baber/WOPTO huggingface dataset:
Patent CA-1068781-A (CA)
Inventor: SUZUKI TADAO
IPC: H02M3/28
Filed: 1976-10-13
Granted: 1979-12-25
Abstract: SURGE CURRENT PROTECTION CIRCUIT                ABSTRACT OF THE DISCLOSURE     A surge current protection circuit includes an input terminal supplied with a rectified alternating voltage, an output terminal to be connected to a load, and a semicon-ductor controlled rectifier having its anode and cathode electrodes connected in series between the input and output terminals.  The collector and emitter electrodes of a con-trol transistor are connected between the gate and cathode electrodes of the rectifier.  The base-emitter voltage is supplied with any sharp transients, and the transistor becomes conductive before the rectifier if the transients are sharp enough and of high enough amplitude.  Conduction of the transistor prevents the semiconductor controlled rectifier from conducting surge currents and protects circuits con-nected in series with the rectifier.
Patent CA-1090616-A (CA)
Inventor: BERG WINFRED M
IPC: F16G1/28
Filed: 1977-03-02
Granted: 1980-12-02
Abstract: ABSTRACT A toothed transmission belt adaptable for use with gears and sprockets featuring an elongated body portion com-prising at least one elongated flexible body element cable with a flexible belt-like covering and a series of teeth indented into the belt-like covering.  The cable element acts as a guide to keep the belt from running off the gear or sprocket.
Patent CA-1055352-A (CA)
Inventor: ANDREN INGMAR
IPC: B07B4/08
Filed: 1977-03-16
Granted: 1979-05-29
Abstract: Abstract of the Disclosure The disclosure relates to a process and a cleaning machine for seed, grain and similar goods, in which the clean-ing is realised by means of air circulated in an enclosed path by at least one fan, the air passing the grain adjacent the discharge opening of the machine for the air-cleaned grain. In the machine the resistance to the air circulating in the en-closed path is adjusted such that the static O-point will be located in the vicinity of the discharge opening for the air-cleaned grain. Furthermore, for the purposes of the above-disclosed process, the fan cooperates with a duct for the cleaning air mov-ing to the fan, and with a duct for the air recycled to the clean-ing station at the discharge opening, the ducts being of roughly the same length.
Patent CA-1084581-A (CA)
Inventor: MONTANARI PIERO
IPC: H01H85/00
Filed: 1977-05-05
Granted: 1980-08-26
Abstract: ABSTRACT OF THE DISCLOSURE Each pair of two pairs of terminals is connected by a conducting strip formed of a metallic material deposited on a fragile support block.  The terminal connectors are shaped in an interwoven pattern, with an intervening space, such that the support block will not break along the space pattern. The connector strips are connected by a resistance material deposited along the space pattern and overlapping the adjoin-ing strips.  The four terminals are connected into a circuit arrangement so that the resistance material forms part of a vital resistor network which if interrupted causes that circuit arrangement to assume a safe condition.  Any rupture of the resistance material and/or the support block due to thermal differences or mechanical force interrupts the con-tinuity of one or both connector strips to create a safe failure condition.
Patent CA-1086671-A (CA)
Inventor: RIGHELATO RENTON C
IPC: C12R1/065
Filed: 1977-05-18
Granted: 1980-09-30
Abstract: ABSTRACT OF THE DISCLOSURE      Polysaccharide is produced in good yields with good control by continuous culture of a polysaccharide-producing strain of Azotobacter vinelandii under carbon-limited conditions, preferably with restricted oxygen uptake, with the advantage that the effluents produced are non-polluting having a low biological oxygen demand (B.O.D.).
Patent CA-1067062-A (CA)
Inventor: SATO TERUYUKI
IPC: C10M169/00
Filed: 1977-05-30
Granted: 1979-11-27
Abstract: ABSTRACT OF THE DISCLOSURE         Hydraulic fluid compositions having a high boiling point and a boron content of 0.2 to 1.6 are formed from (a) a reaction product of (i) a polyalkylene glycol monoalkyl ether, (ii) a polyalkylene glycol and (iii) a polyoxyalkylene mono- or poly- ol having a molecular weight of 1000 to 5000 with (iv) a boron com-pound, (b) a polyalkylene glycol monoalkyl ether, (c) a poly-alkylene glycol and (d) a polyoxyalkylene mono- or poly- ol having a molecular weight of 1000 to 5000.
