Abstract: A pressure regulating shut-off valve (PRSOV) for an aircraft anti-ice system includes a valve body defining an inlet and an outlet and a fluid flow path between the inlet and the outlet. The valve includes a first piston is operable as a shut-off piston, a second piston is operable as a shut-off piston and as a regulating piston and a third piston is operable as a regulating piston, the third piston being actuable to regulate flow between the inlet and the outlet.

Abstract: A pressure regulating system includes a valve including a valve inlet and a valve outlet, a regulating piston positioned in a fluid pathway between the valve inlet and the valve outlet, a chamber in fluid communication with the regulating piston, a pressure setting valve in fluid communication with the chamber, a solenoid valve in fluid communication with the chamber and a sense line fluidly communicating with the valve inlet with the solenoid valve. The pressure setting valve is configured to vent gas to an ambient environment when a pressure within the chamber exceeds a threshold value. The solenoid valve is configured to move from a first position to a second position, the first position fluidly connecting the chamber with the sense line, and the second position fluidly connecting the chamber to the ambient environment (and thereby disconnecting the sense line from the chamber).

Abstract: Direct positive photographic elements are disclosed employing internal latent image silver halide emulsions associated with developer autoxidation promoter agents constituted by 5 or 6 membered nucleus-containing heterocyclic compounds comprising an azomethine group, whose methine group is substituted with a 5-amino-1,2,4-triazolyl group, and/or copper complex compounds thereof.Preferably said direct positive photographic elements are multi-layer elements comprising internal latent image type type silver halide emulsion layers sensitized to different regions of the visible light and associated with image-dye providing compounds (photographic color couplers).

Abstract: Direct positive photographic elements are disclosed employing internal latent image silver halide emulsions associated with developer autoxidation promoter agents constituted by 5 or 6 membered nucleus-containing heterocyclic compounds comprising an azomethine group, whose methine group is substituted with a 5-amino-1,2,4-triazolyl group, and/or copper complex compounds thereof.Preferably said direct positive photographic elements are multi-layer elements comprising internal latent image type type silver halide emulsion layers sensitized to different regions of the visible light and associated with image-dye providing compounds (photographic color couplers).

Abstract: 2-equivalent 5-pyrazolone magenta couplers having a 1,2,4-triazole with a halogen in the 3-position and a hydrogen in the 5-position thereof are particularly useful in color photographic emulsions.

Abstract: Two-equivalent pivalylacetanilide couplers having attached to the reactive methylene thereof a 5-membered (simple) or 6-membered (simple or condensed) heterocyclic nucleus through nitrogen atoms respectively in 1 position and 3 position thereof, said 5-membered nucleus including nitrogen atoms in 2 and 4 positions respectively bonded through double bonds to carbon atoms in 3 and 5 positions thereof and said 6-membered heterocyclic nucleus being chosen within the class including 1,2,3-benzotriazine-4-(3H)-one, 1,3-benzodiazine-4-(3H)-one and pyrimidine-4-(3H)-one nucleus.