baber/WOPTO huggingface dataset:
Patent CA-2039280-A1 (CA)
Title: Apparatus for controlling an electric motor
Inventor: LOMBARDI STEVEN A
IPC: H02P27/02
Filed: 1991-03-27
Abstract: A motor controller includes a set of thyristors which couple the motor to a source of alternating electricity. A detector senses when the voltage of the source makes a zero crossing. A mechanism is provided to vary the frequency of a clock signal at a rate determined by a user selectable input which represents the rate at which the motor speed is to change during starting or stopping. The clock signal is applied to a counter which produces an active trigger signal when a given number of clock signal cycles have been counted following a zero crossing of the source voltage. The active trigger signal causes a brief trigger pulse to be applied to gate electrodes of the thyristors. The varying frequency of the clock signal alters the relative times at which the thyristors are triggered to vary the amount of voltage applied to the motor. Different frequency variation functions can be stored in a memory for the starting and stopping modes.
Patent CA-2039642-A1 (CA)
Inventor: SHULL JULIAN H
IPC: B66B13/14
Filed: 1991-04-03
Abstract: In a closed loop elevator door control 2, a door motor armature voltage sensor 18 verifies the door speed reported by a speed sensor 17. If the speed reported by the voltage sensor is inconsistent with that reported by the speed sensor, a speed sensor fault signal is provided to the door control 15, indicating that the doors are not actually stalled. The doors are disabled by the door control if there has been an fault on closing and opening; otherwise, they continue to open and close normally until the number of faults exceeds a limit.
Patent CA-2043349-A1 (CA)
Title: A method for measuring impurity concentration and removing impurities from electrolytic solution for electrowinning of size.
Inventor: HAYASHIBE YUTAKA
IPC: G01N21/75
Filed: 1991-05-28
Abstract: Concentrations of cobalt and copper of electrolysis solution for electrowinning of zinc can be measured any time during electrowinning operation by continuously sampling the solution, diluting it, adding coloring reagent to the flow of  the solution and spectrophotometrically analyzing the solution.     The cobalt and copper as deleterious impurities can be removed continuously and automatically by measuring their concentrations by the above method and adding precipitation reagents for them in an amount calculated by a microcomputer on the basis of said analysis.
Patent CA-2043709-A1 (CA)
Title: Antimigraine alkoxypyrimidine derivatives
Inventor: SMITH DAVID W
IPC: C07D403/12
Filed: 1991-05-31
Abstract: A series of novel alkoxypyrimidine derivatives are disclosed as Formula I. (see Formula I) These compounds are intended to be useful for alleviation of vascular headache on the basis of their serotonergic properties.
Patent CA-2044556-A1 (CA)
Title: Electromagnetic induction heater
Inventor: IGUCHI ATSUSHI
IPC: H05B6/10
Filed: 1991-06-13
Abstract: Abstract of the Disclosure An  induction  coil  2  is  formed  by  winding  an electrically conductive wire around a core 1 in figure 1.          A pipe 3 of an electrically conductive material is wound by at least one turn around the induction coil 2,  and it is  short-circuited  at  positions  other  than  the  wound portion with a short-circuiting member 4,  thus forming an electromagnetic induction heater.  An A.C. power source is connected  across  the  induction  coil  2,  and  a  fluid  is supplied  through  the  pipe.  Since  the pipe has  a  large heat  transfer  area,   efficient  heat  exchange  can  be obtained.
