baber/WOPTO huggingface dataset:
Patent CA-2082389-A1 (CA)
Title: Optical signal regenerator and optical communications system incorporating same
Inventor: WEBB RODERICK P
IPC: H04B10/43
Filed: 1991-05-08
Abstract: An optical signal regenerator (2) has a semiconductor laser in a resonant cavity defined by a mirror (6) and a semireflective facet (8) of the laser (4) to form a resonant, non-linear, optical amplifier. A polarisation beam splitter (12) allows resonance in one polarisation mode only. A clock signal generator (16) provides clock signals in the resonant polarisation mode of a power just below the optical power bistable threshold of the amplifier. An information signal coupled to the laser (4) by a lens (24) and the beam splitter (12) is in a non-resonant mode of the amplifier and will give rise to a regenerator output by triggering the bistability. Because the information signal is in a non-resonant mode its wavelength need not be controlled to lie near a resonance peak of the amplifier so reducing control requirements.
Patent CA-2084955-A1 (CA)
Title: Rewritable recording/erasing method and apparatus
Inventor: YAMADA KEIKI
IPC: B41J2/32
Filed: 1992-12-09
Abstract: ABSTRACT OF THE DISCLOSURE     In a rewritable record display using a reversible heat-sensitive record medium, there are provided a rewrita-bly recording and erasing method and apparatus having a display contrast and maximum iterative number which are substantially similar to the limit at which the recording and erasing reactions can be carried out due to the physical or chemical change then the erasing voltage applied to the medium is ranged between 0.3 times and 0.9 times the record-ing voltage, the image formed on the medium can be complete-ly erased improving the maximum iterative number.  In addi-tion, the use of dye other than the organic low-molecular substance showed the characteristics similar to those of the organic low-molecular dye.
Patent CA-2085409-A1 (CA)
Title: Method and apparatus for decoding two-dimensional bar code using ccd/cmd camera
Inventor: SHELLHAMMER STEPHEN J
IPC: G06K19/06
Filed: 1992-12-15
Abstract: ABSTRACT      A method and apparatus for decoding a two-dimensional bar code symbol using a charge coupled device (CCD) camera or a charge-modulation device (CMD) camera.  The CCD/CMD camera takes pictures of the symbol and the picture is converted into digital data.  The location and orientation of the two-dimensional bar code symbol is determined and verified. Defects and damages on the symbol are detected and corrected. The symbol is scanned to read the codewords of the two-dimensional bar code symbol.
Patent CA-2086615-A1 (CA)
Title: Disazo compounds, method for preparing them and their use as dyes
Inventor: SPRINGER HARTMUT
IPC: C09B62/513
Filed: 1991-06-27
Abstract: Disazo compounds which possess fiber-reactive groups and have useful dye properties and are capable of dyeing hydroxyl-and/or carboxamido-containing materials, in particular fiber materials, such as cellulose fibers and natural and synthetic polyamide, such as wool, in strong, fast shades.  They conform to the formula                  (1) where Me is hydrogen or an alkali metal;          K1 is a radical of the formula   and K2 is a radical of the formula   where Me has one of the abovementioned meanings, and n is zero or 1, if zero, this group being hydrogen;          D1 and D2 are each a group of the formula (3a), (3b) or (3c)             (3a)            (3b)                           (3c) where Me has one of the abovementioned meanings, R1 is hydrogen, alkyl of from 1 to 4 carbon atoms, which may be sulfo-, carboxyl- or sulfato-substituted, alkoxy of from 1 to 4 carbon atoms, which may be sulfo-, carboxyl- or sulfato-substituted, chlorine, bromine, hydroxyl, cyano, carboxyl or sulfo, R2 is hydrogen, alkyl of from 1 to 4 carbon atoms or alkoxy of from 1 to 4 carbon atoms, Y  is vinyl, or ethyl which contains in the .beta.-position a substituent which is eliminable by alkali, and m  is zero, 1 or 2 (if zero, this group being hydrogen).
