baber/WOPTO huggingface dataset:
Patent CA-2008819-A1 (CA)
Title: Regionally adaptive imaging techniques
Inventor: MANOLAKIS DIMITRIS
IPC: G06T7/00
Filed: 1990-01-29
Abstract: ABSTRACT OF THE DISCLOSURE A first regionally adaptive imaging technique, for enhancing the contrast of a digital image, employs an adaptive histogram equalization technique in which thehistogram associated with a contextual region is low pass filtered, prior to developing the mapping function, of original pixel intensity to adjusted pixel intensity, from the histogram. A second technique for enhancing the contrast of images within a smooth background employs a regionally adaptive filter in which the intensity of selected pixels are adjusted in accordance with a transformation which is a function of the mode of pixel intensities, and deviations from the mode of pixel intensities, within a contextual region corresponding to the selected pixel.
Patent CA-2009378-A1 (CA)
Title: Device in impact machines
Inventor: RODERT JORGEN A R
IPC: E21B6/00
Filed: 1990-02-06
Abstract: Device in impact machines. The device comprises a first chamber (5) which is connected to an accmulator (6) and the pressure of which is used to hold together a set of rods (2) forming part of the drill tool. Furthermore there is a second chamber (7) to damp the recoil from the set of rods.
Patent CA-2010099-A1 (CA)
Title: Grass cutting device
Inventor: CAMPBELL DAVID L
IPC: A01D34/73
Filed: 1990-02-14
Abstract: ABSTRACT OF THE DISCLOSURE      A cutting device is provided to replace a conventional lawnmower blade which offers improved safety, outstanding grass cutting ability improved grass bagging suction, and a reduction in the strain on the engine.   The device includes   an   elongated,   downwardly   curved   rigid thermoplastic member having an upstanding airfoil at each distal  end.    Several  elongated  flexible  tines  extend outwardly away and downwardly from the member.  The tips of these tines operate to effectively cut the grass while flexing for safety if an object is encountered, such as a rock or toe.  The airfoils increase the suction within the mowing cavity to increase the grass bagging efficiency. The downwardly curved configuration presents the tips of the tines for grass cutting while reducing or eliminating the drag of the member on the grass.  In a preferred form, a weighted insert is included in each end to assist the fly-wheel effect and which is also adapted to permit tine replacement.  Preferably, orienting the airfoil about 29 1/2 degrees gives greater side discharge velocity.
Patent CA-2010643-A1 (CA)
IPC: H02K7/102
Filed: 1990-02-22
Abstract: ANTI-LOCK BRAKING SYSTEM WITH ELECTROMAGNETIC BRAKE            Abstract of the Disclosure A vehicle wheel anti-lock braking system (ABS) is provided including a master cylinder and a wheel brake. An ABS controller cognizant of the rotational condition of the wheel provides a signal when the wheel conditionis within preset parameters. An isolation valve responsive to close upon an activation signal given by said controller prevents fluid communication between the master cylinder and the wheel brake. An actuator frame is also provided having a bore fluidly communicating with the wheel brake. A piston is mounted within the bore for providing a variable control volume in communication with said wheel brake and for modulating the pressure therein. A reversible motor reciprocally powers the piston. The motor has a rotor with a connected disc. A friction surface is provided for engagement with the disc to lock the position of the piston. A plunger is also provided to urge said friction surface into engagement with said disc. An electromagnetic core, responsive to a signal by said controller, moves the plunger to a position allowing removal of engagement between said friction surface and said disc, thereby allowing rotation of the motor and movement of the piston.
Patent CA-2012408-A1 (CA)
Title: A transmission system
Inventor: SCHERZ MICHAEL
IPC: G08C17/04
Filed: 1990-03-16
Abstract: ABSTRACT         An apparatus for transmitting signals that can be broken down into at least one AC voltage component between a rotor and a stator from a sender unit to a receiver unit, with the help of annular coils, the coil windings of which form components of the sender or receiver unit, and which are arranged coaxially to the axis of rotation of the rotor and inductively coupled is to be developed so as to generate measured values that are associated with the rotational speed.  According to the present invention, this is done in that at least one pair of annular coils is provided for supplying voltage to components on the rotor; in that at least one additional pair of annular coils is provided for the transmission of values that are to be measured on the rotor by means of a measuring system, from the rotor to the stator; in that a sensor element for scanning the rotational speed of the rotor is provided; and in that a switch-ing unit is provided, with the help of which the measured values associated with the rotational speed of the rotor can be further processed or displayed.
