baber/WOPTO huggingface dataset:
Patent CA-1120538-A (CA)
Inventor: KOS JOSEPH M
IPC: F03D9/00
Filed: 1979-06-27
Granted: 1982-03-23
Abstract: U. S. Ser. No. 934,65 MULTI MODE CONTROL SYSTEM FOR WIND TURBINES                ABSTRACT OF THE DISCLOSURE    A multi-mode electronic wind turbine control system establishes a reference blade angle for a two-bladed, horizontal axis, variable pitch wind turbine rotor, the blade angle being regulated by a hydraulic pitch change mechanism.  The rotor, via appropriate shafts and a gear-box, is coupled to a synchronous generator to produce electrical energy which is fed to a power utility grid.    The control system provides closed loop pitch control for rotor acceleration rate during start-up, for rotor de-celeration rate during shutdown, for speed control when the synchronous generator is off-line, and for power con-trol when the synchronous generator is on-line.  A single control integrator is used for all closed loop operating modes, with a rate limiter circuit in front of the control integrator to prevent integrator overtravel.  The inte-grator has maximum and minimum blade angle stops, the minimum stop being variable as a function of rotor speed and wind speed.  When on-line, power control is provided by a unique shaft torque control using proportional plus integral plus derivative controls in combination.
Patent CA-1130415-A (CA)
Title: Fuel injection control apparatus for internal  combustion engine
Inventor: HOSHI YOSHIKAZU
IPC: F02D41/00
Filed: 1979-07-11
Granted: 1982-08-24
Abstract: ABSTRACT OF THE DISCLOSURE         In an internal combustion engine having a plurality of cylinders and provided with a fuel supply system of a single point injection type, a fuel supply control apparatus for controlling at least one of operation initiating timing and operating duration of a fuel injection valve for at least one of the cylinders independently from the other cylinders, thereby to optimize distribution of fuel supply to each of the cylinders.
Patent CA-1135169-A (CA)
Inventor: SCHULZE STEPHEN R
IPC: B32B27/34
Filed: 1979-08-14
Granted: 1982-11-09
Abstract: ABSTRACT               IMPROVED POLYAMIDE LAMINATES Disclosed are improved multi-layered laminates having at least one layer of a polyamide such as poly-epsilon-caprolactam containing an excess of terminal amine groups and at least one layer, opposing the polyamide layer, containing a polymer having pendent carboxylic acid groups, their salts carbonates, or acid anhydrides.
Patent CA-1114264-A (CA)
Inventor: BENJAMIN BENJAMIN C
IPC: F02M69/54
Filed: 1979-08-14
Granted: 1981-12-15
Abstract: ABSTRACT OF THE DISCLOSURE         A pressure regulator including a valve assembly in which a spherical valve closure element has a flat closure portion for engagement with an annular valve seat and the spherical element permits rotation and accurate alignment of the closure surface with the seat to avoid leakage.
Patent CA-1125954-A (CA)
Title: Compositions of vermiculite lamellae and solid  particulate materials
Inventor: BALLARD DENIS G H
IPC: C04B14/20
Filed: 1979-08-17
Granted: 1982-06-22
Abstract: ABSTRACT            A composition is provided comprising vermiculite lamellae (delaminated vermiculite) and one or more solid particulate additive materials which have a basic reaction in water, especially magnesium oxide.  These particulate additives improve the physical properties of vermiculite articles such as, for example, cast sheets or rigid foams especially compressive strength and stability to water. While prior art cast vermiculite articles possess a degree of structural integrity, articles made with the vermiculate lamellae of the present invention demonstrate superior physical properties and physical strength.
Patent CA-1135288-A (CA)
Title: Liant hydraulique
Inventor: COUTURIER JEAN
IPC: C04B18/04
Filed: 1979-09-19
Granted: 1982-11-09
Abstract: Le nouveau liant est constitué essentiellement par un mélange: a) de résidus de traitement de minerais riches en silico-aluminate de sodium et en oxydes de fer, comme par exemple les boues rouges rejetées après fabrication de l'alumine à partir de bauxite; et b) de chaux libre ou produit en renfermant, tel que notamment des cendres volantes sulfocalciques de centrale thermique contenant de la chaux libre. On peut aussi ajouter au mélange un agent activant de prise, du laitier granulé métallurgique ou sidérurgique et, si désiré, des matériaux de remplissage constitués eux-mêmes par des résidus comme par exemple des boues de papeterie. Application du liant à la fabrication de matériaux de constructions, à la réalisation de chaussées, à la stabilisation de sols et usages analogues.
