Stock material or miscellaneous articles – All metal or with adjacent metals – Having variation in thickness
Patent
1976-01-22
1977-12-20
Simpson, Othell M.
Stock material or miscellaneous articles
All metal or with adjacent metals
Having variation in thickness
85 28, B21C 3704, B21F 500
Patent
active
040643190
ABSTRACT:
An upset head and a method of producing the same at a high-strength tension wire, wherein there is formed a supporting seating surface at the transition between the head and the wire. The maximum head diameter is located in the third of the height of the head situated closest to the seating surface. The head diameter at the free head end is equal to or smaller than the wire diameter and the head possesses the shape of a truncated cone at its end section.
REFERENCES:
patent: 1325721 (1919-12-01), Hill
patent: 3255558 (1966-06-01), Middendorf
patent: 3561102 (1971-02-01), Diemer
patent: 3828382 (1974-08-01), Nakamura
Leeb Dietmar
Siegwart Hans Rudolf
Bureau BBR Ltd.
Culver Horace M.
Simpson Othell M.
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