baber/WOPTO huggingface dataset:
Patent CA-1071279-A (CA)
Inventor: STUHLER ROLF
IPC: H05B3/00
Filed: 1976-11-04
Granted: 1980-02-05
Abstract: ABSTRACT OF THE DISCLOSURE           An extension thermostat for controlling the energiza-tion of an electric heating element of e.g. a curling iron has a rod extending along the interior of a sensing tube which is inserted into the heating element, the rod having a lower co-efficient of thermal expansion than the heating tube.  The rod is secured to the tube at one point, and the tube is secured at a different point, whereby the rod moves within the tube on ex-tension and contraction of the tube in response to temperature variations.  One end of the rod engages one arm of a double-armed lever, the other of which is connected through a tempera-ture adjustment mechanism to a switch for opening and closing a current path to the heating element.  By adjusting the mechan-ism, the operating temperature of the curling iron can be regulated.
Patent CA-1077422-A (CA)
Inventor: GEISS VERNON L
IPC: A24B15/20
Filed: 1976-11-05
Granted: 1980-05-13
Abstract: Abstract of the Disclosure A process for the reduction of the nicotine content of tobacco by microbial treatment is disclosed.  Tobacco is subjected, under controlled conditions, to the action of a microorganism effective to degrade nicotine through a biochem-ical reaction in which, inter alia, 3-succinoylpyridine is formed.  Tobacco treated in accordance with this process, when incorporated into a tobacco smoking product, produces a mild smoke, having a reduced nicotine content.  However, there is no loss of desirable flavor, taste and smoking properties.
Patent CA-1088668-A (CA)
Inventor: LEWIS SCOTT C
IPC: G11C11/419
Filed: 1976-11-18
Granted: 1980-10-28
Abstract: ABSTRACT           A differential sense amplifier for semiconductor memory cells is described which uses charge transfer preampli-fication in combination with a ratioless cross-coupled latch circuit to provide sensing and regeneration of binary informa-tion stored in a charge storage device.  The sense amplifier may be utilized in arrays of single FET/capacitor memory cells in which the sense amplifier is centrally located and data input/output connections are made at one outside edge of the array.  Single bit line driving is made possible by the use of a bit decoder which unconditionally couples charge to a single bit line and of common mode charge coupling to decrease potentials on a pair of bit lines coupled to the sense amplifier.  The common mode bit line discharge means also increases response of the charge transfer preamplifier stage.  A single transmission gate device is used for both reading out from a single bit line and writing new data back in, thus simplifying the input/output circuitry.  A sense node shunting device is utilized during the bit line precharge portion of the memory cycle to partially charge the bit sense line previously discharged to ground in order to conserve power and to ensure proper operation of the charge transfer preamplifier on the next memory cycle.  In semicon-ductor memory applications where high performance is critical, the charge transfer preamplifier stage and common mode discharging circuit may be omitted and the bit lines connected directly to the sense nodes of a cross-coupled latching circuit without the loss of other benefits of the circuit.
Patent CA-1114994-A (CA)
Inventor: KNOX WALTER R
IPC: C08G63/12
Filed: 1976-12-29
Granted: 1981-12-22
Abstract: ABSTRACT OF THE DISCLOSURE The invention provides a process for the production of a polyester which comprises initiating a reaction between a poly-terminal epoxide, a mono-terminal epoxide and a cyclic diacid anhydride in the presence of a catalytically effective quaternary salt heating to a point at which the reaction becomes a self-sustaining exothermic reaction and controlling the reaction such that the temperature of the mixture is not reduced until after the exothermic reaction has begun to subside.
Patent CA-1089649-A (CA)
Inventor: CELADA JUAN
IPC: C22B25/00
Filed: 1976-12-30
Granted: 1980-11-18
Abstract: ABSTRACT OF THE DISCLOSURE A process for the direct gaseous reduction of iron ore to sponge iron wherein the sponge iron is cooled with a carbon-containing cooling gas by a dual temperature procedure that increases transfer of carbon from the cooling gas to the sponge iron and thereby permits the production of a product having a com-bination of relatively low or moderate metallization and relative-ly high potential metallization.  Increased productivity of the direct reduction plant and of the overall integrated steel plant are achieved.