Patent CA-1129772-A (CA)
Inventor: TAKRURI HARUN
IPC: A61K47/12
Filed: 1979-10-17
Granted: 1982-08-17
Abstract: Abstract A pharmaceutical formulation comprising per ml. from 1 to 100 mg. of the active ingredient erythromycin and the excipients, ethanol, sufficient non-toxic acid to give a pH in the range of 8-10 after dilution with water, and propylene glycol enough to bring the volume to 1 ml.  The process for its preparation is described.  The formulation is effective in the treatment of acne and is stable.
Patent CA-1134031-A (CA)
Inventor: DOKUS EDWIN A
IPC: G11B15/46
Filed: 1979-10-18
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE     An improved control is provided for the tape transport motor of a battery-powered, slow-speed tape recorder typically used for producing magnetic recordings of an ambulatory patient.          The recorder's tape transport means is driven by a synchronous AC motor powered from a DC (battery) supply.  That DC supply, during normal operation, is voltage regulated to provide desired speed stability.  That DC supply is inverted into a square wave DC current in a manner effectively providing a regulated square wave AC at twice the regulated DC voltage.  Phase-shifting means connected to the inverter provide a phase-shifted square wave source necessary for the two-phase AC synchronous motor.  In an improved mode of control, means are additionally provided for selectively supplying current at full battery voltage, square wave inverted and phase-shifted to the AC synchronous motor in lieu of the regulated supply voltage to provide high torque operation for selected periods of time as during "start-up" or "warm-up".
Patent CA-1143089-A (CA)
Inventor: PETERSEN HARRO
IPC: C08L67/00
Filed: 1979-10-26
Granted: 1983-03-15
Abstract: O.Z. 0050/033,497 Abstract of the Disclosure:   Co-condensates are pre-pared by condensing from 0.8 to 2.0 moles of butyralde-hyde with 1 mole of a phenol at from 80 to 220°C with the addition, before, during or after the condensation, of from 5 to 50% by weight, based on the mixture of phenol and butyraldehyde, of one or more thermoplastics containing functional groups, which reacts with phenol, butyraldehyde or the phenol-butyraldehyde resin under the condensation conditions.     The co-condensates are used as hot-melt adhesives and as binders for nonwovens.
Patent CA-1135944-A (CA)
Inventor: LEWIS JOHN W R
IPC: A44B11/25
Filed: 1979-11-16
Granted: 1982-11-23
Abstract: 1.          IMPROVEMENTS IN OR RELATING TO A BUCKLE ABSTRACT     A seat belt buckle has a latch plate provided with a locking tooth which is biassed into engagement with an aperture in a locking plat, and is provided with a slider operated lever to move the latch plate to release the locking plate.  A protrusion is provided on the slider which lies adjacent a portion of the latch plate when in the locking position to prevent the latch plate being disengaged from the locking plate even if the device is subjected to a sudden shock.
Patent CA-1140386-A (CA)
Inventor: BOISMENU LUCIEN WOLSELEY AVENU
IPC: D06F58/20
Filed: 1979-11-23
Granted: 1983-02-01
Abstract: ABSTRACT OF THE DISCLOSURE           A damper structure for a clothes dryer vent is disclosed.         The damper structure comprises a support member adapted to be inserted inside the dryer vent adjacent the inside wall of a house, and a damper plate mounted on the support member, so as to form a closed air space between the damper plate and the regular closure damper of the dryer vent for minimizing heat losses through the dryer vent.         In order to fit a dryer vent of circular cross-section, the damper structure comprises a central damper element hinged at the top of the support structure and two lateral damper elements hinged one on each side of the central damper element for allowing full opening of the damper plate into the tubular dryer vent.
Patent CA-1156797-A (CA)
Inventor: CHATTHA MOHINDER S
IPC: C08G59/40
Filed: 1979-12-19
Granted: 1983-11-08
Abstract: ABSTRACT OF THE DISCLOSURE         An improved thermosetting coating composition of the type  comprising  a  film  forming  component and  an  amino compound,  wherein  the composition cures by  reaction between the aminc  compound and hydroxy functionality present on  the film forming material.  The improvement comprises including in the  composition  a  catalyst  comprising  a  hydroxy  functional acrylic organophosphate ester.  Preferred coating compositions within the scope of the invention are fast curing, high solids coating compositions adapted for use as automotive topcoats.
