Abstract: A lightweight composite fabric characterized by high retention of fiber content during initial laundering and exceptionally high strength as measured close to the edge of the fabric with cover and fabric aesthetics equivalent to conventional fabrics having 50% higher basis weight are produced by hydraulically needling short staple fibers and a substrate of continuous filaments formed into an ordered cross-directional array. The individual continuous filaments of the array are well spread and separated so that they have a spaced-apart relationship allowing interentangling of the short staple fibers with the continuous filaments to form more than about two reversals in the staple fibers per cm of staple fiber length between the faces of the fabric. The staple fibers have a linear density of less than about 0.3 tex per filament, are from about 0.5 cm to about 1 cm in length and comprise about 20% to about 50% of the weight of the composite fabric.

Abstract: An inertial filter is installed in the discharge of a pump which is used to transfer slurries, and the filtrate stream from the filter serves as the pump seal flush.

Abstract: A restrained web of orthogonal strands is formed by first traversing the strands according to the disclosure of U.S. Pat. No. 4,016,631 in a diagonal pattern with V-shaped reversals between two rows of strand-restraining elements along the selvedge of the web and then converting the diagonal pattern to an orthogonal pattern by forming an extended loop in each strand along the selvedge.

Abstract: A pharmaceutical composition for the therapeutical treatment of anxiety and neurodystonic states characterized by combining an anxiolytic belonging to the class of the benzodiazepines and a beta-adrenergic receptor blocking agent, in which said benzodiazepinic anxiolytic is 3-N,N-dimethylcarbamoyloxy-1-methyl, 5-phenyl, 7-chloro, 1,3-dihydro-2H-1,4-benzodiazepin-2-one- and said beta-adrenergic receptor blocking agent is 1-(0-methoxyphenoxy)-3-isopropylamino-propan-2-olo.

Abstract: A self-stringing jet device for fluid texturing of yarn has a yarn needle mounted in the jet body through which yarn passes to the outlet end of the jet. There is a high efficiency venturi located in the passage of the yarn needle to facilitate stringup.

Abstract: Samples to be analyzed, such as physiological fluids (blood, urine, etc.) may be processed using centrifugal techniques. The sample is centrifugally passed through a separation column to extract the desired component from the aqueous phase. Next, the extracted component is washed free of extraneous materials and then eluted from the separating column by centrifugally passing a suitable solvent therethrough. The aqueous phase and extracted components are collected in separate containers.To facilitate this method, an apparatus is provided that accommodates switching between fluid flow paths in a centrifuge. The centrifuge utilizes a swinging bucket rotor which contains a separating column, the top end of which employs a fluid reservoir for holding the sample to be extracted. Fluids are passed through the separating column (a first flow path) from a central distributor in the centrifuge rotor while in operation.

Abstract: Apparatus for severing electrical contacts from a carrier strip and loading the severed contacts into a hand tool which can then be used to insert the contacts individually into an apertured circuit element such as a printed circuit board.

Abstract: Presence of a selected carboxylic acid in the aqueous polymerization mixture during suspension polymerization of tetrafluoroethylene has been found to reduce the amount of adhesions formed during the polymerization.

Abstract: Substituted dioxolanes are provided having the formula ##STR1## wherein R.sup.1 and R.sup.2 are H or a phenyl group substituted with up to 5 substituents of lower alkyl or nitro, with the proviso that at least one of R.sup.1 and R.sup.2 is a phenyl group having an orthonitro substituent; and R.sup.3 and R.sup.4 are each H or lower alkyl. These dioxolanes, as well as appropriate dioxanes, are used to intercalate a polyoxymethylene polymer to make such a polymer having thermally stable but photochemically sensitive and degradable random linkages ##STR2## in the chain where n is 0 or 1, R.sup.3 and R.sup.4 are H or lower alkyl and at least one of R.sup.1 and R.sup.2 is a phenyl group with an orthonitro substituent. By exposing a film of the polymer to light through a transparency followed by heating or a heated treatment with base, a relief image of the copy on the transparency is obtained.

Abstract: Penicillins of the formula ##STR1## wherein R is hydrogen , sodium, potassium or certain ester groups; R.sub.1 is in the .alpha.-configuration and is hydrogen or methoxy; R.sub.2 is hydrogen, lower aklkyl, cycloalkyl, cycloalkenyl, cycloalkadienyl, substituted or unsubstituted phenyl, benzyl, phenethyl, thienyl, furyl, or pyridyl, or 2-amino-4-thiazolyl; R.sub.3 is lower alkyl or substituted or unsubstituted phenyl, benzyl, phenethyl, thienyl or furyl; and R.sub.4 is hydrogen or lower alkyl; are disclosed. These compounds possess useful antibacterial activity.

