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Electromagnetic apparatus

  • US 4,111,027 A
  • Filed: 02/11/1976
  • Issued: 09/05/1978
  • Est. Priority Date: 02/12/1975
  • Status: Expired due to Term
First Claim
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1. A tool for bending workpieces comprising in combination:

  • an electromagnetic coil;

    a pole adapted to be magnetized by the coil and functional in part as a supporting surface for the workpiece;

    a ferromagnetic keeper having an edge or surface against which a workpiece may be formed, and adapted to be maintained in a working position, in direct opposition to bending or forming forces, entirely by magnetic force arising from a magnetic flux produced on energization of said coil,and a work surface means pivotable with respect to the pole to place the plane of said work surface means at least substantially in the same plane as the supporting surface of the pole with substantially no part of said pole or said work surface means projecting on one side of said same plane, and operative in use to apply bending force to the workpiece.

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