baber/WOPTO huggingface dataset:
Patent CA-2273978-A1 (CA)
Title: Device for capturing solar energy and transferring it onto a receiving medium to be heated
Inventor: RYLEWSKI EUGENIUSZ MICHAL
IPC: F24J2/04
Filed: 1997-12-01
Abstract: The invention concerns a device for capturing solar energy and transferring it onto a receiving medium to be heated. The device comprises a multiplicity of blades (16), mutually spaced and tiered up to form a screen (10) with an external surface (18) for exposure to the sun radiation and an internal surface (20) for being arranged on the side of the receiving medium (12), the blades defining between them a multiplicity of air channels (22) extending from the external surface (18) to the internal surface (20), closing means being provided for immobilising the air contained in the channels, the blades being transparent or translucent, with low capacity for absorbing the sun radiation and low thermal conductivity, being made from a lap of thin material, and having an outline with an end part bordering the internal surface of the screen.
Patent CA-2274254-A1 (CA)
Title: Hydrogen manufacturing and supplying apparatus and electric vehicle
Inventor: OGINO SHIGERU
IPC: B60L11/18
Filed: 1997-11-06
Abstract: The present invention provides an electric vehicle with fuel cells, which use hydrogen as a gaseous fuel, mounted thereon, a hydrogen generator supplier that feeds a supply of hydrogen to the electric vehicle, and a method of producing and feeding hydrogen. In the case where the supply of hydrogen is used as the gaseous fuel in the electric vehicle, there is difficulties in safely and widely distributing hydrogen to ensure the availability of hydrogen.      The hydrogen generator supplier of the present invention utilizes, for example, the city gas, which is supplied to each house as a commercial gas, for a crude fuel and produces hydrogen from the crude fuel, in order to ensure the availability of hydrogen. The hydrogen generator supplier of the present invention is connected with piping of the commercial gas, and a supply of the commercial gas is fed as the crude fuel to the hydrogen generator supplier. The hydrogen generator supplier reforms the crude fuel to produce a hydrogen rich gas and subsequently separates gaseous fuel from the hydrogen rich gas. Connecting the hydrogen generator supplier with the electric vehicle via a specific connector enables the gaseous hydrogen, which is produced from the commercial gas used as the crude fuel, to be supplied to the electric vehicle. The hydrogen generator supplier of the present invention enables the supply of hydrogen to be used as the gaseous fuel in the electric vehicle, without founding a new distribution system of hydrogen.
Patent CA-2274823-A1 (CA)
Inventor: DIJKSTRA JOHANNES
IPC: G08B13/186
Filed: 1997-12-12
Abstract: Security system, comprising: a transmitter for transmitting radiation in a wavelength range in the order of magnitude of about 630-660 nm; a cable permeable to the radiation which is connected to the transmitter and has a thickness in the order of magnitude of 0.5-1 mm; and a receiver for receiving the radiation passed through the cable, which is connected to the cable; and means for adjusting the degree of sensitivity of the cable.
Patent CA-2275196-A1 (CA)
Title: Nucleic acid sequencing with solid phase capturable terminators
Inventor: JU JINGYUE
IPC: C12Q1/68
Filed: 1997-12-12
Abstract: Methods of enzymatic nucleic acid sequencing are provided in which solid-phase capturable chain terminators are employed. In the subject methods, sequencing fragments are generated, where the fragments comprise capturable chain terminators. The fragments are then captured on a solid phase and separated from the remaining components of the sequencing reaction. The fragments are then released from the solid phase, size separated and detected to yield sequencing data from which the sequence of the nucleic acid is determined.
Patent CA-2277076-A1 (CA)
Title: Mat with integrally molded door
Inventor: CAMPBELL MICHAEL T
IPC: H02G3/22
Filed: 1998-01-15
Abstract: A dash mat (10) for blocking the transfer of sound from the vehicle engine compartment, through the firewall, and into the passenger compartment. The dash mat (10) comprising a planar sheet (12) having a pair of opposed doors (14, 15) aligned with an opening in the firewall through which passes a vehicle accessory.      The doors move between an open position, where the vehicle accessory can be passed through, and a closed position, where the doors (14, 15) seal the vehicle accessory relative to the planar sheet (12).
