baber/WOPTO huggingface dataset:
Patent CA-1112373-A (CA)
Inventor: SLATTER JOHN A G
IPC: H01L29/744
Filed: 1978-12-14
Granted: 1981-11-10
Abstract: ABSTRACT:           A gate turn off PIN diode has its anode and cathode adjacent the same major surface of the device body and separated by a recess which extends into the body towards the gate region.  Turn-off is effected by the spread of a depletion layer from the reverse-biased gate junction to the recess.          Figure 3 is suitable for publication.
Patent CA-1125895-A (CA)
Title: Laser gyro mode locking reduction scheme
Inventor: SANDERS VIRGIL E
IPC: H01S3/083
Filed: 1979-01-19
Granted: 1982-06-15
Abstract: ABSTRACT         Weaker secondary laser modes operating slightly above threshold couple  with stronger primary counterpropagating laser modes in a ring laser gyroscope and produce a dithering effect which reduces or eliminates lock-in between the primary modes.          In one embodiment, cavity length control circuitry is adjusted to detune the cavity length to allow two secondary opposing modes to be generated within the laser gain medium in the cavity while two primary counterpropagating modes operate well above threshold.          Another embodiment of the invention includes the use of an external laser beam source for generating secondary waves which are introduced into the ring laser path through a partially transmitting mirror which forms one of the corners of the ring laser closed loop path.  In still another embodiment, part of one of the primary waves leaves the ring laser path through a partially reflective mirror and is acted upon by an oscillating mirror which doppler shifts the frequency.  This doppler shifted mode is then reintroduced into the ring laser path to couple with the primary mode, which causes an oscillation which diminishes lock-in frequency.  In all embodiments, the magnitude and frequency of the secondary mode or modes are controlled to optimize lock-in reduction.
Patent CA-1111177-A (CA)
Inventor: LEHR MARVIN H
IPC: C08L7/00
Filed: 1979-02-13
Granted: 1981-10-20
Abstract: ABSTRACT OF THE DISCLOSURE          Chlorinated polyvinyl chloride resin (CPCV) is blended with a block copolymer of styrene and a diene (SD) or of styrene-diene-styrene (SDS), which block copolymer is referred to as a "pro-modifier" because, by itself, it performs a dual function of processing aid and impact modi-fier in CPVC.  For tailoring specific desirable impact properties and physical characteristics into a CPVC resin composition, it may be desirable to use a conventional impact modifier in combination with the block copolymer. When the block copolymer is used, such use being referred to as that of a "co-modifier", the block copolymer and con-ventional impact modifier provide a CPVC composition with unexpectedly enhanced impact strength.  The block copolymer consists essentially of a vinyl aromatic compound and a conjugated diene such as styrene-diene (SD) diblock co-polymer, or a styrene-diene-styrene (SDS) polyblock copolymer having a linear or radial block structure or mixtures of linear and radial block copolymers.  When a conventional impact modifier is used, it may be any elasto-mer additive, preferably a nucleated rubbery graft copoly-mer, but a minor quantity by weight of a synthetic resinous interpolymer which contains no rubber polymer, may also be used.
Patent CA-1124945-A (CA)
Inventor: THROCKMORTON MORFORD C
IPC: C08F36/04
Filed: 1979-02-26
Granted: 1982-06-01
Abstract: Abstract There is disclosed a method for copolymerizing cis-1,3-pentadiene and trans-1,3-pentadiene to prepare cis-1,4 polypentadienes.  Other conjugated diolefins, including butadiene, isoprene, 2-ethyl-1,3-butadiene and 2-methyl-1,3-pentadiene also may be copolymerized with the cis-1,3-pentadiene isomer to prepare elastomeric copolymers.  There is also disclosed a method for the copolymerization of isoprene with trans-1,3-pentadiene. There is also disclosed the preparation of very high cis 1,4 polypentadiene which comprises polymerizing cis 1,3-pentadiene.  The polymerization catalyst employed in all of these polymerizations is a ternary catalyst system comprising (a) an organometallic compound selected from the group consisting of aluminum trialkyls, magnesium dialkyls and zinc dialkyls, (b) a soluble chro-mium compound selected from the group consisting of chromium salts of organic acids containing from 2 to 20 carbon atoms, organic complex compounds of chromium con-taining tridentate ligands and .pi.-bonded organochromium compounds, and (c) a member selected from the group of dialkyl hydrogen phosphites, diaryl hydrogen phosphites and tris(2-chloro ethyl)phosphite.          There is also disclosed as a composition of matter a catalyst comprising (a) an organometallic compound selected from the group consisting of aluminum trialkyls, magnesium dialkyls and zinc dialkyls, (b) a soluble chromium compound selected from the group consisting of chromium salts of organic acids containing from 2 to 20 carbon atoms, organic complex compounds of chromium con-taining tridentate ligands and .pi.-bonded organochromium compounds, and (c) a member selected from the group of dialkyl hydrogen phosphites, diaryl hydrogen phosphites and tris(2-chloro ethyl)phosphite.
