Joints and connections – Rigid angle
Patent
1978-09-15
1979-12-25
Shedd, Wayne L.
Joints and connections
Rigid angle
403377, 52732, B25G 300, F16B 506
Patent
active
041803477
ABSTRACT:
A clip of round spring steel wire or rod stock for jam or wedge fastening two extruded members together, one of which has a square cornered U-shaped cross-section with an inturned edge on one of its arms, comprises four distinct, straight, continuous branches. Three of the branches 1, 2, 3 lie in a common "bending" plane, and the third and fourth branches 3, 4 define a dihedral plane which forms an acute, perpendicular or obtuse angle with the bending plane--depending upon the desired direction of relative longitudinal movement between the two extrusion members. The unstressed angle between the third and fourth branches is initially 45.degree., which is bent to less than 45.degree. during the installation insertion of the clip in the U-shaped member, wherein the bending plane forms an internal diagonal across the member from the corner of the inturned arm. The length of the fourth arm slightly exceeds the internal width of the U-shaped member, whereby the other member is unidirectionally jam fastened during its assembly.
REFERENCES:
patent: 3355204 (1967-11-01), Philpot
patent: 3516698 (1970-06-01), Didry
patent: 3588151 (1971-06-01), Korenz
patent: 3830034 (1974-08-01), Kupersmit
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