baber/WOPTO huggingface dataset:
Patent CA-1074373-A (CA)
Inventor: WAFER JOHN A
IPC: H01H73/36
Filed: 1976-12-08
Granted: 1980-03-25
Abstract: A CURRENT LIMITING CIRCUIT BREAKER               ABSTRACT OF THE DISCLOSURE         A current limiting circuit interrupter having a movable contact arm disposed within a magnetic drive struc-ture and a pair of contacts disposed within a magnetic arc driving structure is provided.  The magnetic drive or slot motor rapidly moves the movable contact arm to separate the contacts upon a predetermined overload.  When high overload currents pass through the contactor arm extremely fast se-parating movement occurs between the contacts providing cur-rent limiting.  In one embodiment there is provided a pair of relatively stationary spaced apart contacts bridged by an elongated movable contact arm which can be moved away from the stationary contacts to establish two serially related arcs.  At each end of the bridging contact there is provided a surrounding magnetic structure or yoke which magnetically impels any arc formed during circuit interruption to move laterally outward into an arc extinguishing structure. The arc extinguishing structure can comprise non-magnetic metal-lic spaced apart plates.  The portion of the contact arm intermediate the ends is disposed within a magnetic drive or linear slot motor.  The bridging contact arm is biased toward an open position by a spring and held in a closed position by a magnetic latch.  When current exceeds a prede-termined value the bridging contact arm is drawn into the slot motor rapidly opening the circuit interrupter.  A plurality of T-shaped members are disposed partially within the magnetic arc driving yoke with the bottom portion of T-shaped member disposed in proximity to the contacts within the yoke opening.  During circuit interruption the magnetic forces generated within the yoke rapidly move any arc formed off of the contacts into engagement with the bottom portion of the T-shaped plates.  The portion of the T-shaped plates which contact the arc can be coated with tungsten for in-creased life.  Since any arc formed during circuit inter-ruption is moved rapidly off the contacts, the contacts can be formed from a material such as silver cadmium oxide, AgCdO, having a very low resistance.
Patent CA-1101944-A (CA)
Inventor: HOEGLUND LENNART H E
IPC: H03F3/04
Filed: 1977-01-17
Granted: 1981-05-26
Abstract: Abstract of Disclosure An electric amplifier useful for instance in simulators for strong electric signals, comprising several partial amplifiers so connected and voltage fed that they will each amplify an interval of the input voltage. Every partial amplifier comprises at least one amplification component and two gates, of which gates one is blocking those potentials applied to the component that are less than a given first value but is open for potentials exceeding said value while the other gate is open for potentials less than a given second value greater than said first value but is blocking the component for potentials exceeding said second value.
Patent CA-1077952-A (CA)
Title: Procede de preparation d'halogenoacetals a partir d'esters
Inventor: DECOR JEAN-PIERRE
IPC: C07C41/00
Filed: 1977-02-24
Granted: 1980-05-20
Abstract: : L'invention concerne un procédé de préparation d'halogénoacétals d'aldéhydes; éthyléniques de formule générale(I) (I) dans laquelle X est le chlore, brome ou iode, R1, R2, R3, R4 et R5,  identiques ou différents, sont un hydrogène, alcoyle, n est égal à 0, 1, 2, 3 ou 4 et R6 est alcoyle.  Selon ce procédé on fait réagir un cation halogène Cl+, Br+ ou I+ sur un ester de formule générale (II) (II) dans laquelle les symboles sont définis comme précédemment et R est alcoyle, en présence d'un alcool R6OH.  Les produits de formule générale (I) sont utiles comme agents de synthèse en chimie organique;  ils peuvent en particulier être utilisés pour introduire un motif aldéhydique .alpha.,.beta.-éthylénique sur un reste mono ou polyénique.
