baber/WOPTO huggingface dataset:
Patent CA-1123648-A (CA)
Title: Low silver wash-off film containing pretreated  carbon black
Inventor: FRIEDEL HORST
IPC: G03C7/06
Filed: 1979-07-20
Granted: 1982-05-18
Abstract: ABSTRACT OF THE DISCLOSURE In a light-sensitive material for tanning development containing unhardened or only slightly hardened gelatin silver halide emulsion layers, the silver content required to obtain maximum density is reduced by incorpor-ating carbon black pretreated with water-miscrible compounds which have a higher affinity for carbon black than gelatin. Suitable treatment may be provided by at least two of the following: poly-n-vinyl lactams, polyalkylene oxide deriva-tives, water-miscible compounds containing at least two OH groups, and polyalkylene oxides with a molecular weight of at least 400.
Patent CA-1127108-A (CA)
Inventor: ST LAWRENCE DAVID S
IPC: E05B73/00
Filed: 1979-08-09
Granted: 1982-07-06
Abstract: ANTI-THEFT SECURITY ENCLOSURE                    AND RELEASING MECHANISM                         ABSTRACT         A wraparound enclosure has two sections, joined by a hinged strap member, which telescopingly engage when applied around an article to form a right rectangular parallelepiped.  A microwave detectable tag is secured on the interior to one wall of the en-closure.  The sections are interlocked in the closed condition by three pairs of latches and strikes, two on each of three sides of the enclosure.  Typically the enclosure may be installed around a container holding a cassette of magnetic recording tape.  For authorized removal of the cassette and its container from a pro-tected area such as a store, the enclosure is removed by insertion in a releasing mechanism having means for grasping one section while applying spring pressure against the enclosed container through an opening in the grasped section.  A lever, upon being depressed, actuates a series of rocker plates with fingers to simultaneously engage and release all of the latches whereupon the enclosure springs open.
Patent CA-1106857-A (CA)
Inventor: BAHRMANN HELMUT
IPC: B01J31/00
Filed: 1979-08-27
Granted: 1981-08-11
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to a process for the preparation of 3-(4-methyl-3-cyclohexen-1-yl) butyraldehyde by hydroformylation of limonene in the presence of a catalyst containing a metal of Group VIII of the Periodic Table, wherein the improvement consists in using as catalyst a rhodium car-bonyl complex containing additionally a triphenyl and/or trialkyl phosphine as ligands and conducting the reaction at a pressure of 100 to 350 bars and at a temperature of 110 to 160°C, the triphenyl or trialkyl phosphines or mixture thereof being present in an amount of 10 to 50 moles per gram atom of rhodium in the reaction mixture.
Patent CA-1135916-A (CA)
Inventor: OKAMOTO MIYOSHI
IPC: D01D5/36
Filed: 1979-09-06
Granted: 1982-11-23
Abstract: ABSTRACT OF THE DISCLOSURE This invention provides an improvement in a spinneret assembly. The assembly comprises superposed rigid, first, second, third and fourth plate members. The first and second plate members partition offf a first and second polymer chamber respectively, from a second and third polymer chamber, respec-tively. The third plate member partitions off the third polymer chamber from one or more funnel-shaped fourth polymer chambers bored in the fourth plate member. The third plate member has a plurality of holes which are exposed to each fourth polymer chamber. The fourth plate member has at the lowermost end of each fourth polymer chamber an orifice. Holes bored in the second plate member confront the holes of the third plate member, each pair of confronting holes being connected with each other by a pipe. The pipe extends in such manner that a narrow circular path is formed at least around one end portion of the pipe within the hole of the third or second plate member respectively, or within another pipe extending from the hole of the second or third plate mem-ber respectively, and the polymer passage formed within the pipe is connected through the narrow circular path to the third polymer chamber. The four plate members form a plurality of series of linked polymer passages, each series having at least one joining point at which two polymer streams join together. At least one of the polymer passages upstream of the joining point has at least one cross section that is narrower than any cross section of the polymer passage down-stream of the joining point but upstream of the succeeding joining point, if any, or said at least one polymer passage upstream of the joining point has a length longer than that of the polymer passage downstream of the joining point but up-stream of the succeeding joining point, if any. The assembly produces multi ingredient multi-core composite filaments each comprised of at least three polymer phases, and avoids defects in conventional assemblies which produce filaments which are not uniform in thickness and cross section and wherein the number of core polymer ingredients in each filament is limited, etc.
