baber/WOPTO huggingface dataset:
Patent CA-2079724-A1 (CA)
Inventor: NIMURA HIJIRI
IPC: G01M11/08
Filed: 1992-10-02
Abstract: There is provided a method of identifying a particular optical cable out of a plurality of similar optical cables in a simple, quick and accurate manner without requiring any significant additional cost.  For identifying a particular optical cable C2 out of a plurality of optical cables C1 through C3 by means of a means for transmitting optical signals 11, a signal receiving/detecting means 13 and a signal applying device 16 and by utilizing the fluctuation in the level of optical signal due to the photoelastic effect that appears when external signals are applied to a cable carrying an optical signal, external signals are applied to the outer peripheral surface of each of the optical cable at a plurality of spots to boost the level of fluctuation of optical signal so that the particular optical cable can be identified without fail.  Thus, the method of the present invention can be used to identify a particular optical cable out of a plurality of similar optical cables in an accurate and reliable manner by using a simple means of applying external signals.
Patent CA-2080299-A1 (CA)
Title: Data security arrangement for semiconductor programmable logic devices
Inventor: AUSTIN KENNETH
IPC: G06F1/00
Filed: 1992-10-09
Abstract: A data security arrangement is provided to protect configuration data CDI to be stored in static random access memories SRAM in semiconductor programmable logic devices PLD. The configuration data, which is vulnerable to illegal duplication, is normally held in a read only memory ROM, typically an erasable programmable read only memory. A data coding means is provided to code the configuration data to be loaded to the PLD and a data decoding means is provided in the PLD to decode the coded configuration data.      The coding and decoding means each incorporate maximal length shift registers which generate a pseudo-random sequence of bits. A key value is input to the shift register in the coding means forcing it to start at a particular point in the sequence. The output (bits B28 and B31) of this register is combined in an EXCLUSIVE-OR gate with configuration data and coded data is written to the read only memory ROM. The decoding means in the PLD has a corresponding key value held in a non-volatile memory in the PLD. This is applied to the register of the decoding means, whose output (bits B28 and B31) are combined in an EXCLUSIVE-OR gate with coded configuration data CDIC read from the ROM to produce decoded configuration data CDOD to be stored in the memories.
Patent CA-2084145-A1 (CA)
Title: High purity fused grain in the system a1_o_-cr2o_-mgo
Inventor: RENKEY ALBERT L
IPC: C04B35/12
Filed: 1992-11-30
Abstract: High purity fused grain and refractory compositions that contain a high purity fused grain made up of 35 to 85 wt.% chromia, 5 to 55 wt. % alumina, and 5 to 45 wt.% magnesia.  Burned refractory brick having such a chemistry was found to unexpectedly possess superior resistance to AOD and electric furnace slags.
Patent CA-2085834-A1 (CA)
Title: (1s) -hydroxyalkyl-oxapenem-3-carboxylic acids and their use as betalactamase inhibitors
Inventor: PFAENDLER HANS R
IPC: A61K31/42
Filed: 1992-12-18
Abstract: ABSTRACT            The invention relates to  1-oxapenem-3-carboxylic acids of the following structure:    in which R1, R3, R4 and R5 independently of one another denote pharmaceutically acceptable groups which are connected to the other part of the molecule via carbon-carbon single bonds and which contain 1 to 10 carbon atoms, and in which R2 is hydrogen, alkyl or acyl having up to 10 carbon atoms or an inorganic acid residue. These compounds, as well as their pharmaceutically acceptable salts, esters and amide derivatives are especially useful betalactamase inhibitors. Subject of the invention are also pharmaceutical preparations containing these compounds and procedures for medication, as well as procedures for the preparation of such compounds.
Patent CA-2086480-A1 (CA)
Inventor: BEMIS PETER F
IPC: E04D13/076
Filed: 1992-12-30
Abstract: A rain gutter assembly including an elongated rain gutter including an end and a channel extending longitudinally of the rain gutter, and a connecting member engaged with the end of the rain gutter and including a bayonet portion received in the channel.