Patent CA-1043228-A (CA)
Inventor: SMITH DUANE R
IPC: F16L41/14
Filed: 1977-06-16
Granted: 1978-11-28
Abstract: ACCUMULATOR DRAIN     A B S T R A C T            The hydraulic control system including an accumulator includes a safety connecting means for connecting the accumulator to the system so that partial disengagement of the connecting means automatically vents the accumulator to the sump of the hydraulic system.
Patent CA-1087551-A (CA)
Inventor: VAN BREEN ADRIAAN W
IPC: A01M13/00
Filed: 1977-06-22
Granted: 1980-10-14
Abstract: ABSTRACT    A vapour-emitter capable of continuously and slowly emitting vapours, and repeatedly and rapidly expelling a boost of vapours, into the atmosphere surrounding the container, comprising a container having at least one slow release generator positioned therein, characterized in that the container is provided with at least one opening at two different locations, the slow release generator being part of or forming a substantially vapour-tight partition between the locations and being in contact with the atmosphere on both sides of the partition, and expelling means being provided for expelling vapour-containing air from the container.
Patent CA-1048902-A (CA)
Inventor: EBISCH WOLFGANG
IPC: D03C3/44
Filed: 1977-06-27
Granted: 1979-02-20
Abstract: WOLFGANG EBISCH                        DEVICE FOR EXERTING BACK-PULL ON THE HEDDLES OF JACQUARD LOOMS     A B S T R A C T         This relates to a device for exerting a back-pull on the heddles of Jacquard looms.  In such looms the upper end of each heddle is connected to a patterning machine and it is necessary that the lower end of the heddle be connected to a pulling device which applies the necessary pull in the opposite direction to return the displaced heddle.  Each heddle has permanently connected thereto a piston which is positioned within a cylinder guide with one end of the cylinder guide being open into a chamber wherein a pressure other than atmos-pheric pressure is maintained and the opposite end of the cylinder guide is open to the atmosphere in a manner wherein each piston and its associated heddle is displaced away from the patterning machine.  The pull-back pressure may be varied by varying the pressure within the chamber.
Patent CA-1058898-A (CA)
Inventor: GUTMANN FRANZ
IPC: B01D29/085
Filed: 1977-08-17
Granted: 1979-07-24
Abstract: ABSTRACT OF THE DISCLOSURE           A filtering device is provided for making drinks such as coffee.  The container has a base which has openings for the drained filtrate.  The base also has radial ribs which project into the container cavity.  A fine fabric sieve is supported on these ribs.       The base is provided in its central area with a disc-shaped insert the height of which corresponds to the distance between the upper surface of the base and the lower surface of the sieve.  The sieve lies on the insert as well as on the radial ribs.
Patent CA-1045525-A (CA)
Inventor: HANCOCK WILLIAM L
IPC: B05D3/02
Filed: 1977-08-18
Granted: 1979-01-02
Abstract: ABSTRACT OF THE DISCLOSURE           The invention provides a process for converting straight wire into a spring which is then heat treated and exposed to a fluidized bed for coating, the quality of the resulting coating being indicative of the quality of the heat treatment.  A box spring assembly is also disclosed having a generally rectangular frame consisting of side and end rails and a plurality of spaced cross rails extending between the side rails, a border wire con-forming generally to the shape and boundaries defined by the side and end rails, a plurality of longitudinal and transverse main springs which are produced by the above process and which are parallel to the side and end rails and perpendicular to each other, and a plurality of internal support springs extending diagonally between pairs of main springs.  Each main spring is attached to the border wire by a clip, and either the border wire or the spring or both are coated with a plastic material to preclude slippage of the clip.  Furthermore, each main spring is coated with plastic.  All the wires may be coated with a different color plastic to facilitate assembly of the product.
Patent CA-1086708-A (CA)
Inventor: ROLLMANN LOUIS D
IPC: B01J29/06
Filed: 1977-09-09
Granted: 1980-09-30
Abstract: ABSTRACT OF THE DISCLOSURE           Crystalline zeolites in the form of particles the outer shell of which is aluminum-free; various techniques by which zeolites can be prepared in such a form; and certain organic conversions the selectivity of which is enhanced by the use of such zeolites as catalyst.
Patent CA-1096797-A (CA)
Inventor: NAKANISHI TORU
IPC: C12N9/04
Filed: 1977-11-18
Granted: 1981-03-03
Abstract: ABSTRACT:          Choline oxidase is prepared by fermentation of a microorganism capable of producing choline oxidase and belonging to the genus Brevibacterium or Corynebacterium. Choline oxidase is useful for the determination of choline.
