baber/WOPTO huggingface dataset:
Patent CA-1226971-A (CA)
Inventor: KEITH HARVEY D
IPC: H01G7/02
Filed: 1985-03-19
Granted: 1987-09-15
Abstract: METHOD FOR PRODUCING ELECTRET-CONTAINING DEVICES            Abstract A new method for fabricating electret-containing devices is disclosed.  In fabricating electrets a voltage is applied across an electrically polarizable body.  Large-scale breakdown effects in the body are avoided by reducing the voltage across at least a portion of the body undergoing polarization in response to a current indicating the onset of a breakdown in the body.  Also, polarization uniformity is enhanced and processing time is reduced relative to another conventional process.
Patent CA-1243172-A (CA)
Inventor: WALTER KARL
IPC: B27N3/08
Filed: 1985-04-12
Granted: 1988-10-18
Abstract: ABSTRACT OF THE DISCLOSURE          Our steam distributing apparatus for steam pressing of wood particle mats comprises an upper press plate, a lower press plate, a plurality of steam distribution ducts in each press plate as well as a plurality of steam outlet holes connecting each steam distribution duct to the outer surface of the press plate adjacent the wood particle mat to be pressed, where advantageously the steam outlet holes have a diameter from one to several millimeters and are distributed uniformly over the press plate outer surface in a grid having a grid size with from one to several centimeters between adjacent steam outlet holes.  Between the steam output holes of each of the press plates and the wood particle mat a porous screen comprising a wire mesh is placed, whose mesh size is smaller then the diameter of the steam output holes by a factor of at least 0.50.  The porous screen has a peripheral edge region engageable with the wood particle mat in the pressing process, whose mesh is felled with rubber and/or plastic and/or metal.         The porous screen may be constructed from corrosion resistant steel wires as a woven wire net or a woven web with warp wires perpendicular to weft wires.
Patent CA-1217488-A (CA)
Inventor: SCHURTER ROLF
IPC: C07D521/00
Filed: 1985-04-25
Granted: 1987-02-03
Abstract: Novel sulfonylureas Abstract of the Diaclosure N-(2-Heterocyclylphenylsulfonyl)-N'-pyrimidinylureas and N-(2-heterocyclylphenylsulfonyl)-N'-triazinylureas of the general formula I       and the salts thereof with amines, alkali metal basea or alkaline earth metal bases or with quaternary ammonium bases have good pre-and postemargence selective herbicidal and growth regulating properties.            In this formula A  is a substituted furyl, thienyl or pyrrole radical, E  ia nitrogen or the methine group -CH=, Z  is oxygen or sulfur, R1 is customary phenyl substituent, R2 is hydrogen, lower alkyl or lower alkoxy, R3 and R4 are each independently hydrogen, lower alkyl, lower alkoxy, lower alkylthio, cycloalkyl, halogan, haloalkyl, haloalkoxy, haloalkylthio, alkoxyslkyl, dialkoxyalkyl, amino, diethylamino.
Patent CA-1229748-A (CA)
Inventor: WRIGHT KENTON B
IPC: G01N25/00
Filed: 1985-05-08
Granted: 1987-12-01
Abstract: Abstract of the Disclosure A method of determining the penetration of an isotherm into a mass, including the steps of distributing material in the mass, the material having the ability to fix a record of an isotherm, cycling the temperature of the mass, and checking the material for the location of the isotherm relative to the mass.
Patent CA-1238221-A (CA)
Inventor: WILDEY ALLAN J
IPC: D21B1/14
Filed: 1985-05-09
Granted: 1988-06-21
Abstract: ABSTRACT OF THE DISCLOSURE A centrifugal grinder with an internal grinding surface and a rotor turning within that surface includes a passage for inserting material axially into the rotor and a pocket to allow the material to contact the internal grinding surface.  A spray is provided on the rotor at a location trailing the pocket, to spray liquid against the internal surface and make a slurry with ground material.  An element of air-foil shape is mounted on the rotor at a location trailing the spray, the air-foil having a rounded contacting portion juxtaposed against the internal grinding surface, and have the effect of lifting the slurry away from the surface.  A scoop trails the foil and has a leading edge juxtaposed against the internal grinding surface, defining a pocket for collecting the scooped-up slurry. A compartment is located axially beyond the grinding surface and a passage allows the scooped up slurry to pass from the pocket of the scoop to the compartment.
