baber/WOPTO huggingface dataset:
Patent CA-2061603-A1 (CA)
Inventor: MIYAZAKI SHINICHI
IPC: H04B1/16
Filed: 1992-02-20
Abstract: In a radio receiver for receiving a particular radio signal of a particular frequency with an electric field strength among a plurality of radio signals of different frequencies, a temperature detector (31, 32) produces a detected temperature signal representative of an ambient temperature of the radio receiver.  A correcting signal producing unit (33) produces a correcting signal representative of a control value determined by the detected temperature signal and a particular control signal produced by a frequency controller (11) to indicate a local frequency for the particular frequency.  A correcting unit (34) corrects, according to the correcting signal, an electric field strength signal which is produced by an electric field strength detector (13) to represent the electric field strength detected in a detected signal produced by a detector (12) by detecting the particular radio signal in response to the particular control signal.
Patent CA-2063446-A1 (CA)
Title: Invalid walker
Inventor: LEWY MICHAEL M
IPC: A61H3/00
Filed: 1990-07-09
Abstract: An improved walking assistance device (10) which is also specifically adapted for traversing stairs comprises a rigid intertwined open framework supported by a front and rear pair of legs (13, 13') which permit the device to span multi steps in a stairway. The open framework includes forwardly extending arm rails (20, 20') parallel to the slope of the stairs. Other arm rails (14, 14') support a sling seat (26) for the user. The device is fitted with appropriate hinges (27, 27') for folding reduction in overall size for more convenient portability.
Patent CA-2067016-A1 (CA)
Inventor: NAKAMURA YOSHINORI
IPC: B29C45/44
Filed: 1992-04-24
Abstract: The present invention provides an injection mold having an injection core mold for defining the inner wall of a lip portion in a preform having an undercut area, a first lip cavity mold for defining the outer wall of the lip portion having no undercut, and a second lip cavity mold for defining the outer wall of the lip portion having the undercut area.  In an initial release after the injection molding process for the preform, the second lip cavity mold is first moved upwardly to secure a space wherein there is no obstruction around the outer periphery of the undercut area.  Thereafter, the injection core mold is upwardly moved such that the second injection core mold can be forcibly released from the molded preform while resiliently deforming the undercut area in the outward direction, utilizing the space so formed.  The barrel portion of the preform so molded is biaxially stretched to provide a so-called roll-on type biaxially oriented vessel having a ball received in the lip portion thereof.
Patent CA-2068595-A1 (CA)
Title: Device to remove entangled hair from hairbrushes and the like
Inventor: MARLEAU GILLES
IPC: A47L9/00
Filed: 1992-05-13
Abstract: A simple and widely applicable device for aiding quick removal of matted or entangled hair, string, or other longitudinally extensive material from brushes used to stroke or collect such material. For flat brushes the device consists either of a pivoting wire lifter which lifts material away from the brush, or a sliding member which will move accumulated hair to one end of the brush, for round brushes a cutter that runs in a groove in the brush, or a combination of the cutter and the lifter or sliding member. The device is useful for many types of brushes including all manner of hairbrushes for people or animals, and for vacuum-cleaner power-head rotary brushes and manual sweeper rotary brushes.
Patent CA-2068849-A1 (CA)
Inventor: MYLCHREEST IAIN C
IPC: G01N30/72
Filed: 1992-05-15
Abstract: An electrospray ion source having a capillary tube for directing ions from an ionizing region to an analyzing region including a skimmer in which the capillary tube is oriented to cause undesolvated droplets to strike the skimmer.
Patent CA-2071750-A1 (CA)
Inventor: HAZEN JOHN C J M
IPC: D21H17/62
Filed: 1992-06-22
Abstract: A process for the production of a stabilized rosin and a stabilized rosin obtainable by the process. According to the process rosin is heated in the presence of a phosphoric acid or a strong acid in combination with a phosphate containing substance and disproportionated by addition of iodine. Preferably the rosin is first heated in the presence of the phosphoric acid or the strong acid in combination with the phosphate containing substance and thereafter disproportionated by the addition of iodine.      Iodine is preferably added in at least two steps and the disproportionation is allowed to proceed between each step.      The stabilized rosin can be used as a tackifier resin in adhesives and as a sizing agent for paper, paper boards and similar products.
