baber/WOPTO huggingface dataset:
Patent CA-1279887-C (CA)
Title: Tape element and methods, for heating, pressure measurement and circuit fabrication
Inventor: LOVELL WALTER C
IPC: G01L1/18
Filed: 1987-07-10
Granted: 1991-02-05
Abstract: Tape Element And Methods, For Heating, Pressure Measurement And Circuit Fabrication ABSTRACT    Ordinary inexpensive magnetic recording tape is used to create a novel resistance element which may be made pressure sensitive to perform a number of tasks involving robot finger control intrusion alarm systems, and portable weighing scales.          A pressure insensitive resistance element is also used as an efficient, inexpensive heating tape element, or to make precision resistors having little bulk, and resistive networks which may be customized by a user.
Patent CA-1307129-C (CA)
Inventor: GOEDECKE HARTMUT
IPC: G01N29/00
Filed: 1987-07-21
Granted: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus for the measurement and non-destructive material testing  of  laid  pipelines in the form of a  scraper  moved through  the  pipeline and guided on the inner wall  thereof, has  at  least one circular support with sensors arranged  on the  circumference  thereof and at least  one  pressure-tight casing,  which  has devices for processing and recording  the measured  values  and  the power supply. In order  to  ensure that  the sensors are always at the minimum constant distance and with a constant angular position with respect to the pipe wall, the support is constructed as a cylindrical sleeve made from  a  rubber  elastic  material and is  provided  with  an axially,  radially  and  circumferentially  regular  profile, whose  protuberances  are located on a  cylindrical  envelope surface  with  a somewhat larger external diameter  than  the internal  diameter  of the pipeline and in whose  depressions the  sensors  are  arranged on a surface  concentric  to  the envelope  surface. The sleeve is attached by universal  joint to the trailing end of the scraper.
Patent CA-1338895-C (CA)
Inventor: BOSIES ELMAR
IPC: C07F9/6539
Filed: 1987-07-29
Granted: 1997-02-04
Abstract: Alkyldiphosphonic acid derivatives of the general formula:                                   (I) wherein Het is a heteroaromatic five-membered ring con-taining 2 to 3 heteroatoms which can be partly hydro-genated and optionally substituted one or more times by alkyl,  alkoxy,  phenyl  cyclohexyl,  cyclohexylmethyl, halogen  or  amino,  whereby  two  adjacent  alkyl  sub-stituents can together also form a ring, X is a hydro-gen atom, a hydroxyl group or an amino group optionally substituted by lower alkyl and R is a hydrogen atom or a lower alkyl radical, with the proviso that Het is not a  pyrazole  ring;  as  well  as  the  pharmacologically acceptable salts thereof, are useful in the treatment of calcium metabolism disturbances, for example, treat-ment of osteoporosis; processes for the preparation of the compounds and pharmaceutical compositions contain-ing them are also described.
Patent CA-1333912-C (CA)
Inventor: JONCKERS KEES
IPC: C07C239/00
Filed: 1987-10-30
Granted: 1995-01-10
Abstract: The invention relates to a process for concentrating a urea solution passing as a film along the inside of the tubes of a vertical tube bundle the heat required being substantially generated by condensation of a gas mixture in an area provided around the bundle of tubes, the gas mixture being supplied to the area near one end of the tube bundle and the urea solution to the other end of the tube bundle, and being passed substantially up-wards through the heating area and it is ensured that the gas mixture or condensate cannot flow back.  The invention also relates to an apparatus for carrying out the process wherein the heating area is divided into compartment by means of horizontal baffles allowing an upwardly directed flow of the gas mixture and the condensate.  In this way heat generated from the process flow is utilized.