Patent CA-1114678-A (CA)
Title: Method and apparatus for cooling blocks of hot  porous material
Inventor: PIPE WILLIAM J C
IPC: A21D15/02
Filed: 1979-03-16
Granted: 1981-12-22
Abstract: ABSTRACT     Porous blocks of the type used for cooling bread and similar food products are cooled rapidly by being placed in a chamber wherein the air pressure is less than ambient, and a flow of cooling air ia induced throught the interior of the block to the chamber.  The flow of cooling air is induced by inserting an injector needle into the block.
Patent CA-1108824-A (CA)
Inventor: KARR ANDREW E
IPC: B01D11/04
Filed: 1979-03-28
Granted: 1981-09-15
Abstract: Abstract of the Disclosure A liquid extraction process using counterflowing liquid phases in a reciprocating plate extraction column in which the plates of the column are spaced with respect to one another approximately according to the equation:             wherein ? is the plate spacing, UD is the superficial velocity of the dispersed phase at flooding, UC is the superficial velo-city of the continuous phase at flooding, .DELTA.p is the density dif-ference and .sigma. is the interfacial tension.     By using the above equation the volume of column required to carry out a specific extraction is minimized.     The extraction column comprises a casing, a reciprocating shaft in the casing having perforated plates and optionally baffle plates mounted thereon in a spatial relationship with re-spect to each other calculated on the basis of the equation and includes motive means and suitable cam and driving means to reciprocate the shaft.
Patent CA-1125979-A (CA)
Inventor: KRUEGER DENNIS L
IPC: B29C48/92
Filed: 1979-04-03
Granted: 1982-06-22
Abstract: ABSTRACT         Normally transparent films which can be rendered translucent by stretching and transparent by relaxing the film are provided.  The films comprise a blend of crystallizable polymer with a compound with which the polymer is miscible at a temperature above the crystal-lization temperature of the crystallization polymer-compound blend but immiscible at a temperature below the crystallization temperature of the blend.  The films are prepared by blending the crystallizable polymer with the compound under melt conditions, casting a film of the blend and cooling to solidify the blend.
Patent CA-1126248-A (CA)
Title: Method of producing amines from alcohols,  aldehydes, ketones and mixtures thereof
Inventor: HABERMANN CLARENCE EDWARD
IPC: B01J37/03
Filed: 1979-04-05
Granted: 1982-06-22
Abstract: Abstract of the Disclosure A method of producing amines, the method comprising contacting at reactive conditions at least one alcohol, aldehyde or ketone, or a mixture thereof, with an aminating agent in the presence of a catalyst, is improved by employing as the catalyst a composition comprising cobalt, or nickel, copper and a third com-ponent selected from the group consisting of iron, zinc, zirconium and mixtures thereof.  For example, poly-propylene glycol is quantitatively aminated by con- . tacting it with ammonia at about 175°C and in the presence of a catalyst comprising (metal basis) 30 mole percent cobalt, 63 mole percent copper and about 7 mole percent iron.
Patent CA-1128664-A (CA)
Inventor: KROL THIJS
IPC: H03M13/13
Filed: 1979-04-26
Granted: 1982-07-27
Abstract: 30.11.78                   1                     PHN.9078 ABSTRACT          "Memory, incorporating error detection and correction"            A word location for a user word in a memory not only contains the bit locations for the actual data but also each time one parity bit for the parity over the entire word location, and per word location there is also one correction bit. Each time a fixed number of word locations are grouped to form a memory location for the storage of a memory word. When a word location is read by a data user, the parity bit indicates whether the word location contains none or one bit error. The occurrence of two bit errors in a single word location cannot be detected in this manner. If the user word does not contain errors, it becomes available to the data user, the correc-tion bit thereof not providing further information in these circumstances. If the user word contains an error, the other word locations of the same memory location and also the associated correction bits are read. The set of parity bits and correction bits can then correct one arbitrary bit error in the memory word. In given cases, a plurality of bit errors can be corrected. notably if they are each time situated in bit positions of the same rank within the word locations for the user words. The chance that a multiple error has exactly this configuration can be enhanced by a suitable arrangement of the bit locations in a memory  Thus, a limited amount of redundancy suffices 30.11.78                   2                    PHN.9078 in many cases. Memory words in different memory banks may have the correction bits in common.
