baber/WOPTO huggingface dataset:
Patent CA-1050125-A (CA)
Inventor: FOX DAVID A
IPC: H02J3/08
Filed: 1975-03-17
Granted: 1979-03-06
Abstract: ABSTRACT OF THE DISCLOSURE           A synchronous demodulator is provided for receiving signals including one that is subject to variation in wave-form and a predetermined reference signal having a known waveform from which signals is produced a demodulated output representing the relationship between the first and second signals with respect to their phase and amplitude.  The apparatus includes means such as a signal transformer with a center-tapped secondary to produce two phase displaced signals from the first signal which are then applied by means such as a gate controlled two-channel input amplifier to the input of an amplifier such as an operational amplifier from which the demodulated output is obtained.  Application to reactive load division between parallel AC generators is advantageous.
Patent CA-1046983-A (CA)
Inventor: RAHN HENRY W
IPC: C25B15/08
Filed: 1975-04-01
Granted: 1979-01-23
Abstract: Abstract Disclosed is a bipolar electrolyzer having a horizontal hydrogen channel separate from the catholyte chamber.  There are apertures between the horizontal hydrogen channel and the catholyte chamber to enable catho-lyte gas, i.e., hydrogen, with entrained cell liquor, to enter the channel. At one end of the channel is a gas disengaging chamber.  The gas disengaging chamber includes a catholyte gas deflector interposed between the outlet of the horizontal channel and the interior of the disengaging chamber, hydrogen recovery means, and catholyte liquor recovery means.  In the operation of an electrolytic cell as disclosed herein, catholyte gas, i.e., hydrogen gas with entrapped catholyte liquor, is removed from the catholyte chamber to the horizontal channel.  The catholyte gas is then transported through the horizontal channel to the outlet of the horizontal channel and into the disengaging chamber.  As the catholyte gas enters the disengaging chamber, its direction of flow is deflected while its linear velocity is reduced. The direction of flow of the gas is then reversed and the linear velocity reduced further, disengaging the catholyte liquor from the hydrogen.  Fi-nally, the hydrogen gas, substantially free of catholyte liquor, is recovered from the disengaging chamber.
Patent CA-1052634-A (CA)
Inventor: GROSS FRANK C
IPC: G03G15/08
Filed: 1975-04-07
Granted: 1979-04-17
Abstract: ABSTRACT OF THE DISCLOSURE           Disclosed is a method and apparatus for developing an electrostatic latent image on an electrophotographic film through use of a special developing chamber forming a passageway through which electrostatically charged toner particles are conducted to contact the film.  The chamber has an opening bordered by a mask against which the film is placed to form a seal, an inlet through which toner particles and drying air enter the chamber, and an outlet through which toner particles and drying air leave the chamber.  The apparatus further includes supply means for pro-viding toner particles to the chamber, toner flow-control means for permitting a predetermined quantity of toner particles to flow through the developing chamber at predetermined times, air supply means for supplying drying air to the inlet of the chamber, and vacuum means connected to the outlet of the chamber for drawing the toner particles and air through the chamber.  The vacuum means creates a sub-atmospheric pressure within the chamber to prevent leakage of toner particles from the chamber around the film.
Patent CA-1037397-A (CA)
Inventor: RICHARDS FRANK P
IPC: B65D3/14
Filed: 1975-05-21
Granted: 1978-08-29
Abstract: Abstract of the Disclosure A container is formed from a generally rectangular blank of paper-board or the like which is rolled to form a cylindrical or conically shaped side wall. A circular disc is secured to one end of the side wall to form an end closure. Leakage at the junction between the side wall means and the disc is eliminated by positioning a bead of sealant material at this junction.      Blanks employed to construct the container are also disclosed.
Patent CA-1039441-A (CA)
Inventor: CARSON WILLIAM F JR
IPC: C08K5/372
Filed: 1975-05-26
Granted: 1978-09-26
Abstract: THERMAL STABILIZATION OF ACRYLIC POLYMERS WITH       DI-TERTIARY-ALKYL DISULFIDES         ABSTRACT OF THE DISCLOSURE        Improved thermal stability of methyl methacrylate homopolymers and methyl methacrylate copolymers is achieved by adding to the polymer a small amount of di-tertiary-alkyl disulfide.  More efficient manufacture of molded and extruded articles of such polymers, at lower cost, is thereby achieved.
