Patent ID: 6807886
Filing Date: 2004-10-26
Classification: B23D,B26D,Y10S,Y10T

Abstract:
A non-rotating circular core cutting knife and an indexing means therefor, comprising;a) a circular knife defining a central orifice and a positional index adjacent to the central orifice, b) a knife mounting mandrel sized to pass through and closely fit the central orifice, c) a positional index engaging means (41) secured to the mandrel, d) a means for securing the knife in place on the mandrel, e) a worm gear secured to the mandrel, f) a worm shaft having as a part thereof a worm and the worm is operably engaged with the worm gear, g) an overrunning coupling operably secured to the worm shaft so that the coupling in an engaged portion of a cycle, indexes the knife in the direction of rotation of a core being cut, h) a means (17) for counting cutting cycles of the knife and a means (18) for counting indexing cycles of the indexing means, i) a means (18) for activating the knife Indexing means when a preset number of cutting cycles has been completed and a means (38) for terminating cutting operations when a predetermined number of indexing cycles has been completed and a predetermined number of cutting cycles has been completed.