baber/WOPTO huggingface dataset:
Patent NO-175067-C (NO)
IPC: D21D5/02
Filed: 1989-08-03
Abstract: The invention relates to a method and a device for screening and treating pulp. In the invention, the pulp is screened in a screen into an accepted fraction and a rejected fraction, the rejected fraction being treated after the screening by removing water from it. In order to reduce the energy consumption of the refining process, the rejected pulp fraction is screened by means of a means 13) rotating rapidly in a reject space (12) of a screen (1) in such a manner that the rapidly rotating means (13) effects a radial flow of the fine-grained material contained in the rejected fraction outwards through a perforated wall (14) surrounding the rotating means (13) into a space (15, 15a) from where the fine-grained material is discharged.
Patent NO-177926-C (NO)
Inventor: WEDEL WEDIGO VON
IPC: B01D53/70
Filed: 1992-11-20
Abstract: Organic halogen cpds. are removed from waste gas opt. contg. NOx by contacting the gas with Caro's acid, H2SO5, or a salt, in a fixed or vortex bed. Pref. the waste gas may be made up with SO2, opt. led over a fixed or vortex bed of a solid, and contacted with H2O2, when Caro's acid is formed in situ, or the gas may be led over the bed, which is sprayed with a mixt. of H2O2 and H2SO4. Before introduction into the waste gas stream, the solid is impregnated with H2SO4, and H2O2 is applied, or the solid is impregnated with H2O2 and H2SO4 is applied, or the solid is impregnated or sprayed with an aq. soln. of Caro's acid or a salt.
Patent CA-2005880-C (CA)
Title: Macrocyclic aminophosphonic acid complexes, their preparation formulations and use
Inventor: SIMON JAIME
IPC: C07F9/38
Filed: 1989-12-18
Granted: 1999-01-05
Abstract: Particle emitting radionuclides, e.g. Samarium-153, have been complexed with certain macrocyclic aminophosphonic acids wherein the nitrogen and phosphorus are interconnected by an alkylene group or substituted alkylene group.  These complexes have been found useful in compositions and formulations for the therapeutic treatment of calcific tumors and the relief of bone pain in animals.
Patent CA-2009103-C (CA)
Title: Mixer level control for microphone and reproducer signals
Inventor: OHMORI SEIJI
IPC: G09B15/00
Filed: 1990-02-01
Granted: 1994-10-18
Abstract: A reproducing apparatus mixes the voice information from a microphone and the information reproduced from a recording medium in which a vocal signal plus an instrumental signal is contained as a first signal in a first channel and only an instrumental signal is contained as a second signal in a second channel.  A first mixing circuit mixes the first signal and the second signal.  The output of the first mixing circuit is mixed by a second mixing circuit with the voice information from the microphone.  A control circuit or audio detecting circuit provides a control signal in accordance with the level of the voice information from the microphone.  The control signal controls a selection control circuit to gradually and smoothly vary the mixing ratio of the first signal and the second signal when mixing these two signals.
Patent CA-2014484-C (CA)
Title: Acoustic detection device
Inventor: HADDERINGH JOHANNES NICOLAAS
IPC: G01S3/803
Filed: 1990-04-12
Granted: 1995-09-05
Abstract: The invention relates to a sonar system, comprising k acoustic detectors (1), for the detection and conversion of acoustic signals into electrical signals s(k); beamforming means (3) and a frequency analysis unit (4), which uses the signals s(k) to generate signals s(?i, fj), which represent acoustic signals with n frequencies fj (j=1...n) received from m beam reception directions ?i (i=1...m), and a data processing unit (5). The data processing unit (5) comprises a direction estimator unit (6), which generates for each of the n frequencies fj on the basis of at least a selection of the signals s(?i,fj) a narrowband estimator .OMEGA.NB(fj) of a direction .OMEGA. of an acoustic source, and subsequently on a selection of these .OMEGA.NB(fj) a broadband estimator .OMEGA.BB.
Patent CA-2029024-C (CA)
Title: Process for preparing cordierite
Inventor: MAEDA KAZUYUKI
IPC: C01B33/26
Filed: 1990-10-31
Granted: 1996-07-09
Abstract: A process for  preparing  a   cordierite,   which comprises dissolving  a  silicon  compound,  an   aluminum compound and a magnesium compound in a molar ratio of 1:0.7 to 1:0.3 to 0.5 in a complexing agent  represented  by  the formula R(OCH2CH2) nOH, wherein R is an alkyl group and n is an integer of 1 to 4; heating  the  resulting  solution  to bring about a  ligand  exchange  reaction  of  the  silicon compound, aluminum compound and magnesium compound with the complexing agent; conducting  hydrolysis  to  form  a  gel; drying the gel and sintering the dried gel at 800 to  1450 C.
