baber/WOPTO huggingface dataset:
Patent CA-2006453-C (CA)
Title: An extraction process and apparatus to remove pcb's from soil and sludge
Inventor: DARIAN SAEED T
IPC: C02F11/00
Filed: 1989-12-21
Granted: 1999-07-27
Abstract: This invention relates to a process for treating soil and sludge for removal of contaminants in contact with the soil or sludge.  More particularly, this invention relates to a process where contaminants such as inorganic contaminants such as metal or metal salts or organic contaminants such as PCBs are removed from water-wet soil and sludge.  In particular, this invention relates to a process for treating or cleaning a contaminated water-wet solid containing mixture by contacting the contaminated water-wet mixture with a solvent, the solvent containing a comminuting surfactant.  The solvent used is a solvent for the contaminant and is sparingly soluble in water.  The purpose of adding a comminuting surfactant to the solvent is to form a dispersed mixture of the solids, contaminants, and water whereby the contaminants are extractable into the solvent.  The solvent containing the contaminants is easily separated from the solids and then the solvents and contaminants are separated and the solvent is reused.  The solvent is preferably a hydrocarbon solvent containing a comminuting surfactant.
Patent CA-2010129-C (CA)
Title: Thermal printer
Inventor: NAKAMURA HISASHI
IPC: B41J13/22
Filed: 1990-02-15
Granted: 1996-04-23
Abstract: A thermal printer has a tension roller which rotates at a peripheral speed higher than that of a platen roller.  A recording paper after a thermal transfer of an ink thereto is tensed by the tension roller so that separation  of the transferred ink from an ink sheet is conducted at a constant separation angle, thus ensuring high uniformity of the printing quality.
Patent CA-2013689-C (CA)
Title: Process for producing diaryl carbonate
Inventor: DEGUCHI RYOJI
IPC: C07C68/06
Filed: 1990-04-03
Granted: 1997-10-28
Abstract: The invention relates to a process for producing a diaryl carbonate which comprises diproportionating an alkylaryl carbonate to a diaryl carbonate and a dialkyl carbonate in the presence of a lead catalyst.
Patent CA-2016181-C (CA)
Inventor: RIZZI JAMES P
IPC: A61K31/47
Filed: 1990-05-07
Granted: 1999-03-23
Abstract: Arylthiazolylimidazoles as 5HT3 antagonists useful in the treatment of nausea, anxiety, pain, schizophrenia and gastrointestinal disorders.  Ar-HET-CH2-X wherein Ar is pyridyl, 3-indolyl; 8-quinolyl, phenyl or mono- or disubstituted phenyl wherein the substituent is each methyl, methoxy, fluoro, chloro or bromo; HET is thiazolyl; and X is imidazole or mono- or dimethylimidazole.
Patent CA-2020703-C (CA)
Inventor: KASEMEIER JAMES E
IPC: F16H48/06
Filed: 1990-07-09
Granted: 1994-03-01
Abstract: DIFFERENTIAL HOUSING SUPPORT   ABSTRACT     A differential housing support assembly includes a pivot pin which projects from an end of the housing and is pivotally received in an annual ring of a support bracket which is bolted to a vehicle frame member.  A cover plate is bolted to an end fact of the ring and includes a central portion which is directly engageable with an end of the pivot pin.  Free play between the pivot pin and the cover plate is adjusted by controlling the number of annular shims placed between the annular ring and the cover plate.
Patent CA-2025816-C (CA)
Title: Cleaning solution
Inventor: PINSL-OBER JUDITH
IPC: C12Q1/00
Filed: 1990-09-20
Granted: 1996-01-30
Abstract: An aqueous cleaning solution is described which is characterized in that it contains a rapidly wetting surfactant chosen from the group of sulphosuccinic acid ester, fluorosurfactants and secondary alkanesulphonates having a wetting time (according to the Draves Test) of less than 20 seconds at a concentration of 0.3 % by weight at 25°C and an inorganic or organic acid with a PKS value of >2.5, and which has a maximum pH value of 4Ø  This cleaning solution is very suitable for a rapid, simple and effective cleaning of diagnostic analyzer systems with a single cleaning agent.
