baber/WOPTO huggingface dataset:
Patent CA-1109275-A (CA)
Inventor: PYRIH ROMAN Z
IPC: C01G43/01
Filed: 1978-09-14
Granted: 1981-09-22
Abstract: URANIUM RECOVERY FROM WET               ROMAN Z. PYRIH PROCESS PHOSPHORIC ACID                 ROBERT S. RICKARD            ORIN F. CARRINGTON     ABSTRACT OF THE DISCLOSURE     Improvement in the process for recovering uranium from wet-process phosphoric acid solution derived from the acidulation of uraniferous phosphate ores by the use of two ion exchange circuits in which in the first ion exchange circuit (a)  the uranium is reduced to the uranous form;  (b) the uranous uranium is recovered by ion exchange using a mixture of mono and disubstituted phenyl esters of ortho-phosphoric acid as the ion exchange agent; and (c) the uranium oxidatively stripped from the agent with phosphoric acid containing an oxidizing agent to convert uranous to uranyl ions, and in the second circuit (d)  recovering the uranyl uranium from the strip solution by ion exchange using di(2-ethylhexyl)phosphoric acid in the presence of tri-octylphosphine oxide as a synergist;  (e)  scrubbing the uranium loaded agent with water; If)  stripping the loaded agent with ammonium carbonate, and (g)  calcining the formed ammonium uranyl carbonate to uranium oxide, the improvement comprising:  (1)  removing the organics from the raffinate of step (b)  before recycling the raffinate to the wet-process plant, and returning the recovered organics to the circuit to substantially maintain the required balance between the mono and disubstituted esters; (2)  using hydogren peroxide as the oxidizing agent in step (c); (3) using sodium carbonate as the stripping agent in step (f) following by acidification of the strip solution with sulfuric acid; (4)  using some of the acidified strip solution as the scrubbing agent in step (e) to remove phosphorus and other impurities; and (5)  regenerating the sodium loaded agent from step (f) before recycling it to the second circuit.
Patent CA-1106259-A (CA)
Inventor: FALK EDWARD J
IPC: B60T8/28
Filed: 1978-10-02
Granted: 1981-08-04
Abstract: LOAD SENSING PROPORTIONING VALVE              ABSTRACT OF THE DISCLOSURE       A valve for use in vehicle hydraulic brake systems for the purpose of limiting the rear wheel brake pressure relative to the front wheel brake pressure in order to reduce the potential for premature rear wheel lock.  The valve includes a proportioning piston which operates to limit the fluid pressure delivered to the rear wheel brakes and an inertia member which senses changes in vehicle loading.  When a vehicle is fully loaded, the inertia member remains in a position where it will disable the proportioning piston and, consequently, the rear wheel brake pressure will be equal to the front wheel brake pressure.  When the same vehicle is unloaded, the inertia member moves in response to deceleration to a position where it will not disable the proportioning piston so that the rear wheel brake pressure will be reduced relative to the front wheel brake pressure.
Patent CA-1110413-A (CA)
Inventor: WADA ISAO
IPC: D21C3/22
Filed: 1978-12-12
Granted: 1981-10-13
Abstract: PROCESS FOR PULPING LIGNOCELLULOSIC MATERIAL              ABSTRACT OF THE DISCLOSURE      Lignocellulosic material is pulped with an alkaline sulfide cooking liquor which is characterized by containing a combination of a delignification-accelerating additive consisting of a quinone compound, hydroquinone compound, 9,10-diketohydroanthracene compound or 9,10-dihydroxy-hydroanthracene compound, and a reducing additive consisting of a sulfite, hydrogen sulfite, thiosulfate or formate.
Patent CA-1109940-A (CA)
Inventor: OBUCH EDWARD A
IPC: H01R4/44
Filed: 1978-12-13
Granted: 1981-09-29
Abstract: ABSTRACT OF THE DISCLOSURE     An electrical clamp assembly of the type for securing electrical conductive elements to an electrical device, such as an electrical terminal, comprises an interconnected clamping plate and screw.  Bearing surfaces between the clamping plate and screw head comprise an anti-friction ball joint.  The ball joint provides a means for converting the entire amount of tightening-torque applied to the screw head to substantially an equivalent amount of clamping force at a clamping surface of the plate by minimizing frictional resistance between the bearing surfaces.  A race-like portion of the ball joint also provides a means for inseparably holding the plate about an unthreaded portion of a partially threaded screw shank without allowing the plate to harmfully abuttingly interfere with the threads of the screw.  A plurality of ribs are disposed on the bottom surface of the plate to form a rhombus-like pattern and to prevent lateral slipping of the conductive wire during torquing of the screw.
