Abstract: A machine for forming the so-called tucked selvedge is disclosed, which comprises two thread-grasping units, a thread cutting unit and a movable hook-needle. The second thread-grasping unit is laterally shifted relative to the first like mechanism. The hook-needle serves to grasp the weft thread and to insert it in the warp shed as this becomes available. The working sequence of all of these mechanical units is warranted by appropriate, specially provided cam and linkage mechanisms. The advantage is that thread waste for the formation of a dummy selvedge is prevented.

Abstract: Alkylatable aromatic hydrocarbons are alkylated with olefins and alkylhalides under anhydrous alkylating conditions in the presence of a metallic cation exchanged trioctahedral 2:1 layer-lattice smectite-type catalyst in which the metallic cation has a Pauling electronegativity greater than 1.0. In a specific embodiment, there is provided a catalyst comprising a trioctahedral smectite-type clay having the structural formula:[(aM.sup.+1 +bM.sup.+2 +cM.sup.+3).sup.VI (dD.sup.+3 +eD.sup.+4 +fd.sup.+5).sup.IV O.sub.20 (OH).sub.4-y F.sub.y ] (x/z)R.sup.zwherein the cations M are in the central octahedral layer and have an ionic radius not greater than 0.75A, the cations D are in the two outer tetrahedral layers and have an ionic radius not greater than 0.64A, R is at least one metallic cation having a Pauling electronegativity greater than 1.0, such as Al.sup.3+, In.sup.3+, and Cr.sup.3+ in cation exchange positions on the surface of the clay platelets, and wherein11.ltoreq.a+2b+3c.ltoreq.12.331.ltoreq.3d+4e+5f.

Abstract: R-sulfoxides of the formulae ##STR1## wherein ##STR2## represents an usual penicillin or cephalosporin amide group and X is selected from the group consisting of hydrogen, hydroxy, an alkanoyloxy and the residue of a nucleophilic agent and their salts and esters are prepared by oxidation of the corresponding penicillins and cephalosporins to convert the sulfur atom in the ring to a sulfoxide group and separating and isolating the penicillin- or cephalosporin R-sulfoxide so formed from the reaction mixture or by acylation of the free amino group of the intermediate 6-aminopenicillanic acid R-sulfoxide and 7-aminocephalosporanic acid R-sulfoxide and derivatives. A preferred straight oxidation method is the photosensitized oxygenation method.

Abstract: Therapeutically useful 16-dehydro-androstane derivatives of the general formula: ##STR1## processes for their preparation and pharmaceutical compositions for the treatment of dermatological disorders, which contain as active ingredient at least one of the 16-dehydro-androstane derivatives as defined by the above formula.

Abstract: A method of producing a siliceous cover layer on a semiconductor element or wafer so that the temperature coefficient of the cover layer is approximated to the temperature coefficient of the semiconductor wafer, comprises distributing a combined emulsion over the wafer by centrifugal force. The combined emulsion is formed by making a mixture of a first emulsion of a non-doped, pure, silica emulsion and a second emulsion of a heavily-doped silica emulsion and adjusting the ratio of the first and second emulsions so that the temperature coefficient of the formed layer will be substantially identical with the temperature coefficient of the semiconductor element in form of a wafer or die. After the cover layer is hardened, the peripheral bead which forms from the emulsion mixture is etched off so that the exposed semiconductor surface, as well as the front side of the semiconductor die or wafer, are ready for epitaxial coating.

Abstract: A construction panel comprising two substantially parallel sheets of material interconnected by bridging portions integral with the sheets, the sheets and bridging portions being formed by a moldable hard-setting material reinforced by a plurality of randomly oriented metal fibers distributed therein. Also described is a method for making such a panel.

Abstract: A printing ink which rapidly dries under the influence of heat, in particular from infra-red radiation, and which is composed of:A non-polar solvent,A modified phenol- or cresol formaldehyde resin,A crosslinkable unsaturated polyester,A peroxide catalyst for said polyester, andA pigment.

Abstract: The invention pertains to a hoisting device, characterized by the fact that it mainly consists of a housing to which the load is suspended, and in this housing a driving pulley consisting of two half pulleys for the cable, which is suspended from a fixed point, whereby this driving pulley is provided with means which press the cable uniformly or practically uniformly into the driving pulley over a large arc, and with means which press aforesaid half pulleys away from each other at the locations where the cable enters and leaves the pulley, in such a manner that no friction occurs when the cable enters or leaves the driving pulley, whereby this pressing apart is performed in such a manner that no or practically no increase of pressure occurs on the cable on the other side of the pulley.

Abstract: Oxazolidines and tetrahydro-1,3-oxazines which are substituted with 3-acryloyl or 3-methacryloyl groups are prepared by adding to an excess of a ketone and in the presence of a hydrogen chloride acceptor, about equimolecular amounts of a 2- or 3-amino lower alkanol and of acryloyl chloride or methacryloyl chloride, heating the mixture, and eliminating the unreacted ketone by destillation. The ketone corresponds to the formula: ##STR1## wherein R.sub.1 = alkyl (1-4 C),R.sub.2 = alkyl (1-4 C) or phenyl, orR.sub.1 and R.sub.2 together represent the atoms necessary to complete an alicyclic group.These unsaturated oxazolidines and tetrahydro-1,3-oxazines may be homo- or copolymerized, and these polymers may be used as plasticizers for gelatin, e.g. in photographic layers containing gelatin.

