baber/WOPTO huggingface dataset:
Patent CA-1125423-A (CA)
Inventor: DE CREMOUX BAUDOUIN
IPC: H01L31/12
Filed: 1978-10-17
Granted: 1982-06-08
Abstract: ABSTRACT OF THE DISCLOSURE:               A diode for both emitting and detecting light of predetermined wavelength.  The diode comprises a substrate and four layers.  The substrate is made of a semiconductor material having a first conductivity type.  The first semiconductor layer has the first conductivity type, is doped less heavily than and is disposed on the substrate.  This first layer has a forbidden band transparent to the said light.  The second layer, disposed on the  first layer, is made of a semiconductor material different from the semiconductor material of the first layer and   is doped in the first conductivity type or in a second conductivity type opposite to the first, less heavily than the substrate.  This second layer has a forbidden band suitable for absorbing and emitting the light of predetermined wavelength.          The third layer, disposed on the second layer, is made of a semiconductor material different from the semiconductor material of the second layer, and is doped in a second conductivity type opposite to the first conductivity type less heavily than the substrate.  This third layer has a forbidden band having a different value than the forbidden band of the second layer, the third layer forbidden band being transparent to the said light.  The fourth layer, disposed on said third layer is made of a semi-conductor material different from the semiconductor materials of the second and third layers, and is doped in the second conduc-tivity type less heavily than the substrate.  This fourth layer has a forbidden band of different value than the second and third layers, the fourth layer forbidden band being transparent to the light, the fourth layer including a central region and a peripheral region.
Patent CA-1115112-A (CA)
Inventor: FOX LYLE
IPC: F25D1/00
Filed: 1978-10-30
Granted: 1981-12-29
Abstract: COLD AIR FLOW CONTROL APPARATUS            ABSTRACT OF THE DISCLOSURE:      An apparatus to circulate and regulate the flow of cold air from the exterior of a building having a cold room to the cold room to supplement the refrigeration of the cold room provided by the usual refrigeration equipment.  Duct work is provided to carry cool air from the exterior of the building to the cold room, and further duct work is provided to exhaust air from the cold room.  One or more blowers operate in conjunc-tion with the duct work to circulate the air through the duct work and through the cold room.  The blowers are controlled by temperature controls such that the apparatus can operate only when the temperature outside is below a high temperature limit, and does operate when the temperature in the cold room approaches or exceeds an upper temperature boundary to introduce cold air into the room until a lower temperature boundary is reached.
Patent CA-1101470-A (CA)
Inventor: FOVARGUE ARTHUR G
IPC: H01H50/32
Filed: 1978-10-31
Granted: 1981-05-19
Abstract: 47,565 MAGNETIC CONTACTOR WITH LATCH                  ABSTRACT OF THE DISCLOSURE         An electromagnetic contactor characterized by stationary and movable contacts operable between open and closed positions by an armature of an electromagnet which is movable between energized and deenergized positions, and a latch for latching the armature in the energized position to hold the contacts in the closed position until intentionally released.
Patent CA-1130437-A (CA)
Title: Differential protection circuitry for electrical  devices
Inventor: FORFORD THORLEIF
IPC: H02H3/28
Filed: 1978-11-09
Granted: 1982-08-24
Abstract: 4/dr                                          58414-4 ABSTRACT OF THE DISCLOSURE         A differential protection circuit is responsive to measured current pulses generated upon the occurrence of external and internal faults within a protected device for emitting blocking and tripping signals respectively upon the occurrence of an external and an internal fault of the protective device:  The measured current pulses are rectified and level-sensing means in a stabilizing circuit is responsive to the rectified current pulses.  A stabilizing potentiometer is connected in series with the level-sensing means and a differential circuit is connected to the sliding terminal of the potentiometer.  Both the stabilizing circuit and the differential circuit include gating means such that the emission of tripping signals is blocked upon the emission of output signals of the gating devices in the stabilizing circuit; and tripping signals are emitted upon the emission of output signals from the gating devices in the differential circuit.          The differential protection circuitry may include fast-acting mechanical relays or electric logic circuitry.
