baber/WOPTO huggingface dataset:
Patent CA-1228050-A (CA)
Inventor: COLEMAN JOHN H
IPC: B01D59/34
Filed: 1978-01-05
Granted: 1987-10-13
Abstract: ABSTRACT A process for separating isotopes of a metallic element compris-ing the steps of preparing a compound consisting of a mixture of isotopes of the metallic element and a chemical moiety selected from the group consisting of organic derivatives, silicon derivatives and deuterated derivatives.  At least one isotope specie of the compound exhibiting a fundamental, overtone, or combination vibrational absorption excitation energy level at a frequency between 900 and 1100 cm-1.  Irradiating the compound with energy at a fre-quency between 900 and 1100 cm-1 to modify differentially properties of at least one isotopic specie of the compound to establish differences in proper-ties of the irradiated isotopic species, thereby facilitating a separation of isotopic species through physical and chemical procedures.  Utilizing the established differences in properties so as selectively to recover an isotopic specie of the metallic element from the irradiated compound.  Apparatus for separating isotopes of a metallic element to provide an isotopically-enriched product, comprising a reaction chamber with controlled temperature and atmospheric composition for retaining a chemical composition including a plurality of isotopic species of the metallic element, and a laser beam im-pinging upon the chemical composition in the chamber to interact with and to modify properties of tile chemical composition so as to facilitate the separation of isotopic components thereof.
Patent CA-1068094-A (CA)
Inventor: ALESSIO LORENZO E
IPC: B23B31/173
Filed: 1978-02-28
Granted: 1979-12-18
Abstract: ABSTRACT       The invention is directed to a chuck for grasping a tool such as a drill bit or the like and adapted to be tightened with the aid of a chuck key. The chuck includes a hollow body defining a longitudinal axis and having a front end for receiving the tool therein. A plurality of elongated jaws are movably mounted in the hollow body. A sleeve is rotatably mounted on the body and threadably engages the jaws to move the jaws in the body to clamp and release the tool whereby substantial radial forces are transmitted to the body by the jaws when the jaws are tightened on the tool. The sleeve extends in the direction of the longi-tudinal axis of the hollow body to surround the hollow body at the region of the jaws for supporting the body against the radial forces. A gear is provided for coacting with the chuck key to actuate the sleeve to move the jaws for tightening the jaws on the tool.
Patent CA-1113572-A (CA)
Title: Priority system for exchanging data between processors
Inventor: EKLUND MATS F
IPC: G06F13/36
Filed: 1978-02-28
Granted: 1981-12-01
Abstract: Abstract of Disclosure:            The invention relates to an arrangement in a computer system for transmitting signals from one processor to one or several other processors connected to the same bus system, so that the signals having priority are trans-mitted without time delay and that the sequence of sig-nals without priority is not changed, each processor con-taining a sender buffer for sending all the signals and a queue buffer for storing signals without priority.          If signals having no priority prevent signals having pri-ority from being transmitted through the bus system because of congestion in the receiving equipment, the arrangement allows said signal having no priority to move from the sender buffer to the first place in said queue buffer. The arrangement includes detecting means which activate a logical circuit when the folowing conditions are fulfilled:     a     the sender buffer is occupied b there is congestion in the receiving device c     the signal in the sender buffer is a signal without priority d     a signal having priority is to be fed into the sender buffer When the logical circuit is activated it delivers an out-put to a control signal circuit which, when activated, produces a signal on a first output and with a slight time delay produces a signal on a second output. The first of said output signals activates gate circuits for moving the contents of the sender buffer into the first place in the queue buffer. The second of said output signals activates a gate circuit for feeding the signal having priority into the sender buffer.
Patent CA-1094168-A (CA)
Inventor: USHAKOFF ALEXIS E
IPC: H01M6/18
Filed: 1978-04-11
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE          The cardiac pacer disclosed herein is of the type in which pulse-generating circuitry is energized by an electro-chemical cell of a type which gives off hydrogen during depletion of the cell, e.g., a mercury battery.  A hermetically sealed case is provided for enclosing both the circuitry and the electro-chemical cell to protect them from body fluids, the case having least one feed-through terminal for coupling pulses generated by the circuitry to a lead adapted for contacting a patient's heart.  A getter is disposed within the case consisting essentially of a solid mass of palladium metal having a thin layer of palladium oxide formed on the outer surface thereof.          A preferred method of forming the palladium oxide is by anodizing the mass of palladium metal in a sulphuric acid bath.