Patent CA-2086701-A1 (CA)
Inventor: BELZILE GILLES
IPC: E02F3/40
Filed: 1993-01-05
Abstract: LE BUTOIR DE GODET            PRECIS:          La présente invention est un appareil forme de plaques rectangulaires qui, installées sur le godet d'un chargeur ou la lame d'un bélier,  forment un entonnoir.   Les butoirs peuvent être installes d'un (1) côté seulement ou des deux (2) côtes du godet ou de la lame.  Cet entonnoir formé devant le godet ou la lame prévient l'écoulement latéral du matériel et augmente la capacité du godet.          Les butoirs accélèrent aussi le nettoyage de coins obtus et,  les plaques de l'entonnoir  étant mobiles,  elles permettent  au  godet  une  grande  inclinaison  afin d'effectuer du grattage (scraping) sur le sol.  Lorsque repliés,   les   butoirs ne   restreignent   en   rien l'utilisation du godet du chargeur et n'augmentent pas non plus la largeur du chargeur pour en empêcher la circulation sur les routes.          La présente  invention innove aussi dans  la façon de puiser l'énergie hydraulique pour lever ou déployer les butoirs.  Chaque butoir puise le fluide hydraulique d'une soupape électromagnétique installée sur le vérin du godet ou du chargeur (celui qui est le plus accessible).  Ces soupapes sont activées à partir du poste de l'opérateur par des commutateurs électriques.
Patent CA-2087714-A1 (CA)
Inventor: WEBB IAN R
IPC: F16L21/00
Filed: 1991-07-23
Abstract: Un raccord de tuyauterie (1) servant à relier deux tuyaux à bouts plans pour les rendre étanches à un fluide, comprend une enveloppe tubulaire extérieure (10), une enveloppe tubulaire intérieure (20) et une gaine d'étanchéité tubulaire (30). La gaine d'étanchéité (30) possède deux jeux de nervures (32) faisant saillie vers l'intérieur et formant étanchéité lorsqu'en utilisation, on les introduit dans les extrémités respectives des tuyaux. Les enveloppes intérieure et extérieure présentent une fente longitudinale et des vis de serrage (17) situées sur l'enveloppe extérieure servent à serrer l'enveloppe extérieure contre l'enveloppe intérieure et la gaine d'étanchéité. Des fentes en forme de cône tronqué (36) situées dans les surfaces extérieures des gaines d'étanchéité servent de logement à des bagues de fixation en cône tronqué (40) pourvues de dents de fixation (42) sur les côtés intérieurs, qui mordent dans les surfaces du tuyau pour empêcher la déformation axiale des tuyaux.
Patent CA-2090870-A1 (CA)
Title: Colour filter adapter with changeable colour for optical pickup and projecting apparatuses resp. method for its production
Inventor: MARTON GEZA
IPC: G02B5/30
Filed: 1991-07-02
Abstract: The invention relates to the optical colour filter with changeable colour can be applied expediently as adapter for optical pickup and projecting apparatuses, wherein layers are arranged influencing the intensity-rate of the components of various wave lengths of the rays of light between the two light-passing barrier layers, resp. the invention relates furthermore to the method for producing such optical colour filter, on the course of which layers are arranged between the two light-passing barrier layers, influencing the intensity-rate of the components of various wave lengths of the rays of light. In the sense of the invention the layer (4) between the barrier layers (2, 5) is made of large molecule foil, while on the course of the method for producing the optical filter adapter, the layer (4) to be placed between the barrier layers (2, 5) is manufactured from various large molecule foil or foils resulting dehomogenized molecule structure.
Patent CA-2091104-A1 (CA)
Title: Process for pharmaceutical grade high purity iodeoxycholic acid preparation
Inventor: BONALDI ANTONIO
IPC: C07J9/00
Filed: 1993-03-05
Abstract: ABSTRACT         Process for pharmaceutical grade high purity iodeoxycholic acid preparation starting from swine bile, consisting in the treatment of swine bile with sodium hydroxide, isolation of iodeoxycholic, chenodeoxycholic and iocholic acids by precipitation of their zinc salts and subsequent selective precipitation of the iodesoxycholic acid magnesium salt, from which the acid is freed by acidification and then crystallized.
Patent CA-2093226-A1 (CA)
Title: High pressure pump seal
Inventor: BEATTIE JOHN M
IPC: F04B53/00
Filed: 1991-10-02
Abstract: An improved high pressure reciprocating plunger pump (2) includes a seal for the plunger (8) comprising a V-shaped elastomeric seal member abutted against a backup member (20). The backup member (20) is made from an acetal polymer, e.g. a Delrin R type material, reinforced with high strength fibers, e.g. Kevlar R  fibers. This provides a backup member (20) having sufficient resistance to seal member extrusion as well as high strength for resisting side loads imposed by the plunger (8).
Patent CA-2095170-A1 (CA)
Title: Process for producing needle-shaped calcium carbonate particles
Inventor: OTA YOSHIO
IPC: C01F11/18
Filed: 1993-04-29
Abstract: ABSTRACT OF THE DISCLOSURE    A process for producing needle-shaped calcium carbonate particles with high efficiency is disclosed.     In the process of the invention, a ternary system comprising calcium chloride, magnesium hydroxide and water is reacted with carbon dioxide gas at a temperature not lower than 60°C.
