baber/WOPTO huggingface dataset:
Patent CA-1161877-A (CA)
Inventor: RAJ KULDIP
IPC: F16J15/43
Filed: 1981-11-18
Granted: 1984-02-07
Abstract: ABSTRACT OF THE DISCLOSURE       A single-stage, ferrofluid, rotary-shaft seal apparatus of extended seal life is particularly adapted for use as an exclusion seal with a computer-disc-drive spindle.  The seal apparatus comprises:  an annular permanent magnet; first and second pole pieces of identical width, having an L-shaped, cross-sectional configuration at the one end thereof, with the one end thereof extending into a close, noncontacting relationship with the surface of the shaft to form a defined radial gap, while the inside diameter of the projection at: each end forms an interstage region; and a ferrofluid retained by magnetic flux in the radial gap and interstage region, to form a single-stage, ferrofluid, O-ring seal on the surface of the shaft.
Patent CA-1170527-A (CA)
Inventor: BROWN PAUL
IPC: A61B10/00
Filed: 1981-12-22
Granted: 1984-07-10
Abstract: METHOD AND APPARATUS FOR COLLECTING SALIVA ABSTRACT OF THE INVENTION A method and apparatus for collecting saliva from a test subject comprises providing a flavored absorbent mass, such as a sponge, for mastication and charging with saliva and then expressing the saliva from the mass. Apparatus for this method comprises a barrel-piston arrangement in association with a specimen vial for storage until diagnostic testing.
Patent CA-1141023-A (CA)
Inventor: OKADA TAKASHI
IPC: H04N9/16
Filed: 1981-12-30
Granted: 1983-02-08
Abstract: ABSTRACT OF THE DISCLOSURE           A luminance control circuit for a television receiver produces a control signal in response to a video signal exceeding an end of the dynamic range of a cathode ray tube.  Gain control circuits in the path of the  video signal to the cathode ray tube adjust their gain in response to the control signal to maintain the video signal within the dynamic range of the cathode ray tube   The end of the dynamic range at which the video signal may be controlled includes one or both of the white peak and black levels.  The control signal may also be responsive to an average cathode ray tube beam current exceeding a predetermined value
Patent CA-1179542-A (CA)
Inventor: STARK KARL G C
IPC: A01B19/00
Filed: 1982-02-01
Granted: 1984-12-18
Abstract: ABSTRACT       Arrangement in harrows comprising a generally ho-rizontal framework (2) adapted to be propelled on a prefe-rably variable level above ground. The framework includes parallel frame rods (3) of polygonal cross-section and carries substantially resilient tines (4) which are adapted in a per se known manner to engage the soil by breaking or digging, the tines (4) are disengagebly attachable to the polygonal frame rods (3) of the framework in arbitrary positions along said rods by a tightenable fastening means provided with a clamping bow (5). The fastening means (5) is so designed that in tightened position it can take at least two different, fixable angular positions (6, 7, 8) about the axis of the polygonal frame rod (3) because the fastening means (5) in each angular position (6, 7; 8) has at least two guide portions (6'-6'', 7'-7'', 8'-8''), which coact with two of the corners (3', 3'') of the polygonal frame rod (3). The insertion portion (9) of the tine is complementarily adapted to the fastening means (5) and by being clamped by means of a clamping bow (20) embracing the frame rod (3) it is pressed in the direction of the frame rod (3) so that the tine (4) cannot turn about the axis of the frame rod.