Patent CA-1111103-A (CA)
Inventor: DOUGHERTY THOMAS J
IPC: H01M10/50
Filed: 1978-05-18
Granted: 1981-10-20
Abstract: BATTERY AND BATTERY CONTAINER HAVING    AIR-FLOW PASSAGES THERETHROUGH                      ABSTRACT     A battery and battery container having air-flow passages therethrough.  The container includes partitions separating the cells of the battery, the partitions each being comprised of a pair of spaced apart parallel partition walls defining a narrow generally planar air flow passage between the cells of the battery.  The spaced apart partition walls are integrally joined together at a location adjacent a central portion which includes an aperture to permit intercell welding of adjacent cells.
Patent CA-1087124-A (CA)
Inventor: SOLOMONS GERALD L
IPC: C12N1/14
Filed: 1978-05-31
Granted: 1980-10-07
Abstract: AN IMPROVED FERMENTATION METHOD AND APPARATUS                 Abstract of the Disclosure A method and apparatus for fermentation of a biomass comprises use of a fermenter which has two separate impellers driven at different speeds.  One impeller is used to achieve circulation of the biomass within the fermenter.  The second impeller is used to create a fine dispersion of oxygen fed into the impeller.  Typically, the upper impeller in a cylindrical fermenter of vertical axis is an axial flow impeller producing downward flow and the lower impeller produces radially outward flow.
Patent CA-1112020-A (CA)
Inventor: MILLS HAROLD E
IPC: C05B21/00
Filed: 1978-06-26
Granted: 1981-11-10
Abstract: ABSTRACT    Metal ion impurities are removed from phosphoric acid by adding to the acid a precipitant comprising ions Or calcium and fluorine to cause precipitation Or, for example, a magnesium-containing precipitate.  A preferred precipitant is one containing calcium fluoride, such as the sludge obtained by treating pond water from a phosphoric acid plant with a calcium-containing compound.  Preferably, the soluble sulphate content of the phosphoric acid is maintained at at least about 2 by weight.  An animal feed can be prepared from the precipitate by combining the precipitate with phosphate rock, water, and a sodium-containing compound, and then calcining the combination.
Patent CA-1094133-A (CA)
Inventor: PAGE WILLIAM R
IPC: B60T11/34
Filed: 1978-06-27
Granted: 1981-01-20
Abstract: MODULATING VALVE ASSEMBLY FOR RAILROAD CAR BRAKE CYLINDERS              Abstract of the Disclosure A modulating valve for railroad car brake cylinders to adapt them for operation with composition brake shoes, in the form of an assembly comprising a bracket plate shaped for mounting between the brake cylinder pipe flange type fitting that connects the brake cylinder pipe to the brake cylinder and the cylinder head, and that is arranged for a three point securement to the cylinder head, and a modulating valve mounted on the bracket plate and in communication with the brake cylinder pipe and brake cylinder to limit the fluid pressures supplied to the brake cylinder so that composition brake shoes will deliver the proper brake applying force to the truck wheels without interferring with proper operation of existing brake control equipment.
Patent CA-1124375-A (CA)
Inventor: ROZZI TULLIO E
IPC: H01S5/50
Filed: 1978-07-05
Granted: 1982-05-25
Abstract: 26.6.78                     1            PHN 8850 ABSTRACT          "Semiconductor laser or intensifier".              A semiconductor laser or traveling wave intensifier having an active layer between two passive semiconductor layers, and a strip-shaped electrode geometry. According to the invention the active layer is uniform in thickness, while at least one of the passive layers within the strip-shaped geometry comprises a strip-shaped zone of deviating construction and is built up from portions having different refractive indices n1 and n2. According to the invention it holds that (n1 - n2) (d1 - d2) > O, wherein n1 is the refractive index of the portion which at least within said strip-shaped zone adjoins the active layer, d1 is the thickness thereof within the strip-shaped zone, and d2 is the thickness  thereof beside the strip-shaped zone.