Patent CA-2030025-C (CA)
Title: Firefighters barrier penetrator and agent injector
Inventor: MCCLENAHAN CHARLES H
IPC: A62C31/22
Filed: 1990-11-15
Granted: 2001-05-08
Abstract: A penetrator for a fire extinguishing tool has an impact end and a striker end. The penetrator has an impact barrel having a central axis, an axially-extending internal wall, a striker end and an impact end. An axially-extending nozzle having an axially-extending passage barrel is slidably placed in the impact barrel, the nozzle barrel having a peripheral wall with nozzle ports therethrough. A point attached to the nozzle barrel, projects beyond the impact barrel, and a shoulder on the point is laterally aligned with the impact end of the impact barrel for transmission of impact forces from the impact barrel to the point. A first socket is formed in the point facing into the passage in the nozzle barrel, and a taper in the socket narrows toward the impact end. An end cap on the impact barrel at its striker end closes the impact barrel, and has an axially extending rod passage therethrough. A second socket formed on the end cap faces into the impact barrel, and a taper in the end cap enlarges as it extends into the impact barrel. A slide rod is slidably fitted in the end cap, and a collar on the rod outside of the impact barrel. A retainer is attached to the slide rod inside the impact barrel, a first taper on the retainer facing toward the first socket, and a second taper on the retainer facing toward the second socket. A slide hammer is reciprocably slidably fitted on said slide rod and has a striker face disposed and arranged so as to be impacted on the striker surface of the impact barrel. Retention means on the barrels prevent the nozzle barrel from being expelled from the impact barrel. Inlet port means through the impact barrel admits fluid under pressure into the barrels. With the first taper in the first socket, much of the slide rod is held inside the impact barrel, and with the second taper in the second socket much of the slide rod is held outside of the impact barrel.      Impact of the slide hammer on the impact barrel exerts forces on the structure through the point. After penetration, fluid under pressure will be admitted to the barrels, thereby extending the nozzle barrel, and exposing the nozzle ports in order to inject fluid agent into the structure.
Patent CA-2031522-C (CA)
Inventor: MIRIPOL JEFFREY E
IPC: A61L2/00
Filed: 1990-01-17
Granted: 1998-08-25
Abstract: A thin film (10) or layer (10) of white blood cells, such as the contaminating white cells in a platelet concentrate, is irradiated with ultraviolet radiation predominantely of a wavelength  of 280 to 320 nanometers, and preferably at an intensity of 4 to 20 milliwatts per square cm. to provide a total energy exposure of typically 800 to 20,000 millijoules per square cm. of ultraviolet radiation. The white blood cells so processed substantially lose their capability to set off an immune reaction in an alloimmunized patient. The white blood cells may preferably be placed into such film in a flat (10), flexible bag (10) made of poly(ethylene-vinyl acetate) plastic, with the flat (10), flexible bag (10) being stretched in a direction normal to the path of ultraviolet radiation. Novel irradiating devices (40) are also disclosed.
Patent CA-2042386-C (CA)
Title: Instrument and method for the laser desorption of ions in mass spectrometry
Inventor: CHAIT BRIAN TREVOR
IPC: H01J49/10
Filed: 1990-09-26
Granted: 1997-12-02
Abstract: In mass spectrometry, a time of flight (TOF) mass spectrometer is used to measure the mass spectrum of organic molecules of mass ranging from 200 Dalton to greater than 200,000 Dalton. Ions from the sample are desorbed by striking the probe tip with laser pulses in a spot size, on the tip, in the range of 0.03 - 3.0 mm-. The time of flight of the ions is measured and displayed with a resolution of the ion molecular signal in the range of 300-500 full width at half-maximum definition (FWHM).
