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MAGNETIC PAPER GRIPPING CONCEPT

IP.com Disclosure Number: IPCOM000023583D
Original Publication Date: 1978-Apr-30
Included in the Prior Art Database: 2004-Mar-31
Document File: 2 page(s) / 189K

Publishing Venue

Xerox Disclosure Journal

Abstract

The figure shows a portion of a machine wherein leading and trailing edges of a document 1 are to be attached to a rotating drum 2. The drum surface has a recess in which is mounted permanent magnet 3 polarized such that the magnetic field is parallel to the plane in which the paper lies on the magnet. Gripping is accomplished by using a pair of ferromagnetic, spring-like gripper bars 4 and 5 which are hinged to an inter-poser 6 placed in the center of the magnet. The bars are normally held in a flat (closed) position by magnetic attrac-tion. When a document is attached to the drum, a first bar 4 is opened for level edge document insertion, then closed. The drum is rotated 360°; the second gripper bar 5 is opened for trail edge document insertion and then closed.

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XEROX DISCLOSURE JOURNAL

MAGNETIC PAPER-GRIPPING CONCEPT
Allen J. Palmer

2

Proposed Classification
U.S. Cl. 270/18DP
mt. Cl. B4lf 13/64

The figure shows a portion of a machine wherein leading and
trailing edges of a document 1 are to be attached to a rotating
drum 2. The drum surface has a recess in which is mounted
permanent magnet 3 polarized such that the magnetic field is
parallel to the plane in which the paper lies on the magnet.
Gripping is accomplished by using a pair of ferromagnetic,
spring-like gripper bars 4 and 5 which are hinged to an inter-
poser 6 placed in the center of the magnet. The bars are
normally held in a flat (closed) position by magnetic attrac-
tion. When a document is attached to the drum, a first bar 4
is opened for level edge document insertion, then closed. The
drum is rotated 360°; the second gripper bar 5 is opened for
trail edge document insertion and then closed.

Volume 3 Number 2 March/April 1978 107

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