Patent CA-2075856-A1 (CA)
Inventor: TAKAHASHI ATSUSHI
IPC: F16H1/32
Filed: 1992-08-12
Abstract: An  inscribed  meshing  speed  increasing  and reduction gear construction in which external teeth (for example, a1 and a2, b1 and b2, and c1 and c2) cut at the same position during processing are not simultaneously meshed with (outer pins 111 of) internal-tooth gear during operation in order to improve the accuracy after completion of assembling even if the gear is cut by a machine of similar processing accuracy.  Thereby, (although it seems to be contrary to a conventional idea that said external teeth cut at the same position should be simultaneously meshed with the internal-tooth gear), the actual accuracy after completion of assembling can be improved.   In this case, when both the number of teeth (24 in Fig.  1) of external tooth gears 105a and 105b, and a difference in the number of teeth (4 in Fig. 4) between the external-tooth gear and (outer pins 111) internal-tooth gear, are set to integer times of the number (2 in Fig. 1) of the external-tooth gears, the external teeth of the external-tooth gears and various holes formed in the external-teeth can be all simultaneously  (by  one  setting)  cut,  and  remarkably improving  the  accuracy  of  the  positional  relationship between the external teeth and various holes.
Patent CA-2076084-A1 (CA)
Inventor: CHENNAKESHU SANDEEP
IPC: H04L25/03
Filed: 1992-08-13
Abstract: A TDMA RF received signal is demodulated by first being filtered with a fixed transversal filter having a characteristic selected for matching a fixed square root raised cosine pulse characteristic of the received signal.   The filtered signal is then adaptively filtered for compensating for a time varying impulse response of the channel. The adaptive filtering is performed initially during a synchronizing portion (preamble) of the filtered signal in accordance with a fast recursive least squares algorithm.      Subsequent filter adaptation to a data portion of the filtered signal is accomplished in accordance with a computationally less expensive normalized least mean square procedure. The adaptive filter repetitively applies a modified Viterbi algorithm to blocks of 2D symbols, such that D symbols are released for adapting the adaptive filter means during the data portion of the filtered signal and the signal. The released symbols are also employed for adapting elements required in computing a metric for the modified Viterbi algorithm and the reconstructed signal used to form an error signal that drives the adaptation algorithms.
Patent CA-2076461-A1 (CA)
Title: Composition comprising a polymer of carbon monoxide with ethylenically unsaturated compounds
Inventor: MACHADO JOSEPH M
IPC: C08G67/02
Filed: 1992-08-20
Abstract: A B S T R A C T            A COMPOSITION COMPRISING A POLYMER OF CARBON MONOXIDE WITH                ETHYLENICALLY UNSATURATED COMPOUNDS      A composition comprising a blend of a linear alternating polymer of carbon monoxide with at least one ethylenically unsaturated compound, with a copolymer of a vinyl aromatic monomer and acrylonitrile monomer, wherein the copolymer contains from 45 wt% to 80 wt% acrylonitrile monomer, relative to the weight of the copolymer.
Patent CA-2077759-A1 (CA)
Inventor: DOLLINGER SUSAN E
IPC: B29C55/02
Filed: 1991-02-26
Abstract: Disclosed are specific biaxially oriented, coextruded multilayer barrier films (10) having a normalized permeability of less than 1.5 x 10-13cc-cm/sq.cm-cm Hg-sec. The preferred barrier layer (20) of the films (10) comprises a copolymer of vinylidene chloride and an alkyl acrylate. Also disclosed are specific draw-tentering processes for preparing the barrier films (10) without destroying the barrier properties relative to the precursor undrawn film.
Patent CA-2078924-A1 (CA)
Title: Method and apparatus for pulverizing glass
Inventor: MCFARLANE JOHN M
IPC: B02C19/00
Filed: 1992-09-23
Abstract: Abstract of the Disclosure A glass grinder for breaking glass from particle or fragment configuration to a grit of a predetermined size. The grinder employs a grinding chamber having an upper and lower portion wherein glass fragments are broken into relatively large particulate size in the upper chamber and passes into the lower chamber where glass is further impacted by blades and driven into a peripheral dam of glass particles.  As the glass impacts the dam, it is further broken down to the desired grit size.  Overflow from the grit dam edits the chamber under a reduced pressure to control dust production.
Patent CA-2079430-A1 (CA)
Title: One step process for production of dirithromycin
Inventor: MCGILL JOHN M
IPC: C07H17/08
Filed: 1992-09-29
Abstract: Abstract The disclosure relates to a new process for the synthesis of the macrolide antibiotic dirithromycin in crystalline form.  The process is carried out in a single reaction vessel whereby an acetal dissolved in acetonitrile, in the presence of an acid catalyst, is hydrolyzed to the related hemiacetal which then reacts directly with erythromycylamine to form crystalline dirithromycin.