Patent CA-2088616-A1 (CA)
Title: Ignition performance monitor and monitoring method for capacitive discharge ignition systems
Inventor: HOEFLICH GARY R
IPC: F02P3/09
Filed: 1993-02-02
Abstract: The ignition performance monitoring method and apparatus determines the time period during which the current generated in the primary winding of an ignition call by a pulse from a capacitive discharge ignition system takes the decay to a zero ampere level and uses this determined period to calculate and indicate the firing voltage required to fire a spark plug. The apparatus includes a current sensor connected to sense the current in the primary winding of the ignition coil and a comparator to compare the sensed current with a reference indicative of a zero ampere current level.      The comparator provides an output signal having a pulse width indicative of the time the sensed current was above the zero ampere level to a processor which uses the output signal and data values unique to the ignition coil employed to determine a firing voltage for a spark plug fired by the ignition coil.
Patent CA-2089230-A1 (CA)
Title: Process and apparatus for compacting silver nitrate
Inventor: PELTO RALPH H
IPC: G03C1/035
Filed: 1993-02-10
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus and process are disclosed for forming compacted silver nitrate bodies.  A slurry comprising silver nitrate crystals is introduced to a rotary screen centrifuge (78). Silver nitrate crystals are separated from the liquor and partially dried on a rotating screen (84).  The separated, partially dried crystals are further dried by contact with an airstream and fall into a hopper (88).  The crystals flow from the hopper into a translucent feed tube (96) and then into a roll compactor (100) that compacts the crystals to form the compacted silver nitrate bodies.  An optical level detector (120, 122) monitors the level of crystals in the feed tube, and a controller (124) controls the speed of the compactor, thereby maintaining the level of crystals in the feed tube within a desired range.  Figure 6.
Patent CA-2090456-A1 (CA)
Title: Enthalpy control for co2 refrigeration system
Inventor: MARTIN PATRICK S
IPC: F25D29/00
Filed: 1991-08-08
Abstract: A method and appara-tus to refrigerate air in a com-partment wherein liquid CO2 is delivered through a first primary heat exchanger (201) such that sufficient heat is ab-sorbed to evaporate the liquid carbon dioxide to form pres-surized vapor. The pressur-ized vapor is heated in a gas fired heater (207) to prevent solidification of the pressur-ized carbon dioxide when it is depressurized to provide is-entropic expansion of the va-por through pneumatically driven fan motors (294, 295) into a secondary hoot ex-changer (250). Orifices (294b, 295b) in inlets to the fan mo-tors and solenoid valves (222, 224) in flow lines to the fan motors keep the vapor pres-surized while the heater sup-plies sufficient heat to pre-vent solidification when the CO2 vapor expands through the motors. CO2 vapor is routed from the second heat exchanger to chill surfaces in a dehumidifier to condense moisture from a stream of air before it flows to the heat exchangers.
Patent CA-2091524-A1 (CA)
Title: Scramble Codec and a Television Receiver Incorporating Same
Inventor: HIRASHIMA MASAYOSHI
IPC: H04N7/167
Filed: 1993-03-11
Abstract: Having been made to overcome the disadvantages of the prior art, the invention has for its object to make it easy to build a scramble encoder and decoder into a television receiver which is to serve both as a data transmitter and as a data receiver and provide is with both the function to receive secured communication data and record them as secured information.    The invention thus relates to a scramble codec comprising a latch means for holding an ID number for securing television or other communication data, a pair of memories which can be alternately loaded with input communication data signals in a predetermined cycle, a shift register which is initialized with the ID number held by the latch means to output dissimilar pseudo-random pulse signals in a predetermined cycle, an address setting circuit which sets, as the initial value, a value corresponding to the output of the shift register in scrambling and a value obtainable by subtracting the output of the shift register from the maximum address value of the memories in descrambling, and an address counter which reads communication data from the address designated by the address setting circuit.  The above scramble codec has both the function of a decoder for scrambled communication data and the function of an encoder for scrambling communication data, is simple in construction and compact and features improved security.     The scramble codec, as such, can be easily built into a receiver such as a television receiver to provide, for example, a television receiver which does not only function as an information receiver but can be used in combination with a VTR or other recording device for the mutual transmission and reception of communication data with security fully retained.     Further improvement in security is obtained when the above scramble codec further comprises a nonvolatile key data memory for holding a specified key data and an EOR circuit which takes the exclusive logical sum of the ID number data held by the latch means and the output of the key data memory, with the output of the EOR circuit being set as the initial value in the shift register which outputs dissimilar pseudorandom pulse signals in a predetermined cycle.
