baber/WOPTO huggingface dataset:
Patent CA-1096877-A (CA)
Title: Preparation of organic sulfone compounds
Inventor: CHAN JOHN K
IPC: C07C317/28
Filed: 1978-03-21
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE An improved process for preparing an organic sulfone compound by oxidizing the corresponding sulfide compound with an aqueous peracid solution.
Patent CA-1104394-A (CA)
Inventor: OESTREICH ULRICH
IPC: G02B6/44
Filed: 1978-06-22
Granted: 1981-07-07
Abstract: ABSTRACT OF THE DISCLOSURE         In a light-wave conducting cable, the free space be-tween the sheath and the light-wave conductor is filled with a substance which is fluid when introduced, but which, by subsequent cross-linking, assumes a resilient, no longer fluid, consistency.  Materials suitable for this purpose are silicone resin, polyester resin, polyurethane rubber or expanded poly-styrene.  By this means the cable is made watertight in the longitudinal direction.  The material, after cross-linking, will not flow from the ends of the cable, but does still allow movement of the conductor within the casing.
Patent CA-1114496-A (CA)
Inventor: JANSSEN PETER J H
IPC: H04N5/14
Filed: 1978-08-15
Granted: 1981-12-15
Abstract: ABSTRACT:         Multi-gun colour television display appa-ratus having for each gun an identical beam current reference level control system wherein the relative position of a reference level in the video signal and a setting voltage of the electron guns are perio-dically shifted for obtaining for the control system outside the measuring periods a coincidence of the reference level in the video signal and the cut-off point of each of the electron guns for a proper colour rendition at a low brightness.
Patent CA-1111458-A (CA)
Inventor: NICHOLLS OSWALD C J
IPC: A63B69/38
Filed: 1978-08-23
Granted: 1981-10-27
Abstract: A B S T R A C T     Games practice device having two upright spaced poles and an elastic line formed in three sections extending from a common junction.  Ends of two sections are formed into loops engaged around cylindrical surfaces of end connectors which provide couplings to the upper ends of the poles.  A ball is suspended from the third line section.  The line sections are formed from a single length of elastic material, knotted to form the three line sections.  The poles have apertured outward peripheral flanges at the lower ends so that hooked stays can be engaged at one end in the apertures and can be pressed at the other ends into a ground surface to hold the poles upright.
Patent CA-1116157-A (CA)
Title: Granular activated carbon manufacture from  sub-bituminous coal treated with dilute inorganic  acid: direct activation method
Inventor: MURTY HARI N
IPC: C01B32/384
Filed: 1978-10-10
Granted: 1982-01-12
Abstract: GRANULAR ACTIVATED CARBON MANUFACTURE FROM   SUB-BITUMINOUS COAL TREATED WITH DILUTE INORGANIC ACID:  DIRECT ACTIVATION METHOD                Abstract of the Disclosure Granular activated carbon is manufactured from sub-bituminous coal by crushing and screening the as received coal containing about 10 to about 25% moisture by weight to produce 8/30 mesh granules, treating the granules with a dilute aqueous solution of inorganic acid at a concentration from about 1 to about 25% by weight to reduce the volatile content and thereby increase the fixed carbon content, the particular concentration being selected to provide the desired activity and porosity of the activated carbon, comprising: mixing the granules with the acid, washing off the acid, and drying the granules at least partially to a moisture content below about 25% by weight.  The granules are mixed with from 0 to about 15% by weight of coal tar pitch.  The so treated granules are ground to form fine powder of not less than about 60% by weight -325 mesh, preferably more than about 55% by weight -325 mesh, which is compressed into shapes, such as pellets or thin corrugated sheets under high pressure and then granulated to reform 6/20 mesh granules.  These reformed granules are then directly activated, without prior charring and devolatilization, by directly heating to and at a temperature higher than the devolatilizing temperature in an atmosphere containing a gaseous activating agent.  To produce hard granular activated carbons suited for water and waste water applications where the preferred properties are 900 minimum Iodine number, 200 minimum Molasses number, more preferably, 950 Iodine number, 220 Molasses number or higher and Abrasion number of at least 70 or higher, a lower acid concentration from about 1 to about 12% by weight, preferably from about 2 to about 5% by weight, is employed for acid treatment in the process.  To produce hard granular activated carbons suited for gas and air purification applications where the preferred properties are 1,000 minimum Iodine number, a very low Molasses number, i.e., less than 200, more preferably 1,050 Iodine number and Molasses number of about 180 and a minimum carbon tetrachloride number of 50, more preferably 60, a relatively high acid concentration from 12 to about 25% by weight, preferably about 15 to about 25% by weight, is employed for acid treatment in the process.