Patent CA-2281289-A1 (CA)
Title: Quick release hub for cycle wheel
Inventor: EVERETT RICHARD C
IPC: B62B7/04
Filed: 1999-09-02
Abstract: A quick release hub assembly having an elongate hollow axle for receiving thereon a captively held rotatable wheel. For attachment and release, the assembly is provided with an insert mechanism, which fits within a tubular opening on a vehicle. The assembly includes an elongate rod threaded at one end and having a pivotable cam member and handle on the other end. A cam follower washer member is positioned on the rod between the handle and the wheel. The insert mechanism includes first and second cone members in facing relation with a split nylon ring in between the two facing cone surfaces. The cone members are received on the rod and are held in place thereon between the wheel and the threaded end by means of a locking nut. The parts are dimensioned and configured such that movement of the rod in the axial direction outwardly on pivoting of the handle toward the wheel urges the cone surfaces together thus moving the perimeter of the split nylon ring radially outwardly against The inner surface of the tubular opening to thereby lock the hub assembly in place relative to the vehicle. Conversely, pivoting of the handle away from the wheel moves the rod axially inwards to thereby relax the pressure on the nylon washer and permit ready release of the assembly. The cam handle is pivotable about a pivot axis parallel to the plane of the wheel and moves through an angle away from the plane of the wheel to apply (or relax) an axial force to the assembly for securing or release of the assembly.
Patent CA-2283099-A1 (CA)
Title: Method and apparatus for positioning log blocks on optimum center in lathe charger for transfer to veneer lathe
Inventor: ELY GARY W
IPC: B27L5/02
Filed: 1999-09-23
Abstract: A method and apparatus for positioning a log in a lathe charger for transfer to a veneer lathe for peeling in which the geometrical centerline of the log is first determined by sensing the log in an at-rest position with light sensors or mechanical sensors and then two geocenters where such centerline intersects the ends of the log are determined. The log is then scanned with light scanners while it is rotated on charger spindles about such centerline to determine the optimum yield axis of the log by computer processing of the scan data. Two computed centers where the optimum yield axis intersects the opposite ends of the log are computed and the vectors of such computed centers relative to the geocenters are computed. A common line extending between the computed centers is determined and the displacement angle between such common line and a reference line is computed. The reference line may be a vertical axis or the charger pendulum arm radius. Then the log is rotated through the displacement angle to position the common line parallel to the reference line. Next the charger spindles are adjusted laterally along the reference line until the computed centers of the log are both positioned at the point of intersection of the common line and an arc line of travel of the pendulum arm. Then the pendulum arms clamp the log with chucks engaging the ends of the log and the log is transferred from the charger to the veneer lathe spindles by pivoting the pendulum arms to move their chucks and the log along the arc line to the lathe.
Patent CA-2285122-A1 (CA)
Title: Extrusion rolling method and apparatus
Inventor: GINZBURG VLADIMIR B
IPC: B21B1/36
Filed: 1999-10-06
Abstract: The present invention is an apparatus and method for reducing the total number of required rolling passes of a metal strip in a cold rolling mill to achieve a desired strip thickness.      This is accomplished by increasing the exit strip tension of the metal up to 85% of the yield strength Y of the metal strip. This increase in exit strip tension allows a manufacturer to process :trip in an apparatus at a maximum thickness reduction of about 50 to 55% in a single rolling pass. At the same time, the increased exit strip tension will result in a reduced lever arm of the work roll of the cold rolling mill and will substantially reduce all of the roll separating force, motor torque and roll mill power of the apparatus.
Patent CA-2285395-A1 (CA)
Title: Computer system and computer implemented process for editing video fields
Inventor: PORKKA JOSEPH
IPC: H04N5/262
Filed: 1998-03-30
Abstract: A computer implemented method for editing a video frame is disclosed. The video frame comprises scan lines of a first video field interlaced with scan lines of a second video field, and the scan lines comprise a plurality of pixels, each having values representing image information. The method comprises displaying the video frame on a display screen of a computer system, the computer system having a processor and input means which are coupled to the display screen, receiving an input from the input means which indicates which of the first and second video fields of the video frame is to be edited and in response to the input, de-emphasizing the scan lines of the video field which is to be edited.