Patent CA-1116098-A (CA)
Inventor: CONNOLLY JAMES D
IPC: B01D35/28
Filed: 1979-12-28
Granted: 1982-01-12
Abstract: SLURRY SCREEN                  Abstract of the Disclosure A self-cleaning screen for separating fibrous and other solids from flowing slurries, the screen having a flow surface formed by parallel laterally spaced screen wires disposed perpen-dicular to the flow direction of the slurry, each screen wire having a flat rearwardly declining top bounded forwardly by an arcuately convex leading edge and rearwardly by a sharp trailing edge and downwardly converging flat sides, the screen inducing a ripple motion in the slurry flowing across the screen wires and directing solids over and liquid downwardly between the wires.
Patent CA-1136250-A (CA)
Inventor: PRATT HENRY L
IPC: H01S3/03
Filed: 1980-01-22
Granted: 1982-11-23
Abstract: Abstract of the Disclosure A miniature air actuated vacuum transducer is connected on the down-stream side of a laser and is disposed for creating a vacuum suction for exhausting gas from a flowing gas laser system.  Specifically, a compact flow-ing laser is disclosed in combination with a specific pulp or vacuum trans-ducer.  A small high pressure gas cylinder is provided such that applicant's laser can operate in a miniaturized environment.
Patent CA-1137517-A (CA)
Title: Oxidatively coupled hydroxyaromatic compounds and fuels and lubricants containing them
Inventor: COHEN JEROME M
IPC: C10L1/18
Filed: 1980-02-27
Granted: 1982-12-14
Abstract: Mixtures of (A) hydroxyaromatic compounds (e.g., phenols) having no aliphatic substituents of more than 4 carbon atoms and (B) hydroxyaromatic compounds having at least one aliphatic substituent with at least about 12 carbon atoms may be oxidatively coupled to yield products useful as lubricant and fuel additives.
Patent CA-1104372-A (CA)
Inventor: MOHLER DAVID B
IPC: G01L1/22
Filed: 1980-03-31
Granted: 1981-07-07
Abstract: MATERIAL TESTING DEVICE ABSTRACT OF THE DISCLOSURE A testing device for applying a force to a material test sample includes a test fixture for engaging the test sample and a solenoid, operatively coupled to the test fixture, for applying a predetermined force to the test sample in response to a solenoid control signal.  A strain gauge is mounted on the test fixture and provides an elec-trical output indicative of the force applied to the test sample.  A force setting circuit provides an electrical out-put indicative of the predetermined force which is to be applied to the test sample.  A solenoid control circuit is responsive to the output from the strain gauge means and to the output of the force setting means and provides a con-trol signal to the solenoid such that the predetermined force may be applied to the test sample.  The force setting cir-cuit provides an electrical output having an adjustable rate of increase and an adjustable maximum level.  A sample cir-cuit monitors the output of the strain gauge to store the peak force applied to the test sample.  The testing device also includes a circuit for providing a visual indication of whether the test sample has withstood an adjustable force level.
Patent CA-1150374-A (CA)
Inventor: OHSAWA MITSUO
IPC: H01G9/04
Filed: 1980-04-01
Granted: 1983-07-19
Abstract: ABSTRACT OF THE DISCLOSURE         A tantalum condenser includes a metallic electrode cap; a tantalum material fitted to the metallic electrode cap; a cylindrical metallic terminal facing to the metallic elec-trode cap; a tantalum lead projected from one end surface of the tantalum material; and a projection formed as one piece with one end surface of the metallic terminal  and welded to the tantalum lead, wherein a part of the metallic terminal cap, the tantalum material, a part of the metallic terminal  the tantalum lead and the projection are molded with synthetic resin.
Patent CA-1156952-A (CA)
Inventor: KESSICK MICHAEL A
IPC: C10G9/00
Filed: 1980-06-06
Granted: 1983-11-15
Abstract: ABSTRACT OF THE DISCLOSURE The sulphur emissive capability, on combustion, of coke which is formed during upgrading of sulphur-containing heavy crude oils, including oil sands bitumen, and residua, is decreased by the addition of calcium carbonate, preferably in the form of limestone, to the heavy crude oil prior to coking.  The presence of the limestone leads to an increased yield of liquid distillates from the coking process under preferred coking conditions.  Ash remaining after combustion of the coke may be leached to recover nickel and vanadium values therefrom.
Patent CA-1109613-A (CA)
Inventor: MAGEE S JIM
IPC: E01H1/10
Filed: 1980-06-09
Granted: 1981-09-29
Abstract: SURFACE CLEANING APPARATUS ABSTRACT OF THE DISCLOSURE          An improved apparatus and method for cleaning roofs and other surfaces having both coarse and fine compacted particulate matter to be cleaned.  A spray of water under pressure of 1,000 to 2,000 psi is applied from the inside of an open bottommed vacuum chamber toward the surface to be cleaned along a line at an angle across the chamber, to dislodge fine and/or coarse residue from the surface.  A second spray is immediately applied following the first before the residue resettles on the surface, while at the same time a vacuum is applied to the chamber to remove the deflected spray and residue.
