Abstract: A torque clutch coupling includes a torque clutch body adapted for support and rotative drive and having an axially disposed drive clutch thereon. A casing is mounted on and encloses said clutch. An adapter for a driven member is nested within said case and is spaced from the drive clutch. A driven torque clutch is loosely mounted over said adapter within said case and is normally biased for engagement with said drive clutch. An adjustable rotative drive mechanism is interposed between said driven clutch and adapter, and includes multiple interconnected projections, at least one of said projections lying in an inclined plane and at an angle to the case axis, whereby upon the adapter encountering a torque in excess of a predetermined torque, there will be a relative movement between the projections, such that the driven clutch is cammed into longitudinal movement within the case completely disengaging from the drive clutch.

Abstract: An adjustable tension and/or compression tap holder includes a shank adapted for rotative drive and longitudinal feed and mounting a drive socket at one end. A cylindrical carrier slidably nested within said socket and has a series of drive slots which receive a corresponding series of drive balls nested within said socket interconnecting said shank and carrier for rotation in unison and providing for longitudinal adjustment of the carrier relative to the socket. The carrier is adapted to receive a tap retaining bushing. A tension and compression adjusting screw is nested within said shank and at one end, loosely secured upon said carrier. A tension and compression adjusting nut is threaded into said shank and is interconnected with said screw so that rotation of the screw will effect longitudinal adjustment of the adjusting nut.