Patent ID: 7946204

Claim:
In an automatic screw machine having a body, having a head that is rotatably mounted on said body and that is adapted to be selectively rotated relative to said body to an index position, said body and head having closely-spaced and facing bearing surfaces, having at least one spindle journalled on said head for rotation relative thereto, and having a source of pressurized lubricant, the improvement which comprises: a body passageway communicating said source with said body bearing surface, the intersection of said body passageway with said body bearing surface defining a body port; a head passageway communicating said head bearing surface with said spindle, the intersection of said head passageway with said head bearing surface defining a head port; and said body and head passageways being so configured and arranged such that lubricant may flow from said source to said spindle only when said head is in the vicinity of said index position such that said body and head ports overlap one another.