baber/WOPTO huggingface dataset:
Patent CA-2036078-A1 (CA)
Inventor: AMANO FUMIO
IPC: H04B3/21
Filed: 1991-02-11
Abstract: A sub-band acoustic echo canceller includes a first division and decimation process part for dividing a reception signal from a line into first band signals of N channels and for decimating each of the first band signals to output decimated first band signals in a form of complex signals, where N is an integer greater than or equal to two, a second division and decimation process part for dividing a transmission signal into second band signals of N channels and for decimating each of the second band signals to output decimated second band signals in a form of complex signals, an echo canceller group made up of a group of echo cancellers for generating a pseudo echo in each band based on a corresponding one of the decimated first band signals received from the first division and decimation process part by referring to a corresponding one of the decimated second band signals received from the second division and decimation process part and for outputting a residual signal in each band by subtracting the pseudo echo of one band from the decimated second band signal of the same band, and an interpolation and synthesis process part for subjecting the residual signals received from the echo canceller group to interpolation and synthesis to output a synthesized residual signal which is transmitted to a line as the transmission signal, where the echo canceller group carries out an echo cancelling operation for each band in a complex signal region.
Patent CA-2036404-A1 (CA)
Title: Horizontal griller
Inventor: MACHADO DA SILVA AMANDIO
IPC: A47J37/06
Filed: 1991-02-15
Abstract: The present invention refers to a horizontal griller with structure in stainless steel, meant for industrial or domestic purposes, with isolated walls to prevent the loss of heat. On its upper part there is a grill placed horizontally, and at a level lower to this, placed sideways, there are the heat distributing sources, which may be provided with a ventilator to activate the circulation of heat. In parallel to the grill, below, there is a reception box for the food residues, which do not touch the heating source, therefore not producing any smokes or smells from burnt fat.
Patent CA-2038158-A1 (CA)
Inventor: PFEIFFER HELMUT
IPC: G01F23/28
Filed: 1991-03-13
Abstract: To determine and/or monitor a predetermined contents level in a container, at the height of the level to be monitored a region of the container wall is defined by a ring or frame which is attached to the outer side of the container wall in such a manner that it is in oscillatory mechanical connection with said container wall.  The region of the container wall enclosed by the ring or frame forms the diaphragm of a sensor which also comprises an electromechanical excitation transducer which when fed with an electrical voltage sets the defined diaphragm region into oscillations, and an electromechanical receiving transducer which converts the oscillations of the defined diaphragm region to an electrical AC voltage.  An evaluating circuit connected to the receiving transducer serves to initiate display and/or switching operations in dependence upon the frequency, the phase or the amplitude of the AC voltage emitted by the receiving transducer.
Patent CA-2042261-A1 (CA)
Title: Hay baler plunger projection
Inventor: GAJA JOHN
IPC: A01F15/04
Filed: 1991-05-09
Abstract: ABSTRACT OF THE DISCLOSURE    A projection for a hay bale plunger of specific dimensions was determined to be superior for baling hay, fodder and the like.  A projection with a length of about 9.25 inches (23 cm) a diameter of about 1.375 inches (3.5 cm) and a conical taper of about 2.5 inches (6 cm) was found to function best.  This left a clear hole through bales from end to end.  This hole allowed baling of wetter material, to from heavier, moister and more compact bales of superior quality.  The bales, despite their moisture content, neither heated nor grew mould.
Patent CA-2046361-A1 (CA)
Title: (6,7-substituted-8-alkoxy-1-cyclopropyl-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid-03,04) bis (acyloxy-0) borate, salts and hydrates thereof
Inventor: TAKAGI NAOMI
IPC: C07F5/02
Filed: 1991-07-05
Abstract: (6,7-Substituted-8-alkoxy-1-cyclopropyl-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid-O3,O4) bis (acyloxy-O) borate, and salts and hydrates thereof, represented by the general formula (I)   wherein X denotes a halogen atom; R denotes an aliphatic acyloxy group having 2 - 6 carbon atoms, aliphatic acyloxy group having 2 - 6 carbon atoms optionally substituted with a halogen atom, or aromatic acyloxy group having 7 - 11 carbon atoms; R1 denotes a lower alkyl group; R2 denotes a hydrogen atom, halogen atom, amino group or nitro group; Z denotes a halogen atom,   (wherein n is 1 or 2; R3 denotes hydrogen atom; a lower alkyl group, acyl group, alkoxycarbonyl group or aralkyl group; R4 and R5 each independently denote a hydrogen atom, lower alkyl group, substituted lower alkyl group, cycloalkyl group or phenyl group respectively) or   (wherein k is 0, 1 or 2; ~ is 0, 1 or 2; m is 0 or 1; R6 denotes a hydrogen atom, halogen atom, lower alkyl group or hydroxyl group; R7 denotes a hydrogen atom, lower alkyl group or substituted lower alkyl group; R8 denotes a hydrogen atom, lower alkyl group, acyl group, alkoxycarbonyl group or aralkyl group) or an azetidino group, pyrrolidino group, 3-hydroxypyrrolidino group, piperidino group, morpholino group or thiomorpholino group.  These compounds are especially useful in the preparation of quinolonecarboxylic compounds which are useful as medicaments.