Patent CA-1284556-C (CA)
Title: Process for controlling pulp bleaching systems
Inventor: SEYMOUR GEORGE W
IPC: D21C9/10
Filed: 1987-11-20
Granted: 1991-06-04
Abstract: Abstract of the Disclosure Control of pulp and water flow rates out of a bleaching tower in a multistage pulp bleaching process wherein each stage comprises a bleaching tower and a washing drum, comprises the steps of (a) measuring total weight of pulp composition per square meter on at least one washing drum and from such measurement and the speed of rotation and area of the washing drum surface and the consistency of pulp composition, determining the total weight per unit time of pulp and of water coming out of the bleaching tower previous to said washing drum, and (b) controlling the rate of pulp and water flow out of said previous tower based on the determination of the total weight per unit time of pulp and of water as determined in step (a), and (c) controlling the amount of bleaching chemical flow to the pulp going to any following stage to match the pulp flow rate as determined from the measurement of step (a) and the percentage of bleaching chemicals to be applied.  Step (a) is readily carried out utilizing a backscatter nuclear radiation gauge or capacitance measuring instrument or a microwave cavity perturbation apparatus.  The result is a more uniform rate through the process and improved control over bleaching chemicals addition.
Patent CA-1333284-C (CA)
Inventor: CLOUGH JOHN M
IPC: C07D207/333
Filed: 1987-12-15
Granted: 1994-11-29
Abstract: Compounds of formula:       and stereoisomers and salts thereof, wherein R1 and R2, which are the same or different, are optionally substituted alkyl; V is oxygen or sulphur; Y is hydrogen, optionally substituted alkyl, cyano, nitro or halogen, X is  ,        ,          or      ;               A          Z is NoR5 or C   B; A is CO2R6, COR7 , cyano, nitro or acylamino; Bis hydrogen, optionally substituted alkyl, optionally substituted aryl, CO2R8, COR9, cyano, nitro or acylamino, or A and B together form a ring containing one or more heteroatoms; R4 is CO2R3 or R17; R12 is OR13, SR14, NR15R16 or R18; R3 is optionally substituted alkyl; and R5 to R11 and R13 to R18, which are the same or different, are hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted aralkyl, optionally substituted aryl or optionally substituted heteroaryl, or R10 and R11 or R15 and R16 together with their adjacent nitrogen atom join to form a saturated ring (except that R10 and R11, together with their adjacent nitrogen atom, do not form an unsubstituted piperidine ring when R1 and R2 are both methyl, Y is hydrogen and V is oxygen) optionally containing one or more heteroatoms in addition to the nitrogen atom.  The compounds are useful as fungicides and also as plant growth regulators, insecticides, nematocides and miticides.
Patent CA-1277050-C (CA)
Title: Snap-on network interface unit
Inventor: DICKEY LARRY W
IPC: H04M1/24
Filed: 1987-12-16
Granted: 1990-11-27
Abstract: SNAP-ON NETWORK INTERFACE UNIT            Abstract Apparatus inserted in series in a transmission line connecting subscriber equipment with a telephone central office and which apparatus is responsive to test signals from the central office to determine whether a fault is located on the office side of the subscriber side of the apparatus is enclosed in a housing. A plurality of leads from the apparatus project through an opening in the housing and are connected to electrical terminals of a connector block. The housing, in one embodiment, has two spaced apart ribs which are lodged between tabs of fanning strips which are located on both sides of the terminals. One of the ribshas an end with a larger width than the rest of the rib so that end projects inward from the fanning strip and prevents accidental dislodging of the housing from the connector block. In a second embodiment, the housing is supported by at least one tab from one fanning strip. Testing of the terminals is effected bypivoting the housing without disturbing connection of the leads to the terminals.
Patent CA-1295443-C (CA)
Title: Vehicle restraint using both linear and pivotal movement
Inventor: ERLANDSSON KJELL I
IPC: B65G69/00
Filed: 1988-01-26
Granted: 1992-02-11
Abstract: Abstract Of The Disclosure An improved vehicle restraint for preventing movement of a vehicle such as a truck away from a load-ing dock during a loading operation.  The vehicle res-traint includes a guide frame mounted on the front face of a loading dock and a vehicle restraining means is movable on said guide frame from a lower storage posi-tion to an upper operative position where it engages the ICC bar on a truck.  A biasing mechanism serves to bias the restraining means upwardly to the operative position while a power operated drive mechanism acts to drive the restraining means downwardly to the storage position.  The restraining means includes a slide or carriage that moves on the guide frame and a hook that is pivoted to the slide.  A linkage connects the frame and the hook in a manner such that the force of the biasing means will not only move the slide upwardly on the guide frame but will also pivot the hook upwardly relative to the slide.
