Metal deforming – By or with work-constrainer and/or manipulated work-forcer
Patent
1991-12-20
1993-04-06
Jones, David
Metal deforming
By or with work-constrainer and/or manipulated work-forcer
72477, B21D 516
Patent
active
051992949
ABSTRACT:
This invention discloses a hand tool for bending a flange along an edge of a metal sheet. The tool can bend flanges of selected widths up to a maximum width and does not require that the metal sheet be marked or scored. A bending slot is formed by spaced apart forming plates having parallel bending edges at the boundary of the bending slot and a spacer between the plates. The spacer includes abutment edges spaced apart from bending edges. The abutment edges contact an edge of a metal sheet in the bending slot positioning the bending edges adjacent to the metal sheet and parallel to the edge of the metal sheet. Width-gaging openings through a forming plate communicate with the bending slot at locations spaced apart along the direction of the bending edges. Each width-gaging opening has a boundary with identifiable locations at selected distances from the bending edges. By aligning the edge of a metal sheet with an identifiable location of the boundary of the width-gaging opening, flange may be formed having a width equal to the distance from the identifiable location to the bending edge.
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"Metalworking Hand Tools", Malco Catalog, p. 9.
Photocopy of Malco Folding Tool, Catalog No. 12, Sec 7.
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