Patent CA-2097488-A1 (CA)
Inventor: LALLIER JEAN-PIERRE
IPC: C09D9/00
Filed: 1993-06-01
Abstract: Inexpensive paint stripper compositions containing neither chlorinated nor alkaline solvents and well adapted for removing paints such as glycerophthalic, alkyd-urethane or arylic urethane paints on a variety of substrates, e.g. wood and metal substrates comprise (a) 1 to 99% by volume of an aprotic polar  solvent  chosen  from the group comprising: dimethyl sulfoxide, dimethyl formamide, N-methylpyrrolidone, N-methylmorpholine, .gamma.-butyrolactone, acetonitrile and mixtures thereof; and (b) 99 to 1% by volume of an ether selected from the family of ethers having a flash point higher than 0°C, a molar volume less than 160 and a molecule that includes one or several methoxy groups.
Patent CA-2099604-A1 (CA)
Title: Bag for carrying box-shaped objects
Inventor: EKSTROM J FREDRIK
IPC: B65D30/10
Filed: 1990-11-28
Abstract: A bag of flexible material for carrying at least one box, e.g.  containing delicate foodstuff such as a pizza, in a substantially horizontal position. The bag comprises a top portion with handle means (11, 12) and an upper opening, and two wing pouches extending outwardly in opposite directions from the lower end of the top portion. The length (L) of the bag is substantially greater than the length of the box, and the with (W) of the bag, measured at the bottom wall portion constituted by the two wing pouches, corresponds approximately to the width of the box.
Patent CA-2099904-A1 (CA)
Title: A method for growing botanical items and providing a decorative cover for same
Inventor: WEDER DONALD E
IPC: A01G9/10
Filed: 1993-07-06
Abstract: A method for growing botanical items where a liner is disposed in a container. A growing medium is disposed in the liner and a propagule is disposed in the growing medium.      When the botanical item has grown to the desired extent, the liner with the growing medium in the botanical item disposed therein is removed from the container and disposed in a decorative covering thereby permitting the container to be reused for growing other botanical items. In one other embodiment, the decorative covering is placed in the container and the botanical item is grown in the decorative covering which then is removed from the container. In one other embodiment, the botanical item is grown in the decorative covering without the necessity of using a container.
Patent CA-2100387-A1 (CA)
Inventor: STESSENS WERNER J C
IPC: H03M13/35
Filed: 1993-07-13
Abstract: The error detection and correction device detects and corrects single bit errors in a sequence of bits comprising a plurality of n-bit containing subsets applied on a parallel bus IN having m subset parts. It includes a storage module ST connected to the bus IN and which transfers the subsets as they are received on the bus to a divider logic circuit DL. This circuit performs a m*n bit parallel modulo 2 division of the received sequence by a given polynomial and transfers the remainder REM to a comparison circuit C where it is compared with a zero byte or with an error code byte HEC contained in the sequence depending on the position of the first byte of the sequence on the bus. Based on the result of the comparison and using translation tables a processor circuit PR determines the bit position in the sequence of a bit error. A correction logic CL corrects the received sequence. <IMAGE>
Patent CA-2101488-A1 (CA)
Title: Sulfonylureas
Inventor: SCHURTER ROLF
IPC: A01N33/12
Filed: 1993-07-28
Abstract: Novel sulfonylureas Abstract:          N-Pyridylsulfonyl-N'-pyrimidinylureas of formula I                                 (1) wherein R1 is methyl or methoxy and R2 is hydrogen or methyl; and the salts of those compounds with amines, alkali metal or alkaline earth metal bases or with quaternary ammonium bases, have good pre- and post-emergence selective herbicidal and growth-regulating properties.
Patent CA-2103157-A1 (CA)
Inventor: TRUMAN MARK R
IPC: F16C1/10
Filed: 1992-05-21
Abstract: A cable length adjustment device (10) comprising an elongated member (24), a locking member (26) formed to prevent translatory movement of the elongated member when in a first locked position and allow for translatory movement of the elongated member in a second unlocked position, and a housing (22) substantially encasing the locking member.
Patent CA-2108318-A1 (CA)
Title: Eccentrically supported tools for excavating minerals, counterbalanced with reference to counterweights
Inventor: BECHEM KLAUS
IPC: B28D1/26
Filed: 1993-10-13
Abstract: ABSTRACT A propelled eccentric drive for superimposing a percussive action onto drilling,milling, ripping and compacting operations having tools which are compensated/counterbalanced with reference to predetermined counterweights.
