F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/115, 85/141,
F16B 31/02 (2006.01) F16B 43/00 (2006.01)
Patent
CA 1302752
ABSTRACT OF THE DISCLOSURE Deformable washer, particularly for predetermining the force needed for tightening a nut mounted on a screw or a screw cooperating with a tapped hole. The washer is provided on one of its faces, preferably the face which is meant to rest against one of the parts to be tightened, with a circular spot face, concentric to the central hole, the external diameter of which spot face is notably greater than the diameter of the central hole, while its depth is preferably near to the width of the spot faced ring. The washer further comprises, on its edge, a visible groove of which the cylindrical base is also concentric to the central hole and has a diameter at the most equal to the external diameter of the circular spot face and preferably just under said external diameter, the thickness of said groove being also as near as possible to the depth of the spot face.
580890
Calmettes Lionel
Sim & Mcburney
Societe A. Responsabilite Limitee : Etablissements Caillau
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