Patent CA-2012745-A1 (CA)
Title: Giardia lamblia-specific stool antigen, monospecific antibodies thereto, and method of diagnosis of giardiasis
Inventor: ROSOFF JOHN D
IPC: C07K16/00
Filed: 1990-03-21
Abstract: ABSTRACT OF THE DISCLOSURE           Giardia lamblia-specific antigen (GSA 65) and monospecific antibodies thereto are disclosed along with a method for the coprodiagnosis of giardiasis in mammals.
Patent CA-2012828-A1 (CA)
Title: Molten metal filtration system and process
Inventor: CUMMINGS MICHAEL A
IPC: B22D11/117
Filed: 1990-03-22
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention relates to an improved molten metal filtration system.  The system comprises at least one filtration assembly positioned within a filter chamber intermediate a molten metal inlet and a molten metal outlet and a dam wall positioned intermediate each filtration assembly and each molten metal outlet.  Each dam wall prevents the initial molten metal used to prime the filter(s) in each filtration assembly from proceeding directly to the outlet.  Instead, the dam wall collects the initial molten metal and forms it into a pool of heated molten metal.  This pool has been found to reduce the amount of heat loss during the filtration process.  A process for using the filtration system of the present invention is also described.
Patent CA-2012958-A1 (CA)
Title: Disposable bag with hand protection
Inventor: FLEURY RICHARD L
IPC: B65D30/10
Filed: 1990-03-23
Abstract: The invention relates to a container for vomit or urine. The container includes a flattened conical paperboard funnel to which is sealably attached a bag. The funnel has a "duck-bill" valve attached to its lower end, and the valve is disposed inside the bag. A shroud or cover is sealingly attached to the outer surface of the funnel. The cover is shaped to allow easy insertion of the user's hand while providing protection for the user from contact with material which may miss the funnel during initial positioning thereof.
Patent CA-2014189-A1 (CA)
Title: Apparatus and process for direct reduction of materials in a kiln
Inventor: RIERSON DAVID W
IPC: C21B13/08
Filed: 1990-04-09
Abstract: NHL-BAI-02 Canada APPARATUS AND PROCESS FOR DIRECT REDUCTION OF                        MATERIALS IN A KILN     ABSTRACT OF THE DISCLOSURE    An apparatus for directly reducing pellets of material without melting the material includes the transporting of the pellets through drying and preheating zones on an oxidizing traveling grate and reduction in a ported rotary kiln.  There is a kiln having a first end and a second end with the first end being substantially adjacent to the heating and oxidizing component for receipt of the pellets therefrom.  The kiln is inclined downwardly and is rotated to advance the pellets through the kiln from the first end to the second end thereof.  The kiln includes an induration zone for indur-ating the pellets.  The induration zone is adjacent to the first end and remote from the second end and extends for a substantial portion of the kiln from the first end.  The kiln includes a reduc-tion zone extending from the downstream end of the induration zone to the second end.  A device is used to inject a reducing agent into the reduction zone of its kiln for making contact with the pellets advancing through the reduction zone.  The kiln is heated to assist in a reduction of the pellets in the reduction zone.  The pellets advancing through the induration zone are substantially free of contact with the reducing agent.  The invention also in-cludes the process for directly reducing the pellets of material.
Patent CA-2014766-A1 (CA)
Title: Adjustable height work support
Inventor: HANDLER MILTON E
IPC: B25H1/06
Filed: 1990-04-18
Abstract: ABSTRACT OF THE DISCLOSURE         A workpiece support apparatus is provided with a pair of pivotable leg assemblies which are movable between a first, open position, and a second, closed position.  A releasable latch member is provided for holding the leg assemblies in a selected one of the open and closed positions.  The apparatus includes a vertically adjustable work support assembly which can be locked at a desired height.
