u00ed na slunci st\u00e1le sv\u00e9 pevn\u00e9 m\u00edsto","name":"Z\u00e1vitn\u00edky Whitworth maj\u00ed na slunci st\u00e1le sv\u00e9 pevn\u00e9 m\u00edsto","description":"Historie projektov\u00e1n\u00ed a v\u00fdroby z\u00e1vit\u016f ve stroj\u00edrensk\u00e9 praxi sah\u00e1 a\u017e do obdob\u00ed pr\u016fmyslov\u00e9 revoluce v polovin\u011b 19. stolet\u00ed a pr\u00e1v\u011b tehdy ve sv\u011bt\u011b p\u0159eva\u017eoval Whitvorth\u016fv … ","datePublished":"2020-12-01","dateModified":"2023-06-14","author":{"@type":"Person","@id":"https:\/\/www.34r.cz\/author\/#Person","name":"","url":"https:\/\/www.34r.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/093836c6bc976bea6a4c3cd39f9136c261430c33201aa865249fef2be34e3fdb?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/093836c6bc976bea6a4c3cd39f9136c261430c33201aa865249fef2be34e3fdb?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"34r.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.34r.cz\/wp-content\/uploads\/auto%20veter%C3%A1n.png","url":"https:\/\/www.34r.cz\/wp-content\/uploads\/auto%20veter%C3%A1n.png","height":0,"width":0},"url":"https:\/\/www.34r.cz\/zavitniky-whitworth-maji-na-slunci-stale-sve-pevne-misto\/","about":["V\u00fdrobky"],"wordCount":385,"articleBody":"       Historie projektov\u00e1n\u00ed a v\u00fdroby z\u00e1vit\u016f ve stroj\u00edrensk\u00e9 praxi sah\u00e1 a\u017e do obdob\u00ed pr\u016fmyslov\u00e9 revoluce v polovin\u011b 19. stolet\u00ed a pr\u00e1v\u011b tehdy ve sv\u011bt\u011b p\u0159eva\u017eoval Whitvorth\u016fv z\u00e1vit. Ozna\u010duje se p\u00edsmem W a vzhledem k tomu, \u017ee jeho objevitel Joseph Whitworth byl Angli\u010dan, jist\u011b v\u00e1s nep\u0159ekvap\u00ed, \u017ee pr\u016fm\u011bry a stoup\u00e1n\u00ed z\u00e1vit\u016f jsou ozna\u010dov\u00e1ny v palc\u00edch.Z\u00e1vitn\u00edky Whitworth a stroj\u00edrensk\u00e9 v\u00fdrobky z t\u00e9to kategorie se v\u0161ak na v\u00fdslun\u00ed nevyh\u0159\u00edvaly dlouho, z tr\u016fnu je sesadil z\u00e1vit metrick\u00fd, ale jak to tak b\u00fdv\u00e1, USA, Velk\u00e1 Brit\u00e1nie a Austr\u00e1lie jsou zem\u011b velmi konzervativn\u00ed a lp\u00ed na sv\u00fdch tradic\u00edch natolik, \u017ee se s t\u00edmto typem z\u00e1vitu m\u016f\u017eete b\u011b\u017en\u011b potk\u00e1vat i dnes.Retro kousky \u2013 sb\u011bratel\u00e9 stroj\u016f a mechanism\u016f, m\u011b\u0159ic\u00ed a regula\u010dn\u00ed techniky, obr\u00e1b\u011bc\u00edch stroj\u016f \u010di dopravn\u00edch prost\u0159edk\u016f (bicykl\u016f, \u017eelezni\u010dn\u00edch vozidel, automobilov\u00fdch a motocyklov\u00fdch veter\u00e1n\u016f) vyu\u017eij\u00ed z\u00e1vitn\u00edky Whitworth k oprav\u00e1m a renovac\u00edm a udr\u017eov\u00e1n\u00ed t\u011bchto sb\u011bratelsk\u00fdch kousk\u016f v chodu. Tento typ z\u00e1vitu m\u00e1 zkr\u00e1tka st\u00e1le sv\u00e9 m\u00edsto ve sv\u011bt\u011b techniky a stroj\u00edrensk\u00fd obor s n\u00edm po\u010d\u00edt\u00e1.U\u010d\u0148ovsk\u00e9 \u0161kolstv\u00ed \u2013 modern\u00ed stroj\u00edrensk\u00e1 v\u00fdroba stoj\u00ed a pad\u00e1 na numericky \u0159\u00edzen\u00fdch syst\u00e9mech (CNC), ale mo\u017en\u00e1 v\u00e1s udiv\u00ed, \u017ee byste st\u00e1le je\u0161t\u011b na mnoha m\u00edstech mohli zaslechnout zvuk pohonn\u00e9 jednotky klasick\u00e9ho soustruhu, fr\u00e9zky, hoblovky, stojanov\u00e9 vrta\u010dky \u010di brusky, tedy stroj\u016f vyroben\u00fdch v polovin\u011b dvac\u00e1t\u00e9ho stolet\u00ed. Ano, jde zejm\u00e9na o stroj\u00edrensk\u00e9 u\u010d\u0148ovsk\u00e9 obory a st\u0159edn\u00ed \u0161koly, kde se budouc\u00ed stroja\u0159i seznamuj\u00ed s technikou, a kde i Whitworth\u016fv z\u00e1vit m\u00e1 sv\u00e9 nezastupiteln\u00e9 m\u00edsto. Fotografick\u00e9 stativy a dal\u0161\u00ed pom\u016fcky \u2013 kdy\u017e u\u017e jsme u t\u00e9 nostalgie, m\u016f\u017eeme zm\u00ednit i analogovou fotografii a pom\u016fcky, bez nich\u017e se dobr\u00fd fotograf neobejde, p\u0159edev\u0161\u00edm stativ. Ve sb\u00edrk\u00e1ch amat\u00e9rsk\u00fdch fotograf\u016f byste nalezli i mosazn\u00e9 stativy, ale i modern\u011bj\u0161\u00ed kousky, kde je tento typ z\u00e1vitu naprosto b\u011b\u017en\u00fd.                                                                                                                                                                                                                                                                                                                                                                                          4.7\/5 - (10 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Z\u00e1vitn\u00edky Whitworth maj\u00ed na slunci st\u00e1le sv\u00e9 pevn\u00e9 m\u00edsto","item":"https:\/\/www.34r.cz\/zavitniky-whitworth-maji-na-slunci-stale-sve-pevne-misto\/#breadcrumbitem"}]}]