Patent CA-2045494-A1 (CA)
Title: Reduced irreversible bombesin antagonists
Inventor: DE CASTIGLIONE ROBERTO
IPC: A61K38/00
Filed: 1990-11-02
Abstract: (57) Abstract A peptide of the formula (1) R-A B-C-Trp-Ala-Val-X-Y-T-W, wherein R represents a group or the formula 4-(ClCH2CH2)2N-C6H4-CH2CH(NHR1)CO-;3-(ClCH2CH2)2N-C6H4-CH2CH(NHR1)CO-;4-(ClCH2CH1)2N-C6H4-CO-: 3-(ClCH2CH2),N-C6H4-CO-; ClCH2CH2NHCO-; ClCH=CH-CO-, BrCH=CH-CO-, CH2=CCICO-, CH2=BrCO-(either cis or trans isomers); (a); CH=C-CO-; ClCH2CH2CH2N(NO)CO-; ClCH2CO-CH(R2)NHCO(CH2)2CO-; A repres-ents a valence bond, or a Gly, Leu-Gly, Arg-Leu-Gly, or Gln-Arg-Leu-Gly residue, B represents a valence bond or a Asn, Phe or Thr residue C represents a Gln or His residue, X represents a Gly or ala residue; Y represents a valence bond or a His(R3), his(R3). Phe, phe, Ser, ser. Ala or ala residue; T represents a valence bond, or a Leu, leu, Phe or phe residue; W represents a group of the formula OR2, NH2, NH(CH2)4)CH3, NH(CH2)2C6H5, Met-R4, Leu-R4, Ile-R4 or Nle-R4; R1 re-presents a hydrogen atom, a Boc group or an acyl group, R2 represents a hydrogen atom, a linear or branched alyphatic chain having from 1 to 11 carbon atoms, a benzyl or a C1-C21 phenyl group, R3 represents a hydrogen atom or a Tos, Dnp or Bzl group, R4 represents NH2, NH-NH2 or OR2, one or more peptide bonds (CONH) are replaced by reduced peptide bonds (CH2, NH), and the pharmaceutically acceptable salts thereof and pharmaceutically acceptable salts are bombesin antagonists. Their preparation and pharmaceutical compositions containing them are also described.
Patent CA-2048029-A1 (CA)
Title: Amino acid residue sequence of hepatitis b core antigen
Inventor: FERRARI CARLO
IPC: A61K39/02
Filed: 1991-07-29
Abstract: ABSTRACT            AMINO ACID RESIDUE SEOUENCE OF HEPATITIS B CORE ANTIGEN    A T cell stimulating polypeptide consists essentially of an amino acid sequence of formula (I): PHHTALRQAILCWGELMTLA.   This  polypeptide  may  be  operatively  linked  to  a polypeptide immunogen such as HBsAg.
Patent CA-2048403-A1 (CA)
Title: Rotary cutting head
Inventor: BARBER PETER
IPC: E21C35/23
Filed: 1991-08-08
Abstract: ABSTRACT          ROTARY CUTTING HEAD       A  rotary,  mineral cutting head (1),  comprising  two parts  being a base (2),  which has means for attachment to  a machine,  and a dome (3), which is adapted externally to carry pick-receiving boxes (11),  with a water gallery (15)  defined between  an  external  portion  (17) of the base  (2)  and  an internal portion (16) of the dome (3),  and with the two parts (2,  3)  releasably secured together by bolts or  studs  (22).
Patent CA-2051446-A1 (CA)
Title: Hydroxy-functional poly(amide ethers) as thermoplastic barrier resins
Inventor: WHITE JERRY E
IPC: C08G59/62
Filed: 1990-04-26
Abstract: Hydroxy-functional poly(amide-ethers) are fabricated into articles such as rigid containers and flexible films exhibiting high barrier to oxygen transmission in both dry and moist environments.  For example, a polymer prepared by reacting the diglycidylether of 4,4'-biphenol with N,N'-bis(m-hydroxyphenyl)-adipamide exhibits especially high barrier.
Patent CA-2051594-A1 (CA)
Title: Processes for the preparation of nitrogen-containing compounds
Inventor: KING STEPHEN W
IPC: C07B61/00
Filed: 1991-09-17
Abstract: PROCESSES FOR THE PREPARATION OF  NITROGEN-CONTAINING COMPOUNDS     Abstract A process for preparing nitrogen-containing compounds which comprises contacting a carboxylated N-monosubstituted nitrogen-containing compound or a carboxylated N,N-disubstituted nitrogen-containing compound with a mixed metal oxide catalyst under conditions effective to produce the nitrogen-containing compound.
