F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/75
F16B 39/30 (2006.01)
Patent
CA 1135088
ABSTRACT OF THE DISCLOSURE An improved lock thread convolution has a resiliently deflectable spring rib or projection which presses a load bearing or pressure flank of the lock thread convolution against the flank of a mating thread. The pressure between the two flanks retards rotation between the lock thread convolution and the mating thread. In addition, the flank pressure retards axial movement between the threads upon application of vibrating or oscillating loads to the threads. The resiliently deflectable spring rib or projection has a base which is integrally formed with the crest of the lock thread convolution and an arcuately curving body which extends away from the crest along the non- pressure or unloaded flank of the lock thread convolution. The spring projection is deflected by engagement of a side surface area of the projection with the flank of the mating thread to provide a resilient spring force urging the pressure or load flank on the opposite side of the lock thread convolution into abutting engagement with a flank surface of the mating thread convolution.
351749
Fetherstonhaugh & Co.
Russell Buidsall & Ward Corporation
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