Abstract: A hermetically sealed connector for a glove box and a method for exchanging such connectors in which leakage of radioactive material from within the glove box is minimized and an auxiliary glove box is not needed to exchange the connectors. The connector is formed as a cylindrical member having a flange portion hermetically sealed to a packing provided in a through hole in the wall of the glove box. To exchange connectors, a nut is removed from the outer end of the old connector and a tube is screwed thereto. The other end of the tube is fitted to the inner end of the new connector. The tube is then shoved through the packing until the flange of the new connector aligns with the packing. The tube is then removed from the inner end of the new connector and a nut is screwed on in replacement for the tube.

Abstract: An apparatus for continuously concentrating and denitrating a radioactive nitrate solution by microwave includes a rotatably supported concentrating and denitrating vessel disposed within an oven into which microwave is applied through waveguides. The concentrating and denitrating vessel comprises a circular vessel body supported rotatably about its center and a plurality of partition plates positioned radially inside the vessel body so as to divide the interior of the vessel body into a plurality of compartments. The nitrate solution supplied into the vessel is heated, evaporated, concentrated and denitrated in sequence in each of the compartments during one rotation of the vessel to form a denitrated oxide powder. The denitrated powder produced in one of the compartments is transferred into a receiving pan positioned adjacent to the outer periphery of the vessel.

Abstract: A synchronizing pulse separating circuit provides synchronizing pulser from an incoming composite television signal wave including such a wave formed of switched plural individual television signals of differing array D.C. level. The pulse separating circuit employs keyed clamping circuitry to clamp the peak synchronizing levels of the incoming wave to a reference level, and clipping circuitry directly coupled to the clamping circuitry to provide output synchronizing pulses responsive to the clamped incoming, such pulses. The output synchronizing pulse train is also employed to key on the clamp circuit.

Abstract: A video signal coding system includes multiple sources to load a digital version of a composite video signal into an associated storage memory. The several memories or memory portions are interrogated employing a common reference wave to obtain the stored digitized video signals in synchronism with one another.In accordance with the principles of the present invention,feedback circuitry is employed in each digital video signal source to sample each video program in a like phase relationship with respect to the signal color burst. Accordingly, the color information is reliably preserved and is in synchronism between video programs upon signal read out from memory.