Method of making internal nut for adjusting the tension of a coi

Details Method of making internal nut for adjusting the tension of a coi Method of making internal nut for adjusting the tension of a coi

1984-10-09

1985-10-29

Combs, E. Michael

B21D 5324

Patent

active

045493251

ABSTRACT:
A nut for adjusting the tension of a coil spring is formed from a flat strip of material. The strip is notched to form a disc having a generally circular rim with at least one notch in the rim, and the rim is formed to provide a portion of one turn of a helical screw thread which extends around the periphery of the disc from one side of the notch to the other side of the notch. The center of the disc can be extruded and tapped. The nut is screwed ino a coil spring by inserting the helical rim of the nut between the first and second coils of the coil spring and rotating the nut with respect to the spring.

REFERENCES:
patent: 973641 (1910-10-01), Dysart
patent: 1447515 (1923-03-01), Miller
patent: 2659406 (1953-11-01), Locke
patent: 2996295 (1961-08-01), Smith
patent: 3041060 (1962-06-01), Jacobsen
patent: 3160189 (1964-12-01), Hughes
patent: 3326545 (1967-06-01), Bache et al.
patent: 3422722 (1969-01-01), Ptak
patent: 3596493 (1971-08-01), Lachaussee et al.
patent: 4211099 (1980-07-01), McGonigal et al.

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