Patent CA-1132598-A (CA)
Title: Phenylether compounds and a process for  the preparation thereof
Inventor: REITER JOZSEF
IPC: A61K31/085
Filed: 1979-04-27
Granted: 1982-09-28
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a novel process for the preparation of phenylether compounds having the general formula (I),                 (I) wherein A stands for hydroxy, acyloxy, alkylsulfonyloxy, arylsulfonyloxy, azido or amino group, or acid addition salts thereof.  These compounds are biologically active or can be applied as starting substances in the preparation of biologically active compounds.  According to the invention 2,6-dimethylphenol is reacted with propylene oxide in an alkaline medium and, if desired, the resulting compound is acylated and, if desired, the resulting ester is reacted with an alkali metal azide and, if desired, the resulting azido compound is reduced and, if desired, the resulting amino compound is converted into its acid addition salt.  The individual process steps are easy to perform, and the products are obtained in highly pure state with good yields.
Patent CA-1113589-A (CA)
Title: Method of and system for controlling  stress produced in steam turbine rotor
Inventor: HISANO KATSUKUNI
IPC: F01D21/00
Filed: 1979-04-30
Granted: 1981-12-01
Abstract: ABSTRACT OF THE DISCLOSURE          A stress controlling system for a rotor of a steam turbine determines thermal and rotational conditions of the rotor.  Thermal and centrifugal stresses produced in the rotor during operation of the steam turbine are calculated from the thermal and rotational conditions, respectively, of the rotor.  Also, brittle fracture toughness of the material of the rotor under the thermal condition determined is calculated. Operation of the steam turbine is controlled to prevent the calculated brittle fracture toughness from being exceeded by the combined stress of thermal and centrifugal stresses during operation of the steam turbine.
Patent CA-1093758-A (CA)
Title: Flush toilet system
Inventor: HAMILTON WILLIAM H
IPC: E03D3/10
Filed: 1979-06-12
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE         A water reservoir tank storing a primary body of water for release to a toilet bowl for flushing is associated with a pressure tank that stores a minor amount of water at a pressure considerably higher than that of the primary body and is discharged during flushing to join the water released from the reservoir tank and impart increased overall energy to the water in the bowl.  A predetermined time delay is introduced between start of the flushing action and dis-charge of water from the pressure tank.  The pressure tank is automatically discharged and recharged during each flushing cycle.
Patent CA-1125291-A (CA)
Inventor: EMEURY JEAN-MARIE
IPC: C07D487/04
Filed: 1979-06-22
Granted: 1982-06-08
Abstract: A B S T R A C T             The invention relates to a continuous process for the manufacture of dinitroglycolurile by nitrating glycolurile with absolute nitric acid, the nitration being carried out in at least two reactors in a cascade, a homogeneous phase being produced in the first reactor and a heterogeneous phase being produced in the second reactor.  An initial nitration ratio of between  3.5 and 9 is preferably used and a temperature of between 30 and 40°C and between 45 and 70°C is preferably caused to prevail in the first and the second reactor respectively If desired, at least one third reactor can be used, in which the reaction mixture is brought back to ambient temperature.  The product obtained is useful in the production of the secondary explosive DINGU, having improved stability in the crude form, with an excellent yield.  The reaction can be illustrated as follow:
Patent CA-1118938-A (CA)
Inventor: CHANG SING-HSIUNG
IPC: G02C7/04
Filed: 1979-07-16
Granted: 1982-02-23
Abstract: THE ABSTRACT OF INVENTION         A new composition of matter specially adapted for the production of contact lenses, artificial eyes or other prosthetic devices.  The composition has the characteristics of increased hydrophilicity, softness after hydration and oxygen permeability.  The composition is a solid copolymer of comonomers consisting essentially of about 15 to about 65% by weight of one or more of the hydrophilic amide group containing monomers and about 10 to about 75% by weight of one or more of the copolymeric organosiloxane.  Optionally, about 0.1 to about 65% by weight of at least one property modifier, a vinyl group containing monomer such as methyl methacrylate, can be employed into the copolymers.  The inven-tive material is optionally transparent, translucent or opaque depending on the type, composition and relative content of the comonomers used.  In general, the transparent composi-tion is suitable for use in making contact lenses.
