Half-round gutter making apparatus

Details Half-round gutter making apparatus Half-round gutter making apparatus

1995-09-01

1996-09-03

Crane, Daniel C.

Metal deforming

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

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

B21D 508

Patent

active

055512720

ABSTRACT:
Roll forming apparatus is disclosed for making half-round gutters and the like includes a series of initial forming stations that roll form a partially formed curved bottom wall, and opposed front and rear walls with a conventional ogee curve and head in the front wall and a hook in the back wall. An adjustably positionable side roller assembly receives the gutter body and while completing the head grips the head and moves the front wall and associated top edge toward the opposite rear wall and associated top edge. A hook forming assembly opposite the side forming assembly balances and stabilizes the gutter body and turns the top edge of the back wall toward the front wall. Two over bending stations after the side roller assembly and hook forming assembly grip the head and hook and overbend the bottom wall to a smaller radius and the opposed walls past a parallel position so the resiliency causes the bottom and opposed walls to spring back to a desired size and shape in the finally formed half-round gutter.

REFERENCES:
patent: 2458906 (1949-01-01), Himmel
patent: 2826235 (1958-03-01), Gudmestad
patent: 4899566 (1990-02-01), Knudson
patent: 4947671 (1990-08-01), Lindstrom

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