baber/WOPTO huggingface dataset:
Patent CA-1307344-C (CA)
Title: Digital speech sinusoidal vocoder with transmission of only a subset ofharmonics
Inventor: BRONSON EDWARD C
IPC: G10H7/08
Filed: 1987-06-30
Granted: 1992-09-08
Abstract: DIGITAL SPEECH SINUSOIDAL VOCODER WITH TRANSMISSION OF ONLY A SUBSET OF HARMONICS     Abstract A speech analyzer and synthesizer system using a sinusoidal encoding and decoding technique for voiced frames and noise excitation or multipulse excitation for unvoiced frames.  For voiced frames, the analyzer transmits the pitch, values for a subset of offsets defining differences between harmonic frequencies and a fundamental frequency, total frame energy, and linear predictive coding, LPC, coefficients.  The synthesizer is responsive to that information to determine the harmonic frequencies from the offset information for a subset of the harmonics and to determine the remaining harmonics from the fundamental frequency. The synthesizer then determines the phase for the fundamental frequency and harmonic frequencies and determines the amplitudes of the fundamental and harmonics using the total frame energy and the LPC coefficients. Once the phases and amplitudes have been determined for the fundamental and harmonic frequencies, the synthesizer performs a sinusoidal analysis. In another embodiment, the remaining harmonic frequencies are determined by calculating the theoretical harmonic frequencies for the remaining harmonic frequencies and grouping these theoretical frequencies into groups having the same number as the number of offsets transmitted. The offsets are then added to the corresponding theoretical harmonics of each of the groups of the remaining harmonic frequencies to generate the remaining harmonic frequencies.  In a third embodiment, the offset signals are randomly permuted before being added to the groups of theoretical frequencies to generate the remaining harmonic frequencies.
Patent CA-1326137-C (CA)
Inventor: DOWNES THOMAS B
IPC: C06B23/00
Filed: 1987-07-13
Granted: 1994-01-18
Abstract: ABSTRACT            Nitrocellulose Propellant Composition Nitrocellulose propellant compositions are provided comprising zinc oxide as ballistic modifier, advantageously in conjunction with one or more conventional ballistic modifiers for example, lead or copper compounds such as lead stearate, lead acetophthalate, lead B-resorcylate and basic copper salicylate.  The propellant compositions exhibit good quality plateau burning over a useful pressure range for a wide range of burning rates.
Patent CA-1277365-C (CA)
Title: Advanced motor controller
Inventor: DZIUBAKOWSKI DONALD J
IPC: G05D3/12
Filed: 1987-08-19
Granted: 1990-12-04
Abstract: ADVANCED MOTOR CONTROLLER                      ABSTRACT OF THE DISCLOSURE     A controller for close positioning or modulating control of an electric motor is disclosed.  The controller compares a signal representative of the demand on the system with a signal representative of the actual position of the motor or  a  valve  associated  therewith,  and  if  the  difference between  the  signals  exceeds  a  "deadband"  and  no  action has  been taken within a first time interval,  and if the last movement of the valve was in the  same  direction and a second time interval has elapsed, a motor run pulse is generated.   If the last movement of the valve was in a direction opposite to that desired, the motor run pulse is  extended  to  overcome  "backlash"  resulting  from  the reversal of motor rotation.
Patent CA-1300553-C (CA)
Inventor: STEVENS ALBERT F
IPC: B07C3/02
Filed: 1987-09-08
Granted: 1992-05-12
Abstract: ABSTRACT OF THE DISCLOSURE       An apparatus for the automated processing of bulk mail in a continuous and automatic procedure includes an operative combination of processing stations including an input station for receiving incoming mail in bulk fashion and for separating the pieces of mail for individual delivery to the remainder of the apparatus  a station for detecting irregularities in the contents of the envelopes, such as metal items, folded contents, or oversized items; a station for out-sorting envelopes rejected in accordance with the determinations made at the detection station; a station for opening the envelopes, preferably along multiple edges; a station for removing the contents from the opened envelopes, for subsequent processing of the contents; and a series of stations for handling and orienting the contents for subsequent delivery to a plurality of output stackers.