Patent CA-1079004-A (CA)
Inventor: COCH LESTER G
IPC: C23C18/16
Filed: 1977-03-11
Granted: 1980-06-10
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to an improved system for preventing water pollution in surface treatment of metals, e.g., in coating base metal parts within adherent coating of zinc, cadmium or similar protective metal by means of wet impact plating or electroplating, or in chromating or phosphating metal surfaces.  A preferred embodiment relates to a wet impact plating process wherein the several solutions used in cleaning or otherwise preparing the work, in plating it and in rinsing it are individually segregated after use and re-used in consecutive plating cycles in a special manner that release of ecologically objectionable effluent is eliminated and chemical and metal components fed into the process are conserved instead of being discarded after each plating cycle.  Consequently, the need for removing pollutants from process effluents can be avoided, the large volume of fresh water heretofore required to operate such a process is greatly reduced and the discard of ecologically objectionable process effluent into sewers is avoided.  Liquid effluent which is not suitable for direct recycling and re-use within the process can be rectified for further use.  A consider-able proportion of the water used in the process is normally lost through evaporation as the exothermic process progresses, such that the plating liquid withdrawn from the plating barrel after completion of each plating step is a relatively concentrated slurry.  When this slurry can no longer be converted to chemicals useful for recycling, after precipitation and decanting of the clear liquid, water in the now very dense slurry can be evaporated from it simply by leaving the slurry containers uncovered or by using waste process heat to accelerate evaporation and the residual solids disposed of by burial or other appropriate means.
Patent CA-1078010-A (CA)
Inventor: CHING LARRY K W
IPC: H01M4/20
Filed: 1977-03-25
Granted: 1980-05-20
Abstract: ABSTRACT OF THE DISCLOSURE   A method and apparatus apply an electrochemically active paste onto a grid substrate in the preparation of battery electrode plates.  First and second nozzle halves are positioned in juxtaposed relation and spaced apart a distance greater than the thickness of the substrate to define a passageway.  The cavity of each nozzle half is in alignment with the cavity of the other half and one cavity has an inlet for paste.  The substrate is advanced through the passageway and paste is supplied to the inlet and forced through interstices in the substrate and into the other cavity.  The pasted substrate is withdrawn through the passageway.  Paste is supplied to the inlet at a predetermined volumetric flow rate.  Lands formed in each half screed the paste on both sides of the substrate.
Patent CA-1069091-A (CA)
Inventor: HAFELE ROBERT X
IPC: F04B7/04
Filed: 1977-03-30
Granted: 1980-01-01
Abstract: SPRAY PUMP ASSEMBLY Abstract of the Disclosure A finger-operated spray pump assembly including a compression chamber, a generally cylindrical valve slidably fitted inside the compression chamber, a piston slidably fitted inside the valve, and a spring fitted inside of the valve for urging the piston away from the bottom end of the valve.
Patent CA-1041027-A (CA)
Inventor: JOHNSON NORMAN A
IPC: F16D55/224
Filed: 1977-05-17
Granted: 1978-10-24
Abstract: SPRING-SET CALIPER BRAKE          Abstract of the Disclosure A spring-set power-released caliper brake, ad-apted to grip the sides of a clamped member and, specif-ically, to provide a substantially uniform clamping force irrespective of actuator spring extension.  The caliper brake includes a base mounted in fixed relation with re-spect to the clamped member.  An actuator lever and an actuated lever are pivotally mounted in the base inter-mediate their ends.  One of a pair of brake shoes is pivotally mounted on one end of each lever.  The cylinder portion of a spring-set, power-released linear actuator is secured to the other end of the actuator lever and a compensating link is pivotally mounted in the other end of the actuated lever.  The thruster portion of the lin-ear actuator is pivotally connected to one end of the compensating link.  One end of a toggle link is intercan-nected to the other end of the compensating link and the other end of the toggle link is interconnected to the actuator lever.
Patent CA-1110937-A (CA)
Title: Solar energy collector
Inventor: GORNIAK JERRY
IPC: F24J2/06
Filed: 1977-05-30
Granted: 1981-10-20
Abstract: ABSTRACT          A solar collector having a hollow, pyramidical-shaped body made of insulation material and a fluid conducting coil of tubing extending around the inside of the body. plurality of sheets of rigid material support alternate layers of liquid and of lenses which focus sunlight onto the liquid and onto the coils of tubing thereby heating the liquid.  The liquid in the coils is connected in series with the liquid supported on the sheets so that liquid can be withdrawn from the ends of the coils and passed through a battery for storing the heat or otherwise supported and stored.  The collector also includes an infrared absorber.
Patent CA-1088651-A (CA)
Inventor: KINDGREN LEE
IPC: B21D28/24
Filed: 1977-07-06
Granted: 1980-10-28
Abstract: Abstract of the Disclosure Punch presses are positioned for punching holes at selected vertical locations in the flanges of I-beams, angle irons and channels by apparatus which utilizes a movable probe to determine the initial position of the presses and which further utilizes a reversible counter and a comparator to stop the presses after they have moved a selected distance from their initial position.