Patent CA-2108378-A1 (CA)
Inventor: RINCOE RICHARD G
IPC: A61F2/72
Filed: 1992-04-17
Abstract: A  robotic knee (10) for mounting on an upper leg stump(28), allowing movement from standing position to normal walking position to kneeling position and returning to standing position. A mounting plate (24) receives the upper leg stump. The knee includes a housing (12) having a drive motor (16) which can be rotated one direction to bend knee and reversed to straighten knee. The drive motor turns a worm gear (44) which engages a main drive gear (46). A pair of extension pulleys (48) is mounted on a main drive gear shaft attached to main drive gear. A pair of extension cables (54) is attached at one end to extension  pulleys and wrapped thereon. Another end of extension cables is attached to the front of mounting plate. A pair of flexion pulleys (50) is attached to main drive gear. A pair of flexion cables (68)is attached at one end to flexion pulleys and wrapped thereon. Another end of flexion cables is attached to the rear of mounting plate. On a bottom of mounting plate is a rack(32) with teeth (34). The teeth engage a walking gear segment (36), allowing the plate to move up and down' n a rocking motion by extension and flexion cables, the teeth rock on walk on gear segment allowing  knee to simulate a natural rocking motion.
Patent CA-2112216-A1 (CA)
Title: System for insulating wire including a wire tensioning device
Inventor: AKIN MICKEY E
IPC: B65H59/16
Filed: 1993-12-15
Abstract: A wire tensioning device having a guide for taking up an advancing wire having slack and a brake for applying a braking force to the guides. In a wire insulating system, a wire from a supply reel or spool is passed to a take-up reel or spool, through intervening components, which accumulate, tension and apply insulation to the advancing wire. The wire is first passed from the supply reel to an accumulating device in the form of a vertical accumulator or a flipper payout.      From there it is passed through the device of the present invention having a plurality of rotatable sheaves or pulleys about which the advancing wire is trained. A braking force is applied to one of the sheaves by an air brake to apply a tensioning force.      From the tensioning device, the wire is fed through an insulation-applying crosshead device and then on to a take-up reel or spool.
Patent CA-2112893-A1 (CA)
Inventor: FEINBERG DAVID A
IPC: G01R33/48
Filed: 1992-07-06
Abstract: A fast magnetic resonance whole body imaging method and apparatus. In each of one or more repetition intervals, after an initial NMR RF (90°) nutation pulse a sequence of (180°) RF nutation pulses is used to refocus the RF response into a corre-sponding train of spin echoes (S2, S5, S8). During the time that the spin echoes would normally occur after each (180°) RF pulse, an alternating polarity read-out gradient is applied so as to form a sub-sequence of gradient echoes (S1,S3,S4,S6,S7,S9). Non-contiguous K-space trajectories of the acquired data are interleaved.
Patent CA-2113500-A1 (CA)
Inventor: CALVERT RODNEY K
IPC: B65B43/52
Filed: 1994-01-14
Abstract: ADJUSTABLE FLIGHT BARS FOR PACKAGING MACHINE   ABSTRACT OF THE DISCLOSURE         A system of flight bars each flight bar having a leading component and a trailing component, a first pair of endless driving elements interconnected with each leading component and a second pair of spaced apart endless driving elements interconnected with each trailing component.  Controlled relative movement is imparted to the first and second pair of endless driving elements so as to vary the distance between the trailing component of a flight bar and the leading component of an immediately succeeding flight bar thereby to render the system adaptable for use in conjunction with packages of different horizontal dimensions in the direction of movement of the flight bars.
Patent CA-2118716-A1 (CA)
Title: Method and apparatus for internal combustion engine coolant extractor/injector
Inventor: PAYNE GERRY E
IPC: B60K11/02
Filed: 1992-09-16
Abstract: A device for withdrawing liquids (such as automotive coolant) from and delivering them to containers (such as a radiator) employs a tank (110), an air pressure control assembly (200), and a hose assembly (300). A venturi chamber (220) is used in conjunction with a source of air pressure to create a vacuum in the tank (110) to permit drawing fluids into the tank (110) via the hose assembly (300). The fluid can be subsequently pumped from the tank (110) by applying air pressure to the interior of the tank (110) to force the liquid back through the hose assembly (300). Control valves in the pressure control assembly (200) control the flow of pressurized air to determine the mode of operation. The device can be sealed off from the atmosphere with air under pressure or vacuum held in the tank (110) to permit pumping remote from the supply of pressurized air. A pressure gage (250) can be used to monitor pressure in the tank (110).
