| 摘要 |
1,250,427. Magnetic heads. INTERNATIONAL BUSINESS MACHINES CORP. 30 May, 1969 [17 June, 1968], No. 27654/69. Heading G5R. A flying head assembly comprises a magnetic support 12 forming the air-bearing surface and attached to a plurality of magnetic cores 38 defining individual magnetic circuits containing transducing gaps 36. The cores carry centretapped windings 50 connected to a diode matrix 46 on the support 12. The assembly is made by: (a) cutting parallel slots 18 in a ferrite body 10, Fig. 1a; (b) filling the slots with molten glass 20, Fig. 1b, and cutting channels 22; (c) inverting and positioning the body over the ferrite support 12 with platinum shims (28) interposed (Fig. 1c, not shown) and glass rods (30) placed along the channels 22; (d) heating to cause the glass to bond the bodies 10, 12 together and to flow into the gaps 36; (e) slicing the assembly in two, bevelling one side of the body 10, shaping the support 12 and cutting slots not extending into the back gap to partially separate the individual heads; and (f) adding windings 50. |