Patent CA-1060830-A (CA)
Inventor: THEIJSMEIJER FREDERIK
IPC: F16G13/06
Filed: 1978-07-18
Granted: 1979-08-21
Abstract: ABSTRACT OF THE DISCLOSURE A block and bar chain of the trolley conveyor type includes a center link having V-shaped bushing inserts at the ends of the link.  The inserts with the center link arc respectively turnable on the pins; the center link is pivot-able on either insert about a separate axis normal to that of the pins.  The improved double flexure of the chain reduces the stress in the chain parts comprising the joint and in turn allows the center link and the inserts in par-ticular to be of a molded plastic construction of the re-quired configuration.  The inserts have pivot and retaining means and their plastic construction permits their "snap-in" assembly.
Patent CA-1118739-A (CA)
Inventor: HATANAKA TAKEFUMI
IPC: B02C18/14
Filed: 1978-11-16
Granted: 1982-02-23
Abstract: Abstract of the Disclosure:    An electrically driven desk-top shredder which comprises a housing, a drive motor secured within said housing, and a shredding mechanism driven by said drive motor.  The shredding mechanism comprises a pair of rotary shafts driven in mutually opposite directions by said motor, a plurality of rotary disks mounted on said rotary shafts and having a plurality of shredding blade about the outer periphery thereof, and a plurality of stationary cutting members each having at least one blade portion that engages with the shredding blade of a respective rotary disk in a gap formed between rotary disks.
Patent CA-1065738-A (CA)
Inventor: MOODY GEORGE W
IPC: F03B13/12
Filed: 1979-01-08
Granted: 1979-11-06
Abstract: ABSTRACT OF THE DISCLOSURE      A device for extracting energy from wave energy and comprising a pluraliy of chambers adapted for pressurising a working gas, and a mechanical device such as an air turbine to which the collected pressurised working gas is conducted to extract energy therefrom and drive a device such as an electric generator.     The chambers are connected together in series relation-ship so that the pressurised working gas from one chamber is collected by an adjacent chamber as it progresses along the series to the mechanical device.
Patent CA-1114822-A (CA)
Inventor: TANAKA YOSHIAKI
IPC: C07D213/65
Filed: 1979-02-06
Granted: 1981-12-22
Abstract: ABSTRACT OF THE DISCLOSURE     2,3,5,8-Tetrahydrofuro- and 5,8-dihydrofuro[3,2-b]-1,8-naphthyridine compounds of the formula (I) (I)   wherein R1 represents an alkyl group having 1 to 6 carbon atoms and M represents a hydrogen atom, an alkali metal or an alkaline earth metal having anti-bacterial activity.
Patent CA-1118913-A (CA)
Inventor: COLBY BRUCE N
IPC: H01J49/14
Filed: 1979-02-21
Granted: 1982-02-23
Abstract: ABSTRACT OF THE DISCLOSURE      A method has been devised whereby material is removed from a solid surface and ionized to produce singly charged monatomic ions representative of the surface.  A sample of the material (or surface) is mounted i place of the repeller electrode of an ion source, biased negatively with respect to the source's block and sputtered with argon ions.  Some of the sputtered sample material is ionized by charge exchange with the argon ions near the ion source's exit slit and accelerated into a mass analyzer.  An electron beam is used to ionize the argon sputtering gas.  This method provides an advantage in that the initial kinetic energy spread of the monatomic ions is much lower than with other methods.  To perform this method, the solid sample is mounted upon a removable probe which is introduced into the ion source or ion chamber of amass spectrometer.  More specifically, the sample is placed in a recessed cavity in the end of the probe located opposite the exit slit of the ion chamber.  In this manner, the nonconductive walls of the probe aid in directing the argon ions perpendicularly onto the surface of the solid sample, thereby increasing the yield of ions which pass through the exit slit.
Patent CA-1135889-A (CA)
Inventor: JOHNSON CALVIN K
IPC: C08L61/00
Filed: 1979-02-28
Granted: 1982-11-16
Abstract: Abstract of the Disclosure Shell process foundry resin compositions contain-ing novolak resins are improved by incorporating therein from about 0.5 to about 10 percent, based on the weight of the resin, of a finely divided, siliceous material such as fumed silica, bentonite, kaolin clay and attapulgus clay. The presence of the siliceous material provides resistance to peelback during the  formation of sand shells and increases the stripping strengths of the incompletely cured molds.