Patent CA-1069270-A (CA)
Inventor: DIAL HOWARD S
IPC: B65D85/00
Filed: 1979-01-03
Granted: 1980-01-08
Abstract: ABSTRACT OF THE DISCLOSURE        This invention relates to a method of maintaining a liquid storage reservoir having a floating flexible cover.          A peripheral envelope formed at least adjacent a portion of the peripheral edges of the floatable cover is adapted to be inflated with a compressible fluid, such as air, for proper tensioning of the cover as the level of the stored liquid varies in the reservoir and for preventing wrinkling of the cover.  The peripheral envelope is adapted to be filled with a non-compressible fluid for providing a ballast for the cover while the reservoir is emptied during maintenance operations and the cover is inflatably supported for maintenance of the cover and/or reservoir.
Patent CA-1129508-A (CA)
Inventor: WELTI GEORGE R
IPC: H01P1/12
Filed: 1979-01-24
Granted: 1982-08-10
Abstract: MICROWAVE SWITCHING APPARATUS                 ABSTRACT OF THE DISCLOSURE      A microwave guide switch having a rotor and stator each having ports spaced at 60° intervals and a connecting wave-guide transmission means connected to two ports spaced 120° apart which forms a 3-position, 4-port switch.
Patent CA-1126370-A (CA)
Inventor: STRATTON ANDREW
IPC: F42B3/18
Filed: 1979-02-01
Granted: 1982-06-22
Abstract: ABSTRACT OF THE DISCLOSURE    An electrically ignited load SUCH as a fusehead is connected to the secondary winding of a transformer. The secondary winding is magnetically linked to a primary winding through a magnetic circuit and the transformer is constructed -o as to provide a sub-stantial leakage inductance associated with the secondary winding and effectively connected in series with the load to be ignited.  The structure selectively passes electrical ignition energy to the load only in response to input electrical energy having predetermined magnitude and frequency charac-teristics.
Patent CA-1103425-A (CA)
Inventor: MIASEK PETER G
IPC: C10G49/00
Filed: 1979-02-01
Granted: 1981-06-23
Abstract: ABSTRACT OF THE DISCLOSURE   The present invention relates to the regeneration of an alkali metal sulfide from an alkali metal hydrosulfide, the former being an active reagent for the hydroconversion of sulfur-containing hydrocarbon feedstocks.  More particularly, the present invention relates to the regeneration of an alkali metal sulfide from an alkali metal hydrosulfide by treatment of the hydrosulfide contained in the spent solids from a hydroconversion reactor.  Still more particularly, the inven-tion relates to the regeneration of an alkali metal sulfide, wherein said alkali metal sulfide can be recycled to a hydroconversion reactor for further use therein.
Patent CA-1081698-A (CA)
Inventor: FENSTERMACHER MYK R
IPC: A01N43/40
Filed: 1979-02-21
Granted: 1980-07-15
Abstract: ABSTRACT OF THE DISCLOSURE           Halomethyl substituted dialkoxypyridine com-pounds which correspond to the formula   wherein X and Y represent OR', or trichloromethyl, tri-fluoromethyl, dichloromethyl, dichlorofluoromethyl or chlorodifluoromethyl with the proviso that one of X or Y must be OR' and the other of X and Y is other than OR'; and R and R' each independently represent alkyl of 1 to 12 carbons or alkenyl of 3 or 4 carbon atoms.  These compounds and compositions containing them have been found to be useful as agronomic fungicides, especially useful and valuable for the control of soil-borne plant disease organisms which attack the roots of plants.
Patent CA-1116764-A (CA)
Inventor: JACOB JOSE T
IPC: C02F1/58
Filed: 1979-03-07
Granted: 1982-01-19
Abstract: Reference 5339 DETOXIFICATION OF RESIDUAL QUATERNARIES                 Abstract of the Disclosure Detoxification of residues of quaternary ammonium salt biocides in water, using neutralizing amounts of anionic monomers.