Patent CA-1291346-C (CA)
Inventor: GIOMETTI PAUL F
IPC: F16D41/22
Filed: 1987-09-14
Granted: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSURE           Centrifugally disengageable engine starter gearing selectively starting an engine having a starting gear.  The engine starter gearing includes a power shaft, a sleeve slidably secured to the power shaft, a pinion gear slidably mounted to the power shaft and movable into engagement with the starting gear, a driven clutch member secured to the pinion gear and having a circular recess with an inclined or conical surface therein, a driving clutch member mounted to the sleeve, mutually engageable clutch teeth on the driving and driven clutch members, a barrel housing having an open end and being at least partly fitted over the   driving and driven clutch members, an abutment confining the driving and driven clutch members within the housing, a resilient member biasing the driving and driven clutch members into mutual engagement, a radially inwardly extending shoulder on the driving clutch member adjacent the circular recess.  A plurality of centrifugal flyweight members are annularly arranged in the circular recess. Each centrifugal flyweight member has an inclined surface abutting the coni-cal surface of the driven clutch member and operative to displace the driving clutch member in the first axial direction in response to centrifu-gal force.  A plurality of cavities are formed in the driven clutch member.  The plurality of cavities extend from the circular recess and cooperate with at least a portion of the centrifugal flyweight members to prevent circumferen-tial movement of the plurality of centrifugal flyweight members while per-mitting radial movement thereof.
Patent CA-1307882-C (CA)
Title: Toothbrush
Inventor: VIDOVIC GERDA
IPC: A46B11/00
Filed: 1987-10-02
Granted: 1992-09-29
Abstract: ABSTRACT           A pocket or purse toothbrush has a reservoir of liquid dentifrice in the handle of the brush.  The brush per se has an absorbent pad extending along the back, from a position near the reservoir to adjacent the brush bristles.   A valve between the reservior and the absor-bent pad may be opened to saturate the pad with denti-frice, allowing tooth brushing without a supply of water and, if desired, in private even if away from home.
Patent CA-1297581-C (CA)
Inventor: BOULDIN ERIC W
IPC: G11B7/0033
Filed: 1987-11-27
Granted: 1992-03-17
Abstract: Abstract of the Disclosure A medium in tape form for laser recorded opti-cal information featuring a gelatin layer having a thin black crust at the top of the layer.  The crust is formed by developed black filamentary silver particles within the top 0.5 micron of a gelatin colloid matrix.  The remainder of the colloid matrix is substantially clear gelatin and a reflective metallic layer is disposed below the gelatin.  The tape may be disposed on reels and may be pre-patterned during formation of the crust with indi-cia, such as servo track guides or timing marks.  User data may be recorded by modification or by displacing the black silver particles in the crust with a laser to expose the reflective underlayer.  A laser or other light source is used to read data on the medium with optical contrast between the black surface and the reflective metallic layer underlying the gelatin layer which can be observed in the recorded spots.
Patent CA-1295693-C (CA)
Title: Method of and structure for high speed resistance seam welding
Inventor: FARROW JOHN F
IPC: B23K11/24
Filed: 1987-12-08
Granted: 1992-02-11
Abstract: ABSTRACT OF THE DISCLOSURE    A method of and structure for high speed seam welding.  The method comprises placing an auxiliary transformer between a three phase  source  of  electrical  welding  energy  and  seam  welder structure, which auxiliary transformer includes three separate primary windings connected to the separate phases of the source of welding energy, phase controlling the energizing of each separate primary winding and energizing the seam welder from the auxiliary transformer.   In one embodiment,  the phases of  the auxiliary transformer are energized in the order of the phase of the welding energy and a delay of approximately 120° of the welding energy is provided between the energizing of each auxiliary transformer winding.   In another embodiment of the invention, the auxiliary transformer primary windings are energized in a first,  third, second, welding energy phase order with a delay of 240° of the welding energy between energizing each primary coil winding to provide  a  substantially  60/40,  on/off  auxiliary  transformer energizing.    The  structure  of  the  invention  may  include  an auxiliary transformer secondary winding connected to the primary winding of a seam welder welding current transformer or a seam welder  welding  current  transformer  having  a  primary winding connected in parallel with one of the three primary windings of the auxiliary transformer or an auxiliary transformer including a secondary winding connected directly to the seam welder structure.
Patent CA-1303425-C (CA)
Title: Production of pasta
Inventor: EK KURT L
IPC: A21C15/00
Filed: 1987-12-14
Granted: 1992-06-16
Abstract: Abstract Production of pastas A machine for making large pastas in the form of swiss rolls which comprises a conveyor belt for transporting a thin strip of baked pastry material above which is positioned a roller extending diagonally across the width of the belt characterised in that the diameter of the roller diminishes from its upstream end to its downstream end.