Abstract: A method is described of increasing the stability of direct-positive silver halide emulsions comprising reduction- and gold-fogged silver halide grains by the step of adding to the emulsion subsequent to the fogging, a sulphite and a gold compound.

Abstract: A method for etching fine grooves in surfaces by the combination of pulsed currents in a modified E.C.M. (Electro Chemical Machining) method in combination with a flow guiding template.The method is very suitable for the etching of grooves in a surface used in a bearing.

Abstract: Toner powders for developing electrostatic images are provided which contain in epoxy resin organic dye that, although in itself insoluble in the resin, is solubilized therein by one or more substances selected from the group consisting of complete esters and alkyl and aryl amides of o- and m-phthalic acid, carbonic acid, phosphoric acid, benzoic acid and benzenesulfonic acids and condensation products of formaldehyde with alkyl and aryl amides of benzenesulfonic acids.

Abstract: The invention relates to an apparatus for assembling the louvres of louvred blinds to the supporting ladders and elevating members and includes a vertically disposed flap pivoted at its bottom and having a ladder guide along one face. A louvre is inserted horizontally between the two vertical stringers and between two adjacent rungs thereof. The flap lying to one side holds the ladder obliquely such that the rung above the louvre is to one side of a hole therethrough. The louvre is then lifted and a vertical needle for inserting an elevating member such as a cord or chain enters the hole as the louvre is lifted. This lifting motion also lifts the ladder which motion causes the flap to pivot and flip to a position on the other side of the hole so that the next successive rung will be on the other side of the hole and the needle. The assembly continues and results in the rungs of the ladder being disposed alternately on opposite sides of the elevating member.

Abstract: A flow control apparatus positionable within the discharge nozzle of a drench gun to control leakage of liquid therethrough by means of a series of holes to increase the surface tension within the liquid adjacent the liquid outlet of the nozzle.

Abstract: A cooker for meatballs and the like has a semi-cylindrical trough mounted on a frame for rotation about its own substantially horizontal but slightly inclined axis. The trough is rocked to and fro by a controlled driving device to swing between extreme positions and optionally to stop between the extreme positions. The trough has a meatball inlet at one end and a meatball outlet at the other end. Between those ends the trough has interrupted, interior, helical vanes staggered with respect to each other on opposite sides of the center of the trough to impell the meatballs from one end to the other as the trough rocks. The trough includes a jacket having inlet and outlet connections for heating oil and may also have radiant heaters directed toward the inside of the trough.

Abstract: Polymers, particularly useful as flame-proofing agents, are prepared by the reaction of a bis-epoxide with a phosphorus-containing bispiperazide.

Abstract: A method is described of developing a photographic silver halide element containing developable silver halide by development in the presence of a development accelerator which is a polyaddition compound having recurring units of the following general formula, the recurring units containing at least one thioether sulphur atom linked to two carbon atoms: ##STR1## wherein: Q is --O--, --S--, --S alkylene S-- or --O alkylene O-- wherein the alkylene group may be interrupted by oxygen or sulphur,Each of X.sub.1 and X.sub.2 represents oxygen or sulphur,Alk stands for alkylene which may be interrupted by oxygen or sulphur, andR is hydrogen or COR.sub.1, SO.sub.2 R.sub.1 or CONHR.sub.1 wherein R.sub.1 is an alkyl group or an aryl group andWherein at least one of R, Q, X.sub.1, Alk and X.sub.2 is or comprises a thioether sulphur atom.

Abstract: A method is described of developing a photographic silver halide element containing developable silver halide by development in the presence of a development accelerator which is a compound corresponding to the following general formula and containing in its molecule at least one thioether sulphur atom linked to two carbon atoms: ##STR1## WHEREIN: R is hydrogen, hydroxy, hydroxyalkyl, alkoxy, alkylthio or alkylamino,Alk is en alkylene group which may be interrupted by --O--, --S--, or --N(Q)-- wherein Q is hydrogen or a C.sub.1 -C.sub.

Abstract: A weighing apparatus for measuring loads having a movement with one or more vibrating strings where the mechanical elements of the movement are non-adjustable and further including an evaluating device with arithmetic logic units for introducing constants into the evaluating device that can be adjusted during initial calibration of the apparatus to remove errors inherent in the movement.

Abstract: A monolithic, multilayer, ceramic capacitor is formed by introducing molten metal into a matrix having thin electrode regions between dielectric strata, through holes, each of which extends through a face of said matrix and provides communication between the outside of said matrix and at least one of said regions, around wires or rods inserted in said holes, thereby providing external leads for said capacitor. A similar process is used to provide internal and external connectors for multilayer, ceramic, circuit boards.