Abstract: A holster worn by a shooter for supporting a broken barrel shotgun. The holster is preferably constructed from a first and a second piece of leather. The second piece of leather has a lobe and a cut-out portion so that when the two pieces of leather have been molded, an opening is defined at the lobe. The two pieces of leather also form a belt loop within the holster so that it can be worn by a shooter. The trigger guard of the shotgun is inserted into the opening with the barrel extending toward the ground approximately parallel to the shooter's leg. The trigger guard rests against the second piece of leather with the stock extending over the cut-out portion, so that the lobe will prevent the shotgun from falling away from the shooter. Therefore, in this position the shotgun is supported in a safe and secure manner without the shooter having to manually support the gun.

Abstract: A control valves includes a body defining a central cavity arranged between a fluid inlet and outwardly-diverging first and second fluid outlets respectively disposed in a common transverse plane. A valve member is arranged in the cavity for rotation between first and second operating positions where a transverse fluid passage through the valve member alternatively communicates the fluid inlet with one or the other of the fluid outlets. To minimize fluid turbulence when the valve member is rotated to an alternate operating position, the fluid passage has a convergent entrance for maintaining the passage in permanent communication with the fluid inlet as well as an oblong exit opening with spaced side walls for enabling the exit opening to temporarily span the first and second fluid outlets as the valve member is turned between its respective operating positions.

Abstract: The invention relates to novel polyarylethers which are essentially ketonic and which are based on the dibenzofuran molecule. Such polymers are, surprisingly, amorphous, have high Tg's eg>200.degree. C., and have surprisingly high solvent resistance.

Abstract: Aromatic polyethers are produced by polycondensing monomers containing phenolic groups and aromatic halogen, at least some of the aromatic halogen-containing monomers being free of activating groups such as --CO-- or --SO--, in the presence of a copper-containing catalyst and of a basic alkali metal compound present in stoichiometric excess relative to phenolic groups and copper. The products include new polyethers, particularly containing the repeating unit Ph.sup.1 --PH.sup.1 --O alone or with ketone containing or sulphone-containing units, where Ph.sup.1 is phenylene.

Abstract: An austenitic Fe-Cr-Mn-N stainless steel is characterized by a combination of improved castability in terms of yield and speed and the development of excellent strength and ductility levels in the cold worked condition. The low alloy stainless steel consists essentially of, in weight percent, from about 13% to 17% chromium, about 8% to 12% manganese, about 0.05% to 0.2% carbon, about 0.15% to 0.23% nitrogen, about 1.5% maximum nickel, about 1% maximum molybdenum, about 1% maximum silicon, about 1% maximum copper and balance essentially iron. The steel composition is particularly suited for cold-drawn wire which develops an ultimate tensile strength of at least about 250 ksi with elongations of at least about 10%.

Abstract: A polymer essentially of ether linked repeating units--PhCOPhPh-- I--PhSO.sub.2 PhPhSO.sub.2 Ph and II--Ar-- IIIwhere Ph is para-phenylene and Ar is a divalent aromatic group selected from phenylene and groups containing 2 to 6 phenylene radicals linked together by means of one or more links selected from the direct link, aliphatic substituted methylene, CO and SO.sub.2, provided that such SO.sub.2 --linked unit is different from unit II, unit I being present at at least 60% molar, the mutual proportion of units II and III being in the range 55:45 to 45:55 and the molar proportion of any other units being at most 20% on the total units present, said polymer having an inherent viscosity of at least 0.6.

Abstract: A duplex stainless steel which is economical and balanced to provide a good combination of properties in the as-cast condition and resists thermal transformation to martensite due the high levels of manganese. This steel is particularly suited for thin-walled castings for automotive underbody components. It is 30% to 60% ferrite and balance austenite and, in weight percent, consists essentially of:C - up to 0.07,Cr - 17 to 21.5,Ni - greater than 1 to less than 4,Mn - greater than 4 to 8,N - 0.05 to 0.15,Si - less than 2,Mo - less than 2,Cu - less than 1.5 and balance essentially Fe.

Abstract: A ferritic alloy steel having good creep strength and cyclic oxidation resistance at elevated temperatures up to 982.degree. C. (1800.degree. F.) with an optional final anneal at 1010.degree.-1150.degree. C. (1850.degree.-2100.degree. F.) consisting essentially of from about 0.01% to about 0.30% carbon, about 2% maximum manganese, greater than 2.35% to about 4% silicon, about 3% to about 7% chromium, about 1% maximum nickel, about 0.15% maximum nitrogen, less than 0.3% aluminum, about 2% maximum molybdenum, at least one element selected from the group of niobium, titanium, tantalum, vanadium and zirconium in an amount up to 1.0% and the balance essentially iron.

Abstract: An aromatic ketone having the formula XArCOPhPhOH is made by contacting an ester of formula XArCOOPhPh, whereAr is a divalent mono- or poly - aromatic group which may optionally be substituted;Ph is para-phenylene; andX is hydrogen or halogen or a nitro-, alkylsulphonyl-, arylsulphonyl-, alkylcarbonyl- or hydrocarbon groupwith a Friedel Crafts catalyst comprising one or more Lewis acids in an amount of at least 2.2 moles of such catalyst for each mole of the ester.

Abstract: A method and package assembly for retailing and microwave heating of a breaded food product is provided. The package assembly includes a container with an interior surface composed of a microwave interactive material. The container bottom has inlet air openings and the container top has outlet air openings therein. The container also has a support member for supporting the food product in order to minimize the degree of contact between the food product and the container and the support member. The container is adapted to rest on an exterior packaging sleeve whereby a generally verticle air flow pathway is provided through the container to promote convection heating and crisping of the breaded surface portion of the food product during microwave heating.

Abstract: Polyaryletherketones are prepared by polymerization of a halogen-containing aryl ketone in the presence of a stoichiometric excess of a base and a copper salt. The halogen-containing aryl ketone may be 4-chloro-4'-hydroxybenzophenone. A basic copper salt may be used but the base used to provide the excess of base is an alkali metal hydroxide, carbonate or bicarbonate.

Abstract: A process for the manufacture of 2-ethylidenehept-6-en-5-olide which comprises reacting in a liquid medium 1,3-butadiene with carbon dioxide in the presence of a palladium complex catalyst and a tertiary amine.

Abstract: A text fixture supports a test article in selected positions relative to a fixed point within the test article. A stylus extends from the test article through slots in two spaced-apart positioning plates. The alignment of the slots establishes the position of the stylus and the corresponding test article position. Means for controlling the positioning plates are provided.

Abstract: A missile guidance system is provided in which a sensor is pivotally mounted on the missile in a gimbal system having two degrees of freedom. The sensor is controlled during flight in such a manner that the axis of the sensor is aligned in a direction determined by the acceleration of the missile, and the sensor locates the target and determines the angle between the direction of the sensor axis and the direction of the target. Guidance information is derived from this angle for directing the missile toward the target. Compensation for gravity may be provided by means of a spring suitably arranged in the gimbal system. The sensor system may be either active or passive and may be responsive to any desired type of signal from the target.

Abstract: A levelling system for a travel trailer wherein first the tilt status of the trailer is sensed, and then, by means of controlled jacks on each side of the trailer, the trailer is first levelled about the pitch axis, then levelled about the roll axis, and then stabilized by bringing any jack not in contact with the ground into contact with the ground with a selected pressure.