baber/WOPTO huggingface dataset:
Patent CA-2002138-A1 (CA)
Inventor: YAMAMOTO SUSUMU
IPC: C21D9/02
Filed: 1989-11-02
Abstract: TITLE OF THE INVENTION    HIGH-STRENGTH COIL SPRING AND METHOD OF    PRODUCING SAME     ABSTRACT OF THE DISCLOSURE     The present invention relates to a high-strength coil spring useful for an engine and other high-strength springs requiring a high fatigue-resistance and a method of producing the same.    In general, a higher tensile strength is desired for spring materials but it has been known that if a tensile strength exceeds a certain limit, a toughness and a fatigue resistance are contrarily reduced.    In addition, a coil spring has been used after forming and then being subjected to a quenching treatment followed by being subjected to a shot peening treatment to add a compressive residual stress to a surface thereof but an effective shot peening treatment gives a surface roughness Rmax of 6 to 20 µm, so that not only it has been impossible to remove surface defects having a surface rough-ness of 6 to 20 µm or less but also impressions due to the shot peening have covered the surface defects to be turned into injured portions and fatigue nuclei in many cases.    In view of the above description, the present invention has found a high-strength coil spring with high fatigue resistance using a clean steel wire, such as chromium-vanadium steel wire and chromium-silicon steel wire, by forming it in the shape of a spring, quenching and tempering at lower temperatures to heighten the tensile strength, and being subjected to a shot peening treatment followed by being subjected to an electrolytic polishing treatment, which does not exert a bad influence on fatigue resistance, to remove surface defects and a method of producing the same.
Patent CA-2002216-A1 (CA)
Inventor: PIRC VLADIMIR V
IPC: G01G19/00
Filed: 1989-11-03
Abstract: A mechanism for transporting flat articles, such as envelopes, onto and across the tray of a scale. A belt is trained about a combination of rollers received within slots of the tray which in combination with clamps supported by the tray are used to transport a flat onto the weighing scale. When a flat is to be weighed, it is transported onto the tray, the rollers are withdrawn below the tray by the belt and the clamps hold the flat securely against the tray.    The tray is then oscillated and the weight of the flat is determined from the harmonic period of oscillation. Upon completion of weighing, the belt is placed into contact with the flat and rotated to remove the flat from the tray.
Patent CA-2003778-A1 (CA)
Title: Side chain liquid crystalline polymers exhibiting nonlinear optical response
Inventor: EAST ANTHONY J
IPC: C09K19/40
Filed: 1989-11-24
Abstract: ABSTRACT OF THE DISCLOSURE        This invention provides novel side chain liquid crystalline polymers.  An invention polymer exhibits nonlinear optical response, and has utility as a transparent nonlinear optical component in optical light switch and light modulator devices.        A present invention side chain liquid crystalline polymer is illustrated by the following acrylate structure with pendant mesogenic side chains:
Patent CA-2005260-A1 (CA)
IPC: H04M1/00
Filed: 1989-12-12
Abstract: TELEPHONE RINGING DETECTOR Abstract To accurately detect the short bursts of distinctive ringing signals within 100 milliseconds, a magnitude comparator produces a binary signal indicative of whether the instanuneous tip-ring voltage exceeds a predetermined magnitude. The binary signal is integrated over a predetermined period of time controlled by a timer. If the time integral is below a first predetermined value, the absence of ringing is detected; if above a second predetermined value, ringing is detected; if in between, the integrating interval is extended until the integral falls outside the two values.
Patent CA-2006934-A1 (CA)
IPC: H01H33/95
Filed: 1989-12-29
Abstract: High and medium voltage gas-blast circuit-breaker comprising a pressurised dielectric gas-filled cylindrical insulating surround, a main stationary contact (2), a stationary arc contact (3) and a movable gadget connected to an operating member comprising a main moving contact (5A), a moving arc contact (4A) and a blast cylinder (5) associated with a blast nozzle (6) and co-operating with a first piston (13), a second piston (14) integral with the movable gadget and sliding in a second stationary cylinder (8B), characterised in that the second piston (14) has a large cross-section in relation to the cross-section of the blast cylinder, the said second piston being associated with means (15) of low charge loss communication with the arc zone, the said second piston being drilled with calibrated orifices (14C) in order to limit the pressure on that face of the said piston receiving the gases heated by the arc. 
<??>Applications to high and medium voltage circuit-breakers. 
