baber/WOPTO huggingface dataset:
Patent CA-1169261-A (CA)
Inventor: CONANT LOUIS A
IPC: A47J36/04
Filed: 1981-01-14
Granted: 1984-06-19
Abstract: ENERGY SAVING HEATING VESSEL                       Abstract A fluid heating vessel adapted for heating its contents by contact with a surface heater such as a "hotplate" or heating platen is disclosed.  The described vessels typically have a heating rate 2 to 5 times faster than a conventional glass vessel while consuming about 1/2 as much energy. The vessel includes glass or plastic sidewalls of low thermal conductance and a composite bottom.  The bottom has a high heating surface contact area and includes an impervious inner layer and an outer layer of high thermal conductance, preferably of a graphitic material.  The vessel can be made in a variety of shapes adapted for use in laboratory, domes-tic service, and industrial applications.
Patent CA-1151058-A (CA)
Inventor: LORENZO ROBERTO
IPC: C21D1/09
Filed: 1981-02-04
Granted: 1983-08-02
Abstract: ABSTRACT OF THE DISCLOSURE A method of hardening the surface of steel work pieces is disclosed wherein the work piece is first treated with a solution to cause the blackening thereof and subsequently subjected to a laser beam for a time sufficient to raise the surface temperature thereof into the austenitic phase.
Patent CA-1183898-A (CA)
Inventor: SCHWEITZER EDMUND O JR
IPC: G01R31/00
Filed: 1981-05-13
Granted: 1985-03-12
Abstract: FAULT INDICATOR HAVING INCREASED   SENSITIVITY TO FAULT CURRENTS             Edmund O. Schweitzer, Jr.             Abstract of the Disclosure A fault indicator for indicating the occurrence of a fault current in an alternating current conductor includes a pair of parallel-spaced reed switches in magnetic communi-cation with the conductor.  The reed switches are electri-cally connected in parallel by a magnetically conductive bridging element at one end of the pair and by a non-magneti-cally conductive bridging element at the other end of the pair.  A permanent magnet bridging the non-magnetic bridge establishes a magnetic bias circuit which extends serially through the switches to increase the sensitivity of each switch to a fault current during a respective half-cycle of the alternating current cycle.
Patent CA-1168352-A (CA)
Inventor: TATAMI MITSUSHIGE
IPC: H04N9/465
Filed: 1981-06-15
Granted: 1984-05-29
Abstract: APPARATUS FOR INDICATING THE PHASE OF THE COLOR   SUBCARRIER SIGNAL IN EACH LINE OF A COLOR            TELEVISION SIGNAL     ABSTRACT OF THE DISCLOSURE         Apparatus is provided for indicating the phase of the color subcarrier signal present during each line of a color television signal so as to identify whether that line is odd or even.  A phase detector detects the phase of the color subcarrier signal at a predetermined time following the occurrence of the horizontal synchronizing signal.  The actual time at which the phase of the color subcarrier signal is detected is adjusted by an automatic phase adjustment circuit which senses relative phase shifts between the horizontal synchronizing signal and the color subcarrier signal.  Preferably, the phase detector is a sampling circuit which samples the color subcarrier signal at a sampling time which is adjustable by the automatic phase adjustment circuit to as to cancel relative phase shifts between the sampling time and the color subcarrier signal.
Patent CA-1167789-A (CA)
Inventor: BAST BERNARD J
IPC: B29C63/30
Filed: 1981-06-24
Granted: 1984-05-22
Abstract: SMOOTH-LINED CORRUGATED PIPE AND METHOD FOR MANUFACTURE            Abstract of the Disclosure A smooth, plastic-lined corrugated pipe having an intermediate layer of plastic foam.  The pipe is made by internally coating a corrugated pipe with a foaming mixture and pressing an expandable cylinder of plastic sheet liner against the foaming mixture until the foam solidifies.  An expandable mandrel apparatus presses the plastic sheet liner into position.
Patent CA-1173547-A (CA)
Inventor: DE WAARD PETER J
IPC: H01S5/00
Filed: 1981-06-25
Granted: 1984-08-28
Abstract: PHN 9781                       .14.                   27.2.1981 ABSTRACT "Semiconductor laser"     pn-laser with double hetero junction comprising a strip-shaped semiconductor contact layer (4) which is present on a passive layer (2) of the same conductivity type, with a highly doped zone (14) of said same conductivity type which extends over at least a part of the thick-ness of the contact layer (4) and beside the contact layer in the passive layer (2) so as to increase the radiation mode stability. According to the invention the highly doped zone (14) extends only over a part of the thickness of the said passive layer (2) in such manner that below and beside the contact layer (4) a difference arises in effective refractive index of at least 0.0005 and at most 0.005.