Patent CA-1117967-A (CA)
Inventor: BERNARD ANDRE
IPC: C07F9/141
Filed: 1979-03-22
Granted: 1982-02-09
Abstract: ABSTRACT      "PROCESS FOR THE MANUFACTURE OF ALUMINIUM          MONOETHYL-PHOSPHITE"            The invention provides a process for the continuous manufacture of aluminium monoethyl phosphite (having fungicidal properties) which comprises, in a first stage, preparing a mixture of phosphite compounds, containing at least 70 mol % of diethyl phosphite, in a second stage saponifying and neutralising the mixture with an inorganic base, at a temperature of 20° to 85°C, and a pH of 4.0 to 8.5, optionally removing the ethanol produced by the saponification reaction continuously by distillation and in a third stage, reacting the solution of monoethyl phosphite of the inorganic base, which is continuously produced in the second stage, with a water-soluble aluminium salt in accordance with a double decomposition reaction, at a temperature of 70° to 95°C and a pH of about 3 to 4.5, and continuously withdrawing the precipitate of aluminium monoethyl phosphite which is formed.
Patent CA-1113320-A (CA)
Inventor: DETWEILER CHARLES A
IPC: F02M1/14
Filed: 1979-05-28
Granted: 1981-12-01
Abstract: ABSTRACT OF THE DISCLOSURE         A control motor of the type used to control car-buretor choice valves wherein the motor has an output mem-ber acted on by a pair of springs, one of which is effect-ive to urge the choke valve towards its closed position when the engine is not operating and the other of which resiliently resists opening movement of the choke valve.
Patent CA-1123750-A (CA)
Inventor: JASENSKY RICHARD J
IPC: F16L55/10
Filed: 1979-06-26
Granted: 1982-05-18
Abstract: PROTECTIVE CAP FOR AN EXHAUST PIPE                 Abstract of the Disclosure A temperature responsive protective cap for a gas exhaust pipe.  The cap includes a base portion which is connected to the upper end of the exhaust pipe of an internal combustion engine, and a lid or cover is hinged to the base and can be pivoted between closed and open positions.  A bi-metallic element is interconnected between the base and the lid, and on operation of the engine the increase in temperature in the exhaust pipe will actuate the bi-metallic element to pivot the lid to the open position.
Patent CA-1132859-A (CA)
Inventor: LOVIS JOHN B
IPC: B05C3/12
Filed: 1979-06-28
Granted: 1982-10-05
Abstract: Abstract of the Disclosure A method and apparatus for treating only one side of a strip of material utilizes a pressurized foil bearing. The strip passes around the foil bearing while contacting a bath of liquid material. By controlling the pressure of the pressuring medium used within the foil bearing, the strip is supported on a film of the pressurizing medium and the liquid material is prevented from contacting the side of the strip adjacent the foil bearing while the other side of the strip is in contact with the liquid material. Preferably, the pressurizing medium is at about the same temperature as the liquid material. Furthermore, a non-oxidizing gas may be used as the pressurizing medium to protect the side of the strip adjacent the foil bearing from oxidizing.
Patent CA-1136303-A (CA)
Inventor: VERBAAS GEORGE
IPC: H04Q3/42
Filed: 1979-06-29
Granted: 1982-11-23
Abstract: SWITCHING MATRIX EMPLOYING MAGNETIC LATCHING   REED SWITCHES WITH DOUBLE PATH CAPABILITY                 ABSTRACT             A switching matrix including a plurality of magnetic latching switching devices selectable over horizontal and vertical conductors.  Regulators are provided to limit the current of pulses employed for device selections and an additional regulator shunts a portion of the current during selection of two de-vices to establish multiple paths through the matrix.
Patent CA-1126507-A (CA)
Inventor: KAPELL GERHARD
IPC: F27B7/30
Filed: 1979-08-17
Granted: 1982-06-29
Abstract: ABSTRACT OF THE DISCLOSURE:          A rotatable furnace for refining non-ferrous metals, particularly copper, comprises means for charging liquid metal, and adjoining oxidizing chamber, which is provided with slag-removing means at the shell of the furnace, and a reducing chamber, which communicates through a siphon-like partition with the oxidizing chamber.  To permit the oxidizing and reducing treatments to be carried out within a wide range of the degree of filling of the furnace and to ensure that the refining furnace has a substantial buffer capacity for differ-ences of the rates at which metal is charged and tapped, the metal-tapping means are provided on the shell of the furnace on the same side as the opening for removing slag but below said opening.
