baber/WOPTO huggingface dataset:
Patent CA-1215739-A (CA)
Inventor: HEAD WILLIAM J
IPC: H05B41/392
Filed: 1982-11-09
Granted: 1986-12-23
Abstract: ABSTRACT OF THE DISCLOSURE          A dimming system for fluorescent tubes wherein counter electromotive forces generated during switch off of the tubes are used to maintain filaments of the fluorescent tubes heated during switch off periods of the tube, the dimming system having source terminals for connection to a source of power,  the power having zero phases,  load terminals for connection to the fluorescent tubes, a switch connected to the source terminals and to the load terminals for controlling the supply of power to the load terminals, a zero phase firing circuit connected to the switch for energizing the switch to supply power to the load terminals at the zero phases, a phase turn off circuit connected to the switch for deenergizing the switch to switch off power to the load terminals at phases of the power other than the zero phases, and a switch off filament heating control circuit connected  to the switch for converting counter electromotive forces generated at switch off of the tube into power for supply to the filaments during switch off.
Patent CA-1194546-A (CA)
Title: Current-type inverter
Inventor: HONBU MITSUYUKI
IPC: H02M7/48
Filed: 1982-11-23
Granted: 1985-10-01
Abstract: Abstract:    A current-type inverter has a bridge circuit for converting d.c. power into a.c. power of a desired frequency.  The d.c. power is supplied from a variable d.c. power source to a motor via a reactor that smooths the current.  The bridge circuit comprises gate-turn off diodes that are rendered conductive or non-conductive responsive to signals supplied to control electrodes thereof.  The d.c. terminals of the bridge circuit are connected to the variable d.c. power source and the reactor, and capacitors are connected across a.c. terminals of the bridge circuit.  The inverter can be constructed in a reduced size and weight compared to prior inverters.
Patent CA-1206114-A (CA)
Inventor: SILVERTHORN CHARLES R
IPC: B65G17/12
Filed: 1983-01-04
Granted: 1986-06-17
Abstract: CONVEYOR CONSTRUCTION               Abstract of the Disclosure A conveyor construction for conveying materials, such as grain, to an elevated location.  The conveyor construction comprises a base or supporting structure and an auger conveyor is mounted horizontally on the base.  Grain is fed into a hopper at one end of the auger and the discharge end of the auger is provided with a pair of kicker paddles which propel the grain laterally into the lower end of a vertical endless belt conveyor.  The endless belt conveyor includes a plurality of integrally molded cleats that convey the grain upwardly within a vertical passage in the conveyor housing and the grain is discharged from the upper end of the hous-ing.  The vertical conveyor is mounted for pivoting movement relative to the auger conveyor to adjust the angularity of the vertical conveyor.
Patent CA-1232100-A (CA)
Inventor: MORIWAKI TAKESHI
IPC: C08F220/14
Filed: 1982-12-31
Granted: 1988-01-26
Abstract: LARGE-CAPACITY-MEMORY DISK              ABSTRACT OF THE DISCLOSURE    In a large capacity memory disk of the type in which data are read out by an optical system, the invention provides a large capacity memory disk characterized in that a methyl methacrylate copolymer consisting of 99 to 20 percent by weight methyl methacrylate and 1 to 80 percent by weight of a monomer copolymerizable with methyl methacrylate is used as the disk substrate.
Patent CA-1193364-A (CA)
Inventor: CORNET JEAN
IPC: G11C13/04
Filed: 1983-03-21
Granted: 1985-09-10
Abstract: ABSTRACT OF THE DISCLOSURE     A  protected optical disc intended for recording information and in particular for digital recording, comprises a rigid element carrying the recording surface, and a flexible element permeable to an optical playback radiation, one of these two elements having the shape of a dish.  At least one of the elements is provided with a central hole for receiving a driving spindle and the joining line or lines between the two elements are concentric with the central hole.
Patent CA-1186065-A (CA)
Inventor: BOWEN TED R
IPC: G06F13/36
Filed: 1983-03-25
Granted: 1985-04-23
Abstract: CIRCUIT FOR EXTENDING A MULTIPLEXED ADDRESS AND DATA BUS TO DISTANT PERIPHERAL DEVICES         ABSTRACT OF THE INVENTION          This circuit provides for extending a multiplexed address and data bus to remotely located computer peripheral devices.  The present circuit eliminates skew of transmitted signals between micro-computers and their associated peripheral devices for lengths of up to one hundred feet.  This circuit regenerates the bus timing for the peripheral device to accommodate the skew introduced by the length of cable and its associated drivers and receivers.
