baber/WOPTO huggingface dataset:
Patent CA-2041210-C (CA)
Title: Television audience data gathering
Inventor: DUFRESNE MICHEL
IPC: H04N7/16
Filed: 1991-04-25
Granted: 1998-12-29
Abstract: A method and apparatus of collecting data from a television audience comprising storing in a first memory demographic descriptions of expected viewers of a television receiver, receiving signals from a viewer control operated by a viewer, displaying one or more indicia on a television screen for viewing by the viewer, designated by the character of the signals received from the control, in confirmation of the particular signal received from the control, and storing a signal in a second memory for later access corresponding to at least one form of the designated signal character, which is related to the designation of at least one selected expected viewer as an active viewer.  The television viewer may use his remote control at any time, when the flashing prompt is flashing, or when it is not flashing, to change channels.  There is no channel lock nor is there an annoying on-screen prompt enquiring as to the identity of persons in the viewing audience.
Patent CA-2059090-C (CA)
Title: Process for production of polypropylene sheets or films
Inventor: FUJII ATSUSHI
IPC: B29C48/00
Filed: 1992-01-09
Granted: 1994-05-31
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention relates to a process for producing a polypropylene sheet or film which comprises passing a molten sheet or film of a polypropylene composition, the composition comprising polypropylene and at least one additive selected from the group consisting of a nucleating agent, a finely powdered high melting point polymer, a petroleum resin, a terpene resin, an organic peroxide and a crystalline propylene-based copolymer, between two cooling rolls opposite to each other, the rolls being maintained at a temperature of 10 to 50 °C , and being subjected to specular finishing treatment , and adapted so as to oonvey therebetween a metallic  endless belt having a surface roughness of not more than 1.5µ m under tension , while  carrying the sheet or film on the endless belt.      In accordance with the present invention, there can be ob-tained a polypropylene sheet or film excellent in transparency and surface gloss although not stretched.    The sheet or film obtained is good in transparency and sur-face gloss even though it is thick-walled.    Moreover the present invention permits to produce the sheet or film as described above at a high speed, and it has an advan-tape of being excellent in productivity because the process can be carried out at relatively high temperatures compared with water cooling, for example.
Patent CA-2061508-C (CA)
Title: Smoke detector with automatic dialing
Inventor: GILBERT RAYMOND
IPC: H04M11/04
Filed: 1992-02-19
Granted: 2000-11-07
Abstract: A smoke detector casing of conventional size and adapted to be secured in any room of a residence or the like, contains not only a smoke detector, an audible alarm and their circuit with a 9 volts alkaline battery as a power supply but also a microprocessor and an automatic telephone dialer and a modem together with a telephone jack for connecting the circuit to a telephone line so as to immediately dial and send a smoke detection signal to a central monitoring station. The circuit of the smoke detector is also used for transmitting emergency signals others than fire alarms. The smoke detector casing also encloses a high sensitivity combined microphone and loud speaker to provide for direct bi-directional voice communication between the occupant of the monitored area and the attendant at the central monitoring station. The direction of the voice communication is controlled by the attendant who can thus manage the panic situation.
Patent CA-2063421-C (CA)
Inventor: LEVINE STEPHEN NORMAN
IPC: H04W56/00
Filed: 1990-06-22
Granted: 1997-09-09
Abstract: In a Time Division Multiple Access (TDMA) cellular system, there is provided a mechanism for synchronization and equalization comprising: providing synchronization information (S/S) sufficiently removed from the start of a TDM slot so as to maintain the integrity of that synchronization information (S/S) at adjacent cells and providing that synchronization information (S/S) not so far removed from the start of the slot as to necessitate adaptive equalization of information preceding the synchronization information (S/S) for sufficiently reliable recovery. The equalization is further enhanced by providing, roughly mid-way between the synchronization information (S/S) and the end of the slot, additional information (CC) upon which equalization may retrain. Accordingly, equalizers perform retrospective, non-adaptive equalization of information preceding the synchronization information (S/S), perform adaptive equalization of information following that synchronization information (S/S), and retrain utilizing known bit-sequences elsewhere within the TDM slot; the additional information (CC) comprises known bit-sequences identifying cells.
