Abstract:
A method of manufacturing a component of a magnetic transducing head is disclosed in which ferrite strips are spaced apart by a non-magnetic gap and are then surrounded by a non-magnetic material. The resulting structure is divided into slices each of which contains a pair of ferrite portions with a predetermined gap between them. The slice may be profiled on one face for cooperation with a record disc and a yoke secured to the other face to complete the magnetic circuit.
Abstract:
To offset damage to the pole face surfaces of ferrite head blocks of magnetic transducing heads which are easily susceptible to wear and impact damage. The head block is reinforced by providing a reinforcing member surrounding the pole face surface such that one surface of the reinforcing member provides a surface co-extensive with the pole face surface, the combined area of the co-extensive surfaces being greater than the cross sectional area of the head block providing the pole face surface.
Abstract:
A method of manufacturing magnetic transducing heads to facilitate testing of individual components of the head is disclosed. A head for digital recording on magnetic discs is made of a slider profiled for co-operation with the disc and contains a pair of gapped pole pieces and a yoke assembly includes a yoke for completing the magnetic circuit and a resilient mounting for the head. The slider and the yoke assembly are tested individually.
Abstract:
A method of making a magnetic recording and reproducing component includes, providing in a ferrite member a plurality of grooves defining side-by-side Vee shaped ridges which are reinforced by filling the grooves wwth non-magnetic material. The each ridge apex is then machined to expose a ferrite surface and is bonded to a second ferrite member by means of non-magnetic material so that each face is separated from the second ferrite member by a gap filled with non-magnetic material. A third member is preferably bonded to the second member to produce a second gap aligning with the first gap. Cutting the members between the adjacent ridges to provide a corresponding number of separately operable components.