Device and procedure for twisting a coil into perforations...

Details Device and procedure for twisting a coil into perforations... Device and procedure for twisting a coil into perforations...

B - Operations, Transporting

42

B

B42B 5/12 (2006.01) B21F 23/00 (2006.01) B21F 45/16 (2006.01)

Patent

CA 2506315

Described is a device and a procedure to twist a coil (2) into perforations (36) that are provided in the margin sections (38a) of flat components (38), sheets of paper in particular, with a drive (8, 9, 28, 30) that causes the rotation and axial in- feed of the coil (2), corresponding to the inclination of its helix shape. With a stopping device (6) the coil is inhibited from moving further and a release (8, 9, 12) brings the coil out of contact with the stopping device (6) and into contact with the drive (8, 9, 28, 30).

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