Patent CA-1146095-A (CA)
Inventor: SAVAGE DAVID W
IPC: B01D53/26
Filed: 1980-09-04
Granted: 1983-05-10
Abstract: ABSTRACT        PROCESS FOR THE SEPARATION OF CONTAMINANTS FROM FEED STREAMS  USING MAGNETIC BEDS            The invention relates to the removal of con-taminants from fluid streams in a continuous process by adsorption on solid adsorbents, particularly small particle size adsorbents, which also include a mag-netizable component, wherein the adsorption and desorp-tion are carried out at substantially the same pressure. The adsorbent particles and magnetizable component which flow or move through the vessel are stabilized against fluid by-passing and solids back-mixing and recirculation generally associated with fluidized beds (except for the flow or movement of the solids through the contacting vessels) during adsorption and desorp-tion by the use of an applied magnetic field.
Patent CA-1143750-A (CA)
Inventor: LEACH BRUCE E
IPC: C07C39/07
Filed: 1980-09-26
Granted: 1983-03-29
Abstract: PURIFICATION OF 2,6-XYLENOL STREAMS               Abstract of the Disclosure 2,6-xylenol admixed with meta,para-cresol is reacted with methanol in a contact with a titanium/SO4/ magnesium oxide catalyst to yield a product stream which can be readily distilled to give 2,6-xylenol in high purity.  The particular catalyst used allows low loss of 2,6-xylenol during the reactions and low amounts of side products obtained.
Patent CA-1154613-A (CA)
Inventor: KREFT KEITH A
IPC: G01N33/00
Filed: 1981-01-28
Granted: 1983-10-04
Abstract: ABSTRACT OF THE DISCLOSURE     A processing unit for normalizing the output data of a gas analyzer in view of zero adjustment data and gain adjustment data formulated by the processing unit controlling air input and span reference simulation of a reference gas.  A voltage reference gen-erator is manually variable for calibrating the system while passing a known reference gas through the analyzer, in order to provide a scaling factor for use during output data adjustment.  A hold switch is manually actuable by the operator for storing in memory the value of a gas analyzation voltage for permitting adjustment to the output data after the gas is removed from the cell of the analyzer.
Patent CA-1138665-A (CA)
Inventor: LIVESAY J D
IPC: F25B43/00
Filed: 1981-02-02
Granted: 1983-01-04
Abstract: D-3,707 LIQUID ACCUMULATOR          Abstract of the Disclosure A liquid accumulator for air conditioning systems and the like having a hollow porous desiccant container which is adapted to be sealingly connected in the bottom of the accumulator's casing prior to permanent assembly thereof and wherein the desiccant container accommodates the accumulator's normal tube assembly and remains serviceable through the bottom of the casing for the adding and emptying of desiccant.
Patent CA-1149890-A (CA)
Inventor: LEE PATRICK S
IPC: H03G3/20
Filed: 1981-02-05
Granted: 1983-07-12
Abstract: ABSTRACT     An automatic gain control circuit comprising a gain-controlled amplifier for receiving a variable amplitude, pulse-type input signal to produce a substan-tially constant amplitude, pulse-type output signal which is applied to a feedback circuit for comparison with a predetermined reference voltage to generate n control voltage to set the gain of the amplifier. A voltage limiter included in the feedback circuit clips the pulse peaks of the output signal whenever the peaks exceed a predetermined amplitude so that the gain of the amplifier is reduced in a prescribed manner to preclude output signal dropout. A peak detector and a filter included in the feedback circuit are capable of operating in fast and slow modes. When operating in the fast mode, the peak detector responds essentially to each pulse peak of the output signal and the filter has a wide bandwidth so that the automatic gain control circuit operates with a prescribed fast time response. When operating in the slow mode, the peak detector operates to increase the gain of the amplifier slowly in order to limit output signal overshoot and preclude output signal dropout if the input signal reappears after an absence for some period. The filter, when operating in the slow mode, has a narrow bandwidth so that the automatic gain control circuit operates with a time response substantially slower than the fast time response. A controller circuit produces, in response to the output signal, a controller signal which causes fast mode operation of the peak detector and filter whenever the output signal is present and slow mode operation thereof whenever the output signal is absent for a predetermined time period.
Patent CA-1179234-A (CA)
Inventor: SCHEFER ELI I
IPC: A46B3/18
Filed: 1981-02-23
Granted: 1984-12-11
Abstract: ABSTRACT OF THE DISCLOSURE         An eyelash cosmetic applicator is disclosed.  The applicator consists of a rod having a handle at one end of the rod, and a tubular shroud having at least one slit extending longitudinally at least part way the shroud.  A brush having at least one row of bristles is disposed in the shroud with the bristles extending through the slit.  The shroud having the brush disposed therein being attached to the other end of the rod.
