baber/WOPTO huggingface dataset:
Patent CA-2033102-A1 (CA)
Title: Keyboard
Inventor: ROSSI MARKKU
IPC: H01H13/02
Filed: 1990-12-20
Abstract: A novel keyboard is mounted in association with a circuit board with a light source which is mounted on the circuit board for emitting light. At least one depressible key is mounted for movement between a rest position and a depressed position, the depressible key having a body part which is formed of a light diffusing and transmitting material, the body part receiving light directly from the light source. A key cap is mounted on the body part, the body part moving concurrently with the key cap when the depressible key is depressed. A photoelectric member is mounted on the circuit board at a distance from the light source, the photoelectric member producing a change in electrical signal depending on the amount of light reaching the photoelectric member, at least a portion of the light reaching the photoelectric member being diffused through the body part when the depressible key is in the rest position. A light barrier is positioned between the light source and the photoelectric member when the depressible key is in the depressed position, the barrier shielding the photoelectric member from the light which is directly emitted from the light source and from the light which is diffused through the body part when the depressible key is in the depressed position.
Patent CA-2035160-A1 (CA)
Title: Ceramic spray coating material
Inventor: SUGITANI NOBUHIRO
IPC: B22D11/059
Filed: 1991-01-29
Abstract: ABSTRACT      A ceramic spray, e.g. for coating on the inner surface of a casting mold, comprises zirconia and yttria of a purity of at least 99.6%.
Patent CA-2035268-A1 (CA)
Title: Batch composition for making infrared and ultraviolet radiation absorbing green glass
Inventor: CHENG J JOSEPH
IPC: C03C1/10
Filed: 1991-01-30
Abstract: ABSTRACT    An infrared energy and ultraviolet radiation absorbing green-colored high total iron containing soda-lime-silica glass batch includes typical soda-lime-silica glass batch ingredients, an ultraviolet radiation absorbing quantity of a cerium containing compound, a high amount of total iron, and a surprisingly small amount of carbon which eliminates silica scum formation in the melt and silica inclusion faults in the finished glass.
Patent CA-2035796-A1 (CA)
Inventor: BROWN DAVID C
IPC: H05K7/14
Filed: 1991-02-06
Abstract: EQUIPMENT SHELF          Abstract of the Disclosure An equipment shelf includes circuit board slides being arranged to support edges of circuit boards, whereby the circuit boards are removably retained in a system.  First and second end panels are fixed in a spaced apart relationship by a pair of front cross connecting members and by a pair of rear cross connecting members.  Each of the circuit board slides is carried between an inner edge of a front cross connecting member and an inner side of a rear cross connecting member.  As each board slide is overlapped by only one of the cross connecting members, the cross connecting members are more widely spaced from front to back than would otherwise be the case, whereby greater area for a flow of a ventilating medium is available.
Patent CA-2036551-A1 (CA)
Title: Skid steer vehicle
Inventor: BAMFORD JOSEPH C
IPC: E02F9/16
Filed: 1991-02-18
Abstract: ABSTRACT            "Skid Steer Vehicle"   A skid steer vehicle comprising a body having a front end and a rear end and an operator's compartment in which is provided an operator's seat and the body being provided with a pair of ground engageable propulsion means disposed on opposite sides of the vehicle, whereby the vehicle can be propelled and steered by driving the ground engageable propulsion means on one side of the vehicle at the same or at a different speed and/or direction from that on the other side wherein a restraint member is mounted on the body for movement between an operative position in which the restraint member extends transversely of the operator's compartment in restraining relationship with the seat and an inoperative position in which passage of an operator into and out of the seat is permitted wherein the restraint member is carried on at least one lever which is pivotally mounted on the body for movement between an operative position and a generally forward inoperative position.
Patent CA-2037533-A1 (CA)
Title: Remoguard
Inventor: LANTEIGNE DARCY
IPC: H05K5/03
Filed: 1991-03-05
Abstract: Property of: Darcy Lanteigne 656 Jean Talon W.,Mtl. H3N 2NI Montreal, January 1st, 1991 ABSTRACT     A Protective Casing for Remote Controls with a Transparent side for operating Infra-Red Control Light.  An opening on Top Side with a soft Plastic cover flexible enough to operate button controls on Remote Control.  In this Invention the Remote Control Box is secured inside this case by Foam or Velcro or both with preglued sides on them holding the Remote Control in place.  The Cover is then set on Top this case enclosing the Control Box, making it resistant to Normal Wear and Tear, Shock, Water and at the same time having the abil-ity to Remain operational in its normal function.
