baber/WOPTO huggingface dataset:
Patent CA-1138155-A (CA)
Inventor: PRALL PAUL D
IPC: C03C8/04
Filed: 1981-03-09
Granted: 1982-12-28
Abstract: CORDIERITE CRYSTAL-CONTAINING GLAZE     Abstract A cordierite crystal-containing glaze for fine ceramics such as cordierite ceramics.  The glaze has an oxide composition comprising, SiO2                   66 - 75         wt.%          Al2O3                       13 - 22 MgO                          3 - 8 B2O3     2.5 - 7 Na2O + K2O                  .4 - 2.0 The above components should comprise at least 95%, and pre-ferably 96-99%, of the total.  The glaze can also include 0-2%          ZnO and 0-2% ZrO2.  Apart from colorants, the balance, if any, may comprise small amounts of other compatible compounds such as CaO, SrO, BaO, Cs2O and F2, up to a total of 3%; but the ratio of SiO2 + A12O3 + MgO to the sum of such other compatible compounds should be at least about 28:1.  Fe2O3 and TiO2, which are generally present as impurities in standard batch raw materials, are not harmful in amounts less than a total of 1.5%; in greater amounts, they begin to alter the color of the glaze.  Li2O should not be present in any amount greater than about .5%.  The glaze has good gloss and durability and is transparent in the absence of added pigmentation or refractory particles.
Patent CA-1176021-A (CA)
Inventor: LEMSTRA PIETER J
IPC: C08J5/18
Filed: 1981-05-29
Granted: 1984-10-16
Abstract: The invention relates to polypropylene-based plastic products, biaxially stretched below the melting point, wherein the plastic consists substantially of a mixture of 60-95 % by weight of a substantially crystalline propylene polymer and 5-40 % by weight of an ethylene-vinylalcohol copolymer, and to a process for making such products.          According to the invention an ethylene-vinylalcohol copolymer is used having a melting point which is at most equal to that of the pro-pylene polymer, preferably 0-20 K below the melting point of the propy-lene polymer.          The invention provides biaxially stretched polypropylene pro-ducts having an outstandingly good gas impermeability while retaining their good properties in respect of optical clarity, mechanical proper-ties and simplicity of production.
Patent CA-1126542-A (CA)
Inventor: LEE ROBERT K
IPC: B25H1/00
Filed: 1981-07-29
Granted: 1982-06-29
Abstract: ABSTRACT     The invention is a hand-held tool for quickly and accurately drilling vertical or horizontal holes into materials.          It comprises a portable hand-held power drill, a drill bit, and a sensor for continuously indicating during operation of the drill the amount of deviation of the drill bit from a vertical or horizontal position.
Patent CA-1172993-A (CA)
Inventor: NISHIMATSU SHIGERU
IPC: H01L21/311
Filed: 1981-09-09
Granted: 1984-08-21
Abstract: ABSTRACT OF THE DISCLOSURE         A microwave plasma etching system is disclosed which comprises a vacuum chamber for providing a dis-charge space and provided with an inlet for introducing a discharge gas containing a fluorine-containing gas, hydrogen and oxygen, magnetic field forming means for forming a magnetic field in the discharge space, microwave electric field forming means for forming a microwave electric field in the discharge space, and substrates holding means for holding substrates to be processed in the vacuum chamber. In the microwave plasma etching, the discharge gas containing fluorine, hydrogen with or without oxygen provides excellent etching almost free from side etching.
Patent CA-1163587-A (CA)
Inventor: RUDNICK LESLIE R
IPC: C10G1/04
Filed: 1981-10-19
Granted: 1984-03-13
Abstract: COAL LIQUEFACTION PROCESS    Abstract The invention is directed to the liquefaction of coal in the presence of lignin.