Patent CA-1286053-C (CA)
Title: Shower and bath tub
Inventor: JOHANSSON HANS A V
IPC: A47K3/00
Filed: 1988-03-17
Granted: 1991-07-16
Abstract: ABSTRACT            A shower and bath tub is adjustable into an upwardly in-clined position (A), whereby the tub has a seat (35) on which a person (41) may sit when the tub is in its up-wardly inclined position. The seat has two sitting surfa-ces (36a, 37a) on opposite sides of a forwardly open space (38). In order to prevent faeces from the person sitting on the seat from ending up in the tub, and prevent showe-ring water when showering the abdomen of said person to gather in the tub and/or flow out on the floor, the space (38) may receive a basin (42), which is removable from the space, for collecting faeces from said person (41), and communicates with an outlet (50) which may be opened to permit discharge of showering water flowing down through the space from the tub (1) when said tub is in its up-wardly inclined position (A) and the abdomal parts of a person sitting on the sitting surfaces are showered by means of the shower (64).
Patent CA-1293994-C (CA)
Title: Low temperature coefficient shunt for current measurement
Inventor: BULLOCK DONALD F
IPC: G01R19/00
Filed: 1988-03-17
Granted: 1992-01-07
Abstract: LOW TEMPERATURE COEFFICIENT SHUNT      FOR CURRENT MEASUREMENT              ABSTRACT OF THE DISCLOSURE     A current sensor employs a main resistor of a low temperature-coefficient material for producing a voltage drop proportional to a load current therein. A second resistor, also of a low temperature-coefficient material, and preferably having a resistance substantially exceeding that of the main resistor, is connected in parallel with the main resistor.  The current divides between the main and the second resistors according to the ratio of their resistances.  An output signal, reduced at least in accordance with a ratio of resistances of the first and second resistors, is obtained from the second resistor.  Resistive heating of the main resistor is reduced by using a short path length in the direction of current flow and as large an area transverse to the direction of current as possible.  A current transformer may employ the second resistor as a primary to step down further the current in the output signal.
Patent CA-1323733-C (CA)
Inventor: BESSEY CHARLES M
IPC: C23C8/04
Filed: 1988-03-17
Granted: 1993-11-02
Abstract: ABSTRACT OF THE DISCLOSURE      A method and composition for stopping-off nitrogen and/or carbon diffusion into metal surfaces.  The composition, which is a mixture of a refractory material selected from the group of zirconium and aluminosilicate, sodium silicofluoride and sodium silicate, is coated onto the metal surface where diffusion is to be prevented.  The mixture is cured and the metal part is subjected to elevated temperatures for carburizing, nitriding, or carbonitriding. The coating prevents nitrogen and/or carbon diffusion at the coated area.  After treatment the coating is removed.
Patent CA-1314144-C (CA)
Title: Apparatus for the on-line treatment of degassing and filtration of aluminum and its alloys
Inventor: PIRAS LEONARDO
IPC: C22B21/06
Filed: 1988-04-14
Granted: 1993-03-09
Abstract: ABSTRACT OF THE DISCLOSURE:           Apparatus for one-line degassing and filtering aluminum  and  its  alloys,  constituted  by  a  thermally insulated container body,  provided with a removable lid incorporating heating means for heating the metal to be processed, said container body being internally subdivided, by means of a vertical partitioning wall into two chambers communicating with each other only in the nearby of the bottom  of  the  container,  wherein  in  one  of  said  two chambers, provided with an inlet for the liquid metal to be processed, injection means are provided, for injecting inert or active gases, or both, which are so located as to perform a degassing in countercurrent relatively to the entering metal stream, whilst at the bottom of the second chamber at least a substantially horizontal plate, or wall is provided, made of a porous material, such as ceramic, graphite, or the like, which is positioned spaced apart from the bottom of the container, such to allow the metal, coming from the first chamber, to flow upwards, and pass through said porous plate, with a rising movement of laminar type.
