Longitudinal curvature adjustment assembly for a rain gutter...

Details Longitudinal curvature adjustment assembly for a rain gutter... Longitudinal curvature adjustment assembly for a rain gutter...

2007-10-02

2007-10-02

Crane, Daniel C (Department: 3725)

Metal deforming

By deflecting successively-presented portions of work during...

By use of deflector arranged to bend work transversely of...

Reexamination Certificate

active

11300745

ABSTRACT:
A rain gutter roll forming machine wherein the final forming station has the exit drive rollers removed therefrom. The forming rollers for the lower front and back corners of the gutter are mounted for rotation about a single substantially horizontal axis and are supported by a camber adjustment plate. The camber adjustment plate is pivotable about a pivot point which is substantially within the plane of the bottom wall of the gutter. Accordingly, the relative pressures applied to the gutter by the corner forming rollers can be varied to compensate for longitudinal curvature of the gutter due to differential drag on the front and back gutter walls.

REFERENCES:
patent: 606306 (1898-06-01), Shann
patent: 1366331 (1921-01-01), Palmer et al.
patent: 2458906 (1949-01-01), Himmel et al.

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