Patent CA-2093958-A1 (CA)
Title: Fall prevention system for billboards
Inventor: BELL MICHAEL
IPC: E04G21/32
Filed: 1993-04-14
Abstract: A system  (20)  for preventing a worker  (32)  from falling off of a billboard.   The system  (20)  comprises a safety  rope  and  a  pair  mounting  assemblies  formed  of interconnected  links.    Each mounting assembly  is mounted adjacent  a  respective  side  of  the  billboard  (22)  and comprises a connector (54)  connected between the links for securing  the  rope  (40)  thereto.    Each  of  the  mounting assemblies  (46,  48)  is movable between and stowed position and an extended position and vice versa.  Each connector (54) is located closely adjacent the rear surface of the billboard (22)  when its associated mounting assembly (46)  is in the stowed position, and is located spaced in front of the front of the billboard when its associated mounting assembly is in (48)  the extended position.   The rope  (40)  is  connected tautly  between  the  connectors  (54)  when  the  mounting assemblies (46, 48) are in the extended position to serve as a sliding anchor point to which a safety device, e.g., safety belt or harness, worn by a worker may be releasably secured.
Patent CA-2096656-A1 (CA)
Title: Integrated solvent extraction/membrane extraction with retentate recycle for improved raffinate yield
Inventor: CHEN TAN-JEN
IPC: C07C15/02
Filed: 1991-11-27
Abstract: Raffinate yield from solvent extraction is improved when the extract phase (5) recovered from the solvent extraction process (2) is subjected to a membrane separation step (6) wherein a saturates/1-ring aromatics rich retentate (8) is produced and a 2+ ring aromatics rich permeate (7) are produced and the saturates/1-ring aromatic rich retentate phase is recycled to the solvent extraction process.
Patent CA-2100308-A1 (CA)
Title: Heteroaromatic compounds and crop protection agents containing them
Inventor: MUELLER BERND
IPC: A61K31/38
Filed: 1993-07-12
Abstract: BASF Aktiengesellschaft     920303      O.Z. 0050/43392 Heteroaromatic compounds and crop protection agents contain-ing them ABSTRACT OF THE DISCLOSURE: Heteroaromatic compounds of the formulae IA and IB                                       IA                         IB where the dashed line is a double bond between the carbon atom and a Z atom, and the index and the substituents have the following meanings:   alkyl, alkoxy, alkylamino R alkyl:          A     a direct bond; alkylene, alkenylene, alkynylene; O, S, S-oxides, N and alkylene derivatives or oxime radicals thereof B     hydrogen, halogen, alkyl, alkenyl, alkynyl;     BASF Aktiengesellschaft     920303      O.Z. 0050/43392 cycloalkyl, cycloalkenyl, cycloalkynyl, heterocyclyl, aryl, hetaryl U          CH2, CHC1, CHR2 or NOR2; x hydrogen, cyano, nitro, halogen, alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, heterocy-clyl, aryl, hetaryl; oxi- and thio derivatives thereof, car-bonyl derivatives thereof, carbonyloxy derivatives thereof, amino derivatives thereof, oxime derivatives thereof, amino which may bear one or two of the abovementioned groups; m 1 or 2, y oxygen or sulfur;          Z1-Z2, Z3-Z4 , together with the carbon atom to which they are bonded, are the radical of a heteroaromatic, and fungicides containing these compounds.
Patent CA-2100333-A1 (CA)
Title: Display having light scattering electro-optical element
Inventor: JONES J PHILLIP
IPC: G02F1/1334
Filed: 1992-01-21
Abstract: A display having a first electrode means (6); a second electrode means (5);  and a display medium (2) positioned between the first and second electrode means (6 and 5), which display medium (2) contains a pleochroic dye, is switchable between a first state in which incident light is substantially absorbed by the pleochroic dye and a second state in which the amount of such ab-sorption is substantially reduced, and is capable of scattering incident light with a scattering half angle between about 5 and about 40 degrees when the display medium (2) is in its second state, while permetting at least 10 % of the incident light to be transmitted.