Patent CA-1199727-A (CA)
Inventor: WEILAND WERNER
IPC: G01K13/00
Filed: 1983-03-28
Granted: 1986-01-21
Abstract: ABSTRACT      An apparatus is proposed for providing simple, reliable determination of ovulation in women, and which is also simple and safe to operate, has a temperature-sensor adapted to be placed upon the skin, a micro-processor connected to the temperature-sensor, and an indicating and signaling device connected to the said micro-processor.
Patent CA-1201092-A (CA)
Inventor: THORLEY GRAHAM R
IPC: A61G3/06
Filed: 1983-03-30
Granted: 1986-02-25
Abstract: Abstract of the Disclosure An auxiliary step 28 is provided principly for use with the type of wheelchair lift that mounts to buses and other passenger vehicles wherein the risers and tread 18 of a step structure are extended horizontally to define a platform which can be raised up and down between the sidewalk and the floor of the passenger vehicle to permit the boarding and deboarding of passengers in wheelchairs. The lift structure for which the instant invention is primarily intended folds into two steps between the floor level of the vehicle and the sidewalk or loading station. The instant invention defines a third auxiliary step 28 which can be deployed above the highest step of the plattorm lift. The auxiliary step is more or less independent of the lift mechanism, except that it will alternatively deploy between a step mode wherein it defines a third step, and a vertical barrier mode in which it blocks the open space above the lift structure when the latter is deployed as a lifting platform. The invention modifies the existing platform lift to accommodate passenger vehicles, such as trains and trolleys, in which the vehicle floor is sufficiently high above the sidewalk or boarding platform that three steps, rather than two, are required.
Patent CA-1218038-A (CA)
Inventor: SEWARD BARRY
IPC: A47J31/40
Filed: 1983-05-12
Granted: 1987-02-17
Abstract: ABSTRACT              "Beverage Dispensing"   Sealed beverage packages which in use are opened and the contents mixed with an aqueous medium to provide a beverage.  The packages carry locating means for locating an aqueous medium introducing means such as a hollow needle (30).  The packages may be in sachet form comprising an air- and water-impermeable sheet material (2) where the locating means is a nozzle (8) sealed in an edge seam.  The sachet encloses a filter sheet material (4) enclosing ground coffee (14).  The filter material (4) stops short of the bottom edge of the sachet.  In use the bottom of the sachet is cut open, and the nozzle (8) pierced by needle (30).  Water is introduced into the sachet, infuses with the ground coffee and the beverage is released from the opening in the sachet bottom.   Various versions of the package are described, some without filters, with various forms of locating means and with the package in flexible, rigid or semi-rigid form.       (Figure 3)
Patent CA-1248525-A (CA)
Inventor: SKUBALLA WERNER
IPC: A61K31/557
Filed: 1983-07-12
Granted: 1989-01-10
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention provides a carbacyclin derivative of the general formula             (I), in which R1 represents either a radical of the general formula OR2 in which R2 represents a hydrogen atom or a C1-C4 alkyl radical or the radical         or a radical of the general formula NHR3 in which R3 is hydrogen or 2,3-dihydroxypropyl, X represents a hydrogen atom or a fluoxine atom, A represents a trans-CH=CH- or-C?C-group, W represents a hydroxymethylene group where the OH group may be in the .alpha. - or .beta. -configuration, D represents the group   wherein a straight chain alkylene group with 1 to 5 carbon atoms or a branched chain alkylene group with 2 to 5 carbon atoms, E represents a C?C group or a -CH=C(CH3) group R4 represents an alkyl radical with 1 to 7 carbon atoms and, when R2 is a hydrogen atom, salts with physiologically acceptable bases.  The compounds have a hypotensive and bronchodilative action and are suitable for vasodilation and for inhibiting thrombocyte aggregation and gastric acid secretion.
Patent CA-1241219-A (CA)
Inventor: MANNSCHKE LOTHAR
IPC: G02B6/28
Filed: 1983-08-04
Granted: 1988-08-30
Abstract: ABSTRACT:           The ends of tapered light-wave conductors are focused onto one another by means of a graded index rod lens, the tapered being connected to the end faces of the lens.  The coupling conditions are improved by taking into account the sheath modes emerging from the tapered portions.