<IMAGE>
Patent CA-2009367-A1 (CA)
Title: Continuous passive motion device for imparting a spiral motion to the digits of the hand
Inventor: GREULOCH WILLIAM
IPC: A61H1/02
Filed: 1990-02-06
Abstract: ABSTRACT           A continuous passive motion device is provided which imparts a reciprocating spiral motion to one or more fingers of a user.  The device can also be adapted for use with a thumb.  The motion is achieved by linking a rotary motion of the device to a linear motion with respect to the device of a linear actuator.
Patent CA-2012555-A1 (CA)
Title: Multi-purpose grinder
Inventor: PATTERSON JAMES
IPC: B24B3/00
Filed: 1990-03-20
Abstract: ABSTRACT          A multi-purpose grinding device for sharpening hardware ranging from scissors to saw blades.  It comprises a powered grinding wheel which can be moved and oriented in a plurality of positions relative to the item to be sharpened which is held in a fixed location on a jig.   The grinding wheel has lateral and vertical movement and can be tilted on its side.
Patent CA-2014245-A1 (CA)
Title: Closure and/or control element for a metallurgical vessel
Inventor: BRUCKNER RAIMUND
IPC: B22D41/14
Filed: 1990-04-10
Abstract: ABSTRACT           CLOSURE AND/OR CONTROL ELEMENT FOR       A METALLURGICAL VESSEL            A closure and/or control element for the tapping of liquid metal melt from a metallurgical vessel has an inner tube (2) secured to the vessel (5) with at least one openings (14).  An end edge (15) of a movable outer tube (3) extends around the inner tube (2).  The outer tube (3) is movable from a closed position into an open position of the opening (14).  In order to avoid plugs of the metal melt being able to form in openings (14) in the outer tube (3),  the relative position of the opening (14)  in the inner tube (2) and the end edge (15) of the outer tube (3) is so arranged that the end edge (15) passes over the opening (14) when the outer tube (3)  is moved.   When viewed in the longitudinal axial direction (13), the end edge (15) is on the one side of the opening (14),  when in the open position, and on the opposing side of the opening (14), when in the closed position.            (Figure 2)
Patent CA-2014623-A1 (CA)
Inventor: JONTE PATRICK B
IPC: B05B1/30
Filed: 1990-04-17
Abstract: A hand held spray nozzle (10) for a kitchen faucet has a valve housing (12) with an elongated passage (20) and a valve seat (28). A valve element (36) has a frusto-conical elastomeric sleeve (40) engageable to the valve seat (36) and has a camming surface (44) mounted upstream from the elastomeric sleeve (40) and a stabilizer flange (48) mounted further upstream from the camming surface (40) and a spring seating end (50) which seats a biasing spring (58) which biases the valve element to the closed position. A push rod (62) engages the camming surface (44). The push rod (62) is canted from the vertical position at approximately (60) degrees and has an outer end (75) engaging a pivoting handle (78) where the thumb engaging section (82) is at a wall opposite abutment section (76) which engages the outer end (75) of the push rod (62).
Patent CA-2018905-A1 (CA)
Title: Security cap and doser for high density semi-fluid products
Inventor: ALAVARADO LA ROSA JAIME
IPC: B65D47/02
Filed: 1990-06-13
Abstract: ABSTRACT         SECURITY CAP AND DOSER FOR HIGH DENSITY SEMI-FLUID PRODUCTS         It consists in placing a part preferentially manufactured in rigid breakable plastics which is fitted in two protrusions existing in the bottle neck, being provided with a central hole and two upper and lower annular flaps which coincide with the container's mouth and, on its upper part, with an annular flap existing in the central area from the part's lower side which is linked by fitting with some side stubs emerging from some helicoidal channels, the assembly being closed by the action of an upright emerging pivot which is closed on its uppermost part.
Patent CA-2022157-A1 (CA)
Title: Blood container for medical apparatus
Inventor: VESCOVINI PIETRO
IPC: A61M1/14
Filed: 1990-07-27
Abstract: A blood container comprises a generally cylindrically shaped outer housing having an upper portion, a lower portion and a bottom portion which declines downwardly to an outlet 3.   A generally cylindrically shaped filter 2 is enclosed concentrically within the upper portion of outer housing for receiving blood at the top thereof and discharging filtered blood at the wall and base of the filter.   A generally cylindrically shaped inner housing extending from the base of the filter to the bottom portion of the outer housing.  The container particularly  includes  means  for directing and restricting the flow of blood from the base of the filter for a gradual and smooth descent to the outlet which avoids the creation of bubbles and avoids any blood cell damage.
