baber/WOPTO huggingface dataset:
Patent CA-1153594-A (CA)
Inventor: GARDLUND GOERAN W
IPC: G03B/
Filed: 1981-02-25
Granted: 1983-09-13
Abstract: AN ENVELOPE FOR TRANSPARENCIES FOR OVERHEAD        PROJECTORS AND LIKE PROJECTING APPARATUSES     ABSTRACT An envelope for transparencies for overhead projectors comprises a substantially rectangular pocket of transparent plastic sheet material.  The pocket is open along at least one side edge for insertion of the transparency to be presented therebetween.  At least one opaque flap is attached in a foldable manner along one of the longitudinal side edges of the pocket, said flap being attached to and spaced a distance from the longitudinal edge such that holes may be punched in the sheet material along said side edge between the flap and said-edge and that in the unfolded position the flap covers the longitudinal side edge and in the folded position it exposes said longitudinal side edge and any holes to permit storage in a binder, file or the like.
Patent CA-1156208-A (CA)
Inventor: MCDANIEL MAX P
IPC: C01B33/152
Filed: 1981-03-24
Granted: 1983-11-01
Abstract: ABSTRACT OF THE DISCLOSURE A method comprising combining a silicate ester and water under hydrolysis conditions in the presence of a sufficient amount of solvent that the reaction mixture remains as a single phase, adding sufficient acid neutralizing agent to form a gel and separating solvent and water from the resulting silica. In a preferred embodiment, the ester and water are added toa very small amount of solvent, the addition of water being sufficiently slow that it is added at about the rate it is used up in the hydrolysis reaction. The resulting silica does not require the washing step to remove alkali metal ions since it is not made from sodium silicate, and it has large pore structure because it can be made in a relatively concentrated solution because of the use of only a minimum amount of solvent and also because the hydrolysis is carried out under conditions wherein only a single phase is produced. The resulting silica is suitable for chromatographic columns and fillers in rubber and plastics but is of primary utility as a base for a chromium oxide catalyst because of its simplicity in production and inherent large pore volume.
Patent CA-1124681-A (CA)
Inventor: GRUNBAUM BENJAMIN W
IPC: B01D57/02
Filed: 1981-03-30
Granted: 1982-06-01
Abstract: MICROELECTROPHORETIC APPARATUS AND PROCESS                     ABSTRACT OF THE DISCLOSURE         Disclosed is an article of manufacture being a shallow square gel-containing tray having a tight-closing cover slidably engageable therewith, which can be used in suitable microelectrophoretic apparatus for simultaneous determination of up to thirty protein samples by electrophoresis. Preferably the tray and cover assembly contains up to 30 pairs of sample-receiving slots in the gel, the pairs being arranged to achieve the cross-over migration of antigen and antiserum, and the resulting formation of visible precipitins.
Patent CA-1168472-A (CA)
Inventor: IZUMI NAOE
IPC: G01N1/24
Filed: 1981-04-27
Granted: 1984-06-05
Abstract: Abstract of the Disclosure The disclosed sampling device has a gas suction tube through which gas with a high content of dust is sucked into the sampling device so as to cleanse the gas with water in the sampling device before analyzing the gas.  At least one air nozzle is provided in the gas suction tube in such a manner that the air nozzle faces the inside surface of the gas suction tube wall and is directed toward the inlet opening of the gas suction tube, so that dust and other deposits sedimented on the inside surface of the gas suction tube is cleansed by air jets ejected from the air nozzle.
Patent CA-1178272-A (CA)
Inventor: BENTLEY PETER H
IPC: C07D499/68
Filed: 1981-06-25
Granted: 1984-11-20
Abstract: - ABSTRACT -A compound of formula (I) or a pharmaceutically acceptable salt of in vivo hydrolysable ester thereof which has antibacterial activity and is used to treat infections in animals (I)   wherein R is phenyl, 4-hydroxy phenyl, or a 5- or 6- membered heterocyclic ring containing up to three heteroatoms selected from oxygen, sulphur or nitrogen, optionally substituted with hydroxy, amino, halogen or C1-6 alkoxy;        R1 represents hydrogen or C1-6 alkyl;        R2 and R3 are the same or different and represent hydrogen, C1-6 alkyl, halogen, amino, hydroxy, or C1-6 alkoxy.        Their preparation and use is described.