Patent CA-2101511-A1 (CA)
Title: Package strapping machine
Inventor: LUDTKE PETER
IPC: B65B13/32
Filed: 1993-07-28
Abstract: ABSTRACT OF THE DISCLOSURE     A machine for strapping packages having a package table possessing a slot in the strapping plane through which a strapping material may pass; a strap wrap-around device possessing a gripper consisting of an upper part and a lower part which in its starting position grips the leading section of the strapping material below the package table, and then rotates around the package in the strapping plane, at the same time withdrawing the strapping material from a roll, and then returns to its starting position; a tensioning device which tensions the loop formed by the strapping material around the package; a sealing device which bonds or welds together overlapping sections of the loop, and which consists of an anvil plate slidingly arranged immediately beneath the package in the overlapping zone of the loop, and of a sealing head which can be moved against the overlapping sections and the anvil plate; a first clamp which holds the leading section of the loop close to the end of the anvil plate facing towards the strapping feed-in point; a second clamp which holds the rear section of the loop close to the end of the anvil plate facing away from the feed-in point of the strapping material; a cutting device, which severs the loop from the strapping material once the gripper has gripped the leading section for the subsequent loop, characterized in that the first clamp is arranged at the same height as the anvil plate and below this clamp and above the gripper in its end and starting position, a pusher is arranged which pushes the leading section of the loop below the underside of the anvil plate after the clamp has closed and the gripper has opened, the said pusher device being retractable to its starting position before the sealing head moves upwards, and further characterized in that the feed-in point of the strapping material is arranged on a level higher than the underside of the upper part of the gripper in its starting position, and after the clamp has closed the lower part of the gripper can be moved out of the strapping plane and, before the sealing head and the movable blade move upwards, the lower part of the gripper can be moved back into the strapping plane to grip the leading edge of the subsequent loop.
Patent CA-2101632-A1 (CA)
Inventor: WILLIAMS LEWIS T
IPC: C12N9/24
Filed: 1992-01-31
Abstract: DNA sequences encoding human platelet-derived growth factor receptors (hPDGF-R), and expression constructs comprising sequences which encode a receptor that can be secreted or incorporated into the membrane of a mammalian cell. Peptide fragments with functions equivalent to the wild-type receptor, conferring a PDGF-sensitive mitogenic response on cells lacking the receptor are provided.  The constructs can be used for enhancing PDGF response of cells, determining the regions involved in transducing the signal in response to PDGF binding, providing mutated analogs and evaluating drugs for their physiologic activity. Soluble fragments comprising PDGF receptor sequences are also provided, including important intracellular kinase insert sequences which interact with intracellular proteins.
Patent CA-2101815-A1 (CA)
Inventor: DA SILVA JOSE E M
IPC: E21B33/076
Filed: 1993-08-03
Abstract: The present invention relates to equipment for the interconnection of two lines to allow running of pigs. Particularly, it is applied to subsea pipelines.  This device allows the pigging installations with restraint accessibility. This equipment allows that pigs launched from the first site into the first line, return via the second line back to the first site.  It is of a modular conception, and can be installed at any equipment located at the interconnection point of the two lines, even for existent facilities.
Patent CA-2102257-A1 (CA)
Inventor: SHUTOV FYODOR
IPC: B29C48/405
Filed: 1993-11-02
Abstract: A process and apparatus for pulverization of natural and synthetic polymeric material by applying normal and shear forces sufficient to form fine powder by oppositely rotating generally conical meshing screws. The fine powder may be fluidized to prevent agglomeration and assist in its discharge. The process is suitable for thermoplastic and thermosetting polymers and foams. The process and apparatus are suitable for enhancement of reactivity of polymeric and solid monomeric material to form homopolymers, copolymers, and new polymeric materials. <IMAGE>
Patent CA-2102842-A1 (CA)
Title: Seam-weaving machine for the production of a continuous plastics woven fabric with a jacquard machine arranged underneath the weaving shed
Inventor: HACKER HANS-EUGEN
IPC: D03D41/00
Filed: 1993-11-10
Abstract: ABSTRACT      A seam-weaving machine for the production of a continuous plastics woven fabric by a woven seam with a Jacquard machine for the formation of the weaving shed.          The Jacquard machine is arranged underneath the weaving shed and the harness cords are drawn back by tension springs secured above the weaving shed.  The Jacquard machine is so arranged that the harness cords emerge downwardly from the Jacquard machine and are deflected upwardly through the weaving shed to the tension springs.
