Abstract: In the apparatus of the present invention, air flow control inserts are disposed within the formed tube air outlet manifolds of a heat exchanger of the counterflow type wherein the manifolds have openings communicating with air passages of the heat exchanger core. Each insert is generally tubular in shape, having an intermediate cylindrical tube portion, and larger diameter end portions, which are substantially equal to the diameter of an outlet manifold. Each intermediate insert portion is initially provided with a plurality of peripheral, longitudinally equally spaced slots, equal in number to the number of openings in a manifold, and of such circumferential lengths as to subtend angles substantially equal to the angles subtended by the manifold openings. Tube material adjacent the slots is then urged inwardly of the tube to form apertures and adjacent louvers.

Abstract: An electric power supply system for a load wherein two prime movers, a gas turbine and a synchronous electric motor receiving its motive energy from a source of electric power, such as a public utility, are utilized to simultaneously drive an electric generator. A fuel controller, which is responsive to the output of the generator, operates in an isochronous mode and regulates the supply of fuel to the gas turbine from a fuel source to bring the turbine, generator, and motor up to operating speed. A paralleling controller, which is responsive to both the output of the generator and the output of the utility power source connects the motor to the utility when the outputs of the generator and utility are of equal frequency and phase so that the motor shares the load in driving the generator.

Abstract: Drive apparatus providing input gearing with an input shaft adapted to be connected to a single-shaft gas turbine, output gearing with an output shaft for connection to a load, a fluid coupling interconnecting the input and output gearing, and fluid supply apparatus for directing metered fluid to the fluid coupling to control the amount of coupling, which provides for the speed of the output shaft to be varied, thus enabling the powering of loads characteristically having high starting and uneven running torques, such as positive displacement pumps and compressors.

Abstract: Heat exchanger apparatus for a gas turbine which is provided with a heat exchanger of the formed plate counterflow type including a core having a gas turbine exhaust gas inlet surface with integral air outlet manifolds, and an inlet gas temperature controller which controls the temperature of the gas impinging on the manifolds and core surface. The temperature controller consists of a housing defining a gas flow path to the heat exchanger core surface, fluid passages within the housing which direct the gas at substantially full gas temperature onto the manifolds, and heat absorber structure within the housing which absorbs heat from the gas to reduce the temperature to less than full gas temperature during transient conditions, such as turbine start-up, and directs the gas onto the core surface.

Abstract: Conveyor method and apparatus wherein there is provided a package carrying tray, a pair of endless control chains, a pair of endless load chains, and a motor and sprocket wheel-drive arrangement for rotating the chains in synchronism. The tray is so connected to points on the chains that the tray is maintained in substantially horizontal and vertical positions during portions of tray movement from and to package loading and unloading areas while compensating for changes in spacing between the points during movement from one position to the other. The connection involves providing a pair of pins each on an opposite side of one end of the tray, with each of the load chains secured to a pin at a point for pivotal movement. A pair of control arms are each secured to a pin at its end, and have a slide thereon which is fastened to a point on one of the control chains for pivotal movement. Fork assemblies, cooperable with the tray, provide for the loading and unloading of packages at designated stations.