Patent CA-2043602-C (CA)
Inventor: KONDO HIROAKI
IPC: F04C29/00
Filed: 1991-05-30
Granted: 1995-08-01
Abstract: According to the present invention, there is provided a scroll type fluid machinery, in which a sta-tionary scroll and a revolving scroll having spiral wraps set up on inner  surfaces of respective end plates are engaged with each other, a drive bushing is inserted rotatably into a boss which is projected at a central part of an outer surface of the end plate of the revolving scroll, and an eccentric driving pin of a rotary shaft is fitted slidably into a slide groove bored through the drive bushing, characterized in that a gap between one end of the slide groove in a direction that the radius of revolution becomes larger and the eccentric driving pin is set to a preset very small distance .delta. (here, .delta. is a value determined based on processing error, deformation due to temperature and pressure and the like of abovementioned respective scrolls) when the evolving scroll occupies a position of theoretical radius of revolution thereof.         With this, it is possible to prevent the drive bushing from rotating with a gradient beyond what has been predetermined while the revolving scroll is in revolution.
Patent CA-2043787-C (CA)
Title: Enclosure for slag pelletization apparatus and method of operation thereof
Inventor: SPENCER KENNETH WALTER
IPC: C03B19/10
Filed: 1991-06-03
Granted: 2001-12-04
Abstract: The invention provides a new enclosure for slag pelletizers, and a new method of operating such an enclosure, that minimizes the noise and the escape into the ambient atmosphere of hydrogen sulfide and airborne particulate material produced by the pelletization. The enclosure consists of impermeable walls and a roof, the pelletized material being removed through an openable door at one end that is closed during the process. The enclosure has three successive zones, in the first of which contains the pelletizer, this being supplied with only the amount of water needed for pelletization. In the second zone containing the slag pile a plurality of very fine mist producing nozzles supply water to the gases to cool them using its latent heat of evaporation, the amount of water supplied being such as to cool them as much as possible while being limited so that it all remains vapourised and cannot enter the slag pile to increase its moisture content. In the third zone the quantity of water supplied is sufficient to condense the water vapour, entraining the soluble hydrogen sulfide and the particulate matter. The condensed water and entrained material is removed and treated, preferably with waste alkaline water, to stabilize the hydrogen sulfide, remove the particulate material, and recycle the water. The non-condensible gases exiting from the top of the third zone can pass through a chimney to the atmosphere or to a gas scrubber for further scrubbing.
Patent CA-2045978-C (CA)
Title: Pulp log discharge system for a debarking drum
Inventor: CLARKE-POUNDER IAN J H
IPC: B27L1/02
Filed: 1991-06-28
Granted: 1994-09-20
Abstract: A discharge control system for a pulp log debarking drum is provided and a rotary discharge opening regulator to control the pulp log discharge rate and, thus, the retention time within the debarking drum.  The rotary opening regulator permits variation of both size and location of the discharge opening.
Patent CA-2050663-C (CA)
Title: Belt for papermaking machines
Inventor: JANSSEN EBERHARD
IPC: D21F3/02
Filed: 1991-09-04
Granted: 2004-04-13
Abstract: The invention concerns a belt for papermaking machines, in particular for wet presses with extended press nips, said belt evincing a flexible, liquid-impermeable belt layer smooth on its back side and incorporating only in part on its top side a textile so as to form open cavities. To ensure high flexibility and a high cavity volume to remove the water on one hand and on the other hand to improve bonding between textile and belt layer, the textile 5 comprises a support web 6 and affixed thereto a fiber layer 9 mounted on the side which is adjacent to the belt layer 2, the textile 5 being incorporated only by the fiber layer 9 into the belt layer 2 and the support web 6 being outside the belt layer 2.
Patent CA-2055258-C (CA)
Title: Apparatus for determining the position of a moveable structure along a track
Inventor: EGBERS DAVID A
IPC: B08B15/02
Filed: 1991-11-12
Granted: 1996-10-08
Abstract: A sensing means for determining the absolute position of one or more structures such as doors, windows or the like that are moveable in sets of tracks. Apparatus comprises an electrical switching means having an elongated electrical resistance means with a predetermined resistance value per unit length located adjacent to one of the sash doors, actuator means associated with the sash doors for operating said switching means, circuit means adapted to provide a substantially constant electrical current through a portion of said resistance means between an end portion of said resistance means and the nearest switch location, said circuit means thereby providing a voltage signal having a magnitude that is proportional to the distance between said end portion of said resistance means and the switch location.