Patent CA-1237750-A (CA)
Inventor: HOLZINGER CHARLES E
IPC: F16D59/02
Filed: 1985-05-31
Granted: 1988-06-07
Abstract: Abstract of the Disclosure Brake Release Mechanism for Vehicle Towing Spring-applied, pressure-released brakes are useful, for example, in construction vehicles or other vehicles that require an automatic braking in the event of an engine failure.  In order to tow the vehicle for service, the brakes must be released.  Most brake release systems require an alternate pump and associated valves on each vehicle with the fluid from the alternate pump being controlled by the brake valve on the vehicle.  The alternate pump on each vehicle add cost to the vehicle and the spool of the brake valve is a known path for fluid leakage thus requiring an alternate pump of a larger capacity than is actually needed.  The present brake release mechanism provides an isolating mechanism that is effective to isolate a work port of a brake valve from a valving element in a housing.  The isolating mechanism is adapted to connect with an alternate source of pressurized fluid and adapted to direct the pressurized fluid to a brake for release thereof.  The isolating mechanism and the alternate source of pressurized fluid are adaptable to several vehicles thus eliminating the need of the alternate pump and associated valves on each vehicle. Furthermore, the alternate source is smaller in capacity since the leakage in the brake valve during towing is eliminated.
Patent CA-1249337-A (CA)
Inventor: NIMMERSJOE GUNNAR
IPC: H02H7/26
Filed: 1985-06-14
Granted: 1989-01-24
Abstract: ABSTRACT OF THE DISCLOSURE    A method and a device for distance protection and location of a fault point on a transmission line based on voltage waves emitted from a measuring point towards a fault point and corresponding waves reflected from a fault point, which are included in a travelling wave model of a transmission line.  At certain regular intervals, a measurement is effected of the instantaneous values of the current and the voltage at an end point of the transmission line, for example at a station.  Based on these measured values, and with the aid of the travelling wave model, it is possible to calculate the voltage at a number of control points along the transmission line. If the line is energized and the calculated control voltages at two control points have different signs during a time longer than a time corresponding to normal phase difference between the two voltages, there is a fault on the line between these points.  By interpolation, it is possible, based on the distance between the points in question and the calculated control voltages, to precisely locate the fault point in the case of a low resistance fault.
Patent CA-1242045-A (CA)
Title: Polyamides, processes for producing them, and their  use
Inventor: CIBA-GEIGY AG
IPC: C08G69/26
Filed: 1985-06-25
Granted: 1988-09-13
Abstract: Polyamides, processes for producing them  and their use Abstract Polyamides formed from 80 to 100 mol %, relative to the polyamide, of at least one structural element of the formula I                            (I) and 20 to 0 mol % of at least one structural element of the formulae II and/or IIa (II)   (IIa), wherein R1 and R2 are lower alkyl, or together are alkylene, R3 is naphthylene or anthracenylene or the corresponding cycloaliphatic ring systems, R4 is alkylene, R5 is alkylene or an aromatic radical, and R6 is alkylene, cycloalkylene or a divalent araliphatic radical.  The polyamides have melting points which render possible processing by thermoplastic shaping processes.
Patent CA-1241187-A (CA)
Inventor: NIGRINI ANDREW
IPC: E21B43/24
Filed: 1985-09-13
Granted: 1988-08-30
Abstract: ABSTRACT OF THE DISCLOSURE         A method of inhibiting the dissolution of the gravel pack and/or the erosion of silicate- or carbonate-containing formations subjected to steam-enhanced oil recovery processes.  The method includes the addition of a compound, such as salt, having a volatile cationic compo-nent and an inert anionic component to the steam feed water to reduce the pH of the residual liquid phase and increase the pH of the vapor phase of the injected steam.          Preferred salts are ammonium salts, such as ammonium sulfate and ammonium chloride.
Patent CA-1243770-A (CA)
Inventor: IINUMA KAZUMOTO
IPC: G06T9/00
Filed: 1985-11-07
Granted: 1988-10-25
Abstract: Abstract of the Disclosure A high efficiency coding system has an elementary circuit configured as a predictive coding circuit comprising an A/D converter for converting an input analog picture signal into a digital picture signal, a subtractor to make the difference between the digital picture signal and a prediction signal to produce a prediction error signal, an adder to calculate the sum of the prediction signal and the prediction error signal, and a prediction circuit responsive to the output of the adder to produce the prediction signal.  The predictive coding circuit is further provided with a control pulse generator responsive to the input analog picture signal to produce a sampling pulse for the A/D converter and a select signal, a first selector responsive to the select signal to select either the prediction error signal or a fixed value, and a second selector responsive to the select signal to select either the prediction signal or a fixed value.  Thus, this system can facilitate the processing for fractional pixels produced as a result of defining the picture signal by the two-dimensional block.