Abstract: Hexacoordinated transition metal compounds and fuel compositions containing them, said compounds represented by the structure ##STR1## wherein: M is selected from at least one member of the group Mn, Fe, Co and Ni,R.sub.1 and R.sub.2 are hydrocarbyl groups of 1 to 6 carbon atoms,R.sub.3 is hydrogen or an alkyl of 1 to 6 carbon atoms,R.sub.4 and R.sub.5 are hydrogen or alkyl of 1 to 4 carbon atoms, andA is a divalent hydrocarbyl group of 2 to 10 carbon atoms selected from a member of the group alkylene, phenylene and cycloalkylene, each member providing 2 or 3 carbon atoms between the nitrogen atoms with the proviso that when A is phenylene the number of carbon atoms between the nitrogen atoms is 2.

Abstract: In the use of certain metal salts of the hemi-perester of maleic acid as catalysts for the polymerization and curing of ethylenically unsaturated monomers and of methyl methacrylate-containing syrups the addition of an activator such as sodium bisulfite provides a substantial reduction in the curing time. The process is relatively insensitive to the amount of filler used. The salts of maleic hemi-peresters, in combination with the activators, are also useful for polymerizing ethylenically unsaturated monomers.

Abstract: A fuse element for a cartridge fuse-link comprises a thin metal wire helically wound about a thin flexible core consisting of an electrically and heat insulating filament. Spaced sections of the winding at opposite ends of the fuse element are metallized so as to short-circuit the turns in these sections. The short-circuited sections are electrically interconnected by the active turns of an intermediate section which constitutes the fusible link. The fuse element is disposed in an insulating cartridge with its short-circuited sections connected to conductive end caps on the cartridge.

Abstract: Certain fluoropolymers, when chemically modified by reacting them with sulfur or phosphorus containing compounds, become hydrophilic materials useful for making ion-exchange membranes, especially diaphragms for electrolytic cells, particularly chlor-alkali cells used in the production of chlorine, hydrogen and sodium hydroxide from brine.

Abstract: A travel awning for attachment to the side of a vehicle, including an elongated housing for receiving and storing component members of the travel awning, the elongated housing formed from a main housing and a cover housing and with at least some of the component members of the travel awning received partially within the main housing and partially within the cover housing when the housings are closed to a storage position, the cover housing hinged along a bottom portion of the main housing to rotate downward when the housings are opened to an open position and with some of the component members of the travel awning received within the main housing and with some of the component members of the travel awning received within the cover housing when the housings are in the open position, and the housings when in the open position providing unrestricted access to all of the component members of the travel awning.

Abstract: A tone ringer for a telephone set, responsive to both low-voltage call signals of relatively high frequency and high-voltage call signals of a relatively low frequency, comprises an active filter connected across a line loop for transmitting the low-frequency call signals in attenuated form and the high-frequency call signals in amplified form to a storage capacitor in a signal detector which in the presence of either type of call signal accumulates a sufficient charge to activate a threshold circuit in that detector. A normally blocked current source, connected across the line loop via a diode bridge, is unblocked by this threshold circuit to energize a tone generator working into an electro-acoustic transducer.

Abstract: A box discharger particularly suitable for ladles and the like, of the type comprising reloadable refractory plates and with a wedge locking system, which reduces the operation for positioning the tilting plate with respect to the stationary plate to the adjustment of a single element instead of several elements as required by the present art.

Abstract: A valve comprising a substantially cylindrical housing, a substantially annular cylindrical resilient valve seating member in said housing, said seating member having an inner surface and an outer surface, a butterfly valve having an outer periphery, a shaft extending through the housing and the seating member for mounting the butterfly valve for movement between a first position wherein its outer periphery is in engagement with the inner surface of the seating member and an open position wherein the outer periphery of the butterfly valve is spaced from the inner surface, a plurality of ribs on the outer surface of the valve seating member for bearing against the inner surface of the housing, chambers between the ribs, a plurality of openings in the valve seating member upstream of the butterfly valve for permitting pressurized fluid to enter the chambers to thereby tend to move the resilient valve seating member radially inwardly into engagement with the outer periphery of the butterfly valve when the latter

Abstract: Certain fluoropolymers, when chemically modified by reacting them with sulfur or phosphorus containing compounds, become hydrophilic materials useful for making ion-exchange membranes, especially diaphragms for electrolytic cells, particularly chlor-alkali cells used in the production of chlorine, hydrogen and sodium hydroxide from brine.

Abstract: In a yarn windup a reciprocating traverse guide is provided with two slots for handling two individual yarns. The shape of the guide and the location of the slots in combination with an elongated guide member located adjacent the traverse guide facilitate string up of individual yarn lines into their respective slots.