Abstract: Traffic signals at an intersection are controlled by one or more controllers of the state/interval type, located in the vicinity of the intersection. One or more remote units that are portable or mobile communicate with the controller via a coded signal to command specific light operations, instruct a secondary controller to take-over light control at the intersection from a primary controller, and to reprogram the operation of the controller on a temporary or permanent basis. The remote units generate a code that must be received accurately by the controller before commands are followed. In order to economically provide such a code, the code generator employs a diode matrix that orders data words and address words and is easily reprogrammed. The traffic signal indicator operation is monitored by the controller both to detect controller error, as by a voltage error resulting from an incorrect controller action, and to detect a non-controller error, as by a current error resulting from a burned out indicator.

Abstract: Paste composition for metal surface metallization containing 65 to 95% by weight silver and 5 to 35% by weight cadmium/antimony alloy dispersed in a liquid vehicle.

Abstract: An arithmetic device having successive arithmetic registers connected in cascade, with buffer registers at each end of the cascade. An information exchange circuit bidirectionally connected to all the arithmetic registers for controlling information transfer therebetween such that the first register is connected to all of the other registers and every other register is also connected to a preceding and a succeeding register.

Abstract: Carboxyalkyl dipeptides of the formula ##STR1## wherein R.sub.4 is a 3-, 4-, 5-, or 4,4-substituted proline are disclosed. These compounds are useful as hypotensive agents due to their angiotensin converting enzyme inhibition activity.

Abstract: A method is provided for preparing compounds of the formulae ##STR1## wherein A may be --C.dbd.C-- or --C.tbd.C--, by reducing an epoxy lactone of the structure ##STR2## to form the corresponding epoxy hemiacetal, reacting the epoxy hemiacetal with a silyl compound to form an epoxy silyl acetal, reacting the epoxy silyl acetal with an acetylenic derivative to form a silyl acetal, removing the silyl protecting group to form a hemiacetal, reacting the hemiacetal compound with an appropriate Wittig reagent to form a protected difluoro PGF.sub.2.alpha. type compound, removing the protecting group, reacting the difluoro PGF.sub.2.alpha. with an iodine compound to form an iodoether and reacting the iodoether with a base to form the desired compounds.Novel intermediates produced in the above method are also provided.

Abstract: A group of heterocyclic antifoggants based on quinoxaline is useful in very high speed gelatino-silver halide emulsions.

Abstract: A frequency synthesizer having a delay line for a controlling element. The output frequency of a voltage controlled oscillator (VCO) is sampled with a directional coupler and input to an in-phase power divider. The first output of the power divider is input to a delay line to provide a delayed signal. The delayed signal and the non-delayed signal from the second output of the power divider are input to a phase detector. The output of the phase detector is a DC voltage representative of the phase difference between the delayed signal and the non-delayed signal. An analog gate inputs the phase detector output to an oscillator driver that controls the VCO. When the phase difference deviates from a predetermined level the oscillator driver outputs an error voltage to adjust the VCO until the proper phase difference is achieved which will be a condition of phase lock wherein the output frequency is phase locked to the delay line.

Abstract: 7-Oxabicycloheptane and prostaglandin analogs are provided having the structural formula ##STR1## and including all stereoisomers thereof. The compounds are cardiovascular agents useful, for example, in the treatment of thrombolytic disease.

Abstract: Polyether carbonate diols are prepared by coupling segments of a poly(tetramethylene ether) glycol with a dialkyl carbonate, a cyclic carbonate or with phosgene. The carbonate diols are useful in preparing polyurethanes.

Abstract: The level of aldehyde and ketone impurities in tetrahydrofuran can be significantly reduced by bringing the tetrahydrofuran into contact with sodium borohydride and then separating the modified impurities and the tetrahydrofuran.

Abstract: A pigment of TiO.sub.2 particles coated with alumina, whose particle surfaces have associated with them cerium cations and sulfate-, phosphate or silicate anions, can be used to prepare paper laminates having a high degree of lightfastness.

