Device to support and position a magnetic transducer

A rotor for a media transport comprising in combination:

• a first substantially circular support means for rotating and positioning a transducer relative to the media;
• a first fastening means having metallurgical characteristic incompatible with said first support means, being pressed welded longitudinally and in close proximity to the perimeter of said first support means;
• and
• a thin foil, having metallurgical characteristics compatible to said first fastening means, being placed under tension to encircle the periphery of said first support means and is electron beam welded onto said first fastening means to form a unified rotor with air tight interface.

Apparatus for positioning a transducer of a helically scanned tape transport relative to a length of media for reading and/or writing information in tracks orientated at an acute angle to the direction of motion of the media, said apparatus comprising in combination:

• a substantially circular rotor mounted on a hollow shaft, said rotor having plenum chambers positioned around its periphery for supplying air to fly the media relative to said rotor;
• transducer support means operably associated with said rotor;
• transducing means affixed to said support means for transducing information from said media;
• a first fastening means pressed into the periphery of said rotor, said fastening means running in a direction parallel to the rotor's longitudinal axis and having a surface contour substantially equivalent to the surface contour of said rotor with approximately 0.060 inches of said pin being exposed along its lengthwise surface for welding;
• a second fastening means axially and circumferentially displaced from said first fastening means, said second fastening means being pressed in said rotor at an acute angle with the rotor's longitudinal axis with its diametrical end having a surface contour equivalent to the rotors and exposed for welding;
• a third fastening means orientated substantially as the second fastening means but circumferentially displaced approximately 60.degree. from said second fastening means;
• and
• an elongated stainless steel foil being stretched to encircle said rotor and electron beam welded to said fastening means.

A read/write unit comprising:

• a first mandrel half;
• a second mandrel half displaced from said first mandrel half;
• a length of media operably wrapped about said mandrel halves;
• a layer of air interfacing said mandrel halves and the media;
• said layer of air acting as a lubricant to minimize contact between the mandrel and the media;
• rotor means carrying read/write means being fabricated from a substantially circular support means, said support means having a steel foil being stretched about its perimeter and electron beam welded to steel pins being positioned on the perimeter of said support means;
• and
• means operably connected for rotating said rotor means.

A rotor for a rotating head device comprising:

• a substantially circular support means, said support means being fabricated from a relatively light weight material;
• a first steel pin having metallurgical characteristics incompatible with said support means being pressed through the circumference of said support means;
• a second steel pin press welded into said support means;
• a third steel pin postioned approximately 60.degree. from said second steel pin and press welded into said support means, and
• a length of thin foil stretched about the circumference of said circular support means and electronbeam welded to said pins.