Patent CA-2063574-C (CA)
Title: Roller bushing
Inventor: LINK LARRY RAY
IPC: F16F1/28
Filed: 1990-07-17
Granted: 2000-02-15
Abstract: A roller bushing assembly for use in a vehicular leaf spring suspension system pivotally supports an end of a leaf spring (2) so as to minimize transmission of roadway induced shock and vibration loads to the vehicle and driver. The roller bushing assembly (21) includes a tubular housing (29) containing roller bearings (33, 34) for support of a shaft (40) which is connected to a vehicle chassis (1). Free flexure of the spring (2) is facilitated by providing low friction pin connections that minimize resistance of the vehicle/spring connections to rotation of the spring ends and extension and contraction of the spring. A method of installation of a bushing (21) having bearings (33, 34) therein includes supporting the bearings on a pilot and force-fitting the tubular housing (29) into a spring eye (5, 9) with a pressing tool. After removal of the pilot from the bearings, the shaft (40) is inserted into the bearings and seals (36, 37) are slid along the shaft to abut and seal the bearings against intrusion of foreign matter.
Patent CA-2072296-C (CA)
Title: Switching cirucit protection apparatus and method
Inventor: KANAI TAKEO
IPC: H02H9/04
Filed: 1992-06-25
Granted: 1997-10-28
Abstract: In a switching circuit having multiple parallel circuits having at least one switching element having a characteristic of firing by themselves due to over-voltage, this invention is to provide a switching circuit protection apparatus which prevents the flowing of a current concentrated in the first of the parallel circuits to fire due to over-voltage.    The apparatus in this invention comprises a switching circuit composed by connecting in parallel multiple circuits having at least one switching element having a characteristic of self-firing due to over-voltage, detecting means for detecting the self-firing of the switching element in the switching circuit, and firing means for applying an firing pulse to all the switching elements in response to an output signal applied from the detecting means and firing all the switching elements at the same time by the firing pulse.
Patent CA-2074397-C (CA)
Title: Ink feeding device for a printing press
Inventor: IJICHI YUJI
IPC: B41F31/03
Filed: 1992-07-22
Granted: 1998-11-10
Abstract: An ink feeding device (12) for a printing press (10) having an ink pan (40) having a cavity (42) to receive and retain ink, a rotatable fountain roller (14) mounted in the cavity (42) of the pan (40), a device (28) for rotating the fountain roller (14), a rotatable metering roller (16) positioned to receive ink from the fountain roller (14), a device (30) for rotating the metering roller (16), a doctor blade (50) for removing residual ink from the metering roller (16), a rotatable impeller (44) mounted on one side of the fountain roller (14) in the cavity (42) of the pan (40) generally below the doctor blade (50) and having a plurality of blades (46) to direct ink returned by the doctor blade (50) towards the fountain roller (14), and a device (48) for rotating the impeller (44).
Patent CA-2077237-C (CA)
Title: Sor exposure system and method of manufacturing semiconductor devices using same
Inventor: MORI MAKIKO
IPC: G03F7/20
Filed: 1992-08-31
Granted: 1998-08-18
Abstract: In an SOR exposure system for transferring patterns on masks to semiconductor wafers by using SOR light reflected by an X-ray reflecting mirror, a first shutter device for shielding at least .gamma. rays and a second shutter device for shielding X-rays are provided between the SOR ring and the mirror inside a beam port, and an exposure adjustment device for adjusting the amount of exposure when a circuit pattern on a mask is transferred to a wafer is provided between the mirror and the wafer.  As a result, the human body can be protected against radiation rays, such as gamma rays, generated from the SOR ring when electrons are implanted thereto or when the SOR ring is stopped.  Damage to the X-ray reflecting mirror caused by radiation rays is reduced, and stable reflectance of the mirror can be obtained.          Maintenance of the SOR exposure system is also made easier.
Patent CA-2077894-C (CA)
Title: Improved audio distribution system
Inventor: FARENELLI ROBERT
IPC: H04M1/715
Filed: 1992-01-09
Granted: 1996-01-30
Abstract: A signal distribution and communication ar-rangement (100) controls the broadcast of different types of signals through speakers located in various zones (A-D). The arrangement includes an audio re-ceiver circuit (102) which responds to a music signal from an external music source, and an associated threshold detection circuit which provides a music mute function. Further, a page interface circuit, re-sponds to a page signal generated from a telephone handset (126), which generates a paging control signal and serves as a power source to the telephone handset; and a doorbell interface circuit responds to any of a plurality of doorbell signal sources at differing loca-tions (106, 107, 108) by generating a doorbell control signal and activating a corresponding doorbell tone se-quence which identifies the location of the doorbell sig-nal source. Finally, a control circuit, responds to these various circuits by selecting which of the correspond-ing signals should be broadcast by the speakers (L, R).