Patent CA-2048400-A1 (CA)
Inventor: TSUKIMOTO TAKAYUKI
IPC: H02K35/00
Filed: 1991-08-02
Abstract: In an ultrasonic motor wherein a driving signal is applied to an electro-mechanical energy conversion element provided in a vibration member to thereby excite flexural vibrations of the same shape in the two different planes of the vibration member with a phase difference in time and thereby create rotational motion on the surface of the vibration member, thus frictionally driving a movable member which is in pressure contact with the vibration forming surface, electro-mechanical energy conversion elements for exciting the flexural vibrations are each disposed at a position whereat the sum totals of strains created in the electro-mechanical energy conversion elements are substantially equal to each other.
Patent CA-2049835-A1 (CA)
Title: Spacer sleeve
Inventor: ECKHARDT ULI
IPC: F16J15/34
Filed: 1991-08-26
Abstract: ABSTRACT A sleeve element is installed between two hollow gear shafts which are rotatably coupled relatively to each other by a bearing.  The sleeve has a hollow cylindrical body which is received inside one of the shafts.  The sleeve has a plurality of slots in one end thereof which permit lubricating oil to flow to the bearing.  A plurality of spring elements project from the other end of the cylindrical body.  The spring elements engage the one shaft and are biassed to urge the one end of the body against an end surface of the other shafts. The force of the spring elements is active at least during primary assembly of the shafts.  At a particular temperature, such as the operating temperature of the shafts, the spring elements loose their force.  Preferably, the spring elements and the cylindrical body are integrally formed of one part.
Patent CA-2053031-A1 (CA)
Inventor: HORITA YOSHIYUKI
IPC: A44B11/25
Filed: 1991-10-09
Abstract: A buckle assembly is disclosed for use in fastening opposite ends of a strap, belt, suspender and the like, which buckle assembly comprises a plug member, a socket member engageable therewith and a tension control means adapted to reciprocate the plug member back and forth through the socket member for a predetermined distance in response to tensile forces applied to the straps.  A tension adjusting means is further provided to adjust the compressive tension of the tension control means to a desired extent.
Patent CA-2055764-A1 (CA)
Inventor: MARTIGNAGO DINO
IPC: A43C11/14
Filed: 1991-11-19
Abstract: SECURING DEVICE, PARTICULARLY FOR FOOTWEAR   ABSTRACT OF THE DISCLOSURE       The device includes a base which is rigidly connectable with  a  first  flap  of an item  of  footwear;  a  pair  of shoulders protrude from the base for the pivoting of a lever arm  which is provided with a pivot for a  support  provided with a ratchet system for engagement with a toothed tab. The support and the lever arm have first and second longitudinal slots  which   accommodate  the  pivot,   which   interacts selectively with seats defined on the shoulders. The tab  is furthermore removably connectable with a second flap of  the item  of footwear. The device allows to achieve a rapid  and easy securing and release of the first and second flaps  and has  a  considerable safety during closure, which  makes  it free from accidental openings due for example to the contact of the lever arm with the ground.
Patent CA-2057087-A1 (CA)
Title: Composition and method for isolation and purification of immunoglobulin m
Inventor: MALLIA A KRISHNA
IPC: C07K16/00
Filed: 1991-12-05
Abstract: Abstract of the Disclosure Preparation of a composite of mannan binding protein attached to an insoluble, support matrix is accomplished by reacting cyanogen bromide activated beaded agarose with a buf-fered solution of mannan binding protein isolated from rabbit serum. The composite has utility as an affinity sorbent for IgM when divalent metal ions are incorporated in the bind-ing buffer. The composite does not show cross-reactivity (binding) with immunoglobulins of the G class.
