Abstract: This invention relates to a process for producing ethylcarboxymethylcellulose 0.4 to 1.2 in D.S. of carboxymethyl and 1.5 to 2.5 in D.S. of ethyoxyl. The compound of the present invention possesses good solubility in organic solvents and is useful as an enteric coating material.

Abstract: An apparatus for controlling electrical power in a data processing system having one or more central processor units and a plurality of peripheral units, including circuitry for selectively connecting a voltage signal to each peripheral unit to cause power to be supplied thereto, and metering means for measuring the amount of time the voltage signal is provided to each separate peripheral whereby the supply of power to any one of the peripheral units may be centrally controlled and monitored. Also included is a circuit for sequentially connecting the voltage signal to the peripheral units.

Abstract: Reinforcing fibers of plastic having a surface tension of from 40 dyn/cm to about the surface tension of water are disclosed. The fibers can be easily and uniformly disposed in matrices. For organic matrices, a surface tension of 40-50 dyn/cm is effective. For cement matrices, a surface tension about 70-75 dyn/cm is effective. The high surface tensions are obtained by a corona treatment and subsequent application of a hydrophilic avivage. Corona treatment may be performed on the fibers, or on films from which the fibers are made.

Abstract: Anthracycling antibiotics of the formula: ##STR1## wherein R is --CO--CH.sub.2 OH, --CHOH--CH.sub.3, --CO--CH.sub.3 or --CH.sub.2 --CH.sub.3 having antitumor and antibacterial activity are prepared by culturing a new mutant strain of microorganism designated as Macromonospora peucetica sp. nova and which has been deposited with the American Type Culture Collection under numbr No. 31366 ATCC.

Abstract: A method and apparatus are shown for monitoring respiration volumes by continuously measuring, while the patient breathes, variations in the patient's chest cross sectional area, or preferably, variations in both chest and abdomen areas. Each area is measured by measuring the inductance of an extensible electrical conductor closely looped around the body, by connecting the loop as the inductance in a variable frequency LC oscillator followed by a frequency-to-voltage converter and a voltage display. Calibration is made by measuring the area variations for a few breaths while directly measuring corresponding volumes of breath, preferably while the patient assumes at least two body positions, for example sitting and supine. The method and apparatus may also be used to monitor changes in area of any non-magnetic object.

Abstract: The present invention preferably comprises a modular air core coil inductance assembly which is comprised of a plurality of spiral windings which are magnetically coupled to each other and disposed in planes which are orthogonal to the longitudinal axis of the resultant air core coil. The modular air core coil assembly may preferably comprise a plurality of air core coil subassemblies each of which preferably comprises at least one spiral winding disposed on a winding support member, with the winding preferably being an electrical conductor wound in the shape of an Archimedes spiral disposed in a plane orthogonal to the longitudinal axis of the coil; a fixing or holding member which is disposed facing the spiral winding in order to set or hold it in position; at least two shields fixed on the coil ends in order to prevent magnetic coupling between the different coils; and at least two spacing members disposed so as to obtain the desired distance between the shield and the winding.

Abstract: Photosensitive compositions which contain as a photosensitive resin prepared by the condensation of the co-condensated novolak resin of the mixture of phenols such as in a combination of tert-butyl (or tert-octyl) phenol and phenol and/or cresol and formaldehyde, with o-quinonediazido sulfonic (or carboxylic) acid or contain said novolak resin as an additive for a photosensitive o-quinonediazido compound are discosed.

Abstract: A frost-proof fire hydrant of the type wherein the valve is biased towards its open position by the fluid pressure in the shoe. The fire hydrant includes improved means disposed in the bonnet and cooperating with the valve stem for maintaining the valve in the closed position against the water pressure in the shoe.

Abstract: Deoxygenation of a blood sample prior to determination of carbon monoxide hemoglobin is performed in a capillary tube containing a dry reducing agent. Ready for use capillary tubes having long storage life contain dry reducing agent and are sealed at both ends. Preferred capillary tubes contain mixture of reducing agent, pH buffer and anticoagulating agent present as a dry material on the interior tube wall.

Abstract: A method and apparatus for measuring the temperature of malignant tissue to be frozen during cryosurgery, involving the insertion of an active needle electrode (18) laterally of and below the malignant tumor (T or T') to be treated, applying an indifferent electrode (20) to the patient's skin (S) at a point displaced from the tumor, applying a low voltage D.C. potential (12) across the electrodes to pass a current of less than 20 microamperes through the tissue, and monitoring (16) the current decrease during freezing to determine the point at which to terminate the freeze treatment with cryocongelation of all the malignant tissue but without substantial destruction of the underlying tissue.