Patent CA-2055875-C (CA)
Title: Hot spot detection and suppression system
Inventor: RITTER KENT E
IPC: A62C3/00
Filed: 1991-11-20
Granted: 1994-04-26
Abstract: HOT SPOT DETECTION AND SUPPRESSION SYSTEM            Abstract of the Disclosure A hot spot detection system (78) at one location that is fixed with respect to the rotor (12), and a temperature suppression system (62) at another location that is fixed with respect to the rotor.  The suppression system is automatically energized by the hot spot detection system when a threshold temperature is detected.  Preferably, the suppression system includes one or more pipes (66) that span the radial dimension of the heating element compartments in the rotor.  The detection system can be in the conventional location, on the trailing edge (40) of the air inlet duct (32) of the air preheater.  The suppression piping (66) is preferably located in the hot end, or air discharge duct (34), of the air preheater.  Depending on the location of the suppression piping with respect to rotor rotation, a timing device (100) is preferably employed to start and stop the flow of suppression water into the rotor, just prior to and after the hot spot passes under the piping.
Patent CA-2063386-C (CA)
Inventor: EK ROGER B
IPC: A62D3/36
Filed: 1990-06-29
Granted: 1999-10-12
Abstract: Procédé de transformation minéralogique de déchets d'amiante en un produit different. Les déchets sont traités avec un agent minéralisant et ensuite chauffés pendant une période suffisante pour transformer l'amiante en un produit différent. L'agent minéralisateur est de préférence un borate métallique alcalin ou un silicate métallique alcalin soluble dans l'eau.
Patent CA-2064699-C (CA)
Title: Numeral display device
Inventor: TORABY-PAYHAN REZA
IPC: G09F11/29
Filed: 1991-06-14
Granted: 2005-08-30
Abstract: A numeral display device (20) having at least one visible face (22). Each segment of the device has a transparent outer pane (30) and a spaced, parallel inner pane (32) forming a pocket (36), a first portion (40) of the packet being aligned with and visible through an opening in the face. A flexible film (44) is received in each pocket. A mechanism (53) is provided to insert and withdraw each film from the frist portion of each pocket so that each segment will either contrast with or match the face.
Patent CA-2065087-C (CA)
Title: Process for the preparation of sterically hindered hydroxybenzylphosphonates
Inventor: KAINMULLER THOMAS
IPC: C07F9/40
Filed: 1992-04-03
Granted: 2002-07-09
Abstract: A process for the preparation of hydroxybenzylphosphonates of formula   by reacting a Mannich base of formula   with a trialkyl phosphite of formula   wherein R1 and R2 are each independently of the other C1-C12alkyl or C5-C7cycloalkyl, R3 and R4 are each independently of the other C1-C12alkyl or, when taken together, form a piperidinyl or morpholinyl radical, and R5, R6 and R7 are each independently of one another C1-C4alkyl, which reaction is carried out in the presence of a carboxylic anhydride (IV). The compounds of formula I may suitably be used as processing stabilisers for plastics.
Patent CA-2071380-C (CA)
Title: Combined repositional adhesive sheets
Inventor: WILLIAMS HOWARD D
IPC: B42D15/00
Filed: 1992-06-17
Granted: 2003-08-19
Abstract: A business form is provided ideally suited for use by an organization that delivers products, and/or which relies heavily on phone orders. A first paper sheet has a face, back, arid first size. Indicia is disposed on the face, and a first pattern of repositional adhesive is disposed on the back. A second sheet having a face and a back, and a size much smaller than the first size, has indicia disposed on its face including a phone number, and a second pattern of repositional adhesive is disposed on its back. The second sheet back is readily removably attached to the face of the first sheet by the second pattern of repositional adhesive. The size of the second sheet is such that it will fit on the hand set of a telephone between the ear piece and mouth piece, and the first indicia includes an illustration of how to place the second sheet on a telephone hand set. The form may also comprise a coupon portion. The form is made by applying the second sheets (labels) to a moving web of paper, which is subsequently formed into the first sheets, and which first sheets can be constructed into a pad.
Patent CA-2072959-C (CA)
Title: Concealed frame mounted hitch assembly
Inventor: COLIBERT FLOYD A
IPC: B62D53/08
Filed: 1992-07-02
Granted: 2000-09-19
Abstract: A trailer hitch assembly for installation to the frame or chassis of a pick-up truck and for use with a gooseneck trailer is herein provided, the trailer hitch assembly comprising a detachable ball hitch including a stem attached at one end thereof, a mounting frame which includes means for attaching the mounting frame to the chassis of the truck, and receiving means for securing the stem of the ball hitch to the mounting frame, and integrated locking means for locking the stem of the ball hitch in the receiving means in an operative, locked position. This invention provides the distinct advantage of using integrated locking means which do not include a lock washer, such that the tendency of the lock washer to rip and tear the mounting plate with continued tightenings and loosenings is obviated. The hitch assembly is completely concealed when not in use, leaving the truck bed with a flush floor.