Patent CA-1123832-A (CA)
Title: Urea derivatives, process for their manufacture and  their use as light protecting  agents for polymers
Inventor: WIEZER HARTMUT
IPC: C07D519/00
Filed: 1979-08-03
Granted: 1982-05-18
Abstract: Abstract of the Disclosure The amide nitrogen of 9,9-dimethyl-2-oxa-4-oxo-3,8-diazaspiro-(4,5)-decane reacts with isocyanates or diiso-cyanates to give novel urea derivatives which can be used as light stabilizers for plastic materials.
Patent CA-1127766-A (CA)
Inventor: ARITA TAKEMI
IPC: H04Q11/04
Filed: 1979-10-03
Granted: 1982-07-13
Abstract: Abstract of the Disclosure A time division switching circuit with time slot interchange uses an input shift register to convert a frame of binary coded input data of time division multiplex type from an in-coming line into a parallel bit output.  The parallel bit output undergoes gate control in a gate matrix and its bit array is statically changed to a given bit array.  On/off control of the gates at the cross points of the gate matrix is conducted under control of parallel bit outputs of a plurality of control Shift registers which stores predeter-mined contents.  The bit data thus re-arranged are supplied to an output shift register, and are transmitted to an out-going line as a frame of binary coded output data of time division multiplex type.
Patent CA-1122499-A (CA)
Inventor: BUTCHER LAWRENCE D
IPC: A01D45/16
Filed: 1979-10-12
Granted: 1982-04-27
Abstract: LAWRENCE D. BUTCHER           LEAF STRIPPER FOR TOBACCO STALKS AND THE LIKE                 ABSTRACT OF THE DISCLOSURE        A leaf stripper for tobacco stalks and the like in-cluding cooperating leaf stripping means, means for moving the stripping means to form a nip, and stalk supporting an infeeding means mounted adjacent the stripping means in the area of the nip with the infeed axes parallel to the axes of the nip, and the method for stripping the leaves from the stalk.
Patent CA-1120759-A (CA)
Title: Peat paper and a method for its  manufacture
Inventor: FJELDSA OYVIND
IPC: A01G1/00
Filed: 1979-10-22
Granted: 1982-03-30
Abstract: ABSTRACT OF THE DISCLOSURE         A peat paper for use in connection with planting, sowing or weed-control.  The paper contains peat fibres, cellulose fibres and a bonding agent.  The cellulose fibres form a sheet or web supporting the peat fibres and the peat fibres are loose, non-compressed fibres.  The peat fibres are joined to the cellulose fibres and the dry formation process and by means of the bonding agent to form paper-like sheets or webs.  These sheets or webs have a weight in the range of 100 to 350 grams per centimeter.  The resulting paper is soft and, owing to its method of production, controlled amounts of additives, such as fertilizers, seeds, hormones and similar additives may be incorporated into the paper.
Patent CA-1148029-A (CA)
Inventor: MOHACSI SANDOR
IPC: B61F5/10
Filed: 1979-11-15
Granted: 1983-06-14
Abstract: ABSTRACT OF THE DISCLOSURE        A bolsterless bogie with air suspension for rail vehicles where an underframe is connected directly by means of a centre pivot and wear-free link without the intermediary of a bolster to the bogie frame is disclosed. The connection is effected by means of at least one link which is disposed hori-zontally and pointing in the direction of travel preferably at the level of the axle boxes to the centre pivot and the bogie frame, and the pins of the connection are supported in wear-free rubber joints and are disposed horizontally and transversely to the direction of travel. Rubber buffers are provided to limit the transverse motion between the centre pivot and the surrounding bogie frame with vertical forces being transmitted by means of air-spring bellows arranged in the transverse centre plane between the underframe and the bogie side still. Stops effective in the travel direction are provided between the centre pivot and the bogie frame.