Patent CA-1044310-A (CA)
Inventor: KAPPENHAGEN GEORGE A
IPC: H05B41/392
Filed: 1975-06-09
Granted: 1978-12-12
Abstract: ABSTRACT OF THE DISCLOSURE An internally regulated lighting control apparatus (dimmer) responsive to an electrical demand signal to control the voltage supplied to a lamp load.  This apparatus uses an output synthesis circuit which generates a signal essentially proportional to and of the same waveshape as the voltage across the load, thus providing a feedback signal without a feedback transformer.
Patent CA-1042508-A (CA)
Inventor: GILMORE THOMAS P
IPC: G05F1/153
Filed: 1975-06-25
Granted: 1978-11-14
Abstract: STATIC CONTROL FOR STEP VOLTAGE REGULATOR                 ABSTRACT OF THE  DISCLOSURE         A static control for a step voltage regulator derives a lower bandwidth limit potential at the wiper of a bandwidth setting potentiometer connected across a reference voltage source and an upper bandwidth limit potential at the output of an inverter operational amplifier having inputs coupled to the wiper and to the reference voltage source.  First and second comparators respectively compare the upper and lower bandwidth limit potentials to a sample voltage proportional to the regulator output potential.  A timer includes a pulse generator for deriving pulses at power line frequency, a digital counter incremented by the pulses, a digital-to-analog network for deriving a unidirectional voltage proportional to the count stored in the counter, and a comparator for providing a timer output when the unidirectional voltage reaches a reference potential.  A logic gate normally disables the counter and in response to the output of either comparator to enable the counter and thus start the timer.  First and second trigger-able semiconductor switches respectively energize the raise and lower windings of the tap changer motor.  A latch has cross-connected first and second logic gates respectively controlled by the first and second comparators and each of which receives the timer output and firing pulses from a high frequency os-cillator and is enabled when the outputs from the corresponding comparator, the timer, and the oscillator occur simultaneously.          Firing circuits controlled by the first and second logic gates of the latch trigger the second and first semiconductor switches to thereby energize the raise and lower windings of the tap changer motor.
Patent CA-1038922-A (CA)
Inventor: HASKER JAN
IPC: H01J61/24
Filed: 1975-07-09
Granted: 1978-09-19
Abstract: ABSTRACT       A low-pressure gas discharge lamp in which thin-structured bodies permeable to the gas discharge, such as glass or metal wool are present in the discharge space for increasing the radiation output per unit volume.
Patent CA-1053323-A (CA)
Inventor: SIWERSSON OLLE L
IPC: H01M12/06
Filed: 1975-07-14
Granted: 1979-04-24
Abstract: GALVANIC PROCESS AND AN ANODE FOR CARRYING THE PROCESS INTO EFFECT.          Abstract of the Disclosure A galvanic primary cell in which complexing agents are supplied to the anode and/or the cathode to eliminate operation-inhibiting or passivating phase interfaces, such as a passivating coating on the anode or a heterogeneous supply of active material inhibiting the cathode reaction. More particularly, in an iron/air cell, complexing agents for iron are supplied to eliminate coatings on the Fe-anode, while complexing agents for oxygen are supplied to reversibly dissolve 02 at the cathode.
Patent CA-1076283-A (CA)
Inventor: DICKIE RAY A
IPC: C09D5/08
Filed: 1975-09-29
Granted: 1980-04-22
Abstract: ABSTRACT OF THE DISCLOSURE      Water-based paints contain about 500 to about 2500 parts by weight barium nitrite per million parts by weight paint formulation including water by excluding pigment.  The disclosure relates to their composition and method preparation.
Patent CA-1039790-A (CA)
Inventor: HELINSKI EDWARD F
IPC: H04N1/034
Filed: 1975-10-20
Granted: 1978-10-03
Abstract: METHOD AND APPARATUS FOR MERGING SATELLITES     IN AN INK JET PRINTING SYSTEM                      ABSTRACT OF THE DISCLOSURE          In an ink jet recorder, a ferrofluid ink is supplied under pressure to a nozzle to form a continuous ink jet stream.   The jet stream is sub-jected to two or more perturbation forces out-of-phase with each other causing the satellites and drops to fast merge.  Plural electromagnetic transducers are located at spaced locations along the stream and ener-gized to produce out-of-phase perturbations on the stream.  The spacing of the transducers is differentially related to spacing of varicosities or ink drops produced by first transducer.  The out-of-phase perturba-tions can also be obtained using an electromechanical transducer and electromagnetic transducers located out-of-phase or energized out-of-phase with each other.