Patent CA-1118917-A (CA)
Inventor: WILSON MARTIN
IPC: B03D1/004
Filed: 1979-09-24
Granted: 1982-02-23
Abstract: Abstract of the Disclosure Zinc sulfide is concentrated by a froth flotation pro-cess using a substituted benzotrifluoride compound as depressant for calcium fluoride.  The benzotrifluoride compounds are substi-tuted by hydrophilic groups such as hydroxy, carboxylic acid and amino.
Patent CA-1130280-A (CA)
Inventor: O'CALLAGHAN CYNTHIA H
IPC: C07D277/20
Filed: 1979-10-26
Granted: 1982-08-24
Abstract: ABSTRACT OF THE DISCLOSURE Cephalosporin antibiotics of general formula                         (I) (wherein R  and Rb, which may be the same or different, each represent a Clue alkyl group or Ra and Rb together with the carbon atom to which they are attached form a C3-7 cycloalkylidene group; and R1 represents a C1-4 alkyl group)  exhibit broad spectrum antibiotic activity with unusually high activity against strains of Psendomonas organisms as well as high activity against various members of the Enterobacteriaceae. The invention also includes the non-toxic salts and non-toxic metabolically labile esters of compounds of formula (I). Also described are compositions containing the antibiotics of the invention and processes for the preparation of the antibiotics.
Patent CA-1125355-A (CA)
Inventor: MCCORMICK-GOODHART MARK H
IPC: G03B27/16
Filed: 1979-11-08
Granted: 1982-06-08
Abstract: IMAGING APPARATUS     Abstract of the Disclosure Dry-process imaging apparatus for flash format imaging an imaging film having a layer of an energy dispersible image forming material on a surface thereof.  The apparatus comprises a source of electromagnetic or radiant energy, radiant energy collecting and guiding means, and support means including masking means for the imaging film.  The apparatus is especially suitable for flash format imaging microfiche cards, and enables an imaging energy source such as, for example, a Xenon flash tube, to be operated at lower energy levels for shorter time periods while achieving uniformity of energy distribution over a comparatively large area at the film plane.
Patent CA-1121519-A (CA)
Inventor: KURUMADA KATSUHIKO
IPC: H01L21/338
Filed: 1980-01-04
Granted: 1982-04-06
Abstract: Abstract of the Disclosure A field effect semiconductor device has a semi-insulator layer composed of a semiconductor material, with an N conductivity type active layer made of the same semiconductor material formed thereon acting as a channel.          Spaced apart cathode and anode electrodes are formed on the active layer with the cathode electrode being in ohmic contact with the active layer.  In use when a drive voltage is applied across the cathode and anode electrodes to vary the flow of electrons through the active layer and thus the output current, a P conductive region exists beneath the anode electrode which extends through the active layer towards or penetrating into the semiconductor layer to prevent the formation of a negatively charged space charge layer.
Patent CA-1145228-A (CA)
Inventor: HOLLINGSWORTH GARY R
IPC: E04C5/06
Filed: 1980-03-21
Granted: 1983-04-26
Abstract: ABSTRACT OF THE DISCLOSURE.     A three dimensional wire matrix structure is provided of low mass having outer wire sheets formed of longitudinal and transverse wires, the two sheets being interconnected and spaced from each other in generally mutually parallel relation by a third sheet, portions of the longitudinal wires of which are cranked at an obtuse angle.  Attachment of the outer sheets to the cranked intermediate sheet is achieved by welding the transverse wires of the sheets to adjacent longitudinal wires of an adjoining sheet.          In two arrangements having the longitudinal wires of the outer sheets on the outside of the structure, a substantially symetrical structure is obtained.  In a third embodiment an asymetrical structure is obtained, having the transverse wires of the outer sheets on the outside of the structure, and the cranked longi-tudinal wires of the inner sheet overlapping the longitudinal wires of one of the outer sheets, while being spaced from the other outer sheet by the transverse wires of the intermediate sheet by which attachment is made.  Joining pieces also are pro-vided comprising sections of fabricated sheet having transverse wires extending from both sides thereof, and cranked downwardly in an "S"-shape to provide interconnection for two abutting sections of matrix over which or beneath which, the joining pieces lie in edge-overlapping relation.  The step of gunniting or injecting concrete then completes the joining process.