Patent CA-1066434-A (CA)
Title: Method and apparatus for positioning and ejecting fuel element bundles in and from a downstream end of a horizontally extending fuel channel
Inventor: ISAAC PETER
IPC: G21C19/14
Filed: 1977-07-11
Granted: 1979-11-13
Abstract: TITLE          A METHOD AND APPARATUS FOR POSITIONING AND EJECTING FUEL          ELEMENT BUNDLES IN AND FROM A DOWNSTREAM END OF A HORIZONTALLY                  EXTENDING FUEL CHANNEL    INVENTORS                       Peter Isaac ABSTRACT OF DISCLOSURE         A fuel bundle positioning and ejecting apparatus comprising two piston members, one slidable along a stem on the other piston member, and a compression spring urging the pistons apart, is secured in a horizontally extending fuel channel upstream of the coolant flow therealong.  The downs-stream one of the piston members has a shield plug attached thereto and the piston members are urged together in a fuel channel with the compression spring compressed, by a series of fuel element bundles along the fuel channel.  When the downstream end of the fuel channel is opened using a fuelling machine, with pressurized coolant therein and continued circu-lation of coolant along the fuel channel, the compression spring expands causing the piston members to become entrained in the coolant and urge the fuel element bundles out of the fuel channel and into the fuelling machine.  The positioning and ejecting device avoids the trailing fuel element bundle from becoming trapped in a downstream end of the fuel channel through which there is no coolant flow.  The apparatus includes variable flow restriction means to prevent the flow in the channel from increasing beyond acceptable limits to the fuel since the flow inherently tends to increase as fuel bundles are being removed and the flow resistance in the channel is reduced.
Patent CA-1105885-A (CA)
Inventor: PILTZ LARS-ERIC
IPC: B65D41/58
Filed: 1977-12-06
Granted: 1981-07-28
Abstract: ABSTRACT OF THE DISCLOSURE            The present invention provides a cover of plastics or similar material for sealing an opening of a container, where the cover forms the top of the container and a substantially liquid and gas-tight container casing extends from the cover to a substantially liquid and gas-tight bottom closure, a sealing label supported on the inside of the cover and attached to the casing, and a flange provided in said cover attached around substantially the entire external. side of the container casing at the upper edge thereof, said flange being provided with at least one tearing notch, which when penetrated releases the cover.
Patent CA-1071356-A (CA)
Inventor: DAHER REINHARD L
IPC: A61F2/66
Filed: 1977-12-21
Granted: 1980-02-12
Abstract: ABSTRACT OF THE DISCLOSURE         The foot comprises a keel of hard material such as wood and having a flat attachment surface, a curved instep portion and a planar diminished heel portion.  Re-cesses are formed above and below the front ends of the toe portion and a resilient reinforcing tongue portion is secured within each recess.  These tongues extend forward-ly of the keel and are connected together with a relative-ly dense foamed plastic therebetween so that the resis-tance of the tongues and of the plastic controls the flex-ural resistance of the toe portion.  The shape of the heel portion permits the maximum amount of foam possible to be provided at the heel so that the density of the heel is variable and controllable by the foaming process.  The final foam process envelopes the keel with the exception of part of the flat top, in one-piece moulded rubber or synthetic plastic foam so processed as to produce a skin on the exterior surface.  The thickness of foam at the rear upper area behind the flat upper surface of the keel is relatively small thus preventing any tendency of the keel to separate from the foam at this point.
Patent CA-1102409-A (CA)
Inventor: IWAKI TSUTOMU
IPC: H01M4/14
Filed: 1978-01-06
Granted: 1981-06-02
Abstract: TITLE OF THE INVENTION:           BATTERY PLATES COVERED WITH POROUS       THERMOPLASTIC RESIN   ABSTRACT OF THE DISCLOSURE:           Softening and separation of an active material in flat-type pasted positive plates are prevented by a simple process with an inexpensive material so that the life may be comparable with that of clad type positive plates.  Finely divided, corrosion-inhibitive thermoplastic resin powder is sprayed or otherwise applied over a pasted positive plate and heated and melted to form thin porous layers over the major surfaces of the positive plate.  According to another aspect of the invention, the same resin powder is melted and bonded within the positive plate so that the porous layers may be formed within the plate in addition to the porous layers on the major surfaces.
