baber/WOPTO huggingface dataset:
Patent CA-1117604-A (CA)
Title: Receiving apparatus having a plurality  of antennas
Inventor: GRUNZA GENE
IPC: H04B7/08
Filed: 1979-07-24
Granted: 1982-02-02
Abstract: SPECIFICATION     ABSTRACT OF THE DISCLOSURE     An apparatus is disclosed for receiving and processing transmitted electromagnetic waves, for example transmitted radio signals which contain audio information including recognizable speech information.  In accordance with the invention, there are provided first and second spaced antennas.  Switching means are provided for coupling either the first or the second antenna to a common channel.  Signal processing means are provided for processing the signals on the common channel.  Means are provided for comparing the signal on the common channel with a predetermined threshold condition and for generating a control signal in response to the comparison.  Finally, means are provided for applying the control signal to the switching means to control selection of the first or second antenna.  In one preferred embodiment of the invention, the comparator means comprises means for comparing the energy level of the signal at the common channel with a predetermined energy threshold.  During operation, the antenna which is active at a particular time will remain active (i.e. coupled to the common channel) so long as the received radio frequency energy, at the characteristic transmission frequency, remains above the predetermined threshold level.  If the level of received energy at this characteristic frequency falls below the predetermined threshold level (for example, by virtue of the antenna momentarily being in a multipath "dead" spot), the comparator means will sense this condition and operate the switch such that the other antenna is coupled to the common channel and becomes active.  In another form of the invention the signal processing means includes means for generating an automatic gain control (AGC) signal which depends upon the instantaneous level of the signal on the common channel.  A signal derived from the AGC signal is compared with a thres-hold signal that depends upon a predetermined reference, and a control signal is generated when the signal derived from the AGC signal exceeds the threshold signal.
Patent CA-1123893-A (CA)
Inventor: FRIEDMAN LESTER A JR
IPC: H05F3/00
Filed: 1979-08-07
Granted: 1982-05-18
Abstract: A B S T R A C T     A method for simultaneously neutralizing posi-tive and negative static electric charges on surfaces consisting essentially of contacting a first atmos-phere with a positive static charge composition (108) by spraying (125) an effective amount of the composi-tion into the atmosphere, contacting a second atmos-phere with a negative static charge composition (8) by spraying (25) an effective amount of the negative static charge composition into the second atmosphere, mixing (126) the resulting treated first atmosphere with the resulting treated second atmosphere to thereby form a mixed atmosphere, and contacting at least one surface (16) having positive and negative static electric charges thereon with the mixed atmosphere to thereby simultaneously neutralize positive and nega-tive static charges on the surface.
Patent CA-1148708-A (CA)
Inventor: JACKO MICHAEL G
IPC: B29C43/34
Filed: 1979-08-13
Granted: 1983-06-28
Abstract: ABSTRACT OF THE DISCLOSURE       A process of manufacturing a composition of materials reinforced with glass fibers for use as a friction material article requires the blending of a mixture of glass fibers, friction modifiers and a thermosetting phenolic resin until the individual filaments that make up the glass fiber bundles are separated and are uniformly distributed throughout the mixture to produce a bulk density of between 0.1 - 0.6 gm/cc-3. Thereafter, the mixture is placed in a mold to form briquettes.  The briquettes are hot pressed to establish a preselected density and shape before curing the thermosetting resin which thereafter holds the filaments and friction modifiers in a fixed relationship.
Patent CA-1127949-A (CA)
Inventor: HOWAT ROBERT J
IPC: H01B13/26
Filed: 1979-09-13
Granted: 1982-07-20
Abstract: WRAPPING OPTICAL FIBRES OF INDEFINITE LENGTH Abstract of the Disclosure Wrapping an optical fibre in tape by a progressive operation in which the tape having a contact adhesive covered surface is pressed along a narrow width portion to the fibre and then succeeding width portions are also turned around the fibre and pressed against it.  The procedure is intermittent with each width portion turned completely against the fibre before turning of the next portion.  This method eliminates wrinkles in the tape.            - i -
Patent CA-1129283-A (CA)
Inventor: SHOWALTER MERLE R
IPC: F02M29/06
Filed: 1979-09-21
Granted: 1982-08-10
Abstract: ABSTRACT           A vortex fuel air mixer is positioned between the air throttle and the intake manifold of an engine.  Part of the expansion flow velocity past the air throttle flows tangentially into the vortex chamber of the mixer, providing angular momentum which drives the flow into a vortical pattern.  The flow streamlines within the vortical flow form into a generally irrotational flow pattern which swirls from the outside wall of the vortex chamber inwardly to a central vortex chamber outlet.  This outlet feeds the engine intake manifold.  Centrifugal forces in the swirling flow fling fuel droplets to the outside wall of the vortex chamber (in the manner of a cyclone scrub-ber).  This liquid fuel must evaporate in order to leave the vortex chamber. The interaction of the evap-oration, flow structure and turbulence relations inside the vortex chamber produces an essentially homogeneous mixture at the vortex chamber outlet.  Fuel evaporation time in the vortex chamber is quite short, so that the device exhibits excellent transient response.
