Abstract: A single chamber type combustion structure particularly for industrial gas turbine plants in which the axis of the chamber forms a perpendicular to the axis of the compressor-turbine group wherein primary combustion air, delivered by the compressor coupled to the turbine driven by the combustion gases, flows through an annular duct formed between concentric outer and inner walls of the single combustion chamber from one end thereof to the other where its direction is then reversed for flow into the combustion zone within the inner wall through a rotatable vortex blading surrounding a fuel burner. A circular assembly of circumferentially spaced adjustable air deflector vanes is mounted in the annular duct for controlling the distribution of the primary air flowing through the duct prior to entry to the rotatable vortex blading.The combustion gases discharged from the combustion chamber enter the turbine by way of an annular nozzle concentric with the turbine inlet.

Abstract: A foundation anchor for fastening the base of a machine upon a foundation is equipped with a vertically extending anchor bolt movable in its axial direction, with a clamping nut being provided for attaching the base of the machine to the anchor bolt at the upper end thereof. The bottom of the anchor bolt is pivotally mounted within a cavity which extends beneath the upper surface of the foundation and compensating rings, having a wedge-shaped sectional configuration taken in the axial direction, are provided between the base of the machine and the clamping nut.