Patent CA-2029585-C (CA)
Title: Changing characters in an image
Inventor: BAGLEY STEVEN C
IPC: G06K9/72
Filed: 1990-11-08
Granted: 1995-02-14
Abstract: An existing character, in a text defined in image form by data such as a two-dimensional array, is copied to add a new character to the text. The existing character is found by performing character recognition on a two-dimensional data array defining an image that includes part of the text, such as a page. The array can be obtained from a scanner. A word that is recognized as including characters of the type needed is tested to determine whether it can be divided into the correct number of characters. The word is divided by finding connected components in the part of the array in which the word was found during recognition. The connected components are grouped into sets, each set being likely to be a character. If the word can be correctly divided, character-size arrays for its characters are obtained and saved. One of the arrays for the character type of the new character is selected and used to produce an array for the word in which it is included. The new word's array is then used to produce an array for a line in which the new word replaces an old word. The characters of the new word are spaced according to the spacing of the characters of the old word. The new character is positioned transverse to the line based on the transverse positioning of the existing character. The interword spaces of the line are adjusted. The line's array is then used to produce data defining a modified version of the text in image form. The old word can be an incorrectly spelled word, detected by spell checking the character recognition results. Alternative spelling corrections can be presented to the user for selection of a correction to be used.
Patent CA-2034995-C (CA)
Title: Dual tillage implement
Inventor: PECK DONALD R
IPC: A01B49/02
Filed: 1991-01-25
Granted: 1995-09-19
Abstract: A combination tillage and incorporating implement having widely spaced sweeps in several rows at the forward portion of the main frame with tow trailing rows of angled spider wheels supported in pairs, for ground contour following ability and ease and flexibility of manufacture, by rockable arms extending rearwardly from the frame.  Spray nozzles or the like, positioned rearwardly of the sweeps and forwardly of the spider wheels, apply material to the soil loosened and leveled by the sweeps to eliminate banding and uneven application otherwise caused by sweeps parting the soil or by material being deposited on rough ground surfaces.  The rotational axes of the wheels of each row are parallel and angled with respect to the transverse direction with the rear row of wheels being angled in the opposite direction to that of the leading row to provide aggressive mixing and smooth uninterrupted soil flow across the width of the implement.
Patent CA-2037509-C (CA)
Title: Dual-lock blind fastener
Inventor: SIEBOL GEORGE
IPC: B21J15/00
Filed: 1991-03-04
Granted: 1998-05-12
Abstract: A fastener having an assembly comprising a sleeve and pin for telescoping movement therein useful for clamping together a plurality of work pieces has two mechanical locking structures for locking the pin and sleeve  together.    One  locking  mechanism   comprises material contained in a reduced diameter section of the sleeve which is formed into a first locking groove of the pin as a result of pulling the pin into the sleeve.  A second lock comprises a locking crown formed in the sleeve head which is formed into a second locking groove in the pin by means of increased pulling pressure applied by the setting tool against the locking crown after pin movement has stopped.  The design of the pin head is such that a clamping of the work pieces occurs prior to expansion of the sleeve in the apertures of the work pieces and prior to setting the double locks of the pin to the sleeve.
Patent CA-2041501-C (CA)
Title: Automated channel test unit
Inventor: ABRAMS LANE J
IPC: H04M3/26
Filed: 1991-04-30
Granted: 1995-02-07
Abstract: AUTOMATED CHANNEL TEST UNIT Abstract Disclosed is a circuit for the automatic testing of channel units such as found in subscriber loop carrier (SLC?) systems. The circuit is included as part of the remote terminal of the system and performs type tests, power-up tests and routine verification tests. The circuit also monitors the subscriber channel, and connects the subscriber in the event of a ringing signal or an off-hook during a test. The results of the test are sent to a display unit which can be located at the remote terminal and/or the central office.
Patent CA-2045211-C (CA)
Title: Method for regulating power in a digital mobile telephony system
Inventor: LARSSON STIG MARTIN
IPC: H04B1/40
Filed: 1991-06-21
Granted: 2001-08-14
Abstract: The present invention relates to a method of regulating or adjusting the transmission power when transmitting signals between a mobile station and a base station in a digital mobile telephony system. The output power is regulated with the intention of constantly maintaining the transmission power at an optimum level, by which is meant that the transmission power is as low as possible such as to prevent unnecessary disturbance of neighbouring channels transmitting information on the same frequency, but sufficiently high for the transmitted information to be interpreted in the receiver. The measurement values of signal strength and signal-transmission quality are collected, the mean values of the signal strength and transmission quality are calculated on the basis of the collected measurement values. kith the aid of the calculated mean values, there is calculated an anticipated value of signal strength and transmission quality *(*Z_QQ) at the next time-point, provided that the transmission power is maintained unchanged in relation to the transmission power at the present or instant time-point. Finally, the transmission power at the next time-point is regulated on the basis of these anticipated values. The transmission power is increased when the anticipated transmission quality is poorer than the desired quality and is increased when the anticipated quality is higher than the highest permitted quality or when the anticipated signal strength is greater than the maximum permitted value. The transmission power is otherwise maintained unchanged.