Patent CA-1331249-C (CA)
Inventor: HESS HEINRICH
IPC: C08G18/34
Filed: 1988-01-18
Granted: 1994-08-02
Abstract: A PROCESS FOR THE PRODUCTION OF A THIXOTROPIC AGENT, ESPECIALLY FOR STORABLE REACTIVE POLYURETHANE SYSTEMS       ABSTRACT OF THE DISCLOSURE The present invention is directed to a process for the production of a thixotropic agent by reacting a polyisocyanate containing a uretdione group with a poly-basic carboxylic acid containing at least one carboxyl group and, optionally, OH groups.  The present invention is also directed to thixotropic high molecular weight polyols containing the above thixotropic agent. Finally, the present invention is directed to storable, reactive polyurethane systems comprising thixotropic polyols and polyisocyanates which are essentially unreactive with the polyols at room temperature.           Le A 24 765
Patent CA-1332710-C (CA)
Title: Methode et dispositif pour effectuer des mesures ou/et interventions dans une portion de puits fortement inclinee et son application a la realisation de profils sismiques
Inventor: WITTRISCH CHRISTIAN
IPC: G01V1/42
Filed: 1988-03-01
Granted: 1994-10-25
Abstract: L'invention concerne une méthode et un dispositif pour effectuer des mesures ou/et interventions dans une portion de puits fortement inclinée par rapport à la verticale ou horizontale à l'aide d'un ensemble d'instruments placé à l'extrémité inférieure d'une colonne rigide. L'invention concerne en outre une méthode pour réaliser des profils sismiques. Selon la méthode, on positionne ou on maintient positionné ledit ensemble dans le prolongement de la colonne à l'extrémité inférieure de ladite colonne, ledit ensemble étant dans une première position relativement à ladite extrémité; on introduit dans le puits ledit ensemble et ladite partie inférieure de ladite colonne; on fait progresser ledit ensemble dans le puits en poussnt progressivement sur ladite extrémité de ladite colonne jusqu'à ce que ledit ensemble atteigne sensiblement une position désirée; on libère et on dégage ledit ensemble de sa première position, puis on l'amène dans une deuxième position dans laquelle celui-ci repose sur une paroi du puits et où il est mécaniquement découplé de ladite colonne, la liaison entre ledit ensemble et ladite colonne étant réalisée par une ligne flexible souple, et on effectue la mesure ou/et intervention. L'invention s'applique notamment aux mesures ou/et interventions que l'on effectue dans un forage au sol.
Patent CA-1300748-C (CA)
Title: Magneto-optic recording and reproducing apparatus including a multiple layer recording medium having a premagnetized bias layer replacing an external bias magnet
Inventor: TADOKORO MICHIHIRO
IPC: G11B11/105
Filed: 1988-03-16
Granted: 1992-05-12
Abstract: ABSTRACT OF THE DISCLOSURE A magneto-optic information-carrying medium having three magnetic layers. A magnetic bias field is generated by a third layer which is premagnetized in the direction parallel to the thickness thereof. A second layer is magnetized by a magnetizing unit. The laser beam incident on the layers is controlled to three intensities for writing and reading information.
Patent CA-1315324-C (CA)
Title: Flow control device
Inventor: KOOIMAN PETER
IPC: F16K31/56
Filed: 1988-03-16
Granted: 1993-03-30
Abstract: ABSTRACT OF THE DISCLOSURE A flow control device for use in a fluid or gas line is disclosed.  In one example, the device controls the flow of air to the brakes of a large vehicle such as a semi-trailer truck.  The device includes a housing having an inlet port and an outlet port both of which communicate with the interior of the housing and a moveable valve assembly which selectively can close or open the ports with respect to one another.  The valve assembly includes means for axially moving the assembly and locking it in open and closed positions.  Means are provided for biasing the valve assembly to an open position to prevent accidental closing of the valve which possibly could result in the application of brakes of the vehicle.
Patent CA-1285727-C (CA)
Title: Production method of prefoamed particles of polyolefin resin
Inventor: AKIYAMA HIROYUKI
IPC: B29B9/12
Filed: 1988-04-27
Granted: 1991-07-09
Abstract: ABSTRACT     Prefoamed particles of a polyolefin resin are produced by dispersing starting particles of the polyolefin resin, which contains a volatile foaming agent, in a dispersant in a pressure vessel, heating the resultant dispersion to a temperature of at least the softening point of the starting particles in said pressure vessel and then opening the vessel at one end thereof so as to release the starting particles and dispersant into an atmosphere of a pressure lower than the internal pressure of the vessel. The release of the starting particles and dispersant is performed while feeding a heating liquid.