Patent CA-2037601-A1 (CA)
Title: A water and/or oil-impermeable sealing mat consisting substantially of a substrate layer, a layer of swellable clay and a cover layer
Inventor: HEERTEN GEORG
IPC: B32B7/02
Filed: 1991-03-06
Abstract: A water and/or oil-impermeable sealing mat is provided in form of a bentonite non-woven fabric combination with the possibility of transmitting shear from one batt layer to the other, i.e. on a slope shearing forces can be transmitted by the covering batt material through the layer of swellable clay into the supporting batt material. Such a sealing mat is a fiber-reinforced mineral seal permitting the transmission of shearing forces on slopes, without the risk of the layer of swellable clay itself becoming the preferred sliding plane. The sealing mat consists of a non-woven textile material as substrate layer, a layer of swellable clay, preferably sodium bentonite, and a cover layer consisting preferably also on a non-woven textile material, all three layers having been needlepunched together in the conventional manner in a needle loom. When moistened, the clay swells and forms the water and/or oil-impermeable layer. The water and/or oil-impermeable sealing mat is used especially in hydraulic engineering and in waste disposel engineering.
Patent CA-2038100-A1 (CA)
Title: Frangible nonlethal projectile
Inventor: LUXTON DAVID
IPC: F42B8/16
Filed: 1991-03-12
Abstract: A nonlethal frangible projectile (1) for delivering fluids and the like to a target is composed of a soft cap portion (4), and a stronger bass portion (7) which plugs the rearward end of the cap. Scoring (19) and a thinned nose region (18) facilitates rupture upon impact.
Patent CA-2038716-A1 (CA)
Title: Stabilizer for 4-ethyl-2-hydroxyimino-5-nitro-3-hexenamide-containing preparation, stabilizing method thereof and drug stabilized thereby
Inventor: UEDA YOSHIO
IPC: A61K47/12
Filed: 1991-03-20
Abstract: ABSTRACT       A stabilizer for  4-ethyl-2-hydroxyimino-5-nitro-3-hexenamide represented by the following chemical formula (I) or a salt thereof acceptable as drug or drug containing as pharmacologically active ingredient a compound represented by a chemical formula (I) , in particular, (?)-(E)-4-ethyl-2-[(E)-hydroxyimino]-5-nitro-3-hexenamide or salt/s thereof acceptable as drugs, a stabilizing method by the use thereof and drugs containing such stabilizer and stabilized thereby.                   ...(I)
Patent CA-2039067-A1 (CA)
Inventor: CARLSON JOHN
IPC: B63H25/10
Filed: 1991-03-26
Abstract: A boat steering assembly  (10)  having a substantially circular rotary gear (12) engaging an output gear such that the leverage is varied between the output gear (16,  16')  and the steering wheel (32).  The steering wheel (32) has a shaft gear (28) engaging in idler gear  (22)  which eccentrically rotates the circular gear (12) about the first axis (14).  The eccentrically rotating circular gear (12) engages the output gear (16, 16') having a partially sinusoidal profile thereby automatically varying the distance  (i.e.,  leverage)  between the first axis (14)  and  a  point  of  contact  (52)  between  the circular (12) and output (16, 16') gears.
Patent CA-2041468-A1 (CA)
Title: Method for bleaching pulps
Inventor: ENDO HAJIME
IPC: D21C9/10
Filed: 1991-04-25
Abstract: ABSTRACT   A novel process for bleaching pulps with a bleaching solution, containing peroxide, which comprises use of, as an additional component of the bleaching solution, an activator which liberates nascent oxygen upon reaction with the peroxide, such as, tetraacetylethylenediamine and so on. The inventive method permits economization of the bleaching agent used, reduction of the bleaching time and a lowering of the bleaching temperature.
Patent CA-2043871-A1 (CA)
Inventor: GERRIET JACQUES
IPC: G06K9/00
Filed: 1991-06-04
Abstract: PRECIS DE LA DIVULGATION :      Ces moyens de classement comportent des parois délimi-tant un volume qui reçoit des documents devant être gérés dans le temps. Les moyens constitutifs d'un échéancier électronique, assurant la gestion dans le temps des documents, sont intégrés dans ou appliqués contre au moins l'une des parois. L'échéan-cier électronique comprend : des moyens de saisie et de mémo-risation d'informations relatives aux documents, des moyens de décompte du temps, des moyens de mémorisation et d'exécu-tion d'un programme de gestion de documents en fonction du temps, et des moyens de visualisation d'arrivées à échéance re-latives à ces documents. L'ensemble peut se présenter sous la forme d'un classeur, les moyens constitutifs de l'échéancier étant intégrés dans l'épaisseur de la couverture du classeur.