Patent CA-1139268-A (CA)
Inventor: CHRISTINE WILLIAM C
IPC: F16K1/00
Filed: 1980-04-02
Granted: 1983-01-11
Abstract: IN THE UNITED STATES PATENT & TRADEMARK OFFICE                   VALVE           William C. Christine, Inventor ABSTRACT OF THE DISCLOSURE     A valve or tap is provided for use with a flexible film pouch or bag of the type that contains liquids or fluidic material, and wherein the valve includes a sealing flange or a fitment that is suitably secured or affixed to the outer surface of the film or bag, and a piercer is provided for selectively punctur-ing the bag or film when manual pressure is applied to a cap so that the material in the bag can be selectively dispensed from the bag.
Patent CA-1152374-A (CA)
Title: Compactor
Inventor: BERRANGE AUBREY R
IPC: E02D3/026
Filed: 1980-04-09
Granted: 1983-08-23
Abstract: ABSTRACT  OF  DISCLOSURE   A compactor which includes two laterally spaced impact rollers on an axle which constrains the rollers to rotate in synchronism.   The axle includes a first component which transmits bending moments, and a second component which transfers torsional forces, between the rollers.            The spaced impact rollers make it possible to compact embankment edges and increase the stability of the compactor.
Patent CA-1138209-A (CA)
Inventor: THEURER JOSEF
IPC: E01B31/15
Filed: 1980-04-29
Granted: 1982-12-28
Abstract: Abstract of the Disclosure A mobile rail contouring machine is arranged for continuously milling such running surface irregulari-ties as ripples, corrugations and overflow metal from rail heads during the continuous movement of the machine along a railroad track.  The machine comprises a frame, a rail contouring tool mounting linked to the frame, guide rollers for vertically and laterally guiding the mounting without play along the sides and the running surface of the rail head of each rail and for pressing the mounting thereagainst, and a rail contouring tool head including a tool holder arranged on the mounting.          A rail contouring tool is mounted in the tool holder and the tool head is displaceable with respect to the mounting in directions extending parallel and perpen-dicularly to the track.
Patent CA-1134642-A (CA)
Inventor: MEIGHEN EDWARD A
IPC: G01N21/76
Filed: 1980-06-23
Granted: 1982-11-02
Abstract: ABSTRACT         Insect pheromone long chain aldehydes are assayed in liquid samples, down to extremely small quantities, by a bio-luminescent technique.  A sample of reduced flavine mononucleo-tide and bacterial luciferase enzyme is treated with hydroxyl-amine, to scavenge out background aldehyde, and is then reacted with the aldehyde containing liquid sample for assay, in the presence of water and oxygen, to cause oxidation of the reduced flavine mononucleotide, with emission of light.  By determination of the maximum light intensity and optionally the decay curve of the emitted light, the amounts of aldehyde in the liquid sample can be accurately assayed, and information can be obtained concerning the chemical identity of the alde-hyde.  The process is useful in the monitoring of atmospheric aldehyde concentrations, in association with insect pheromone traps and matins disruption by pheromones.
Patent CA-1146662-A (CA)
Title: Circuit for processing the signals received  by a mosaic of ultrasonic transducers in  b-mode echography
Inventor: AUPHAN MICHEL J
IPC: H04R17/00
Filed: 1980-06-26
Granted: 1983-05-17
Abstract: PHF 79.545                 9                     4.4.1980 ABSTRACT: Circuit for processing the signals received by a mosaic of ultrasonic transducers in B-mode echography.            A processing circuit is connected to the output of a mosaic which consists of n first electrodes on a principal surface of a TGS plate and of 2p second electrodes on the other principal surface thereof. The circuit is constructed so that the output connections of the second electrodes are regrouped in p resultant connections which are connected, via p paths which each comprise an amplifier and a variable delay line,  to the inputs of a first adder whose output is connected, via a network of (q-1) delay lines having a given delay time, to the inputs of q parallel variable delay lines which are connected in parallel and which are connected themselves, via  their output, to the q  inputs of a second adder. The delay times thus realized are controlled so that a first ultrasonic lens and a second ultrasonic lens are successively formed.
Patent CA-1181157-A (CA)
Inventor: ALESSIO LORENZO E
IPC: B24B55/00
Filed: 1980-06-26
Granted: 1985-01-15
Abstract: ABSTRACT OF THE DISCLOSURE          Disclosed is an overspeed protective apparatus for an electric motor having pairs of stator windings normally connected in parallel, the apparatus having an actuating mechanism respon-sive to an overspeed condition of the motor and an electrical switching assembly normally connecting the stator windings in parallel but adapted upon actuation by the actuating mechanism to interrupt the parallel connection and connect pairs of wind-ings in series.
