baber/WOPTO huggingface dataset:
Patent CA-1052730-A (CA)
Inventor: OLSON RICHARD O
IPC: C25B15/00
Filed: 1978-02-08
Granted: 1979-04-17
Abstract: DIMENSIONALLY STABLE ANODE AND METHOD AND APPARATUS FOR       FORMING THE SAME     (Abstract of the Disclosure) The specification and drawings disclose an anode for use in electrolytic cells, as well as a method and apparatus for form-ing the same.  The anode is characterized in that its anode sur-faces are formed from two sheets of metal having the same configura-tion and joined to an anode riser such that all weld joints are symmetrically located relative to the axis of the riser.  The dis-closed method involves a sequence of clamping all components during welding and maintains the various surfaces planar to eliminate war-page.  The disclosed apparatus permits the various steps of the method to be carried out simply and rapidly.
Patent CA-1108737-A (CA)
Inventor: BAUR GUENTER
IPC: A61L9/01
Filed: 1978-02-14
Granted: 1981-09-08
Abstract: Abstract of the Disclosure The present invention relates to an arrangement comprising a light valve, in particular a liquid crystal cell, having a light trap in the form of a fluorescent body which is made from a material having a refractive index greater than 1 and containing fluorescent particles and an auxiliary illumination source. The arrangement according to the present invention provides that the auxiliary illumination source contains a radio-active sub-stance as well as a luminous material adapted to be activated by the substance. The radio-active substance may be selected in particular from among weak .beta.-ray emitters, such as for example tritium. The main field of use of the arrangement is in battery-operated indicating instruments, in particular wrist-watches.
Patent CA-1094828-A (CA)
Inventor: TSUJITA TAKASHI
IPC: B63B39/03
Filed: 1978-03-20
Granted: 1981-02-03
Abstract: FLOATING BREAKWATER               ABSTRACT OF THE DISCLOSURE        A floating breakwater which is of the anchored, pontoon type where the phase differences between the vertical movement of the float body as caused by incoming waves and that of the lateral left-right sway as caused by incoming waves approach each other, so that a floating breakwater with a characteristic left-right sway-reducing tank is obtained.
Patent CA-1081175-A (CA)
Inventor: BOUFFARD JOSEPH A
IPC: B60P3/12
Filed: 1978-04-17
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE     A front wheel drive vehicle having a bed supported by the rear wheels of the vehicle by a pair of jacks.  The jacks cause lowering of the bed rear end to rest on the road surface for embarkation of a dis-abled vehicle on the bed.
Patent CA-1099536-A (CA)
Inventor: NEES JOHN M
IPC: H01M4/68
Filed: 1978-05-16
Granted: 1981-04-21
Abstract: CALCIUM-STRONTIUM-LEAD GRID ALLOY  FOR USE IN LEAD-ACID BATTERIES                     Abstract of the Disclosure A novel calcium-strontium-tin-lead grid alloy is disclosed which exhibits a finer grain structure, higher hardness, improved castability and superior corrosion resistance.
Patent CA-1097335-A (CA)
Inventor: GROSZ-ROLL FRIEDRICH
IPC: B01F5/06
Filed: 1978-05-29
Granted: 1981-03-10
Abstract: A HEAT EXCHANGER HAVING INTERNAL FITTINGS            Abstract of the Disclosure The heat exchanger is constructed with a plurality of fittings which are disposed in the flow passage.  Each fitting is constructed of at least two groups of webs with the webs of each group disposed in spaced parallel relation and in angular relation to the axis of the flow passage.          Also, each group of webs is disposed in crossing relation to the webs of the other group.  The ratio of web width (b) to diameter (d) of the flow passage is in the range of from 0.08 to 0.5 while the ratio of web spacing (m) to the diameter (d) is in the range of from 0.38 to 0.9.  The fittings permit improved heat transfer with reduced pressure losses and a relatively small total area.
Patent CA-1071115-A (CA)
Inventor: REIGHARD ALAN B
IPC: B01D27/10
Filed: 1978-06-01
Granted: 1980-02-05
Abstract: ABSTRACT OF THE DISCLOSURE           An improved combination filter, check valve, relief valve cartridge for use in a hot melt applicator system of the type which includes a reservoir in which the hot melt material is heated and from which it is pumped through a manifold block to an applicator gun.  The cartridge is so constructed that it may be installed or removed from the block as a unit and the filter may be separately removed for cleaning or replacement.  The flow path through the cartridge is from the check valve, into the interior of the filter, through the filter screen to the exterior of the filter, and from the exterior of the filter to the exterior of the cartridge.  The filter comprises a fine mesh filter screen encased within and surrounded by a relatively rigid coarse mesh screen.