Patent CA-1325194-C (CA)
Inventor: BERTAUD YVES
IPC: C25C3/34
Filed: 1988-04-20
Granted: 1993-12-14
Abstract: The invention concerns a process for the electrolytic preparation of a mother alloy of iron and neodymium by the reduction of a mixture comprising at least one reactive oxygen-bearing compound of neodymium in a bath of molten halides with at least one metallic cathode, preferably of iron, and a carbon anode. In accordance with the invention, the bath is primarily formed by a mixture of molten fluorides whose decomposition potential is close to that of NdF3 or more negative, such as for example NdF3, MgF2, ScF3, CeF3, LaF3, BaF2, CaF2 and SrF2, and permitting solubilization of the oxides by a complexing effect, the solute to be reduced is formed by a mixture of salts primarily containing a reactive oxygen-bearing compound of neodymium which is very rapidly soluble in the molten electrolyte. The working temperature is in a range of from 640 DEG  to 1030 DEG C., the anodic current density is from 0.1 to 1.5 A/cm2, and the cathodic current density is between 2 and 30 A/cm2.
Patent CA-1299396-C (CA)
Title: Gear synchronizer for power transmission
Inventor: INUI NASAKI
IPC: F24F1/00
Filed: 1988-05-09
Granted: 1992-04-28
Abstract: TITLE OF THE INVENTION             GEAR SYNCHRONIZER FOR POWER TRANSMISSION                ABSTRACT OF THE DISCLOSURE                In a gear synchronizer, a clutch sleeve has internal splines in continual engagement with external splines of a hub member fixed to a shaft and is axially shiftable to be engaged at its internal splines with external splines of a splice piece integral with a gear member rotatable on the shaft. The gear synchronizer includes a support ring encircling the spline piece and having a radial projection axially movable in a corresponding radial recess in the spline piece, a first synchronizer ring couples with the support ring and having an external conical surface for frictional engagement with an internal conical surface formed on one side of the clutch sleeve, a second synchronizer ring axially movably coupled with the first synchronizer ring for relative rotation and coupled with the support ring for rotation therewith and having an internal conical surface for frictional engagement with an external conical surface formed on the one side of the clutch sleeve, and an annular waved spring disposed between the synchronizer rings. In shifting operation, the second synchronizer ring is brought into frictional engagement with the external conical surface of the clutch sleeve against the waved spring after frictional engagement of the first synchronizer ring with the internal conical surface of the clutch sleeve.
Patent CA-1311277-C (CA)
Title: Torche a plasma et micro-ondes et dispositif la comportant
Inventor: LABAT JEAN-LUC
IPC: H05H1/46
Filed: 1988-06-10
Granted: 1992-12-08
Abstract: La présente invention concerne une torche a plasma micro-ondes caractérisée en ce qu'elle comporte au moins une conduite d'amenée de gaz; une cavité résonnante formant autour de ladite conduite un manchon ouvert du coté de la sortie de ladite conduite et comportant une ouverture latérale; une structure coaxiale de transition perpendiculaire au manchon comportant d'une part un tube externe raccordé à l'ouverture latérale du manchon et d'autre part un organe interne dont l'une des extrémités est au contact de ladite conduite et dont l'autre extrémité est au contact de la face externe d'un guide d'onde et porte une pièce de transition disposée dans le guide d'ondes; ledit guide d'onde d'alimentation en énergie microondes à section rectangulaire et perpendiculaire à la structure coaxiale étant pourvu d'une ouverture où est raccordé le tube externe de la dite structure; une alimentation en gaz de gainage dans le guide d'onde et/ou la structure coaxiale et/ou le manchon, éventuellement un dispositif d'accord; et éventuellement un dispositif d'allumage du plasma. Elle concerne également un dispositif et un procédé pour la fabrication de poudre.
Patent CA-1289052-C (CA)
Title: Gas hotplate burners
Inventor: HOMER DAVID W
IPC: F23D14/26
Filed: 1988-09-16
Granted: 1991-09-17
Abstract: ABSTRACT (Figure 1) A gas burner comprises a burner skirt 1 supporting a burner head 5 provided with combustion ports 6.  A plate 9 notched at the edges allows part of the combustion mixture to escape round the bottom of the burner head and burn to form a retention flame below the main combustion ports 6.  The flow of gas to the retention flame is metered by metering apertures formed by the bottom of the burner head and the notches in the plate 9.     This construction allows the skirt to be made simply and inexpensively from materials such as mild steel, and to be vitreous enamelled, without sacrificing accuracy of metering of the supply to the retention flame.