Patent CA-1186259-A (CA)
Title: Process for heating coal oil slurries
Inventor: BRAUNLIN WALTER A
IPC: C10G1/06
Filed: 1982-01-27
Granted: 1985-04-30
Abstract: PROCESS FOR HEATING COAL OIL SLURRIES                          ABSTRACT      Controlling gas to slurry volume ratio when heating a flowing coal-oil slurry and a hydrogen containing gas stream allows operation with virtually any coal to sol-vent ratio.  Controlling the gas to slurry volume ratio to achieve a gas holdup of about 0.4, and preferably 0.38, permits operation with efficient heat transfer and satis-factory pressure drops.  The critical minimum gas flow rate for any given coal-oil slurry will depend on numerous factors such as coal concentration, coal particle size dis-tribution, composition of the solvent (including recycle slurries), and type of coal.  Further system efficiency can be achieved by operating with multiple heating zones to provide a high heat flux when the apparent viscosity of the gas saturated slurry is highest.  Operation with gas flow rates below the critical minimum results in system instability indicated by temperature excursions in the fluid and at the tube wall, by a rapid increase and then decrease in overall pressure drop with decreasing gas flow rate, and by increased temperature differences between the temperature of the bulk fluid and the tube wall.  Appli-cants have further discovered that at the temperatures and pressures used in coal liquefaction preheaters the coal-oil slurry and hydrogen containing gas stream behaves essentially as a Newtonian fluid at shear rates in excess of 150 sec-1.  The gas to slurry volume ratio should also be controlled to assure that the flow regime does not shift from homogeneous flow (bubble, dispersed bubble, elongated bubble, and the like) to non-homogeneous flow (stratified, slugging, plug, and the like).  Although applicants have observed stable operations with a maximum gas holdup as high as 0.72, applicants prefer to operate with a gas holdup no greater than 0.68.
Patent CA-1189924-A (CA)
Inventor: ZUEST HARRY
IPC: H01R4/24
Filed: 1982-03-25
Granted: 1985-07-02
Abstract: ABSTRACT       Contact insertable in a metallized hole of a printed circuit card containing two ends        designed to project on both sides of the card in position of insertion of the con-tact and to facilitate the electric connection of any devices.          The contact includes a median part     joining the ends which assures the electrical connection of the contact with the,metallized interior surface of the hole and at the same time its mechanical retention in the hole.  The median part     comprises a spiral structure of a rectangular section, the verticles of which define the edges     of that spiral structure.
Patent CA-1189760-A (CA)
Inventor: OLSSON PER I
IPC: F16K11/00
Filed: 1982-04-01
Granted: 1985-07-02
Abstract: Abstract In a mixer tap with a housing, two outlet connectors branching from a mixed water passage are provided in the housing. One outlet connector is associated with a direct outlet and the other with a shower head. The mixer tap also comprises two closable regulating valves fox the flow of mixed water, one associated with each outlet connector. The regulating valves axe provided with a common control element (6). The control element fully opens the one regulating valve (6, 12, 14, 15) in one of two predetermined positions and shuts the other. The control element also fully opens the other regulating valve (6, 11-13) in the other predetermined position while shutting the one regulating valve at the same time. The control element shuts both regulating valves in an intermediate position. In this way, one obtains simplification in construction and operation when compared with a mixer tap having an automatic mixing valve arrangement and two independent regulating valves for the flow of mixed water.          Fig. 2.
Patent CA-1184022-A (CA)
Title: Use of surfactants to improve oil recovery during steamflooding
Inventor: ISAACS EZRA E
IPC: E21B43/24
Filed: 1982-04-27
Granted: 1985-03-19
Abstract: "USE OF SURFACTANTS TO IMPROVE OIL RECOVERY           DURING STEAMFLOODING" ABSTRACT OF THE DISCLOSURE An improvement is provided in an in situ steamflooding process for recovering oil from a subterranean, heavy oil-containing reservoir.  An organic sulfonate surfactant, for example a petroleum sulfonate surfactant, is injected with the steam into the reservoir. The steam-surfactant injection stream is introduced to the reservoir at a temperature in the range of about 180°C to 260°C.  The process may be practised in a single well or multi-well pattern using any of a continuous steam drive, steam soak or cyclic steam recovery pro-gram.  A substantial increase in oil recovery is achieved by this process, as compared to a steam-only injection scheme.
Patent CA-1194469-A (CA)
Inventor: BONALDI ANTONIO
IPC: C07J9/00
Filed: 1982-05-05
Granted: 1985-10-01
Abstract: ABSTRACT OF THE DISCLOSURE           Salts of cholic acids  such as chenodeoxicholic and ursodeoxycholic acid with trimebutyne in the molar ratio of 1:1 or 2:1 have a pharmacotherapeutic action, which,  as a whole, is no-t found in other drugs, and which makes them useful for the treatment of diskinesiae, biliary dyspepsiae, cholecystopathies, and for the normalization or the kinesis of the intestinal gastro-biliary tract.
Patent CA-1183310-A (CA)
Inventor: CHURCH PETER K
IPC: C09D5/00
Filed: 1982-05-05
Granted: 1985-03-05
Abstract: ABSTRACT Surfaces of inorganic or pigmented organic-substrates are rendered capable of repelling water and oil by rubbing a gelatinous highly hydrated metal oxide uniformly over the surface to virtual dry-ness and then applying an organic combining compound.