Patent CA-1180537-A (CA)
Inventor: MARTIN JOHANNES JOSEF
IPC: F23C99/00
Filed: 1981-07-07
Granted: 1985-01-08
Abstract: Abstract of the Disclosure A combustion apparatus has a combustion chamber which is divided into combustion zones respectively communicating with individual mixing zones of a mixing chamber.  Combustion air enters the mixing zones and then flows into the combustion  zones.  The concentration of NOx in the combustion products of each of the combustion zones is measured and water vapor is fed into each mixing zone in an amount which depends upon the NOx  concentration for the corresponding combustion zone.  The amount of water vapor fed into a mixing zone is such as to maintain the combustion temperature below a value at which substantial quantities of NOx are formed.  The water vapor is fed into the mixing zones generally countercurrent to the combustion air entering the com-bustion zones and the water vapor and combustion air flow into the combustion zones together.
Patent CA-1145200-A (CA)
Inventor: DALLAIRE JEAN-GUY
IPC: F42B12/48
Filed: 1981-07-08
Granted: 1983-04-26
Abstract: Abstract of the Disclosure The invention disclosed relates to an improved artillery training shell.  A one-way valve means is provided in the base of the shell to exhaust' smoke from a spotting charge.
Patent CA-1159192-A (CA)
Inventor: JONES RUFUS S
IPC: C08G2/24
Filed: 1981-07-28
Granted: 1983-12-20
Abstract: ABSTRACT OF THE DISCLOSURE A process for the production of high molecular weight oxymethylene copolymer in the presence of impurity is provided.          The process provides a high molecular weight oxymethylene copoly-mer having a predetermined comonomer content.  The process com-prises the steps of determining the optimal catalyst concentra-tion in a first oxymethylene copolymerization system which contains less than approximately 10 p.p.m. impurity; determining the concentration of impurity containing at least one active proton in a second copolymerization system; adjusting the catalyst concentration in the second copolymerization system so that the total concentration of catalyst and impurity in the second copolymerization system is maintained at the optimal concentration of catalyst in the first copolymerization system; and adjusting the concentration of comonomer in the second copolymerization system so as to maintain the predetermined comonomer content in the oxymethylene copolymer product.
Patent CA-1165137-A (CA)
Inventor: CORREA ADERBAL C
IPC: G01N33/18
Filed: 1981-08-26
Granted: 1984-04-10
Abstract: Abstract of the Disclosure Method and apparatus for detecting the presence of hydro-carbons and other substance that fluoresces or absorbs light within a body of water which utilizes a controlled submersible vehicle scanning at or near the water bottom.  The method uti-lizes a selected frequency light source as carried by the sub-mersible to scan the water bottom, and the returned light energy, either at the wavelength of oil fluorescing in water or the source frequency backscatter, is detected and processed for the water bottom as well as a water region that is a selected distance above the water floor.  Alternative forms of apparatus are dis-closed for carrying out the functions of both oil fluorescence detection, and for obtaining differential absorption readings as to light source backscatter energy that is created by the ambient water and other factors in the water environment such as marine life, turbidity, etc.
Patent CA-1153397-A (CA)
Inventor: MOTOKI HIDEO
IPC: C04B28/24
Filed: 1981-10-30
Granted: 1983-09-06
Abstract: COMPOSITION FOR PREPARING INORGANIC FOAMED BODIES     ABSTRACT:         A composition for preparing inorganic foamed bodies which comprises a water-soluble silicate of alkali metal and/or ammonium, a metallic blowing agent, a hardening agent for the silicate, and a foaming stabilizer as active components.  Foamed bodies having outstanding properties can be prepared from the com-position without application of heat or pressure.
Patent CA-1179100-A (CA)
Inventor: GUTHRIE JAMES L
IPC: C08G18/48
Filed: 1982-01-21
Granted: 1984-12-04
Abstract: Abstract of the Disclosure An MDI based polyurethane foam having cellulose foam properties is produced by mixing together an aqueous phase which can optionally contain reinforcing fibers and surfactants and a resin phase comprising a prepolymer derived from n poly(oxy C2-4 alkylene)diol, an MDI containing isocyanate product having a functionality greater than 2.0 made of a mixture of MDI and isocyanate containing derivatives of MDI, and a monomeric polyol cross-linking agent having 3 or 4 hydroxyl equivalents per mole.  The preferred polyol is trimethylolpropane and the preferred diol is Carbowax?1000.  The diol and the polyol, such as trimethylolpropane, are present in a mole ratio in the range of 4:1 to 8:1 while the ratio of the isocyanate equivalents to the total hydroxyl equivalents is in the range of 3:1 to 41.  The isocyanate containing product comprises more than 50% by weight of the prepolymer and Isonate?143L is the preferred isocyanate product.  The foam has a minimal swell when wet and it does nut curl upon drying.