Patent CA-1232611-A (CA)
Inventor: BARNABEO AUSTIN E
IPC: C08G77/42
Filed: 1983-08-10
Granted: 1988-02-09
Abstract: ABSTRACT OF THE DISCLOSURE        Polysiloxanes  prepared by reacting a diester and a monomeric silane and the use of the polysiloxanes to produce silane modified, water-curable copolymers by reacting the polysiloxanes with alkylene-alkyl acrylate copolymers in the presence of an organo titanate catalyst. The copolymers so produced can be extruded about electrical condutors and water-cured providing insulation or jacketing thereon.
Patent CA-1196874-A (CA)
Inventor: COPLAN MYRON J
IPC: B01D63/02
Filed: 1983-08-22
Granted: 1985-11-19
Abstract: ABSTRACT OF THE DISCLOSURE     A separatory module includes a plurality of bundles of hollow fiber membranes potted at one end.  The module includes a cylindrical impervious pressure shell, a cluster of bundles within the shell having their axes parallel to but displaced-from the shell axis.  A base member is included provided with cavities to receive the potted ends of the bundles and a back-up disc is disposed to support internal hydraulic thrust on the potted bundle ends.  Fluid feed means are provided for admission of pressurized feed and means are provided for distributing feed fluid uniformly to the bundles.  Means are also provided for collecting and removing permeate passing through the fiber membranes and means are provided for collecting and removing concentrated non-permeated feed fluid.
Patent CA-1246304-A (CA)
Title: Process and apparatus for bleaching of pulp
Inventor: HISTED JOHN A
IPC: D21C9/02
Filed: 1983-09-28
Granted: 1988-12-13
Abstract: ABSTRACT OF THE DISCLOSURE           A process for the rapid bleaching of pulp in which chlorinated pulp is formed into a sheet on a moving foraminous surface and subjected to chlorination stage washing, a rapid first alkaline extraction, and further washing after the extraction.  The treatments involve displacement of one liquid by another.  The first alkaline extraction may be performed in two steps with the alkaline liquor used in the second of the steps comprising a mixture of a) recycled alkaline liquor displaced from the sheet by the washing water, b) washing water which has passed through the sheet, and c) fresh caustic.  The rapid alkaline extraction replaces a complete alkaline extraction stage which would include a steam mixer, a retention tower and a washer.
Patent CA-1219254-A (CA)
Inventor: DINICOLANTONIO ARTHUR R
IPC: F28F9/00
Filed: 1984-03-07
Granted: 1987-03-17
Abstract: ABSTRACT OF THE DISCLOSURE      In thermal cracking of hydrocarbons, especially steam cracking to light olefins, a transfer line heat exchanger unit is provided in which cracked gas flows from a furnace into heat exchange tubes, which comprises a distributor having an inlet for said gas and two or three diverging branches forming with said distributor a wye or tri-piece for passage of gas, each branch having along its length a substantially uniform cross-sectional area and being in  fluid flow communication with a respective cooling tube.  Unfired residence time and pressure drop are reduced, thereby improving selectivity to ethylene.
Patent CA-1221596-A (CA)
Title: Surgical needle
Inventor: EVANS DAVID
IPC: A61B17/34
Filed: 1984-03-09
Granted: 1987-05-12
Abstract: ABSTRACT OF THE DISCLOSURE          The invention provides a catheter placement apparatus for use in inserting a catheter to a preferred depth, the device comprising a surgical needle with a longitudinal window through which a catheter inserted into the needle can be viewed, and a catheter having a coloured patch of the same length as the window and a series of spaced, visually distinct markings, proximal to the patch.  The position of the catheter can be accurately located by aligning the coloured patch with the window and then inserting the catheter until at least one mark appears in the window, recording the distance of a mark from the surface of the skin and using this recorded distance to relocate the catheter, if necessary.
Patent CA-1207938-A (CA)
Inventor: TANIGUCHI ISOJI
IPC: C08G79/10
Filed: 1984-03-28
Granted: 1986-07-15
Abstract: ABSTRACT OF THE DISCLOSURE      A process for producing a high molecular weight organo-aluminum polymer by using an organoaluminum compound, water and an organic acid.     The organoaluminum polymer obtained herein is suitable for preparing fibers.