Patent CA-1177951-A (CA)
Inventor: IAFRATE GERALD J
IPC: H03H9/46
Filed: 1982-02-17
Granted: 1984-11-13
Abstract: ABSTRACT OF THE DISCLOSURE   An acoustic diffractometer which comprises:  a substrate; and at least two layers of semi-insulating, acoustically mismatched material on said substrate.  The acousto-physical properties of each of the layers differs one from the other thereby defining an acoustically mismatched superlattice. There is also provided, preferably, means for launching an acoustic wave in the device and receiving outputs of said device.  More preferably, input and output ports are located respectively, at alternate ends of the superlattice, or in another embodiment on the same side of the superlattice.  More preferably still, multiple interdigital transducers may selectively be used as input and output ports, respectively, to enable a selectivity of response characteristics to the user.  The material on the substrate comprises epitaxially grown layers of semi-conducting material, preferably a material in the cubic class 43m, particularly from the II-VI or III-V compound semiconductor group.
Patent CA-1171433-A (CA)
Inventor: POISSON PAUL
IPC: G07F7/08
Filed: 1982-02-23
Granted: 1984-07-24
Abstract: ABSTRACT  OF THE DISCLOSURE        An apparatus for recording identifying data concerning the use of a credit card, cheque or the like is provided with a weight scale for weighing the user, a register dispensing two copies of a receipt on which are printed the weight of the user and other data, such as the date of use of the apparatus, the number of the apparatus and a user reference number;  one copy of the receipt is dispensed to the user while the second copy is retained inside the apparatus.  A camera inside the apparatus photographs the user through a one-way mirror. simultaneously with the other copy of the receipt which is passed in photo-graphic view of the camera.  Activation of the camera is accomplished when the user inserts the credit card, cheque or like document into an appropriate slot and, if required, the appropriate amount of coin.
Patent CA-1163679-A (CA)
Inventor: BZDULA JOSEPH A
IPC: G01N27/06
Filed: 1982-03-02
Granted: 1984-03-13
Abstract: Method of Testing Oil for Ionic Contaminants -Abstract A method of testing oil for ionic contaminants is disclosed.  The method comprises isolating a sample of the oil to be tested and mixing it with an equal weight of distilled water to dissolve ionic contaminants in the oil sample into the distilled water.  Then, the contaminated water is separated from the mixture and its conductivity is determined.  An alternative to separating the contaminated water is to use a surfactant to form an oil in water emulsion with the oil sample and the distilled water.  The conductivity of the emulsion is determined directly.  The magnitude of the conductivity directly indicates the amount of ionic contaminants present in the oil being tested.  This method is especially suitable for determining the level of ionic contamination in the refrigerant of a refrigeration system of the type having a compressor drive which is lubricated with oil and wherein there is contact between the refrigerant and the oil. Ionic contaminants in the refrigerant of a refrigeration system are direct indicators of the presence of excessive amounts of water and/or certain undesirable metals in the refrigerant since these substances cause the formation of ionic contaminants in the refrigerant.
Patent CA-1201045-A (CA)
Inventor: HASELKORN MICHAEL H
IPC: C23C22/08
Filed: 1982-03-10
Granted: 1986-02-25
Abstract: A METHOD OF PROVIDING AN ANTI-STICK COATING ON NON-ORIENTED, SEMI-PROCESSED ELECTRICAL STEELS TO BE SUBJECTED TO A QUALITY ANNEAL           ABSTRACT OF THE DISCLOSURE A process of providing an inorganic anti-stick coating directly on non-oriented, semi-processed electrical steels by applying to such steels a coating solution containing A1+++, Mg++, and H2PO4-  in a specified relative relationship, the concentration of AL+++, Mg++ and H2PO4-comprising 100 parts by weight calculated as Al2O3, MgO and H3PO4, respectively, on a water-free basis.  The coating solution may additionally contain from 0 to 150 parts by weight of colloidal silica on a water-free basis. Chromic anhydride (CrO3) may be added to the coating solution to improve its wettability and improve the moisture resistance of the anti-stick coating.  The coating solution is so diluted with water as to provide a uniform coating as thin as possible to prevent lamination sticking and having a coating weight of less than 2 gramns per square meter on each side.  The coated electrical steel is subjected to a heat treatment to cure the anti-stick coating thereon.
