Abstract: The electrical sensor of the present invention for electrochemical analysis comprises a sheath and at one end thereof a semi-permeable membrane which is impermeable for macromolecular materials and bacteria, and further is comprising a measuring probe insertible to said sheath.The sheath is constructed in the form of a pericatheter and the measuring probe comprises a completely self-contained sensor, capable of operating independently of the said sheath, the membrane of said sensor being in direct contact with the membrane of said pericatheter.

Abstract: A method is disclosed for extracting lysergol and ergolinic alkaloids from seeds of plants belonging to the Convulvulaceae family, Ipomoeae section, petaloidea genus (Choisy). The process applies to ground and defatted seeds and, after an orderly sequence of extraction, filtrations and crystallization, a first insoluble fraction is obtained, which contains the expected ergoline alkaloids and lysergol, whereafter a second sequence of extractive operations is carried out in order to separate as discrete fractions, the ergolinic alkaloids on the one hand, and the lysergol on the other hand.

Abstract: New derivatives of amino acids which have the general formula ##STR1## are useful as angiotensin converting enzyme inhibitors.

Abstract: To intercept and measure radiant energy back-scattered from the entrance end of an optical fiber irradiated by a pulsed laser beam, a semitransparent mirror is interposed between the irradiated fiber and a first lens assembly focusing the laser beam upon its entrance end while a second lens assembly directs reflected light rays toward a photodetector feeding an electronic processor. An extremity of the fiber including its entrance end is received in a chamber with light-absorbing walls filled with a liquid of substantially the same refractive index as the fiber; the mirror may be disposed either in front of the chamber entrance or in its interior.

Abstract: In a process for preparing pigmentary .gamma.-quinacridone by oxidizing .beta.-dihydroquinacridone with a mild alkali-stable oxidizing agent in a liquid medium consisting of alkali metal hydroxide, water and a polar, alkali-stable, water-soluble organic liquid, this invention provides for an improvement wherein the oxidation is conducted in the presence of 0.1% to 1% by weight of an o-carboxybenzamidomethyl quinacridone compound whereby the resulting .gamma.-quinacridone exhibits sufficiently high strength so that milling or solvent treatments to increase pigment strength are unnecessary.

Abstract: A water-dispersible triazine herbicide composition, having improved crystallization characteristics when dispersed in water below about 37.degree. C. at concentrations above the solubility limits of the triazine, consisting essentially of (a) 1-methyl-3-cyclohexyl-6-dimethylamino-s-triazine-2,4(1H,3H)-dione, and (b) at least about 2% by weight, basis dry triazine, of a surfactant selected from the group consisting of isopropyl naphthalene sulfonic acid and alkali metal or alkaline earth metal salts thereof.

Abstract: A spinneret assembly that includes a filtration cavity and a spinneret has a plate between the cavity and spinneret. The plate has an enclosed channel connecting the cavity and spinneret. The channel contains a plurality of stationary mixing elements and lies in a plane substantially parallel with the spinneret.

Abstract: A system for transferring raw covers for motor vehicle pneumatic tires to vulcanizing autoclaves arranged in at least one row thereof from an overhead conveyor having a plurality of trolleys each carrying one raw cover, comprising a secondary conveyor branch of the overhead conveyor, onto which the trolleys can be diverted to a wait unloading, and a transfer mechanism comprising a plurality of transfer devices running on an overhead track system and each having a support column suspended from a trolley which runs on the track, the support column serving to guide a first frame for vertical displacement and the first frame itself supporting and guiding a second frame for horizontal movement, the second frame carrying at least one gripper device at the end of an arm which is rotatable about its longitudinal axis to position the gripper device pointing upwardly, in which position it is able to remove a cover from a trolley, or downwardly, in which position it is able to deliver the cover to the selected autoclave

Abstract: A rotary tower crane having a tower which can be extended step-wise by adding a section between the boom supporting segment and segments of the supporting structure is provided with a host and crab mechanism for adding or removing a section adjacent to the boom without the use of another crane. The tower is provided with a movable inner tower member slidably disposed in the upper tower segment. The inner tower member has transverse members adapted to be retracted so they will pass bracing members on the tower and to expand to a point where they will support the inner member on the brace members when immediately above the brace members.

