Telex Computer Products, Inc.

Other

George L Glaeser, Jr

Daniel R O'Neill

Alan Painter

The present invention is a transversely restrained, longitudinally flexible mount for use in mounting a bearing for a spindle in a spindle housing. The transversely restrained, longitudinally flexible mount includes an inner ring which is mechanically coupled to the bearing and an outer ring which is disposed concentrically to the inner ring and which is mechanically coupled to the spindle housing. The transverse restrained, longitudinally flexible mount also includes a frame member having an inner cylindrical band mechanically coupled to the inner ring, an outer cylindrical band mechanically coupled to the outer ring and a plurality of hollow cylindrical spokes extending radially from the axis of the frame member for providing lateral rigidity between the inner and outer cylindrical bands so that the inner and outer cylindrical bands are concentric with each other and the axis of the spindle. The frame member also has a first flexible coupling member and a second flexible coupling member both of which longitudinally flexibly couple the inner cylindrical band to the outer cylindrical band whereby the inner ring is able to bi-directionally move longitudinally along the axis of the spindle. The frame member of the transversely restrained, longitudinally flexible mount is an integral member which is formed by a two step process. The first step is plating with a plating material a platen which is in the shape of the frame member. The second step is dissolving the platen in a selected solution whereby the plating material forms the frame member.

Transversely restrained, longitudinally flexible mount for a bearing for

Capstan

The present invention is an improved capstan which is used in a magnetic tape transport system, to accelerate a length of magnetic tape. The capstan includes a cylindrical post, adapted to be connected to a drive shaft of a capstan motor in a magnetic tape transport system, a pair of discs, each of which has a set of outer holes disposed adjacent to and distributed about its periphery and a set of inner holes disposed adjacent to and distributed about its central axis, coupled together by the cylindrical post disposed about their central axes. The capstan also includes a first set of cylindrical posts, coupling the inner holes of one disc to the inner holes of the other disc, and a second set of cylindrical posts, coupling some of the outer holes of one disc to some of the outer holes of the other disc. The capstan further includes a cylindrical tape band, which has a set of grooves running concentrically with the discs and the other edges of which are joined to the peripheries of the discs. The capstan if formed by a two step process of plating a platen in the shape of the capstan with a metal, such as nickel, and then dissolving or etching away the platen in a selected solution. The resulting capstan not only has a relatively large diameter with a low moment of inertia, but also a low mass without sacrificing its structural strength.

Process for forming a capstan

The present invention is an improved capstan which is used in a magnetic tape transport system, to accelerate a length of magnetic tape. The capstan includes a cylindrical post, adapted to be connected to a drive shaft of a capstan motor in a magnetic tape transport system, a pair of discs, each of which has a set of outer holes disposed adjacent to and distributed about its periphery and a set of inner holes disposed adjacent to and distributed about its central axis, coupled together by the cylindrical post disposed about their central axes. The capstan also includes a first set of cylindrical posts, coupling the inner holes of one disc to the inner holes of the other disc, and a second set of cylindrical posts, coupling some of the outer holes of one disc to some of the outer holes of the other disc. The capstan further includes a cylindrical tape band, which has a set of grooves running concentrically with the discs and the other edges of which are joined to the peripheries of the discs. The capstan is formed by a two step process of plating a platen in the shape of the capstan with a metal, such as nickel, and then dissolving or etching away the platen in a selected solution. The resulting capstan not only has a relatively large diameter with a low moment of inertia, but also a low mass without sacrificing its structural strength.

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Culver City, CA, United States of America

George L Glaeser, Jr