Abstract: Alkynylamino-nucleotides and labeled alkynylamino-nucleotides useful, for example, as chain terminating substrates for DNA sequencing are provided along with several key intermediates and processes for their preparation.

Abstract: A main lever for a high-speed rotary dobby having two opposing sidepieces in which two corresponding opposing frusto-conically flared holes are formed in each side piece by pressing or milling for a removable main pin for coupling the lever to the dobby crank arm. Two inner annular recesses concentric with the holes are also formed for housing a bearing of increased axial length. The sidepieces are joined together without welding by a special annular spacer hub acting as the fulcrum for the lever and, at the free end of the curved guide for the slider which adjusts the travel of the heddle frames, by a spacing and vibration-damping block. The slider passes between the two sidepieces in the curved guide zone and is locked in position by a special locking device. Lever modifications and special reinforcements are also provided.

Abstract: A microcircuit bias-current supply in a wristwatch-pager. An FM-radio receiver in a microcircuit paging device operates intermittently with a short on-time and long off-time to reduce power consumption and preserve battery life. The bias-supply circuit distributes predetermined bias currents to a plurality of functional circuit areas of the microcircuit die, the bias currents being disabled during off-time of the receiver such that the current drain of the entire microcircuit is virtually zero, being in the range of nanoamps. The inefficiencies and disadvantages of a series switch to stitch power on and off are eliminated by providing a plurality of switched current sources which perform the dual function of circuit biasing and current switching.

Abstract: An electroluminescent panel lamp being of either a split-electrode or parallel plate type is disclosed wherein the lamp consists of a main body having an electroluminescent layer between first and second conductive layers. An integral electrical connector tab is formed from the materials of the main body. In the parallel plate embodiment the first conductive element is exposed so as to form a front electrode, the rear electrode being the second conductive layer. In the split-electrode embodiment, the second conductive layer on the main body and connector tab is split into two halves, the two halves on the tab being the electrical connections and lying in the same plane. An alternating current charge applied to one half of the split second conductor will capacitively couple it to the other half through the unconnected first conductor. A universal connector that can connect an electrical power source to either the parallel plate or split-electrode embodiment is also disclosed.

Abstract: A device for the correlation between optical beams having spatially modulated intensities has an active glass window, which on one side is illuminated at the same time by a reading and a pumping beam through one or a plurality of semitransparent mirrors. The reading beam has radiations with a wavelength equal to that of a transition between an intermediate and fundamental energy level. The pump beam has radiations with a wavelength corresponding to the energy of the highest power level of the material forming the active glass, obtaining on the other side of the window a light beam representing the correlation betwen the pumping and reading beams.

Abstract: A blowout preventer for use on wells and especially adapted to use on a pumping well during a steam flood operation including an upper housing having oppositely disposed rams for extension and retraction between the sealing and non-sealing with a longitudinal member through the blowout preventer into a well, such a polished rod of a pump, a lower housing connected with the upper housing, and a heat responsive seal assembly in the lower housing for sealing with the polished rod during steam flooding, the heat responsive seal assembly including an elastomer seal plug designed to swell to form a seal with the polished rod during steam flooding and including means to compress the seal plug after steam flooding to return the plug to an original non-sealing volume and size below the steam flooding temperature.

Abstract: Slit film yarn based on propylene polymer, resistant to postfibrillation. The propylene polymer is a block copolymer of propylene and ethylene made up of chain segments consisting of propylene homopolymer and of chain segments consisting of random copolymer of propylene and ethylene.This slit film yarn is suitable for the manufacture of synthetic lawn.

Abstract: A connector assembly comprising a female and a male connector part. At least one coding element is attached to each connector part. The coding element provides for a code face having at least one recess. The code faces of the male and female connector parts allocated to each other are complementary in shape. When connector parts allocated to each other are plugged into each other the faces of the respective coding elements engage with each other. Only a limited number of all possible code face shapes are used so that unambiguous code face sets are obtained.

Abstract: A parallel distributed processing network of the back propagation type is disclosed in which the weights of connection between processing elements in the various layers of the network are determined in accordance with the set of steady solutions of the stiff differential equations governing the relationship between the layers of the network.

Abstract: A cartridge has a case of an electrically non-conductive material. A head of the case is typically formed with a coaxial through bore seating a terminal assembly comprising an annular electrode within which is an annular insulator holding a central electrode. A spark gap is defined between inner ends of the central electrode and annular electrode. The outer end of the central electrode terminates in a recess in the outer face of the head of the case in axially spaced relation to the outer end of the annular electrode. A hammer in operative association with the cartridge has spaced contact points in alignment with the annular electrode and central electrode, the contact points having the forementioned axial spacing. The entrance to the recess of the outer face of the head of the case is covered by an insulator which is displaceable by a boss on the opposed face of the hammer.