Patent CA-1078617-A (CA)
Inventor: MARTON MIKSA
IPC: B24B55/10
Filed: 1977-11-23
Granted: 1980-06-03
Abstract: TOOL HOUSING Abstract of the Disclosure A vacuum housing for a rotary tool, particularly a hand-held tool such as a grinder, consists of a tubular casing concentrically positioned around the tool.  The casing features a telescopic nose portion.
Patent CA-1107892-A (CA)
Inventor: FRIEDLANDER CHARLES B
IPC: C08F299/00
Filed: 1978-02-14
Granted: 1981-08-25
Abstract: Abstract of the Disclosure Urea-linked urethane-modified acrylate-capped resins provide radiation curable coating compositions of exceptional durability and flexibility and which are essentially free of volatile solvents.  These resins, typically produced by controlled addition of water to an isocy-anato-terminated urethane- or thiocarbamate-containing prepolymer moiety to form an intermediate which is reacted with a hydroxyl-containing acrylic monomer that furnishes ethylenic unsaturation crosslinking sites to the resin, are further characterized by the resin composition substan-tially comprising molecules wherein the urea group has directly adjacent radicals derived from the prepolymer moiety.
Patent CA-1096894-A (CA)
Inventor: GRESKOVICH CHARLES D
IPC: C04B35/58
Filed: 1978-02-17
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE             A dense polycrystalline silicon nitride body is produced by hot-pressing a particulate mixture of silicon nitride and a beryllium additive.  The hot-pressed silicon nitride body is useful in structural applications such as components for gas turbines.  Silicon nitride is a choice material for such applica-tions because of its good high temperature strength and creep resistance, low thermal expansion coefficient and excellent oxidation resistance.     ,
Patent CA-1079140-A (CA)
Inventor: CRADEUR ROBERT R
IPC: E21B36/02
Filed: 1978-04-12
Granted: 1980-06-10
Abstract: METHOD AND APPARATUS FOR PRODUCING        THERMAL VAPOR STREAM     Abstract of the Disclosure Method and apparatus for producing a thermal vapor stream for injecting into a subterranean formation for the recovery of liquefiable minerals therefrom, including a pressure vessel containing a high pressure combustion chamber for producing a heating gas for introduction into a heating gas injector.  The heating gas injector is partly immersed in a steam generating section of the pressure vessel such that the heating gas is passed through the steam generating section to produce steam and combustion products which are directed between the pressure vessel and the combustion chamber for simultaneously cooling of the combustion chamber by further heating of the steam and combustion gases.                             -I-
Patent CA-1087885-A (CA)
Inventor: TANAKA TAMOTSU
IPC: B25B23/147
Filed: 1978-05-09
Granted: 1980-10-21
Abstract: TITLE OF THE INVENTION ELECTRICALLY POWERED TORQUE-CONTROLLED TOOL              ABSTRACT OF THE DISCLOSURE An electrically powered torque-controlled tool having an electric motor which rotates a bit, whereby a screw, bolt or nut fitted at the front and of the bit is tightened.  The tool is designed so that when the tighten-ing force exerted by the bit reaches a preset torque, the driving by the electric motor is stopped by opening the switch and concurrently therewith a clutch interposed between the electric motor and the bit is disengaged and held in this released state, thereby avoiding the reaction which would otherwise be produced by the motor inertia immediately after the tightening, thus achieving a high-precision tightening operation.
Patent CA-1080493-A (CA)
Inventor: YAMANAKA KENJI
IPC: A47J37/10
Filed: 1978-06-29
Granted: 1980-07-01
Abstract: ABSTRACT OF THE DISCLOSURE    A container-pan used for instantly frizzlable dry foods is made of an aluminium foil sheet having a scoop-type grip formed integrally with upper edge portion of the pan; a cardboard lid to be put on the pan and grip, crossed lines being press-marked thereon for inflection; and a shrink-packaging polymer film for attaching the lid to the pan and grip.  To frizzle a dry food mass which has been received in the pan, the polymer film and the lid are removed from the pan and grip.  The lid is then folded to form a hinge-like protecting cover and is used for wrapping up the grip which becomes heated.
Patent CA-1106612-A (CA)
Inventor: TOLLEY WILLIAM K
IPC: C22B34/12
Filed: 1978-07-10
Granted: 1981-08-11
Abstract: PRODUCTION OF TITANIUM METAL VALUES                      ABSTRACT OF THE DISCLOSURE     Titanium metal values may be recovered from a titanium bearing source by subjecting the titanium bearing source to a reductive roast follow-ed by leaching the reduced source with a hydrogen chloride source.  There-after the leached titanium bearing source is precipitated by contact with a metal oxide such as ferric oxide in which the metal is present in a highly oxidized state.  The precipitated titanium dioxide is separated and recover-ed while the spent liquor is treated to form hydrogen chloride which may be recycled to the leaching zone with a simultaneous formation of the metal oxide for recycle to the precipitation zone.