Patent CA-1037311-A (CA)
Inventor: STEELMAN RONALD S
IPC: G03F7/34
Filed: 1975-10-28
Granted: 1978-08-29
Abstract: ABSTRACT         A presensitized light-sensitive sheet structure suitable for producing a dry transfer element, comprising a transparent substrate having a release coating thereon and overlying the release coating a photosensitive layer comprising a conventional photopolymerizable compound, an initiator therefor and a binder.  After light exposure to an original through the transparent substrate and de-velopment to remove unexposed portions, the remaining image portions have a greater adhesion for a receptor surface when applied thereto under pressure than the adhesion of the indicia to the transparent substrate under like pressure.
Patent CA-1061768-A (CA)
Inventor: PARTIN CLYDE
IPC: B01D46/30
Filed: 1975-11-24
Granted: 1979-09-04
Abstract: ABSTRACT OF THE DISCLOSURE             An improved process particularly adapted for cleaning dry particulate matter of a catalyst filter bed without requiring the removal screening and reinstating of such material forming the catalyst filter bed.  Basically, the process embodies the steps of arranging a screen over the top surface of the filter bed, subjecting the surface of the screen and filter bed to a vacuum to thereby pull impurities, such as dust and the like, from the filter bed and through the screen, advancing a rake device through the filter bed in a first direction of movement for loosening the impurities and for providing greater access thereto, subjecting the screen and filter bed to a vacuum thereby pulling additional impurities from the filter bed and through the screen, and for providing greater access to the impurities, again advancing the rake device through the filter bed in a second direction which is generally transverse to the first direction of movement of the rake device for loosening the impurities and for producing greater access thereto, and again subjecting the screen filter bed to a vacuum the thereby pull additional impurities from the filter bed and through the screen.
Patent CA-1047519-A (CA)
Inventor: CROSBY JOHN
IPC: C08G18/81
Filed: 1975-12-11
Granted: 1979-01-30
Abstract: ABSTRACT OF THE DISCLOSURE    A furoxan, especially one in which the furoxan ring is fused to a strained aliphatic ring system, is heated in the presence of sulphur dioxide to give an isocyanate.  The process enables furoxans, such as di-cyclopentadiene furoxan, which ring-open at temperatures <180°C to be converted into isocyanates.  In the absence of sulphur dioxide, may be difficult to control the reaction and, in some cases, no isocyanate is obtained.          Diisocyanates prepared by the process may be converted into polyurethanes by reaction with suitable hydroxylic compounds.
Patent CA-1064147-A (CA)
Inventor: MARSHALL RICHARD M
IPC: G01S7/285
Filed: 1976-01-08
Granted: 1979-10-09
Abstract: HIGH POWER LOW LOSS NONRESONANT FILTER SYSTEM   Abstract of the Disclosure A radar system using a resonant circuit pulsed generator such as a magnetron with a nonresonant filter using directional couplers to split the power output of the generator into two signal channels and to directionally recombine the channels after the channels have passed through different delay times, with the differential delay between the channels being selected to direct the desired frequency components of the generator to a first output port and undesired sidebands or other spurious signals of the generator to a second port.
Patent CA-1043860-A (CA)
Inventor: LANDAU MICHAEL B
IPC: F02C6/10
Filed: 1976-01-27
Granted: 1978-12-05
Abstract: PRESSURIZED FUEL CELL POWER PLANT WITH AIR BYPASS                 ABSTRACT OF THE DISCLOSURE     A power plant for producing electricity uses fuel cells run on pressurized air and pressurized fuel.  The air is compressed by compressor apparatus which is driven by waste energy in the form of hot pressurized gases produced in the power plant.  In one embodiment the compressor apparatus includes a turbine operably connected to a compressor for driving the same.  At part power, in order to maintain the pressure of the air being fed to the cells while reducing the amount of air fed to the cells, a portion of the com-pressed air is bypassed around the fuel cells, is increased in temperature using an auxiliary burner, and is delivered into the turbine to help drive the compressor.  By doing this the mass flow of air through the cells may be reduced without reducing the mass flow of gases into the turbine thereby maintaining the speed of the compressor at part power.