Abstract: A process for the in-line preparation of gelatin solutions comprising(a) mixing gelatin particles with an aqueous solution to wet the gelatin forming a gelatin-aqueous solution mixture,(b) heating rapidly said mixture to a temperature capable of digesting gelatin in said mixture, and(c) maintaining the digested gelatin at said temperature for a period to dissolve the gelatin particles into the aqueous solution.The process provides gelatin solutions for photographic uses in an improved manner without the general dissolution problems. The process is quick and is accomplished in-line, preferably continuously.

Abstract: A stretch broken fiber reinforced resin tow is formed from resin reinforced with continuous filaments by tensioning the tow while heating it to a temperature sufficient to soften the resin in the tensioning zone to break all of the filaments in a random manner.

Abstract: A process to detect the loss of a continuous spun web of plexifilament fibers exiting a forwarding apparatus depends on the manner in which the filament oscillate in a cross machine direction prior to depositing onto a collecting surface. The loss of these fibers, due to hang up in the filament forwarding device, can cause multiple position spinning machine loss due to the knock down of nearby spinning positions or wrap the sheet on forwarding rolls. The hang up in the forwarding device is referred to as a blow-up. This process detects the instant a blow-up occurs through the loss of electrostatic charge due to the absence of the oscillating swath at the sensor. When the instant charge is lost at the sensor, a signal indicates a blow-up has occurred.

Abstract: A support for an external ear view mirror for motor vehicles which comprises a support rod having an intermediate vertical portion for supporting the mirror and lower and upper transverse portions extending substantially horizontally from opposite ends of the intermediate vertical portion. Two supports are connected with free ends of the lower and upper transverse portions, respectively, for supporting said support rod on a vehicle body. A first support means includes a structure for rigidly connecting the free end of the lower transverse portion of the support rod with the one support, and an element for fixedly connecting the one support with the vehicle body. The second support includes a bracket for pivotally attaching the free end of the upper transverse portion with the second support and an arrangement for pivotally attaching the second support means to the vehicle body.

Abstract: A process for the selective oxidation of carbon monoxide from a mixture of organics over a supported platinum or palladium catalyst.

Abstract: A method and apparatus is disclosed for automatic elimination of frequency instabilities in a receiver frequency converter. Such instabilities result from temperature variations and mechanical vibrations of the local oscillator of a first stage converter. A marker signal is introduced into the first stage down converter mixer and is subjected to the same variations in frequency conversion as is the received signal from an antenna. Intermediate down converted received signals and an intermediate down converted marker signal are received by a second stage converter where such signals are applied to a mixer, the output of which is free of frequency variations introduced by the local oscillator of the first stage converter.

Abstract: The auxiliary external rear view mirror set has a smaller auxiliary convex mirror mounted on a smooth comparatively larger base mirror so that the smaller auxiliary convex mirror may be tilted to a limited extent to more precisely position the wide angle field of view it provides. The convex mirror is attached to a tilting plate by an adhesive means. The tilting plate has a central projecting member with a cavity. A support plate attached to the smooth base mirror by another adhesive means has a corresponding central bar with a spherical head which engages in the cavity of the tilting plate so that the convex mirror and tilting plate are pivotable. Stop pieces mounted on the support plate spaced from the central bar are positioned to be engagable with offset members attached to the rear side of the tilting plate so that the tilting of the convex mirror is limited to some extent.

Abstract: Thermally and hydrolytically stable fluorocopolymers, especially melt-processible fluorocopolymers, for example, tetrafluoroethylene/hexafluoropropylene copolymers, having --COOH and/or --COF groups on the polymer chains are contacted and reacted with a secondary or tertiary amine and heated at 160.degree.-400.degree. C. for a time sufficient to convert --COOH and/or --COF groups to stable --CF.sub.2 H groups, the resultant stabilized copolymers being useful, for example, in electrically conductive compositions having a good combination of melt flow and electrical conductivity.

Abstract: A process for fluorination by contacting a haloolefin with molten alkali metal acid fluoride to provide a fluorinated saturated or unsaturated hydrocarbon having at least one more fluorine than the starting haloolefin.

Abstract: A method for detecting pathogen infection in a host is provided. The method comprises lysing phagocytes from the host to release soluble components of the pathogen which are detected subsequently using a specific binding assay.