Patent CA-1184384-A (CA)
Inventor: BRAUN ALBERT
IPC: C21C1/02
Filed: 1982-03-16
Granted: 1985-03-26
Abstract: ABSTRACT OF THE DISCLOSURE     The disclosure relates to a process for the manu-facture of desulfurizing agents containing 1-6 weight % chemically combined water, based on calcium oxide and carbon-containing calcium carbide, for crude iron and steel melts. More particularly, the disclosure provides for a molten mixture of calcium carbide and calcium oxide containing 20 to 80 weight % CaO to be made from lime and coke; for the mixture to be allowed to cool and solidify into a block; for the solidified block while it still has an average temperature of more than 400°C to be crushed to particles with a size of less than 150 mm; for the comminu-ted mixture, which still has a temperature  of at least 400°C, to be admixed with a quantity of calcium oxide necessary to establish in the resulting mixture a total content of CaO corresponding to the CaO content desired in the end product; and for the mixture to be gound while intensively mixing it with free carbon and carbonate in the presence of air or nitrogen with a moisture content of 5 to 20 g/m3 (at 1.013 bar and 273.15 K) at temperatures below 100°C to particles with a size of less than 10 mm.
Patent CA-1186824-A (CA)
Inventor: WILLOUGH LINDA
IPC: H03M11/04
Filed: 1982-03-19
Granted: 1985-05-07
Abstract: NON-VERBAL COMMUNICATION DEVICE                           Abstract A device for facilitating non-verbal communications between individuals.  The device includes a two-sided panel containing a plurality of message blocks which are selectively illuminated by the individuals in a variety of modes.  In a first mode, the message blocks are sequentially scanned in one of two patterns, with scan direction and termination being con-trolled by actuating a switch.  In a second mode, a transparent, direct select keyboard is placed over the message blocks and individual message blocks are selected by touching the keyboard in front of the block to be selected.  Finally, the position of the illuminated message block may be controlled by a joy stick.          The message blocks on the panel are printed on removable over-lays which are specially adapted for various situations.  The overlays carry identifying markings which are automatically read by the device so that the messages on the overlay, which are stored in non-volatile memory, can be correlated to their posi-tion on the panel. The overlays include a number of special function blocks which, when selected, cause the device to oper-ate a wheelchair, sound an audio alarm, communicate with a com-puter or other device through a serial I/O port, or communicate ultrasonically with external devices.  Each message block may include several different messages, with the message selected in that block being designated by a corresponding level-selection block.  The messages may be either letters or words, and the combination of letters and words may be accumulated in an alpha-numeric display or a printer.
Patent CA-1200753-A (CA)
Inventor: WADA CHUZOH
IPC: F23D3/26
Filed: 1982-05-19
Granted: 1986-02-18
Abstract: ABSTRACT OF THE DISCLOSURE           A burner of wick type is disclosed which secures user safety by stopping combustion through an oxygen depletion protection function in the event of an oxygen depletion.  When tar is accumulated in the wick, the wick is burnt to clean the tar with the liquid fuel supply cut off, thus burning out the liquid fuel contained in the wick.  In the process, the combustion temporarily becomes unstable and a great amount of carbon monoxide is generated, resulting in a state similar to oxygen depletion. In a burner with an oxygen depletion protection function, the combustion is stopped during the wick cleaning, with the result that most of the tar accumulated in the wick remains unburnt, ad-versely affecting both the fuel absorption characteris-tic and service life of the wick.  This invention is such that the oxygen depletion protection function is not opera-ted during the wick cleaning.  The tar accumulated in the wick is mostly burnt out and thus the deterioration of the fuel absorption characteristic is prevented thereby improving the service life of the wick.
Patent CA-1192016-A (CA)
Inventor: WENDEL WENDEL R
IPC: E04B1/19
Filed: 1982-07-13
Granted: 1985-08-20
Abstract: ABSTRACT OF THE INVENTION       This invention provides a connection for the structural mem-bers of a space frame.  The connection is composed of a central hub on which there are provided a number of ear pairs.  Each ear pair may receive and support the end of a structural member.  The hub is preferably manufactured of a light metal such as aluminum by extrusion.