Patent CA-1176792-A (CA)
Inventor: KAEFER PETER
IPC: C08G63/00
Filed: 1982-05-06
Granted: 1984-10-23
Abstract: Abstract The new thermoplastic copolyester carbonates which are based on polybutylene glycols and hexahydrophthalic acid or trimethyladipic acid, as well as admixtures of copolyester carbonates of this type with known polycar-bonates are suitable for thermoplastic moulding compo-sitions, particularly where good stability to solvents, such as petrol, is required.
Patent CA-1188169-A (CA)
Inventor: HICKLING ROBERT
IPC: F02B23/08
Filed: 1982-05-17
Granted: 1985-06-04
Abstract: METHOD AND MEANS FOR STIMULATING COMBUSTION ESPECIALLY    OF LEAN MIXTURES IN INTERNAL COMBUSTION ENGINES            Abstract of the Disclosure Method and means are disclosed for stimu-lating combustion especially of lean mixtures in internal combustion engines.  For example, an ultra-violet lamp mounted in the combustion chamber of an engine directs radiation of wavelength exceeding 190 nm on the advancing flame front.  The radiation largely passes through the cool unburned mixture and is absorbed in disassociating oxygen molecules in the flame front thereby stimulating combustion of the flame and allowing the burning of exceptionally lean air-fuel mixtures.  Numerous features and alternative embodiments are disclosed.
Patent CA-1207867-A (CA)
Inventor: KLIMO ROBERT G
IPC: A61G5/10
Filed: 1982-05-21
Granted: 1986-07-15
Abstract: ELECTRIC WHEELCHAIR WITH IMPROVED CONTROL CIRCUIT             Abstract of the Disclosure The electric wheelchair includes a battery pack (A), a right drive motor  (B), a left drive motor  (C), and a control  circuit  for  controlling  the  amount  of  power supplied from the battery to the left and right control motors.   A  speed  potentiometer  (24)  and  a  direction potentiometer (26)  are  connected with  a joystick  (22) for  producing  a  selected  vehicle  speed  signal  and  a selected  vehicle  direction  signal,  respectively.   A right speed control circuit (E) and a left speed control circuit  (F)  receive  the  selected  vehicle  speed  and direction signals and control the right and left motors in  accordance  with  them.   Each  speed  control  circuit includes a reference signal circuit  (90) which receives the  selected  vehicle  speed and  direction  signals  and produces a reference signal whose magnitude varies with the  speed  selected  for  its  motor.   The  voltage  and current across the armature of the motor are detected as measures  of  the  motors  actual  speed.   A  comparing circuit (92)  compares the actual speed as determined by the armature voltage and current with the selected speed as denoted by their reference signal.  Specifically, it subtractively  combines  the  armature  voltage  and  the reference signal to produce a first difference signal. Further,  it subtractively combines the first difference signal with  the  armature  current  signal  to  produce  a speed error reference signal.  The speed error reference signal controls  a  variable power  regulator  (94)  which varies the amount of power supplied to the motor in a manner  which  tends  to  cause  the  actual  and  selected speeds to match.
Patent CA-1188091-A (CA)
Title: Dispositif pour le traitement de surfaces de toles  galvanisees en atmosphere confinee
Inventor: WANG ROBERT
IPC: C23C2/26
Filed: 1982-06-08
Granted: 1985-06-04
Abstract: Dispositif qui comprend: un ventilateur (20) dont l'aspiration est reliée à un distributeur de poudre (28), de zinc de préférence, et dont le refoulement aboutit à une buse de projection disposée en regard de la bande de tôle (10) en défilement continu, en provenance du bain de galvanisation et recouverte de zinc non encore cristallisé, et un caisson constitué de deux carters (12-12') symétriques par rapport à la bande de tôle et délimitant entre eux un passage sensiblement vertical dans lequel circule la bande, chaque carter comportant ladite buse de projection (16-16', respectivement) raccordée au refoulement du ventilateur, et des fentes de reprise (18-18') disposées respectivement à la partie supérieure et à la partie inférieure de chaque carter, ces fentes de reprise étant raccordées à l'aspiration du ventilateur, ce dispositif étant caractérisé en ce qu'il comporte des moyens (30-30' ; 32-32') assurant l'étanchéité, par rapport à l'atmosphère extérieure et par rapport aux autres parties internes de l'installation, du passage entre les deux carters du caisson dans lequel circule la bande de tôle.