Patent CA-2015510-A1 (CA)
Inventor: CARLSON JAMES R
IPC: F25D23/02
Filed: 1990-04-26
Abstract: A door handle assembly of a household refrigerator having a stiffener member with an elongated body made of rigid metal in the shape of an upwardly open channel with spaced apart legs including a first section offset from a second section to act as the gripping section and having spaced apart fastener receiving apertures.  The first section has a molded soft elastomeric covering on the outside with apertures in alignment with the apertures in the stiffener member.  A first decorative trim member having an outer and inner side with a contour to receive the legs of the channel of the first section of the stiffener member and including side walls overlapping the upper edge of the legs and elastomeric covering.  The trim member has an open upwardly facing recess area in the outer side with apertures in alignment with the apertures in the stiffener member.  There is an elongated metal plate dimensioned to be nested in the recess area of the decorative trim member and having threaded fastener receiving apertures in alignment with the apertures in the decorative trim member and stiffener member.  A second decorative trim member with an upwardly open channel surrounds the base and both legs of the channel of the second section and has one end secured to the decorative trim covering the first section and the other end secured to a trim end cap.  A downwardly open channel shaped member is secured to the upwardly open channel of the second decorative trim member.  Threaded fasteners pass through the apertures and threadedly engage the fastener receiving aperture in the elongated metal plate to rigidly assemble the components together as a subassembly for installation on a refrigerator door.
Patent CA-2017175-A1 (CA)
Inventor: KOUZAI FUMIO
IPC: B41J2/335
Filed: 1990-05-18
Abstract: ABSTRACT OF THE DISCLOSURE       A thermal head characterized by comprising: a heating resistor layer formed on a glaze layer formed on an insulating substrate so as to rise thereform; electrodes connected to inclined surface portions of the heating resistor layer which is raised by the glaze layer for passing a current to the heating resistor layer so as to energize the heating resistor layer; and step portions formed on surface ends of the electrodes on the inclined surface portions, the surface ends being not in contact with the heating resistorlayer, so that projection of edges of the electrodes due to the rising of the glaze layer and the thickness of the electrodes are suppressed by the step portions.
Patent CA-2020307-A1 (CA)
Inventor: ASBECK LUTZ S
IPC: C11B13/02
Filed: 1990-07-03
Abstract: P HP/LS/Uni-55 ABSTRACT       The invention relates to a process for splitting soapstock, comprising the steps of mixing the soapstock with a soap splitting acid, and of separating the acid water phase formed from the oil phase, characterized in that the mixture of the soapstock and the soap splitting agent are subjected to a high temperature treatment at or above 100°C during a residence time equal to or more than 2 minutes.            *****
Patent CA-2022025-A1 (CA)
Inventor: SHAH RASHMIKANT P
IPC: B60G11/10
Filed: 1990-07-26
Abstract: A variable rate leaf spring construction for a vehicle including a composite leaf spring composed of fiber reinforced resin.  The ends of the spring are adapted to be connected to the frame of the vehicle and an axle is mounted to the central portion of the spring.  A resilient bumper is mounted on the frame and is disposed to be engaged by the spring as a load is applied to the frame.  The bumper is tapered downwardly and the lower end of the bumper terminates in a gener-ally rounded tip.  The rounded tip provides a low or soft spring rate on initial contact with the leaf spring, while further loading will compress the bumper to provide a higher spring rate.
Patent CA-2024217-A1 (CA)
Title: 3-phenylbenzofuran-2-ones
Inventor: DUBS PAUL
IPC: C09K15/08
Filed: 1990-08-29
Abstract: Novel compounds of the formula I   (see formula I) in which R1 is C13-C30alkyl, R2 is hydrogen, C1-C10alkyl, C5-C12cycloalkyl, C5-C7cycloalkyl which is substituted by C1-C4alkyl, or is phenyl or C7-C12phenylalkyl, R3 is hydrogen or C1-C4alkyl and Z is phenyl, phenyl which is substituted by C1-C8alkyl, C1-C4alkoxy or chlorine, a group (see formula I) in which n is 1 or 2 or a group (see formula I) in which the radicals A independently of one another are C1-C8alkyl, methoxy or ethoxy, are suitable for stabilizing organic material against oxidative, thermal and actinic degradation.