Patent CA-1182815-A (CA)
Inventor: CHU NAN S
IPC: C09B5/14
Filed: 1982-07-14
Granted: 1985-02-19
Abstract: ABSTRACT OF THE DISCLOSURE          Polymeric dyes comprising polyorganosiloxane backbones having joined thereto, by non-hydrolyzable linkages, aromatic chromophore moieties.
Patent CA-1186989-A (CA)
Inventor: BEKESI JULIUS G
IPC: G01N33/574
Filed: 1982-07-20
Granted: 1985-05-14
Abstract: LEUKOCYTE ADHERENCE INHIBITION ASSAY                    ABSTRACT OF THE DISCLOSURE          A new technique is disclosed for assaying for the presence of invasive cancer.  While based on leukocyte adher-ence inhibition, it is improved by using relatively long lived radio-labeled leukocytes, fractionation of the leukocytes to separately treat T-cells and monocytes and by providing for human plasma or serum in the incubation medium.
Patent CA-1163641-A (CA)
Inventor: KOEPPE HERBERT
IPC: A61P9/08
Filed: 1982-07-21
Granted: 1984-03-13
Abstract: ABSTRACT       The  invention relates to 1-aryloxy-3-alkynylamino-propan-2-ols of general formula I                    I            (wherein R1 represents a cycloalkyl group with 3 to 10 carbon atoms, a phenyl group (which may optionally be substituted by one or more halogen atoms, lower alkyl, alkoxy, acyl, acyloxy, hydroxyalkyl, alkoxyalkyl, alkenyl, alkenyloxy or alkynyl groups, nitro, trifluoro-methyl or hydroxy qroups or a ring-forming group (-CH=CH-)2 or -0-CH2-0-), or an aryloxyalkyl group (which may optionally be substituted by one or more halogen atoms, lower alkyl, alkoxy, alkenyl, alkenyloxy, alkynyl, acyl or acyloxy groups, nitro or trifluoromethyl groups or a ring-forming group (-CH=CH-)2 or -0-CH2-0-), R2 represents a hydrogen or halogen atom, an alkyl or alkoxy group with 1 to 4 carbon atoms or a ring-forming qroup -CH=CH-CH=CH- or -(CH2)n- (n = an integer from 3 to 5) with the free valencies bonded in the o-position relative to one another, R3 represents hydrogen or an alkyl group with 1 to 3 carbon atoms, R4 represents an alkyl group with 1 to 3 carbon atoms or, together with R3, represents a ring-forming group -(CH2)p- (p = an integer from 4 to 6)), and the acid addition salts thereof.      The new compounds may be obtained, for example, by reacting compounds of formula II                       II     wherein R1 and R2 are defined as in formula I and Z represents the group   or -CHOH-CH2-Hal (Hal = halogen), with an amine of general formula                 III     The new compounds may be used as therapeutic agents for cardiac and coronary disease or also for lowering blood pressure.
Patent CA-1194360-A (CA)
Inventor: STRATMANN WILHELM
IPC: A23D7/00
Filed: 1982-09-01
Granted: 1985-10-01
Abstract: Abstract of the disclosure The present invention relates to a fat blend useful for producing butter-like spreads:. The fat blend comprises (i) a non-interesterified component based on tallow fat or a fraction thereof, and (ii) a mixture of triglycer-ides obtained by interesterification of tallow fat or a fraction thereof with a liquid oil or a mixture of a liquid oil and a hydrogenated oil.
