THREADING DIE FOR OPERATION IN FIELD CONDITIONS Russian patent published in 1999 - IPC

Abstract RU 2143331 C1

FIELD: metal working, namely trial running of defect threads, their backing up and threading. SUBSTANCE: one tool has such design that it is possible to regulate worked diameter and mutual axial displacement of one-turn rollers by 1/3 of any worked pitch. It is provided due to use of respective regulating mechanisms. EFFECT: reduced range of possible designation, lowered mass and volume of threading dies for such purposes, especially suitable for operation in field condition. 2 cl, 5 dwg

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RU 2 143 331 C1

Authors

Sultanov T.A.

Alekseev S.Ju.

Dates

1999-12-27—Published

1998-05-15—Filed