Patent CA-1180835-A (CA)
Inventor: KAWAI YOICHI
IPC: C08L23/02
Filed: 1982-02-18
Granted: 1985-01-08
Abstract: Abstract of the Disclosure An electroconductive polyolefin composition comprising (1) 100 parts by weight of a polyolefin resin, (2) 10 to 60 parts by weight of carbon black, (3) 0.1 to 6 parts by weight of sulfur and (4) at least 0.1 part by weight of one or two specified accelerators, and option-ally containing 5 to 60 parts by weight of atactic polypropylene.
Patent CA-1182364-A (CA)
Inventor: FETTWEIS EWALD
IPC: A61F5/01
Filed: 1982-04-06
Granted: 1985-02-12
Abstract: ORTHOPEDIC DEVICE FOR TREATING HIP DISPLEASURE               AND HIP LUXATION              ABSTRACT OF THE DISCLOSURE     An orthopedic device for hip displeasure or hip luxation has a pelvic basket, two thigh holders, two thigh-guiding members connected with the thigh holders and the pelvic basket and a universal joint provided between the pelvic basket and the thigh-guiding members, located in the region of the natural hip joint, and having a moveable joint part arresting in each angular position.
Patent CA-1185206-A (CA)
Inventor: MUELLER BRUCE M
IPC: B65D51/14
Filed: 1982-04-20
Granted: 1985-04-09
Abstract: ABSTRACT OF THE DISCLOSURE           A dimensionally stable plastic canning ring for secur-ing vacuum sealing lids to food containers during processing is fabricated of thermoplastic material reinforced with fibers.  The fibers are circumferentially aligned in the plastic media whereby the canning ring exhibits thermal expansion which is lowest in the direction of fiber align-ment, i.e., circumferentially.  The circumferential thermal coefficient of expansion substantially matches that of a glass container with which the canning ring is utilized.          Due to the similarity of thermal coefficients of expansion, relative dimensional differences between the plastic ring and the glass container occurring during processing are negligible.  The ring is manufactured by an injection molding process.   The mold cavity includes a single gate disposed generally adjacent its periphery.  Injection of the plastic and fiber material into the mold through the single gate causes laminar circumferential flow about the mold cavity and alignment of the fibers with the circumferential flow streamlines.
Patent CA-1179922-A (CA)
Inventor: DUTRIEUX JEAN
IPC: A01D33/06
Filed: 1982-04-28
Granted: 1984-12-27
Abstract: ABSTRACT OF THE DISCLOSURE     Device for discharging leaves or stems of plants for use in an agricultural machine comprising cutting means and a receptor spout receiving cut leaves or stems, said spout having a conveyor screw moving therein through a driving shaft, on an extension (18) of said shaft (16) there is fixed a paddle-wheel (19) provided in a discharge space (17) disposed coaxially of the transport screw (15) and having a substantially greater diameter than that of the spout (14), said discharge space (17) being provided with a tangential outlet (26) which may be oriented by turning said discharge space (17) with respect to the periphery of the spout (14) so as to achieve either vertical or horizontal discharge of cut leaves or stems.
Patent CA-1186447-A (CA)
Inventor: IDEL KARSTEN
IPC: C08G75/06
Filed: 1982-05-20
Granted: 1985-04-30
Abstract: PROCESS FOR THE PREPARATION OF POLYARYLENE SULPHIDES          Abstract of the Disclosure High molecular weight p-polyarylensulfides having a high melt viscosity, capable of being processed thermo-plastically, and have good mechanical properties are pro-duced by reacting components a), b), and c) in a polar solvent with a molar ratio of a) : c) in the range of 0.85:1 to 1.15:1 and a molar ratio of c) : lactam  in the range of 1:2 to 1:15, for a time of up to 10 hours at a temperature of from 160°C to 300°C, and in the pre-sence of from 2 to 100 mole percent, relative to c), of an N,N -dialkylcarboxamide;       wherein component a) is dihalogenobenzene with 50 to 100 mole percent of the formula   and 0 to 50 mole percent of the formula   wherein X is fluoro, chloro, bromo or iodo, and R is the same or different and each is selected from the group consisting of hydrogen, alkyl having 1 to 20 carbon atoms, cycloalkyl having 5 to 20 carbon atoms, aryl having 6 to 24 carbon atoms, alkaryl having 7 to 24 carbon atoms, aralkyl having 7 to 24 carbon atoms, and two R moieties linked together forming aryl having 6 to 24 carbon atoms or a heterocyclic moiety having an oxygen, nitrogen or sulphur hetero-atom and having 6 to 24 carbon atoms; with the proviso that at least one R is not hydrogen;      component b) is 0.1 to 2.4 mole percent, relative to the dihalogenobenzene, of a polyhalogenoaromatic of the formula ArXn wherein Ar is aryl or a heterocyclic moiety having an oxygen, nitrogen or sulphur heteroatom with said aryl and said heterocyclic each having from 6 to 24 carbon atoms; X    is fluoro, chloro, bromo or iodo; and n is 3 or 4; and component c) is alkali metal sulphide.