Patent CA-1330476-C (CA)
Inventor: ARCHIE WILLIAM A
IPC: D06M101/16
Filed: 1988-09-22
Granted: 1994-07-05
Abstract: IMPROVED METHODS AND COMPOSITIONS TO ENHANCE       STAIN RESISTANCE OF CARPET FIBER     ABSTRACT OF THE INVENTION This invention relates to improved methods and compositions to enhance stain resistance of carpet fiber. The improved methods relate to a continuous aftertreatment for dyed carpet fabric and to two-step processes, either batch-batch, batch-continuous or continuous-continuous. The improved compositions are used in the processes to enhance stain resistance of carpet or carpet fiber and to overcome various prior drawbacks, such as, yellowing, oxidation and durability to cleaning.  The sulfonated aromatic condensates are used to enhance stain resistance, and can be combined with fluorocarbon compounds for soil resistance, thiocyanates, and/or salts having divalent cations, such as magnesium sulfate.  Also various dispersing agents, buffering acids and sequestering agents are disclosed.
Patent CA-1309182-C (CA)
Title: Expert system with natural-language rule updating
Inventor: SKEIRIK RICHARD D
IPC: G05B13/02
Filed: 1988-09-28
Granted: 1992-10-20
Abstract: EXPERT SYSTEM WITH NATURAL-LANGUAGE RULE UPDATING  ABSTRACT    An expert system for process control, which permits the inference rules to be revised at any time without requiring the specialized skills of a "knowledge engineer." The inference rules are initially defined by a domain expert who fills in blank fields in a set of highly constrained substantially natural-language templates. The rule set thus specified is automatically translated to define an operational expert system. Updating can be performed by a domain expert at any time: the set of templates with the data fields as originally entered is redisplayed, so that the domain expert can edit the accessible fields and then command the modified rule set to be automatically translated, to define a modified operational expert system.
Patent CA-1304837-C (CA)
Title: Inflatable bed
Inventor: PECK WILLIAM H
IPC: A61G7/047
Filed: 1988-10-13
Granted: 1992-07-07
Abstract: ABSTRACT   This invention is concerned with an improved air bed system.  In this invention  the bed occupant can control the firmness of the bed.  Two inflatable bladders are used with a pre-set pressure differential  between them.  The pressure in the lower bladder is always kept high enough to prevent bottoming of a bed occupant.  The pressure in the upper bladder can be adjusted by the occupant to his or her own personal comfort level.  The invention may also include various medical  devices which are fluid powered  thus taking advantage of the presence of the pressurized working fluid.  The invention may further include a warning circuit which senses the departure of an occupant from the bed and generates a warning signal in response thereto.
Patent CA-1304311-C (CA)
Title: Pipelinable syncrude from heavy oil
Inventor: BUCHANAN JOHN S
IPC: C10G9/00
Filed: 1988-11-01
Granted: 1992-06-30
Abstract: ABSTRACT OF THE DISCLOSURE    A process for preparing a pipelineable oil from a heavy crude oil by thermally treating the oil in the absence of added hydrogen, and under sufficiently severe conditions to induce the formation of an upgraded, low viscosity oil phase and a liquid asphalt phase that contains dispersed coke.  The reaction is conducted under pressure sufficient to retain in the reactor most of the normally liquid hydrocarbons, under which conditions the two phases are readily separated and recovered solely by gravity settling.  The process is readily adapted to oil field use with skid mounted units.  The severity is adjusted to provide sufficient asphalt which, when burned, furnishes the steam required for production of the heavy crude oil.
Patent CA-1302502-C (CA)
Title: Rotatable contactless antenna coupler and antenna
Inventor: PHILLIPS JAMES P
IPC: H01Q1/44
Filed: 1988-11-10
Granted: 1992-06-02
Abstract: ABSTRACT          A rotatable contactless RF signal coupler, which couples RF signals between an antenna and an RF signal processor in a portable radio, along with an antenna capable of operating in two mode is described herein.    Specifically, the signal coupler includes a transformer that is primarily located within the hinge formed by the housing of the radio and a rotatable flip portion.          Substantially constant inductive coupling is  maintained in the coupler regardless of rotation.  The antenna is capable of operating in a narrow band and a wide band mode to afford antenna operation through varied conditions.