Swivel hooks and method for making the same

Details Swivel hooks and method for making the same Swivel hooks and method for making the same

1975-11-10

1976-12-07

Foss, J. Franklin

Supports

Brackets

Hook type, stationary mount

242305AD, 242305SS, 248218, 248339, A47F 500, E06B 728

Patent

active

039958221

ABSTRACT:
A swivel hook has a hook member with a frustoconical projection terminating in a cylindrical extension of diameter less than the smaller diameter end of the frustoconical portion. The mounting member for the swivel hook has a frustoconical hole into which the frustoconical projection is fitted. The elements of the swivel hook are adapted to be cast of a metal or molded of a plastic, in such a manner that the bearing surfaces of one of the elements forms a part of the die for the bearing surfaces of the other element. During the casting or molding process, the cylindrical extension is beyond the frustoconical hole, and the elements are moved relative to each other following casting or molding to move the cylindrical extension into alignment with the frustoconical hole.

REFERENCES:
patent: 311246 (1885-01-01), Herrick et al.
patent: 366871 (1887-07-01), Petrie
patent: 769454 (1904-09-01), Ankers
patent: 850623 (1907-04-01), Clark
patent: 852285 (1907-04-01), Murray
patent: 860762 (1907-07-01), McGrady
patent: 2577350 (1951-12-01), Morin
patent: 3891172 (1975-06-01), Einhorn

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