Patent CA-2045295-C (CA)
Title: Wooden x-beam
Inventor: LAU PETER WING-CHEONG
IPC: E04C3/12
Filed: 1991-06-24
Granted: 1996-05-21
Abstract: A  novel  wooden  structural  member,  having  in cross-section, an X-beam appearance, is disclosed and is useful as a beam, post or the like.  It is very simple to fabricate  and  exhibits  more  flexible  shear  strength characteristics over known wooden I-beams.  An elongate web section has wedge-shaped flange members securely attached to opposite sidewalls of the web so that, in structural member cross-section, the web is inclined and one surface of each of the flanges respectively forms all or a major part of the first and second or top and bottom surfaces of the structural member.  The other surfaces of each of the wedge-shaped flanges are respectively in contact with and fixed to opposite sides of the web and preferably extend inward of the web to a depth equivalent to at least one half the depth of the beam.  Unlike a joist, the structural member has a constant cross-section along its length.
Patent CA-2046609-C (CA)
Title: Pivotal ladder
Inventor: WHITING LAUREN C
IPC: E06C5/04
Filed: 1990-02-26
Granted: 1994-09-13
Abstract: A ladder assembly (10) is adapted to be mounted on a suitable support (11), such as a truck or trailer. The ladder assembly includes a ladder (12) mounted on the distal end of a shaft (49). The shaft is slidably received in a cylinder (48). A pair of spaced abutment stops (74) are provided on the support, and provide a recess (75) to receive a portion of the ladder when the ladder is in its upright position. A spring (64) urges the shaft and ladder to move toward the support along the axis (x-x) of the cylinder.  The ladder is adapted to be moved between an upright position, at which a portion of the ladder is received in the recess between the abutment stops, and an out-of-the-way horizontal position.
Patent CA-2057772-C (CA)
Title: Spillway in case of exceptional floods for dams comprising at least two sluices
Inventor: LEMPERIERE FRANCOIS
IPC: E02B8/06
Filed: 1991-12-20
Granted: 1995-11-14
Abstract: In order at less cost to replace particular sluices so as to close off virtually permanently, except during the passage of exceptional floods, all or part of the free spill-over sill (6) of a barrage, the invention provides the arrangement on the sill (6) of the spillway (5) a shutter (10) consisting of at least one solid element (11), said shutter (10) or the shutter elements (11) being made fusible by tilting for a predetermined water load corresponding to a level (N) at most equal to the maximum level (RM) and then allowing the passage of the exceptional floods, smaller floods being discharged by means of another permanent device (7). 
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Patent CA-2060682-C (CA)
Title: Low free formaldehyde phenolic polyol formulation
Inventor: GEOFFREY MICHAEL M
IPC: C08G18/54
Filed: 1992-02-05
Granted: 2002-01-29
Abstract: A resin is prepared by the reaction of a phenol, an aldehyde and an aliphatic hydroxy compound containing two or more hydroxy groups per molecule in the presence of a divalent metal ion catalyst. These resins react with polyisocyanates to form polyurethanes that are useful binders for foundry cores and molds.
Patent CA-2062921-C (CA)
Inventor: PHAM VAN DOAN
IPC: H01H33/16
Filed: 1992-03-12
Granted: 1995-09-05
Abstract: La présente invention concerne un dispositif de varistance et de résistance incorporé dans la chambre de coupure d'un dijoncteur à gaz diélectrique, les éléments de varistance et de résistance étant mis en série et logés dans un tube isolant. Les éléments de varistance et de résistance sont d'une part superposés, les éléments superposés étant séparés les uns des autres par des éléments isolants et d'autre part juxtaposés,les éléments juxtaposés étant reliés électriquement par des éléments conducteurs intercalés entre les extrémités des éléments superposés et les éléments isolants.