Patent CA-1135634-A (CA)
Title: Appareil pour la separation d'emulsions par  coalescence
Inventor: LABAQUERE HERVE
IPC: B01D17/04
Filed: 1979-10-01
Granted: 1982-11-16
Abstract: appareil pour la séparation d'émulsions par coalescence Appareil pour la séparation d'émulsions organiques par coalescence, constitué par une enceinte close dans laquelle se trouvent superposées trois zones, une zone de déstabilisation de l'émulsion à la partie inférieure de laquelle est amenée l'eau contenant l'émulsion à séparer, une zone de filtration-coalescence, et une zone de flottation, caractérisé en ce que cette dernière se prolonge latéralement de part et d'autre de l'ensemble des zones superposées, les zones latérales de flottation ainsi créées étant séparées par un cloisonnement de ces zones superposées.
Patent CA-1125593-A (CA)
Inventor: WORKMAN WILLIAM JR
IPC: F03C1/40
Filed: 1979-10-12
Granted: 1982-06-15
Abstract: ABSTRACT OF THE DISCLOSURE    A portable pneumatic tool includes a valve closure member interposed in the tool motor exhaust passage and engaged with a speed responsive mechanism comprising a plurality of flyweights operable to move the closure member to an open position on starting of the tool motor.  On decreasing motor speed a coil spring assisted by a fluid pressure drop across the closure member forces the closure member to move against the decreasing centri-fugal force exerted by the flyweights to shut off-motor exhaust fluid flow to stop the motor.  The closure member is normally held in a partially open position by a second spring to enable the motor to be started.
Patent CA-1114961-A (CA)
Inventor: POLLOCK DAVID C I
IPC: C02F3/22
Filed: 1979-10-26
Granted: 1981-12-22
Abstract: ABSTRACT OF THE DISCLOSURE         An improved method and apparatus is provided for maintaining a constant gas-to-solids ratio in the effluent from a long vertical shaft waste treatment bioreactor.  In a vertical bioreactor wherein waste is circulated under air-injected oxidation conditions around a loop comprising adjacent downcomer and riser chambers connected at their terminals and operatively connected to a separation apparatus, the improvement comprises withdrawing treated effluent from the riser chamber into a cylindrical vessel from whence the effluent is directed either to the separation chamber or into the influent stream depending on the total level of fluid in the bioreactor.  Removal of large air bubbles from the effluent is also effected in the cylindrical vessel. The method provides improved gas-to-solids ratio in the effluent and improves sludge flotation in the separation apparatus.
Patent CA-1140007-A (CA)
Title: Sea cage for farming fish
Inventor: STELLEMAN YAN
IPC: A01K63/00
Filed: 1979-12-13
Granted: 1983-01-25
Abstract: A B S T R A C T            A marine cage fox breeding fish comprises means defining an axis around which the cage is adapted to be revolved. The cage has a grating grill mesh or the like for preventing escape of the fish.  At the ends of the defined axis are fixed two floats for monitoring the ballasting, when one is full of water, the cage being then completely immersed and the axis being horizontal and when the said float is empty of water, the cage then being semi-immersed and being capable of turning around the axis.  Inside the cage is fixed a means defining a rudder when the cage is immersed and the axis is horizontal, which means serves as collection device when the cage is caused to turn slowly around the said axis when horizontal.
