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Application filed by Boguslaw CialkowskifiledCriticalBoguslaw Cialkowski
Priority to PL400444ApriorityCriticalpatent/PL400444A1/en
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Sposób wykonania jarzm górnych do strzemion górniczych w ksztalcie kablaka z nagwintowanymi koncami, których przekrój poprzeczny w narozach jest niesymetryczny, produkowanych metoda obróbki plastycznej na goraco z pretów okraglych, polega na tym, ze ulozony na matrycy (2) pret (1) w pierwszej kolejnosci zagina sie na ksztalt kablaka, a nastepnie, przy pomocy ksztaltowych rolek (4), walcuje sie naroza.The method of making upper yokes for mining stirrups in the shape of a cable-tie with threaded ends whose cross-section in the corners is asymmetrical, produced by hot-forming method of round rods, consists in placing the rod (1) in the first order (2) it is bent into the shape of a cable, and then, with the help of the shaped rollers (4), the corners are rolled.
PL400444A2012-08-202012-08-20Manufacturing method for upper yokes for mining stirrups
PL400444A1
(en)
A structure for the reinforcement of pavements comprising assemblies of grouped metal filaments in a parallel position, method of manufacture and installation