Patent CA-1114535-A (CA)
Inventor: ASMUS JEAN-PIERRE
IPC: H04N5/59
Filed: 1978-10-11
Granted: 1981-12-15
Abstract: ABSTRACT:                           To prevent display screen burn if a picture having, for example, bright lines or other picture components remains stationary for a long period of time, a video circuit is examined to detect how lone the information has not been changed. If a predetermined time limit is exceeded the picture bright-ness is limited to a sufficiently low average value, if so desired to zero brightness, by means of one or more protection switches.                            A number of embodiments are described.
Patent CA-1094602-A (CA)
Inventor: JACKSON THEODORE A
IPC: F41H5/22
Filed: 1978-10-13
Granted: 1981-01-27
Abstract: ABSTRACT OF THE DISCLOSURE      A hatch for an armored vehicle having a viewing block integral therewith to be moved with the hatch as the hatch is opened and closed.  The hatch is mounted for guided movement on a downwardly sloping surface of the armored vehi-cle so as to move down and away from the hatch opening to allow viewing from the hatch opening downwardly over the opened hatch.  The opening and closing guides include a three-point roller guide rail support configured to allow the weight of the hatch to be carried by the rollers after an initial upward movement of the hatch from compressive engage-ment with a peripheral seal installed about vehicle openings and thence slid downwardly on the guide rails away from the opening.  The three-point roller guide rail support provides for effective guidance of the hatch movement throughout its range of opening and closing movements and includes two sup-port arms secured to the hatch interior and extending into the hatch opening carrying two of the rollers and a third roller mounted to a hatch exterior surface guided in a guide rail mounted on the surface of the vehicle.  A locking pin arrangement is provided to secure the hatch in the open and closed position, while clamping hooks are utilized to hold the hatch down securely on the peripheral seal.  The hatch design is particularly adapted to cover the vehicle driver's station with a two-position driver seat utilized for viewing either through the viewing blocks with the hatch closed or at a higher point with the driver's head positioned through the hatch open-ing.
Patent CA-1096116-A (CA)
Inventor: LUPKE GERD P H
Filed: 1978-10-31
Granted: 1981-02-24
Abstract: ABSTRACT OF THE DISCLOSURE           In order, in the molding of corrugated thermoplastic tubing, to overcome the disadvantage that pressurized air which is supplied to a zone within the tube of thermoplastic material as it is extruded from an extrusion head into the entrance of a tubular mold tunnel may tend to cause rupturing of the tube at the area immediately adjacent to the extrusion head where the tube is unsupported by the wall of the tubular mold tunnel the pressurized gas is supplied at a low pressure to a first zone within the tube of thermoplastic material to support the tube against the wall of the tunnel, and press-urized gas at a higher pressure is supplied to a second zone within the tube to urge the tube outwardly into the corruga-tions of the tubular mold tunnel.  A first sealing arrangement separates the first zone from the second zone which is disposed downstream of the first zone, and a second sealing arrangement defines the downstream end of the second zone.
Patent CA-1116487-A (CA)
Inventor: TSUTSUMI SABURO
IPC: F02F1/42
Filed: 1978-11-20
Granted: 1982-01-19
Abstract: ABSTRACT OF THE DISCLOSURE    An extra induction passage extends to an intake port for each combustion chamber to induct air, fuel or recirculated exhaust gas by utilizing vacuum in the intake port.  This passage terminates at a jet-producing nozzle which is located near the end of a valve guide for an ordinary intake valve and directed towards a peripheral region of the inlet opening of the combustion chamber.          Preferably, the extra induction passage extends outside of the valve guide, and a valve which acts in synchronism with the intake valve is provided to this passage or the nozzle.  A gas jet from the nozzle, particularly under low-load conditions, promotes homogenization of a com-bustible gas mixture and causes a turbulent or swirling motion of the mixture in the combustion chamber, so that combustion proceeds rapidly and smoothly even though the mixture comprises large excess air or large amount of exhaust gas.