Patent CA-1168437-A (CA)
Title: Process and device for the contact free measurement  of a dimension
Inventor: STUDER URS PETER
IPC: G01B11/02
Filed: 1981-03-18
Granted: 1984-06-05
Abstract: ABSTRACT        In a process and apparatus for measuring the dimension of at least one object without physical contact therewith, a fine light beam, for example a laser beam, is deflected across the object in the direction of the dimension to be measured and the instants in time at which the light beam impinges upon and moves off said object are determined and stored as measurement data.  These data are then evaluated, together with reference data relating to the speed of deflection of the light beam, to provide a measure of the dimension.  In one example a computerised system operates in a continuous cycle wherein the measurement data are recorded and stored in a first memory during a first cycle, the data is transferred to a second memory in the direct memory access mode, and then during the next circle the data in the second memory is processed whilst new data is being read into the first memory.  A chopper circuit linked to the means for deflection of the light beam, for example a rotary mirror, serves both to control the operating cycle and to provide the reference data.
Patent CA-1188077-A (CA)
Inventor: YOSHIDA HIROSHI
IPC: D06B23/16
Filed: 1981-04-07
Granted: 1985-06-04
Abstract: ABSTRACT OF THE DISCLOSURE      A separable slide fastener has a pair of warp-knit stringer tapes each with a series of openings for easy attachment to a knit fabric.  Each of the stringer tapes includes a reinforce-ment film bonded to a lower end portion thereof and having a recess which allows some of the tape openings to be exposed for use in attachment to the knit fabric.  The recess may be covered with a thin layer penetratable by knitting needles.  A separable bottom end stop is injection-molded on the reinforcement films bonded to the stringer tapes.   The advance in the art is that the separable slide fastener of the present invention is less susceptible to becoming puckered or wavy.  When attached to a knit fabric, the fastener is relatively free from being adversely effected by the stretching of the knit fabric.
Patent CA-1148544-A (CA)
Inventor: KLEEMANNN AXEL
IPC: C07D253/075
Filed: 1981-05-28
Granted: 1983-06-21
Abstract: ABSTRACT OF THE DISCLOSURE 4-Amino-6-tert.butyl-3-mercapto-1,2,4-triazin-5-one having the formula   (I) is produced by reacting pivaloyl cyanide and isobutene in the presence of acetic acid and sulphuric acid, hydrolyzing the reaction mixture in the presence of water and reacting the formed trimethyl pyroracemic acid with thiocarbohydrizide.  The triazinone is an important intermediate product in the synthesis of the known herbicide 4-amino-6-tert.butyl-3-methyl-mercapto-1,2,4-triazin-5-one.
Patent CA-1155801-A (CA)
Inventor: KRESPAN CARL G
IPC: C08J5/22
Filed: 1981-06-03
Granted: 1983-10-25
Abstract: ABSTRACT OF THE DISCLOSURE           The reaction of a polyfluorocarbonyl compound such as a polyfluoroketone or polyfluorocarboxylic acid fluoride with fluoride ion and a polyfluoroallyl chloride or fluorosulfate produces a polyfluoroallyloxy compound, e.g., CF2=CFCF2OCF2CF2SO2F.  The polyfluoroallyloxy com pounds copolymerize with ethylenically unsaturated monomers such as tetrafluoroethylene, chlorotrifluoroethylene or vinylidene fluoride to form polymers which are moldable, and in some cases electrically conducting or are water-wettable and dyeable.
Patent CA-1170710-A (CA)
Inventor: COWELL DAVID
IPC: H05G1/54
Filed: 1981-06-15
Granted: 1984-07-10
Abstract: Abstract A circuit protects a high voltage supply for x-ray tubes from the damaging effects of a tube flashover or the like.  The circuit monitors line current, and high voltage and reacts to an increase in line current occurring with a corresponding drop in high voltage to turn off the high voltage.
Patent CA-1182692-A (CA)
Inventor: ATHEY GRAHAM
IPC: A61F13/49
Filed: 1981-06-22
Granted: 1985-02-19
Abstract: ABSTRACT         A coverstock fabric comprising an area-bonded non-woven fabric containing a plurality of homofilament staple fibres and a plurality of hetexofilament staple fibres, the fabric having a soak through less than 3.5 seconds, a re-wet moisture less than 0.2 grams and a K factor less than 0.6 and preferably less than 0.4.