Patent CA-1109529-A (CA)
Inventor: BUCK RONALD G
IPC: H05B6/80
Filed: 1978-08-29
Granted: 1981-09-22
Abstract: Abstract A microwave oven sensing system having a humidity sensor and a temperature sensor at an exit ventilation port of a microwave oven heating cavity to sense the exiting humidity and the air temperature of the microwave oven heat-ing cavity is disclosed.  The sensors connect to a pro-grammable controller and input the sensed humidity and temperature of the microwave oven heating cavity to a pro-grammable controller.  Characteristic humidity curves for microwave cooking of different types of foods are stored in the memory of the programmable controller and the programmable controller controls the microwave cooking in accordance with a selected algorithm for the sensed environmental conditions.  A numeric keyboard control panel inputs to the programmable controller the microwave cooking parameters and selects the desired characteristic humidity curve.  The programmable controller may control a microwave power source control circuit and an air exchange circuit according to the selected algorithm in the programmable controller.
Patent CA-1102378-A (CA)
Inventor: GRAHAM RICHARD
IPC: H01H33/66
Filed: 1978-10-20
Granted: 1981-06-02
Abstract: ENCAPSULATED VACUUM SWITCH HAVING IMPROVED             SWITCH ARM SEAL               Abstract of the Disclosure A high dielectric strength seal between the encapsulant and the outwardly projecting actuating arm of an externally operable encapsulated vacuum switch includes a fluid-receiving sealed cavity surrounding the actuating arm between the latter and the encapsulant.  An externally acces-sible valve permits charging of the cavity with a dielectric fluid subsequent to encapsulation of the switch to insure displacement of air from the interface between the encapsulant and actuating arm, thereby greatly reducing the liklihood of corona formation and dielectric breakdown of the seal.  Additionally, the dielectric fluid may be pressurized through the valve to preclude infusion of conductive contaminants into the cavity.  In preferred forms, an accumulator is in fluid com-munication with the cavity to permit thermal expansion and contraction of the dielectric fluid without undesired leakage or cavitation of the liquid.
Patent CA-1107075-A (CA)
Inventor: NIEMAN JOHN R
IPC: C21C7/00
Filed: 1978-10-24
Granted: 1981-08-18
Abstract: Elongate Composite Article Abstract An elongate composite article (10) for treating molten iron has a sintered metal tubular sheath (12) enclosing a core (11) of particulate treating agent. The sintered metal sheath is meltable at about the normal pour temperature of the molten iron.
Patent CA-1123486-A (CA)
Inventor: COLLINS EDWARD J
IPC: G03B15/04
Filed: 1978-10-30
Granted: 1982-05-11
Abstract: PHOTOFLASH LAMP UNIT UTILIZING RADIATION   AND VOLTAGE RESPONSIVE SWITCH DEVICES        ABSTRACT OF THE DISCLOSURE         A photoflash lamp unit is described having a plurality of flash lamps fired individually and in sequence to include a. plurality of switching devices each connected in the electrical circuit so as to interrupt the circuit path to a lamp that is flashed in response to the radiation emitted therefrom but still provide a circuit path to other unflashed lamps in the electrical circuit.  In this manner, the desired firing sequence can be carried out although a particular flash lamp in the electrical circuit fails to fire because of defects other than a before-flash shorted condition and a more reliable switching arrangement is thereby provided.  The construction of said individual combined radiation and voltage responsive switch device comprises a mass of switch material connected in the electrical circuit across spaced apart electrical terminals and which is disposed to receive radiant energy emitted by an associated lamp primarily in a predetermined region of the switch body for thermochemical decomposition: in said region.  Another region in the mass of switch material is simultaneously converted to provide a low resistance path in the electrical circuit.
Patent CA-1114200-A (CA)
Title: Composite tangential and axial exhaust fluid  flowmeter
Inventor: DUNNE CARROLL J JR
IPC: G01F1/06
Filed: 1978-12-06
Granted: 1981-12-15
Abstract: COMPOSITE TANGENTIAL AND AXIAL EXHAUST FLUID FLOWMETER     A B S T R A C T      A composite tangential and axial exhaust fluid flow-meter featuring both tangential and balanced, bidirectional axial exhaust outlets cooperating with a common tangential inlet to a fluid chamber, which encloses a minimum mass of fluid and has an escalloped peripheral wall surrounding a light weight, low mass multi-toothed rotor freely rotatably mounted in the fluid chamber.
