Abstract: New indolylalkyl esters of mercaptoalkanoic acids, and salts thereof, which have the general formula ##STR1## are useful as hypotensive agents.

Abstract: An adaptive equalizer for a telecommunication system, designed to process high-frequency signals in a band on the order of 50 MHz, comprises several weighting networks with input connections to respective taps of a delay line and with output connections to a summing amplifier, each weighting circuit having a control input to which a selected corrective voltage is applied. Each weighting network includes a bridge with two arms constituted by respective secondaries of an input transformer and two other arms in the form of indirectly variable resistance elements, specifically photoresistors photoelectrically coupled to a pair of light-emitting diodes, capacitively isolated for direct current from other parts of the bridge.

Abstract: To improve adhesion of a hydrophilic photographic emulsion to a hydrophobic polyester film base the latter is pretreated by electrical discharge, flame or chemical treatment, and then given a sub-coating composed of an aqueous dispersion of gelatin, a water-soluble polyester, and a polyfunctional aziridine crosslinking agent, and this coating is then thermally cured.

Abstract: In a method of making concrete of the Portland Cement type wherein a quantity of cementitious material, such as Portland Cement, is mixed with a quantity of aggregate, generally sand and rock in varying proportions and water; and, wherein, the resulting mixture is stirred or mixed for an appropriate length of time consistent with acceptable practices in the concrete industry after which the mix is poured and allowed to set, the improvement which is characterized by the employment of fly ash as the major ingredient in the cementitious material. The improvement also includes the adding of gypsum to the initial mix in an amount equal to about 2% by weight of the fly ash and, thereafter, adding in and mixing a quantity of calcium chloride equal to about 3% by weight of the fly ash.

Abstract: This application is directed to compounds which are useful as pigments. The compounds are represented by the formula: ##STR1## where R.sub.1 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, chlorine or bromine;R.sub.2 is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, chlorine, bromine and nitro; and ##STR2## where R.sub.4 and R.sub.5 are hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, chlorine or bromine.

Abstract: 6-[(Aryloxy)methyl]-2-morpholinemethanol derivatives are provided having the structure ##STR1## wherein R is hydrogen, lower alkyl, phenyl-lower alkyl, or lower alkenyl, and Ar represents a monocyclic or polycyclic aromatic group including tetraindiols and their analogs. These compounds are useful as adrenergic modifiers, particularly in treating arrhythmia.

Abstract: New halogen substituted mercaptoacylamino acids which have the general formula ##STR1## and basic salts thereof are useful as hypotensive agents.

Abstract: An end-to-end connector for optical fibers. A plastic body has opposed sockets leading to an interconnecting bore. The sockets receive terminals in which the fibers to be connected are aligned and gripped.

Abstract: 6-Fluoro analogs of hydrocodone and oxycodone are analgesics and/or narcotic antagonists. Exemplary are 17-cyclopropylmethyl-4,5-epoxy-6,6-difluoro-3-methoxymorphinan and 17-cyclopropylmethyl-6,7-didehydro-4,5-epoxy-6-fluoro-3-methoxy- and -3-acetoxymorphinan.

Abstract: Polyester films are modified by the addition of a high molecular weight polyethylene glycol and an alkali metal salt of a sulfonic acid-substituted dicarboxylic acid ester to the reaction medium during the polymerization process. Films prepared for example, from diesters of terephthalic acid in the presence of the modifiers of this invention produce films which exhibit good permeability to water vapor.

Abstract: An amorphous silica supported palladium catalyst is provided which also contains a small amount of an additive metal compound selected from an oxide, hydroxide and carbonate of zirconium, thorium, hafnium, cerium, titanium and aluminum. By use of particular preparation conditions and the amount of additive metal salt raw material used, the additive metal compound deposits from solution before or simultaneously with a palladium compound. The additive metal compound deposits on the silica support and serves as a base for the subsequently deposited palladium compound which is later reduced to palladium metal. The described catalyst is particularly suitable as a hydrogenation catalyst in a cyclic process for the manufacture of hydrogen peroxide.

Abstract: A magnetic image decorator is disclosed wherein two or more rotatable cylindrical magnetic augers disposed in a sump of magnetically attractable toner are used in conjunction with cooperating knife blades to decorate a surface containing a latent magnetic image and to distribute and redistribute toner particles to maintain a level sump.

Abstract: Intermediates are provided having the structure ##STR1## wherein X is hydrogen, lower alkyl, lower alkoxy, halogen or trifluoromethyl. These intermediates are useful in preparing pyrazolo[1,5-c]quinazoline anti-allergy compounds.

Abstract: A compact transport apparatus is provided for serially conveying a series of objects such as circuit boards through a zone of treatment such as for ultrasonic stripping of resist from the circuit boards. The apparatus is mounted to the treatment equipment and has receptacles for receiving the objects and holding them in closely spaced relationship during transport through the zone and an elevator for lifting the object from its receptacle after having crossed the zone and control mechanism for intermittently stopping and starting the transport. During the stopping, loading of an object into a receptacle can occur and the elevator operates to do the aforesaid lifting.

Abstract: The radiation shielding surrounding a radionuclide generator of the parent-daughter type can be minimized if the containing means used to contain the support medium onto which is adsorbed the parent nuclide defines a curved path.

Abstract: Producing a fracture network in deep rock, e.g., in an ore body, by detonating explosive charges sequentially in separate cavities therein, the detonations producing a cluster of overlapping fracture zones and each detonation occurring after liquid has entered the fraction zones produced by previous adjacent detonations. High permeability is maintained in an explosively fractured segment of rock by flushing the fractured rock with liquid, i.e., by sweeping liquid through the fracture zones with high-pressure gas, between sequential detonations therein so as to entrain and remove fines therefrom. Ore bodies prepared by the blast/flush process with the blasting carried out in substantially vertical, optionally chambered, drilled shot holes can be leached in situ via a number of holes previously used as injection holes in the flushing procedure and a number of holes which are preserved upper portions of the shot holes used in the detonation process.

Abstract: A device is disclosed for smoothly, continuously, and more effectively shredding laterally-extended film material of indefinite length without jerking the film material into the device with excessive force. Cooperating cutting edges are used--one serrated, another smooth.

Abstract: Nonlinear optical device in which the crystal therein, having nonlinear optical properties, is transparent to the radiation propagating therethrough, has 6 or 6 m2 symmetry and consists essentially of the compound of the formulaLnF.sub.x (OH).sub.1-x CO.sub.3wherein Ln is La, Eu or Gd and x is 0 to 1; a preferred compound is LaOHCO.sub.3.

Abstract: A process for extracting magnesium from compounds containing magnesium oxides is disclosed. The process is carried out at lower temperatures and pressures than previous processes which does not melt the dross. The process comprises the steps of mixing magnesium oxide and calcium oxide with aluminum, compressing the mixture, heating the compressed mixture uniformally to a temperature in the range of 800.degree.-1100.degree. C. under controlled pressure to vaporize the magnesium, and condensing the vaporized magnesium on a cooled surface.

Abstract: An apparatus for detecting temperature variations over selected regions of living tissue. The invention relates to the apparatus and to the method of detecting said temperature variations for aid in the early detection of malignant tissue in the breasts. The invention provides for the use of liquid crystals encapsulated between elastic flexible sheets which represent a composite film. The crystals are responsive to changes in temperature of said tissue to display a color pattern on said film representative of said temperature variations. The film conforms to the contour of the tissue to which it is applied, without materially deforming said tissue, by evacuating air from between said film and said tissue. The color pattern produced on said film is observed and is recorded photographically to obtain a thermogram of said temperature variations.