Patent CA-1174118-A (CA)
Inventor: SCOGGINS TOMMY D
IPC: F23J1/04
Filed: 1982-05-31
Granted: 1984-09-11
Abstract: ABSTRACT           The invention presented herein consists of an ash recept-acle having an internal storage chamber for holding fireplace ashes or the like.  A first hingeable door is provided through which ashes can be deposited and a second door is available through which the ashes are removed.  An internal baffle is posi-tioned within the housing to prevent dust from escaping through the first door as ashes are being deposited and a slanted rear wall allows the ashes to slide towards the storage chamber.
Patent CA-1149704-A (CA)
Inventor: GENESE JOSEPH N
IPC: A61M5/14
Filed: 1982-06-04
Granted: 1983-07-12
Abstract: ABSTRACT         A valve for controlling the flow of liquid has a housing divided into first and second chambers by an air and liquid impermeable, flexible diaphragm.  The second chamber has an air vent through the housing arranged so as to prevent the flow of liquid therethrough, an inlet and an outlet with the outlet being normally closed to air and liquid by the diaphragm.  Liquid entering through the inlet under sufficient pressure to fill the second chamber contacts and exerts pressure against substantially all of the second chamber side of the flexible diaphragm to hydrostatically lift the diaphragm away from the outlet to thereby allow liquid to exit from the valve until liquid no longer fills the second chamber, whereupon the diaphragm will return to its normal position to again close the outlet to air and liquid.
Patent CA-1173896-A (CA)
Title: Densified edge seals for fuel cell components
Inventor: DECASPERIS ANTHONY J
IPC: H01M4/86
Filed: 1982-06-09
Granted: 1984-09-04
Abstract: DENSIFIED EDGE SEALS FOR FUEL CELL COMPONENTS              ABSTRACT OF THE DISCLOSURE    A porous fuel cell component, such as an electrode substrate, has a densified edge which forms an improved gas seal during operation when soaked with electrolyte.          The edges are made from the same composition as the rest of the component and are made by compressing an increased thickness of this material along the edges during the fabrication process.
Patent CA-1191807-A (CA)
Title: Procede pour la valorisation des coupes tres riches  en cycloparaffines
Inventor: JUGUIN BERNARD
IPC: C10G69/08
Filed: 1982-06-30
Granted: 1985-08-13
Abstract: L'invention concerne un procédé de production d'un effluent liquide, renfermant, en poids, au moins 75% d'hydrocarbures aromatiques, à partir d'une charge constituée d'un naphta en provenance de produits pétroliers lourds ou en provenance d'une zone de fractionnement des huiles obtenues par liquéfaction du charbon par hydrogénation, ladite charge distillant entre environ 25 et 230.degree.C, renfermant au moins 70%, en poids, d'hydrocarbures naphténiques et contenant au moins un composé choisi dans le groupe constitué par les composés sulfurés, les composes azotés et les composés oxygénés, cette charge ayant en poids une teneur d'au moins 1000 ppm, exprimée en soufre, de composés sulfurés, et/ou une teneur d'au moins 1000 ppm, exprimée en azote, de composés azotés et/ou une teneur d'au moins 2000 ppm, exprimée en oxygène, de composés oxygénés, caractérisé en ce que (a) la charge est soumise à un hydrotraitement réalisé de façon à abaisser la teneur en composés sulfurés à une valeur comprise entre environ 60 et 500 ppm, (valeur exprimée en soufre), et/ou la teneur en composés azotés à une valeur comprise entre environ 40 et 100 ppm (valeur exprimée en azote) et/ou la teneur en composés oxygénés à une valeur comprise entre 500 et 1500 ppm (valeur exprimée en oxygène), et (b) en ce que l'effluent d'hydrotraitement est envoyé directement dans une zone de déshydrogénation où il est traité en présence d'un catalyseur de déshydrogénation dont la chaleur de neutralisation par adsorption d'ammoniac est inférieure à 40 joules par gramme sous 300 mm de mercure (300 x 133,322 Pa). Ce procédé permet ainsi d'améliorer l'indice d'octane d'une coupe naphta en provenance de produits pétroliers lourds.