Patent CA-1150819-A (CA)
Title: Subscription television apparatus and methods
Inventor: THOMPSON JOHN R
IPC: H04N7/171
Filed: 1982-06-24
Granted: 1983-07-26
Abstract: ABSTRACT    Subscription apparatus and methods wherein an encoder begins inversion of a video signal during the last horizontal trace line of a randomly selected vertical interval and continues to invert trace lines in the following field of the video signal.  The encoder also suppresses the amplitude of randomly selected horizontal blanking pulses only during fields of the video signal while maintaining unaltered the absolute amplitude differential between the horizontal blanking pulses and associated horizontal synchronization pulses. A decoder reinverts trace lines of the field following detection of an inverted last horizontal trace line of a vertical interval.  The decoder also selectively rebiases the video signal to restore the horizontal blanking pulses upon detection of a suppressed amplitude during the front porch of a horizontal blanking pulse.  Reinversion of the trace lines and rebiasing of the blanking pulses is achieved by selective reference biasing of a video modulator circuit in the decoder.
Patent CA-1166023-A (CA)
Inventor: JOHNSON STANLEY J
IPC: A01D43/06
Filed: 1982-06-28
Granted: 1984-04-24
Abstract: IMPROVED SPOUT CONTROL SYSTEM   Abstract of the Disclosure An automatic control system operates to control the spout position on a forage harvester as a function of the position of a crop-receiving wagon and as a function of the relative spout-wagon position.  The system includes wagon and spout angle sensors and a variable gain error amplifier for generating an error signal representing the difference therebetween.  The gain of the error amplifier is modified according to changes in the wagon position to provide a wagon position dependent amount of free play in the spout-wagon relative position.
Patent CA-1190450-A (CA)
Inventor: LLENADO RAMON A
IPC: C11D17/06
Filed: 1982-07-13
Granted: 1985-07-16
Abstract: FOAMING SURFACTANT COMPOSITIONS               Abstract of the Disclosures An agglomerated light-duty detergent granule composition containing an alkylpolysaccharide surfactant, an alkylbenzene sulfonate cosurfactant, an alkylpolyethoxylate sulfate cosurfactant and a water soluble inorganic salt.
Patent CA-1185954-A (CA)
Inventor: HATFIELD W ROBERT
IPC: C22B11/00
Filed: 1982-08-11
Granted: 1985-04-23
Abstract: ABSTRACT OF THE DISCLOSURE       Improved recovery of platinum lost from the catalyst gauze in a nitric acid plant is obtained by using palla-dium containing recovery gauzes configured to enhance the mass transfer characteristics of the system.
Patent CA-1194516-A (CA)
Inventor: ZEISKY ANDRE L
IPC: B42D3/14
Filed: 1982-08-11
Granted: 1985-10-01
Abstract: ABSTRACT OF THE DISCLOSURE      A clip-on bookmark for finding a place in a book is disclosed wherein a substantially planar book marking member has two opposed covers with at least one edge portion with in-dicia, such as advertising message, associated with at least a portion of the covers.  Slot means is formed by the marking member along the edge portion and means for removably fasten-ing the marking member to the book is received by the slot means.  The incicia may be imprinted directly onto the covers or may be contained on means for receiving the indicia which is laminated to the covers, which may be of transparent, semi-rigid material, such as vinyl plastic.  The covers may also form a pocket means for removably holding a card on which the indicia is contained.  The fastening means comprises oppo-sitely positioned first and second legs joined at a reverse bend and form an open side opposite the reverse bend.  The first leg is mounted in the slot and the second leg is posi-tioned outside the marking member.  The legs are spring biased one against the other so that when the spine of the book or pages of the book are inserted between the second leg and the marking member, the bookmark is held in position in part in the book by the bias action.
Patent CA-1150937-A (CA)
Inventor: OETIKER HANS
IPC: F16L33/02
Filed: 1982-08-30
Granted: 1983-08-02
Abstract: Abstract A clamp structure consists of a clamping band having open ends that are mechanically interconnected by outwardly extending hooks in an inner band portion operable to engage in corresponding apertures provided in an outer band portion.  The clamp structure includes a device for tightening the clamping band about an object to be fastened.  The invention is characterized by a tongue at a free end of the inner band portion.  This tongue is operable to engage into a tongue-receiving slot located at least within the area of an outwardly extending step-like portion provided in the outer band portion.  This arrange-ment assures a substantially gap-free and stepless transition in the circumferential direction from the inner band portion to the ring-like configuration of the clamp structure defined by the clamping band upon tightening of the clamp structure.