Patent CA-2025722-A1 (CA)
Title: Locking device for rectilinear or circular displacement mechanical jacks
Inventor: DROULON GEORGES
IPC: B60N2/90
Filed: 1990-09-19
Abstract: A B S T R A C T       The device comprises at least one rod normally locked by notched rollers mounted on pins and cooperating with at least one V-shaped bearing plate having toothed ramps, and the vertical displacement of which is made by rotation of a cam driven by a set of studs rigid with a circular member, with control means being further provided to drive this  circular member.
Patent CA-2026947-A1 (CA)
Inventor: NICHOLS WILLIAM R
IPC: B01D24/22
Filed: 1990-10-04
Abstract: Improved methods are disclosed for cleansing a plurality of seriate filter beds in automatic backwash filtering systems by backwashing the beds one at a time with backwash liquid from an effluent channel common to seriate effluent ports of the plurality of filter beds and pumping backwash liquid seriatim through separate effluent ports of individual filter beds and then flowing filtered effluent from each bed through its effluent port into the effluent channel, repeating such steps of backwashing and flowing filtered effluent on individual filter beds until all the filter beds in the system have been backwashed wherein, simultaneously with the backwashing of a second bed, waste liquid from the first bed is pumped through its port while the waste liquid is monitored for turbidity and such waste liquid pumping is continued until the turbidity thereof reaches a predetermined low level. Meanwhile, the cleansing operation on the second bed is prevented from moving to a third bed until the turbidity of the waste liquid from the first bed reaches the predetermined low level. Such monitor control operation is applied to third and further ports until all filter beds in the system have been cleansed.
Patent CA-2027871-A1 (CA)
IPC: A61B19/00
Filed: 1990-10-17
Abstract: A device for tracking catheters includes an oscillator which is coupled to a transmit coil. The transmit coil is rotated in a direction transverse to the longitudinal axis of the transmit coil. A receive coil situated on the guide wire of a catheter inserted into a patient's body receives the signal transmitted from the transmit coil. A rectifier rectifies the received signal, and a filter filters the rectified received signal. A strobe circuit provides strobes of light in response to the rectified received signal and cooperates with bar image forming circuitry and structure to provide an image of a bar which is aligned with the longitudinal axis of the receive coil, which is indicative of the orientation of the catheter and guide wire on which the receive coil is situated. A bar display indicates the relative proximity of the transmit coil to the receive coil, and a numeric display provides a read-out of the distance between the transmit coil and the receive coil.
Patent CA-2027987-A1 (CA)
Title: Knuckle pin retainer for railway vehicle coupler
Inventor: ALTHERR RUSSELL G
IPC: B61G3/06
Filed: 1990-10-18
Abstract: An improved railway vehicle coupler head is provided having knuckle pin retaining means which are free to fully rotate with the knuckle pin to enable continuous rotation of the knuckle pin during use.  An elastic ring located within a circumferential groove on a bottom portion of the knuckle pin precludes the knuckle pin from unintentional upward removal during use while allowing for continuous rotation therewithin.  The continuous rotation of the knuckle pin allows for the distribution of stress about the circumference of a knuckle pin resulting in a longer fatigue life for the knuckle pin.
Patent CA-2028315-A1 (CA)
Title: Device to crush and extract oil from oil filters
Inventor: WOOD KEVIN L
IPC: B30B9/32
Filed: 1990-10-23
Abstract: Abstract of the Disclosure The invented device includes a chamber in which articles to be crushed are placed, a bulkhead at one end of the chamber, a plunger operating in the chamber to compress articles against the bulkhead, a collection area adjacent to the chamber for collecting liquid extracted from the articles and also for collecting the articles after they have been crushed, and a plate that sweeps any liquid and the articles from the collection area into appropriate receptacles.