Patent CA-1123754-A (CA)
Inventor: HRADEK RICHARD W
IPC: B01D15/00
Filed: 1978-12-08
Granted: 1982-05-18
Abstract: VARIABLE AREA MOLECULAR SIEVE CONTAINER     HAVING A THERMAL CONTROL SYSTEM                      ABSTRACT OF THE DISCLOSURE A fluid separator apparatus having a control member for allowing a source of pressurized fluid mixture to flow In a first direction through a bed of adsorption material to produce a product fluid and for allowing a purge fluid to regenerate the bed of adsorption material by flowing in a second direction substantially opposite to the flow of the fluid mixture. The bed of adsorption material has a variable cross-sectional area correspond-ing to a substantially uniform and optimum rate of adsorption of an element in the fluid mixture by the individual particles of adsorption material. in addition, a sensor controlled helter maintains the temperatures of the fluid mixture and the adsorption beds within a predetermined temperature range to assure that the rate of adsorption by the particles is not changed by temperature variations in the supply of pressurized fluid mixture and in the ambient environment.
Patent CA-1114022-A (CA)
Inventor: GOULD LARRIE A
IPC: H04B1/06
Filed: 1979-01-09
Granted: 1981-12-08
Abstract: RADIO RECEIVER ALIGNMENT INDICATOR            ABSTRACT OF THE DISCLOSURE      A predetermined frequency alignment signal and a white noise source signal are alternately switched through the intermediate frequency amplifier stage (IF) of the receiver being aligned.  A series connected integrating capacitor and tuning meter couple between the receiver's detector output and ground potential.    In operation, during the interval of white noise being applied to the IF the tuning meter is shorted and the capa-. citor is charged to a net voltage Vn which is representative of the center frequency of the IF.  When the alignment signal is applied to the IF, the tuning meter short is removed and a signal Vs appears across the capacitor-meter circuit, whereby the meter reading is indicative of Vs - Vn which represents relative receiver alignment.
Patent CA-1114845-A (CA)
Inventor: SANER KASPAR
IPC: G01L1/04
Filed: 1979-01-11
Granted: 1981-12-22
Abstract: A B S T R A C T     A mass and force meter, a frame, a load support connected to said frame, a measuring system with two dynamometers, a reference base and a force input, a load spring mounted between said frame and said load support, a measuring spring mounted between said load support and said force input, said measuring spring being at least ten times weaker than said load spring, said load spring and said measuring spring eliminating partly or completely force-reducing lever systems in mass meters and allowing, if requested, the line-arization of non-linear characteristics of several functions
Patent CA-1059746-A (CA)
Inventor: JACKSON JACK M
IPC: C09K8/08
Filed: 1979-01-26
Granted: 1979-08-07
Abstract: WATER LOSS REDUCTION AGENTS     Abstract of the Disclosure Starch derivatives have been found to be effective water loss control additives in clay-free wellbore fluids.  Generally the starch derivatives are starch ethers, starch esters and partially oxidized starch.  The starch derivatives can be added to the wellbore fluid in either the gelatinized or ungelatinized form.  Unlike ordinary unmodified starch, the starch derivatives are soluble in acids, stable in the presence of calcium chloride, do not undergo retrogradation and are stable at higher temperatures than unmodified starch.
Patent CA-1143009-A (CA)
Title: Probe for the measurement of magnetic  susceptibility
Inventor: BONNET JEAN
IPC: G01V3/10
Filed: 1979-02-23
Granted: 1983-03-15
Abstract: A PROBE FOR THE MEASUREMENT   OF MAGNETIC SUSCEPTIBILITY     Abstract of the Disclosure The probe comprises two inductance windings mounted in opposition and connected to an a.c. generator, a measurement winding placed at right angles between the two inductance windings and a measurement voltage detector.          A compensation winding is placed coaxially and symmetric-ally with the measurement winding in relation to the axis of the inductance windings, thus permitting enhanced sensitivity of the probe and a directional effect.          Potential applications include continuous recording of magnetic susceptibility along a vertical borehole wall and ore sorting on a conveyor belt.
Patent CA-1117844-A (CA)
Inventor: BECKER LARRY W
IPC: C02F5/14
Filed: 1979-03-28
Granted: 1982-02-09
Abstract: Abstract of the Invention The present disclosure is directed to oligomeric phosphonic acid derivatives which posses excellent chlorine resistance and acceptable calcium tolerance and which, at substoichiometric amounts, inhibit the formation of scale in aqueous mediums.  Additionally, the oligomers have been found to be quite active as dispersants for particulate matter contained in an aqueous medium.