Patent CA-1126395-A (CA)
Inventor: ISONO KATSUO
IPC: H04N9/24
Filed: 1979-11-21
Granted: 1982-06-22
Abstract: BEAM INDEX COLOR TELEVISION RECEIVER APPARATUS                ABSTRACT OF THE DISCLOSURE     In a beam index color television receiver of the type having a cathode ray tube which is provided with beam-excitable color elements disposed on a display screen of the cathode ray tube and index elements which are scanned by an electron beam as the beam scans the display screen, an apparatus for controlling the beam includes an index signal generator for generating a periodic index signal as the index elements are scanned by the beam, color gates which sequentially gate respective color con-trol signals individually to modulate the electron beam as the beam scans the color elements, a gating signal circuit which generates sequential gating signals at a frequency synchronized with the frequency of the periodic index signal and which sup-plies the gating signals in sequence to the color gates to con-trol the latter so as to gate the respective color control signals, and a phase-controlling circuit for controlling the phase of the gate pulse singals in response to the highest-level one of the color control signals.                       -i-
Patent CA-1146746-A (CA)
Inventor: CORBETT ROBERT L JR
IPC: C21D9/673
Filed: 1979-12-05
Granted: 1983-05-24
Abstract: IMPROVEMENTS IN COOLING APPARATUS         FOR DIFFUSERS                    ABSTRACT OF THE DISCLOSURE           A diffuser adapted for transmitting thermal energy by conduction across metallic members and by convection of a heat-treating gas in an annealing furnace is comprised of a base, a diffuser member having a plurality of radial gas pass-ages, and an in-line cooling member disposed longitudinally within each of the radial passages; which cooling member includes a cooling fluid inlet, at least one radial cooling fluid leg having a longitudinal axis extending substantially in the direction of the gas flow through the radial passage, and a cooling fluid outlet.
Patent CA-1128061-A (CA)
Inventor: BOROSCHEWSKI GERHARD
IPC: C07C271/06
Filed: 1980-01-14
Granted: 1982-07-20
Abstract: ABSTRACT OF THE DISCLOSURE           Novel diurethanes of the general formula I     (I)   (wherein R1 represents C1-C4-alkyl or phenylethyl, R2 represents C1- C4-alkyl, halogeno-C1-C4-alkyl, C2-C4-alkenyl or -alkynyl or halogeno-C2-C4-alkenyl or -alkynyl, Y represents H or F and X represents O or S) and their manufacture.  The novel compounds of the general formula I have a herbicidal action and accordingly may be made up with suitable carriers into herbicidal preparations and may be used for protecting living plants and crop areas against weeds.
Patent CA-1167645-A (CA)
Inventor: LAFLAMME DANIEL
IPC: A01G9/00
Filed: 1980-01-23
Granted: 1984-05-22
Abstract: ABSTRACT OF THE DISCLOSURE           There is provided a novel rotating plant holder comprising a fixed base member having associated therewith at least one solar energy cell, a motor energized by said solar cell, and an upper platform member rotatably attached to said base member and driven to rotate by said motor.
Patent CA-1121558-A (CA)
Inventor: WASHECHECK PAUL H
IPC: C08K9/00
Filed: 1980-02-15
Granted: 1982-04-13
Abstract: SINGLE PACKAGE ADDITIVE FOR THERMOPLASTIC FORMULATION                Abstract of the Disclosure A friable composition single additive package for thermoplastic extrusions is provided in the instant invention.  The friable composition can contain paraffin waxes, calcium stearate, various pigments, fillers, lubricants, and stabilizers.
Patent CA-1129623-A (CA)
Inventor: WIESINGER HORST
IPC: B22D11/128
Filed: 1980-02-18
Granted: 1982-08-17
Abstract: ABSTRACT OF THE DISCLOSURE:      A supporting and guiding stand for a bow-type con-tinuous casting plant comprises exchangeable supporting seg-ments supported on a carrying frame, in which segments the rollers of the oppositely arranged inner and outer guideways are mounted at a distance from one another. In the center of the circular arc along which the supporting segments are arranged a pivoting lever including means for seizing and extracting individual supporting segments is mounted, whose length is shorter than the radial distance from the center to the supporting segments. For removing a desired support-ing segment, telescopically re- and extractable guide rails are provided on -the pivoting lever, which, after having been moved out into the strand guideway, seize a supporting seg-ment in a fork-like manner, whereupon counter guides ar-ranged on the supporting segment get into engagement with the-guide rails, the supporting segment thus being removable from the installed position along the guide rails.
Patent CA-1146870-A (CA)
Inventor: BITTER JOHAN G A
IPC: B01D61/40
Filed: 1980-03-04
Granted: 1983-05-24
Abstract: ABSTRACT            PROCESS AND PLANT FOR BREAKING OF WATER-OIL                 EMULSIONS      Process and plant for breaking water-oil emulsions comprising passing the emulsion through a micro-pore membrane having an array of hydrophilic zones interspersed amongst an array of oleophilic zones. The two phases settle apart after passing through such a membrane.