Patent CA-1341399-C (CA)
Inventor: SPRINGER TIMOTHY ALAN
IPC: C07K16/00
Filed: 1988-05-03
Granted: 2002-11-19
Abstract: The present invention relates to intercellular adhesion molecules (ICAM-1) which are involved in the process through which lymphocytes recognize and migrate to sites of inflammation as well as attach to cellular substrates during inflammation. The invention is directed toward such molecules, screening assays for identifying such molecules and antibodies capable of binding such molecules. The invention also includes uses for adhesion molecules and for the antibodies that are capable of binding them.
Patent CA-1294717-C (CA)
Title: Zero bird-beak oxide isolation scheme for integrated circuits
Inventor: SZETO ROGER T
IPC: H01L21/76
Filed: 1988-06-02
Granted: 1992-01-21
Abstract: ZERO BIRD-BEAK OXIDE ISOLATION SCHEME      FOR INTEGRATED CIRCUITS                           Roger Szeto ABSTRACT    The present method provides for formation of isolation oxide without "bird-beak" extensions thereof through the use of a nitride mask in contact with the surface of a semiconductor substrate on both sides of a patterned oxide layer, on which substrate the isolation oxide is grown.
Patent CA-1297309-C (CA)
Inventor: RUBIN JULIUS
IPC: F25D3/12
Filed: 1988-06-23
Granted: 1992-03-17
Abstract: CHAMBER REFRIGERATED BY SOLID CARBON DIOXIDE     ABSTRACT OF THE DISCLOSURE     A chamber for keeping perishable material, either liquid or solid, under refrigeration is provided with a tubular metal container that can be filled with pressurized liquid carbon dioxide. When the pressure in the container holding liquid carbon dioxide is dropped atmospherio pressure, approximately half of the liquid flashes off as vapor and half becomes solid.The container is disposed along the top of the chamber so that refrigeration from solid carbon dioxide therein flows through the chamber by convection currents. Carbon dioxide vapor may flow from the container into the chamber to provide a protective atmosphere for the material therein .
Patent CA-1314997-C (CA)
Title: Digital computing device for a data transmission installation using code 2b 1q or the like
Inventor: RAULT JEAN-CHRISTOPHE
IPC: H03H17/02
Filed: 1988-07-22
Granted: 1993-03-23
Abstract: ABSTRACT OF THE DISCLOSURE         A  device  for  real  time computing of a sum of terms  having the form .SIGMA.h(iT).qe((n-i)T) is suitable for use  in an echo canceller for a data transmission system using  code  2B  1Q. The device first transforms each of the  successive  estimated values of ?e into transformed values  ??e  which  are powers of two, by adding or sub-tracting  1.  The  successive  elementary  products each obtained  by  a  shift  of  h  by  an amount selected in response  to the respective value of q?e. The elementary products are summed in a register.
Patent CA-1309427-C (CA)
Title: Stacking equipment
Inventor: CLARK ALAN
IPC: B65H31/30
Filed: 1988-11-03
Granted: 1992-10-27
Abstract: ABSTRACT                      STACKING EQUIPMENT     Stacking equipment for stacking products such as boxes or cartons in  lay-flat form onto pallets, comprising a receiving conveyor (1) means (6,7,8) thereon for collecting a batch of products together in predetermined disposition, and a push plate (11) for transferring an assembled batch of products onto a main support bed (15).          The bed (15) raises the batch of products onto retractable temporary support fingers (17) and then returns to receive the next succeeding batch.  The batches are stacked successively and finally supported on a pallet which is elevated on bed (15) to support the finished stack which is then discharged from the bed.  Also provided are a pallet dispenser (30) adjacent the support bed (15) and a tie-sheet dispenser (20) to place an individual tie sheet on the top of each successive batch prior to stacking.
Patent CA-1324531-C (CA)
Inventor: GASIUNAS DONATAS V
IPC: G07B17/00
Filed: 1988-11-14
Granted: 1993-11-23
Abstract: POSTAGE METER PRINTWHEEL SETTING APPARATUS     ABSTRACT OF THE DISCLOSURE     The printwheel setting apparatus comprises a voice coil motor having a magnet reciprocating in a coil which magnet is connected by a flexible link to a picker link for advancing the printwheel.  The picker link has a picker cam which cooperates with a cam stud to cause a tooth on the picker-link to engage a slot on the printwheel and to rotate the printwheel as the voice coil motor magnet moves to a position for again advancing the printwheel when the magnet moves in the opposite direction.