Patent CA-2287295-A1 (CA)
Title: The use of polymers in masonry applications
Inventor: BOWE MICHAEL DAMIAN
IPC: C04B41/48
Filed: 1999-10-25
Abstract: The use of polymers in masonry applications such as cement modifiers, cement roof tile modifiers, cement roof tile slurry coatings, and cement roof tile coatings is disclosed. The compositions utilized provide improved water absorption and water vapor transmission rates as well as improved flexural strength.
Patent CA-2288448-A1 (CA)
Title: Alkanethiolation process
Inventor: PARK WON S
IPC: C07C321/28
Filed: 1999-11-03
Abstract: A mixture formed from one or more alkyl disulfides, benzene, and at least about 1.5 equivalents of Lewis acid catalyst is heated to form alkanethiobenzene.  Reaction in a mixture formed from excess benzene, dimethyldisulfide (DMDS) and AlCl3 in which the mole ratio of AlCl3 to DMDS was 2:1 was complete in 2 hours and afforded 98% conversion and 93% yield of thioanisole. In contrast, the same reaction when attempted using a 1:1 mole ratio of AlCl3 to DMDS after 6 hours achieved only 66%  conversion and a thioanisole yield of only 35%. So far as is known, this is the first example of a highly efficient electrophilic aromatic substitution of the inactivated benzene ring by an alkanethio group.
Patent CA-2288702-A1 (CA)
Title: Mold plate centralizing system
Inventor: MATTIA DANIEL
IPC: B29C45/32
Filed: 1998-06-04
Abstract: A mold assembly includes a stack of mold plates having a first plate (12) and a second plate (14) movable towards one another and away from one another in opening and closing directions between open and closed positions. The stack of mold plates includes a third plate (28) disposed between the first and second plates. The mold assembly also includes a plate movement control device having at least one linkage. Each linkage may include a traveling element (46) mounted to the third plate for movement along a predetermined path of motion relative to the third plate, a first arm (52) having a first end pivotally connected to the traveling element and a second arm (56) having a first end pivotally connected to the second plate and a second end pivotally connected to the traveling element. The at least one linkage is arranged so that upon movement of the first and second plates between the closed position and the open position, the third plate moves away from the first plate by a first predetermined distance and moves away from the second plate by a second predetermined distance.
Patent CA-2289382-A1 (CA)
Title: Gyricon displays utilizing magnetic addressing and latching mechanisms
Inventor: SHERIDON NICHOLAS K
IPC: G02B26/02
Filed: 1999-11-12
Abstract: A substrate having two opposed surfaces, at least one element, which can be made rotatable by a non-destructive operation, having a diameter and a circumference, disposed in the substrate, the element comprising at least two portions, each portion having an associated optical modulation characteristic, the optical modulation characteristics of at least one portion being different from the optical modulation characteristic of at least one other portion, wherein at least one portion is capable of being permanently magnetized and at least one portion is not capable of being permanently magnetized, and wherein the element has an anisotropy for providing an electrical dipole moment, the electrical dipole moment rendering the element electrically responsive such that when the rotating element is rotatably disposed in an electric field while the electrical dipole moment of the element is provided, the element tends to rotate to an orientation in which the electrical dipole moment aligns with the field, and at least one soft magnetic material pad disposed within the substrate associated with an element, spaced from the associated element and so constructed and arranged such that when the at least one portion of the element which is capable of being permanently magnetized is magnetized and the element is oriented such that the at least one magnetized of the element is the portion of the element nearest the soft magnetic material pad a magnetic attractive force will exist between the soft magnetic pad and the at least one magnetized portion.