Abstract: A process for reducing the chemical oxygen demand of water removed from a mixture of crude tetrahydrofuran and water, said process comprising contacting said mixture in the vapor phase with a dilute sodium hydroxide solution, then optionally contacting the tetrahydrofuran-water mixture after condensation with a concentrated sodium hydroxide solution and separating water from the thus treated mixture, said water having reduced chemical oxygen demand over water that is removed from said mixture merely by distillation.

Abstract: In the use of certain metal salts of the hemi-perester of maleic acid as catalysts for the polymerization and curing of ethylenically unsaturated monomers and of methyl methacrylate-containing syrups the addition of an activator such as sodium bisulfite provides a substantial reduction in the curing time. The process is relatively insensitive to the amount of filler used.The salts of maleic hemi-peresters, in combination with the activators, are also useful for polymerizing ethylenically unsaturated monomers.

Abstract: A method for preparing ergoline derivatives in which the ergoline structure is variously substituted by morpholino-piperazino- and other active radicals to obtain novel compounds useful in cardiology as alpha-blocking, vasodilating, antihypertensive active ingredients of pharmaceutical preparations.

Abstract: An antenna mounting structure is supported and oriented by three linear hydraulic actuators responsive to linear position transducers of a passive stabilization system serving as a vertical reference for keeping an antenna precisely pointed at a geostatically satellite during motion disturbances. The antenna is assembled with each of the linear actuators connected thereto through a gimbaled mount which facilitates accommodation of the requisite angulation thereof necessitated by motion in adjacent actuators. Response in each actuator is derived through an independent linear servo loop directly communicating with a linear position transducer constructed in scaled replication of the respective antenna actuator geometrical configuration and assembled to an inertially stabilized platform.

Abstract: Polyether derivatives are provided having the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.5 and R.sup.6 are the same or different and are hydrogen, halogen, nitro, lower alkyl or cyano; R.sup.3 and R.sup.4 are the same or different and are hydrogen, halogen or together represent .dbd.O; and n is 1 to 5. These compounds are useful as coccidiostats and anti-inflammatory agents.

Abstract: Photopolymerizable compositions or layers containing an ethylenically unsaturated compound, a photoinitiator or photoninitiator system, and at least one polymeric binder, at least half of the binder being cellulose acetate butyrate having a composition of 44 to 50 weight percent butyryl, 5.0 to 8.5 weight percent acetyl and 0.5 to 1.0 weight percent hydroxyl. The use of the specific cellulose acetate butyrates in photopolymerizable compositions improves cold flow resistance and processability, i.e., development. The compositions and layers are particularly useful in preparing dry film photoresists and solder masks.

Abstract: Soldering with solder fluxes consisting essentially of mono- and/or di-alkyl phosphates and alkyl amine salts of these phosphates wherein the alkyl groups of said phosphates and their salts contain 4-20 carbon atoms.

Abstract: A zone refiner and the process of operating same wherein the freezing interface between the molten zone and the solid zone is corrugated. The use of such a corrugated interface enables one to pass the interface more rapidly along the lenth of the refiner for a given refining efficiency.

Abstract: Salts and acids containing a triheteropolyanion in which one addenda atom of a heterododecatungstate or heterododecamolybdate is replaced by one tin atom or by two germanium atoms, in which the tin atom or the germanium atoms are bonded to a ligated transition metal, have outstanding utility as catalysts for the oligomerization of terephthalic acid with ethylene glycol, and for the isomerization of 1-butene, and for the dehydration of 2-butanol and subsequent isomerization of the 1-butene formed.

Abstract: In order to monitor the movements of a patient who is confined to a bed and to alert supervisory personnel in the event that the patient attempts an unauthorized departure therefrom, an array of radiant energy emitters and a corresponding array of radiant energy detectors are installed in the headboard and in the footboard of the bed. In one embodiment, emitters supply infrared energy to the detectors so as to cover the bed with a blanket of invisible light. When the transmission of infrared energy is interrupted for a predetermined time by an overactive patient, both local and remote warning signals are generated to immediately alert the supervisory personnel to the possibility of impending patient injury.

Abstract: Magnetic printing process, and apparatus for carrying out same, comprising:(a) forming a magnetic image on a ferromagnetic material which is imposed on an electrically conductive support;(b) developing the magnetic image by decorating same with a ferromagnetic toner comprising a ferromagnetic component and a resin which substantially encapsulates the ferromagnetic component; and(c) transferring the developed image to a substrate.