Patent CA-2058850-A1 (CA)
Title: High speed vertical single filer
Inventor: LENHART RONALD A
IPC: B65G51/03
Filed: 1992-01-07
Abstract: "HIGH SPEED VERTICAL SINGLE FILER"                         ABSTRACT    In accordance with this invention, a method of transporting upright cylindrical articles is provided wherein the articles are fed from a mass at an upstream location into single file at a downstream location.  The articles are fed in mass into the infeed of the deck of an air table.  A lower air pressure zone is created on a first lateral portion of the deck plate between the upstream and downstream locations.  A higher air pressure zone is created on a second lateral portion of the deck plate to cause the articles to move into single file in the first lateral portion.  Velocity air pressure is used to move the single filed articles to a downstream location.  The articles are held in single file with a directional mass volume of air.  The pressure differential between the high and low pressure zones can be adjusted to vary the density of the articles at the infeed.  A higher air pressure zone can be created in a downstream single file area to cause articles which are not in single file to move upstream to be placed in single file.
Patent CA-2059685-A1 (CA)
Title: High chloride silver iodohalide emulsions containing an increased proportion of iodide
Inventor: MASKASKY JOE E
IPC: G03C1/035
Filed: 1992-01-20
Abstract: HIGH CHLORIDE SILVER IODOHALIDE EMULSIONS CONTAINING AN INCREASED PROPORTION OF IODIDE             Abstract of the Disclosure A photographic silver halide emulsion comprised of a high chloride silver iodohalide grain structure in which the proportion of iodide has been increased.
Patent CA-2060306-A1 (CA)
Title: Roll ice shoe
Inventor: SAUNDERS ADAH W
IPC: A63C1/00
Filed: 1992-01-29
Abstract: ABSTRACT OF THE DISCLOSURE     A combination roller skate and ice skate is provided and consists of a boot affixed to top of an elongated base member and a structure for removably attaching a roller skate insert to bottom of the base member so that a person wearing the boot can roller skate.  The structure is also for removably attaching an ice skate insert to bottom of the base member so that the person wearing the boot can ice skate.
Patent CA-2062028-A1 (CA)
Inventor: PLACER ANTON
IPC: E05D7/04
Filed: 1992-01-21
Abstract: ABSTRACT   The invention belongs to the area of fittings for furniture, and relates to a dismountable and adjustable hinge for the incorporation into units of furniture. The hinge comprises a hinge arm (1) tightened to a base plate (4) by means of a tightening screw (6), whose neck (6''') limiting a trapezoidal recess (6") at each inclination of the hinge arm (1) cooperates with shoulder sections (10) of a longitudinal recess (10') of an intermediate step (17) of the base plate (4). Into a female thread (14) there is screwed a threaded bolt (5) for adjusting the inclination of the hinge arm (1) with respect to the base plate (4), resting by its bottom surface (5') on a first step (16) of the base plate (4), for the limitation of shifting of the bolt (5) in longitudinal direction there being provided an abutment (22). In order to realize stable and safe interconnection of the base plate (4) and the hinge arm (1) at each inclination, an arcuated depression (13) with downwardly oriented transversal ribs (12) is foreseen, the ribs (12) continuously cooperating with ribs (11) foreseen on the upper surfaces of sidewalls of a third step (18) of the base plate (4).            (Fig. 2)
Patent CA-2062856-A1 (CA)
Title: A process for producing a synthetic detergent soap base from n-acyl sarcosine
Inventor: CRUDDEN JOSEPH J
IPC: C11D1/10
Filed: 1992-03-12
Abstract: ABSTRACT        A method of producing a synthetic detergent soap base, comprising neutralizing N-acyl sarcosine at an elevated temperature with a fatty acid salt to the desired pH, and allowing the mixture to cool.  In a second embodiment, the method comprises dissolving in an N-acyl sarcosine at an elevated temperature a fatty acid, and neutralizing the mixture with base at a temperature sufficient to maintain fluidity to a pH of from about 4.5 to about 9.5.  The resulting product is non-irritating and non-drying, and exhibits apparent skin substantivity and pleasant skin feel.
Patent CA-2063403-A1 (CA)
IPC: H04B1/04
Filed: 1990-08-13
Abstract: 2063403 9103108 PCTABS00003 A gain/phase compensation method and apparatus for a linear amplifier feedback loop in a transmitter (100). The transmitter (100) includes an input (102 or 110), a linear amplifier (143), and a modulator (142), to provide a modulated carrier-frequency output signal. The transmitter also comprises a feedback detector (154), coupled to receive the output signal and also coupled to the input. The feedback detector (120) produces a detected baseband feedback signal and applies the feedback signal to the input. The transmitter (100) of the present invention further comprises stabilizing means (118 and 130), coupled to the input (102 or 110) and to the linear amplifier (143), for reducing the open-loop gain of the linear amplifier (143) to a value lower than one for all frequencies where the feedback loop causes the phase of the baseband input signal to shift by more than 180 degrees.