Patent CA-2045921-A1 (CA)
Title: Detergent composition containing a biodegradable grafted polysaccharide
Inventor: JOST PHILIPPE
IPC: C08B31/00
Filed: 1991-06-28
Abstract: Detergent composition comprising as "builder" an at least partially biodegradable grafted polysaccharide consisting of a polydextrose of average molecular mass of less than 10,000 grafted with a water-soluble ethylenically unsaturated monomer.
Patent CA-2047906-A1 (CA)
Title: Silicone rubber composition for high voltage electrical insulators
Inventor: KUNIEDA SHIGEHIKO
IPC: C08K3/36
Filed: 1991-07-25
Abstract: Abstract A silicone rubber composition for high voltage electrical insulators capable of being converted to a rubbery elastomer superior in high voltage electrical insulating characteristics is provided.  The composition comprises the following components (a) to (e) and not containing a platinum catalayst:          (a)       100 parts by weight of an organopolysiloxane gum represented by an average unit formula of RaSiO    wherein R is a monovalent hydrocarbon group, of which at least 50 mole% is alkyl, and a is a number of 1.98 to 2.02;          (b)       10 - 100 parts by weight of a finely divided silica filler;          (c)       15 - 300 parts by weight of aluminum hydroxide;          (d)       1 - 20 parts by weight of an organosilane or organosiloxane oligomer represented by the general formula   wherein R1 and R2, which may be the same or diferent, are each an unsubstituted or substituted monovalent hydrocarbon group, at least one of which is pehnyl, m is an integer of 1 to 20 and n is an integer of 0 to 20; and (e)     0.05 - 6 parts by weight of an organic peroxide.
Patent CA-2049003-A1 (CA)
Inventor: IYER SHRIDHAR
IPC: D06M23/08
Filed: 1991-02-21
Abstract: A system and method for uniformly coating one or more fibers (10) with particles of a material is described. The method uses a vibrator preferably an acoustic speaker (17b) in a housing (17c) to fluidize the particles (P1) in a chamber (17 or 30) to deposit them on spread fibers (10b). The fibers can be in the form of a tow of fibers. After the particles are coated on the fibers, the particles can be bonded to the fiber such as by using a heater (19). The resulting product has a uniform deposit of the particles and in the case of the tow of fibers can serve as a prepreg for laminate structures to be produced from the coated tow of fibers.
Patent CA-2049988-A1 (CA)
Title: Signal-processing system
Inventor: HARTNACK WOLFGANG
IPC: H04N5/44
Filed: 1990-04-28
Abstract: (54) Title: SIGNAL-PROCESSING SYSTEM          (54) Bezeichnang: SIGNALVERARBEITUNGSSYS          (57) Abstract A video signal with 1250 lines, line inter-lacing and 100 Hz picture frequency, tran-scoded from a video signal with 1250 lines, line interlacing and 50 Hz picture frequency is free from extensive flickering. However, interfer-ences due to a moving interference pattern may occur independently of the content of the pic-ture. By transcoding the video signal with 1250 lines, line interlacing and 50 Hz picture fre-quency in function of the movement into a video signal with 900 lines without line interlac-ing and 75 Hz picture frequency, extensive flickering is avoided and the moving interfer-ence pattern is appreciably reduced, with the same vertical resolution and approximately the same line frequency. Application to digital im-age-signal processing.
Patent CA-2051316-A1 (CA)
Title: Snow cycle attachment for bicycle frame
Inventor: RHODE RANDALL E
IPC: B62K13/00
Filed: 1991-09-13
Abstract: ABSTRACT OF THE DISCLOSURE           A kit for connecting a multiple speed bicycle to a multiple speed snow cycle, the kit including a ski assembly adapted to be mounted on the handlebar column, a drive device mounted on the rear axle and being operatively connected to the bicycle sprocket through a multiple speed derailleur and a dual belt drive assembly mounted on the bicycle below the rear axle, the drive assembly being connected to the drive device to propel the snow cycle on rotation of the sprocket.
Patent CA-2052976-A1 (CA)
Inventor: THEURER JOSEF
IPC: E01B31/26
Filed: 1991-10-08
Abstract: A machine for picking up and storing tie plates of a railroad track comprises the combination of a machine frame, two vertically adjustable tie plate pick-up devices transversely spaced from each other on the machine frame, the tie plate pick-up devices being vertically adjustable between a lower pick-up position wherein their transverse spacing corresponds to the track gage and an upper tie plate depositing position, a storage device arranged on the machine frame for receiving the tie plates from the pick-up devices in their upper tie plate depositing position, a transversely displaceable device mounted on the machine frame for transversely displacing a track tie within a range of about 30 cm to about 100 cm, and a vertically adjustable rail lifting device mounted on the machine frame adjacent the track tie displacing device.
