F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/5
F16B 31/02 (2006.01) G01L 5/24 (2006.01)
Patent
CA 1147995
TENSION INDICATING WASHER ABSTRACT The invention provides a tension indicating washer to indicate a predetermined loading in a joint, and that washer comprises an annular disc-like body portion having first and second opposed faces with the second face defining a bearing surface and with the body portion having an aperture adapted for receiving the shank of a threaded fastener. A pair of arm members projects outwardly from the outer periphery of the body portion with each arm having an elbow and an outer extremity extending in a direction axially away from bearing surface of the elbow to a position above the first face of the body portion. Each elbow has a circum- ferentially inner and a circumferentially outer section with the circumferentially inner sections being adjacent each other, and the circumferentially outer section of each elbow is dis- placed to a horizontal plane below the horizontal plane of the circumferentially inner section such that as tension is applied to the joint, the elbow will cause rotation of at least a portion of each arm so that the outer extremities thereof will approach each other and will touch when the predetermined proper loading is achieved in the joint.
371950
Illinois Tool Works Inc.
Meredith & Finlayson
LandOfFree
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