Abstract: A robotic inspection system for gas turbine combustion components includes an exterior manipulator for visual inspection of the exterior surface of the impingement sleeve, an interior manipulator for visual inspection of the interior of the transition piece body and an annulus manipulator for inspecting the side weld seams of the transition piece body. The exterior manipulator includes an arcuate segment extending about the annular spaced impingement sleeves and a robotic subassembly including a linear rail and an upper arm and forearm mounting an inspection head pivotally coupled to one another for visual inspection of the top, bottom and side external surfaces of the impingement sleeve. The interior manipulator mounts to the open end of the combustion casing and includes an arm mounted for universal pivotal movement to the mount, actuators for pivoting the arm and motors for extending and rotating an inspection head about pan and tilt axes within the interior of the transition piece body.

Abstract: Radial pressure is applied to a turbine generator armature bar using a simple hand held device that can be readily manipulated by a single human operator. A retainer platform has two wedge shaped portions with handles, and by the operator sliding the wedge shaped portions with respect to each other the operative width of the platform may be adjusted, including to slide and lock the platform in a conventional dovetail slot in a stator. An inflatable bladder is positioned on or mounted to the top surface of the platform and is dimensioned so as to apply radial pressure (for example through a filler) to armature bars mounted in the stator. A conduit, preferably having a valve with quick-release actuator in it, extends from the inflatable bladder and connects to a source of gas under pressure.

Abstract: Radial pressure is applied to a turbine generator armature bar using a simple hand held device that can be readily manipulated by a single human operator. A retainer platform has two wedge shaped portions with handles, and by the operator sliding the wedge shaped portions with respect to each other the operative width of the platform may be adjusted, including to slide and lock the platform in a conventional dovetail slot in a stator. An inflatable bladder is positioned on or mounted to the top surface of the platform and is dimensioned so as to apply radial pressure (for example through a filler) to armature bars mounted in the stator. A conduit, preferably having a valve with quick-release actuator in it, extends from the inflatable bladder and connects to a source of gas under pressure.

Abstract: Radial pressure is applied to a turbine generator armature bar using a simple hand held device that can be readily manipulated by a single human operator. A retainer platform has two wedge shaped portions with handles, and by the operator sliding the wedge shaped portions with respect to each other the operative width of the platform may be adjusted, including to slide and lock the platform in a conventional dovetail slot in a stator. An inflatable bladder is positioned on or mounted to the top surface of the platform and is dimensioned so as to apply radial pressure (for example through a filler) to armature bars mounted in the stator. A conduit, preferably having a valve with quick-release actuator in it, extends from the inflatable bladder and connects to a source of gas under pressure.

Abstract: A process for installing a stator slide under a stator wedge in a radially oriented slot of a stator core assembly includes: a) loading windings in the radial slot, the radial slot having axially extending dovetail grooves in opposing sidewalls thereof; b) loading at least one stator wedge and stator slide in the dovetail grooves of the slot, and tightening the at least one stator wedge with the stator slide; c) loading at least one additional stator wedge in the dovetail grooves; d) locating at least one additional stator wedge slide relatively loosely under the additional stator wedge: and e) using the at least one stator wedge as a force reaction point, applying a force to the additional stator slide to drive the additional stator slide under the additional stator wedge.

Abstract: A rotatable brush suitable for removing growths and encrustations from submerged surfaces comprises a support, bristles attached to one face of the support adjacent to the periphery thereof and extending away from said one face, and a flexible or elastic membrane surrounding the bristles and which extends substantially from the support to substantially within 10 mm to 40 mm from the free ends of the bristles remote from said one face. The support may have one or more orifices each perforating both faces. The bristles may be formed of steel strips and the membrane may be made of rubberized canvas or nylon.