KOHLESCHLEIFSTUECK UND VERFAHREN ZU SEINER HERSTELLUNG.

摘要

PCT No. PCT/EP89/01579 Sec. 371 Date Jun. 18, 1991 Sec. 102(e) Date Jun. 18, 1991 PCT Filed Dec. 20, 1989 PCT Pub. No. WO90/07211 PCT Pub. Date Jun. 28, 1990.A press-molded collector shoe having a body made of a first carbon piece, and a layer disposed on a side thereof made of a second, less conductive carbon piece. The second piece covers only a portion of the side of the collector shoe. An electrical lead projects from a portion of the side which is not covered by the second piece. During the production of the collector shoe the surface layer is pre-pressed in a separate step and the first carbon piece into which the lead wire is imbedded and the second piece are then pressed together.