Patent CA-2052979-A1 (CA)
Title: Anti-staining anti-bacterial oral composition
Inventor: GAFFER ABDUL
IPC: A61K8/43
Filed: 1991-10-08
Abstract: ABSTRACT     An oral composition is provided which comprises an oral vehicle and contains at least one antibacterial antiplaque agent which can stain or discolor dental surfaces.  Provided in such oral composition is an effective stain-inhibiting amount of an antistaining additive, such additive being azacycloalkane disphosphonic acid or an orally acceptable salt thereof.
Patent CA-2052995-A1 (CA)
Title: Tray-like container for packaging food products, particularly pasta products, therein
Inventor: GOTTOFREDI ANGELO
IPC: B65D1/26
Filed: 1991-10-08
Abstract: ABSTRACT A tray-like  container      is  provided.  at each side  of its  bottom wall,      with  a rest  foot which,  in co-operation  with a  bead extending around the container      mouth,     makes  a reading desk-like setting thereof a steady one.
Patent CA-2053137-A1 (CA)
Title: Digital wireless interface
Inventor: MEIER ROLF
IPC: H04W88/08
Filed: 1991-10-10
Abstract: An apparatus for establishing communication between one or more digital radio channels and one or more digital wireline signals over the digital radio channels, comprising an r.f. unit for transmitting and receiving circuits, a digital interface unit connected to each wireline circuit, a unit for separating incoming signals into bearer channels and signalling information, and a unit for recombining the outgoing bearer channels and signalling information into the appropriate format for transmission over the outgoing medium.
Patent CA-2053154-A1 (CA)
Title: Solid component of catalyst for the (co)polymerization of ethylene
Inventor: LUCIANI LUCIANO
IPC: C08F4/658
Filed: 1991-10-10
Abstract: "SOLID COMPONENT OF CATALYST FOR THE (CO)POLYMERIZATION  OF ETHYLENE"     Abstract A solid component of catalyst for the (co)polymerization of ethylene is composed of a silica carrier and a catalytically active part including titanium, magnesium, chlorine and alkoxylic groups and is obtained: by suspending an activated silica in a solution of magnesium chloride and titanium tetraalcoholate in a liquid aliphatic acid ester; eliminating the aliphatic acid ester from the resulting suspension to recover a solid;  and making this solid react with an aluminium alkyl chloride. It is preferable to add also some measured quantities of a silicon halide to the solution in aliphatic acid ester.
Patent CA-2053450-A1 (CA)
Title: Liquid cooled electric generating apparatus and method for filling a liquid circulation system therein
Inventor: POLLARD DAVID DICK
IPC: B64D33/08
Filed: 1991-10-15
Abstract: 56,362 ABSTRACT OF THE DISCLOSURE           A liquid cooled electric generating apparatus is provided with a liquid circulation system  that is divided into two  portions.   One of the portions includes a rotor mounted in a rotor cavity such that rotation  of the rotor expels liquid from that portion of the circulation system. A normally open valve connects  the  two  portions  of the liquid  circulation  system.   This valve is automatically closed  during  filling  of  the  portion  of  the  liquid circulation  system  which  does  not  contain  the  rotor cavity.    Both  the  liquid  circulation  system  of  the generating apparatus  and the method of filling the system are encompassed by this invention.
Patent CA-2053687-A1 (CA)
Title: Non-reproducible prescription slip and a pad of the slips
Inventor: MARTIN WAYNE
IPC: B42D5/00
Filed: 1991-10-18
Abstract: ABSTRACT OF THE DISCLOSURE:       A non-reproducible prescription slip comprises a first surface portion on which a name of a prescribing physician is printed, a second surface portion on which identification  indicators  for  a  recipient  of  the prescription  is  printed,  a  third  surface portion  on which  a  signature  indicator  for  a  signature  of  the physician is printed,  and a fourth surface portion on which   a   security   ink   pattern   is   printed,   the prescription  to  be  written  on  the  pattern  by  the physician.   A pad of the above described prescription slips is also disclosed, the pad comprising:  a stack of said prescription slips and advertizement sheets, said advertizement   sheets   being   interlaced   with   said prescription slips at a given interval; and a binding for  holding  said  stack  together,  the binding  having means   for   attaching   the   prescription   slips   and advertizement sheets in a detachable fashion for easy removal  from  the  pad.     Patient  safety  and  the physician's ease of mind are improved.