Patent CA-1129562-A (CA)
Inventor: PICUNKO THOMAS
IPC: A61B5/0275
Filed: 1978-11-21
Granted: 1982-08-10
Abstract: ABSTRACT OF THE DISCLOSURE          An automated method and improved device provide a measurement of blood flow through the heart by the detection and analysis of radioactivity emitted by a radioactive tracer introduced into a patient's bloodstream.  Real time, cardiac cycle by cardiac cycle informatiom is processed and displayed to provide diagnostically useful information on an essentially ongoing basis as the patient is being tested.
Patent CA-1109307-A (CA)
Title: Method and device for mixing-demixing optical beams for transmission on optical fibres
Inventor: DI VITA PIETRO
IPC: G02B6/42
Filed: 1979-02-08
Granted: 1981-09-22
Abstract: ABSTRACT         In the transmission of signals on multimode optical fibres, wherein light beams of different wavelengths are col-lected into a single composite beam to be transmitted, each of the monochromatic light beams is collected into the compo-site beam by means of a mixing device constructed to minimize optical losses.  The mixing device is a transparent body having two components of the same refractive index for the wavelength of the particular monochromatic beam and different refractive indices for the wavelengths of the composite beam, the respec-tive angles of incidence of the beams upon the separation surface of the components of the transparent body being such that the monochromatic beam is transmitted without deflection along a straight line path and the composite beam is totally reflected along said path.  Conversely, a composite beam is split into its monochromatic components by one or more such bodies according to the number of components to be separated.
Patent CA-1116734-A (CA)
Inventor: SIMOKAT FRANK L
IPC: H04Q5/24
Filed: 1979-02-14
Granted: 1982-01-19
Abstract: ABSTRACT OF THE DISCLOSURE A unit adapted to be connected to the tip party's subscriber's drop in a two-party line without requiring access to or rewiring of the tip party's telephone and having interconnected ringer isolator and ANI mark circuits.  The ringer isolator and the ANI mark circuits may also be used individually.
Patent CA-1129626-A (CA)
Inventor: GRAHAM TOMMY E
IPC: B01D53/22
Filed: 1979-03-19
Granted: 1982-08-17
Abstract: ABSTRACT OF THE DISCLOSURE       Processes are disclosed for separating at least one gas from a gaseous feed mixture containing at least one other gas comprising passing the gaseous feed mixture to at least two permeator stages in series.  Each permeator stage contains a separation membrane which has a feed side and a permeate exit side and exhibits selective permeator of the at least one gas as compared to the permeation of the at least other gas of the gaseous mixture.  A total pressure differential is maintained across the thickness of the separation membrane in each permeator stage to provide a driving force for the permeation of the at least one gas across the separation membrane.  The ratio of total pressure on the feed side to total pressure on the permeate exit side of the separation membrane for at least one permeator stage is least than the ratio of total pressure on the feed side to total pressure on the permeator exit side of the separation membrane for at least one subsequent, i,e., downstream, permeator stage.  The at least one gas of the gaseous feed mixture permeates through the membrane, and a permeating gas containing the at least one gas is obtained on the permeator exit side of each of the permeator stages.  Between permeator stages, the non-permeating gas from one permeator stage is passed to the feed side of the next permeator stage.  In one practical aspect, the process for separating at least one gas is employed to treat an ammonia synthesis purge stream from an ammonia synthesis loop.  The separation membrane in the permeators is selective to the permeation of hydrogen as compared to the permeation of inert contaminants such as methane and argon. A hydrogen-containing permeate is obtained, and the permeate from at least one permeator stage is recycled to the ammonia synthesis zone in the ammonia synthesis loop.
Patent CA-1138898-A (CA)
Inventor: SHERWIN MARTIN B
IPC: C07C33/22
Filed: 1979-03-21
Granted: 1983-01-04
Abstract: Abstract of Disclosure Mixtures of B-phenylethyl alcohol and B-phenylethyl acetate are prepared by homologation of mixtures containing benzyl alcohol, benzaldehyde benzyl acetate, and dibenzyl ethers in the presence of a cobalt catalyst. The feedstock may be obtained by acetoxylation of toluene followed by hydrolysis, or alternatively, by oxidation of toluene to benzaldehyde followed by reduction to benzyl alcohol . Components in the reactor effluent, e.g., dibenzyl ethers, may be recycled to suppress by-product formation and increase the overall yield of the process.