Patent CA-2067437-C (CA)
Inventor: DAVIS DONALD D
IPC: E05D13/00
Filed: 1992-04-28
Granted: 1996-06-25
Abstract: A spring balance for counteracting the weight of heavy window sashes includes both a torsion spring and a tension spring.  The two springs are separated by a rigid tube.  One end of each spring is connected to an end of the rigid tube.  A spiral member engages a follower carried by the other end of the torsion spring and includes a stop along its length for engaging an anchor carried by the other end of the tension spring.  The spiral member can be attached by conventional means to a shoe or other connection to the window sash.
Patent CA-2073519-C (CA)
Title: Magnetic reproduction apparatus
Inventor: IWAMURA SOICHI
IPC: G11B20/02
Filed: 1992-07-09
Granted: 1997-01-21
Abstract: A  magnetic  reproduction  apparatus  which  uses  a magnetic  recording  medium on  which  frequency-modulated signals produced by frequency-modulating a carrier with video  signals  are recorded,  and demodulates  reproduced signals from the magnetic recording medium into the video signals.  The apparatus includes a frequency convertor for causing  the  reproduced  signals  to  shift  to  a  higher frequency region and a pulse-count-type FM demodulator for demodulating the reproduced signals which have shifted to the higher frequency region into the video signals.  This arrangement restrains the mixing of the reproduced signals in the video signals.   Therefore the video signals are reproduced with lessened waveform distortion, achieving a high-quality image.
Patent CA-2077566-C (CA)
Title: Anti spattering agent and spreads comprising the same
Inventor: VERMAAS LEO FRANS
IPC: A23D7/01
Filed: 1992-09-04
Granted: 1996-07-30
Abstract: It is known to add anti-spattering agents to spreads and other frying fats so as to reduce the spattering tendency. Anti-spattering agents include, nitrogen, salt, calcium chloride or phosphates, and emulsifiers such as egg yolk and lecithin. Oxidised bean oil is known to be effective against primary spattering but ineffective against secondary spattering. An improved anti-spattering agent effective against both primary and secondary spattering, comprises a mixture of a thermally oxidised vegetable oil such as "blown bean oil" and a source of phosphatidyl choline, preferably "Cetinol".
Patent CA-2077802-C (CA)
Title: Print-through two-sided printing process for napped woven blankets
Inventor: OWENBY DANIEL B
IPC: D06B5/08
Filed: 1992-09-09
Granted: 1995-08-01
Abstract: A printed woven blanket is provided which is printed on only one side but has the appearance of having been printed on both sides.  A cationic dye is applied to one side of the blanket uti-lizing a roller which forces the dye into the fabric forming a printed pattern.  The printed blanket is dried and then steamed to set the dye.  The blanket is napped which further enhances the ap-pearance of the side which is not printed.
Patent CA-2078903-C (CA)
Title: Printer ribbon drive system
Inventor: BARRUS GORDON BRENT
IPC: B41J33/34
Filed: 1992-09-23
Granted: 1998-08-18
Abstract: This disclosure sets forth a dot matrix printer having an improved ribbon drive.  The ribbon drive is provided by two respective stepper motors.  When one stepper motor is in a take-up mode, the second is in a feed mode.  The process is reversed proximate the end of the tape as it is unwound.  A re-generative mode for the feed motor is provided and a resistance bank varies amounts of drag on the ribbon as it is fed from the feed motor spool.  Both motors when in the take-up mode are driven by full H bridge drivers and amplifiers controlled by a micro controller through an address and decode input and output latch.  In order to provide for a uniform velocity of the print ribbon the angular velocity of the take up motor is controlled by counting the zero crossings of the feed motor, and then loading it into the micro controller to compare it with a look-up table for purposes of providing a proper speed to the take-up motor and the proper peak drag through the resistance bank to the feed motor.  All functions are controlled by the micro controller and firmware logic provided thereto.
Patent CA-2079707-C (CA)
Title: Dice displaying apparatus for a computer game machine
Inventor: MATSUMOTO SHIGEKAZU
IPC: A63F9/04
Filed: 1992-10-02
Granted: 1995-02-14
Abstract: ABSTRACT OF THE DISCLOSURE    A dice displaying apparatus for a computer game machine includes a trackball operable by each player. Rolling speeds of two dice are derived from an amount and direction of operation of the trackball.  Rolling angles of the dice are also derived from the amount and direction of operation of the trackball, with  slight angles derived from random numbers added thereto. Display positions for the respective dice are deter-mined every predetermined intervals of time from the rolling speeds and rolling angles. Image patterns of varied phases of rolling dice corresponding to the rolling angles are presented in the respective display positions on CRT displays.