Patent CA-1118848-A (CA)
Inventor: CONRAD RAYMOND W
IPC: H05H1/22
Filed: 1979-04-23
Granted: 1982-02-23
Abstract: ABSTRACT OF THE DISCLOSURE           Apparatus is described for the generation and confinement of plasma. This comprises a continuous wave laser for radiating energy as a beam to a focal plane, where an ignition device is provided to initiate a plasma when irradiated by said laser energy.  A magnetic field is also provided, disposed so as to restrict normal motion of the plasma up the laser beam.  A housing is provided to form an elongated chamber having a longitudinal axis along which the laser energy is directed to the ignition device.  The magnetic field is disposed circumferentially around a portion of the axis, to contain the plasma between the magnetic field and the focal plane.  Preferably, pressurizing apparatus are also provided for variably pressurizing the interior of said chamber.  Still more preferably, the magnetic field is created by a superconductive magnetic coil, and the intensity of the laser beam is varied to vary the temperature of the plasma.
Patent CA-1129397-A (CA)
Title: Hollow catalyst carrier and hollow  catalyst made of transition-alumina and  process for production thereof
Inventor: YAMADA KOICHI
IPC: B01J35/04
Filed: 1979-05-29
Granted: 1982-08-10
Abstract: HOLLOW CATALYST CARRIER AND HOLLOW CATALYST MADE OF TRANSITION-ALUMINA AND PROCESS FOR PRODUCTION THEREOF            Abstract of the Disclosure:  The invention relates to a hollow catalyst carrier and hollow catalyst made of a transition-alumina (e.g. y-alumina).  The catalyst carrier is a calcined product having a pipe-like or multi-cell structure and having a very large void ratio (i.e. not less than 3 %), a very large specific surface area (i.e. not less than 5 m2/g), a bulk density of 0.8 to 1.8 g/cm3, a compressive strength in the extrusion direction of not less than 20 kg/cm2, and at least one hole in the ex-trusion direction.  The carrier is produced by subjecting a powder containing a rehydratable alumina to an extrusion molding step, rehydrating the molded product and calcining it.          The hollow catalyst carrier has very good properties for carry-ing catalytically active components thereon and has very good mechanical strength.
Patent CA-1111272-A (CA)
Inventor: SNYDER DANIEL S
IPC: F16C11/08
Filed: 1979-06-01
Granted: 1981-10-27
Abstract: ABSTRACT OF THE DISCLOSURE         A ball joint construction having a ball-stud member with a ball portion and a shank portion and an open-ended socket member into which the ball portion is inserted.  An elastomeric covering is permanently bonded to both the ball member and a part of the shank portion to provide increased bond life and strength and then deformed for inserting in the open end of the socket thereby resiliently interconnecting the socket and ball members.  An additional rib or lip of elastomer is provided on the covering of the ball adjacent the shank which collapses into a continuous multiple curved pattern during insertion into the socket.  The rib provides for increased life of the elastomer by improved surface tension parameters and also keeps stones and other debris out of the open-ended portion of the socket.  A further bonding between the socket and elastomer after insertion provides a completely bonded system capable of accepting very substantial angular movement without slippage or pullout.  A lip is preferably formed by coining over the edge around the open end of the socket for further increasing the strength against stud pullout.
Patent CA-1120134-A (CA)
Inventor: BLOMBERG PETER E
IPC: F25B15/00
Filed: 1979-06-14
Granted: 1982-03-16
Abstract: ABSTRACT OF THE DISCLOSURE           An automatic control system for an absorption refrigerator in a vehicle, such as a recreational vehicle, which is connected to a motor-driven generator.  The refrigerator is operated alternatively by either 110 A.C. voltage, 12 volt D.C. voltage, or by gas.  If gas is only available, the refrigerator is automatically operated by that means, however, the ignition of the gas burner is prevented when the vehicle is stopped in a filling station and the generator ceases to operate.  The arrangement has means which delays the closing of a circuit through a control system after another circuit, including a heating cartridge, has been interrupted.