Patent CA-2030533-A1 (CA)
Title: Method and apparatus for conversion of outline characters to bitmap characters
Inventor: COLLINS JOHN S
IPC: B41J5/44
Filed: 1990-02-22
Abstract: An outline representation of a character or symbol is treated as being composed of a set of zones formed in both the horizontal and vertical directions. The zones are completely character-specific. Each zone defines the extent of some feature of the character. The boundaries of the zones are mapped to specific pixel locations in a bitmap em-square of selected resolution and size.  Additional interpolation zones are defined which are used to map all the points on the outline representation of the character that are contained within the interpolation zone, but do not coincide with a control edge, from the positions in the high-resolution em-square to a corrresponding position in the low-resolution em-square.  To maintain relationships between features, constraint functions may be defined which regulate the size of the control zones for a character at predetermined sizes. Control zones and interpolation zones are all derivatively linked to a basic set of horizontal and vertical control edges at the outline description level.  Consequently, the number of computations needed is reduced and the speed with which a bitmap can be generated from the outline representation is increased.
Patent CA-2036821-A1 (CA)
Inventor: STRANSKY LARRY W
IPC: F02K3/075
Filed: 1991-02-21
Abstract: Patent 13DV-9594 Abstract A  bypass  valve  system  includes  an  annular frame   defining  a  cavity  and  having  an  intermediate casing with an annular opening including  a  plurality  of bypass   valve   doors   disposed   therein. An  annular actuation ring is disposed  in  the  frame  cavity  and  a plurality  of  space  links is pivotally connected between the ring and the bypass valve doors.  Each  of  the  space links   includes   a   longitudinal  axis  and  means  are provided for rotating the actuation ring between  a  first position  wherein  each link longitudinal axis has a first inclination angle and the doors are in a  first  position, and   a  ring  second  position  wherein  the  space  link longitudinal axis has  a  second  inclination  angle  less than  the  first inclination angle so that the links pivot the doors about a door first end to position the  door  in a door second position.
Patent CA-2038269-A1 (CA)
Title: Light-sensitive silver halide photographic material
Inventor: SATO HIROKAZU
IPC: G03C7/305
Filed: 1991-03-14
Abstract: Abstract:            Disclosed is a light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, characterized in that at least one layer of the above silver halide emulsion layers contains a compound represented by the following formula (I):                             (I) wherein n represents 0 or 1; A represents a compound residue which cleaves a bonding to Time in the case of n=1 or a compound residue which cleaves one of bond-ings to FL in the case of n = 0; Time represents a timing group which cleaves a bonding to FL after cleavage from A; and FL represents a compound residue which emits fluorescence by cleavage of a bonding to Time in the case of n = 1 and a compound residue which emits fluorescence by cleavage of one of bondings to A in the case of n = 0.
Patent CA-2039439-A1 (CA)
Title: Intank fuel heater
Inventor: HURNER ERWIN E
IPC: B60K15/03
Filed: 1991-03-28
Abstract: A fuel heater formed from an elongated unitary structure which defines a fuel channel passing through the length thereof and which defines in the bottom thereof a fuel intake. The unitary structure also defines a heating fluid inlet and outlet on one side of the fuel channel which communicate with one another on that one side of the fuel channel.
Patent CA-2040057-A1 (CA)
Title: Multiple caliper arms capable of independent movement
Inventor: DEATON JOHN G
IPC: E21B47/08
Filed: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE             A multiple arm caliper system for operation of a multiple arm caliper tool is set forth. It incorporates an elongate tool body having a motor means therein. The motor means operates a coupling rod connected to a resilient spring loading a piston within a cylinder. Within the cylinder, and extending through a transverse head defining the cylinder, individual push rods for each caliper arm extend. The push rods are forced from the chamber by fluid pressure within the chamber. Each push rod connects through suitable pivot points to an independent bell crank which is pivotally mounted to rotate each arm. Fluid pressure within the chamber is provided by the motor operating through a push rod which couples through a coil spring in the preferred embodiment to the chamber.
Patent CA-2042147-A1 (CA)
Title: Hole-trap-compensated scintillator material
Inventor: TSOUKALA VENETA G
IPC: C09K11/00
Filed: 1991-05-09
Abstract: RD-20,194 HOLE-TRAP-COMPENSATED SCINTILLATOR                               MATERIAL                Abstract of the Disclosure Afterglow in a luminescent material in which a significant factor in afterglow is the release of holes from hole traps in the scintillator material is substantially reduced by adding a hole-trapping species to the scintillator composition which successfully competes with the hole traps in the basic scintillator composition.  In gadolinium gallium garnet activated with chromium, the addition of cerium, terbium or praseodymium reduces afterglow in this manner.