Patent CA-1104770-A (CA)
Title: Self propelled drivehead for automatic swimming pool cleaner
Inventor: GIBELLINA MICHAEL C
IPC: E04H4/16
Filed: 1979-02-26
Granted: 1981-07-14
Abstract: ABSTRACT OF THE DISCLOSURE An improved drivehead for an automatic swimming pool cleaning system includes a circular wheel member mounted for free rotation around a platform member.  The platform member carries a water jet nozzle which urges the wheel member into rolling contact with and along the sides of the pool.  A flexible water supply hose connects the platform member to a pressurized pool water in-let.  The water jet nozzle and supply hose cooperate, when the drivehead en-counters an obstruction, to cause the platform member to rotate within the outer wheel member to move the drivehead around the obstruction.  Such a drive-head requires a minimum amount of maintainance, operates reliably, and is "self-freeing" when it encounters an obstruction.
Patent CA-1111263-A (CA)
Inventor: BROWN GEORGE R
IPC: E02D27/52
Filed: 1979-07-17
Granted: 1981-10-27
Abstract: SUBMERGED OFFSHORE STORAGE FACILITY           (D?76,181-FB) ABSTRACT       Underwater liquid storage tank or facility adapted to hold or temporarily store varying quantities of a liquid having a density less than water.  Said liquid can include crude oil and petroleum products.  The facility includes means for maintaining the holding space in a full condition by the addition or removal of water.  Further included is means to avoid inadvertent pollution of the surrounding water through the unintentional discharge of amounts of the less dense liquid which can be carried by water leaving the tank.          Also included is means forming a protective barrier about the liquid holding tank to avoid serious leakage and possible damage to the environment in the event the facility is ruptured by a floating vessel or other object.            (Figure 1)
Patent CA-1118733-A (CA)
Inventor: ARMSTRONG FRANCIS T
IPC: A45F3/00
Filed: 1979-08-13
Granted: 1982-02-23
Abstract: ABSTRACT      A multipurpose rucksack can be opened out into the shape of an elongated rectangle and has an inner lining from which a tent can be erected when the rucksack is opened out with the aid of spacer bars. Conveniently, the rucksack has a pocket to fit over a frame which can be strapped to a wearer and means for receiving the spacer bars whereby the spacer bars can be carried with the rucksack on the frame.
Patent CA-1137979-A (CA)
Inventor: TAKAHASHI SATOJI
IPC: A23L27/30
Filed: 1979-08-20
Granted: 1982-12-21
Abstract: ABSTRACT OF THE DISCLOSURE         A-L-aspartyl-L-phenylalanine lower alkyl ester useful as sweetners are produced in good yield in a process which comprises:  (a)  treating an L-N-(l-methyl-2-lower aliphatic acylvinyl or l-methyl-2-lower alkoxycarbonylvinyl)-aspartic acid or an alkali metal salt thereof with a dehydrat-ing agent in an ornanic solvent containing an acid to pro-duce a corresponding acid anhydride, (b) reacting said acid anhydride with an L-phenylalanine lower alkyl ester, and (c) treating the reaction mixture from (b) with water or an aqueous acid solution to remove the 1-methyl-2-lower aliphatic acylvinyl or l-methyl-2-lower alkoxycarbonyl-vinyl group from the L-N-(l-methyl-2-lower aliphatic acyl-vinyl or l-methyl-2-lower alkoxycarbonylvinyl)-aspartyl-L-phenylalanine lower alkyl ester.
Patent CA-1119201-A (CA)
Inventor: MAKIN EARLE C
IPC: B01D53/22
Filed: 1979-09-18
Granted: 1982-03-02
Abstract: PROCESS FOR METHANOL PRODUCTION            ABSTRACT           An improved methanol synthesis process is provided wherein synthesis gas containing hydrogen and carbon dioxide is passed over a methanol synthesis catalyst, cooled to condense methanol and water in the reacted gas, the liquids separated, a purge gas stream removed while the remaining reacted gas is recycled to the synthesis catalyst, the purge gas separated by contacting the outer surfaces of a plurality of hollow fiber membranes selectively permeable to hydrogen and carbon dioxide to form a permeant gas depleted in hydrogen and carbon dioxide and a permeate gas enriched in said gases and the enriched permeate gas is combined with the synthesis gas.  In an optional embodiment, methanol vapor is first recovered from the purge gas prior to contacting the selectively permeable membranes, preferably by a water scrub.
