Patents Assigned to National Manufacturing Company Inc.
  • Machine for trimming the edges of metal containers
    Patent number: 4257293
    Abstract: A machine for trimming the edges of metal containers in which a plurality of upstanding, vertically disposed cams are positioned upon a table. A plurality of sliding cutters are provided equal in number to the cams. The cams are driven up and down by a vertically reciprocating platen below the table by means of a power source, a crank shaft and an arm coupling the crank shaft and platen. Various cam face shapes and cam followers are disclosed to provide the cutting sequence of the cutters.
    Type: Grant
    Filed: July 16, 1979
    Date of Patent: March 24, 1981
    Assignee: National Manufacturing Company Inc.
    Inventor: William Stahl