Patent CA-1112853-A (CA)
Inventor: WADA OSAMU
IPC: D01F6/62
Filed: 1979-03-26
Granted: 1981-11-24
Abstract: A LINEAR CRYSTALLINE TEREPHTHATLATE POLYESTER YARN         AND TEXTILE GOODS MADE THEREFROM               ABSTRACT OF THE DISCLOSURE       Novel polyester filamentary yarn is provided having (a) a fineness of 0.9 denier per filament or less, (b) an amorphous orientation in the range of 30% to 70% and (c) a negative .epsilonØ2 where said .epsilonØ2 is a structural integrity parameter. The yarn possesses improved properties relating to heat-setting, raising, dimensional stability and   twist resistance.  The yarn finds its wide range of usage, for example, silky fabrics with an excellent fullness, pliability and liveliness, raised fabrics with thermally stabilized fluffs protruding straight-forwardly and an extremely soft hand, and uniformly creped fabrics with an improved surface contour are obtained therefrom.
Patent CA-1099157-A (CA)
Inventor: PLUNKETT LARRY D
IPC: B25C1/04
Filed: 1979-05-10
Granted: 1981-04-14
Abstract: ABSTRACT OF THE DISCLOSURE         A warning system for pneumatic fastener driving tools that acceptable bumper deterioration has been exceeded thereby to warn against further use of a tool prior to replacement  of the bumper.  A piston carrying a driver blade moves from an upper position of rest to lower fastener driven positions.          The piston sealingly engages the cylinder wall via a sealing ring.  As the bumper deteriorates, the piston moves to lower and lower fastener driven positions.  When the piston reaches a predetermined lower position, the effectiveness of the sealing ring is impaired, as by engagement with a notch or edge which tends to destroy or dislodge the sealing ring.          This allows high pressure air to escape past the sealing ring to signal that the bumper should be replaced, as by seriously reducing the effectiveness or operability of the tool or as by producing an audible signal by the escaping high pressure air, or both.
Patent CA-1126317-A (CA)
Inventor: RAVELLI SANTO E
IPC: F27B3/08
Filed: 1979-07-24
Granted: 1982-06-22
Abstract: ABSTRACT OF THE DISCLOSURE         A furnace is disclosed for extracting metals of rela-tively high volatility from compounds containing oxides of metals.          The furnace provides uniform heating for the oxides in solid block form together with temperature and pressure control so that the dross does not melt.  The furnace includes a lower portion having an insulated lining, an upper bell shaped portion joined to the lower portion to form an enclosed sealed chamber, the upper portion forming a condensation surface for metals, means for ex-tracting heat from the upper portion, and means for controlling pressure within the sealed chamber.  The improvement comprises an electrical heating conductor within the lower portion spaced apart from the insulated lining, the heating conductor having spaces to hold the compounds in a solid compressed form and transfer sub-stantially uniform heat to the compounds in the spaces
Patent CA-1104454-A (CA)
Inventor: SARGENT CLARENCE
IPC: E04H15/22
Filed: 1979-07-31
Granted: 1981-07-07
Abstract: A B S T R A C T            An air-supported shelter for covering swimming pools, warehousing, greenhouses, recreation areas, climate control, pouring cement foundations and the like uses. The shelter system includes an inflatable enclosure and a blower assembly for inflation thereof. The enclosure is attached to a base by a plurality of anchors which hold a cable disposed ina hem forming the lower portion of the enclosure. The cable is connected to a tautening device by means of which an air-tight seal between the enclosure and the base is attained. The entire shelter system with the enclosure in collapsed state may be placed in a housing for storage or shipping purposes.
Patent CA-1132515-A (CA)
Inventor: DICKSON THOMAS D JR
IPC: B02C9/00
Filed: 1979-08-03
Granted: 1982-09-28
Abstract: Rotary Foodstuff Mill Abstract A rotary mill for milling particulate material is described.  The preferred embodiment of the mill comprises a housing  ; a rotor   and a stator  axially aligned and spaced within the housing, each of which has concentric rows of circumferentially spaced tapered plane-sided blades             extending from one of its faces, the rows of the rotor and stator being interposed between each other and radially spaced, with the radially innermost row being on the rotor and having a blade spacing at least equal to the maximum nominal particle size of the material, and the outermost row being on the stator and having a blade spacing less than the innermost row and at least equal to the desired maximum nominal particle size of the milled material; a material inlet  in the housing that opens into the axial space between the rotor and stator inward of the innermost row; a pneumatic feed regulating means  that mixes air with the feed entering said axial space and thereby controls the feed rate and milled material particle size; a milled product outlet in the housing located radially outward of the outer-most row; a receiving pan   for collecting milled product; a cyclone separator   in the receiving pan for separating entrained milled product; and an electric motor   whose driving shaft is connecthd to the rotor.