Patent CA-1151618-A (CA)
Inventor: DUPREZ WAYNE R
IPC: F16K31/68
Filed: 1980-01-02
Granted: 1983-08-09
Abstract: Docket 2498-C                Abstract of the Disclosure An automotive thermostatic valve which comprises a stationary portion and a movable portion.  The stationary portion comprises a rigid frame member which includes a central portion and an outer annular portion.  The outer annular portion is joined to the central portion by radially extending spokes.          The outer annular portion of the rigid frame member is covered with a body of elastomeric material which is shaped to provide a valve seat surface for engagement by the movable portion of the valve and is also shaped to provide a securing region which is clamped within a fluid conduit within which the valve is positioned.  The outer annular portion of the rigid frame member has a radial portion adjacent the valve seat surface of the body of elastomeric material for support thereof and a cylindrical portion adjacent the securing region of the body of elastomeric material for support and reinforcement thereof during clamping thereof within a fluid conduit within which the valve is positioned.
Patent CA-1134594-A (CA)
Title: Procede de purification d'un acide phosphorique  impur
Inventor: LEVEQUE ALAIN
IPC: C01B25/234
Filed: 1980-01-23
Granted: 1982-11-02
Abstract: L'invention concerne un procédé de purification d'un acide phosphorique impur. On traite la phase organique provenant de l'extraction de l'acide phosphorique impur par lavage a contrecourant dans une zone de lavage comportant au moins 2 étages au moyen d'une solution aqueuse d'un composé de métal alcalin ou d'ammonium. Application du procédé a l'acide phosphorique de vole humide fournissant un acide phosphorique dont le rapport pondéral SO4/P2O5 est inférieur a 50 ppm avec un rendement élevé.
Patent CA-1153843-A (CA)
Inventor: BERTRAND JEAN-NOEL M
IPC: C08L33/02
Filed: 1980-02-18
Granted: 1983-09-13
Abstract: ABSTRACT         Disclosed is a polystyrenic composition having improved fire retardant properties, the composition com-prising a polystyrenic resin, a fire retardant amount of halogenated organic fire retardant agent selected from the group consisting of acetylene tetrabromide, dibromotetra-chloroethane, tetrachloroethane, pentachloroethane, hexa-chlorobenzene, hexabromobenzene, hexachlorobenzene, hexabromobenzene, tetrabromobutane, polyhalobiphenols, polyhalobiphenolethers, perhalopentacyclododecanes, pentabromomonochlorocyclohexane, and mixtures thereof, and a benzotriazolic compound having the formula   wherein R1 is H or -CH3 and R2 is H or -CH2N(R3)2 wherein R3 is H, an alkyl radical containing from about 1 to 12 carbon atoms or -CH2CH2OH in the amount from about 1 and 50% of the weight of the fire retardant agent.  The composition may be used in producing shaped or molded forms from expandable polystyrene beads or extruded shapes of mixtures of polystyrene and a foaming agent.
Patent CA-1153100-A (CA)
Inventor: MURAVIEV GENNADY A
IPC: G01M3/24
Filed: 1980-03-11
Granted: 1983-08-30
Abstract: Abstract of the Disclosure Disclosed is a leak location detecting apparatus for a pressurized pipeline, which comprises two measuring channels including each a transducer intended for con-version of mechanical oscillation into electric signals and having its output connected to an amplifier.  The amplifier outputs are electrically coupled with an indicator, and each channel further includes a limiter having one input connected to the output of the amplifier, a limiting level control unit whose output is connected to another input of the limiter, and a pulse shaper having its input connected to the output of the limiter.  The leak location detecting apparatus further includes a pulse coincidence circuit having its one input connected to the output of the pulse shaper of one channel, while its other input is connected through a variable delay unit to the output of the pulse shaper of the other channel, and a pulse coincidence counter whose input is connected to the output of the pulse coincidence circuit while its output is connected to the input of the indicator.  The present invention enables the presence and location of leaks to be quickly and precisely determined.
Patent CA-1144038-A (CA)
Title: Dispositif de commande de deux obturateurs  en serie sur une meme conduite
Inventor: CASACCI SEVERIN
IPC: F16K31/163
Filed: 1980-03-12
Granted: 1983-04-05
Abstract: Dispositif de commande de deux obturateurs montés en série sur une même conduite, et tournant chacun sur tourillons portés par un corps fixe; chaque obturateur est manoeuvré par au moins un vérin articulé d'une part sur au moins un levier claveté sur un tourillon. Chaque vérin de manoeuvre d'un obturateur est articulé d'autre part sur le corps fixe portant l'autre obturateur. L'invention s'applique aux robinets de protection d'une machine hydraulique dans une centrale hydraulique de haute chute.