Patent CA-1082583-A (CA)
Inventor: YOUNT ROGER E
IPC: C09J7/02
Filed: 1977-03-08
Granted: 1980-07-29
Abstract: LAMINATING METHOD FOR PRODUCING PRESSURE-SENSITIVE ADHESIVE COATED SUBSTRATES HAV-ING A RELEASE LAYER AFFIXED THERETO                 Abstract of the Disclosure A method for producing releasable laminates by coating a water-dispersed pressure-sensitive adhesive onto either a web of paper face stock or a web of release paper, joining the two webs together with the adhesive therebetween while the adhesive is still wet, and then drying under moderate conditions to produce a relatively wringle-free and flat laminate having an exceptionally smooth and uniform adhesive layer.
Patent CA-1038419-A (CA)
Title: Energy absorbing bumper assembly
Inventor: WELLER PETER A
IPC: B60R19/18
Filed: 1977-03-31
Granted: 1978-09-12
Abstract: ABSTRACT     An energy absorbing bumper assembly including a mounting means defined by a metal plate adapted for attachment to a vehicle and an elongated shell made of elastomeric material disposed adjacent or forwardly of the mounting plate.  A pair of urethane energy absorbing blocks are disposed adjacent the centerline of the bumper assembly between the frontal face of the shell and the mounting plate.  A second pair of energy absorbing urethane blocks are disposed adjacent the ends of the assembly between the frontal face of the shell and the mounting plate.  The shell is an integral member which includes a horizontal web having a first section at each end of the shell adjacent the outwardly disposed urethane blocks and extending longi-tudinally of the shell and engaging the mounting plate.  The web includes a pair of second sections each of which extends from one of the first sections toward the longitudinal centerline of the shell but with the second sections spaced from the mounting plate.  More particularly, each of the second sections tapers away from the mounting plate as it extends longitudinally toward the centerline of the shell.  Thus, the horizontal web is varyingly spaced from the mounting plate.
Patent CA-1039744-A (CA)
Inventor: COUCHOUD PAUL
IPC: C08L67/02
Filed: 1977-05-04
Granted: 1978-10-03
Abstract: La présente invention concerne de nouveaux composés pour l'obtention d'ignifugeants polymériques.  Ces nouveaux composés sont des diphénols de formule générale : où n = 0 ou 2.  Par réaction sur le chlorure de phosphonyle, sont obtenus de nouveaux polyphénylphosphonates aromatique  ayant des unités de récurrence de formule générale : dans laquelle n vaut 0 ou 2.  Les polyphénylphosphonates aromatiques, selon la présente demande, sont destinés à l'ignifugation de polyesters.
Patent CA-1051487-A (CA)
Inventor: BENTZEN-BILKVIST IB
IPC: B65G53/28
Filed: 1977-06-29
Granted: 1979-03-27
Abstract: ABSTRACT OF THE DISCLOSURE An unloading system for transferring dry bulk particulate material from a first container, such as a barge, into a pressure vessel, and thereafter into a storage container, all transferring being accomplished with vacuum and pressure equipment, and with the particulate material being aerated as it is transferred into the pressure vessel.
Patent CA-1088238-A (CA)
Inventor: IZAWA SHINICHI
IPC: C08L7/00
Filed: 1977-07-05
Granted: 1980-10-21
Abstract: ABSTRACT OF THE DISCLOSURE     Flame-retardant composition comprising (1) a novel organic phosphorous compound having a substituent of   where R3, R4 and R5 each is a monofunctional residue selected from a hydrogen atom, a halogen atom, an alkyl or aralkyl group having 1 to 8 carbon atoms, a cyclohexyl group and a phenyl group, on an amino group of an aromatic amino compound and (2) a mixture resin of polystyrene and polyphenylene ether grafted or not with a styrenic compound, said (1) being 2-20% by weight and (2) 80-98% by weight, on the basis of the composition.  The resins of the present invention are useful as raw materials for shaping articles which require flame retardancy.
Patent CA-1079816-A (CA)
Inventor: DAVIS RICHARD K
IPC: H03K4/56
Filed: 1977-08-11
Granted: 1980-06-17
Abstract: ABSTRACT OF THE DISCLOSURE           A generator for generating sawtooth waveforms having equal excursion of predetermined amplitude about a reference level, synchronized in frequency with the zero crossings of an AC signal.  The AC signal is applied to a zero crossing detector whose resulting pulse output is connected to the input of a first integrating amplifier. The latter integrates in a first direction to produce at its output a rapid potential excursion in a first direction to a predetermined amplitude established by a Zener clamping circuit connected across the first integrator.  Upon termination of each zero crossing pulse, a source of DC connected through a resistor to the input of the first integrator, produces integration in a second direction and a gradual change of integrator output in a second polarity direction until the occurrence of the next zero crossing pulse.  The sawtooth output is connected to the input of a second integrating amplifier.  The latter has a long RC time constant in respect to the frequency of the zero crossing detector pulses and provides an error signal output which after appropriate inversion is supplied to the input of the first integrating amplifier to provide the equal bi-polar excursions of the sawtooth waveform.