Patent CA-2081940-A1 (CA)
Title: Three-layer nonwoven composite structure
Inventor: PERKINS CHERYL A
IPC: B32B5/26
Filed: 1992-11-02
Abstract: Abstract of the Disclosure A nonwoven composite structure is provided which has three melt-extruded nonwoven layers, each of which includes at least a portion of a nonwoven web.  The first nonwoven web is adjacent to one surface of the second nonwoven web and the third nonwoven web is adjacent to the other surface of the second nonwoven web.   The first and third nonwoven webs consist of continuous and randomly deposited filaments having an average filament diameter in excess of about 7 micrometers. The second nonwoven web consists of substantially continuous and randomly deposited microfibers having an average diameter of from about 0.1 to about 10 micrometers.  The microfibers of the second nonwoven web are prepared from a mixture of an additive and a second thermoplastic polymer, which additive imparts alcohol repellency to the surfaces of the microfibers. The three nonwoven layers can be prepared independently from polyolefins, polyesters, polyetheresters, and polyamides. The boundary between at least two adjacent melt-extruded nonwoven layers is indistinct in that fibers at or near the surfaces of such adjacent layers are significantly intermingled.  At least one of the first and third nonwoven webs has been treated by topical application of at least one agent to alter or enhance the surface characteristics of the filaments in the web, the topical treatment being carried out in a manner such that each topically applied agent is substantially restricted to the web to which it was applied.  Finally, the composite structure has been pattern bonded by the application of heat and pressure.
Patent CA-2082469-A1 (CA)
Title: Process and plant for the production of urea with differentiated yield reaction spaces
Inventor: PAGANI GIORGIO
IPC: C07C273/04
Filed: 1992-11-09
Abstract: ABSTRACT     Process  for the industrial synthesis of urea,  by  reacting ammonia  (NH3)  and  carbon  dioxide (CO2) in  at  least  one-reaction  space,  at  high pressures and temperatures and  by recirculating at  least  part of  the  non-reacted  products obtained  in  a recovery section,  characterized by the  fact-that  the following takes place :   a synthesis  reaction  A) between  highly  pure reagents,  and a synthesis reaction  s) between less pure reagents,  substantially recycled from  the said  recovery  section,  the  reaction A)  being  either  of adiabatic type A1) or with partial reaction heat removal A2).
Patent CA-2083044-A1 (CA)
Title: Metaldehyde-containing pesticides
Inventor: MISSELBROOK JOHN
IPC: A01N35/02
Filed: 1991-05-17
Abstract: The pesticidal effectiveness of metaldehyde, which is difficult to dissolve or disperse, can be improved by mixing it with one or more surface active agents and milling to a fine particle size, preferably less than 30 microns, and subsequent application, optionally with the addition of a suitable film-forming polymer, such as a styrene acrylic latex, to a carrier material such as bran. meal, grain, flour or finely divided silica. Finely milled metaldehyde formulations made this way are highly effective molluscicides.
Patent CA-2084848-A1 (CA)
Title: Process for depolymerization of polyacrylonitrile using hot water
Inventor: SISKIN MICHAEL
IPC: C08F8/12
Filed: 1992-12-08
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention relates to a process for  depolymeriz-ing  polyacrylonitrile  into  water  soluble  by-products,   including ammonia and lower molecular weight carbonaceous materials by  contact-ing the starting materials, polyacrylonitrile, and neutral, hot liquid water at a temperature from about 200°C up to the critical temperature of water at autogenous pressure.  The present invention has utility as a  means  for  degrading  polyacrylonitrile without  producing  toxic hydrogen cyanide as a by-product.
Patent CA-2086866-A1 (CA)
Inventor: HUGGINS MICHAEL J
IPC: F16H63/20
Filed: 1993-01-07
Abstract: A fluid pressure actuated auxiliary transmission section (14) shift control system (3230/270)/method is provided which includes a control member (246) to prevent auxiliary section synchronized clutch (92, 128) damage if the main transmission section (12) is engaged during an auxiliary section shift.  A range synchronizer protection valve (246) is effective to exhaust at least the high speed ratio chamber (224) of the piston actuator (220) whenever a main section engaged condition is sensed.
