Patent ID: 8215144
Filing Date: 2012-07-10
Classification: B21D

Abstract:
1. Apparatus for repeating the same bend angle in similar metal stock pieces comprising: a) manually powered metal bending apparatus; b) angle indicator means attached to said metal bending apparatus for indicating a bending arm angle of said bending apparatus around its bending path, further having rotation means for rotating said angle indicator means to any selected bending arm angle, and also having rotation locking means for locking said angle indicator means at any selected bending arm angle; and c) stop means attached to said angle indicator means for stopping the bending arm at any selected and locked angle of said angle indicator means; d) wherein said angle indicator means comprises a disk, and wherein said disk rotation means comprises said disk being rotatably mounted on said bending apparatus with the disk essentially parallel to and immediately within the plane of rotation of said bending arm with the disk center located at the bend axis; e) wherein a disk has disk rotation and rotation locking means comprising a cylinder having a perpendicular end attached perpendicular to said disk on the side opposite to the bending arm with the disk and cylinder centers aligned; and f) a support structure attached to said bending apparatus extending outwardly past said cylinder having a hole enclosing said cylinder, with the side of said hole opposite to said bending apparatus having a split opening, said split opening having manual adjusting means for changing the spacing of said opening from a maximum where the opening slideably encloses said cylinder to a minimum where the opening grips the cylinder with a force greater than any which can be generated manually to rotate the bending arm.