Patent CA-2104173-A1 (CA)
Title: Method and system for transmitting sounds of birds at a feeder
Inventor: NOTTINGHAM JOHN R
IPC: A01K39/01
Filed: 1993-08-16
Abstract: Abstract A system and method is provided for transmitting the  sounds of  birds  at a bird feeder to a remote location.  The system comprises a bird feeder having a transmitter unit for transmitting an amplified signal representing sounds generated near the bird feeder, a transmission  medium  for  transmitting  the  amplified signal, and a receiver unit for converting the amplified signal  into  audible  sound.    The  transmitter  unit includes a microphone for converting acoustical sound waves into a signal, an amplifier for amplifying the signal, and a power supply for providing power to the microphone and the amplifier.  The transmission medium may comprise either a length of wire or an antenna.  The power supply may be either a battery or a solar cell.
Patent CA-2104328-A1 (CA)
Title: A ski assembly for a wheel chair
Inventor: RYCROFT DEAN
IPC: A63C5/00
Filed: 1993-08-18
Abstract: A ski assembly for a wheelchair is described, which includes a ski having a tip, a heel opposed to the tip and a wheel receiving opening. An axle support bracket is secured to the ski. An axle is mounted to the axle support bracket.      The axle extends transversely over the wheel receiving opening.  A ground engaging wheel is rotatably mounted on the axle and extends through the wheel receiving opening. The wheel supports the ski in an operative position above and substantially parallel to a groundsurface. A mounting bracket is fixed to the axle. The mounting bracket mounts the ski to a wheelchair for 360 degree rotation about a substantially vertical axis. The length of the ski is sized to permit unobstructed 360 degree rotation.
Patent CA-2105695-A1 (CA)
Title: Device for filling ditches
Inventor: LUEDDECKE KURT
IPC: B60P1/42
Filed: 1993-09-08
Abstract: A b s t r a c t The invention concerns a device for filling ditches, comprising at least:  A vehicle with a driver's cab or a trailer with a detachable tractor for transporting a container for the fill material, as well as a discharger to which the fill material is fed via a feed unit located in the container, whereby the discharge is mounted in the area of the vehicle or trailer between the driver's cab and container, or tractor and container, and aligned essentially diagonally to the vehicle axle so that the fill material is discharged on a side of the vehicle or trailer which is within the field of vision of a person in the driver's cab or tractor.           Figure 4
Patent CA-2107531-A1 (CA)
Title: Amphibious motor vehicle chassis and vehicle including such a chassis
Inventor: WARDAVOIR FRANCOIS
IPC: B60F3/00
Filed: 1993-10-01
Abstract: ABSTRACT            AMPHIBIOUS MOTOR VEHICLE CHASSIS AND  VEHICLE INCLUDING SUCH A CHASSIS         The invention relates to an amphibious motor vehicle chassis including a central box structure (74), at least one front longitudinal member (77) and at least one rear longitudinal member (78) to define two lateral spaces on each side of each longitudinal member.  This chassis includes a main internal structure  (2) placed inside  a  sealed  hull  (19)  and  external structural elements (3, 4, 5) extending outside the hull (19).        Figure 2.
Patent CA-2108300-A1 (CA)
Title: Direct vent fireplace
Inventor: BINZER LOTHAR
IPC: F24B1/18
Filed: 1993-10-13
Abstract: ABSTRACT      A gas fireplace comprising a housing adapted to be located in a building.  There is a first conduit in the housing to act as an air inlet.  In insert is received within the housing.  A second conduit in the insert aligns with and is received by the first conduit.  The invention permits the construction of a gas fireplace in two stages, a first stage in which the housing is built into the building and a second, subsequent to all building activity, in which the insert is received within the housing.
Patent CA-2108307-A1 (CA)
Title: High temperature resistant bearing assembly using thermally expansive and porous solid lubrication
Inventor: BUDRIS ALLAN R
IPC: F16C17/22
Filed: 1993-10-13
Abstract: Strips of polytetrafluoroethylene (i.e., Teflon) are interposed, equally spaced apart, between the journal and sleeve, and journal and collar of a bearing assembly to provide lubrication thereat.  The Teflon strips are fibrous and porous, and compressibly collapsible therefor, to insure that thermal expansion of any one thereof will not unduly load the bearing assembly.  The bearing material has surface voids in which to trap and retain the Teflon which is wiped onto the contact surfaces.