Patent CA-1201946-A (CA)
Inventor: NYMAN KARL-ERIK
IPC: E21B4/06
Filed: 1982-07-12
Granted: 1986-03-18
Abstract: ABSTRACT Method and apparatus for drilling deep holes in the rock or the like. The apparatus is adapted to be attached to the end of a drill string (1) and be sunk to the bottom of the bore hole (27). The apparatus comprises a pilot control unit (B), a hydraulic engine (12), a hydraulic pump (16), an impact apparatus (21) and a drill bit (23). Drilling mud which is fed down through the drill string to flash up the cuttings drives the hydraulic engine which is of a robust construction and will withstand the abrasive drilling mud. The output shaft (15) of the engine drives the hydraulic pump which pumps high grade hydraulic fluid to the impact apparatus which is a hydraulically driven hammer rock drill of known construction. The impact piston strikes against the drill bit. The whole apparatus is rotated by means of a rotary machine placed on the ground level. Due to the pilot control unit (B) the apparatus only has to carry its own dead weight and openings and valves provide a bypass and stopping, respectively, of the drilling mud (Fig. 1).
Patent CA-1177182-A (CA)
Title: Television tuning system with electronic frequency adjustment apparatus
Inventor: KNIGHT STANLEY P
IPC: H03J3/28
Filed: 1982-09-07
Granted: 1984-10-30
Abstract: RCA 77,204 A B S T R A C T           A television (TV) receiver tuning system for selecting one of a plurality of receivable TV channels comprises a frequency selective radio frequency device including trimming elements for receiving TV signals, a local oscillator controlled by a first control signal and a mixer in which the TV signals and the local oscillator signal are heterodyned to develop an intermediate frequency signal.  A first control device develops the first control signal in response to the selection of a TV channel to control the local oscillator frequency so that the mixer shifts the selected TV channel signal to the IF frequency.  A second control device including a PROM trims the frequency selectivity of the RF device using its trimming elements unaffected by selection of the TV channel whereby mechanical alignment of the TV tuning system can be avoided.  In other aspects of the invention, the second control device develops signals for adjusting tunable circuits in the IF amplifier, for adjusting the tracking of the local oscillator frequency in relation to its control signal, and, in a double-conversion tuner, for adjusting the frequency of a second local oscillator.
Patent CA-1218492-A (CA)
Inventor: GRUNEWALDER JOHN F
IPC: B27K3/50
Filed: 1982-09-30
Granted: 1987-02-24
Abstract: ABSTRACT OF THE DISCLOSURE Water repellent treating compositions are based upon olefin and paraffin materials containing a substantial proportion of compounds contain-ing from 20 to 24 carbon atoms.  The treating compositions are especially useful for application to wood.  Additives such as wood preservatives, alkyd resins and, in especially preferred compositions, organic ionizable compounds are included.  The preferred compositions are useful for application to wood substrates which are subsequently electrostatically sprayed with a topcoating.
Patent CA-1187723-A (CA)
Inventor: BERKOVITZ HARRY
IPC: F16H55/50
Filed: 1982-10-15
Granted: 1985-05-28
Abstract: ABSTRACT OF THE DISCLOSURE           A sheave  for  guiding  and  supporting  stranded wire rope.  The sheave includes a plurality of circumfer-ential  grooves,  with treaded elastomeric  inserts being disposed  in  the  grooves.   The  walls  which define  the treads are disposed at a predetermined angle relative to the circumferential axis of the insert, selected such that they will be substantially perpendicular to the longitud-inal axis of a strand,  as each strand of the wire rope contacts and extends across a tread.  The treads are thus fully compliant with the incremental changes in strand length due to the differential in rope tension on the two sides of the sheave.
Patent CA-1185488-A (CA)
Inventor: VERSLUIS JAN
IPC: B63B22/00
Filed: 1982-10-29
Granted: 1985-04-16
Abstract: A B S T R A C T        SINGLE-POINT MOORING SYSTEM FOR TRANSFERRING FLUIDS      The single-point mooring system comprises a central element adapted to be anchored by means of anchor cables and a rotatable element rotatably connected to the central element. The rotatable element comprises an open beam structure connected to a large diameter outer ring, to which foam-filled fenders are secured. Preferably the fenders act as floats. An important advantage of this arrangement is that, when a ship moored to the system hits the system, the risk of damage to the ship or to the single-point mooring system is substantially reduced as compared to the conventional single-point mooring systems. (Fig. 2).