Patent CA-1116358-A (CA)
Title: Apparatus for the production of vehicle  tyres
Inventor: GRUNNER ERICH
IPC: B29L30/00
Filed: 1978-07-14
Granted: 1982-01-19
Abstract: ABSTRACT OF THE DISCLOSURE:              Apparatus for producing vehicle tyres by casting or injection moulding, having a number of moulds, determining the shape of the tyre to be produced, which are disposed on mould carriers and comprise parts forming the outer contour of the tyre body and a subdivided core which determines the inner shape of the tyre.  The mould carriers are attached to a turntable and, dispos-ed alongside the first turntable, is a second turntable having a number of depositing stations for the cores or core parts and the same number of stations for finished tyres, the two turntables being rotatable step-by-step synchronously around their axes, and the number of stations on the second turntable for the cores or core parts on the one hand and the finished tyres on the other is equal  in each case to the number of the mould carriers disposed on the first turntable.
Patent CA-1093832-A (CA)
Title: Process for the utilization of waste materials from electrolytic aluminum reduction systems
Inventor: BELL NORMAN
IPC: A61K8/92
Filed: 1978-07-17
Granted: 1981-01-20
Abstract: ABSTRACT OF THE INVENTION          A fully integrated process is provided for the recovery of valuable components from waste materials in electrolytic aluminium reduction systems.  The waste materials, such as spent pot linings, channel and trench cleanings, floor sweepings and spent alumina from offgas purifying dry scrubbers, are combined, then pyrohydrolyzed at elevated temperature.  Fluoridic values, such as NaF and HF can be recovered from the offgas generated by pyrohydrolysis, while alumina and Na20 values, or if desired, sodium aluminate, is reclaimed from the solid residue of pyrohydrolysis.          The fluoridic values from the pyrohydrolysis offgas can be used for the manufacture of both electro-lytes for aluminium reduction cells and also for the production of anhydrous HF.  The alumina from the pyro-hydrolysis  residue can be reclaimed by a Bayer process-type leach with a caustic solution and the recovered high purity alumina utilized, for example, as reduction cell feed and/or for scrubbing reduction cell offgases. If the solid residue of pyrohydrolysis contains signifi-cant amounts of sodium aluminate, this material can either be directly used for dry scrubbing cell offgases, or if desired, utilized for production of high purity alumina.
Patent CA-1109416-A (CA)
Inventor: DE NORA ORONZIO
IPC: C22C29/12
Filed: 1978-08-14
Granted: 1981-09-22
Abstract: ABSTRACT OF THE DISCLOSURE           A novel polyphase packing for alkali metal mercury amalgam denuders comprised of a sintered mixture of powdered valve metal borides and valve metal carbides, a novel amalgam denuder containing the said polyphase packing and a novel process of decomposing alkali metal mercury amalgam by con-tacting the amalgam with an aqueous media in the presence of the said polyphase packing.
Patent CA-1115499-A (CA)
Inventor: POSCH OSKAR
IPC: C09C1/50
Filed: 1978-08-28
Granted: 1982-01-05
Abstract: ABSTRACT OF THE DISCLOSURE     The disclosed apparatus is of the type in which feed units feed air and hydrocarbon material into a reaction chamber, where they react to form carbon black. A filter then removes the carbon black. Disclosed is the provision of a mixing chamber between the feed units and the reaction chamber. The mixing chambers pass through a demountable hollow reactor cover through which there is circulated a heat transfer fluid for controlling the temperature of the mixing chamber walls. The mixing chamber can be common to a plurality of feed units or be separate for each feed unit.     Also disclosed is a feed unit which has a vortex plate, an output nozzle, and a hydrocarbon spray nozzle, all mounted on a hydrocarbon supply tube which in turn is fixed to a demountable cover of the feed unit. This permits these components to be readily removed with the cover for replacement or service.          The feed units can also have their temperature controlled by the heat transfer fluid for the mixing chambers.            August 18, 1978
Patent CA-1116513-A (CA)
Inventor: PAYNE DAVID T
IPC: A01N43/80
Filed: 1978-09-28
Granted: 1982-01-19
Abstract: ABSTRACT       A composition of matter comprising a solution containing from 5 to 50% by weight of an alkali metal salt of crude 1,2-benzi?othiazolin-3-one in a hydroxylic organic solvent selected from at least one of dipropylene glycol, tripropylene glycol, polypropylene glycols, polyethylene glycols, lower alkyl carbitols, methanol, ethanol and mixtures of at least one of these solvents and water.  Biocidal compositions suitable for indirect food contact applications and in-can preservation of water-based paints in which they are non-yellowing.