Patent CA-1106745-A (CA)
Title: Rubbery cushion having pressure-sensitive adhesive layer
Inventor: BROWN JAMES N
IPC: F16F1/36
Filed: 1978-01-09
Granted: 1981-08-11
Abstract: ABSTRACT              A bumper button or strip comprising (a) a rubbery cushion of oil-plasticized thermoplastic elastomer, (b) a dual-layer film, one layer of which is a polyolefin  such as polyethylene fused to the rubbery cushion, the other layer of which is an oriented polyester polymer such as biaxially-oriented polyethylene terphthalate film, and (c) a pressure-sensitive adhesive layer adhered to the polyester polymer. The polyester polymer serves as a barrier to prevent migration of the plasticizing oil into the pressure-sensitive adhesive.
Patent CA-1048873-A (CA)
Inventor: WISE RICHARD M
IPC: B60C9/12
Filed: 1978-01-23
Granted: 1979-02-20
Abstract: Abstract of the Disclosure Polyester elements for reinforcing composite rubber articles contain a total of about 3 to 7% by dry weight, based on the weight of the element, of an adhesive composition consisting essentially of a first deposit of heat set polyallyl glycidyl ether and a second deposit of a heat set mixture of a major amount of rubbery vinyl pyridine copolymer and a minor amount of a heat reactable resinous composition.  High H-adhesion values are exhibited by the elements.
Patent CA-1088319-A (CA)
Title: Mower with two sickle bars
Inventor: SHAVER J LYLE
IPC: A01D34/13
Filed: 1978-03-15
Granted: 1980-10-28
Abstract: MOWER WITH TWO SICKLE BARS                    ABSTRACT OF THE DISCLOSURE      A cutter bar has spaced apart guards projecting forwardly therefrom with shearing edges cooperating with the sickle knife elements secured to two aligned sickle bars.  An extension bar is secured to the inboard end of one of the sickle bars which extends in-overlying relation to the inboard end of the other sickle bar.  The extension carries several inverted knife elements which cooperate with upper shear edges on special guards at the inboard ends of the sickle bars.
Patent CA-1085767-A (CA)
Inventor: BOSTROEM KARL-JOHAN
IPC: B65B69/00
Filed: 1978-03-17
Granted: 1980-09-16
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus for opening barrels containing granular or powdered products and the like and for discharging said barrels.  The barrel is placed with the peripheral portions of one of its end walls in a fixed sealing contact with a supporting surface provided with a discharge passage for dumping the content of the barrel. The end wall is preferably cut open by relative rotation between the supporting surface and knife means protruding from beneath through the discharge passage, along an arcuate line subtending at most 360° and causing the goods passing out through the open end wall to fall down to a collecting point through a discharge chute or the like shielded from the surroundings.  The invention reduces the pollution of the surroundings by the contents of the discharged barrels.
Patent CA-1102440-A (CA)
Inventor: KLEINSCHMIDT PETER
IPC: G01S15/58
Filed: 1978-05-19
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE   A circuit arrangement for an ultrasonic burglar security system operates in accordance with the Doppler principle and comprises a transmitting transducer which is fed from an oscillator with an ac voltage and continuously transmits ultrasonic radiation during operation, a receiving transducer and a receiving circuit connected thereto and having an analysis circuit and a phase detector which continuously compares the signal received by the receiving transducer with the oscillator ac voltage to form a detection signal which is dependent upon the mutual phase angle.  The detection signal is fed to the analysis circuit which responds to the ac component thereof.  The circuit arrangement includes a phase-locked loop (PLL) which includes a further detector, a low-pass filter following the phase detector and an oscillator. The oscillator has its frequency controlled at a control input and may be formed as a voltage controlled oscillator (VCO).  The cut-off frequency of the low-pass filter is designed to be such that only signals which can pass fundamentally without reduction are those whose frequency is lower than a critical frequency Fc = c/E, where c is the speed of sound of the ultrasonic radiation in the area and E is the path of the ultrasonic radiation from the transmitting transducer to a reflective object located in the predetermined maximum range and back to the receiving transducer.