Patent CA-1131442-A (CA)
Inventor: WAHL RICHARD E
IPC: G09B23/18
Filed: 1979-10-01
Granted: 1982-09-14
Abstract: ELECTRONICS ASSEMBLY EVALUATOR            ABSTRACT        An electronics assembly evaluator for evaluating the skill and knowledge of a prospective electronics assembler.  The evaluator provides the assembler with considerable amount of work to perform in the fabrica-tion of a test circuit and a wire harness while main-taining a completely safe electrical environment inde-pendent of the work performed by the assembler.  The evaluator includes means for determining the accuracy as well as the quality of the work performed.
Patent CA-1136914-A (CA)
Inventor: KOSTINER EDWARD
IPC: G03B27/58
Filed: 1979-10-18
Granted: 1982-12-07
Abstract: ABSTRACT OF THE DISCLOSURE         A photographic enlarging easel is disclosed for posi-tioning and masking photographic paper on a base plate.  The easel allows the paper to be positioned anywhere on the base plate and provides masking blades that are removable and can be moved anywhere on the easel.  The easel has a base plate with a flat surface for the paper, a rectangular open frame formed of four members, each having substantially similar cross sections, the frame pivoted about a pivot line parallel to and extending outside one edge of the base plate, the frame when in the closed position resting on the flat surface of the base plate allowing the paper to extend beyond the base plate.  Paper positioning means are also provided for locating the paper on the base plate, and a plurality of removable carriages each carriage having a masking blade with a first end rigidly attached thereto, each carriage adapted to slide on a carriage track formed integral with each member and extending from side to side of the frame, a second end of the masking blade adapted to slide in a guide slot on an opposite member of the frame, the masking blade resting on the flat surface of the base plate when the frame is in the closed position, each carriage having a locking means to lock the carriage to the member at any position on the track.          The frame has at least two sliding scales in each of two places adapted to measure border widths on four sides of the paper in any location in the frame.
Patent CA-1111660-A (CA)
Inventor: FRANTELLO ALFRED A
IPC: A01G3/06
Filed: 1980-02-25
Granted: 1981-11-03
Abstract: ABSTRACT OF THE DISCLOSURE         An attachment is provided for the lower end of the drive shaft of the motor of a conventional rotary lawn mower, edger, trimmer or the like; and preferably includes two or more nonmetallic cutting lines, such as monofilament fishing line of suitable diameter for rotation therewith in the cutting plane, although a single line may be effective for some purposes. Each nonmetallic cutting line is characterized by possessing an effective diameter, and of a material composition such as to render the line flexible and yielding to the extent that it is substantially incapable of causing damage or injury when contacting persons, animals, trees, etc.  Novel means are provided detachably associating the line or lines to the member carrying it so that the same may be easily and rapidly replaced after wear, and also efficiently stored in suitable length when in the nonworking condition, the same including novel and highly efficient means whereby the effective working length of the line or lines may be lengthened at desired times as it becomes shortened during use, etc.  A simplified form comprises a single spool located in coaxial alignment with the motor shaft, the spool having a single cutting strand centrally wound thereabout so as to present two free travelling ends extending oppositely of each other during the cutting or mowing operation, and or it may be marketed in the form of an attachment for ready substitution, permanent or otherwise, for the horizontally extending metallic cutting bar which is most often furnished as part of the original equipment of rotary lawn mowers.
Patent CA-1149835-A (CA)
Inventor: JOHNSON STEPHEN A
IPC: F16K1/226
Filed: 1980-03-28
Granted: 1983-07-12
Abstract: SEAL STRUCTURE                  Abstract of the Disclosure A sealing structure capable of various uses and part-icularly in butterfly valves having a body with a flow passage and a movable valve disc in the flow passage and having a sealing surface.  The sealing structure is mounted in the body to engage the disc in the closed position of the latter to provide a high performance (i.e. bubble-tight) seal.  The sealing structure includes an annular seal retaining cavity with a slot opening to the flow passage.  The structure includes a seal ring of Teflon PFA or the like retained in the cavity and sealing one axial side of the ring from the other.  It also has a tongue-like extension projecting through the slot into the passage and having a seat at its end engageable with the sealing surface of the disc.          The seal and cavity structures have shoulders normally (in open position of the valve) abutting each other to seal the interior of the cavity (the abutment occurring from expansion of the seal ring into place in the cavity).  When the disc radially moves the tongue and seat it also separates the shoulders.  Radial spaces are normally provided at opposite sides of the ring and the adjacent sides of the cavity.  At the end opposite the slot and tongue the cavity terminates in an anchoring and sealing groove for an extending terminal end of the seal ring.  Inter-mediate the radial spaces and the anchoring groove terminal end are adjacent convergent cavity and ring walls that normally barely abut or are in close proximity to each other.  A core of substantial cross-section is located within the main body portion of the ring.  When the valve is closed the convergent surfaces are engaged, the main body portion of the ring and the core are compressed and expanded to apply a radially directed force to the tongue and seat forcing them against the disc to effect a static seal.  When fluid pressure is applied, the pressure acts in the space at that upstream side between the interior of the cavity and the adjacent exterior of the ring.  This results in the ring and core producing an increased radially directed sealing force against the disc.