Patent CA-2064333-A1 (CA)
Title: "swipe": 2 supporting-head window cleaning device
Inventor: VAZ LENWORTH M
IPC: A47L1/06
Filed: 1992-03-27
Abstract: March 23, 1992 "SWIPE":  2 SUPPORTING HEAD WINDOW CLEANING DEVICE          LENWORTH MAXWELL VAZ     ABSTRACT     THIS INVENTION RELATES TO A WINDOW CLEANING DEVICE, IN PARTICULAR A SQUEEGEE, HAVING A RIGID ELONGATED HANDLE, WITH TWO SUPPORTING HEADS POSITIONED HORIZONTALLY AND PARALLEL TO EACH OTHER, RESEMBLING THE LETTER "H".  THE LOWER HORIZONTAL SUPPORTING HEAD CONTAINING THE SPONGE, IS CONNECTED TO A SHORT VERTICAL EXTENSION ANGLED SLIGHTLY UPWARD, SECURING THE SECOND HORIZONTAL SUPPORTING HEAD HAVING THE SQUEEGEE.  THE SPONGE AND SQUEEGEE FACE THE SAME          DIRECTION.
Patent CA-2065798-A1 (CA)
Title: Use of 2-iminothiazolidin-4-one derivatives as novel pharmaceutical active ingredients
Inventor: FEIGE ULRICH
IPC: A61K31/425
Filed: 1992-04-10
Abstract: Use of 2-iminothiazolidin-4-one derivatives as novel pharmaceutical active ingredients Abstract Compounds of the formula I    (I), in which R1 is lower alk-2-en-1-yl, lower alk-3-en-2-yl, lower alk-2-yn-1-yl or lower alkyl substituted in the 2,3-position by radicals which can be eliminated to give a double bond, R2 is hydrogen and R3 is methyl which is unsubstituted or substituted by radicals which can be eliminated together with hydrogen R2 to give a double bond or R2 and R3 are both hydrogen or lower alkyl or are together methylene and R4 is a group of the formula Ia, Ib or Ic   in which R5 is hydrogen, lower alkyl, lower alk-2-en-1-yl or lower alk-2-yn-1-yl and R6 is a group of the formula Id or Ie   (Id)                (Ie) in which R1, R2, R3 and R5 are as defined, and their pharmaceutically acceptable salts can be used in a novel manner for the treatment of diseases of the rheumatoid type.
Patent CA-2067436-A1 (CA)
Title: Demodulation of a signal transmitted over a fading channel using phase estimation, method and apparatus therefor
Inventor: ZAGLOUL HATIM
IPC: H04B7/005
Filed: 1992-04-28
Abstract: A method  and  apparatus  for  estimating the  phase differential of a transmitted electromagnetic signal from  the  amplitude  envelope  of  the  signal.  The apparatus  includes a sampler,  phase estimator and demodulator.  The  phase  estimator  uses  a  Hilbert transform. An approximation of the Hilbert transform may also be used to estimate the phase differential with sign ambiguity. The method of determining the sign ambiguity and the approximation of the Hilbert transform may be applied to time domain or frequency domain signals. The phase differential is estimated by taking the differential of a function of the envelope, and   applying  the   Hilbert   transform  to   this differential. The resulting phase differential, after correction  for  sign  ambiguity  may  be  used  to demodulate the received signal.  Sign ambiguity is resolved by comparing the estimated phase with the ideal phase.
Patent CA-2067983-A1 (CA)
Title: Formaldehyde-free crosslinking emulsion polymer systems based on vinyl ester dialkoxyhydroxyethyl acrylamide co- and terpolymers
Inventor: CHANDRAN RAMA S
IPC: D04H1/64
Filed: 1992-05-05
Abstract: Formaldehyde free crosslinking emulsion polymers are prepared by the addition of N-(2,2-dialkoxy-1-hydroxy)ethyl acrylamide to a vinyl ester based polymer. The resultant emulsions can be used as binders for nonwovens or fiberfill or as woodworking adhesives.
