Abstract: A method of salvaging stationary blades of a steam turbine cylinder includes tack welding abutting stationary blade platforms, cutting stationary blade roots out of the steam turbine cylinder, machining a side of the root and platform for each stationary blade to reduce thickness along the side and mounting the stationary blades in a new cylinder having mounting grooves for each row of stationary blades. Each mounting groove has an annular recess formed in a sidewall thereof and the cylinder has a sloping surface which faces a machined area of the root and platform of the stationary blades. The space between the sloped surface and the machined area provides access for a piece of caulking material and a caulking tool, whereby the caulking material is deformed to make a key connection between the cylinder and the stationary blade roots.

Abstract: A method and apparatus for supplying lubricant to turbine bearings during normal and abnormal operating modes. A pump coupled to the turbine's rotor discharges lubricant during normal turbine operating modes through an ejector from its inlet port through its outlet port. The lubricant transmitted to the ejector's inlet port is mixed with lubricant withdrawn from a lubricant reservoir during its transmission through the ejector and such mixture is discharged from the ejector's outlet port at a supply pressure. The lubricant mixture is routed to the turbine bearings and the lubricant pump's suction side. When the supply pressure falls below a predetermined value, a clutch is engaged which couples a constant speed drive input linkage to the turbine rotor. The constant speed drive also has an output linkage whose speed is maintained at a constant predetermined value for varying rates of speed on the input linkage. The output linkage is coupled either to an auxiliary lubricant pump or an electrical generator.