Patent CA-2023801-A1 (CA)
Inventor: SCHMIDT AXEL
IPC: C07H17/00
Filed: 1990-08-22
Abstract: ABSTRACT          Process and reagent for the specific determination of pancreatic .alpha.-amylase The present invention provides a process for the specific determination of pancreatic .alpha.-amylase in the presence of salivary .alpha.-amylase in body fluids by reaction with a system for the detection of .alpha.-amylase with the use of an inhibitor for salivary .alpha.-amylase, wherein, as substrate, there is used a compound of the general formula:-                     (I) in which R1 is a straight-chained or branched alkyl or alkoyl radical containing up to 6 carbon atoms, a cycloalkyl or cycloalkoxyl radical containing 3 to 6 carbon atoms or a benzoyl, benzyl or phenyl radical which is optionally hydrophilically substituted, R2 is a hydrogen atom or in which R1 and R2 together form a methylene bridge, the hydrogen atoms of which, independently of one another, can each be substituted by an alkyl radical containing up to 5 carbon atoms or a phenyl radical, Gluc is a glucose molecule, n is 1, 2 or 3 and X is an optically determinable residue.     The present invention also provides a reagent for the specific determination of pancreatic .alpha.-amylase, as well as new compounds for use in the above process and reagent.
Patent CA-2023998-A1 (CA)
Title: Apparatus and method for guaranteeing strobe separation timing
Inventor: LEWIS THOMAS F
IPC: G06F13/42
Filed: 1990-08-24
Abstract: ABSTRACT OF DISCLOSURE An interface between a central processing unit (CPU) and  a  peripheral  device  is  provided  which  ensures compatibility between existing software for the peripheral device and a CPU of any speed.  The interface waveshapes read or write strobe signals in a transfer cycle between the peripheral  device  and the CPU in order to  ensure timing  parameters  of  the  peripheral  device  are  not violated by fast CPUs.  If the waveshaping causes a change in the timing between first and second consecutive read or write strobe signals, the interface provides a wait signal to the CPU for the purpose of instructing it to extend the transfer  cycle  of  the  second  strobe  signal.   In  the illustrated  embodiment,  an  interface  according  to  the invention  is  part  of  a  video  interface  connecting  a microprocessor unit (MPU)  and a video digital-to-analog converter (video DAC).  Writing or reading color data to or from the video DAC occurs by way of the interface of the invention.  The MPU is slowed while it writes or reads color data only when it is required to prevent violation of  the  timing parameters  of  the  video  DAC.   In  this regard,  slower MPUs are not penalized by the invention since wait states are inserted into a transfer cycle only when it is necessary to re-space consecutive read or write strobe  signals  to  prevent  the  violation  of  timing parameters.
Patent CA-2030197-A1 (CA)
Title: Deinking composition for water soluble flexographic printing inks
Inventor: BORTOLOMIOL RENZO
IPC: D21C5/02
Filed: 1990-11-16
Abstract: A composition able to effect the thorough removal of water soluble flexographic printing inks and of any other type of ink from fibres to be recycled, comprising: a) from 10 to 90%, and preferably 10 to 80% by weight terpene extracts, anthocyanins, glucosides or sapogenins; b) from 10 to 70%, and preferably 10 to 60% by weight oils of leguminosae or phosphoprotides; c) from 5 to 60%, and preferably 15 to 35% by weight monocarboxylic acid having 3 to 10 carbon atoms; and optionally, d) from 1 to 40%, and preferably 2 to 30% by weight glycol ethers.
Patent CA-2034232-A1 (CA)
Title: Weathering-resistant polymer alloys
Inventor: BREKNER MICHAEL-JOACHIM
IPC: C08L67/00
Filed: 1991-01-15
Abstract: HOE: 90/F 009 ABSTRACT OF THE DISCLOSURE            Weathering-resistant polymer alloys For optical applications, transparent amorphous thermo-plastics, such as polyaryl ether ketones, are of con-siderable interest. However, polyaryl ether ketones have inadequate W stability and weathering resistance while amorphous polyaryl esters do not have these negative properties. The properties can be improved by means of polymer  alloys,  giving weathering-resistant materials from homogeneously mixed polymers which comprise at least one amorphous polyaryl ether ketone and at least one amorphous polyaryl ester.