Patent CA-1100175-A (CA)
Inventor: CARON LAVERNE A
IPC: F02D41/34
Filed: 1977-10-12
Granted: 1981-04-28
Abstract: ELECTRONIC CIRCUIT FOR USE IN A VARIETY OF ENGINE CONTROL SYSTEMS       ABSTRACT             A novel electronic control circuit which may be used in different types of electronic engine control systems is disclosed.          Illustrative usage in various types of electronic spark timing control systems contemplates 4, 6, and 8 cylinder engine config-uratians as well as single or multiple pick ups.  The circuit is intended for fabrication as an integrated circuit device to pro-vide a low-cost unit which is advantageous in mass production usage.
Patent CA-1069357-A (CA)
Inventor: HUMBLE DAVID R
IPC: F16B37/02
Filed: 1978-01-03
Granted: 1980-01-08
Abstract: CLUTCH LOCK     Abstract of the Disclosure A reusable security tag has an enclosure containing an element detectable by independent means and a cruciate sheet metal clutch lock. A pin for piercing a garment is secured at the end of a lever Arm which is hinged to said enclosure for controlled movement into said clutch lock. Said pin is re-leased from said clutch lock by application of a special tool to said enclosure for deforming said clutch lock to spread its jaws.
Patent CA-1103168-A (CA)
Inventor: MITCHELL ROBERT L
IPC: A61K8/21
Filed: 1978-01-24
Granted: 1981-06-16
Abstract: DENTIFRICES CONTAINING AMORPHOUS SILICA            ABSTRACT                Dentifrice containing a compound which provides fluorine, amorphous silica polishing agent and an additive which supplies calcium ions.  The dentifrice is compatible with an unlined aluminum container.
Patent CA-1111093-A (CA)
Title: Explosion prevention in a positive temperature coefficient resistor heater
Inventor: VAN BOKESTAL ANDRE M A
IPC: H05B3/14
Filed: 1978-02-02
Granted: 1981-10-20
Abstract: ABSTRACT:          Self-regulating heating element comprising one or more positive temperature coefficient resistor bodies embedded in a heat-conductive potting composition sur-rounded by a heat conductive casing.  In order to prevent occurrence of explosions in the potting composition, one or more channels are positioned in it within a heat-effective distance from said resistor body, an end of said channel or channels being situated at the surface of the potting composition open to the atmosphere.
Patent CA-1069767-A (CA)
Inventor: SKIPPER KEVIN G
IPC: A01C7/00
Filed: 1978-02-06
Granted: 1980-01-15
Abstract: A B S T R A C T     This invention consists of a tractor drawn planter which automatically deposits equally spaced sprout bearing plugs of specially prepared nutrient soil, into the ground.          It is made of a rectangular framework having two rear wheels upon which it rides and a flexible hitch for attachment to the tractor.  A tank equipped with an agitator, a plug size measur-ing device, and a discharge tube, contains the plug mixture.          Inside, the discharge tube is provided with doors which allow the passage of the plug, at predetermined equal intervals.          These doors are controlled by a spring loaded solenoid which is in turn controlled by electrical make and break contact points powered by the tractor battery.  A floating shoe digs a fur-row into which the plugs are dropped, and two spring loaded converging wheels in the rear of the frame cover and tamp down the seeded furrow.  Rotation is provided to the agitator, the plug measuring device, and the electrical contact points by a train of chain connected sprockets from a takeoff from the rear wheels of the planter.
