Abstract: A power steering fluid system is filled through port (56) in the direction of normal circulation of the fluid (24).

Abstract: A fastening device of the type used to secure a plurality of like or unlike materials together comprising an integral thermoplastic body having opposing cross bar like ends connected by an intermediate portion. The intermediate portion is provided with a weakened portion so that when opposing human gripping forces are applied to the cross bar like ends, the intermediate portion readily breaks thereby releasing the materials without harming them.

Abstract: The object of the invention is to provide more effective film cooling to protect a wall surface from a hot fluid which impinges on or flows along the surface. A film of cooling fluid having increased area is provided by changing the direction of a stream of cooling fluid through an angle of from 135.degree. to 165.degree. before injecting it through the wall into the hot flowing gas.As shown in FIG. 1, cooling fluid is injected from an orifice (16) through a wall (10) into a hot flowing gas (11) at an angle (20) to form a cooling fluid film (12). Cooling fluid is supplied to the orifice (16) from a cooling fluid source (13) via a turbulence control passageway (14) having a curved portion (18) between two straight portions (17 and 19).The angle (24) through which the direction of the cooling fluid is turned results in less mixing of the cooling fluid with the hot gas (11), thereby substantially increasing the length of the film (12) in a downstream direction.FIGS.

Abstract: In a process for producing aluminum, which process conventionally includes electrolytically decomposing alumina to aluminum metal in a molten electrolyte bath between a carbon anode and a cathodic interface formed between a molten aluminum metal pad and sides electrolyte bath, the bathA. being predominantly NaF and AlF.sub.3,b. containing CaF.sub.2 and Al.sub.2 O.sub.3, andC. being covered by a frozen crust,The improvement including providing in the bath 5 to 10 weight-% LiF, while maintaining in the bath a weight ratio NaF to AlF.sub.3 of 1.04 to 1.15, and while maintaining a frozen layer bounding the sizes of the aluminum metal pad and bath.