Patent CA-1136627-A (CA)
Inventor: ALLEN RICHARD C
IPC: C07D295/26
Filed: 1980-03-28
Granted: 1982-11-30
Abstract: Abstract of the Disclosure The present invention refers to Benzenesulfinamides of the formula   wherein R is pyridyl, phenyl or phenyl substituted by halogen, loweralkyl, loweralkoxy or trifluorcmethyl and the pharma-ceutically acceptable acid addition salts thereof, to a process for the preparation of these compounds and their use as blood pressure reducing agents.
Patent CA-1141329-A (CA)
Inventor: NEEL JEAN
IPC: C08F2/48
Filed: 1980-04-03
Granted: 1983-02-15
Abstract: The thin rubbery layer resulting from the photopolymerization of a thin layer of an aqueous solution of acrylic monomer(s) is face surface coated with a coating of an alkali metal sulfite and/or metabisulfite, and is then shredded, dried and ground to provide acrylic polymer/copolymer from which virtually all residual monomer has been depleted and which is well suited for use as a polymeric flocculant.
Patent CA-1129245-A (CA)
Inventor: JESCHKE WILLI
IPC: B41F21/00
Filed: 1980-04-08
Granted: 1982-08-10
Abstract: ABSTRACT OF THE DISCLOSURE    The invention relates to a sheet-transporting drum in rotary printing presses whereby the freshly printed sheet is placed upon the surface of the drum.  In order to avoid smearing the printing ink, a cushion of air is produced,  by means of a jet of air between the sheet to be transported and the surface of the drum, the entire surface of the said sheet resting upon the said cushion of air.  Only a small amount of air is required to build up this cushion, and it may be used for papers of all thicknesses, up to cardboard.  The said cushion is built up by means of air-nozzles which direct the flow of air into an area between the surface of the drum and the sheet, the said cushion of air being built up by the resulting ram pressure.
Patent CA-1134895-A (CA)
Inventor: TYLER DAVID O
IPC: H01K3/16
Filed: 1980-06-16
Granted: 1982-11-02
Abstract: SEALED BEAM LAMP AND                   METHOD OF MANUFACTURE          Abstract of the Disclosure:      In a lamp assembly having a rearwardly extend-ing annular boss on the rear of the reflector about an opening in the reflector, a terminal socket sealed to the rear surface of the boss, said socket having a central portion through which the lamp terminals extend into the reflector and are sealed, an annular dish shaped portion integrally formed with the central portion extend-ing outwardly and transversely to the longitudinal axis of the lamp assembly, sealing compound between the ad-jacent surfaces of the boss and the dish shaped portion of the terminal socket, the width of the dish shaped portion being larger than the width of the seating surface of the boss to enable free sliding movement therebetween for adjustment of the light source with respect to the reflector in the up-down and sideways directions, this and longitudinal sliding of the terminals being performed prior to the setting of the sealing compound.
Patent CA-1130200-A (CA)
Title: Down hole pump with bottom receptor
Inventor: HODGES EVERETT
IPC: E21B10/44
Filed: 1980-06-27
Granted: 1982-08-24
Abstract: DOWN HOLE PUMP WITH   BOTTOM RECEPTOR Abstract of the Invention A tool for slurrying and recovering minerals, including bitumen, from a single bore hole by hydraulic mining and jet  pumping to the surface in which the tool includes conduits for pumping water into a venturi throat, a generally concentric bottom inlet to the venturi throat and a collection device below the venturi for lifting mineral into the venturi.  The tool additionally includes means for selectively adjusting the distance between the screw and venturi throat to vary the proportion of suction applied to the bottom and side inlets to the venturi thereby accommodating variations in slurry concentrations and density.