Apparatus for indicating completion of fastening of screw components

A tightness indicator for a screw-threaded assembly (1, 2) comprises a washer (3) consisting of a pair of confronting apertured discs (3A, 3B) joined by a bridge (3C), and a deformable ring (5) located between the discs (3A, 3B) and larger in diameter than them, so that when the deformable ring (5)...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHARU YOSHIOKA, KAZUTAMI HAYAJIRI, TOSIO ICHIDA, MASAJI SHIMADA, NOBUYUKI ISHII, SINGO HIRAI, YUKIHIKO YAMADA, SHIGERU SUSAKI, HISAO OHTA, KATSUYOSHI NAGAMI, TERUO ARAI, MINORU YOSHIDA, TOSHIRO ISHIKAWA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A tightness indicator for a screw-threaded assembly (1, 2) comprises a washer (3) consisting of a pair of confronting apertured discs (3A, 3B) joined by a bridge (3C), and a deformable ring (5) located between the discs (3A, 3B) and larger in diameter than them, so that when the deformable ring (5) is compressed by the discs (3A, 3B) as the assembly is tightened, its outer part breaks away when the compression force reaches a predetermined value.