Patent CA-1183202-A (CA)
Inventor: CONTRI ROBERT F
IPC: H02P25/14
Filed: 1981-07-10
Granted: 1985-02-26
Abstract: ABSTRACT OF THE DISCLOSURE           A magnetic tachometer sensor for a motor control circuit having a motor driven interrupter wheel in proximity thereto supplies a motor speed signal to a frequency to voltage converter.  The frequency to voltage converter produces a DC signal proportional to the speed of the interrupter wheel.  The DC signal is compared to a user selected reference voltage in an error amplifier, thereby producing an error signal.  The error signal is supplied to an output comparator which also receives a sawtooth timing reference signal in synchronism with power supply alternating current.  The output comparator switches to trigger a triac into conduction when the sawtooth signal voltage exceeds the error voltage, thereby providing highly accurate timing of the switching point of the triac.  The triac is arranged to provide a phase angle speed control for an electric motor used in a household appliance.
Patent CA-1165908-A (CA)
Inventor: MATTHEWS DAVID W
IPC: H04B17/00
Filed: 1981-11-09
Granted: 1984-04-17
Abstract: METHOD AND APPARATUS FOR MEASURING SIGNAL TO NOISE RATIO IN A TDMA COMMUNICATIONS SYSTEM              Abstract of the Disclosure A method and apparatus for measuring signal to noise ratio in a time division multiple access (TDMA) communications system which does not require that normal communications be interrupted.  The signal to noise ratio measurement is performed on the unmodulated carrier which typically occurs in the preamble of each information burst in the TDMA format.  In order to perform the measurements on the carrier of the same burst in each frame, the carrier and noise powers are sampled at a predetermined time with respect to specified information which occurs at the same time in each frame, normally the frame reference burst. After being converted to the receiver intermediate frequency, the unmodulated carrier is fed to both a narrow band pass filter having a pass band at the intermediate frequency and a narrow band stop filter having a stop band at the intermediate frequency.  The ratio of the band pass filter output to the band stop filter output is the signal to noise ratio within a very small error.
Patent CA-1137094-A (CA)
Title: Phthalic acid derivatives
Inventor: DARMS ROLAND
IPC: C07D307/89
Filed: 1981-11-23
Granted: 1982-12-07
Abstract: Abstract Novel phthalic acid derivatives of the formula   in which R1 and R2 independently of one another are alkoxy with 1-12 C ayoms or phenoxy or R1 and R2 together are the -O-group and R3 is alkyl with 2-7 C atoms, cycloalkyl with 5-7 C atoms or benzl, and process for their preparation.            These compounds are used for the preparation of silicon-modified phthalic acid derivatives which are used as adhesion promoters.
Patent CA-1181290-A (CA)
Inventor: MIKUNI YOSHIO
IPC: D05C9/06
Filed: 1981-11-23
Granted: 1985-01-22
Abstract: ABSTRACT OF THE DISCLOSURE     An embroidering apparatus for use with a sewing machine has a body movable on a bed and guided for back-and-forth and lateral movement, a manually actuatable table and an embroidery frame which are angularly movably at-tached to the body, a transmission for transmitting angu-lar movement from the table to the embroidery frame and a fixed tracing needle oriented to the table, on which an original pat-tern is to be placed, the tracing needle being located at the center of rotation of the table when the sewing needle is positioned at the center of rotation of the embroidery frame.
Patent CA-1179213-A (CA)
Inventor: NAKAHARA MOTOHIRO
IPC: C03B37/014
Filed: 1981-12-11
Granted: 1984-12-11
Abstract: ABSTRACT OF THE DISCLOSURE        A process for producing an optical fiber preform in a muffle furnace by hydrolyzing a gaseous glass forming material with a flame from an oxyhydrogen burner and deposit-ing the resulting soot in a rod shape and an apparatus therefor are described, wherein a gas is supplied to the muffle furnace other than from said burner, and the volume supply of said gas is held constant by controlling the amount of a control gas supplied into an intermediate portion of all exhaust pipe through which the gases formed in the muffle furnace and the fine glass particles that do not deposit in a rod shape are discharged.
Patent CA-1172869-A (CA)
Inventor: FENN LLOYD B
IPC: C05G3/90
Filed: 1981-12-14
Granted: 1984-08-21
Abstract: NEW COMPOSITION OF MATTER AND METHOD OF USE FOR NITROGEN FERTILIZATION                                ABSTRACT      A method is provided for reducing ammonia volatiliza-tion from ammoniated fertilizers and urea-containing fertilizers present on or at the soil surface after 24-48 hours following surface application.  The fertilizer is applied in the presence of a water soluble compound that (a) has a saturated solution pH of about 5.0 to about 8.0 and (b) in a hydrolyzing system with the soil and the fertilizer, will form carbonates having a solubility above about 10 10 grams per liter.  The amount of the water soluble compound is that which is sufficient to suppress the formation of hydroxyl ions that otherwise would be produced in the soil according to the reaction YCO3 + H20 ? Y(OH)2 with Y = calcium or magnesium.