Abstract: Unsaturated polyester resins having an acidity number of 5-90 mg. KOH/g. and a molecular weight of 500-5000 and which are capable of entrapping air or other inert gases so as to form structural foams and contain in the chain 0.1 to 20 mol % of amide and/or amine groups. These groups are preferably derived from the reaction of an organic compound having two reactive groups at least one of which contains nitrogen with the polycarboxylic acid and/or polyvalent alcohol contained in the polyester resin.

Abstract: Improved flat annular washer for indicating tension on associated high tensile strength bolt. Washer bears against either bolt head or nut of given radius. Washer includes means for indicating stress on washer which visibly moves when stress on washer, which is related to tensile stress on bolt, reaches a preselected level.

Abstract: The invention relates to a process for the separation of one isotope from a mixture of isotopes, which comprises selectively exciting the desired isotope to an energy level at a distance dE below the ionization continuum by means of laser irradiation, said level dE being at such a distance beneath the ionization continuum that the excited atoms at this level can be ionized by irradiation with an infrared laser, irradiating the excited atoms with an infrared laser so as to ionize them selectively, and separating the ionized atoms by deposition on a desired substrate. According to a modification of the process the desired isotope is excited in two or more steps of laser irradiation to an energy level above the ionization level, the excited atoms are permitted to decay by autoionization so as to form ions of the desired isotope, and these are collected.

Abstract: An aqueous coating composition in the form of an aqueous dispersion of acrylic copolymer prepared by polymerizing a mixture of acrylic monomers in an aqueous medium containing an electroconductive copolymer. The composition forms coatings having both heat sealing properties and antistatic properties and also possessing transparency, anti-blocking properties, slipping properties and resistance to weather and to water.

Abstract: A watertight RF coaxial jack connector is provided which includes an elastomeric layer disposed in sealing relationship with its upper opening. The layer is formed so as to guide the center pin of a mating coaxial plug connector to puncture the layer and engage a split pin provided within the jack connector body. A watertight seal is thereby effected for preventing moisture from entering inside the jack connector through the upper opening. A second elastomeric layer is mounted within the jack body beneath the first layer. The second layer both supports the split pin and exerts an upward compressive force on the first elastomeric layer.

Abstract: A rigid shell or framework (10) for a building structure, comprising a first pair of spaced supporting frames (11, 12) defining the end walls of the shell, a second pair of spaced supporting frames (13, 14) disposed at right angles to the first pair of frames and defining the side walls of the shell, and a plurality of further supporting frames (15) disposed intermediate the first pair of supporting frames, being supported by the second pair of frames, and in turn providing the structural support for the side walls, roof and floor defined by the rigid shell.The first pair of supporting frames comprises a pair of vertical load-bearing members (18, 19) integral with and secured to a pair of horizontal load-bearing elements (16, 17) at points spaced from the ends of such elements by from 1/8th to 1/4th their respective lengths.

Abstract: Pigments of the formula ##STR1## wherein X.sub.1 and X.sub.2 may be the same or different from one another and each is hydrogen, chlorine, fluorine, bromine, lower alkyl having 1 to 3 carbon atoms or alkoxy having 1 to 3 carbon atoms; and wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of pyrazolonyl and substituted pyrazolonyl are obtained by coupling a pyrazolone with a 4,4'-diaminobenzanilide. The pigments are useful in rotogravure inks.

Abstract: A low viscosity unsaturated polyester resin for making products, optionally reinforced with glass fibers is described, which comprises an alkyd prepared by esterification of maleic anhydride and/or acid and/or fumaric acid in association with isophtalic acid, with one or more glycols, essentially comprising dipropylene glycol, and further comprises 25-40% by weight of the total resin of an ethylenically unsaturated monomer copolymerizable with the alkyd essentially chosen among styrene and vinyl toluene, the alkyd having a molecular weight/double bond factor between 300 and 390 and an amount of free functional groups between 50 and 85 mg of KOH per g of alkyd inclusive. The products obtainable from said resin are also described. The resin behaves better in processing has lower heat development and shrinkage than the comparable prior art resins while the mechanical properties of the finished products are very good.

Abstract: A low viscosity unsaturated polyester resin for making glass fiber reinforced products is described, which comprises an alkyd prepared by esterification of maleic anhydride and/or acid and/or fumaric acid, optionally together with phthalic anhydride and/or acid, with one or more glycols, essentially comprising dipropylene glycol, and further comprises 27-34% by weight (of the total resin) of an ethylenically unsaturated monomer copolymerizable with the alkyd, essentially chosen among styrene and vinyl toluene, the alkyd having a molecular weight/double bond factor between 200 and 360 and an amount of free functional groups between 80 and 100 mg of KOH per g of alkyd inclusive. The products obtainable from said resin by conventional processing techniques are also described. The low viscosity of the resin results in better workability and better behavior of the resin during molding while the mechanical properties of the finished products are very good.