Patent CA-2076494-C (CA)
Title: Dialed number recognition arrangement
Inventor: BOGART FRANK JEFFREY
IPC: H04Q3/42
Filed: 1992-08-20
Granted: 1997-03-25
Abstract: Recognition, including validation, of any dialed number may be fully accomplished entirely at an originating switching system (10) which includes a call-processing arrangement (200) that has stored definitions of the syntax (320, 350) and the grammar (400, 410) of one or more network numbering plans. The syntax definitions include definitions (312) of all individual symbol strings that are valid for the defined network numbering plans. The dialed number is parsed (340) to recognize therein all included symbol strings. Network facilities (16) for the call outside of the originating switching system are seized and used (344) only after all the included symbol strings are recognized and the entire dialed number is validated.
Patent CA-2076833-C (CA)
Title: Retard pad assembly with movable compliant entrance guide
Inventor: WINSHIP BRUCE A
IPC: B65H3/52
Filed: 1992-08-25
Granted: 1999-02-23
Abstract: A retard assembly for use in a friction retard separator and feeder comprising a support member for supporting a retard member and a sheet entrance guide at the incoming end of the retard assembly having a substantially vertical portion and a substantially horizontal portion overlying the incoming guide entrance portion of the retard member in advance of the retard portion of the retard member, said sheet guide being vertically compliant and movable in said support member to enable a reduction in the spring rate in the entrance guide portion of the retard member to a level substantially below the level in the retard portion.
Patent CA-2079905-C (CA)
Title: Removal of organochlorides
Inventor: OU JOHN DI-YI
IPC: C07C7/13
Filed: 1991-04-05
Granted: 1998-07-14
Abstract: The present invention is directed to the removal of organochlorides from hydroca rbon streams using highly crystalline molecular sieve material, such as zeolites, and particularly zeolite X in a sodi um form, and the removal of organochlorides from hydrocarbon streams containing olefinic compounds using such molecular sieves in combination with alumina for the purpose of effecting a decomposition of the organochloride into a corresponding unsaturate d hydrocarbon molecule and a molecule of hydrocarbon chloride wherein the hydrocarbon chloride is removed from the hydroc arbon stream by being adsorbed onto the adsorbent of the highly crystalline molecular sieve used alone, or in combination with alu mina in those instances where olefinic compounds are present in the hydrocarbon stream, so that the unsaturated hydrocarbon molec ule may be recovered from the resultant hydrocarbon stream containing a reduced amount of organochlorides.
Patent CA-2087508-C (CA)
Title: Personal mobility vehicle
Inventor: KRUSE THOMAS E
IPC: B62K5/025
Filed: 1993-01-18
Granted: 1997-01-07
Abstract: A personal mobility vehicle (10 or 80) having a very low center of gravity and compact overall size which facilitates travel in narrow hallways and in negotiating sharp turns as into a doorway along a narrow hall. The vehicle (10 or 80) includes a generally horizontally disposed preferably circular, disc-shaped frame (12 or 82) supported in close proximity above the ground by a steerable, motor-driven front or rear wheel (14 or 84) and two spaced rear or front wheels (20/22 or 100/102). A battery arrangement is connected to and supported by the frame (12 or 82) and operably connected between a control lever (44 or 162) in electrical communication with an electronic circuit (Figure 17 or 80) and the motors for propelling and steering the rear wheel 84. A seat (16 or 85) is provided whereby a user's feet may be comfortably supported on the frame (12 or 82). A circular cushioning ring (36 or 92), either fixed or preferably rotatably mounted and extending radially from the perimeter of the frame (12 or 82), contacts fixed objects such as walls, doorways and the like to facilitate tight maneuvers not heretofore possible with other such vehicles. Outrigger type anti-scuff and anti-tip wheels (118 and 122) may also be provided with vehicle 80.
Patent CA-2088914-C (CA)
Inventor: FORSBERG ERIK
IPC: H01F27/28
Filed: 1991-07-01
Granted: 1996-05-07
Abstract: A procedure when joining the tail ends of sheet-wound coils (1, 2) stacked one on top of the other around an inductive apparatus core with a certain axial space between them, the joint being effected using a thin leader strip (3) which is connected to adjacent parts of the coils and joined to the coils along almost one coil turn.