Patent CA-1192444-A (CA)
Inventor: THEURER JOSEF
IPC: E01B27/13
Filed: 1981-12-16
Granted: 1985-08-27
Abstract: ABSTRACT OF THE DISCLOSURE     In a mobile machine for compacting ballast supporting a track, a machine frame carries a tie tamping unit and a track stabilization unit mounted substantially in the same area on the machine frame.
Patent CA-1188151-A (CA)
Title: Non-impact dot matrix printer
Inventor: BROOKS RALF M
IPC: B41J27/00
Filed: 1982-03-03
Granted: 1985-06-04
Abstract: NON-IMPACT DOT MATRIX PRINTER            Abstract of the Disclosure Non-impact encoding is derived from light energy which is transmitted from a plurality of laser diodes through a fiber optic array to a thermal sensitive ribbon to form dot matrix characters on plain paper maintained in close contact with the ribbon and the print head.
Patent CA-1191661-A (CA)
Inventor: LORSON EMMETT D
IPC: A47L9/10
Filed: 1982-04-02
Granted: 1985-08-13
Abstract: ABSTRACT OF THE DISCLOSURE              A dirt cup cleaner or the like is provided with a dirt cup holder that telescopically engages with a handle for the cleaner and includes a fill tube for the cleaner and a dirt cup depending from the dirt cup holder.
Patent CA-1160117-A (CA)
Inventor: BERLIK LEE J
IPC: F24C3/10
Filed: 1982-04-02
Granted: 1984-01-10
Abstract: MODULAR GAS CARTRIDGE                  Abstract of the Disclosure A modular gas operated heating cartridge adapted for inserting into a compartment of a surface gas range.  The cartridge includes a pan in which is mounted an igniter and at least one gas burner.  When positioned in the compartment, the mixer head of the burner aligns with an orifice hood secured within the compartment.  Also, the igniter makes electrical contact with a connector secured within the compartment.  The modular cartridge can be removed for repairing, cleaning, or changing the configuration of the range surface.
Patent CA-1179551-A (CA)
Inventor: ARWAY GEORGE W
IPC: B41J2/18
Filed: 1982-04-30
Granted: 1984-12-18
Abstract: LOW EVAPORATION INK CATCHER FOR INK JET PRINTING SYSTEM           ABSTRACT OF THE DISCLOSURE         An ink return system for an ink jet printer which directs a portion of the ink projected from a nozzle to a print surface and the remainder to a catcher, the catcher having a receptacle entrance for intercepting the ink stream including a tube with an entrance to catch the ink stream and then convey the ink liquid along a flow path away from the catcher and a cowling adjacent the receptacle connected to a vacuum source to create a scavenging air flow at the tube entrance for ingesting ink mist without exposing the intercepted liquid ink to the relatively high rate of air flow necessary to sweep away the ink mist.
Patent CA-1167862-A (CA)
Inventor: DENTEL DAVID A
IPC: C07C255/49
Filed: 1982-06-09
Granted: 1984-05-22
Abstract: ABSTRACT 2,6-dibromo-4-cyanophenyl octanoates and other esters of 3,5-dibromo-4-hydroxybenzonitrile may be produced by reacting 4-hydroxybenzonitrile with bromine in the presence of an inert solvent and catalytic amounts of a basic heterocyclic aromatic compound or its hydrohalide, followed by removal of unreacted bromine and addition of octanoyl chloride or other acyl halide to the reaction mixture and recovery of the desired ester together with recyclable pyridine hydro-halide catalyst and solvent.
Patent CA-1176200-A (CA)
Title: Bottle processing machine
Inventor: ZODROW RUDOLF
IPC: B67C7/00
Filed: 1982-06-09
Granted: 1984-10-16
Abstract: ABSTRACT OF THE DISCLOSURE A labelling or filling machine for containers such as bottles has a turntable with at least two arcuate conveyor track sections each carrying a row of bottles.  Stationary or moving processing elements, such as labelling stations or filling nozzles are associated with the track sections.  Transfer mechanisms, more particularly in the form of inlet or outlet spiders, are located at the inlets to and outlets from the track sections and are connected to feed and removal conveyors, such as belt conveyors.  The feed conveyor running to the transfer mechanism for the one conveyor track section, and the removal conveyor adjacent the transfer mechanism for the other conveyor track section, extend side by side and approximately centrally across the turntable. All feed and removal conveyors are arranged on the same side of the turntable and run side by side.  The feed conveyors are arranged externally of the turntable at higher or lower levels than the removal conveyors and run, one above the other, without intersections, to a connecting conveyor.
