Magnetic tape cassettes and a separate housing part therefor

A magnetic tape cassette comprising bottom, lid, front, back and side walls and comprising two rotatably mounted coplanar hubs and a magnetic tape to be wound and unwound between the hubs and to be scanned by at least one magnetic head on a cassette apparatus, and a housing having first and second housing parts of molded plastic comprising bottom and lid walls and tape guide elements, said housing having a raised portion adjacent to the front wall of the housing parts for accepting the at least one head;

• said tape guide elements being located within the contour of the raised portion of the housing, said first and second housing parts forming the bottom and lid walls respectively have been molded as essentially planar parts without any inhomogeneities affecting the planarity of their inner surfaces, said essentially planar parts having molded thereon said back and side walls and said guide elements, and said raised portion and substantially said front wall of the housing have been molded a third separate housing part of U-shape for at least partially connecting said first and second housing parts together, which third separate housing part has front orifices for the entry of the at least one magnetic head.