| 摘要 |
1,012,183. Magnetic recording &c. heads. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 1, 1963 [May 4, 1962], No. 17161/63. Heading G5R. [Also in Division B3] A multi-track magnetic head unit having a plurality of flat plate-shaped head components 4 is made by grinding flat the surface 2 of a substantially U-shaped non-magnetic holder 1 and providing therein, perpendicular to the sides, parallel slots 3 each of width equal to the gap width of the head components 4 and spaced at the desired track spacing, placing in the slots the head components with their track surfaces parallel with the surface 2 and cementing them therein. The holder 1 is made of non-magnetizable ferrite and the slots 3 are formed by milling. Each head component 4 comprises two parts 6, 7 joined by a gap 8 filled with glass. After cementing of the head components the track surface may be rounded at 11. Intermediate narrow slots 12 may be provided to receive screening plates which are also cemented in. The sides of holder 1 and also its open sides may have plates of non-magnetizable ferrite cemented thereto. |