Patent CA-2079448-C (CA)
Title: Lanthanide chelate-conjugated oligonucleotides
Inventor: SHERMAN DAVID GORDON
IPC: C12Q1/68
Filed: 1992-02-10
Granted: 2000-05-23
Abstract: Rare earth chelate-conjugated oligonucleotides useful in nucleic acid hybridization assays and for generating chelate-la-belled probes of any desired sequence are disclosed. The particular class of chelates utilized exhibit an unusually high efficiency of rare earth element capture, correlated with emission of a high level of signal in time-resolved fluorescence spectroscopy compared to other structurally related chelate compounds,
Patent CA-2079993-C (CA)
Inventor: OKA KENGO
IPC: A63B37/00
Filed: 1992-10-06
Granted: 1996-07-16
Abstract: A golf ball dimple, formed on the spherical surface of a golf ball, is polygonal in its surface configuration and has a double slope in its sectional configuration.  The gradient of one slope in the vicinity of an edge of the dimple is greater than that of the other slope in the vicinity of the bottom of the dimple so that the dimple has a plane having a large angle with respect to air flow at the periphery of the ball.
Patent CA-2080421-C (CA)
Title: Facsimile equipment
Inventor: NOZAWA MASAKO
IPC: H04N1/32
Filed: 1992-10-13
Granted: 1997-01-14
Abstract: A facsimile equipment in which a document data received from another facsimile equipment is once stored in an image memory and the document data can be transmitted to another facsimile equipment directly from the image memory without printing out the received document data and then reading the printed document. Further, the facsimile equipment also has a function of transmitting the document data in a circulation manner by transmitting circulation table together with the document data.  By defining the handling of the circulation table in each of the destination facsimile equipments, the document data can be automatically circulated among the facsimile equipments.
Patent CA-2084418-C (CA)
Title: Twin roll-type sheet continuous casting method and apparatus
Inventor: MIZOGUCHI TOSHIAKI
IPC: B22D11/06
Filed: 1992-04-16
Granted: 1997-02-25
Abstract: A twin roll-type sheet continuous casting apparatus includes a nozzle (14) for supplying molten metal; a pair of casting rolls (11, 12) for casting the molten metal, supplied from the nozzle (14), into a sheet, the casting rolls being horizontally disposed in parallel relation to each other, and being cooled, and being rotated in opposite directions, respectively; a coiler (17); and a support sheet (16) extending generally horizontally below the pair of casting rolls, and being taken up by the coiler.  Since tension is not applied to the cast sheet, even a brittle material, not to mention a ductile material, can be continuously cast into a sheet. And besides, a dummy sheet required for starting the casting of the sheet becomes unnecessary, and even when a rupture of the sheet occurs, the apparatus can be continuously operated without stopping the operation.
Patent CA-2085321-C (CA)
Title: Mobile crusher
Inventor: FRICK DIETMAR
IPC: B02C21/02
Filed: 1992-12-14
Granted: 2004-05-04
Abstract: A mobile crusher includes a caterpillar-type undercarriage and a chassis frame mounted on the undercarriage. A motor-driven crushing tool is mounted in the chassis frame. A hopper is connected to the chassis frame, so as to be swingable relative to the undercarriage about a horizontal axis. At least one conveyor for discharging crushed material from the crushing tool is connected to the chassis frame. A downwardly connected kingbolt which can be coupled to a coupling member of a tractor is attached to the underside of the hopper at a location remote from the horizontal axis of the chassis frame. A wheel unit with a plurality of wheels is connected to a conveyor frame which supports the conveyor.