Patent CA-1243692-A (CA)
Inventor: ALFORD NEIL M
IPC: C04B35/64
Filed: 1985-11-20
Granted: 1988-10-25
Abstract: COMPOSITION COMPRISING CERAMIC PARTICLES    A homogeneous composition comprising at least one particulate ceramic material, and a liquid medium, in which the composition comprises at least 50% by volume of particulate ceramic material, in which the particulate ceramic material and liquid medium are selected such that a test composition has a friction coefficient of less than 0.2, and in which the particulate ceramic material has a mean aspect ratio of less than 1.70, a shaped article produced from the composition, a shaped article from which the liquid medium has been removed, and a product in which the particles of ceramic material have been sintered.
Patent CA-1260896-A (CA)
Inventor: REID PHILIP L
IPC: B29C63/02
Filed: 1985-12-02
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE                 There is disclosed a packaging process, and also an apparatus for performing the process and a product produced in the process, in which heat shrinking or heat sealing is not required.  An article is contacted with a film material about a primary surface thereof and the film is retained circumferentially while being moved about a secondary surface of the article until the film is stretched to the point of severance thus causing the film to cling tightly to the secondary surface of the article.
Patent CA-1256245-A (CA)
Inventor: DAVISON SOL
IPC: C08F8/50
Filed: 1985-12-18
Granted: 1989-06-20
Abstract: A B S T R A C T    CONTROLLED DEGRADATION OR CRACKING OF ALPHA-OLEFIN POLYMERS     An improved process for the controlled reduction of average molecular weight and alteration of molecular weight distribution of C3-C8 alpha-monoolefin homopolymers or copolymers comprises adding a peroxide continuously at a programmed cyclic rate to the polymer or copolymer and heating the mixture in a melt extruder. m e rate of peroxide addition is varied at a frequency with a period longer than the decomposition time of the peroxide but shorter than the passage time of the mixture through the extruder, so as to achieve combinations of melt flow and molecular weight distribution for the polymer not possible with prior art steady rates of addition.          CWgH04
Patent CA-1235577-A (CA)
Inventor: COBURN ARTHUR E
IPC: C22B7/00
Filed: 1986-01-15
Granted: 1988-04-26
Abstract: TITLE:  TREATMENT OF RESIDUES            ABSTRACT OF THE DISCLOSURE           This invention relates to a hydrometallurgical process for recovering the values contained in metallurgical residues, such as anode mud.  In the first step of the process the residue is leached with an alkali carbonate bearing cyanide solution in the presence of an oxidizer, with agitation.          The resulting pregnant solution is separated from the barren solids, and subsequently treated for the recovery of the value metals.  In the preferred embodiment the recovery is conducted in an electrolytic cell, but known ion exchange processes are equally suitable.  The reagent solution is then passed through an ion exchange system to remove trace metal residuals, impurities and degradation products.  Next the original chemical composition of the now barren extractant is restored by chemical replenishment or addition, and the regenerated reagent is recirculated for contact with fresh residue and oxidizer.          The process times of the present invention are quite rapid and due to the closed  loop concept little or no effluents are involved.  Moreover, the cyanide requirements are kept to a minimum due both to the closed loop and to the fact that the cyanide is largely recovered from the metallic complex during the electrolytic step.
Patent CA-1262736-A (CA)
Inventor: KEIL JOSEPH W
IPC: C08G77/14
Filed: 1986-01-27
Granted: 1989-11-07
Abstract: CARBOXYLHYDROCARBYL-SUBSTITUTED SILICON COMPOUNDS     ABSTRACT     Silicon compounds containing one or more silicon-bonded, carboxyl-containing radicals are produced by a process which involves silylation of the carboxyl radicals of an unsaturated acid, hydrosilylation of the unsaturated portion of the unsaturated acid and hydrolysis of the resulting product.  A preferred unsaturated acid is undecylenic acid.  Carboxyldecyl-substituted silicon compounds of this invention have surprising substantivity to a metal substrate.