Patent CA-1111897-A (CA)
Inventor: NOTHMANN GERHARD A
IPC: G03G13/26
Filed: 1978-02-07
Granted: 1981-11-03
Abstract: ABSTRACT OF THE DISCLOSURE    An improved copy system includes a document feeding ap-paratus which is effective to move a document to an imaging station.  An image on one side of the document is then projected on an electrostatically charged sheet to form a first master. The document is then transferred to an inverting mechanism which is effective to turn the document over and return it to the imaging station.  A second master is then formed.  The masters are sequentially transferred to a duplicating section which includes a printing unit.  The printing unit utilizes the masters to print on one side of a sheet of material as it passes through a printing nip.  During a printing operation, blank sheets are sequentially fed from a supply pile through the printing nip and the first master is utilized to print images on first or front sides of the sheets.  The sheets which have been printed on only one side are then sequentially deposited in a hopper.  After the sheets have been printed on one side, the first master is ejected from the printing unit and the second master is transferred to the printing unit.  The sheets which have been printed on one side are then sequentially fed from the bottom of the hopper to the printing unit.  As the sheets again pass through the printing nip, an image correspond-into to the image on the second side of the document is printed on the second or back sides of the sheets. The equipment also exhibits features providing for printing sheets on both sides and for safe handling of the freshly printed sheets without smudging when the duplicator is of a type which employs wet ink in forming the copies.
Patent CA-1110843-A (CA)
Inventor: JOHANSSON GUNNAR
IPC: B05C11/04
Filed: 1978-02-13
Granted: 1981-10-20
Abstract: ABSTRACT     A coating composition is applied to a paper web while the web passes over an opening in a box in which a partial vacuum is maintained.  The opening is divided into two sections by means of a support member disposed perpendicular to the direction of travel of the web.  The coating composition is applied to the web in the downstream section of the opening, and the up-stream section is considerably greater in area than the downstream section to create a tension on the web and thereby eliminate unstretched areas in the web.
Patent CA-1086291-A (CA)
Title: Device for maintaining a vacuum in a compartment of a  rotating member
Inventor: BURNIER PIERRE H
IPC: F16L27/087
Filed: 1978-03-02
Granted: 1980-09-23
Abstract: ABSTRACT OF THE DISCLOSURE        A device for maintaining a vacuum in a compartment of a rotating member includes a collector which is mounted over an orifice of the rotating member.  The collector has an end wall with an annular aperture extending axially of the rotating member.  The aperture is selectively sealed by an annular valve member which permits communication of the compart-ment with a high-vacuum pump.  The valve member may be of a magnetizable material and may be moved axially by a fixed control coil.  Sealing members are provided for sealing the compartment of the rotating member with respect to a fixed member when the compartment is in communication with the vacuum pump.
Patent CA-1119704-A (CA)
Inventor: HOEFGEN GUENTER
IPC: G01S1/38
Filed: 1978-04-05
Granted: 1982-03-09
Abstract: G. Hofgen 21 (Revised) RADIO NAVIGATION SYSTEM     ABSTRACT OF THE DISCLOSURE        An electronic navigation system ground station, which may be either an omni-range beacon (such as VOR) or a passive direction finder.  A circular array of antenna elements has a feed arrangement which includes switched programming of at least one discrete set of phase shifters to effect successively charged phase-rotation fields for minimizing the adverse ef-fects of multipath signals between the ground station and a remote station, aboard an aircraft for example.
Patent CA-1116282-A (CA)
Title: Dispositif de commutation de type matriciel
Inventor: SEMUR PIERRE
IPC: H04B3/00
Filed: 1978-04-20
Granted: 1982-01-12
Abstract: La présente invention est relative à la commutation de signaux à faible niveau et large bande tels que les signaux de transmission téléphonique. Elle concerne un dispositif de commutation dont les points de commutation sont disposés selon un réseau de matrices élémentaires présélectionnées à l'aide de sélecteurs. Elle a pour objet des points de commutation à diodes pour les sélecteurs et pour les matrices élémentaires tels que le fonctionnement des points de commutation des sélecteurs soit asservi à celui des points de commutation des matrices  élémentaires ce qui supprime la nécessité d'une commande particulière pour les sélecteurs. Elle s'applique avantageusement à la technique des transmissions.