Patent CA-1193270-A (CA)
Inventor: KAY IAN T
IPC: C07D409/12
Filed: 1982-09-03
Granted: 1985-09-10
Abstract: Abstract of the Disclosure Compounds of the formula (I)   wherein R1 is optionally substituted phenyl, or heterocyclyl; X is a 5-membered hetero aromatic ring linked through a ring nitrogen atom; and Y is CN,  CSNH2, or an ester or amide group.  The compounds are useful as herbicides and fingicides.
Patent CA-1192581-A (CA)
Inventor: GERKEN WILLIAM G
IPC: G03G21/00
Filed: 1982-09-22
Granted: 1985-08-27
Abstract: ABSTRACT   A document handling apparatus for a duplicating machine or copier is disclosed and includes a turnaround roller arranged between an exposure platen for the copier and a document sheet supply tray for directing document sheets fed from the tray back into the tray in an inverted orientation when occasions arise for the inversion. One or more occasions may arise and be initiated automatically depending upon a selected mode of duplication or when an odd number of passes of a document set of sheets are necessary to complete a reproduction run. Other occasions may be operator selected for various reasons such as when pre-printed or pre-punched copy sheets are being processed.
Patent CA-1179050-A (CA)
Inventor: WELLS WILLIAM E JR
IPC: H01S3/09
Filed: 1982-09-28
Granted: 1984-12-04
Abstract: COLLISION LASER                         ABSTRACT Electromagnetic radiation (10) is provided in a gas mixture (121 including helium in the X(1) state and nitrogen in the Y(1) state.  The helium is pumped to excite a high population density of its atoms from the X(1) state to the X(2) state; and photons (15) of suitable frequency are injected into the mixture (12) to excite, via a three-body radiative collision of an atom of X(2) with a molecule of Y(1) and a photons (15): a high population density of molecules of the nitrogen from the Y(1) state to the Y(3) state, followed by a substantially simultaneous return of a substantial portion of the excited helium atoms to the X(1) state and a substantial depopulation of the Y(3) state of the nitrogen, causing the molecules thereof to drop to the lower energy Y(2) state, thereby stimulating the emission from the nitrogen of two photons (10) at the same wavelength for each absorbed photon (15), and thus providing a total quantity of photon emission (10) with sufficient gain for amplifica-tion of electromagnetic radiation (10), and finally resulting in the depopulation of the molecules in the Y(2) state by autoionization.
Patent CA-1183948-A (CA)
Inventor: YAMAMOTO MASANOBU
IPC: G11B7/128
Filed: 1982-09-29
Granted: 1985-03-12
Abstract: LIGHT MODULATING APPARATUS                 ABSTRACT OF THE DISCLOSURE         A light modulating apparatus for use with a recording apparatus for recording an information signal on a recording medium includes a light source and an acousto-optic modulator for modulating light emitted from the light source in response to a first electrical signal and thereby producing a modulated light signal for acting on the recording medium.  Additionally, the apparatus includes an information signal source for providing an information signal, a high frequency oscillator for producing a carrier signal, a signal modulator for modulating the carrier signal by the information signal and providing therefrom the first electrical signal, and a photo-detector for detecting the modulated light signal and producing in response thereto a second electrical signal.  The apparatus further comprises a peak-holding circuit for holding substantially a peak value of the second electrical signal, a comparator for comparing the peak value of the second electrical system with a reference signal and providing a corresponding error signal, and an amplitude modulator for controlling the amplitude of the carrier signal in accordance with the error signal.     . .
Patent CA-1194906-A (CA)
Inventor: GILLEMOT LASZLO
IPC: F16B12/44
Filed: 1982-10-13
Granted: 1985-10-08
Abstract: ABSTRACT            CLAMPING ELEMENT FOR THE RELEASABLE FASTENING OF SPATIALLY ARRANGED, OR PARALLEL BARS, TUBES AND SIMILAR OBJECTS       The clamping element for the releasable fastening of spatially arranged or parallel bars, tubes and similar objects has a basic body comprising at least one fixing hole and two or three, but in given case several inlet holes for each fixing hole, penetrating the fixing hole, parallel with and/or by-passing each other, and tensioning insert arranged in the fixing holes. The tensioning insert has recesses corresponding to the penetrations and it is formed as to allow its tensioning in axial direction.          The basic body is preferably spherical, cylindrical or prismatic.