Patent CA-2035115-A1 (CA)
Title: Aircraft deicing apparatus and method
Inventor: PHILLIPS DAVID L
IPC: B64D15/08
Filed: 1991-01-28
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus and method for applying a heated mixture of propylene glycol based aircraft deicing fluid and water to an aircraft.  Propylene glycol based aircraft deicing fluid is heated by means of a directly fired combustion heater.  The heated aircraft deicing fluid is mixed with hot water to form a deicing mixture for deicing aircraft.  Diaphragm type positive displacement pumps, having controllable volumetric outputs, combine the heated aircraft deicing fluid and the heated water in a desired ratio.  The volumetric outputs of the pumps can be varied to achieve a desired proportion of aircraft deicing fluid to water.
Patent CA-2036266-A1 (CA)
Inventor: KERKER ROBERT P JR
IPC: G06T15/00
Filed: 1991-02-13
Abstract: A hierarchical data storage schema is provided which associatively links  a master solid object model  in a graphics data processing system to a solid model of a sectioning object.  The associative linking provides the capability of automatically generating sectioned views when  the  master  object  is modified.  These  views  are generated at the operator's request without the necessity of having to apply sectioning objects to each one of the subsequent views.   An interactive facility is provided for creating such structures.
Patent CA-2036507-A1 (CA)
Title: 2'-deoxy-2'-methylidenecytidine dihydrate, methods for its production and compositions
Inventor: SAKATA SHINJI
IPC: A61K31/7052
Filed: 1991-02-18
Abstract: Novel stable, non-hygroscopic 2'-deoxy-2'-methylidenecytidine (1) and its methods for production, and compositions with improved solubility containing same and saccharide(s). <CHEM> '
Patent CA-2037033-A1 (CA)
Inventor: WYMAN RONALD E
IPC: B65G47/08
Filed: 1991-02-25
Abstract: Apparatus and method for arranging cartons or cases of beverages in predetermined patterns in a conveying process for stacking in tiers on pallets.  A combination of an input guide conveyor moveable between left, right, and centered positions and at least one moveably adjustable diverter bar is  utilized  to  direct  incoming  containers  along  a predetermined path through a pattern-forming zone comprised of  a  plurality  of  parallel,  power-driven  conveyors. Containers  are directed one at a time either along a dividing line path between two, adjacent, pattern-forming conveyors in overlapping relation thereto, or directly onto one of those  conveyors.   A differential  speed-control mechanism is provided in conjunction with one or more of the parallel,  pattern-forming conveyors  and  is  selectively actuated to change the speed of one conveyor of a pair of conveyors  on  which  a  container  is  being  carried  in overlapping relation to both conveyors.   Such a conveyor speed change causes the container to be turned sideways and is utilized to orient containers in desired, alternate tier patterns for stacking on pallets.
Patent CA-2038891-A1 (CA)
Title: Pizza crust cooking utensil
Inventor: KIAN LEONARD
IPC: A47J43/00
Filed: 1991-03-22
Abstract: PIZZA CRUST COOKING UTENSIL ABSTRACT OF THE DISCLOSURE A pizza crust cooking utensil for use with a pizza crust batter to partially precook a pizza crust.  The use of the utensil provides a more uniformly producible, less porous and more stable pizza crust which has better handling characteristics for home or commercial cooking, especially for cooking in a conveyor-type toaster or oven.  The utensil includes two cooking plates which align to form a hollow cooking chamber in which the crust is formed as the batter is cooked.  The invention is adaptable for use in a cooking appliance or a variety of ovens and has a transition region from the crust center to the rim to assure a well-defined rim and to stiffen the crust toward the rim for better handling.  Channels extending between the center region to the rim area of the utensil enhance batter flow.          Preferably, the generally planar center of the lower cooking plate is thicker to assure more complete, uniform and thorough cooking of the top surface of the crust.
