1977-12-27
1980-06-03
Holko, Thomas J.
F16B 2114
Patent
active
042055865
ABSTRACT:
A locking pin for retaining a body on a drilled shaft or stud has a first straight section the end of which passes through the aperture in the stud. Opposite the aforesaid end the straight section terminates in a long sweeping 270.degree. section that straightens out into a leg of a U-shaped section having two legs lying astride the stud and lying at right angles to the straight section. The legs of the U-shaped member pass over the straight section and are angled down to contact the surface of the body to be retained on the stud whereby to provide a locking pin only two diameters of the wire high, having three lines of contact with the surface to prevent wobble and to prevent a line or rope from getting under the pin and lifting it off the stud. The pin is readily removed by placing a thumb nail under the base of the "u" or an opposed loop and lifting until the legs of the U are raised above the end of the stud.
REFERENCES:
patent: 1190908 (1916-07-01), Kafader
patent: 1799934 (1931-04-01), Strid
patent: 3175453 (1965-03-01), Williams
patent: 3263552 (1966-08-01), Fischer
patent: 3599527 (1971-08-01), Howells
Holko Thomas J.
Rose Howard L.
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