Patent CA-1130525-A (CA)
Title: Materiau composite polyfluorure de vinylidene  et thermoplastique non compatible et son  procede d'obtention par coextrusion
Inventor: STRASSEL ALBERT
IPC: B29C48/08
Filed: 1979-09-24
Granted: 1982-08-31
Abstract: La présente invention concerne un matériau composite possèdant au moins une face externe de polyfluorure de vinylidène et un face de polymère thermoplastique non compatible avec le polyfluorure de vinylidène, caractérisé en ce que les deux polymères sont unis l'un à l'autre sur toute leur surface par l'intermédiaire d'un polyméthacrylate d'alcoyle lui-même au moins partiellement et étroitement allié à toute la surface des deux polymères à unir.  Ce matériau composite est obtenu selon l'invention par coextrusion de polyfluorure de vinylidène, d'un polyméthacrylate d'alcoyle et d'un polymère thermoplastique non compatible avec le polyfluorure de vinylidène, le polyméthacrylate d'alcoyle servant de liant intermédiaire.
Patent CA-1134132-A (CA)
Title: Device for melting a solid body of adhesive  material
Inventor: HERB ARMIN
IPC: B29C65/40
Filed: 1979-10-15
Granted: 1982-10-26
Abstract: ABSTRACT OF THE DISCLOSURE         In a device for melting a body of a solid thermoplastic adhesive material, a melting chamber is positioned within a housing and a feed apparatus moves the solid body in a step-wise fashion through the housing into the chamber.  The feed apparatus includes a slidable carriage with a pair of separate clamping jaws within the carriage.  A rocker lever is pivotally mounted on the housing and is articulated to the clamping jaws.  When a trigger or pushbutton on the housing is pressed inwardly, it pivots the rocker arm and initially displaces the clamping jaws inwardly into clamping contact with the solid body and then moves the carriage, the clamping jaws and the clamping body toward the melting chamber.
Patent CA-1135426-A (CA)
Inventor: IKEDA SABURO
IPC: H03L7/10
Filed: 1979-11-07
Granted: 1982-11-09
Abstract: ABSTRACT OF THE DISCLOSURE         A tuner comprises a local oscillator including a variable capacitance diode.  The output signal of the local oscillator is frequency divided by a prescaler and the frequency divided output is applied to a phase locked loop.  The phase locked loop is structured such that the phases of the output signal of the prescaler and a reference frequency signal are compared and the signal associated with the phase difference is smoothed by a low pass filter and the smoothed output is applied to the variable capacitance diode as a tuning voltage.          The low pass filter includes a smoothing capacitor.  A tuning unlocked state is detected when the terminal voltage of the smoothing capacitor is stabilized at the source voltage or is stabilized at 0 V.  Upon detection of the tuning unlocked state, the tuning voltage applied to the variable capacitance diode is increased (when the smoothing capacitor is stabilized at the source voltage) or decreased when the smoothing capacitor is stabilized at 0 V), thereby to forcibly return to a lockable region.  Thereafter a locked state or a normal reception state is established by a normal operation of the phase locked loop.
Patent CA-1113447-A (CA)
Title: Method and apparatus for cleaning tubes  in heat exchangers
Inventor: SCHWINGHAMER ROLLIN A
IPC: F28G13/00
Filed: 1979-12-10
Granted: 1981-12-01
Abstract: Abstract of the Disclosure The invention relates to a method and apparatus for cleansing the tubes of a heat exchanger using the scouring power of a slurry.  In accordance with the invent-ion, valves are provided in conduits throughout the system whereby the slurry can be cut off to permit normal operation.          The valves are opened only when it is desired to cleanse the tubes.  In accordance with a further embodiment, a rotating element may be disposed at the bottom of the tubes to distri-bute the slurry to respective ones of the tubes to thereby obtain the benefits of the inventive method and apparatus without requiring full force circulation.