Patent CA-2052259-A1 (CA)
Title: Interrupting switch for a vacuum lifter
Inventor: SCHMIDT ADOLF
IPC: B66C1/02
Filed: 1991-09-25
Abstract: The invention concerns a vacuum lifter to transport loads with an adhesion surface, comprising at least one suction head suspended from a hoist, said suction comprising at least one annular seal projecting from its suction side, the vacuum chamber(s) enclosed by the annular seal(s) communicating with a vacuum source, a valve furthermore being provided which can be switched between a suction position wherein the vacuum source communicates with the pressure chamber or vacuum chambers and a venting position wherein the communication with the vacuum source is interrupted and the vacuum cham-bet(s) is (are) vented or fed with compressed air. To assure venting or compressed-air supply immediately upon deposition of the load, the hoist is connected by a fitting 55 to the suction plate 5, said fitting being guided in vertically displaceable manner between two end positions, a sensor or a limit switch 59 being provided to detect the lower end position of the fitting 55 and so cooperating with a control means that following lowering of the fitting 55, the valve 20 shall be switched into the venting position if previously having been in the suction position.
Patent CA-2052589-A1 (CA)
Title: Rate conversion apparatus
Inventor: ICHIYOSHI OSAMU
IPC: H04L25/05
Filed: 1991-10-04
Abstract: A first clock signal of f1 in frequency is converted into a second clock signal having a frequency of f2 = ~ f1.          The first clock signal is converted by a tank circuit (12) and a converter (13) into an R-bit first phase signal (~1) indicating the phase of the first clock signal.  The first phase signal is multiplied by n (mod 2R) by a multiplier into a second phase signal (~3).  The second phase signal is supplied to a digital phase-locked loop (PIL)  (3) consisting of a subtractor (15), a low-pass filter (LPF) (16), a numerically controlled oscillator (NCO)  (17) and a multiplier (18).  The multiplier in the digital PIL (3) multiplies by m (mod 2R) a third phase signal, indicating the phase of a second clock signal which is the output of the NCO (17), to generate a fourth phase signal.  The subtractor (15) generates a signal representing the phase error between the second and fourth phase signals.  This phase error signal is filtered by the LPF (16) to control the oscillating phase of the NCO (17).  A clock generating circuit generates, on the basis of the third phase signal, the second clock signal.
Patent CA-2052782-A1 (CA)
Title: Device for proportioning of a coating agent onto a moving base
Inventor: RANTANEN RAUNO
IPC: D21H23/58
Filed: 1991-10-08
Abstract: The invention concerns a device for metering of a coating agent onto a moving base, such as a paper or board web (W). The device (10) comprises a coating nip (N1) formed by soft-faced applicator rolls (11,21), through which nip the web (W) is passed, the first applicator roll (11) from among said applicator rolls being journalled as fixed on the frame (1) of the device, and the second applicator roll (21) being linked to the frame (1) of the device pivotally by the intermediate of a loading arm (24) or equivalent. At least one of said applicator rolls (11,21) is in nip contact with a hard transfer roll (41,61), which is further in nip contact with a soft-faced metering roll (31,51). In a metering nip (N2,N4) between the metering roll and the transfer roll, a pond (P1,P2) has been formed out of the coating agent, out of which pond, as the rolls revolve, the coating agent is fitted to be transferred through the metering nip (N2,N4) onto the face of the transfer roll (41, 61) and from there further, through the transfer nip (N3,N5) formed by the transfer roll (41,61) and the applicator roll (11,21), onto the face of the applicator roll (11,21). From the applicator roll the coating agent is fitted to be transferred onto the web (W) in the coating nip (N1). In the solution in accordance with the invention, the metering roll (31) and the transfer roll (41) placed next to the fixed applicator roll (11) and/or the metering roll (51) and the transfer roll (61) placed next to the mobile applicator roll (21) are linked pivotally to the same machine member on the frame (1) of the device. <IMAGE>
Patent CA-2053744-A1 (CA)
Inventor: VANACORE VINCENT D
IPC: H04M3/51
Filed: 1991-10-18
Abstract: A call-load control arrangement for a first call-answering center, such as an E911 service PSAP, causes calls destined for the first center and not yet routed thereto to be rerouted by a central office from the central office directly to a second, alternate, call-answering center while the first center is in call overload. A function monitors current parameters of call-answering performance of the first center and periodically compares them against predetermined criteria of acceptable call-answering performance to determine whether call overload exists. In the E911 service PSAP, the function automatically closes and opens a switch to activate and deactivate the "night-service" or "trunk make-busy" link to cause the central office respectively to reroute calls away from, or to route calls to, the PSAP.