Patent CA-1170072-A (CA)
Inventor: PHILLIPS JAMES W
IPC: G01L9/04
Filed: 1982-06-21
Granted: 1984-07-03
Abstract: STRAIN GAUGE PRESSURE TRANSDUCER      Abstract of the Disclosure A strain gauge pressure transducer comprising a housing having an internal pressure cavity across which is mounted a flexible elastomeric diaphragm that separates high and low pressure chambers in the gauge that the housing is arranged to separately connect the sources of high and low pressure, respectively.  A range spring in the form of a leaf spring is anchored to the housing cantilever fashion in the high pressure chamber and to one side of the diaphragm to dispose the live length of same, as defined by a clamp device, in overlying relation to the diaphragm, to which the leaf spring live length is connected for deflecting movement thereof by the diaphragm.   The leaf spring has fixed to its live length a strain gauge in the form of four square grid etched foil sensing elements of the self temperature compensated type connected in Wheatstone bridge fashion that forms an electro-mechanical transducer that is powered by an electronic circuit mounted inside the gauge on a printed circuit board that is in overlying relation to and spaced from the leaf spring, which when energized supplies a constant direct voltage, to the strain gauge.  Deflection of the leaf spring live length under deflection of the diaphragm in response to fluid pressure applications to the high and low pressure chambers unbalances the strain gauge from a null relation and effects a corresponding change in the strain gauge signal which is amplified and converted by the electronic circuit to a low output that is supplied to instrumentation such as a controller or recorder.  The electronic circuit has internal adjustments that provide for adjustment of the range or span of the transducer, and the zero operating point of the transducer.
Patent CA-1218060-A (CA)
Inventor: SKUBALLA WERNER
IPC: C07C35/48
Filed: 1982-06-23
Granted: 1987-02-17
Abstract: ABSTRACT OF THE DISCLOSURE           Novel 9-fluoro-prostane derivatives of the general formula I                                  (I) in which R1 represents a -CH2OH group, or represents a group of the formula    , in which R2 represents a hydrogen atom or an alkyl group with 1 to 4 carbon atoms, or represents a group of the formula     , in which R3 represents a C1-C10 acyl group or a methyl sulphonyl or an isopropyl sul-phonyl group or stands for R2, A represents a -CH2-CH2- group or a cis-CH=CH- group, B represents a -CH2-CH2- group, a trans-CH=CH- group or a -C?C- group, W represents a free or func-tionally modified hydroxy methylene group in which the hydroxyl group is in the ?- or .beta. -position, D and E together represent a direct bond or D represents a straight-chain or branched-chain bivalent aliphatic hydrocarbon group containing up to 10 carbon atoms which may be substituted by at least one fluorine atom and E represents an  oxygen or sulphur atom, a direct bond, a -C?C- group or a group of the formula -CR6=CR7-in which R6 and R7 have different meanings and each represents a hydrogen atom, a chlorine atom or an alkyl group, R4 repre-sents  a free or functionally modified hydroxyl group, R5 represents a hydrogen atom, or a straight chained or branched saturated or unsaturated alkyl group with 1 to 6 carbon atoms or when E is oxygen, represents a phenyl group, and the fluor-ine atom in the 9-position is in the ?- or .beta.- position with the proviso that D-E-R5 is other than n-pentyl when W is hydr-oxymethylene or RO-methylene, B is  trans-CH=CH-, is bis-CH=CH-, R1 is -COOH or -COOCH3, and R is H or tetrahydropyranyl or a physiologically  tolerable salt thereof with a base where R1 represents a group of the formula     in which R2 repre-sents a hydrogen atom.   The 9-fluoro-prostane derivatives and pharmaceutically acceptable salts thereof have inter alia a luteolytic and abortive activity and may accordingly be made up into pharmaceutical preparations with suitable carriers.
Patent CA-1171456-A (CA)
Inventor: REYNOLDS CHARLES E
IPC: H01R43/20
Filed: 1982-06-23
Granted: 1984-07-24
Abstract: ABSTRACT OF THE DISCLOSURE A connector of a type used with dry cell batteries comprises an insulating support having a snap fastener plug terminal and a snap fastener socket terminal on one surface thereof.  The support has terminal supporting projections on its one surface and the terminals are stamped and formed sheet metal members.  The terminals are partially inserted through the support so that the external contact portions of the term-inals are against the terminal supporting projections and the internal or second contact portions of the terminals are on the reverse surface of the support.  The connector can be used as a closure for the jacket of a 9-volt battery.  A manufacturing method for the connector is also disclosed.