Patent CA-1114913-A (CA)
Title: Capacitive measuring system with automatic  calibration means
Inventor: PISO JOHN S
IPC: G01D3/06
Filed: 1979-04-20
Granted: 1981-12-22
Abstract: ABSTRACT OF THE DISCLOSURE    In a device for continuously monitoring the characteristics of moving filament, such as the denier of an extended synthetic yarn, by passing the filament through a capacitive sensor to develop an electrical signal representing an absolute measurement of the filament with reference to a prescribed datum, the problem of measurement signal drift arising from contamination of the capacitive sensor is obviated by developing compensating signals to be combined with the filament measurement signal.  The compen-sating signals are digitally formed and stored, thereby eliminating drift in the compensating signals themselves.           The compensating signals are developed in an auto-calibration circuit, which receives the measurement signal from the ca-pacitive sensor.  While the sensor is vacant, the he auto-zero circuit digitally counts clock pulses to generate a digital output, converts the digital output into an analog signal varying with the digital count, detects a prescribed com-parison between the analog signal and the input measurement signal, and stops the clock pulse count at a ze? compensat-ing value when the comparison is detected.  Then, the auto-gain circuit applies an unbalanced drive to the sensor, digitally counts clock pulses to generate a digital output, and varies the measurement signal gain with the digital output.  The circuit detects a prescribed comparison between the gain-adjusted measurement signal and a standardized output signal, and stops the clock pulse count at a gain compensating value when the prescribed comparison is de-tected.
Patent CA-1112076-A (CA)
Inventor: VOS JAN
IPC: F16B37/04
Filed: 1979-04-26
Granted: 1981-11-10
Abstract: ABSTRACT:     A drive for a variable-stroke reciprocating engine, comprising a rotatably journalled draft and a plate which is mounted thereon so that the plate cannot rotate with respect to the shaft during operation. The plate is journalled on the shaft so that it is rotatable about an axis of rotation which intersects the centre line of the shaft at an angle. The plate is provided with a first conical gear ring which engages a second conical gear ring provided on a bush which is arranged around the shaft. Means are provided for rotating the bush with the second gear ring with respect to the shaft.
Patent CA-1125866-A (CA)
Title: Resistance welding electrode  with titanium carbide tip
Inventor: VENNE DAVID
IPC: B23K35/02
Filed: 1979-05-03
Granted: 1982-06-15
Abstract: ABSTRACT OF THE DISCLOSURE        Electrodes for use in electric resistance welding are disclosed.  The electrode has a body of copper, beryllium, or other material having a relatively low electrical resistiv-ity and defining a tip surface for contact with a workpiece during welding.  The tip surface is formed by a layer of a material such as titanium carbide having a relatively high electrical resistivity and a degree of high-temperature hard-ness and compressive strength selected to minimize electrode distortion and a degree of oxidation resistance selected to minimize adhesion between the layer and the workpiece during welding.  This form of electrode has been found advantageous in terms of minimizing "pick-up" of workpiece material during welding, and distortion of the electrode.
Patent CA-1155484-A (CA)
Inventor: VAN ALPHEN WILLEM M
IPC: H05K3/08
Filed: 1979-06-21
Granted: 1983-10-18
Abstract: 12.12.1978                  1                   PHN 9171 ABSTRACT:          Method of manufacturing electrode systems and electrode systems thus manufactured.                             A method of manufacturing an electrode system comprising at least two conductors positioned at a predetermined distance from each other by means of insulation materials In order to remove burrs from the facing surfaces of the conductors, the electrode system is immersed in a dielectric liquid and for deburring the conductors an electric potential diffe-rence is then applied between said conductors which is sufficiently large to generate an electric flash-over between the conductors. As a result of the small free path length in the dielectric liquid it is prevented that metal sputtered from the conductors can deposit on the insulating parts of the electrode system. The invention may be used in the manufacture of electron gun systems, colour selection electrodes with post-focusing effect for colour display tubes and printed circuit boards having conductive tracks extending closely beside each other.