Patent CA-1062134-A (CA)
Inventor: CIACCIO LEONARD L
IPC: G01N33/18
Filed: 1976-04-20
Granted: 1979-09-11
Abstract: ABSTRACT        There is described herein a method and apparatus for determining the total consumption of dissolved oxygen in a liquid by organic materials contained therein in the presence of a bio-logical growth culture.  The invention includes providing a supply of liquid, preferably water, which is saturated with air.  A liquid sample containing the organic material is supplied to the air saturated liquid.  The combined mixture is then supplied, at a fixed volumetric rate, to a tube of predetermined length which contains the biological "culture".  The biological growth, utilizing the oxygen dissolved in the liquid mixture, reacts with the organic material contained therein resulting in certain synthesized materials and other oxidation products.  At the exit end of the tube oxygen detecting means is positioned which measures the oxygen contained in the liquid mixture after exposure to the biological growth.  This measurement when plotted against time gives an indi-cation of the total amount of oxygen consumed due to the assimilation of the organic material by the biological growth culture.         Alternately, the readout of the oxygen detecting means can be supplied directly to an integrating amplifier or similar device, to which a set of system parameters can be supplied as constants.  The output of such a device will represent the oxygen consumed.
Patent CA-1070711-A (CA)
Inventor: WUNDER FRIEDRICH
IPC: C07C31/18
Filed: 1976-04-30
Granted: 1980-01-29
Abstract: ABSTRACT  OF  THE  DISCLOSURE            PROCESS FOR PREPARING BUTANEDIOL-(1.4) Butanediol-(1.4) is prepared by hydrogenating maleic anhydride, maleic acid or mixtures thereof in one step in the presence of catalysts comprising simultaneously elements of subgroup VII or compounds thereof and elements of sub-group VIII or compounds thereof or mixtures of these elements and compounds.
Patent CA-1054672-A (CA)
Inventor: LUDWIG F
IPC: H01M10/39
Filed: 1976-05-11
Granted: 1979-05-15
Abstract: IMPROVED SECONDARY BATTERY OR CELL USING SULPHUR AND AN ALKALI METAL        AS REACTANTS                ABSTRACT OF THE DISCLOSURE  An improved secondary battery or cell of the type having (A) one or more anodic reaction zones containing a molten alkali metal reactant-anode in electrical contact with an external circuit, (B) one or more cathodic reac-tion zones containing (i) a cathodic reactant which, when the battery or cell is in the theoretically fully charged state, consists of sulfur and which, when the battery or cell is at least partially discharged, is selected from the group consisting of (a) a single phase composition comprising a molten polysulfide salt of said anodic reactant and (b) a two phase composition comprising molten sulfur and molten sulfur saturated polysulfide salts of said anodic reactant and (ii) an electrode of porous conductive material which is at least partially immersed in said cathodic reactant, and (C) a cation-permeable barrier to mass liquid transfer interposed between and in contact with said anodic and cathodic reac-tion zones, said porous, conductive material being in electrical contact with both said cation-permeable barrier and an external circuit.  The improvement comprises increasing the charge/discharge capacity of the battery or cell by including in said cathodic reactant controlled amounts of certain metals, alloys comprising such metals, salts of such metals and oxides of such metals.
Patent CA-1098635-A (CA)
Inventor: BOND HERBERT M
IPC: G02B1/04
Filed: 1976-06-29
Granted: 1981-03-31
Abstract: Abstract of the Disclosure The process of the preparation of production quantities of lens devices fabricated from synthetic resinous substances, normally referred to as "plastic lenses".  The process utilizes a molding formulation which enables re-usable mold cavities to be utilized, the formulation providing a proper balance between a number of processing parameters or variables, one of the primary parameters being the maintenance of a proper adherence or re-lease capability between the surface of the lens being fabricated and the surface of the mold cavity.  Specifically, it has been found that a silane selected from the group consisting of:         Vinyltrichlorosilane Vinyltriacetoxysilane gamma-Glycidoxypropyltriethoxysilane Vinyltriethoxysilane gamma-methacryloxypropyltrimethoxysilane beta (3,4-Epoxycylohexyl)-ethyltrimethoxysilane Methylvinyldichlorosilane Vinyl-tris (beta-methoxyethoxy) silane Vinyltrimethoxysilane gamma-Aminopropyltriethoxysilane N-beta-(aminoethyl)-gamma aminopropyltrimethoxysilane when incorporated in the molding formulation controls the parameters so as to provide for controllable release of the lens product from the mold.
