BY RELATIVELY MOVABLE TOOLS HAVING SLIDABLY ENGAGEDWORK-CONFINING WALL MEANS (E.G., EDGEWISE SHEET METALBENDER):
(under the class definition) Device comprising means to move or guide one tool* with respect to another tool in a generally predetermined path, each said tool comprising a surface or wall portion extending forwardly of the tool-face* and in substantial alignment with the direction of relative motion between said tools, which surfaces or wall portions on coacting tools are laterally offset to accommodate work therebetween, and are each arranged to overlap and engage a lateral surface on the coacting tool during the approach of said tools for a deforming operation.
(1) Note. A device of this type is frequently employed to perform a bending operation on sheet or thin plate material in the plane of this width, the added wall means on the dies serving to inhibit crumpling or buckling of the thin material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
57+, 127+ and 359, for some examples of work confined but not deformed between slidably-engaged wall portions on tools while being deformed by the tool-faces.
701, for distortion preventing means which may comprise laterally spaced walls on tools.
