Abstract: Tie bolt 10 has a reduced shank 34 and a tapered head 50. A split sleeve 38 has a complimentary flare 46 at the head end and surrounds the shank 34. The sleeve accepts shear loading and the tie bolt accepts shock axial loading with low stress concentrations in highly stressed areas.

Abstract: Plug 40 inserted in inspection opening 20 has an internal surface 42 conforming to interior surface 16 when properly oriented. Arm 46 secures the plug in the oriented position and acts against tapered boss 30 for removal of the plug.

Abstract: The present invention provides apparatus for precisely distributing a liquid coolant or lubricant about the interior of a rotary machine. Distribution in known quantity is sought over a wide range of shaft speeds.In one embodiment the apparatus of the invention is employed to distribute oil in various quantities to bearings and splines within a clutch assembly. Lubricating oil is sprayed from a stationary nozzle into the interior of a rotating shaft. An insert at the interior of the shaft has a plurality of longitudinal splits which intercept and collect the oil in proximity to orifices in communication with bearings and splines to which oil distribution is desired.

Abstract: An engine is shown having a system for providing cooling fluid flowing radially inward to turbine blades on a disk while providing sealing means between the blade roots and cooperating disk slots and providing means for retaining the turbine blades on their disk. The cooling system includes stationary passageway means for directing a coolant flow from a source through an annular axial passageway where it is given a swirling velocity in the direction of rotation in the bladed rotor by means of grooves. The cooling fluid is then discharged from substantially radial passageways in the stationary passageway which are directed at an angle so that the coolant peripheral velocity essentially matches that of the rotating shaft on which the bladed rotor is located. Openings in the rotating shaft located radially inward from the substantially radial passageways in the stationary passageway means permit this flow to enter an annular passageway in this member where it is directed to the blades.