Patent CA-2085356-C (CA)
Inventor: HNIZDOR THOMAS A
IPC: A01K85/00
Filed: 1991-07-02
Granted: 2001-11-20
Abstract: A method of applying a design; such as a simulated live fish design, onto an artificial fly body (12) includes the step of ap-plying a base layer (34) of lacquer over the entire primed exterior surface of a buyoant artificial fly body (12). A first overlay (36) of a lacquer is applied in a predetermined pattern, i.e., stripes, dots, etc:  at predetermined discrete locations on the artificial fly body (12) while the base layer (34) is still wet. While the first overlay (36) of lacquer is still wet, a second overlay (38) of a lacquer is applied over the first overlay (36). The second overlay (38) mixes with the first overlay (36) of lacquer and flows outward from its point of initial application to a boundary spaced from the edge of the first overlay (36). A peripheral edge portion of the first overlay (36) remains exposed around the second overlay (38). Finally, a clear layer (40) of lacquer is applied over the entire artifi-cial fly body (12) after all of the overlays are dry. A third overlay (44) may be optionally applied over certain of the second over-lays (38), while the second overlays (38) are still wet, to simulate other patterns, such as eyes, found in live fish.
Patent CA-2091954-C (CA)
Inventor: SCHMIDT ARNOLD
IPC: B02C13/284
Filed: 1993-03-18
Granted: 1998-07-14
Abstract: A rotary mill, particularly designed for the milling of flour, includes a screen assembly within which the hammer assembly rotates. It consists of a fine inner cylindrical screen surrounded by a coarse support screen. The cylindrical end edges of the screens are supported in end channels. The intake end of the cylindrical screen is provided with an annular wear plate around the inside thereof and extending two or three inches inwardly to protect the fine screen against heavy wear as the whole grain is entering and beginning to be broken up by the hammer assembly. A lip projects inwardly from the free edge of the wear strip to restrain movement of large particles onto the screen.
Patent CA-2094639-C (CA)
Title: Transformer-less hybrid circuit
Inventor: LATURELL DONALD RAYMOND
IPC: H04B3/23
Filed: 1993-04-22
Granted: 1997-05-06
Abstract: An improved transformer-less electronic isolating transformer is obtained with an output subcircuit that outputs a controlled current rather thanvoltage. Specifically, the improved hybrid comprises an output drive subcircuit that receives an ac signal and creates a corresponding current that is passed to the line that supports two way communication. The subcircuit not only converts the applied voltage to current but includes means for effecting gain. Signals arriving to the hybrid from the line are applied directly to a near-end echo circuit that is also responsive to the signal applied to the output drive subcircuit. Both the input of the output drive subcircuit and the output of the near-end echo subcircuit are isolated with opto-isolators that employ photodiodes in their photo-voltaic mode.
Patent CA-2096517-C (CA)
Inventor: DANE PRESTON
IPC: G01C19/72
Filed: 1991-12-18
Granted: 1998-08-11
Abstract: A bias modulation amplitude monitoring system for a rotation sensor having a pai r of output signal component detector to provide magnitudes of the corresponding frequency components in that signal whic h are used by a component relationship determination arrangement capable of adjusting the output signal to have a selec ted value in a range of values for a selected rate of rotation thereof, and to correct variations therein.
Patent CA-2099496-C (CA)
Title: Process of preparing sulfate-containing basic solutions of polyaluminumchloride
Inventor: HAAKE GERHARD
IPC: C01F7/786
Filed: 1992-06-24
Granted: 2002-11-26
Abstract: Described is a method of preparing sulphate-containing basic poly(aluminium chloride) solutions. This is done by disinte-grating aluminium-containing salts with hydrochloric acid, filtering off the solid precipitate from the resultant suspension and evaporating down the residue-free solution to crystallize out AlCl3 x 6 H2O.  The AlCl3 x 6 H2O obtained is then decomposed by heating at 150 to 200°C to give a solid basic aluminium chloride which is placed in aqueous sulphuric acid and dis-solved to form Al(OH)xCly(SO~)z. Finally, the basic aluminium chloride sulphate solution obtained is warmed for 1 to 3 hours at 40 to 70°C.