Patent CA-1099161-A (CA)
Inventor: JEHN THOMAS C
IPC: F22B21/08
Filed: 1979-07-04
Granted: 1981-04-14
Abstract: Title WATER-TUBE BOILER                   Inventors Thomas C. Jehn Francis J. Roraff Gerald T. Bauers A B S T R A C T     A water-tube boiler (1) of the "D" type is disclosed which includes a water-cooled rear wall com-prising a plurality of vertically disposed riser tubes (14a, b) located at the rear end of the furnace chamber (5).  Novel sealing means are disclosed for sealing the aforesaid rear wall to its adjacent vertically extending walls of the furnace chamber (5) and convection section (7).  A further aspect of the invention lies in the par-ticular feeder conduit means (9, 10, 11, 12, 13) provided for supplying water to the riser tubes of the water-cooled rear wall and also in the particular return conduit means (15a, b; 16a, b) provided for connecting the riser tubes (14a, b) to the steam drum (3).  In yet another aspect of the invention, novel construction is provided associated with the convection section for dis-charging flue gases from the boiler.
Patent CA-1127594-A (CA)
Inventor: KING ARTHUR S
IPC: C25B9/12
Filed: 1979-10-19
Granted: 1982-07-13
Abstract: ROTARY ELECTRODIC TREATER             WITH JET ACTION CLEANING               Abstract of the Disclosure The treater has one of its electrodes rotating within the treating chamber, and the other electrode is specially configured to not only serve as means for cooperating in the production of the electric field, but also to serve as an inlet nozzle for incoming fluid into the treating chamber.          The inlet nozzle of the specially shaped electrode is directed toward the rotating electrode and is located in closely spaced proximity thereto so that the rotating electrode is cleaned by the jet action liquid issuing from the other electrode.     (Docket 16714)
Patent CA-1125933-A (CA)
Inventor: PERCHTHALER HEINZ
IPC: C02F11/123
Filed: 1979-10-23
Granted: 1982-06-15
Abstract: DEVICE FOR THE REGULATION OF A WATER-REMOVING MACHINE     Abstract of the Disclosure This invention relates to a device for regulating a water-removing or drainage machine, particularly a double-sieve sludge drainage machine having a plurality of automatic control means for adaptation thereof to sludges with different drainage properties, com-prising an automatic throughput control means in which a sludge level in a filtering zone serves as an indication for the automatic through-put control means, an automatic flocculant control means adapted to employ shearing strength of a sludge-flocculant mixture as an indi-cation of drainage behavior, and an automatic sleve velocity control means responsive in dependence upon drainage velocity.
Patent CA-1117079-A (CA)
Title: Aerosol dispensing system
Inventor: PONG RICHARD G S
IPC: B65D83/14
Filed: 1979-11-06
Granted: 1982-01-26
Abstract: 27,561 Title:           AEROSOL DISPENSING SYSTEM      ABSTRACT OF THE DISCLOSURE         An aerosol dispensing device for a three phase system which dispenses the product in a uniform fine mist at a high spray rate.
Patent CA-1165594-A (CA)
Inventor: NASH JOHN E
IPC: A61C3/03
Filed: 1980-02-15
Granted: 1984-04-17
Abstract: Abstract of the Disclosure An air-driven dental scaler (10) is disclosed having water transport means for delivering water to a scaling type work tool (26).  The water transport means comprises a tube (103) coaxially disposed within a vibratable hollow shaft (38).  The water tube is supported at one end within a resilient support assembly (110) which pro-vides a water seal between the coaxially disposed vibrat-able shaft (38) and water transport tube (103).  The water seal assembly is positioned forwardly of a vibra-tional node characteristic of a standing wave created during operation of the dental scaler.  An axial force exerted on the water seal assembly (110) during vibration of the vibratable shaft (38) improves the efficacy of the water seal between the shaft (38) and the water transport tube (103),  The single, resilient support for the water transport tube provides for quick replacement of the water tube in the event of clogging of the tube by mineral deposits or sediment.     The invention is also applicable to air- or fluid-driven vibratory devices having non-driving fluid trans-port means associated therewith.
Patent CA-1126773-A (CA)
Inventor: ROSENTHAL MARTIN B
IPC: A63D5/08
Filed: 1980-02-15
Granted: 1982-06-29
Abstract: ABSTRACT           A pinball game contains a plurality of drop target members each mounted for vertical movement between a raised position, above the playfield of the pinball game, and a lowered position below the playfield.  Each target member is maintained in its raised position by a latch, and the target member may be knocked off its latch by impact from a pinball, causing the target member to drop to its lowered position.  A latch may be withdrawn from a supportive position for its target member, causing the target member to drop without having undergone impact by a pinball.  Structure is provided to elevate the target members to their raised positions, and there is a controller programmed to withdraw selected latches following the elevation of the target members.