Strip of loosely connected hold down clips

Details Strip of loosely connected hold down clips Strip of loosely connected hold down clips

1986-09-12

1988-08-30

Friedman, Carl D.

Static structures (e.g., buildings)

Frangible section or means

52715, E04B 138

Patent

active

047667079

ABSTRACT:
A punch and shear machine (27) has a pair of rotary punch drums (35, 36) succeeded by a pair of rotary shear drums (38, 39). The machine (27) receives a strip of sheet material (31) and forms in the strip a series of fastener-receiving indentations (51) and a series of alined pairs of slits (110) each with an intermediate scored portion (111). The sheared strip is then passed through a roll-forming machine (28) to form a strip of loosely connected hold-down clips (150) for roof panels and the like.

REFERENCES:
patent: 2101378 (1937-12-01), Wiskoff
patent: 2127665 (1938-08-01), Leslie
patent: 2222842 (1940-11-01), Humphrey
patent: 2293862 (1942-08-01), Sorenson
patent: 2586388 (1952-02-01), Schafroth
patent: 2889016 (1959-06-01), Warren
patent: 2966695 (1961-01-01), Dwyer
patent: 3097821 (1963-07-01), Richards
patent: 3144709 (1964-08-01), Hansson et al.
patent: 4139974 (1979-02-01), Fox
patent: 4495743 (1985-01-01), Ellison et al.
patent: 4660330 (1987-04-01), Romer

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