Patent CA-1129704-A (CA)
Inventor: OKAI SAKUO
IPC: G03F7/029
Filed: 1979-09-06
Granted: 1982-08-17
Abstract: ABSTRACT OF THE DISCLOSURE     A photopolymerizable composition and photosensitive elements produced therefrom are disclosed.  The photopolymerizable composition includes:  a) a monomer component, b) a polymer com-ponent, c) a photopolymerization initiator, and (c) an activator.          The monomer component contains at least one water soluble, mono-functional unsaturated ethylenic monomer or the combination of such a monomer and at least one polyfunctional unsaturated ethylenic monomer.  The polymer component includes a partially saponified water soluble, polyvinyl acetate polymer compatible with the monomer components.  The polyvinyl acetate polymer contains both acetyl and hydroxyl groups and has a polymerization degree of from 300-2000.  The degree of saponification of the polymer is desirably in the range of 65 to 99 percent.  The preferred photopolymerization initiators are acetophenone derivatives such as 2,2-dimethoxy-2-phenyl acetophenone, 2,2-diethoxy-2-phenyl acetophenone, 2,-2-diisopropoxy-2-phenyl acetophenone, benzoin alkyl, aryl, allyl or vinyl ethers, or benzophenone derivatives such as benzophenone, 2-methylbenzo-phenone, 2-methoxybenzophenone or 2,2'-dimethoxybenzophenone, which are compatible with the monomer component and the polyvinyl acetate polymer and are activatable by actinic light.  Finally, the activator is a phosphine derivative generally described by the formula:       wherein any of X, Y and Z are hydrogen, halogen, alkyl, alkoxy, aryl, vinyl, or allyl, although not more than one of X, Y and Z may be hydrogen.  It is especially preferred in the practice of the present invention that at least one of X, Y or Z in the phosphine derivative activator component be an aryl group.
Patent CA-1129171-A (CA)
Inventor: POL KENNETH J
IPC: B22D29/00
Filed: 1979-09-27
Granted: 1982-08-10
Abstract: D-2,608   C-3,044 Abstract of the Disclosure An acoustically enclosed apparatus for shaking out sand-cores from metal castings.  A plurality of percussive shakeout stations are spaced around the circumference of a turntable. The stations are separated one from the other and from their surroundings by an acoustical enclosure which rotates with the turntable and within a stationary enclosure.  The castings are loaded and unloaded through outwardly facing access openings in the rotatable enclosure as they become registered with an access port in the stationary enclosure. Shaking out is effected while the access openings are out of registry with the access port.  The sand collector beneath the stations attentuates the sound emitted from beneath the station.
Patent CA-1127667-A (CA)
Title: Perfluoroalkylalkylenemercapto group  containing non-ionic surfactants, process  for their manufacture and their use
Inventor: COOKE THOMAS W
IPC: C07C319/14
Filed: 1979-10-18
Granted: 1982-07-13
Abstract: Abstract of the Disclosure Fluorochemical surfactants of the formula   wherein Rf is perfluoroalkyl of 4 to 20 carbon atoms or perfluoroslkoxy-perfluoroalkyl of 4 to 20 carbon atoms, A is straight or branched chain alkylene of 1 to 10 carbon atoms which is unsubstituted or substituted by halogen, n is 1 to 50, R1 is hydrogen or alkyl of 1 to 4 carbon atoms and R2 is hydrogen or alkyl of 1 to 4 carbon atoms. The new surfactants are useful is aqueous and non-squeous systems.
Patent CA-1131812-A (CA)
Title: Procede d'epuration des eaux
Inventor: MOREAUD HENRI
IPC: C02F3/04
Filed: 1979-10-24
Granted: 1982-09-14
Abstract: Le procédé est du type selon lequel on fait percoler de haut en bas l'eau à traiter à travers un lit submergé et fixe de matériau filtrant granulaire avec insufflation, à niveau intermédiaire, d'un courant gazeux oxygéné ascendant.  Selon l'invention, les débits d'eau à traiter et de gaz oxygéné sont réglés de façon à satisfaire à un certain nombre de relations qui définissent une loi générale élargissant notablement le domaine de traitement connu au charbon actif.  Le lit, généralement à base de C actif, ou autre matériau granulaire approprié, peut être multicouches avec des couches inférieures de sable et/ou anthracite.  La commande de gaz oxygéné (air, oxygène, air ozonisé) est régulée par sonde de mesure.  Application du procédé au traitement d'eaux de surface ou de nappes en vue de les rendre potables ainsi qu'au traitement des eaux résiduaires comme eaux d'égouts ou industrielles.