Patent CA-2069081-A1 (CA)
IPC: A01C5/06
Filed: 1992-05-20
Abstract: Apparatus for depositing seed and fertilizer in the ground comprises, a sectional frame, a seed supply and a fertilizer supply mounted on the frame, a multiplicity of unique fluid controlled seed row assemblies pivotally mounted on the frame to receive seed and fertilizer from their supplies, a fluid pressure source, a first control means for controlling fluid flowing from the source to the seed row assemblies, an identical second control means for controlling fluid flowing from the source to fluid controlled pivotal sections of the sectioned frame.  The unique seed row assemblies including a frame assembly mounting, an elongated draw arm pivotally connected to the frame assembly mounting, a ground engaging assembly fixed to the elongated draw arm, the ground engaging assembly including a mounting arm, a ground engaging fertilizer dispenser pivotally mounted on the arm, a ground engaging seed dispenser adjustably mounted on the arm and a packing/depth gauge wheel rotatably mounted and laterally adjustable on the arm, a two way seed row assembly biasing cylinder and piston assembly pivotally connected to the frame assembly mounting and to the ground engaging fertilizer dispenser to bias the seed row assembly in a working position or to bias the seed row assembly in a transport position.
Patent CA-2069442-A1 (CA)
Title: Method for increasing fertility in males
Inventor: ATTIE KENNETH M
IPC: A61P15/00
Filed: 1991-01-04
Abstract: A method is provided for increasing fertility in a male mammal exhibiting germinal epithelium failure comprising administering to the mammal an effective amount of activin. Preferably, the administration is to the testis of the mammal.
Patent CA-2069901-A1 (CA)
Title: Pyrazolines for protecting crop plants against herbicides
Inventor: BIERINGER HERMANN
IPC: A01N31/08
Filed: 1990-11-26
Abstract: Pyrazolines for the protection of crop plants against herbicides Compounds of the formula (I) (see formula I) where X, n, R1, R2 and R3 are as defined in claim 1 are suitable as antidotes against phytotoxic secondary effects of herbicides in crop plants without adversely affecting the action of the herbicides against harmful plants.
Patent CA-2070023-A1 (CA)
Title: Reclosable plastic bags having improved lip sidewelds and method of making same
Inventor: WOODS JAMIE M
IPC: B65D33/00
Filed: 1992-05-29
Abstract: ABSTRACT     A reclosable plastic bag including grip strips of a plurality of spaced apart ridges extending generally parallel to one another over the width of the bag on opposed lips of the bag, wherein the ridges are characterized in cross-section by a lower generally triangularly-shaped portion and by an upper bulbous portion defined generally at an apex of the lower generally triangularly-shaped portion.
Patent CA-2071174-A1 (CA)
Title: Starch/polymer mixture, process for the preparation thereof, and products obtainable therefrom
Inventor: BUEHLER FRIEDRICH S
IPC: C08L3/04
Filed: 1992-06-12
Abstract: A biodegradable, single-phase starch/polymer mixture comprising (a) 10 to 99 parts by weight of a starch molding composition comprising (i) 95 to 45 parts by weight of at least one chemically modified starch, (ii) 0.1 to 5 parts by weight of urea, urea derivatives, or mixtures thereof, (iii) 4.9 to 50 parts of at least one plasticizer, the parts of (i), (ii), and (iii) adding up to 100, and (b) 90 to 1 parts by weight of at least one linear polymer other than ethylene copolymers, the parts of components (a) and (b) adding up to 100.
Patent CA-2071585-A1 (CA)
Title: Structure of a ceramic filter
Inventor: TURUNEN AIMO
IPC: H01P1/205
Filed: 1992-06-18
Abstract: 1182-12 STRUCTURE OF A CERAMIC FILTER The body of a dielectric filter is provided with at least two parallel flanges (6) on either side of a side surface (4) having electrode patterns thereon, which project from the plane of the patterned side surface (4). The filter (1) is fastened, with the patterned side surface (4) facing downwards, to a base (9), for example a circuit board, which has, at least on one side, over an area the size of the filter, a conductive material which is in electrical contact with the coated surfaces of the filter. The filter is thus enveloped by a conductive layer on substantially all its sides.
Patent CA-2073942-A1 (CA)
Title: Mirror drive mechanism in optical disc player
Inventor: SEKIMOTO YOSHIHIRO
IPC: G11B7/09
Filed: 1992-07-15
Abstract: ABSTRACT OF THE DISCLOSURE       A mirror drive mechanism used in an optical disc player for angularly guiding a beam of light  includes a reflecting mirror having a reflecting surface defined there-in:  a mirror holder for supporting the mirror; a support structure including generally elongated leaf spring means extending generally perpendicular to each other for support-ing the mirror holder at a position on a center axis of the reflecting surface of the mirror; a drive coil secured to a surface of  the mirror holder opposite  to the mirror;  a magnetic circuit mounted on the support structure so as to confront the drive coil.  This drive coil is wound around the  center  axis  of  the  mirror  holder  and  in  a  plane perpendicular to the center axis, and the magnetic circuit includes  at  least  two permanent  magnets  mounted  on  the support structure  with  different  magnetic  poles  thereof facing the drive coil.