Patent CA-1064418-A (CA)
Inventor: CASS ANN E
IPC: B21D31/00
Filed: 1976-07-13
Granted: 1979-10-16
Abstract: ABSTRACT OF THE DISCLOSURE           A composite end panel is adhesively bonded to the sidewall of a can or similar container with the end panel peri-phery overlying a portion of the sidewall outer surface. plastic band or hoop is placed on the sidewall, overlapping the edge of the end panel, and shrunk in place through the ap-plication of heat.  The band seals the cut edge and presents wicking while insuring that the end panel is retained in posi-tion.  A fillet of sealant way be applied to the inside of the container at the juncture of the sidewall and the end panel.
Patent CA-1081506-A (CA)
Inventor: TAKAHASHI SHIGEO
IPC: A61C5/77
Filed: 1976-07-20
Granted: 1980-07-15
Abstract: PORCELAIN SURFACED DENTAL CROWN            ABSTRACT An improved porcelain dental cap or crown is described in which the usual metallic base has a metallic bonding agent thermally sprayed thereon.  A layer of ceramic material is thermally sprayed over the bonding agent and finally the usual porcelain layer is applied.  An additional layer of a mixture of bonding agent and ceramic can be thermally sprayed between the bonding agent layer and ceramic layer and an additional layer of a mixture of ceramic and porcelain can be thermally sprayed between the ceramic layer and the porcelain layer.
Patent CA-1081500-A (CA)
Inventor: NORDSTROM KJELL H
IPC: G01G19/14
Filed: 1976-07-29
Granted: 1980-07-15
Abstract: Abstract of the Disclosure:   A load weighing device is provided to determine the magnitude of a load carried by a material handling device such as a lifting crane, hook block arrangement, or the like.  The weighing device is designed to be incorporated into existing material handling apparatus and to accurately measure the magnitude of any load being handled by the apparatus while minimizing the likelihood of extraneous forces from introducing erroneous measurements (unrelated to the load) into the weighing system.  In a first embodiment of the invention, the material handling apparatus includes a first structure for carrying a load, a second structure from which said first structure is suspended, with one of the structures including an elongated force-transmitting member having a longitudinal axis.  A load member has a central portion which engages a portion of the force-transmitting member and the load member also has opposite end portions which engage the other of the structures.  The load member is mounted such that the first structure applies a force thereto in proportion to the load in one direction to either the central portion or the end portions of the load member, while the second structure applies a force to the other of the central portion or the end portions.  Means are provided for measuring the strain introduced into said load member due to the application of said forces applied thereto.
Patent CA-1072774-A (CA)
Inventor: DUFF IAN D
IPC: G01N21/00
Filed: 1976-08-17
Granted: 1980-03-04
Abstract: TITLE OF THE INVENTION            "Investigation of a specimen in a vial held in a rotatable turntable with temperature control".               ABSTRACT OF THE DISCLOSURE          Apparatus for use in investigating specimens comprises a turntable adapted to support a series of vials for containing liquid specimens with the vials arranged in a circular array centred on the rotational axis of the turntable, means for rotating the turntable to effect carriage of specimens under investigation, and means for dispensing predetermined quantities of liquid into the vials, the vials being presented in turn to the dispensing means by virtue of the rotation of the turntable. The dispensing means comprises a dispenser disposed adjacent the turntable and incorporating a tubular body having an inlet through which liquid may enter the body and an outlet comprising a dispensing tip through which liquid may be dispensed from the body into one of the vials. In order that the dispensing means may dispense liquid at a closely controlled temperature, the dispenser       incorporates means for heating the tubular body and means for automatically controlling the heating means so as to maintain the tempera-ture of the liquid being dispensed substantially at a predetermined value. The apparatus may be used for analysing blood specimens.
Patent CA-1089466-A (CA)
Inventor: WADE PETER C
IPC: C07D211/14
Filed: 1976-08-31
Granted: 1980-11-11
Abstract: Abstract Compounds having the formula   wherein A in a straight or branched chain alkylene group; R is hydrogen halogen, alkyl, alkoxy, alkylthio, trifluoro-methyl, nitro, amino or cyano; and m is 2, 3 or 4 are useful in the treatment of allergic conditions in mammals.
Patent CA-1053764-A (CA)
Inventor: MEYER CHRISTIAN
IPC: H01R13/20
Filed: 1976-09-08
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE           Electrical connector comprising two identical components each formed with a pair of axially extending teeth, said teeth of one component engaging the interval between teeth of the other, each pair of teeth being radially bored through to accommodate a retaining rotary member, said member comprising flattened portions such that, when the flattened portions are directed parallel to the axis the teeth are released and when, on the contrary, the flattened portions are directed transversely the teeth are locked together.