Patent CA-1223675-A (CA)
Inventor: JANSSEN KLAUS
IPC: G01V5/04
Filed: 1984-04-10
Granted: 1987-06-30
Abstract: -ABSTRACT-The invention concerns a probe for insertion into drill holes for the purpose of locating mineral ore deposits.  A radioactive source of irradiation and a detector for determining the fluorescent irradiation stimulated by the radioactive irradiation in the area of the drill hole, which detector is positioned opposite the source of irradiation, and is protected by a screen, are concentrically arranged within a cylindrical housing.          The detector has a reception surface standing vertically to the axis of the probe; this detector is turned to the source of irradiation.  Through this arrangement of the reception surface, it can further advance to the part of the wall of the drill hole, which part, essentially ring-shaped, surrounds the source of irradiation, so that more fluorescent irradiation is collected from this ring-shaped area.  It is thereby avoided that irradiation from areas of the drill hole wall lying in an axial direction on the further side of the reception surface is likewise collected, and that, in this way, the decomposition in the drill hole alignment, and the findings about the mineral deposits, are injured.  The probe can be used in drill holes of small diameter.
Patent CA-1225229-A (CA)
Inventor: TAKAYAMA SHINJI
IPC: H01J27/02
Filed: 1984-04-16
Granted: 1987-08-11
Abstract: Abstract:     Ni-based alloys containing elemental ions to be drawn out, such as B, P, Si, As, or C, are used as a liquid metal ion source.  The alloys have a composition represented by the general formula:       NiaXb where X is at least one element selected from the group consisting of B, P, Si, As and C, and a and b satisfy the relationships, 30 ? a ? 68 and b = 100 - a. Part of the Ni may be substituted by Cu, Ru, Rh, Pd, Ag, Au or Pt.  The result are alloys that have improved performance as ion sources in respect of stability and longevity.
Patent CA-1215422-A (CA)
Inventor: SAY DONALD L
IPC: H01J29/50
Filed: 1984-04-19
Granted: 1986-12-16
Abstract: ABSTRACT:         "In-line electron gun structure for a colour cathode ray tube".         The effective aperture sizes of thefinal focusing and accelerating electrodes of an in-line electron gun structure for colour cathode ray tubes are increased by elongating the apertures, expanding the outer edges of the side apertures, and surrounding the apertures with a peripheral raised rim which balances the asymmetry intro-duced into the apertures by enlargement.  Partitions between] the aperture may be radiused so their center height is lower than the height at the edges.  The raised rim of the final accelerating electrode is generally higher than the raised rim of the focusing electrode.
Patent CA-1202954-A (CA)
Inventor: SAXMAN WILLIAM C
IPC: F16C33/76
Filed: 1984-05-23
Granted: 1986-04-08
Abstract: COMPRESSIBLE PRESSURE COMPENSATOR WITHIN CLOSED  LUBRICANT VOLUME OF AN EARTH BORING APPARATUS            Abstract of the Disclosure A compressible pressure compensating member is disposed within a sealed lubricant volume enclosing a bearing and seal system of an earth boring apparatus. Lubricant is maintained within the volume by metal face seals so that both the bearing and the seal structure are lubricated thereby.  As the lubricant expands, due to thermal expansion under use, the increased pressure is accommodated by compression of the compressible member so that no lubricant is expelled through the seals.  When the lubricant cools and contracts, the compensator expands to maintain the lubricant volume at the initially filled level.
Patent CA-1253042-A (CA)
Inventor: ANTON ALAIN
IPC: H01B3/40
Filed: 1984-08-02
Granted: 1989-04-25
Abstract: Insulation process by impregnation of electric leads using isocyanate and oxazolidone cycle resins in which a glass cloth and porous mica paper tape is wound around the leads, the tape is impregnated with a quaternary ammonium salt, catalyzing condensation of isocyanate and epoxy derivatives in isocyanurate and oxazolidone cycles and with a varnish comprising a liquid epoxy resin and an isocyanate derivative, then the impregnated tape undergoes a heat treatment for polymerization of the varnish. As quaternary ammonium salt, is used a benzyltrialkylammonium halide with alkyl chain containing at most 3 carbon atoms, the tape is first impregnated with benzyltrialkylammonium halide and liquid epoxy resin, it is dried at a temperature equal to 135 DEG  C. at maximum and then it is impregnated with isocyanate derivative based varnish before undergoing the polymerizing heat treatment.
Patent CA-1230752-A (CA)
Inventor: TYCKO DANIEL H
IPC: G01N33/49
Filed: 1984-08-28
Granted: 1987-12-29
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention relates to apparatus and method for determining diagnostically significant red blood cell param-eters, i.e., hemoglobin concentration (HC) and volume (V), in a whole blood sample on a cell-by-cell basis by automated tech-niques.  While finding particular application in the measure-ment of the HC and V of individual red blood cells, it will be appreciated that the present invention finds broad application in the measurement of the volume, or equivalently the diameter in the case of spherical particles, and index refraction index; or equivalently concentration of contents or density, of par-ticles in general.