Abstract: Blends of an isotactic propylene polymer with a copolymer of propylene with a C.sub.6 -C.sub.12 .alpha.-olefin, wherein the mole proportion of the .alpha.-olefin in the copolymer is 10-55%; the crystallinity number of the copolymer is 10 to 37; and the sum of the mole proportion of .alpha.-olefin in the copolymer and the copolymer's crystallinity number is 20-65 are useful in a variety of applications requiring a broad range of properties from soft elastomers to rigid plastics, including spunbonded fiber materials, film, and adhesives.

Abstract: A position sensitive alarm is mounted to an item of personal property to be protected so that if the property is moved, an audible alarm is produced. The alarm includes a housing in which a battery, a buzzer and a position-sensitive switch are mounted therein. An aperture is cut in the housing so that the sound produced by the buzzer is not muffled within the housing. The components within the housing are fully enclosed, except for the battery. The battery is mounted within an open sided battery case, which itself is mounted within the housing. The circuit, lacking an on/off switch, is disarmed and armed by removal and replacement of the battery in the battery case.

Abstract: There is disclosed a method of monitoring the temperature of a cutting element in a sterile docking apparatus for splicing two sterile thermoplastic tubes together by using a resistor-heated cutting means, the method comprises (1) supplying a constant current to the resistor; (2) measuring the initial voltage of the resistor; (3) calculating, according to predetermined empirical relationship(s), the voltage, time or both required to achieve a desired cutting means temperature if the initial voltage is within a suitable range, (4) measuring repeatedly the voltage of the resistor and the time to determine whether (a) the voltage reaches the calculated voltage within a specified time frame or (b) the calculated time has been reached within a specified voltage range and (5) splicing the tubes with the cutting means if the time frame or voltage range is met. The method is also applicable to other resistor-heated elements in other devices having a constant heat load environment.

Abstract: Forming a layer of a noble metal on a contact by screen printing a thick film noble metal paste on a predetermined area of terminal metal flat strip stock. The paste is heated on the strip stock using an induction heating coil.

Abstract: Process for toning imagewise tacky surfaces by multiple application of at least two toners containing different low melting compounds having a polar substituent and melting in the range of 25.degree. to 110.degree. C., which in contact with one another render the toners tacky at room temperature thus yielding higher color density or change of color tone.

Abstract: Alkenylsulfonylureas have been found to be effective as herbicides and plant growth regulants.

Abstract: Stable aqueous solutions of cationic polyvinylalcohol/melamine-formaldehyde resin interaction products are provided comprising polyvinyl alcohol polymer and cationic melamine-formaldehyde resin acid colloid in a polyvinylalcohol/melamine-formaldehyde resin acid colloid weight ratio, on a dry basis, of from about 0.4/1 to about 5/1, and sufficient water to give a solids content of from about 0.7% by weight up to a level that will not cause gelation to a stage of no flow under the force of gravity in 48 hours but not in excess of 6% by weight. These aqueous polyvinylalcohol/melamine-formaldehyde interaction products have good stability, and high absorption capacity onto cellulose pulp. The use of these interaction products in paper making results in increased processing capability and improved wet and dry strength of the paper.

Abstract: Cephalosporins 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, ##STR2## R.sub.4 is hydrogen or lower alkyl; R.sub.5 is hydrogen, lower alkyl, ##STR3## or --(CH.sub.2).sub.n --N--(lower alkyl).sub.2 ; R.sub.6 is hydrogen, sodium, or potassium; n is an integer from 1 to 4; are disclosed. These compounds are useful as anti-bacterial agents.

Abstract: Novel p-oxooxazolidinylbenzene compounds, such as l-4-[5-(hydroxymethyl)-2-oxooxazolidin-3-yl]- benzenesulfonamide, are useful as antibacterial agents.