Patent CA-2054511-A1 (CA)
Title: Preparation of trimethylaluminum
Inventor: TRAN NAM HUNG
IPC: B01J27/12
Filed: 1991-10-30
Abstract: ABSTRACT OF THE DISCLOSURE      Trimethylaluminum can be formed by reacting a methylaluminum chloride, such as dimethylaluminum chloride, with sodium in the presence of an effective amount of an alkali or alkaline earth metal fluoride (e.g., sodium fluoride) to enhance the reaction.
Patent CA-2055422-A1 (CA)
Title: Deposition of tungsten films from mixtures of tungsten hexafluoride, organohydrosilanes and hydrogen
Inventor: ROBERTS DAVID A
IPC: H01L21/285
Filed: 1991-11-13
Abstract: ABSTRACT      A method of depositing tungsten films comprising heating a substrate to a temperature above 200°C in a chemical vapor deposition reactor, flowing a stream of carrier gas over the substrate in the reactor, and simultaneously introducing mixtures of WF6 and organohydrosilanes into the reactor.
Patent CA-2055669-A1 (CA)
Inventor: BERFIELD ROBERT C
IPC: H05F3/02
Filed: 1991-11-15
Abstract: An anti-static dust collector includes a tank and an electrically non-conductive flexible hose, both of which are susceptible to the build-up of static electric charge.  To remove such charge from the hose, the hose includes a helical wire which is connected to the grounding terminal of the electrical power plug used to supply electric power to the dust collector. Where the housing of the vacuum cleaner is electrically non-conductive, accumulation of electrostatic charge from the housing is removed by a metallic strap connected to the interior of the housing and also electrically connected to the grounding terminal of the power plug.
Patent CA-2056247-A1 (CA)
Inventor: BURGER RAYMOND
IPC: F16C33/50
Filed: 1991-11-27
Abstract: Device characterised in that, at each lateral edge of the band (1) is arranged a handling chain (2), each of the metal plates (1') being connected to at least one of the links (2') of each handling chain (2), and in that the pinions (13) engaging with the rolling chain or chains (4) are arranged, at each end of the device, between the pinions (11) engaging with the handling chains (2) and over the same shaft (8) as the latter, the drive ratio between the two types of pinions (11, 13) being such that the linear speed of the endless metal band (1) is equal to twice the linear speed of the rolling chains (4). 
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Patent CA-2057866-A1 (CA)
Title: Method of preparing d-propoxyphene
Inventor: DUCHEK JOHN R
IPC: C07C219/22
Filed: 1990-05-17
Abstract: D-propoxyphene can be prepared by reacting d-oxyphene and propionic anhydride. Preferably, an excess of propionic anhydride is used. The reaction easily proceeds at temperatures of l0 to 80 °C and produces yields exceeding 95 percent of theory. The free base d-propoxyphene can easily be converted in high yields to its hydrochloride or napsylate salts, both analgesics.
Patent CA-2058805-A1 (CA)
Title: Indazole-substituted five- membered heteroaromatic compounds
Inventor: BAKER RAYMOND
IPC: A61K31/41
Filed: 1992-01-06
Abstract: ABSTRACT                 INDAZOLE-SUBSTITUTED FIVE-MEMBERED      HETEROAROMATIC COMPOUNDS            A class of indazole-substituted five-membered heteroaromatic compounds are specific agonists of 5-HT1-like receptors and are therefore useful in the treatment of clinical conditions, in particular migraine and associated disorders, for which a selective agonist of these receptors is indicated.
Patent CA-2061891-A1 (CA)
Title: Flunarizine containing anti-neoplastic compositions
Inventor: VAN GINCKEL ROBERT F
IPC: A61K38/04
Filed: 1992-02-26
Abstract: ABSTRACT     FLUNARIZINE CONTAINING ANTI-NEOPLASTIC COMPOSITIONS     Compositions containing flunarizine and an anti-neoplastic agent for anti-neoplastic therapy. Methods of treating neoplastic diseases comprising the co-administration of flunarizine and an anti-neoplastic agent and method of decreasing or eliminatingdeveloping or existing resistance to anti-neoplastic drug therapy.
Patent CA-2063744-A1 (CA)
Title: Digital micromirror device architecture and timing for use in a pulse-width modulated display system
Inventor: URBANUS PAUL M
IPC: G09G5/39
Filed: 1992-03-23
Abstract: It is possible to replace a standard tuning unit in a television with spatial light modulator circuitry (68) to improve the resolution seen by the viewer. The invention herein provides a system architecture (240), individual part of the system and techniques for minimizing the burst data rate while maintaining a reasonable system speed. The resultant system provides better resolution with a manageable data rate and bandwidth.