Patent CA-2054043-A1 (CA)
Title: Method of minimizing the no emissions from a combustion
Inventor: AIGNER MANFRED
IPC: F23C99/00
Filed: 1991-10-25
Abstract: ABSTRACT OF THE DISCLOSURE To minimize the NOx emissions by means of water in the combustion of a fuel, without incurring the risk of higher CO emissions arising instead, the sensitive ignition  zones  of  a  burner  (A)  are  penetrated  by compact water jets (11) (solid jets) at the point where a freshly fed fuel/air mixture is continuously ignited anew, in such a way that these zones are not disturbed. In this way,  instabilities,  flame pulsations and/or poor  burn-out,  which  are  responsible  for  a  rapid increase  in  CO  emissions  during  combustion,  are prevented. In the interior of the flame, the water jets (11)  then burst  open  and the water  is  distributed exactly where it counteracts the NOx emissions.                                              (Figure 1)
Patent CA-2055528-A1 (CA)
Title: Process for reducing the discoloration of a plastic molding composition at the processing temperature
Inventor: PFAHLER GERHARD
IPC: C08L101/00
Filed: 1991-11-14
Abstract: Abstract of the disclosure:            Process  for reducing the discoloration of a plastic molding composition at the processing temperature In plastic molding compositions,  in particular those based  on  olefin  polymers,  which  contain  phenolic stabilizers and metal ions as catalyst residues,  the discoloration at the processing temperature is reduced if they  contain  triglycerol  or  ditrimethylolpropane  as catalyst deactivators.
Patent CA-2057549-A1 (CA)
Inventor: SEIBEL LAWRENCE P
IPC: C09D5/08
Filed: 1991-12-12
Abstract: A coating composition that inhibits corrosion of metal substrates, a method of inhibits corrosion of a metal substrate with a corrosion-inhibiting coating composition, and a metal article that resists corrosion are disclosed.          The corrosion-inhibiting coating composition comprises: (a) a high molecular weight epoxy resin; (b) a phenolic resinl (c) an organic corrosion inhibitor having the general structural formula   , wherein each R is selected, independently, from the group consisting of hydrogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halo, cyano, nitro, carboxyl, carboxyalkyl, hydroxy, amino and carbamoyl, and wherein R1, R2, R3 and R4 are selected, independently, from the group consisting of hydrogen, alkyl, hydroxyalkyl, haloalkyl, alkoxyalkyl, carboxyalkyl, carboxyl, phenyl, and phenylalkyl, and wherein at least one of the R1, R2, R3 and R4 groups is a carboxyl group; and (d) a suitable nonaqueous carrier.
Patent CA-2060042-A1 (CA)
Title: Water soluble block copolymers and methods of use thereof
Inventor: LIAO WEN P
IPC: C08F293/00
Filed: 1992-01-24
Abstract: A composition and method of use thereof for the treatment of wastewater comprising a block copolymer having the formula:   (see formula I) wherein E is a polymeric segment obtained from the polymerization of hydrophobic monomers, x when present is a nonionic monomer, y is a cationic monomer, R1 and R2 are the same or different and are H or a lower alkyl group from C1 to C3 and X is a salt of an ammonium cation.
