F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/85
F16B 39/24 (2006.01)
Patent
CA 1189365
ABSTRACT OF THE DISCLOSURE A reversible lock washer in combination with a threaded fastener which has at least one cam surface. The lock washer has an annular washer body with an outer peripheral ring portion and an inner peripheral ring portion, with the inner ring portion de- fining a central opening in the washer body. The washer body is formed having oppositely positioned engaging surfaces, with each engaging surface including an inner annular recess with the width of each recess being less than the total width of the washer body to define the inner and outer ring portions. Cam means are formed on opposite sides of the inner ring member for matching engagement with the cam surface on the fastener. The cam means on the washer consist of a plurality of contiguously arranged cam members formed on the opposite sides of the inner ring portion and are disposed in the recesses with the height of the cam members being equal to or less than the depth of the recesses. The fastener consists of a screw having the cam surface formed thereon and positioned to en- gage the cam members of the washer body, the latter cam members being arranged in a counterclockwise direction when faced to engage the cam surface of the screw. Frictional means are provided on opposite sides of the outer ring portion, whereby an axial force applied to the fastener is transmitted from the inner ring portion to the outer ring portion, thereby establishing an out- wardly extended moment arm.
458475
Frieberg Bengt O.
Mcfadden Fincham
LandOfFree
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