Abstract: A radial nozzle assembly for use in a pressure vessel to enable fluid flow through the vessel wall is provided. The radial nozzle assembly has a nozzle and a cup-shaped flange extending from one end of the nozzle. The nozzle has a bore disposed therethrough along its length to permit fluid flow through the wall of the pressure vessel. The flange is defined by a generally cup or dome-shaped wall having an open end. The nozzle assembly is secured to the wall of the vessel such that the nozzle is disposed in a radial orientation to the flange and possibly in a horizontal orientation.

Abstract: A tubular housing is provided at one end thereof with a protective glass prism facing an observation opening in a pressurized reactor. The other end of the housing is closed and the intermediate part thereof supports an inclined mirror. A viewing tubular piece is arranged transversely to the tubular housing to receive light rays reflected from the mirror. The free end of the viewing piece is also provided with a protective glass prism.

Abstract: A liquid level control device for monitoring the level of water in a steam generating tank between predetermined upper, intermediate, and lower levels, with the tank equipped with a valve for introducing water into the tank and heat energy valve means to generate steam to the water, comprising: a glass gauge tube adapted to be vertically mounted exteriorally of the tank; a top and bottom cover covering the ends of the glass gauge tube, with a bottom cover including an opening for communicating with a liquid in the tank and the top cover including an opening for communicating with steam generated in the tank; upper and lower magnetic float means mounted co-axially within the glass gauge tubes; the upper magnetic float means including means to activate the valve when the water is the region of the predetermined intermediate level so as to introduce water into the tank until the water is in the region of the predetermined upper level, and to deactivate the valve and stop the introduction of water when the water