公开(公告)号：DE2529404A1

公开(公告)日：1976-02-05

申请号：DE2529404

申请日：1975-07-02

Applicant: IBM

Inventor： BROCK GEORGE WILLIAM ,  KOLLAR ERNEST PAUL ,  NETTLES MICHAEL LEWIS

IPC: H04N5/7826 ,  G11B15/467 ,  G11B15/60 ,  G11B15/61 ,  G11B15/64 ,  H04N5/783 ,  G11B5/52 ,  H04N5/78

公开(公告)号：AU8140675A

公开(公告)日：1976-11-25

申请号：AU8140675

申请日：1975-05-22

Applicant: IBM

Inventor： BROCK GEORGE WILLIAM ,  KOLLAR ERNEST PAUL ,  NETTLES MICHAEL LEWIS

IPC: H04N5/7826 ,  G11B15/467 ,  G11B15/60 ,  G11B15/61 ,  G11B15/64 ,  H04N5/783 ,  G11B25/06

公开(公告)号：DE2860278D1

公开(公告)日：1981-02-05

申请号：DE2860278

申请日：1978-08-08

Applicant: IBM

Inventor： NETTLES MICHAEL LEWIS ,  STEVENSON PETER ALAN

IPC: B65G51/03 ,  B65H23/02 ,  B65H23/24

Abstract: Lateral force is applied to a web by apparatus including an air bearing surface to guide the edge of the web against a fixed reference surface. A bearing surface 15 over which the web 18 is movable includes an arrangement of holes 24, 25 for establishing a differential flow across the bearing surface 15 to produce a lateral force on the web 18 in the direction of a lip 20 having a reference surface 21. The holes 24 and 25 are arranged asymmetrically relative to the intended centre line 16 of the web over surface 15 but parallel to the reference surface 21. There are twice as many holes 24. A common source 32 of air under pressure supplies the bearing surface holes. The differential air flow may be established by different sizes of holes through the bearing surface or by differing air permeability of porous material forming the bearing surface.

公开(公告)号：DE2261205A1

公开(公告)日：1973-07-05

申请号：DE2261205

申请日：1972-12-14

Applicant: IBM

Inventor： NETTLES MICHAEL LEWIS

IPC: B65H23/32 ,  G11B15/60 ,  G11B15/61 ,  B65H23/16