Patent CA-1071163-A (CA)
Inventor: HYLAND WILLIAM C
IPC: B65D5/54
Filed: 1978-06-23
Granted: 1980-02-05
Abstract: A B S T R A C T         A poultry container formed from a single blank of paperboard material adhesively joined along a joint comprises two parallel side walls and two parallel end walls disposed perpendicular to the side walls.  The side walls and end walls each include an integral, inwardly foldable bottom flap which provide the container with a closed base portion.  Each end wall has an integral, inwardly foldable end flap.  The end flaps are divided into first and second hingedly connect-ed body portions which when folded provide the end flaps with a two-ply construction.  Each side wall includes an integral side flap which is inwardly foldable over the end flaps to close the container.  Each side flap includes a pair of spaced parallel perforated lines which extend from the free edge of the side flap to the respective side wall connected thereto. The perforated lines divide each side flap into a center por-tion which is disposed between two smaller lateral portions. The container is closed by a pair of closing straps disposed around the container.  Each of the straps is parallel with and disposed outside of one of the perforated lines on the side flaps, and is closely adjacent to one of the perforated lines on the side flap such that each strap serves as a cutting edge whereby the central portion of each side flap may be open-ed along the perforated lines to permit inspection of the poultry within the container.
Patent CA-1102887-A (CA)
Inventor: MIZRAHI ALBERT
IPC: H04Q1/45
Filed: 1978-06-29
Granted: 1981-06-09
Abstract: MULTIFREQUENCY SIGNAL RECEIVER            Abstract of the Disclosure Detection of valid two-out of-N multifrequency signals is realized by employing a microprocessor in conjunction with a controllably adjustable or settable reference threshold level and a plurality of threshold detectors.  Under control of the processor, a reference threshold level supplied to the detectors is set to a first prescribed level.  Upon detection of a tone which exceeds the first threshold level the processor controllably sets the reference threshold level to a second prescribed level.  Detection of two, and only two, tones which are present for at least a minimum prescribed interval are then considered valid.
Patent CA-1104581-A (CA)
Inventor: YAMAMOTO ISAMU
IPC: C08K5/00
Filed: 1978-07-21
Granted: 1981-07-07
Abstract: ABSTRACT OF THE DISCLOSURE There is disclosed a process for preparing organic phosphorus com-pounds, the process including the steps of:  reacting (a) a cyclic halogeno-phosphite expressed by the general formula (I)                     (I) (in which Z is -CH2- or -CH2CH2- and R2 represents a hydrogen atom, a methyl group or an ethyl group when Z is -CH2- and R2 represents hydrogen or a methyl group when Z is -CH2CH2-, and X1 represents a halogen atom), with (b) a cyclic phosphorous acid ester expressed by the general formula II              (II) (in which R1 and Y have the same meanings, respectively as are given for R2 and Z above, and RB represents an alkyl group containing 1 - 4 carbon atoms or a halogenated alkyl group containing 2 - 4 carbon atoms), and (c) acetone in a molar ratio of about 1:1:1; subjecting the resulting reaction product to halogenation to give a compound expressed by the general formula (III)                           (III) (in which RA represents   or   formed on the basis of ring cleavage of the compound of the general  formula (II), RC represents   or   formed by ring cleavage of the compound of the general  formula (I),  X1 of the RA represents the halogen atom derived from the compound of the formula (I), and X2 of the RC represents the halogen atom derived from the halogenation reaction); and esterifying the compound of the general for-mula (III) to give an organic phosphorus compound expressed by a general formula (IV) (IV)   (in which RA, RB and RC have the same meanings as defined in formula (III), and RD represents an alkyl group containing 1 - 4 carbon atoms or a halogenated alkyl group containing 2 - 4 carbon atoms),  The products of the process are useful particularly as fire retardant additives for polyurethane foams.
Patent CA-1106636-A (CA)
Title: Method and structure for flow measurement
Inventor: SMITH JAMES E
IPC: G01F1/78
Filed: 1978-07-24
Granted: 1981-08-11
Abstract: ABSTRACT OF THE DISCLOSURE      Apparatus and method for mass flow measurement utilizing a substantially "U" shaped conduit mounted in a cantilever manner at the legs thereof, an oscillator to reciprocate the conduit, and a sensor for determining the Coriolis force by measurement of the force moment around an axis substantially symmetrical to the legs of the conduit.
Patent CA-1078471-A (CA)
Inventor: HAFNER ERICH
IPC: H03L7/16
Filed: 1978-08-28
Granted: 1980-05-27
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus utilizing single sideband techniques for generating a local oscillator signal of high spectral purity which is offset from a relatively wide-band signal generator frequency fg = 0.8 - 22OMHz by a con-stant IF frequency difference fo = 46KHz.  The output signal is coupled from once of a plurality of phase locked oscillators having overlapping frequency ranges which act as active filters to obtain improved spectral purity.