Patent CA-1147252-A (CA)
Inventor: BUSCHULTE WINFRIED
IPC: F23D11/40
Filed: 1980-04-22
Granted: 1983-05-31
Abstract: "OIL BURNER"              ABSTRACT OF THE DISCLOSURE      An oil burner including an oil atomising nozzle to be mounted upstream of a transverse wall in a cylindrical flame tube and to discharge oil through an aperture in the wall through which air also passes into a cylindrical mixing tube positioned co-axially within the flame tube and open at its downstream end.  The flame tube has a length at least twice its diameter and a diameter between 2.0 and 2.5 times the diameter of the mixing tube.   At least one passage adjacent the transverse wall communicates between the interior of the flame tube and the interior of the mixing tube to recirculate combustion gases from the downstream end of the mixing tube to the upstream end thereof.   The peripheral wall of the mixing tube adjacent its downstream end is perforated.
Patent CA-1163453-A (CA)
Inventor: MAIOCCO GUISEPPE
IPC: H01H27/06
Filed: 1980-06-10
Granted: 1984-03-13
Abstract: ANTITHEFT DEVICE FOR MOTOR VEHICLES COMPRISING AN IGNITION AND STARTING SWITCH                      ABSTRACT         A motor vehicle power switch is provided and, in the form illustrated, is for use in conjunction with an automotive antitheft device.  The antitheft device has apparatus for engaging a latch in a notch in the steer-ing column to prevent turning of the steering column when the device is operative.  A key operates the apparatus which moves a slider with respect to a stator.  The slider has a plurality of conductive rollers which are urged toward the stator and at appropriate locations sequentially con-nects a main contact with secondary fixed contacts.  The fixed contacts may be connected to the coil, the service mechanism, the fuel pump, to the starter.  Specially designed sections are provided on the stator to facilitate rapid and positive closure of the electrical contacts.
Patent CA-1136113-A (CA)
Inventor: LEONARD JOHN J
IPC: C01B39/52
Filed: 1980-06-23
Granted: 1982-11-23
Abstract: PF 50-01-1608A PREPARATION OF ZEOLITE A BY HYDROTHERMAL TREATMENT Abstract of the Disclosure A process for producing zeolite A of the formula Nax (AlO2) x (SiO2) y.ZH2O wherein x = 10 to 14, y/x = 0.8 to 1.2 and Z = 1 to 30, which comprises heating at a temperature of 60 to 150°C an aqueous slurry comprising (a) at least one gram of clinoptilolite of the formula Nax(AlC2)x(SiO2)y.ZH2O wherein x = 5 to 7, y/x = 4.5 to 5.5 and Z = 1 to 30, per 100 cc of slurry, (b) at least a stoichiometric amount of sodium aluminate, and (c) at least 1% by weight of sodium hydroxide until zeolite A forms and recovering zeolite A. Sodalite which may have the formula Na6(AlO2)6(SiO2)6.2NaCl can be produced by carrying out the aforesaid process in the presence of sodium chloride.
Patent CA-1149673-A (CA)
Inventor: HUNTER JOHN
IPC: F04B19/22
Filed: 1980-07-17
Granted: 1983-07-12
Abstract: Abstract of the Disclosure A fluid operated pump for concrete and similar materials comprising a pair of piston-cylinder units connected to a concrete housing having a single valve for controlling the charging and discharging of the material.  The valve control element and the concrete housing are defined in a mating relationship for minimizing flow restrictions of the material moved through the housing.  Other efficiencies in the fluid circuit structures and arrangements are provided.
Patent CA-1132375-A (CA)
Inventor: CONRAD RAYMOND W
IPC: G01J1/52
Filed: 1980-07-22
Granted: 1982-09-28
Abstract: ABSTRACT OF THE DISCLOSURE     An irradiance analysis system which includes an array of square rods that are joined together and have a flat entrance end and a polished flat exit end through which visible light is transmitted to a Fresnel lens and focused to a particular area where the image focused is photographed so that when the various frames are developed they can be analyzed in a conventional film densitometer to yield quantative data on the temporal variation of laser beam irradiance distributions.
Patent CA-1182244-A (CA)
Inventor: IKEDA JUNJI
IPC: C08F299/00
Filed: 1980-07-31
Granted: 1985-02-05
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention relates to a coating compos-ition containing a bridge-polymerizing unsaturated compound having acryloyl groups and/or methacryloyl groups, and a photo-polymerizing starting agent and/or a heat-polymerizing starting agent.  The coating composition is applied to the surface of plastic article to provide good abrasion resistance, weather resistance, and the like.