Patent CA-1107635-A (CA)
Inventor: FOOTE EARL H
IPC: C02F3/10
Filed: 1979-08-27
Granted: 1981-08-25
Abstract: RANDOMLY DUMPABLE SELF ORIENTING SPIRAL PACKING ELEMENTS     ABSTRACT         Precision molded plastic cellular packing elements (10 and 40) of polygonal and curvilinear spiral shape are provided for mass transfer and effluent treat-ment-apparatus.  Each spiral element (10 and 40 has more than one convolution (16 and 46), a maximum transverse width (W) significantly greater than its axial height (H) whereby it has a greater tendency to orient itself hori-zontally and its relatively shorter wall surfaces substan-tially vertical, angularly spaced ribs (24 - 26)  (52 - 54) which extend from the axis (x) and interconnect the convo-lutions; and wherein adjacent wall portions of the ribs and of the spiral convolutions around open end cells of the element are either in alignment or inclined in one direction, or oppositely inclined relative to one another whereby the element may be provided with either or a com-bination of straight, tapered or oppositely tapered cells.
Patent CA-1125987-A (CA)
Title: Method and support for angularly adjusting a building  element
Inventor: WESTBERG STEFAN
IPC: E04B1/18
Filed: 1979-08-29
Granted: 1982-06-22
Abstract: Abstract In a method of angularly adjusting the position of a building element on a support element, such as a beam on a pillar, there is inserted between the mutually facing surfaces of said elements an insert which is operative to transfer pressure from the building element to the support element via an upper surface in engagement with  a lower support surface on the building element and a lower surface in engagement with an upper support surface on the support element. The two support surfaces and the two engagement surfaces are formed in a manner such that, in use, two of the surfaces are planar and mutually parallel, the third surface is planar but not parallel with the two first mentioned surfaces, while the fourth surface is a curved surface generated by a straight line. The curved surface is caused to lie against the non-parallel surface. The insert is rotated about an axis perpendicular to one of the planar surfaces such as to obtain the desired angular position between the building element and the support element with line abutment between the curved surface and the planar surface adjacent thereto.      Disadvantages hitherto inherent with  the adjustment of building elements on support  structures by shimming or packing methods  are eliminated, and work at excessive height in connection therewith are avoided.      The invention also relates to a support structure and an insert for use therewith.
Patent CA-1134977-A (CA)
Inventor: FUJITA FUMIO
IPC: C08F261/04
Filed: 1979-09-04
Granted: 1982-11-02
Abstract: ABSTRACT OF THE DISCLOSURE A process is provided herein for producing highly water-absorbent hydrophilic gels.  The process comprises polymerizing acrylic acid and/or methacrylic acid in the presence of polyvinyl alcohol to obtain a polymer (A).  Polymer (A) is then subjected to neutralization followed by heat treatment or to heat treatment followed by neutralization.  Alternatively a neutralized product of acrylic acid and/or methacrylic acid may be poly-merized in the presence of polyvinyl alcohol to obtain a polymer (B). Polymer (B) is then subjected to heat treatment.  According to this inven-tion, the polymerization is carried out in an aqueous solution having a total concentration of acrylic acid and/or methacrylic acid or its neutra-lized product (the weight of the neutralized product is converted to the acid basis) and polyvinyl alcohol of 10 to 60% by weight, the heat treat-ment temperature is 50° to 150°C, and the weight ratio of polyvinyl-alcohol to acrylic acid and/or methacrylic acid or its salt (the weight of the neutralized product is converted to the acid basis) is 5 to 95: 95 to 5.  The polymers are hydrophilic gels which can preferably be used as water-absorbent materials or gel materials used in a hydrated swollen state.
Patent CA-1129459-A (CA)
Inventor: NIX EDWIN L
IPC: B60R13/01
Filed: 1979-09-07
Granted: 1982-08-10
Abstract: Abstract of the Disclosure A truck bed liner including an integrally formed bottom wall, front wall and opposed side walls, in which each of the opposed side walls, and preferably the front wall, terminate in top edge portions forming outwardly projecting hook-shaped flanges adapted to snap-fasten over the corresponding top ledges and free rims of the corresponding side walls and front wall of a truck bed within which the liner fits.