Patent CA-1318322-C (CA)
Title: Process for the preparation of a chiral stereorigid metallocene compound
Inventor: ROHRMANN JUERGEN
IPC: C07F17/00
Filed: 1988-12-16
Granted: 1993-05-25
Abstract: Abstract of the disclosure:            Process for the preparation of a chiral, stereorigid metallocene compound A chiral, stereorigid metallocene compourd of the formula I          [R1R2Si(idenyl)2]               (I) (Me2 = Ti, Zr or Hf) which is produced as a virtually pure racemate and can be used as a catalyst component for the polymerization of 1-olefins is obtained by reacting a silylindenyl com-pound of the formula II          [R1R2Si(indenyl)2]Me2 (II) (Me1 = alkali metal) with a titanium, zirconium or hafnium tetrahalide.
Patent CA-1336650-C (CA)
Title: Biological sensors
Inventor: FINLAN MARTIN FRANCIS
IPC: G01N21/55
Filed: 1989-01-16
Granted: 1995-08-15
Abstract: A biological sensor which utilises the phenomenon of surface plasmon resonance to detect the refractive index change which occurs when two components - for example antibody and corresponding antigen - react with one another.  Surface plasmon resonance takes place at the sloping exit surface of an optical waveguide such as a fibre optic 23.  The input end of fibre optic 12 is connected to a light source 12.  A layer 25 of metal is applied to the sloping exit surface so as to cause total internal reflection of the light proceeding down the fibre optic.  Reflected light is detected by a detector 13.  A sensitive, for example antibody, layer 26 is applied to the metal layer. Sample (not shown) reacts with layer 26 in such a way that the refractive index cnanges.  Provided conditions are correct, this variation in refractive index can be monitored in detector 13 by virtue of the surface plasmon resonance which occurs in the area of total internal reflection.
Patent CA-1322841-C (CA)
Inventor: SOOY ROBERT J
IPC: H05K13/02
Filed: 1989-02-21
Granted: 1993-10-12
Abstract: ABSTRACT       ELECTRONIC COMPONENT INSERTION MACHINE       A machine for inserting DIP components.  A DIP component slides down a chute and onto a mandrel.  A thruster advances to thrust the component against a stop which is secured to the mandrel.  The precisely located component is gripped and the mandrel is retracted, whereupon component insertion takes place.
Patent CA-1317947-C (CA)
Title: Biocidally active compounds
Inventor: WEHNER WOLFGANG
IPC: C07C215/90
Filed: 1989-03-06
Granted: 1993-05-18
Abstract: A-16933/+/CGM329 Biocidally active compounds Abstract Compounds of the formula R13 Y?  R2 X?          (I) in which the radicals R1 are identical or different and are C2-C6alkyl, phenyl, Cl-C2alkyl-substituted phenyl or C5-C7cycloalkyl, benzyl, tolyl or hydroxy-Cl-C4alkyl and R2 is straight-chain or branched C8-C22alkyl, and Y is P or N, or R13 Y? R2 is in which R4 is H or -CH3, or          and   X is BF4 or PF6, which are used as biocides, in particular in industrial solutions, in paints or in solid materials.
Patent CA-1326001-C (CA)
Inventor: GILLISPIE JOHN G
IPC: B65D1/20
Filed: 1989-03-07
Granted: 1994-01-11
Abstract: Abstract A   thermoplastic   container   for   the   storage   of flammable liquids includes a container body, a sealable opening in the container body through which the container can be filled with  a  flammable  liquid,  and  a  flexible  corrugated  nozzle portion,  integrally  formed  with  the  container  body,  for dispensing a flammable liquid therefrom. The container body is defined by a bottom, a sidewall and a top. The nozzle portion is  hollow  and  elongated,  has  a generally  circular  cross-section, and is defined by an inlet, and elongated section and an outlet.   The elongated section is defined by a sidewall, a first  end,  a  second  end  opposite  the  first  end,  and  a passageway therethrough from the first end to the second end, and has at least one flexible, corrugated portion that includes a plurality of corrugations.  The  inlet  is  integrally  formed with  the  container  body and  the  first end of  the  elongated section, and is in liquid flow communication with the container body and the passageway through the elongated section, so that a flammable liquid in the container can flow from the container through the  inlet  to  the  elongated  section.  The  outlet  is integrally formed with the second end of the elongated section and is adapted to receive a flammable liquid from the second end of the elongated section. The outlet has a sealable opening therein  through which  the  flammable  liquid can be dispensed from the nozzle portion.