Patent CA-1263952-A (CA)
Inventor: BEAVERS ALLAN E
IPC: F24F7/06
Filed: 1986-03-11
Granted: 1989-12-19
Abstract: COMBINATION PURGING AND VENTILATING BLOWER               ABSTRACT OF THE DISCLOSURE This invention relates to a blower which is specifically designed not only to purge a workplace of foul air preparatory to it being entered by personnel but also to provide these people with adequate ventilation once they are inside, such a blower being characterized by a hollow generally cylindrically-shaped open-ended outer housing having an intake end at the rear thereof and a discharge end in front, a collapsible purging hose with its rear end attached inside the outer housing adjacent the intake end of the latter and extendable out through its discharge end into a workplace to be purged, a generally frustoconical inner housing having its larger diameter intake end spaced to the rear of the intake end of the outside housing while at the same time cooperating therewith when positioned inside thereof to define one or more air-aspirating ports therebetween as well as an annulus for the storage of the purging hose in collapsed condition, a blower attached to deliver air to the intake end of the inner housing and cooperate therewith when the purging hose is extended to aspirate air into the latter through the air-aspirating ports as well as deliver air thereto, and a ventilating hose attachable to the relatively smaller discharge end of the inner housing for ventilating the workplace previously purged when the purging hose is stowed in collapsed condition.
Patent CA-1251027-A (CA)
Inventor: DILLARD HARVEY G
IPC: B23P19/04
Filed: 1986-03-17
Granted: 1989-03-14
Abstract: Abstract of the Disclosure Apparatus and Method of Packaging An Engine Cylinder Assembly Prepackaging the various components of an engine cylinder assembly as an exchange or overhaul kit is useful in servicing or overhauling a single cylinder of a multiple cylinder engine.  The heretofore known devices for holding the components of the engine cylinder assembly together were primarily used with small engines where the weight of the components was sufficiently low so as to not cause any handling difficulties.  The subject apparatus includes a pair of brackets which positively grippingly engage the flange of the cylinder liner and a lifting element which is releasably attached to the piston with bolts threaded into threaded holes in the piston such that a portion of the brackets is sandwiched between the lifting element and the piston.  The apparatus is positively engaged with the components of the engine cylinder assembly and positively maintains the components in fixed relationship with one another.  Thus, the apparatus is particularly useful in packaging engine cylinder assemblies for large engines and facilitates the use of a hoist for handling the engine cylinder assemblies with little chance of slippage between the piston and the cylinder liner.
Patent CA-1261396-A (CA)
Title: Mobile radio unit in cellular wide range mobile communication system
Inventor: ARAI KANJI
IPC: H04W8/04
Filed: 1986-03-18
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE         A mobile radio unit assures a wide area communication system having a function equal to a tracking exchange function and profitably employing an equipment of the existing exchange as it is.  The mobile radio unit stores a secret number to assure a call restriction service.
Patent CA-1272018-A (CA)
Inventor: SMITH RICHARD D
IPC: D06M23/06
Filed: 1986-07-10
Granted: 1990-07-31
Abstract: TREATMENT OF CELULOSIC MATERIALS          ABSTRACT            A treatment system for cellulosic materials is provided which is particularly adapted for the manual treatment of single pages of books, as well as documents, engineering drawings, maps, and works of art on paper.  The system includes a deacidification, self-pressurized solution comprising a deacidification agent, a lower alcohol solvent for the agent, a diluent, and a propellant; delivery apparatus for shipping, storing, and spraying the solution; and a novel cleaning solution for use in conjunction with the deacidification solution and apparatus.
Patent CA-1268102-A (CA)
Inventor: RAUCH GARY C
IPC: H01F1/153
Filed: 1986-10-07
Granted: 1990-04-24
Abstract: ABSTRACT OF THE DISCLOSURE A method of stress-relief annealing a magnetic core constructed of magnetic, metallic strip material, with at least a portion of the strip material being amorphous, wherein the strip material has major plane surfaces which define first exposed surfaces of the magnetic core,  and lateral  edges  which  collectively  define  second  exposed surfaces of the magnetic core.  The method includes the step of thermally insulating the first exposed surfaces of the magnetic core,  and the step of heating the magnetic core via the second exposed surfaces.
Patent CA-1255973-A (CA)
Inventor: SADHIR RAJENDER K
IPC: D06M101/00
Filed: 1986-11-27
Granted: 1989-06-20
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed is a process for forming a conductive coating of polyacetylene or substituted polyacetylene on fibers.  The  fibers  are  immersed into a  solution  of  a catalyst for the polymerization of acetylene or substituted acetylene.  The fiber  are removed from the solution and acetylene  or  substituted acetylene gas  is permitted to permeate the fibers, polymerizing to form a polyacetylene coating on the fibers.  The coated fibers are then doped to make the polyacetylene coating conductive.  Also disclosed are conductive polyacetylene coated fibers and a laminate containing conductive polyacetylene coated fibers.