Patent CA-2087352-A1 (CA)
Title: Method and composition for treatment of galvanized steel
Inventor: REICHGOTT DAVID W
IPC: C23C22/06
Filed: 1993-01-15
Abstract: ABSTRACT OF THE DISCLOSURE      Methods of forming a conversion coating on metal surfaces such as galvanized steel are provided.  The methods comprise reacting the metal surface with an aqueous solution of a water soluble polyacrylic acid or homopolymer thereof, maleic or acrylic acid/allyl ether copolymer alone or with an acid.
Patent CA-2088117-A1 (CA)
Title: Low delay atm switching system using idle cells stamped with reference time
Inventor: FAN RUIXUE
IPC: H04L47/6275
Filed: 1993-01-26
Abstract: In a multi-stage switching system, a time stamp is attached to each cell at an entry point of the system indicating the time of arrival of the cell, and the cell is transferred to a network comprising multiple switching stages each being composed of basic switching modules. The switching modules of all stages are interconnected to form the network. Each switching module comprises a self-routing switch and buffers connected thereto. The time stamp of cells arriving at a given one of the switching modules, where the cells are likely to arrive out of sequence, is constantly monitored and a minimum value of the time stamps is detected. When an empty buffer exists in the given switching module, an idle cell containing the time stamp of the minimum value is generated at the output of the empty buffer.
Patent CA-2088881-A1 (CA)
Inventor: BIAGIOTTI GUGLIELMO
IPC: B26D3/16
Filed: 1993-02-05
Abstract: METHOD AND MACHINE FOR CUTTING ROLLS OF PAPER AND THE LIKE                  ABSTRACT    The blade  (50)  has a helicoidal  shape with an external cutting edge (50A) having increasing radius and developing over a partial sector, the difference between maximum and minimum radius being at least equal to the maximum diameter of the rolls or logs (B) to be cut.   The shaft (45) and the axis of rotation of the blade rotor (42) are not displaced during the rotor's revolution and  are  slightly  inclined with  respect  to  the  direction  of advancement of the logs within their carriers.   Thus the cut performed on the rolls (B) and the cutting edge (50A) Will, on the average, be perpendicular to the axes of the rolls (B).  The advancement of the roll(s)  (B) in the carriers is continuous and the cutting takes place during a portion of each revolution of the rotor and during that portion of the roll's advancement which corresponds  to  the  axial  length  of  the  small  rolls  to  be produced.
Patent CA-2090443-A1 (CA)
Title: Amidic derivatives of (r)-glycerophosphoryl-(s)-serine or of its diacyl derivative, process for their preparation and relative pharmaceutical compositions for the improvement of the learning processes
Inventor: MORONI ENZO
IPC: C07F9/572
Filed: 1993-02-26
Abstract: Amidic derivatives of  (R)-glicerophosphoryl-(S)-serine or of its diacyl derivative, process for their preparation and relative pharmaceutical  compositions  for  the improvement of the  learning processes Abstract Amidic derivatives of  (R)-glycerophosphoryl-(S)-serine or of its diacyl derivative,  a process for their preparation,  and relative pharmaceutical compositions,  containing said derivatives as their active principle for the improvement of learning and memory processes.
Patent CA-2092972-A1 (CA)
Inventor: BRASSIER MARC
IPC: G01N27/00
Filed: 1993-03-30
Abstract: 21 Dispositif d'éclairage et/ou de signalisation utilisé en situation de brouillard La présente invention concerne un dispositif d'éclairage et/ou de signalisation utilisé en situation de brouillard. Elle trouve application dans le domaine de l'éclairage et de la signalisation de véhicules routiers. Selon l'invention, le dispositif comporte un circuit de détection d'humidité (3) et un système de détection de visibilité optique (2) qui sont combinés par un circuit de combinaison (4) de façon à allumer un feu de brouillard (16). Figure 1.
Patent CA-2093357-A1 (CA)
Title: Heparin fraction
Inventor: EKRE HANS-PETER
IPC: A61K31/715
Filed: 1991-10-04
Abstract: The invention relates to the use of heparin with low affinity for antithrombin III for the preparation of a medicament in the treatment of malaria. The amount of the heparin with low affinity for antithrombin III could be between 2 and 200 mg in the medicament and the anticoagulant activity is preferably Í 30 IU/mg as determined by APTT.