Patent CA-2292374-A1 (CA)
Inventor: PARALES RICARDO M
IPC: A47K10/36
Filed: 1999-12-17
Abstract: A towel dispenser, such as a paper towel dispenser, having a metering mechanism for preventing excessive towel dispensing. The dispenser includes a housing, a dispensing mechanism associated with the housing for dispensing towel stored within the housing, and a metering mechanism associated with the housing for metering a length of towel dispensed from the housing. The metering mechanism includes a metering bar that is slideably disposed within the housing and that is selectively engageable with the dispensing mechanism for controlling actuation of the dispensing mechanism. The metering mechanism also includes an actuation button that is accessible from outside the housing and that is connected to the metering bar for actuating the metering bar. The actuation button is moveable in a direction that is opposite the direction of movement of the metering bar. The metering mechanism of the invention is more tamper resistant to prevent damage thereto and to the elements of a dispensing mechanism of the towel dispenser. Further, the dispenser is more ergonomic in design.
Patent CA-2292985-A1 (CA)
Title: Process for producing silica by decomposition of an organosilane
Inventor: ARIMONDI MARCO
IPC: C03B20/00
Filed: 1999-12-21
Abstract: A process for producing a high-purity optical silica preform, comprising (a) vaporization of an organosilicon compound; (b) thermal decomposition of the said organosilicon compound in the vapour state, to give amorphous fused silica particles; (c) deposition of the said amorphous fused silica particles on a support, in which the said organosilicon compound has the formula (I) (See formula I) in which R1, R2, R3 and R4 have the meanings given in the text.
Patent CA-2296866-A1 (CA)
Inventor: HAAPIO JAAKKO
IPC: F23L15/00
Filed: 2000-01-21
Abstract: In a method in the ventilation of a boiler room (H), combustion air is supplied to an industrial boiler (B) from the inside of the substantially closed boiler room surrounding the boiler. Combustion air to be supplied to the boiler is taken from the inside of the boiler room in the area of the lower half of the height of the boiler room (H).
Patent CA-2297320-A1 (CA)
Inventor: SMITH NOEL G
IPC: A01D75/00
Filed: 2000-01-27
Abstract: A dryer for forage crops is mounted on a wheeled vehicle and includes a drum, a feed conveyor and pick-up for carrying forage crop into an opening at the bottom front the drum for movement around the drum and a discharge opening for discharging the forage crop from the drum after movement within the drum. A  fan generates an air flow through the forage crop while in the drum and a radiator at the back of the drum heats the air flow. The drum includes an inner rotating drum with outer paddles and fingers which co-operate with a helical flight on the inside of the drum such that the inner drum carries the forage crop around and the flight moves the crop through the drum while the air is passed outwardly through perforated walls of the drums and through the forage crop to effect drying of the forage crop.  The forage crop can be discharged from the drum in dried condition.
Patent CA-2297353-A1 (CA)
Title: Power amplifier arrangement
Inventor: SERVAES JAN
IPC: H03F1/02
Filed: 2000-01-27
Abstract: Amplifier of the G class type, comprising at least one set of two transistor pairs (1,2; 3,4) having together four transistors (11 to 14; 19 to 22) of the same conductivity type with an input electrode, a common electrode and an output electrode, each pair (1,2; 4,3) comprising an input transistor (11,13; 19,21) and an output transistor (12,14; 20,22) in cascade, the output electrode of the input transistor (11,13; 19,21) being coupled to the input electrode of the output transistor (12,14; 20,22), whereby further means (5) are provided for applying an input signal to the input electrodes of the input transistors (1 1,13;  19,21) of both pairs and both pairs (1,2; 3,4) are biased by two different voltage supplies (6,7; 8,9), control means being provided for switching over from the voltage of one voltage supply (6; 8) to the voltage of the other voltage supply (7; 9), the transistors (11 and 12; 19 and 20) of the first pair (1; 4) of a set being connected in a Darlington circuit arrangement while both transistors (13 and 14; 21 and 22} of the second pair (2; 3) have their common electrodes separated from each other, the common electrode of the input transistor (13 or 21) of the second pair (2 or 3) being coupled to the output electrode of the input transistor (11;  19) of the first pair (1; 4) and the common electrode of the output transistor (14;  22) of the second pair (2; 3) being coupled to the output electrode of the output transistor (12; 20) of the first pair (1; 4).