Patent CA-1175949-A (CA)
Inventor: BURR ROBERT P
IPC: H05K13/06
Filed: 1982-09-07
Granted: 1984-10-09
Abstract: ABSTRACT           A process for extending and fixing conductors to circuit board base surfaces between pre-established spaced points in straight paths and pre-established spaced points in inflected paths the steps comprising fixing the end of the conductor to the first of the pair of pre-selected points and, while feeding the conductor with a guide, moving the board and guide relative to each other along a straight path to the second of the pair of pre-established points or to an inflection point if the conductor is to be inflected.  Where the conductor is to be inflected and is guided to the inflection point, affixing the conductor to the board surface at the inflection point  and then inflecting the guide and board relative to each other and moving the board and guide relative to each other in a straight path in a second direction to the next following inflection point. Affixing the conductor to the board surface at the next following inflection point, and repeating the foregoing steps until the conductor has been affixed to the pre-established inflection points in the conductor path and the end of the conductor is at the second of the pair of pre-established points.  With the end of the conductor at the second of the pair of points, severing the conductor and fixing the conductor end to the second pre-established point.  Repeating the foregoing steps until all of the pre-established spaced points have been interconnected with conductor either in straight or deflected paths. Affixing the conductor to the board blank surface with all adhesive by applying pressure to the conductor pattern.
Patent CA-1197069-A (CA)
Inventor: THORNTON THOMAS A
IPC: C01G43/025
Filed: 1982-09-10
Granted: 1985-11-26
Abstract: METHOD FOR PREPARING A SINTERABLE URANIUM DIOXIDE POWDER        ABSTRACT OF THE DISCLOSURE       The invention discloses an improved method for preparing a sinterable uranium dioxide powder for use and preparation of nuclear fuel wherein microwaves heat a start-ing material comprising a compound selected from uranyl nitrate hexahydrate, ammonium diuranate and ammonium uranyl carbonate for a sufficient period to decompose the starting compound; continuing to heat the decomposed compound in a microwave induction furnace in reducing atmosphere until the decomposed compound further decomposes to uranium dioxide powder.  The powder is then cooled in a reducing atmosphere.          The method may be practiced in a number of different atmospheres, such as an oxidizing atmosphere or a reducing atmosphere, to meet specific products needs.  Desirable temperature ranges for practicing the invention are also practiced.
Patent CA-1193873-A (CA)
Inventor: ASSELMAN GEORGE A A
IPC: F25D11/02
Filed: 1982-09-30
Granted: 1985-09-24
Abstract: ABSTRACT: "Refrigerator".     The invention relates to a refrigerator having a freezing compartment 2 and a refrigerating compartment 3, which refrigerator comprises a primary refrigerating system which contains a refrigerant and which comprises a primary evaporator 7 arranged in the freezing compartment 2, and a secondary refrigerating system which also contains a refrigerant and which com-prises a secondary evaporator 8 arranged in the refrigera-ting compartment and a secondary condensor 10 which is in heat-exchanging contact with the primary evaporator 7, to which secondary refrigerating system a reservoir 12 is connected which contains an adsorbent 13 for the refrige-rant, the adsorbent being a porous solid substance which can be heated by means of an electric heating element 14 included in an electric control circuit, which control circuit comprises a temperature-sensitive element arranged in the refrigerating compartment, which temperature-sensitive element controls the heating element so as to maintain a specific temperature level in the refrigerating compartment. Suitably, the adsorbent is silica gel and the used refrigerant for the secondary refrigerating system is CF2Cl2.
