Self-locking threaded fastener and unlocking tool combination

Details Self-locking threaded fastener and unlocking tool combination Self-locking threaded fastener and unlocking tool combination

1979-10-03

1982-01-05

Britts, Ramon S.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having structure to restrict rotation of threaded, mating...

Comprising a thread lock

F16B 3902, F16B 3938

Patent

active

043091407

ABSTRACT:
A threaded bolt has two elongated shank parts, the adjoining part ends having mating, stepped shapes. The shank parts when held and rotated in unison can be threaded in a piece such as a nut, but when not so held will frictionally bind in the threads of the piece. A keyway is provided through the shank parts to receive a key for rotating the parts in unison, preventing relative rotational movement therebetween, so that the nut and shank parts may be freely threadingly rotated in the aforesaid piece.

REFERENCES:
patent: 514570 (1894-02-01), Stancliff
patent: 514571 (1894-02-01), Stancliff
patent: 537244 (1895-04-01), Stancliff
patent: 764591 (1904-07-01), Hughes
patent: 791548 (1905-06-01), Fischer
patent: 830589 (1906-09-01), Harlow
patent: 915217 (1909-03-01), Ravilly
patent: 960938 (1910-06-01), Ingels
patent: 1849240 (1932-03-01), McCrudden
patent: 1874389 (1932-08-01), Trotter

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