Patent CA-1080676-A (CA)
Inventor: MEYERS GEORGE L
IPC: B65D5/54
Filed: 1978-06-02
Granted: 1980-07-01
Abstract: ABSTRACT OF THE INVENTION      Tamperproof reclosable cartons are provided from a single paperboard blank which includes a receptacle portion and a cover portion which telescopes over the upper edges of the receptacle portion.  The cover portion includes a front cover panel and the front wall panel of the receptacle portion includes an integral bridging panel comprising a central sealing tab and flanking tab portions.  The front cover panel comprises at least one central tab area outlined by readily severable lines of weakness designed to be punched out upon opening the carton providing a readily visible in-dication that the carton has been opened.
Patent CA-1115301-A (CA)
Title: Duplex/simplex precollation copying  system
Inventor: HAMLIN THOMAS J
IPC: G03G21/00
Filed: 1978-06-15
Granted: 1981-12-29
Abstract: ABSTRACT OF THE DISCLOSURE        A copying system for copying either duplex or simplex original document sets as pre-collated copy sets, utilizing a document handling system providing selective automatic recirculative pre-collation copying of either duplex and simplex document sheets, with selective automatic sheet inversion.  Also described is an integral sheet attack normal force/jogger unit for continuous and simultaneous top loading and bottom feeding from either opposite or common directions from a stack of document or copy sheets.
Patent CA-1115872-A (CA)
Title: Method for preparing bleed resistant lithographic  inks
Inventor: ARORA MANOHAR L
IPC: C09D11/00
Filed: 1978-08-10
Granted: 1982-01-05
Abstract: ABSTRACT OF THE DISCLOSURE             Bleed resistant lithographic ink compositions containing axo red pigments are prepared by mixing a wetting agent such as an amine, an amine oxide, an amide, an amidine, an amidoxime, an oxime, an oxazolidine, or an amino acid with a substantially dry flushed color.
Patent CA-1120956-A (CA)
Inventor: BEARD WILLIAM Q JR
IPC: C07C17/154
Filed: 1978-08-16
Granted: 1982-03-30
Abstract: Abstract of the Disclosure The production of undesirable 1,1,2-trichloroethane and unsym-tetrachloroethane during the production of perchloro-ethylene is eliminated or essentially eliminated by an improved oxychlorination reaction. The oxychlorination reaction is carried out in the presence of a copper chloride-alkali metal chloride catalyst mixture deposited on a microspheroidal activated alumina carrier having an average particle size of between about 40 and about 70 microns and a surface area of at least about 100 m2/g with the copper chloride and alkali metal chloride being present on the carrier in a weight ratio of at least about 1.2 to 1. Reaction parameters, including, e.g., time, temperature and pressure, are controlled to produce a reaction product containing perchloro-ethylene and trichloroethylene, and the reaction product is free from 1,1,2-trichloroethane and unsym-tetrachloroethane.
Patent CA-1113559-A (CA)
Inventor: HAWKINS RONALD G
IPC: H02G7/14
Filed: 1978-08-16
Granted: 1981-12-01
Abstract: Abstract of the Disclosure A device for damping vibration, such as aeolian, of a suspended conductor.  The device comprises at least one coil spring, at least a portion of the turns of which are close wound, and at least one clamp for attaching the spring to a conductor in spaced relation thereto.  At least one inertial weight is mounted on or attached to the spring so that the weight can be resiliently suspended from the conductor by the spring and conductor clamp.  The inertial weight is effective to relatively translate and thereby provide sliding friction between the close wound turns of the spring in a direction perpendicular to the axis of the spring when an associated conductor undergoes vibration above a given magnitude, and to bend the spring such that adjacent close wound turns of the spring separate from and impact against each other, the sliding friction and impacts between the turns of the spring being effective to dissipate the energy of the vibration of the conductor in the form of heat.
Patent CA-1178095-A (CA)
Inventor: HODGE MALCOLM H
IPC: G02B6/24
Filed: 1978-09-19
Granted: 1984-11-20
Abstract: ABSTRACT OF THE DISCLOSURE         A guide for use in making an optical signal trans-missive connection between the ends of a pair of single optic fibers.  The guide is comprised of three pre-determined length glass rods which are disposed in a side-by-side array parallel to one another with longitudinal peripheral portions of adjacent rods in contact with and connected to each other to form a cusp-shaped interstitial channel therebetween.  The channel includes open ends and an arcuate portion at the ends of the rods with the arcuate portion used to force both ends of the fibers inserted into the guide into one of the corners of the cusp-shaped channel so that the ends of the fibers are aligned with each other along the corner.