Patent CA-2119138-A1 (CA)
Title: Oil, water and sweat repellent microporous membrane materials
Inventor: MROZINSKI JAMES S
IPC: B32B27/00
Filed: 1992-10-16
Abstract: The invention discloses an oleophobic, hydrophobic, water repellent, moisture vapor and air permeable, heat sealable, microporous membrane material suitable for garment applications. The membrane material comprises a polyolefin polymer, a processing compound which is miscible with the polymer at its melt temperature but phase separates when the polymer is cooled to or below its melt temperature, and a fluorochemical composition. The membrane material is oriented in at least one direction. The membrane materials retain their repellency and moisture vapor permeable properties for extended periods of time in garment applications which expose the membrane materials to perspiration residues which are known to generally contaminate and ultimately destroy the repellency properties of conventional liquid repellent, moisture vapor permeable treatments.
Patent CA-2120923-A1 (CA)
Title: Multiple bundle permeator
Inventor: ECKMAN THOMAS J
IPC: B01D63/04
Filed: 1992-10-22
Abstract: A hollow-fiber membrane fluid-separation apparatus containing a plurality of hollow-fiber bundles (20, 21) is disclosed. The apparatus comprises a single-pressure container (22) with a center chamber (64) located in between facing ends (70, 71) of each bundle (20, 21). The center chamber (64) is in communication with an annular space (61) around adjacent bundles and a discharge tube (76) concentrically housed within a feed tube (36). The hollow-fiber membrane fluid separation apparatus is adapted for industrial performance with high volumetric efficiency and high solute rejection. A process for separation of fluids is also provided.
Patent CA-2124461-A1 (CA)
Title: Human interleukin-8 analogs
Inventor: CLARK-LEWIS IAN
IPC: A61K38/00
Filed: 1992-12-03
Abstract: Human interleukin-8 (IL-8) analogs that are modified in the Glu4Leu5Arg6 region, and have a core structure corresponding to the IL-8(7-51) sequence are provided. These neutrophil binding analogs display altered IL-8 activities that can be exploited for therapeutic and other purposes. Such antagonists include those in which, for example, the Leu5 and/or Arg6 residues are replaced, and in which the Glu4 and/or Leu5 residues are deleted. Also provided are biologically active human interleukin-8 (IL-8) analogs comprising a core sequence that includes IL-8(1-51), IL-8(3-51) or IL-8(4-51). This invention also provides pharmaceutical compositions containing the aforementioned analogs.
Patent CA-2127909-A1 (CA)
Inventor: RAHMAN MUJIBAR M
IPC: G02B6/44
Filed: 1994-07-13
Abstract: The invention relates to an optical fiber cable comprising:  a central member; at least one substantially fluid impervious tube wound around said central members; a plurality of optical fibers loosely received in said tube; a sheath of plastic material encircling said tube which is around said central member, said plastic material having a predetermined flame propagating value which prevents flame propagation upon combustion greater than a predetermined value; a thermal barrier layer encircling said tube and said central member and intermediate said tube and said sheath, said thermal barrier layer being electrically non-conductive and non-combustible; a water blocking material in any otherwise empty spaces in said tube and between said thermal barrier layer and said tube, said water blocking material permitting said optical fibers to move with respect to said tube and permitting said tube to move with respect to said thermal barrier layer and to said central structural member.  The cable of the invention reduces termination and splicing problems and, because the fibers are loosely enclosed in tubes, the fibers are free from stress during installation and operation.
Patent CA-2128845-A1 (CA)
Title: Composite wood panels and process and equipment for their realization
Inventor: GROSSI DOMENICO M
IPC: B27M/
Filed: 1994-07-26
Abstract: ?MPOSITE WOOD PANELS AND PROCESS AND EQUIPMENT FOR THEIR REALIZATION            Couples of wood boards (7) (7') are so squared and selected as to cause the veins of their fibers (5) to match; said boards are aligned to form upper (9) and lower (9') external panels suitable to be rigidly coupled,  by means of glueing,  to middle panels (11), which are constituted by transversal laths (12) glued along their sides. The coupling by glueing includes a first stage of vertical compression by a load of 0.5-2 kg/cm2 applied on the superposed lower  (9'),  middle  (11)  and upper panels;  a second stage of lateral compression by a load of 2-4 kg/cm2, which exercises its acitivity only on the external side of the external panels (9), (9'); and a third and final stage of vertical compression by a load of 10-15 kg/cm2.