Patent CA-1195663-A (CA)
Title: deflecteur-protecteur pour appareils de prise de vues
Inventor: LAVIOLETTE ANDRE AVE DE LA RON
IPC: G03B17/56
Filed: 1984-11-01
Granted: 1985-10-22
Abstract: This apparatus deflects away from the lens of a camera dirt and the like, which may be thrown at it. The camera is enclosed within a housing with the lens protruding from the front wall of the housing. A protector plate is fixedly connected to the housing front wall by a plurality of spacers and has an opening in registry with the camera lens. A fade is rotatably mounted intermediate the circular plate and the housing front wall, with its axis of rotation eccentric with respect to the camera lens and the plate opening. The fan includes a plurality of spaced-apart blades movable across the camera lens and spacedly in front of it to deflect away from the lens any dirt particles which might enter the plate opening. The speed of the fan is such that the fan blades will not impair the quality of the image captured by the lens.
Patent CA-1257562-A (CA)
Inventor: BOULTON THOMAS W
IPC: C25B1/46
Filed: 1984-11-14
Granted: 1989-07-18
Abstract: ABSTRACT     PROCESS FOR THE ELECTROLYSIS OF AQUEOUS ALKALI             METAL CHLORIDE SOLUTION        A process for electrolysis of an electrolyte, e.g. aqueous alkali metal chloride solution in an electrolytic cell comprising a plurality of anodes and cathodes and separators positioned between adjacent anodes and cathodes to form in the cell a plurality of anode compartments and cathode compartment, the process comprising charging the electrolyte to the anode compartments, electrolysing the electrolyte, and removing the products of electrolysis from the anode and cathode compartments, the anodes and cathodes comprising an electroconducting electrocatalytically-active portion affixed to a frame member of an electrically non-conducting plastics material, and the frame members being bonded directly or indirectly to each other. Also an electrolytic cell for use in the process.
Patent CA-1227066-A (CA)
Inventor: HAMMERTON DENIS
IPC: G01N7/10
Filed: 1984-12-03
Granted: 1987-09-22
Abstract: ABSTRACT OF THE DISCLOSURE           Relatively compact apparatus for rapidly and continuously measuring the percentage of dissolved gas in a liquid.  In one embodiment thereof, the apparatus includes a gas permeable tube or membrane closed at one end having its other end connected to a pressure sensor. The gas permeable tube is mounted on the apparatus housing such that it can be immersed in the liquid to be measured.  During the measurement process, if the liquid contains less dissolved gas than the equilibrium quantity at atmospheric pressure, it will absorb gas from within the gas permeable tube thereby changing the internal tube-gas pressure.  The percentage of dissolved gas is related to the extent of gas absorption by the liquid and the resulting internal tube-gas pressure after gas absorption is substantially complete.  Rapid measurement of the percentage of dissolved gas is achieved by alter-ing the combined internal volume of the gas permeable tube and the pressure sensor to produce an optimum minimum internal volume within the combined internal volumes.  In another embodiment, a portion of the gas permeable tube is also exposed to atmospheric pressure. Vapor from the liquid being tested passing through the tube that would otherwise condense within same subse-quently passes through that portion of the tube exposed to atmospheric pressure to thereby preclude such conden-sation and thereby avoid dissolved gas measurement errors that might otherwise be produced by such condensation.
Patent CA-1243872-A (CA)
Inventor: BUCHANAN ROBERT D
IPC: D03D15/00
Filed: 1984-12-14
Granted: 1988-11-01
Abstract: ABSTRACT OF THE DISCLOSURE A papermakers' felt of the batt-on-mesh type wherein the mesh layer is a fabric formed from machine direction yarns in combination with cross-machine direction yarns.  The cross-machine direction yarns are multifilament yarns wth a polyurethane coating thereon.
Patent CA-1242009-A (CA)
Inventor: KIRMA SAFA
IPC: H01R13/58
Filed: 1985-01-23
Granted: 1988-09-13
Abstract: TERMINAL CASE FOR PLUG CONNECTORS     ABSTRACT OF THE DISCLOSURE     A  terminal  case  for  straight  or  angled  off  cable configuration as it extends from a plug connector, particularly for use in aircraft, is provided to have an integral or separate threaded ring and a transition piece of open cross section having sector-like contour,  the sector angle decreases away from  the ring towards a cable catch.  The purpose thereof is to increase the strength of the configuration so that even if the parts are made of synthetic, strength values become comparable with known terminal cases made of metal.