Patent CA-2060459-A1 (CA)
IPC: E04H12/22
Filed: 1992-01-31
Abstract: An anchoring device for supporting a post in a generally upright, vertical position.  The anchoring device includes a base plate having a surface area greater than the cross-sectional surface area of the post to be sup-ported, and a plurality of ground-penetrating stabilizing pins spaced near the perimeter of the base plate.
Patent CA-2063210-A1 (CA)
Inventor: HEYMAN BARBARA C
IPC: A01K27/00
Filed: 1992-03-17
Abstract: ILLUMINATED COLLAR                 ABSTRACT OF THE DISCLOSURE           An  illuminated collar  for  improving night time visibility of a pet.  A hollow flexible light-permeable tube has first and second ends and a plurality of lights mounted within the tube.  A housing is mounted on the first tube end and contains circuit means  for operating the  lights  and battery means for providing power for the circuit means and the lights.   A plurality of catch pins project from the housing.  A buckle includes a ring mounted on the second tube end, a connector projecting from the ring, and a plurality of buckle holes in the connector so that the catch pins and buckle holes are selectively engageable and disengageable for connecting and disconnecting the first and second ends with respect to each other.
Patent CA-2064532-A1 (CA)
Title: Immunoassay for the detection of hiv specific igm
Inventor: BRUNELL PHILIP A
IPC: G01N33/543
Filed: 1992-03-31
Abstract: Immunoassay For The Detection Of HIV Specific IgM    Abstract A method of immunoassay for detecting antibodies to human immunodeficiency virus (HIV).  The assay detects HIV specific IgM antibody thereby distinguishing those infants who are infected with HIV from those who have passively acquired maternal HIV specific IgG antibodies.          Additionally, the assay can be used to detect individuals infected with HIV who have not yet mounted an IgG immune response.
Patent CA-2066087-A1 (CA)
Title: Magneto-optical recording medium
Inventor: TAKAHASHI AKIRA
IPC: G11B11/10
Filed: 1992-04-15
Abstract: A magneto-optical recording medium has a recording layer whereon information is magneto-optically recorded.      A readout layer is provided on the recording layer. The readout layer has a compensating temperature that is located between room temperature and the Curie temperature. In the readout layer, upon an application of a light beam, the in-plane magnetization occurs at room temperature and a transition from the in-plane magnetization to vertical magnetization occurs as the temperature of the irradiated area of the readout layer rises above a predetermined temperature. By employing this magneto-optical recording medium, with an application of a light beam that is intensity-modulated into two levels, only a spot having a temperature not less than a predetermined temperature is involved in the reproduction; therefore, a recorded bit with a size smaller than the diameter of the light beam can be reproduced, thereby greatly increasing the recording density. Further, the level of the reproduced signals is increased, and crosstalk from the adjoining tracks is reduced; thus, information recording and overwriting can be conducted more easily.
Patent CA-2070408-A1 (CA)
Title: Enzyme assay and assay kit to measure cellular activation
Inventor: JAFFE RUSSELL M
IPC: B01L3/00
Filed: 1990-10-25
Abstract: An in vitro method is provided herein for detecting the response of intact animal cells to an extra-cellular, exogenous cell activator substance, the activator substance being a substance which when in contact with the intact cells, activates an intracellular enzyme. The method includes contacting the cells in vitro in the presence of a substrate for the activated enzyme with the activator substance immobilised onto a solid support. The consequent activity of the activated enzyme in the presence of the enzyme substrate is then detected. Such contact takes place in one or more wells of a microtiter plate.  The well or wells of the microtiter plate, in which the contact takes place between the intact cells, the immobilised activator and the enzyme substrate has or have (each of them) a vertical side wall height of 1 to 2 mm. The method is carried out such that the reaction of the internal diameter of the well (in mm.) to the volume of the sample (in µ1.) is at least 0.1:1, and the ratio of the vertical height of the well to the vertical height (depth) of the sample in the well is in the range 1.1: 1 to 5:1.