Patent CA-2095055-A1 (CA)
Title: T-flex mtb
Inventor: CAMPBELL RAYMOND D
IPC: B62J1/00
Filed: 1993-04-28
Abstract: ABSTRACT OF THE DISCLOSURE           A seating arrangement for a cycle or the like has a seat comprising a unitary saddle member having a medial portion with a support member attached to its underside for attaching it to a seat post.  The support member may comprise a wire support.  A pair of symmetrical wing portions extend laterally from the medial portion and a nose portion extends laterally from the medial portion  and a nose portion extends forwardly form it.  The wing portions are supported as cantilevers and curve outwards and upwards from the medial portion, preferably until their distal ends are at least 1.5 cm to 2.5 centimetres higher than the medial portion.  Each wing portion  is  resiliently  flexible  to  assume  a  substantially horizontal position under the weight of a rider.  The leading edge of each wing portion may be swept back.  Such wing portion provide for a greater degree of comfort because they do not concentrate the weight of the rider in one localized area, absorb vibration, and do not significantly inhibit movement of the lower buttocks and upper back of thighs a  the rider pedals.  In preferred embodiments, the seat  is  combined  with  a  shock-absorbing  seat  post  assembly comprising a shaft mounted telescopically in a tube and having a keyway extending longitudinally of  the shaft between a first position within the end of the tube and a second position nearer the seat supporting end.  A key located in the keyway engages the tube and limits  rotation of  the  seat post  while  permitting reciprocating movement of the seat post relative to the tube.
Patent CA-2096076-A1 (CA)
Inventor: LANG HARTMUT
IPC: G01N33/86
Filed: 1993-05-12
Abstract: ABSTRACT OF THE DISCLOSURE:      There is disclosed the use of prothrombin fragments, preferably of human prothrombin fragments, having a thrombin-like activity, in particular of meizothrombin, meizo thrombin (desFl), or mixtures thereof, for diagnostic purposes for assaying thrombin substrates as well as a reagent containing these prothrombin fragments.
Patent CA-2096403-A1 (CA)
Inventor: MCDERMOTT THOMAS C
IPC: H04B10/02
Filed: 1993-05-17
Abstract: In a fiber-optic communications system (10), a shut-down apparatus in the event of a fiber-optic cable disruption includes a first optical fiber cable (14) for propagating signals in a first direction (28) and having a plurality of adjacent amplifiers (40) disposed along the first cable (14). A second optical fiber cable (16) for propagating signals in a second direction (30), opposite the first direction (28), includes a plurality of adjacent amplifiers (42) disposed along the second cable (16). Each of the amplifiers (42) in the second optical fiber cable (16) are interconnected to one of the amplifiers (40) of the first optical fiber cable (14) to form a plurality of amplifier pairs (46). Circuitry (60) is provided for terminating operation or reducing the output power level of an amplifier (40,42) within the first or second optical fiber cables (14,16) in the event of a cable disruption between adjacent amplifier pairs (46), such that an amplifier (40,42) within an amplifier pair (46) adjacent to the cable disruption terminates generation or reduces its power level to a safe level at its output. Circuitry (50,52) is further provided for generating a continuity signal on the first and second cables (14,16) at the output of each of the amplifiers (40,42). Circuitry (60) is provided for sensing the continuity signal upon elimination of the cable disruption to thereby actuate the input of the amplifier (40,42) within an amplifier pair (46) adjacent to the cable disruption to thereby automatically reestablish communication along the previously disrupted cable. <IMAGE>
Patent CA-2099500-A1 (CA)
Title: Source follower storage cell and improved method and apparatus for iterative write for integrated circuit analog signal recording and playback
Inventor: BLYTH TREVOR
IPC: G11C27/00
Filed: 1991-12-26
Abstract: Source follower storage cell and improved method and appar-atus for iterative write for integrated circuit analog recording and playback which provides increased resolution in the stored signal and increased accuracy and stability of the storage and readout capa-bilities of the device. The storage cell is configured wherein the elec-trically alterable MOS storage device is connected in a source follow-er configuration, which provides a one to one relationship between the variation in the floating gate storage charge and the variation in the output voltage, and for high load resistance, relative insensitivity to load characteristics. The write process and circuitry provides a multi-iterative programming technique wherein a series of coarse pulses program a cell to the approximate desired value, with a series of fine pulses, referenced to the last coarse pulse being used for pro-gramming the respective cell, programming the cell in fine incre-ments to a desired final programming level. Still finer levels of pro-gramming can be used.