U.S. Philips Corporation

Polygram International Holding B.v.

Michiel G Van Den Dungen

In a magnetic-tape apparatus (1) a magnetic tape (2) is conveyed from a supply reel (35) to a take-up reel (39) via a first height guide (25), a first capstan and pressure roller combination (17), a magnetic-head unit (5), a second capstan and pressure roller combination (19), and a second height guide (29). In a method of manufacturing prerecorded magnetic tape (2), before the information is recorded on the magnetic tape and while the magnetic tape is guided by the height guides (25, 29), first the first height guide (25) is adjusted in a direction parallel to the width direction (71) of the magnetic tape during tape transport, the first pressure roller (103) being kept clear of the first capstan (55). Subsequently, the second height guide (29) is adjusted during tape transport, the second pressure roller (105) being kept clear of the second capstan (57). The positional change of the magnetic tape (2) at the location of the magnetic-head unit (5) is fed back during the adjustment until the magnetic tape (2) has reached such a position relative to the magnetic-head unit (5) that during recording the information is recorded in tracks (115) within a specified tolerance at the specified position on the magnetic tape (2). After this, the information is recorded on the magnetic tape.

Method of adjusting the position of a prerecorded magnetic tape during

A storage bin (3) in which at least a part of the tape is stored as a package of tape loops (2a) has main walls (4), an entrance wall (5) and an exit wall (9), the walls (5, 9) being formed with an entrance slot (6) and an exit slot (10) respectively, and outlet openings of first and second pneumatic elements (15, 20) being provided near both slots to assist in the feed-in and feed-out of the tape. The main walls (4) of the bin (3) are disposed vertically or substantially vertically, the entrance slot (6) being situated near the upper side and the exit slot (9) near the lower side of the bin. At least one of the main walls (4) of the bin comprises a discharge element (16) allowing fluid to escape from the bin, which discharge element (16) is spaced from the entrance wall (5) and from the exit wall (9). Near the bottom of the bin wall portions of the exit wall (9) extend in a V-shape towards the exit slot (10) and at their upper sides they are provided with outlets of pneumatic element (19) to form a fluid cushion inside the bin (3) by fluid jets which converge to each other in an upward direction, the upper side of the cushion being situated at a distance above the exit slot (10) and the package of tape loops (2) floating on the cushion.

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Baarn, Netherlands

Michiel G Van Den Dungen