Patent CA-2102991-C (CA)
Inventor: SAMPSON ERNEST C
IPC: F16D51/22
Filed: 1993-11-12
Granted: 1999-02-09
Abstract: An S-cam assembly (33) is disclosed for expanding internal shoe brakes of the type comprising a pair of pivotally mounted brake shoes (17) located within a brake drum (11), each brake shoe carrying a cam follower (31). The assembly comprises an S-cam member (35) comprising a pair of substantially identical working portions (37), each working portion defining a working surface(39) and defining a nominal lift circle having a diameter D1. Each working portion includes a ramp member (43) pivotable about a pin (47) from a retracted position (FIG. 2) in which a ramp surface (51) is disposed within the nominal lift circle. Each ramp member has an extended position (FIG. 5) in which the ramp surface is disposed outward of the nominal lift circle and in engagement with the adjacent cam follower (31) and defining a larger lift circle having a diameter D2. The substantially increased reserve lift is accomplished without increasing the minimum installation diameter of the S-cam assembly.
Patent CA-2103023-C (CA)
Title: Method and system for injection molding utilizing pressurized fluid source within a chamber in the mold
Inventor: HENDRY JAMES WATSON
IPC: B29C45/17
Filed: 1992-01-22
Granted: 1997-01-28
Abstract: A method and system for the injection molding of plastic articles in an injection molding system including a chamber (18) in a mold of the system which stores a charge of pressurized gas immediately prior to use. The mold has an injection aperture and a mold cavity for receiving molten resin. A resin flow path (14) fluidly communicates the injection aperture and the mold cavity within the mold. An orifice (20) in the mold opens the chamber (18) to the mold. A gas receiver (10) initially stores the charge of pressurized gas and a fluid circuit selectively introduces the charge of pressurized fluid into the chamber (18). A valve mechanism (24) in the chamber (18) selectively fluidly communicates the chamber (18) to the flow path (14) under control of a controller (28). When communicated to the flow path (14), the charge of gas distributes the molten plastic within the mold cavity in one embodi-ment of the invention.
Patent CA-2104607-C (CA)
IPC: C22C33/02
Filed: 1992-12-21
Granted: 1999-03-09
Abstract: A process of coining sintered articles of powder metal comprising: blending carb on, ferro manganese, and lubricant with compressible elemental iron powder, pressing the blended mixture to form the articles, high temperature sintering of the articles in a reducing atmosphere and then coining the sintered articles to final shape so as to narrow the tolerance variability of coined articles and substantially eliminate secondary operations.
Patent CA-2112595-C (CA)
Title: Systeme de recuperation de rythme
Inventor: WEBB WILLIAM TIMOTHY
IPC: H04L7/033
Filed: 1992-07-02
Granted: 2000-02-01
Abstract: L'invention décrit un procédé de récupération d'informations de synchronisation, ainsi qu'un système de récupération d'horloge pour des signaux de données numériques, dans lequel on évalue un signal de données numériques, afin de déterminer l'apparition d'une pointe dans une partie dudit signal, ainsi que la conformité de ladite pointe à produire une information de synchronisation. Dans le système de récupération d'horloge décrit par l'invention, un dispositif d'évaluation de pointe comporte un détecteur de pointe maximum (11) servant à déterminer la valeur de suréchantillonnage maximum dans une période symbolique et le point d'échantillonnage auquel ce maximum est apparu, ainsi qu'un calculateur de décompte de pointe (12) servant à établir une mesure de la conformité de la pointe, au moyen de l'évaluation des gradients de certaines parties de ladite pointe. On compare le décompte de pointe associé à un maximum dans le signal à un décompte de pointe minimum, établi de façon similaire, au moyen d'un comparateur (3) et le décompte supérieur est appliqué à un commutateur (4) qui procède à la mise à jour d'une boucle de synchronisation de phase (5) si le décompte sélectionné dépasse un seuil, avec le point d'échantillonnage auquel ladite pointe est apparue.
Patent CA-2117636-C (CA)
Inventor: WUETHRICH ALBRECHT
IPC: F16L37/38
Filed: 1994-01-18
Granted: 2005-10-11
Abstract: An insertable type safety coupling for pressure pipes has a coupling socket inside which is swivellingly mounted a locking member and into which a nipple may be inserted for coupling and uncoupling without pressure. The locking member may be secured against swivelling at least in its through-position in the pipe by means of at least one bolt or cam.      The bolt or cam is slidingly guided on the coupling socket and in its blocked position it engages a bore or recess in the locking member. The locking member has a recess that extends around its throughbore in a perpendicular direction to its pivoting axis. An adapter with a through bore is form-fittingly and sealingly set into the recess of the locking member. The inside of the adapter is designed as a socket for the nipple.