Patent CA-2041585-A1 (CA)
Title: Basic aluminum antiperspirant active material having enhanced activity, antiperspirant active composition containing such material, and methods for preparation of such material and compositions
Inventor: VINCENTI PAUL J
IPC: C01F7/56
Filed: 1991-05-01
Abstract: Disclosed is a basic aluminum material having enhanced antiperspirant activity, the material having the empirical formula Al2(OH)6-aXa, where 0.5 ~ a ~ 5.0, and X is a univalent complex oxoanion of nitrogen, chlorine and other halogens, which forms salts with Al3+ in aqueous solution so that these salts are essentially completely dissociated, which is readily soluble in water with metallic ions in the solution, and which forms conjugate acids that are strong acids; and wherein the material is characterized by:          (a)  size exclusion high performance liquid chromatography peaks corresponding to peak 3 and peak 4 of size exclusion chromatograms formed by HPLC technique;          (b)  a peak 4 relative area of at least 25%, a peak 3 relative area of less than 60%, the sum of the relative peak 3 and peak 4 areas being at least 50%; and (c) less than 10% chromatographic peaks eluting at shorter retention times than peak 3, corresponding to peaks 1 and 2. Illustratively, the univalent oxoanion can be C10 3-, C10 4-, I0 4-, and preferably NO3-. The material is characterized by having at least 25% by weight thereof in the form of Alb polyhydroxyaquoaluminum species.  Also disclosed are antiperspirant compositions including the basic aluminum material, a zirconium, hafnium, titanium and/or tin antiperspirant active material and a neutral amino acid, and methods of forming the basic aluminum material and the antiperspirant composition.  The basic aluminum material can be formed at relatively low temperatures, without first forming a dilute solution of a basic aluminum compound, and the basic aluminum material has a stable enhanced activity in aqueous solution over a relatively long period of time.
Patent CA-2041645-A1 (CA)
Inventor: STURHAN KLAUS
IPC: B60N2/50
Filed: 1990-09-06
Abstract: The invention relates to an air sprung vehicle seat positioned by a linkage system with an electronic control mechanism which controls the air valves of the air spring in accordance with the movements of the linkage system. Using only one movement sensor, the path of movement of the seat is represented by a continuous electrical signal connected to the input of a microprocessor, which functions to compare the signal with pre-set standard values which are capable of being altered if necessary.
Patent CA-2042541-A1 (CA)
Inventor: RABENAU RICHARD
IPC: A61F2/958
Filed: 1991-05-14
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention provides an improved pressurization device for use with angioplasty balloon catheters, or the like.  The device has a novel quick release mechanism which enables rapid advancement of a threaded screw plunger to attain initial pressurization, and then the subsequent engagement of said mechanism with the threaded surface of the plunger to achieve precise control during final pressurization of the balloon catheter.  In addition, there is provided an improved and novel pressure indicating means for providing the physician with an analog readout of the pressure being applied to the balloon catheter.
Patent CA-2045143-A1 (CA)
Title: Cephalosporin derivatives
Inventor: NAKAGAWA SUSUMU
IPC: A61K31/545
Filed: 1990-11-13
Abstract: ABSTRACT OF THE DISCLOSURE   The present invention relates to a compound represented by the structural formula I:                             [I]     its pharmaceutically acceptable salt or ester, or its crystalline, which is a novel optically active compound useful as a curing agent for bacterial infections, a process for production thereof and a use thereof.
Patent CA-2047209-A1 (CA)
Title: Article separating and delivering apparatus
Inventor: MIELCAREK KENNETH S
IPC: B65H31/24
Filed: 1990-12-19
Abstract: A sheet delivery unit (10) includes an in-feed conveyor in-line coupled to a plurality of separate receivers. A horizontal conveyor (35) and an inclined conveyor (39) are vertically aligned and each includes a continuous belt run and an interrupted belt run including an upstream common portion and downstream belt forming a diverting gap (36). A pair of diverters are vertically spaced at the opposite sides of the gap and each includes diametrically spaced cam segments with a length about three times the gap length.  The diverters are rotatably mounted and the axes (32) are offset with the cam surfaces tangential to the horizontal path and with the one diverter (27) moving into the gap closely adjacent to the upstream gap end to support and carry the sheet into the uppermost two conveyor units and with the second diverter (28) spaced downstream to guide the sheet into the bottom unit.
Patent CA-2050805-A1 (CA)
Title: Burner flame sensing system and method
Inventor: CORMIER KENNETH C
IPC: F23M11/04
Filed: 1991-09-06
Abstract: The presence of a flame from a burner is determined by analyzing the signal produced by a radiation sensor aimed at a burner.  Specifically, a Fourier transformation is applied to the signal producing amplitude values for a spectrum of component frequencies produced by changes in the power of the flame over time.  A logarithmic value is derived for each of the amplitude values.  The degree of linearity of the distribution of the component frequency logarithmic amplitude values provides an indication of the flame presence.  Several parameters, including integrated linear error, linearity regression correlation and slope difference, provide an indication  of the degree of linearity.  A plurality of values for each of these parameters are produced during an interval of time.  When a given percentage of the parameter values are above their respective thresholds the flame is determined to be present, whereas when another given percentage of the parameter values are below their respective threshold the flame is determined to be extinguished.