Patent CA-1132670-A (CA)
Inventor: PIOTROWSKI WIESLAW S
IPC: H01P1/39
Filed: 1978-10-13
Granted: 1982-09-28
Abstract: ABSTRACT               ELECTRONIC WAVEGUIDE SWITCH       An electronic waveguide switch of a latching type particularly suitable for the microwave and millimeter range.  The switch comprises a three port housing connected to three waveguides.  A switchable junction ferrite is dis-posed in the center of the housing, the ferrite being of the latching type.  A driver ferrite is disposed outside of the housing.  All ferrite elements have a substantially cylindrical shape.
Patent CA-1099327-A (CA)
Inventor: GUSTIN POL A G J
IPC: H05K3/00
Filed: 1978-11-30
Granted: 1981-04-14
Abstract: ABSTRACT :              A method of manufacturing an electrostatic write head. An insulating plate-shaped substrate is pro-vided with conductor tracks which extend as parallel conductor tracks in a strip-shaped region on the sub-strate. The substrate is divided into two plates ac-cording to a dividing line which extends in the strip-shaped region, perpendicularly to the conductor strips.          The two plates are subsequently joined so that their sides provided with conductor tracks face each other.
Patent CA-1124696-A (CA)
Inventor: BLACK DENNIS A
IPC: F04B27/18
Filed: 1979-02-14
Granted: 1982-06-01
Abstract: DRIVE SHAFT LUG FOR VARIABLE                  DISPLACEMENT COMPRESSOR          Abstract of the Disclosure An improved drive lug and shaft through bore structure for use with a wobble plate compressor, the output of which is modulated in response to refrigeration requirements by varying the piston displacement to match the cooling requirement.  The drive lug has a cylindrical body formed with a radially outer flat-sided wobble plate connection portion and a radially inner shank of reduced diameter separated by a radiused neck transition portion.          A flared opening in the shaft bore receives the neck portion while means on its free end of the shank portion cooperate with the shaft securing the lug in the shaft bore so as to establish a clearance fit between the lug shank and the bore providing extended fatigue life together with ease of manufacture and assembly.
Patent CA-1101306-A (CA)
Title: Diverter tub spout
Inventor: NICKLAS JAMES R
IPC: F16K31/52
Filed: 1979-02-14
Granted: 1981-05-19
Abstract: DIVERTER TUB SPOUT     ABSTRACT OF THE DISCLOSURE      A diverter tub spout for use in a bathtub installation including a shower head interconnected to a common source of water.  A floating valve member is positioned within the spout water passage and is responsive to water pressure to abut a valve seat to close the passage.  A valve control member capable of holding the valve member remote from the seat to permit water flow is held in the flow position by a manually operable stem in a manner that positively allows water flow regardless of the magnitude of water pressure.  The stem easily may be positioned to allow the floating valve to close, diverting water from the spout to the shower head, but upon the water pressure dropping below a predetermined level, the tub spout parts will automatically return to their flow positions.
Patent CA-1122250-A (CA)
Inventor: MARTINDALE JOHN V
IPC: F24H3/00
Filed: 1979-02-23
Granted: 1982-04-20
Abstract: Case 2672 BASEBOARD HEATER ABSTRACT OF THE DISCLOSURE           In an electrical baseboard heater including an elongated hollow casing, with an air flow passageway therein having an air inlet and an air outlet, there is provided a plurality of aligned thermal   insulating spacers secured between the top wall of the hollow casing and a re-entrant portion of the top wall adjacent the air outlet.  An elongated air guide is supported within the casing by the insulating spacer's in close proximity to the top wall, providing an air gap therebetween.  The air guide deflects warmed air out of the casing and prevents overheating of the top wall of the casing.  The air guide has a flange resting against the spacers which are in mutually spaced relation across the flange. Previous baseboard heaters had the flange of their air guides supported directly on the re-entrant portion of the top wall, permitting heat transfer by conduction between the guide and top wall.  The present heater employs the spacers to thermal   isolate the air-guide from the top wall, thus eliminating heat transfer by conduction therebetween.