Patent CA-1187690-A (CA)
Inventor: HOUSE ROY F
IPC: C09K8/10
Filed: 1982-07-29
Granted: 1985-05-28
Abstract: Abstract Hydroxyethyl cellulose and a sequestrant are added to a heavy brine containing one or more salts selected from calcium chloride, calcium bromide, and zinc bromide to increase the viscosity of the brine.  Preferably the brine contains zinc bromide, has a density in the range from about 14.2 - 19.2 pounds per gallon, and the sequestrant is a polyphosphonic acid or water soluble salt thereof.
Patent CA-1204258-A (CA)
Inventor: GUZY RAYMOND L
IPC: B29C70/06
Filed: 1982-08-18
Granted: 1986-05-13
Abstract: ABSTRACT:           A continuous tape comprising at least one continuous glass fiber strand extrusion-coated with a curable friction resin composition.  The tape is useful in the winding of preforms which may be thermally cured under pressure to provide friction elements such as friction clutch facings.
Patent CA-1196872-A (CA)
Inventor: FRANCESCONI MARINO JR
IPC: B01D29/11
Filed: 1982-09-24
Granted: 1985-11-19
Abstract: ABSTRACT         An apparatus is disclosed for separating leaves, debris, dirt, and sediment from rain water.  The apparatus is comprised of a drawer-containing accumulating device insertable in the leader pipe bringing rain water from a roof by way of a gutter.  The drawer in the device contains a screen for sepa-rating leaves and debris from rain water.  The drawer is periodically removed and emptied.
Patent CA-1190142-A (CA)
Inventor: RATHIE LESTER C
IPC: E21B37/06
Filed: 1982-10-28
Granted: 1985-07-09
Abstract: CHEMICAL INJECTION SYSTEM FOR OFFSHORE DRILLING RIGS    ABSTRACT OF THE DISCLOSURE          Conventionally, anti-freeze such as methanol, is injected through a chemical valve sub situated below the sea bed, with the chemical being pumped from the surface through a tube situated externally of the string.  However, difficulty is encountered when passing through a blow-out preventer assembly particularly when associated with a slick joint and typically, internal and external bores and con-duits are used for this purpose with difficulties in effect-ing efficient seals engaging between the joints and bores together with the possibility of damage occurring to the external fluid conduit portions of the bypassing section. The present invention utilizes a pierced slick joint assem-bly whereby the fluid is conveyed from the upper end of the centralizer, through the slick joint and through the lower hanger all internally, thus eliminating any possibi-lities of the collapsing of conduits or other damage from occurring.  Furthermore, double fail closed check valves may be incorporated adjacent the upper end of the slick joint assem-bly as well as in the chemical valve sub in order to prevent oil and/or gas from entering the chemical carrying conduits if excess pressure is encountered.
Patent CA-1188707-A (CA)
Inventor: MERK WERNER
IPC: C11B3/10
Filed: 1982-11-17
Granted: 1985-06-11
Abstract: ABSTRACT     Fats especially for the preparation of cocoabutter substitutes are refined by contact in organic solution with an adsorption agent, preferably packed in a column down which the solution is percolated, the fat being pre-treated with bleaching earth of active carbon.  This improves the life of the adsorbent which can be regenerated several times without loss of efficiency.
Patent CA-1194214-A (CA)
Title: Community antenna arrangement
Inventor: GROENEWEGEN WILLEM F M
IPC: H04N7/10
Filed: 1982-12-09
Granted: 1985-09-24
Abstract: 19 ABSTRACT: Community antenna arrangement I - III for a frequency-division multiplex transmission of at least four television signals, comprising a frequency-conver-sion arrangement (C1-Cj, ?1 - ?k) connected to a dis-tribution network (II, III) for converting the channel frequency distribution of the television signals from an input channel pattern to an output channel pattern in which output channel pattern the picture carriers of the television signals succeed each other with frequency spacings of which not more than two consecutive frequency carrier distances in the second output channel pattern to be equal to an integer of a certain frequency interval, the higher order intermodulation products appear at fre-quencies which are mutually spaced over fixed distances of the order of this frequency interval which distances equalize an integer of said frequency interval relative to the picture carriers. According to the invention, this frequency interval must be chosen so that the inter-modulation products predominantly occur in interference-insensitive positions in the TV-signals spectrum, as a result of which the effect of interferences due to inter-modulation is significantly reduced.