Patent CA-2073172-A1 (CA)
Title: Character animation method and apparatus
Inventor: FAN JAMES
IPC: A63H3/28
Filed: 1991-01-17
Abstract: A character animation method and apparatus for the animation of toy characters and the like is disclosed. In accordance with the method, a voice track is recorded on one track of a dual track recording device, typically a tape recorder. On a second track of the recorder an animation signal is recorded characterized by the signal having a frequency at any given time indicative of the then currently desired animation condition. A character is provided having a tape playback unit therein for playing back such prerecorded dual track tapes, the character having an amplifier and speaker for reproducing the audio information, and a servo motor (24) having a drive system for driving the character mouth elements (52, 54) and eyes (46) with the desired animation, the drive system having a feedback device thereon for providing a feedback signal to the servo motor control. The electronics in the character which is responsive to the animation control signal provided by the playback unit to provide the servo motor drive signal effectively updates the servo motor drive signal on each cycle of the animation control signal received from the playback unit.
Patent CA-2073275-A1 (CA)
Title: Maximum boiling azeotropic composition and azeotrope-like compositions
Inventor: OMURE YUKIO
IPC: F25B1/00
Filed: 1992-07-07
Abstract: ABSTRACT         The invention provides an azeotrope-like binary composition comprising not less than 65 mole percent of 1,1,1-trifluoroethane and not more than 35 mole percent of pentafluoroethane.    The invention further provides a refrigerator in which an azeotrope-like binary composition comprising not less than 65 mole percent of 1,1,1,-trifluoroethane and not more than 35 mole percent of pentafluoroethane is used as a refrigerant.
Patent CA-2074040-A1 (CA)
Title: Structural adhesive based on an acrylic reactant
Inventor: DI RUOCCO VITTORIO
IPC: C09J4/02
Filed: 1992-07-16
Abstract: STRUCTURAL ADHESIVES BASED ON AN ACRYLIC REACTANT Abstract Double-component acrylic adhesive compositions are disclosed, in which: (a) the adhesive component comprises a mono-functional acrylic monomer, a chloro-sulfonated polyolefin and a crosslinker selected from difunctional silicon derivatives; (b) the activating component is a typical aldehyde-amine condensation product.
Patent CA-2079582-A1 (CA)
Title: Container package
Inventor: VAN ERDEN DONALD L
IPC: B65D71/00
Filed: 1992-09-30
Abstract: A package (10) for releasably holding a plurality of containers (22) comprises an arraying device (14), a plurality of containers (22), and encompassing means (16). The arraying device (14) releasably holds the containers (22) together to form a pre-determined array. The containers (22) have a bottom (20), and are insertable into the arraying device (14) so that the arraying device (14) is located proximate to their bottoms (20). The arraying device (14) loosely retains the containers therewithin. The encompassing means (16) surrounds the containers (22) and the arraying device (14) for retaining the containers (22). <IMAGE>
Patent CA-2080086-A1 (CA)
Inventor: BOYCE JILL M
IPC: G06T5/00
Filed: 1992-10-07
Abstract: ABSTRACT           A method for reducing noise in a reference frame of video information by determining the mean absolute difference, MAD0, between each block in the reference frame and identically located blocks in adjacent frames.  If MAD0 is < A, the block in an adjacent frame is held for averaging with the block in the reference frame, but if MAD0 for the block is > A, a search is made for a block in the adjacent frame that matches the block in the reference frame.  This is labelled MADmin. If MAD0 for the block in the adjacent frame is < BMADmin, the matching block is not used in the average.  If MAD0 is not < BMADmin, the matching block can be used in the average, but preferably this is not done if MADmin exceeds a value C.  The values of A, B and C are determined by experience for the block size used.