Abstract: A process for manufacturing an air-gap-insulated exhaust elbow of a motor vehicle exhaust system achieves in a simple manner a manufacturing of space-saving air-gap-insulating exhaust elbows which is reliable with respect to the process and can be precisely reproduced. The exhaust elbow is joined together from several air-gap-insulated exhaust pipes as well as the pertaining entry flanges and the exit flange, which, by way of an internal high-pressure metal forming process, are shaped in an air-gap-insulating manner from one double pipe respectively. The ends of the air-gap-insulated exhaust pipes which are to be connected with one another are first trimmed while opening the respective air insulating gap and are then fitted into one another. In such case, the ends are shaped such that the fitted connections of the outer pipes and of the inner pipes of the exhaust pipes to be connected are made with play.

Abstract: A cryostatic vessel 12 is radially interconnected inside a tubular thermal shield 18. A shield first endplate 20 includes a plurality of spacers 30 which are disposed in axial abutment with a corresponding first endplate 14 of the vessel during assembly. A shield second endplate 22 is disposed in axial abutment against an opposite end of the shield, and includes alignment holes 36 receiving corresponding alignment pins 32 extending from an opposite endplate 16 of the vessel. The spacers maintain a predetermined clearance between the endplates of the vessel and shield which clearance is precisely maintained upon fixedly joining both shield endplates to the shield.

Abstract: An apparatus and process are provided for filling a passage between first and second elements with fiber insulation material. The apparatus comprises a support, an exhaust box rotatably mounted on the support and having an inner cavity and a fixture, a device effecting rotation of the exhaust box, and first and second elements. The first element has an outer surface and the second element has an inner surface. The second element is positioned relative to the first element such that the first and second elements define therebetween the passage which is filled with fiber insulation material. At least one of the first and second elements is perforated. The apparatus further includes at least one filling nozzle adapted to supply fiber insulation material to the passage and a vacuum source adapted to draw a partial vacuum in the exhaust box inner cavity while the fiber insulation material is supplied to the passage.

Abstract: Automatic assembling method and apparatus using a plurality of pallets on a conveyer belt for assembling photographic film cassettes, or the like. Each pallet has a secondary work holder and a primary work holder. Parts of a secondary assembly are sequentially fed to the secondary work holder and are assembled into the secondary assembly in the secondary work holder. The secondary assembly and other parts of a primary assembly are sequentially fed to the primary work holder and are assembled into the primary in the primary work holder.

Abstract: A pipe section formed of a polymeric material which has a substantially constant thickness throughout, the terminal edge of the female connection having a reinforcement structure which rigidifies the end of the female connection and prevents deformation, the pipe section preferably having a flared end, and the reinforcement structure preferably being a semicircular channel formed at the end of the pipe section by a mandrel after initial extrusion of the pipe section; along with a method and apparatus for forming the pipe section, a pipe assembly including such pipe section, and a method of forming the pipe assembly.

Abstract: A fuel nozzle centering assembly and method employ bodies of a substantially wearable and sacrificial material mounted to an outer periphery of a tip of a burner fuel nozzle for a gas turbine combustor. The tip of the fuel nozzle extends through an opening of an annular collar attached to a liner of a main combustion chamber of the gas turbine combustor and an outer periphery of the tip is disposed radially inwardly from the annular collar such that the bodies of sacrificial material are disposed between the outer periphery of the fuel nozzle tip and the annular collar of the liner and space the fuel nozzle tip from the liner collar. The bodies of material prevent the fuel nozzle tip from contacting the liner collar during assembling of the fuel nozzle into the liner.

Abstract: In a method for sealing a vacuum double wall container made of metal which the vacuum double wall container made of metal having a space portion is formed by joining the inner container and the outer container made of metal at respective mouths, an exhaust hole is pierced on an appropriate position of a frame on a bottom portion of the outer container of the vacuum double wall container made of metal in order to evacuate the space portion, and the exhaust hole is sealed with a brazing material in a vacuum heating furnace, a method for sealing a vacuum double wall container made of metal includes the steps of piercing an exhaust hole projected on an appropriate position of a frame of an outer container for evacuating a space portion, installing a member for inhibiting flow more projecting than the exhaust hole and a guide for covering the exhaust hole at a periphery thereof, mounting a brazing material which is melted at a medium temperature of 630˜750° C.

Abstract: A method of producing a spiral wound gasket for sealing fluid such as a liquid including water and oil, and a gaseous body including vapor and gas and a device for producing the spiral wound gasket. The tip portion of a hoop material is cut and raised thereby forming a checking stepped-portion. The checking stepped-portion is caught by a checking pawl, so as to wind the hoop material around a core drum. After winding the hoop material around the outer periphery of the core drum, at least once, the checking pawl is retracted from the outer periphery of the core drum, thereby separating the checking pawl from the checking stepped-portion. The spiral wound gasket produced by the present invention exhibits an excellent sealing property. Moreover, it also has an excellent durability.

Abstract: A cryostatic vessel is radially interconnected inside a tubular thermal shield. A shield first endplate includes a plurality of spacers which are disposed in axial abutment with a corresponding first endplate of the vessel during assembly. A shield second endplate is disposed in axial abutment against an opposite end of the shield, and includes alignment holes receiving corresponding alignment pins extending from an opposite endplate of the vessel. The spacers maintain a predetermined clearance between the endplates of the vessel and shield which clearance is precisely maintained upon fixedly joining both shield endplates to the shield.