Patent CA-1135876-A (CA)
Inventor: BARTKO JOHN
IPC: H01L21/322
Filed: 1979-12-28
Granted: 1982-11-16
Abstract: 46, 245 ABSTRACT OF THE DISCLOSURE            Irradiated regions are formed in materials such as  semiconductor bodies  by nuclear radiation where the irradiated regions are of a desired thickness, dosage and dosage gradient, a desired distance from a selected sur-face of the material.   A nuclear radiation beam from a given radiation source radiating particles with molecular weight of at least one (1) is provided that can penetrate the material through a selected surface to a depth greater than the maximum depth of the irradiated region from the selected surface.  A beam modifier is formed of a given material and non-uniform shape to modify the energy of the radiation  beam  on  transmission  therethrough  to  form a transmitted radiation beam capable of forming an irradi-ated region of a desired thickness and dosage gradient in the material a given distance from the selected surface on irradiation of the material through the selected surface with  the  transmitted  radiation beam.   The material  in which the desired irradiated region is to be formed is positioned with the selected surface thereof to be exposed to the radiation beam from the radiation source on trans-mission through the beam modifier.  The material is there-41               46,245 after irradiated through the beam modifier and through the selected surface with the radiation beam, preferably while the beam modifier and material are moved relative to each other  through  a  predetermined  motion,  to  form  in  the material an irradiated region of desired thickness, dosage and dosage gradient, a desired distance from the selected surface.  The irradiated region thus formed in semiconduc-tor  bodies  are  particularly  of value  in  changing  the electrical characteristics without substantial change of other electrical characteristics.
Patent CA-1126064-A (CA)
Title: Method and apparatus for the manufacture of fusecord
Inventor: AITKEN ROBERT M
IPC: C06C5/00
Filed: 1980-01-18
Granted: 1982-06-22
Abstract: Abstract: Method and apparatus for the manufacture of fusecord A method and apparatus for the manufacture of explosive fusecord the method comprising continuously advancing and convoluting a carrier tape in-to hollow tubular form, feeding a stream of explosive material into the tubular carrier tape to form an explosive core encased by the carrier tube and subsequently applying reinforcing materials around said carrier tube, said carrier tape being convoluted by passing through shaping guide means, the passage of the carrier tape through the guide means being assisted by pulling an auxiliary transport belt through the guide means, said transport belt being in frictional contact with said carrier tape.     The method facilitates higher fusecord production speeds by preventing stretching or rupture of the carrier tape.
Patent CA-1111663-A (CA)
Inventor: MESCHERYAKOV IVAN K
IPC: A01D89/00
Filed: 1980-01-24
Granted: 1981-11-03
Abstract: ABSTRACT OF THE DISCLOSURE In a pick-up of a farm machine, the crossbar of the frame which interconnects the frame side members is sectional, while  its components are hinge-interconnected at a joint thereof so as to swivel with respect to each other round the cross longitudinal axis.  The pick-up is useful in cutting down harvesting lossess concerned with the picking of various farm crops, especially in the case of complicated field contours.
Patent CA-1134304-A (CA)
Title: Deashing of coal by the oil agglomeration process
Inventor: MAINWARING DAVID E
IPC: C10G1/00
Filed: 1980-02-22
Granted: 1982-10-26
Abstract: ABSTRACT         A method of deashing coal wherein the coal is wetted with hydrocarbon liquid to form agglomerates and the hydrophilic agglomerates are then separated from a water and ash phase to yield deashed coal agglomerates.          The hydrocarbon liquid is then recovered from the coal agglomerates by a vacuum stripping in the absence of oxidizing gases with or without use of super heated steam.          Where super heated steam is used the removed hydrocarbon liquid is subsequently separated from the steam by cooling.   1a.
Patent CA-1158757-A (CA)
Title: Procede et dispositif de pilotage automatique d'un  vehicule-moteur le long d'une voie presentant des  declivites
Inventor: SALMON JEAN
IPC: B61L3/00
Filed: 1980-05-01
Granted: 1983-12-13
Abstract: L'invention a pour objet de diminuer le nombre d'informations à transmettre à un véhicule lors d'un ordre d'arrêt à un but. Selon l'invention, une vitesse fictive de référence supérieure à la vitesse maximale autorisée sur la voie est préalablement mise en mémoire à bord du véhicule. Une première balise émettant un premier signal simple d'ordre d'arrêt a un but et une seconde balise émettent un second signal simple sont disposées le long de la voie respectivement, la première à une distance connue du but, et la seconde à l'endroit précis ou une vitesse de freinage à effort constant est égale à la vitesse fictive de référencé. Un dispositif est prévu à bord du véhicule pour déterminer à partir de ces deux informations, la pente moyenne instantanée du trajet restant à parcourir et une vitesse corrigée en fonction de cette pente, vitesse à laquelle le véhicule est asservi. Application: pilotage automatique des métropolitains.