Patent CA-1126932-A (CA)
Title: Low temperature convertor and feedline  arrangement
Inventor: PALM JOHN W
IPC: C01B17/00
Filed: 1980-08-13
Granted: 1982-07-06
Abstract: ABSTRACT OF THE DISCLOSURE An improved convertor for the reaction of hydrogen sulfide and sulfur dioxide to form elemental sulfur at the sulfur dew point temperature of the gas involving a gas inlet means in the upper portion of the convertor above the catalyst which allows the gaseous portion of a Claus plant tail gas stream to enter the sulfur convertor and flow uniformly downward through the catalyst bed while simultaneously removing liquid elemental sulfur to prevent it from coming in contact with the catalyst bed.
Patent CA-1154931-A (CA)
Inventor: PERRELLA GUIDO
IPC: B22D17/20
Filed: 1980-10-16
Granted: 1983-10-11
Abstract: GAS VENT ACCESSORY FOR DIE CASTING MACHINE          Abstract of the Disclosure A device is disclosed for attachment to, or integral incorporation with, mold or die cavities of a die casting machine, for venting the cavity to allow gas to escape therefrom when it is being filled with zinc or the like.  The body of the device includes a passageway providing communication between the die cavity and the atmosphere.  A movable member is incorporated in the device for closing the passage after the gas has escaped and actuated by arrival of zinc in the passageway.
Patent CA-1158121-A (CA)
Inventor: LANGFORD COOPER
IPC: F24D11/00
Filed: 1980-11-13
Granted: 1983-12-06
Abstract: ABSTRACT OF THE DISCLOSURE          An improvement is provided in a heat storage system based on gas adsorption for chemical potential storage of energy (CES) in a so-called "heat battery".  The present invention uses a dessicant, e.g. a zeolite, and a means of drying out, or charging, the system by the use of off-peak electric power releasing.  The heat is then released as required during periods of peak electric power by the reintroduction of moisture, i.e. in effect releasing the stored heat of vaporization.  In one embodi-ment, the dessicant heat storage system is in the form of a furnace adapted to store heat, comprising: (a) an air inlet; (b) an air outlet; (c) an air-flow channel, connecting the air inlet to the air outlet;  (d) a bed of adsorbent energy storage dessicant material in the airflow channel, all air-flow in the channel being directed through the bed, the bed being in an enclosure having a particular structure so that the air passes in a primary direct unencumbered flow avoiding contact with a major amount of the dessicant, and through a secondary permeating flow through the dessicant material, (e) air heating means, positioned upstream of the bed of adsorbent energy storage dessicant material; (f) air dehumidifying means, positioned down-stream of the bed of adsorbent energy storage material; and (g) means to control the quantity of airflow through the airflow channel.  In this way air from a building containing the furnace is humidified by the air humidifying means and/or by the ambient release of moisture in the building and is blown through the adsorbent energy storage dessicant material.  That material thus absorbs the moisture in the air thereby to dehumidify that air and to release stored energy in the form of heat with the absorption of the moisture.
Patent CA-1138003-A (CA)
Inventor: DODSON VANCE H
IPC: C04B24/12
Filed: 1980-11-17
Granted: 1982-12-21
Abstract: Case 2643                      STRENGTH ENHANCING ADMIXTURE                            FOR CONCRETE COMPOSITIONS     Abstract of the Disclosure An admixture for Portland cement compositions and particularly Portland cement concrete compositions which contain pozzolans such as fly ash and blast furnace slag is described which is a mixture containing at least three specified chemical ingredients. The admixture improves the strength and other properties of the compositions.