Patent CA-1118251-A (CA)
Inventor: MONETTE WILLIAM A
IPC: H04N1/113
Filed: 1980-09-05
Granted: 1982-02-16
Abstract: &N 6680 OPTICAL SCANNING DEVICE               ABSTRACT OF THE DISCLOSURE           An optical scanning device for scanning a document to produce image signals related to the density of the image on successively scanned document areas includes a platen means for supporting a document and a surface of substantially uniform reflectivity extending along the edge of the platen means.  A bar of light is directed such that it strikes the document and the surface of substantially uniform reflectivity and moves across the document in synchronization with optical scanning of the document.  Light reflected from the surface of substantially uniform reflectivity is directed to a plurality of reference transducers which sense the position of the bar of light. A servo control loop, responsive to the reference transducers, positions a reflector during the scanning operation such that the area on the document being scanned is properly illuminated.
Patent CA-1154347-A (CA)
Inventor: RECKLESS FRANK
IPC: A61K8/81
Filed: 1980-09-03
Granted: 1983-09-27
Abstract: Abstract of the Disclosure The invention is a gel nail lacquer remover composed of a solvent for nail lacquer incorporated in a gel formed by reaction between a carboxypolymethylene having a molecular weight of not less than about 3,000,000 and a tertiary amine which has one alkyl group and two polyoxyethylene groups attached to the nitrogen atom.  The gel has the advantages of being convenient to use and of not leaving any gummy or adhesive residue on fingers or nails.
Patent CA-1147943-A (CA)
Inventor: BOUDOT BERNARD
IPC: C01B13/36
Filed: 1980-11-07
Granted: 1983-06-14
Abstract: A process for the manufacture of a polycrystalline garnet and to the corresponding monocrystal. The process comprises the following steps: (1) a solution containing the salts of the constituent cations of the garnet, in the proportions corresponding to the composition of the latter, is prepared; (2) corresponding hydroxides are co-precipitated by means of a base in order to obtain a co-hydroxide; (3) if appropriate, the co-hydroxide is left to age; (4) it is filtered off; (5) it is washed; (6) it is dried; and (7) it is then calcined at a temperature above the temperature for the formation of the desired garnet structure. The monocrystals obtained by Czochralski drawing of the polycrystalline garnets of the invention can be used, in particular, as substrates in magnetic bubble memory devices.
Patent CA-1168674-A (CA)
Inventor: ABBES CLAUDE
IPC: F16L23/10
Filed: 1980-11-25
Granted: 1984-06-05
Abstract: ABSTRACT OF THE DISCLOSURE           Pipe coupling comprising two flanges which can be fixed to the ends of the pipes and clamping means which bear on the flanges to sealingly connect the same, wherein the clamping means comprise a member located between the flanges and defining a passage providing a communication between the pipes and at least one movable member controlling the elongation of extensible means on the member located between the flanges to make same sealingly bear against the flanges, the movable member bearing on the rear face of the flanges to prevent the moving apart thereof during the elongation of the extensible means.
Patent CA-1147673-A (CA)
Inventor: OLMSTED JOHN H
IPC: B65D19/02
Filed: 1980-12-18
Granted: 1983-06-07
Abstract: PROTECTIVE CONTAINER                     Abstract of the Disclosure A transportable container for hazardous bulk materials which minimizes the risks of accidental spillage, comprising a closed, transportable weatherproof structure, formed by a solid walled pan and an overlapped protective cover, positioned on a pallet and surrounding two or more separate sealed containers of said material.
Patent CA-1152624-A (CA)
Inventor: FUKUZAWA TADASHI
IPC: H01S5/026
Filed: 1981-01-22
Granted: 1983-08-23
Abstract: Abstract:    Disclosed is a semiconductor laser device comprising a semiconductor assembly which serves to effect laser oscillation and in which first, second and third semiconductor layers are successively stacked on a predetermined semiconductor body.  At least the first and third semiconductor layers are small in the refractive index relative to the second semiconductor layer and large in the forbidden band gap relative thereto.  An entity is provided to spread depletion regions within at least a part of a current path for effecting laser oscillation and in a manner to intersect with the current path.  A small semiconductor laser device capable of fast modulation is realized.