Patent CA-2297378-A1 (CA)
Title: Synthetic fiber cable
Inventor: DE ANGELIS CLAUDIO
IPC: D07B1/02
Filed: 2000-01-21
Abstract: A synthetic fibre cable (1), preferably of polyamide, according to the invention consists of a bundle of load-bearing synthetic material fibres (2) and at least one conductive temperature sensor element (9) participating in the cable (1). The temperature sensor element (9) forms, in dependence on the temperature, a conductive connection over the length of the cable (1), which connection is constantly monitored by measurement technology. The connection is interrupted at a checking control in the case of temperatures critical for the synthetic fibre cable (1). The temperature sensor element (9) in one embodiment is a fine wire melting at the critical temperature. The synthetic fibre cable (1) according to the invention is used in lift installations amongst other things as a safety device, especially as a fire alarm.
Patent CA-2297589-A1 (CA)
Title: Energy transfer dyes with enhanced fluorescence
Inventor: LEE LINDA G
IPC: C09B11/08
Filed: 1997-04-23
Abstract: Novel linkers for linking a donor dye to an acceptor dye in an energy transfer fluorescent dye are provided. These linkers facilitate the efficient transfer of energy between a donor and acceptor dye in an energy transfer dye. One of these linkers for linking a donor dye to an acceptor dye in an energy transfer fluorescent dye has the general structure R21Z1C(O)R22R28 where R21 is a C1-5 alkyl attached to the donor dye, C(O) is a carbonyl group, Z, is either NH, sulfur or oxygen, R22 is a substituent which includes an alkene, diene, alkyne, a five and six membered ring having at least one unsaturated bond or a fused ring structure which is attached to the carbonyl carbon, and R28 includes a functional group which attaches the linker to the acceptor dye.
Patent CA-2299105-A1 (CA)
Title: Process for the fermentative production of l-amino acids using coryneform bacteria
Inventor: PFEFFERLE WALTER
IPC: C12N9/06
Filed: 2000-02-18
Abstract: This invention relates to a process for the production of L-amino acids using coryneform bacteria, in which the glutamate dehydrogenase gene is amplified.
Patent CA-2299285-A1 (CA)
Title: Method and apparatus for generating basis sets for use in spectroscopic analysis
Inventor: HAZEN KEVIN H
IPC: G01N21/35
Filed: 1998-07-27
Abstract: One or more basis sets are applied to a spectroscopic signal during analysis to produce an accurate spectral representation from which analyte concentration may be accurately determined. A basis set includes all interfering components found in a sample, such as serum. With regard to an analyte, such as glucose, it is necessary to define those components of a sample that have a larger interference than that of glucose. A basis set may be generated, for example, that produces a transform for the red blood cells that interfere or scatter the light; and also for skin effects. Once the spectra of all these components is known, it is then necessary to determine how each of these components interact, e.g. taking serum data, extracting each of the components, and then comparing the spectra for the individual components with that of the components in solution. The invention characterizes each component in a sample, as well as all other possible interferants and, after producing an accurate representation of each component at each frequency of interest, identifies and subtracts each interferant from the spectra produced at the frequency of interest. The basis sets may take the form of transforms that may be stored in a look-up table for use during analysis.
Patent CA-2299493-A1 (CA)
Inventor: BURRISS JOSEPH CONRAD
IPC: A61F13/56
Filed: 2000-02-24
Abstract: A distinctive method and apparatus for forming an article includes a moving of at least one first strand of material, such as strand (22), along an appointed machine-direction (34). The at least one first strand of material is attached to a base layer of material (42) to provide a substrate composite (40), and a laminate layer (44) can be placed adjacent the at least one first strand of material to provide a laminate composite web (48). In a particular aspect, at least one second strand of material, such as strand (56), can be moved along its appointed machine-direction, and the at least one second strand of material can be attached to the base layer (42). In another aspect, an appointed portion of the base layer (42) can be folded to substantially enclose the at least one second strand (56) with the base layer material. Alternatively or additionally, an appointed portion of the base layer (42) can be folded to substantially enclose the at least one first strand (22) and the laminate layer (44) with the base layer material. In a further aspect, at least one of the strands of material can be divided of into a plurality of strand segments to provide a substantially nongathering section of at least one of the strands.