Patent CA-2083804-C (CA)
Title: A process and a device for continuous casting of slabs or ingots
Inventor: STREUBEL HANS
IPC: B22D11/128
Filed: 1992-11-25
Granted: 2000-05-23
Abstract: In a process and apparatus for the continuous casting of slabs and ingots which uses a soft-reduction line including a pair of movable rollers arranged in a plane perpendicular to slab movement and a mechanism for driving the rollers towards each other and an adjustable spindle for holding the rollers apart by a desired jaw width, the load on the spindle is reduced during the spindle adjustment process. This reduction in load may be temporary in which case, after the adjustment is complete and the new jaw width has been established, the spindle load is retuned to its pre-adjustment value. Alternatively, the spindle can operate in a reduced load condition permanently in which case the desired jaw width can be set continuously using the reduced-load spindle with only a small spindle adjustment force being necessary.
Patent CA-2083829-C (CA)
Title: Powder coating compositions
Inventor: SINCLAIR-DAY JOHN D
IPC: C09D5/03
Filed: 1991-05-31
Granted: 2002-07-23
Abstract: A composition of the present invention for application as a powder coating is in the form of a fused agglomerate of differ-ent particulate components consisting of a primary film-forming component and one or more other components selected from film-forming and non-film-forming components. The agglomerated composition may be used to introduce a variety of additives into powder coatings and to provide a variety of aesthetic effects, both in single-layer and multilayer systems.
Patent CA-2092725-C (CA)
Title: Shrink film labeling with polyurethane hot melts
Inventor: NOWICKI JAMES
IPC: C09J7/35
Filed: 1993-03-09
Granted: 1999-01-12
Abstract: A process for applying heat shrink film to containers comprising the steps of a) coating at least a portion of a heat shrinkable but unshrunken film segment with a reactive hot melt polyurethane adhesive having a free isocyante content greater than 2% and a viscosity less than 3000 cps at 225°F; b) applying the film to the longitudinal surface of the container; and, c) subjecting the container to heat to shrink the film onto the container so as to permanently affix it thereto.
Patent CA-2103326-C (CA)
Inventor: COOKSEY WILLIAM L
IPC: A01F12/10
Filed: 1993-11-17
Granted: 1999-01-19
Abstract: ABSTRACT OF THE DISCLOSURE An axial-flow combine including a feeder mechanism and an axial flow rotor assembly having an impeller assembly arranged at a forward end of a rotor. The feeder mechanism includes a housing which is pivotally connected to the combine about atransverse axis. The feeder mechanism housing envelops a conveyor assembly used to impart linear movements to the crop materials as they are advanced toward the rotor assembly. Prior to their introduction to the rotor assembly, the linearly advancing crop materials are discharged from a rotary member. A salient feature at the present invention involves the communicative relationship established between the rearmost rotary member from which the crop materials are discharged and the foremost end of the impeller assembly. The longitudinal spacial relationship therebetween is such that the crop material flow is permitted to transmute from the linear flow imparted thereto as the materials moved toward the rotor assembly and a rotary or circulatory flow imparted thereto as the materials are introduced to the whirling blades of the impeller assembly.
Patent CA-2103444-C (CA)
Title: Belt construction, the combination of the belt construction and a pulley, and methods of making the same
Inventor: WHITE JACK D JR
IPC: F16G5/20
Filed: 1992-06-17
Granted: 2003-11-11
Abstract: The combination of an endless power transmission belt construction and a pulley therefor, the belt construction and meth-ods of making the same are provided, the belt construction (41-41B) having opposed inner and outer surfaces (48-48B, 49-49B) with each surface defining a plurality of longitudinally disposed and alternately spaced apart like projections (60-60B) and grooves (61-61B) that are adapted to mesh with a ribbed surface (71) of a pulley (70), the depth (D) of the grooves of each of the surfaces of the belt construction (41-41B) being substantially less than the approximately 2.4 mm depth of the grooves of the known belt construction that is adapted to have one of the opposed surfaces thereof mesh with the ribbed surface of the pulley in the same manner as the first mentioned belt construction.
Patent CA-2103520-C (CA)
Title: Binders for powder coatings
Inventor: BRINDOEPKE GERHARD
IPC: C09D5/46
Filed: 1993-08-06
Granted: 2003-04-01
Abstract: Binders for powder coatings comprising A) a solid unsat-urated polyester and B) a polyurethane comprising (meth)-acryloyl groups. These polyester-containing mixtures are distinguished by an improved blocking stability as compared with polyurethane alone.