Patent CA-1115182-A (CA)
Title: Method of reducing scattered light during  photometric measurement, especially photometric  measurement of haemoglobin and reagent  for performance of the method
Inventor: FREY RAYMOND
IPC: G01N33/48
Filed: 1979-10-05
Granted: 1981-12-29
Abstract: INVENTOR:  RAYMOND FREY            INVENTION: METHOD OF REDUCING SCATTERED LIGHT DURING PHOTO-METRIC MEASUREMENT, ESPECIALLY PHOTOMETRIC MEASUREMENT OF HAEMOGLOBIN AND REAGENT FOR PERFORMANCE OF THE METHOD     ABSTRACT OF THE DISCLOSURE     A method of reducing scattered light during photometric measurements, especially during the photometric measurement of haemoglobin and a reagent for the performance of the method is disclosed.  At a suspension which is ready for a measurement operation there is admixed an  additive which reduces the differ-ence between the refractive index of the suspension and the mean refractive index of the suspended phase.  The reagent for the photometric determination of the haemoglobin comprises a lysising agent, means for modifying the refractive index, means for stabilizing the leukocytes and a solvent.  The reagent is admixed as an additive to a suspension of blood particles in an isotonic solvent.
Patent CA-1104354-A (CA)
Inventor: BEREMAND DONALD G
IPC: F02G1/043
Filed: 1979-10-12
Granted: 1981-07-07
Abstract: ABSTRACT OF THE DISCLOSURE          A free-piston regenerative engine includes a piston chamber having an upper portion, a lower portion and a bottom.          A displacer piston is slidably mounted to move through a stroke within the upper portion of the piston chamber, the displacer piston including a top surface area and a bottom surface area.          The engine also includes the series combination of a heater, a regenerator and a cooler in communication with the piston chamber and being referenced to the top surface area and the bottom surface area of the displacer piston.  An inertial piston is slidably mounted within the piston chamber, and a diaphragm is positioned to move through a stroke at a lower portion of the piston chamber wherein a fluid chamber is defined between the diaphragm and the bottom of the piston chamber, whereby fluid is supplied to and discharged from the fluid chamber in response to movement of the displacer piston.  The displacer piston remains stationary for a predetermined period of time at the end of the stroke to allow the diaphragm to complete its stroke prior to reversing the motion of the displacer piston.          Variation of the predetermined period of time varies the engine frequency and output power.
Patent CA-1110178-A (CA)
Inventor: BECK EARL
IPC: B62D5/06
Filed: 1979-11-01
Granted: 1981-10-06
Abstract: DUAL STEERING SYSTEM FOR OFF-HIGHWAY VEHICLES     Abstract of the Disclosure A dual vehicular steering system with a primary system for normal operation and a secondary system for emergency operation trig-gered by pressure sensitive switching and valving means.  Both systems have in common a pair of single rod hydraulic steering cylinders with each cylinder being connected to a steerable wheel of the vehicle, a vehicular engine and hydraulic fluid stored in a tank.  Cylinder shuttle valves connected to each steering cylinder function as gate devices to separate the primary steering system from the secondary system.           The primary system includes a main pump driven by the engine, a high pressure filter, a priority flow divider to divert fluid in excess of an acceptable flow level, a control valve, an integrated valve package to proportionately regulate fluid flow between the cylinders, and means to direct fluid from the tank to the pump, through the filter, through the priority flow divider, through the control valve, through the integrated valve package and to the steering cylinders.           The secondary system includes a secondary pump, an electric motor driven by the battery to drive the secondary pump, and means to conduct fluid from the secondary pump, through the switching and valving means and to the steering cylinders.  The secondary system also includes an accumulator, pressure sensitive switching and valving means to conduct fluid from the secondary pump to the accumulator, and means to conduct fluid from the accumulator to the steering cylinders.  Steering in the secondary system is accomplished by applying equal pressure to both ends of each steering cylinder thereby locking the cylinders in a single mode and by selectively draining fluid from selected ends of the steering cylinders.  Operator controlled secondary steering switch and valve means operate the selective draim means.
Patent CA-1135985-A (CA)
Inventor: WHITESIDE GEORGE D
IPC: G03B7/16
Filed: 1979-11-09
Granted: 1982-11-23
Abstract: ABSTRACT OF THE DISCLOSURE         A photographic camera control system is provided for varying the time at which a source of artificial illumination is energized subsequent to the commencement of a photographic exposure interval in accordance with variations in the ambient scene light intensity and the camera-to-subject range.  The control system operates to energize the source of artificial illumination at  later times and hence larger aperture values under conditions of insignificant ambient scene light intensity than under conditions of substantially higher ambient scene light intensity for identical camera-to-subject distances.          The control system additionally operates to control the energization of the source of artificial illumination during a photographic exposure interval occurring under conditions of substantially high ambient scene light intensity so that a select portion of the optimum film exposure value may be directly attributable to the ambient scene light while the remaining portion of the optimum exposure value is directly attributable to the artificial scene light provided by the source of artificial illumination.