Patent CA-1198419-A (CA)
Inventor: GANDOLFI CARMELO
IPC: C07D317/14
Filed: 1982-11-30
Granted: 1985-12-24
Abstract: ABSTRACT          The invention relates to new compounds of formula I                                        I   wherein R is (a)  a free or esterified carboxy group; (b)  -C(OR')3, where each R' group is independently C1-C6-alkyl or phenyl; (c)  -CH2-R", where R" is hydroxy or C2-C7-alkoxy; (d)   , where Ra  and Rb are chosen inde-pendently from the group hydrogen, C1-C6-alkyl, C2-C6-alkanoyl and phenyl;          (e)  -C?N; (f)    radical; (g)  -CHO; or (h)     radical where each X' is independently -O- or -S- and the R'a and R'b groups, whether the same or different, are C1-C6-alkyl or together form a straight or branched C2-C6-alkenylene chain; D is:    (trans), -C?C-,  , -O-, -S-, or  , where Rc may be hydro-gen, C1-C6-alkyl or C2-C6-alkanoyl; one of R1 and R2 and, independently, one of R3 and R4 is hydrogen, C1-C6-alkyl, C2-C10-alkenyl, C2-C10-alkynyl, phenyl, or aryl-C1-C6-alkyl and the other is hydrogen, hydroxy, C1-C6-alkoxy or aryl-C1-C6-alkoxy, or, R1 and R2 and, independently, R3 and R4 together form an oxo group; each R5 and R6, whether the same or different, may be hydrogen, C1-C6-alkyl or halogen, or R5, R6 and the carbon atom to which they are bound form a   or    radical; Y is:  -C?C-,   (trans),   (cis) where z is halogen, -NH-CO- or -NH-CH2-; X is:  -(CH2)m3-in which m3 is zero or 1,   (cis),    (trans), -O-, -S-, or   where Rc is as defined above; m1, m2, n1 and n2, whether the same or different, may be zero or an integer between 0 and 12 such that each sum m1 + m2 and n1 + n2 is less than or equal to 15; p and q are independent-ly zero or an integer between 1 and 3 such that the sum p + q is an integer of 1 to 6; R7 is (a') hydrogen; (b') Cl-C4-alkyl; or (c') an aryl group, either unsubstituted or substituted with one or more of the following: halogen, halo-Cl-C6-alkyl, Cl-C6-alkyl, Cl-C6-alkoxy, phenyl; and the lac-tones derived from compounds of formula I and the pharmaceutically or veter-inarily acceptable salts thereof.  The compounds display bronchodilator, luteolytic, anti-ulcerogenic and platelet anti-aggregant activity.
Patent CA-1181978-A (CA)
Inventor: CHU NORI Y C
IPC: G03C1/73
Filed: 1983-01-17
Granted: 1985-02-05
Abstract: PHOTOCHROMIC COMPOSITION RESISTANT TO FATIGUE          ABSTRACT         The organic photochromic composition of this invention comprises spiro [indoline-2,3'-[3H]-naphth [2,1-b] [1,4] oxazine]          (SO) dye and an unconventional ultraviolet stabilizer.  The ultraviolet stabilizer improves the light fatigue resistance of the SO dye and will not hinder the photocolorability of the pho-tochromic composition.
Patent CA-1204240-A (CA)
Title: Binder compositions for making nonwoven fabrics having good hydrophobic rewet properties
Inventor: COOK GERALD R
IPC: D04H1/64
Filed: 1983-02-17
Granted: 1986-05-06
Abstract: ABSTRACT A binder composition for nonwoven fabrics which comprises (a) a fugitive base salt of a phosphate ester surfactant or a carboxylate surfactant, (b) a latex comprising a vinyl acetate-ethylene-olefinically unsaturated carboxylic acid interpolymer colloidally suspended in water, the interpolymer containing about 0.5 to 7.0 weight percent olefinically unsaturated carboxylic acid and sufficient ethylene to provide the interpolymer with a glass transition temperature of from about -30 to +20°C, and (c) a polyvalent metal complex compound comprising a polyvalent metal ion and counter ions or ligands which hinder interaction of the poly-valent metal ion with the carboxylate and phosphate groups of the surfactant and interpolymer at room temperature, but at elevated temperature permit such interaction because the counter ions or ligands are expelled or are replaced by the anionic group of the surfactant and interpolymer. Nonwoven fabrics, particularly diaper innerliners, bonded with such binder compositions possess good dry and wet tensile strengths and good low rewet properties.