Patent CA-1273685-A (CA)
Inventor: MOUISSIE BOB
IPC: H01R12/62
Filed: 1987-01-30
Granted: 1990-09-04
Abstract: TITLE EDGE CONNECTOR WITH CLAMPING CONTACT ELEMENTS                      ABSTRACT         An edge connector is provided capable of interconnecting the conductors on a flexible conductor film and the conductors on one or more rigid substrates, such as for LCD or LED displays. The edge connector includes a plurality of clamping contact elements, each with at least three contact arms defining at least two insertion openings, one for the rigid substrates and one for flexible film. A fourth arm may be included to define a third insertion opening for a second rigid substrate.
Patent CA-1274688-A (CA)
Title: Process and composition for color stabilized  distillate fuel oils
Inventor: REID DWIGHT K
IPC: C10L1/222
Filed: 1987-04-21
Granted: 1990-10-02
Abstract: ABSTRACT           This invention relates to processes and compositions for color stabilized distillate fuel oils, such as straight-run diesel fuel, which comprises an effective color stabilizing amount of (a) triethylenetetramine and (b) N,N-diethylhydroxylamine, wherein the weight ratio of (a):(b) is at least about 1.5:3.
Patent CA-1271091-A (CA)
Inventor: MACARTHUR CHARLES E
IPC: F23M9/00
Filed: 1989-03-13
Granted: 1990-07-03
Abstract: Abstract of the Disclosure A down-draft, gravity fed, bio-mass, solid fuel burning stove or furnace comprises an upright cylindrical housing having a top cover and a fire resistant openable air-tight floor.  Fuel drops onto the center of the floor through a central feed tube where it burns in the form of a truncated connical pile.  A second tube surrounds the feed tube, defining with it an annular air intake passage for discharging an annular current of air downwardly on the burning fuel. A heat exchanger surrounds the housing and its inner wall defines with the housing a smoke pas-sage for upward escape of the hot gases of combustion. Heat from the smoke passage heats the contents of the heat exchanger.  A baffle in the smoke passage enhances heat transfer.  The central tube and cover are removable as a unit.
Patent CA-1043127-A (CA)
Inventor: CAMPBELL WALTER G
IPC: B63G8/42
Filed: 1964-03-18
Granted: 1978-11-28
Abstract: ABSTRACT OF THE DISCLOSURE:           A canister assembly which comprises a hollow housing portion having a forward open end and a rearward end, a wire arranged in the hollow portion in a configuration permitting free payout, and a contact device secured to the rearward end for electrically connecting the canister assembly to remote measuring apparatus.
Patent CH-531024-A (CH)
Title: Foams from bituminous materials and novolak resins - for heat and sound insulating panels
Inventor: FRANCK HEINZ-GERHARD DR
IPC: C08J9/04
Filed: 1970-01-27
Abstract: Simultaneous foaming and hardening of bituminous material and novolak resin mixtures of 50-5,000 (pref. 100-1,000) cps. viscosity takes place at 150-210 degrees C (pref. 170-190 degrees C) in the absence of free acid by means of gases released during hardening or by addition of poreforming agents. Fillers (talcum, C black, asbestos) and/or modifiers such as polyethylene, PVC or polystyrene may be added to foamable compositions. The rigid foams produced are pref. additionally heated at 200-300 degrees C for several hrs. Products are resistant to heat and pressure.
Patent CH-539709-A (CH)
Title: Circular loom weft insertion - weft looped by chain carried guide on helical grooved roller pair and intermediate chain carried
Inventor: RUDOLF SCHNEIDER
IPC: D03D37/00
Filed: 1972-02-11
Abstract: The chain runs over two chain wheels each on a fixed spindle which also carries a helically grooved roller driven oppositely to the chain wheel by a planet gear drive from the chain wheel. Intermediate the chain wheels, a belt moves with and carries grippers engaging the yarn loops moving axially along the rollers in their grooves. A suction device is located adjacent one roller, and a yarn cutter near the gripper belt cuts the end loop, the end being sucked into and tensioned by the suction device. The gripper releases the held end of the yarn loop to a weft insertion device.