Patent CA-1157658-A (CA)
Title: Procede de soufflage mixte pour l'affinage des metaux   au convertisseur
Inventor: LEROY PIERRE
IPC: C21C5/35
Filed: 1980-12-23
Granted: 1983-11-29
Abstract: La présente invention concerne un procédé d'introduction de gaz d'affinage et de gaz de brassage dans des convertisseurs d'affinage des métaux, et plus spécialement dans des convertisseurs d'acièrie. A cet effet, la présente invention a pour objet un procédé de soufflage de gaz oxydants, et notamment d'oxygène pur, pour l'affinage des métaux, et plus spécialement pour l'affinage de la fonte en acier, dans un convertisseur, au moyen d'une part d'une lance soufflant de haut en bas, et d'autre part de tuyères protégées soufflant, verticalemnt ou obliquement, de bas en haut, caractérisé à la fois en ce que la quantité d'oxygène soufflée de bas en haut par les tuyères est comprise entre 3 % et 25 % de la quantité totale d'oxygène nécessaire à l'affinage du bain métallique, en ce que cet oxygène est soufflé de bas en haut à débit pratiquement constant ou à débit décroissant, c'est à dire à débit non croissant, en ce qu'on peut ajouter à cet oxygène soufflé de bas en haut un gaz de brassage, neutre ou oxydant,dont le débit est variable suivant les diverses phases du soufflage et peut même être nul à certains moments, et en ce que les jets d'oxygène soufflé de bas en haut, mélangé ou non avec un gaz de brassage, ont un diamètre au plus égal à 18 millimètres, et de préférence au plus égal à 12 millimètres, ce diamètre des jets étant considéré à la sortie des tuyères.
Patent CA-1156633-A (CA)
Inventor: ALIX MAURICE A J
IPC: B60R22/12
Filed: 1981-01-09
Granted: 1983-11-08
Abstract: IN THE   C A N A D I A N  PATENT  AND TRADEMARK OFFICE                                            . . .            PATENT APPLICATION  .     entitled: Tension stop for safety belt of the inertia reel type in the name of: Maurice Alain Jean ALIX     ABSTRACT OF THE DISCLOSURE               The present invention relates to accessories for safety belts in the form of a tension stop which comprises a support piece defining a passage for a belt, as well as a blocking piece mobile with respect to the support piece and adapted to occupy two positions in which, respectively, it frees the passage or it projects locally therein to tighten the belt. The invention is applicable  to safety belts for auto-mobile vehicles.
Patent CA-1149795-A (CA)
Inventor: MIALE JOSEPH N
IPC: B01J29/70
Filed: 1981-02-17
Granted: 1983-07-12
Abstract: ABSTRACT     Super active catalyst of high hydrocarbon conversion activity prepared by contacting crystalline zeolite materials of silica/alumina mole ratios greater than 7 and having a constraint index between 1/2 and 12 with steam followed by base exchange of the resultant steamed product with an ammonium salt.
Patent CA-1177881-A (CA)
Inventor: SPANN ROBERT J
IPC: H02P25/02
Filed: 1981-03-12
Granted: 1984-11-13
Abstract: POWER FACTOR MOTOR CONTROLLER                     ABSTRACT OF THE DISCLOSURE The  power factor for an AC induction motor (34) is controlled  by selectively controlling the firing angle delay of a gate signal to a triac (36) during the cycle of the power source (32). Source voltage zero crossing (66) is sensed and a plurality of consecutively sequenced discreet windows (94, 96, 98, 100) are initiated. If the current zero crossing (68) occurs in the first window (94), then a sudden load on the motor (34) is indicated, and any delay in the firing angle of the triac (36) is substantially eliminated. This enables conduction of the triac (36) during substantially the entire cycle of the source voltage (60), thus providing instantaneous full power to the motor (34). If the current zero crossing (68) occurs in the second window (96), then the power factor is too great, and more power is needed at the motor (34). The gate firing angle is reduced, whereby the triac (36) will conduct for a longer cycle portion and hence deliver more power to the motor (34). If the current zero crossing (68) occurs in the third window (98), then an optimum power factor is indicated and the gate firing angle is not affected. If current zero crossing (68) does not occur in any of the first (94), second (96) or third (98) windows, then it will occur somewhere in the fourth window (100) and too much power is getting to the motor (34). Upon termination of the third window (98) without zero crossing (68) of the current, the gate firing angle delay is increased so that the triac (36) will be ON for a shorter portion of the cycle, and hence less power is delivered to the motor (34).
Patent CA-1154524-A (CA)
Inventor: HOTTA KOUICHI
IPC: H05B6/80
Filed: 1981-04-27
Granted: 1983-09-27
Abstract: ABSTRACT OF THE DISCLOSURE         In a foodstuffs heating apparatus wherein a plurality of different heating function modes are selecti-vely effected and heating temperature and heating time are settable, when an oven heating function is selected from the plurality of function modes by a selected cooking card, the function of selector switches adapted to select heating function modes other than the oven heating function may be changed from the heating function mode selection to the heating temperature setting, so that the setting of heating temperature may automatically be effected by utilizing the cooking card.