High density multitrack magnetic head

Claim 1

The head face portion of a multitrack magnetic head comprising: a. pairs of first and second magnetic pole pieces, each said pole pair having a non-magnetic generally planar gap between the pole pieces of said pole pair, at least one pole piece of each pole pair being cutaway proximate the gap of that pole pair so as to taper generally away from the plane of said gap in a direction generally away from the tape contacting face, thereby to define a depth for the gap of that pole pair and to provide a well proximate the gap, b. non-magnetic spacer means sandwiched between the first and second pole pairs, said non-magnetic spacer means also being cutaway so as to provide a well therein that is substantially aligned in registry with the wells defined by the cutaways of said pole pairs, said spacer means being further provided with a slot for accepting a magnetic shield piece between said first and second pole pairs. c. a magnetic shield in said slot, d. first discrete non-magnetic edge support means (11a) having a face that is substantially parallel to the alignment of wells, said support means abutting said sandwich of pole pairs and spacer means, e. second discrete non-magnetic edge support means (11b) having a face that is substantially parallel to the alignment of wells, said second support means abutting said sandwich of pole pairs and spacer means, said first and second edge support means being disposed with respect to each other so as to sandwich said pole pairs between them, said first and second edge support means being both adapted to contact simultaneously a magnetic medium with which said head is cooperative, and f. glass filling all said wells, the spacings between both said edge support means and said sandwich of pole pairs and spacer means, and the spacing between said spacer means and said shield, said glass being integral and forming a unitary lattice that bonds all the parts of the face assembly together.