baber/WOPTO huggingface dataset:
Patent CA-1127185-A (CA)
Inventor: KUNZ NANCE D
IPC: C07C67/00
Filed: 1980-05-01
Granted: 1982-07-06
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to an improvement in a process for preparing toluene diamine. The improvement resides in a process which is capable of permitting reduction of dinitrotoluene to toluene diamine without prior alkaline treatment for removal of nitrocresols in the dinitrotoluene. In carrying out the improvement the feed dinitrotoluene is water washed to remove HNO3 to a level below 6000 ppm, and the catalytic conversion of dinitrotoluene to toluene diamine is done continuously. Dinitro-toluene is charged to a reaction vessel containing a liquid carrier and reduced with hydrogen at constant pressure, the dinitrotoluene being added at a rate to maintain a concentration of dinitrotoluene of 0.0001 to 25% by weight of the total reactor contents while the hydrogenation catalyst is maintained at a level from about 0.1 to 3% based on the weight of reactor contents.
Patent CA-1150638-A (CA)
Inventor: AKAGIRI KENZO
IPC: H03G7/00
Filed: 1980-05-22
Granted: 1983-07-26
Abstract: GAIN CONTROL CIRCUIT FOR NOISE        REDUCTION SYSTEM     ABSTRACT OF THE DISCLOSURE           An input gain control circuit for an audio signal recorder includes a first transmission path for compressing an audio signal supplied thereto and having a variable gain ampli-fier and a control circuit which supplies a control signal to the variable gain amplifier for varying the gain thereof, a second transmission path for transmitting the audio signal with substantially unity gain through a resistor thereof, and an adding amplifier for adding the compressed audio signal from the first transmission path and the audio signal with substantially unity gain from the second transmission path whereby the com-pressed audio signal is effectively transmitted for recording when the level of the audio signal is below a predetermined value and the audio signal with substantially unity gain is transmitted for recording when the level of the audio signal is above the predetermined value.  A complementary output gain control circuit substantially recreates the original audio signal when the above recorded signal is reproduced.
Patent CA-1137005-A (CA)
Inventor: KESSICK MICHAEL A
IPC: F17D1/17
Filed: 1980-06-06
Granted: 1982-12-07
Abstract: ABSTRACT OF THE DISCLOSURE Heavy crude oils are transported by pipeline from deposit location to a remote upgrading location by emulsify-ing the crude oil using deaerated sodium hydroxide solution, conveying the oil-in-waker emulsion through the pipeline, and recovery of the oil from the oil-in-water emulsion by inverting the emulsion and dewatering the resulting water-in-oil emulsion.  The emulsion inversion may be effected using slaked lime, resulting in recovery of a substantial proportion of the sodium hydroxide used in the initial emulsi-fication.  The sodium hydroxide solution may be recycled by a separate pipeline for reuse or treated for discharge.
Patent CA-1144157-A (CA)
Inventor: MACHIDA YOSHIMASA
IPC: C07D311/22
Filed: 1980-06-11
Granted: 1983-04-05
Abstract: Abstract of the disclosure:    Novel cephalosporin compounds of the general formula:                               wherein R1 represents a substituted or unsubstituted nitrogen-containing heterocyclic-thio group, R2 represents hydrogen or hydroxy, and R3, R4 and R5 each represents hydrogen, hydroxy or acyloxy, and their salts, and processes for the preparation thereof.  The novel compounds and their salts have antibacterial activity.
Patent CA-1148015-A (CA)
Inventor: HORN KLAUS
IPC: G03C1/00
Filed: 1980-06-19
Granted: 1983-06-14
Abstract: Abstract of the Disclosure this invention relates to an improvement in a photopo-lymerizable copying material comprising a layer support and a photopolymerizable copying layer with a bare surface, the copying layer containing a polymeric binder, a compound having at least two terminal ethylenically unsaturated free-radically polymerizable groups, a photoinitiator for initiating the free-radical polymerization, and a finely divided pigment, the im-provement  that the average particle size of the pigment corre-sponds at least to the thickness of the copying layer.
Patent CA-1144201-A (CA)
Inventor: WIESE WINFRED J
IPC: F16J15/34
Filed: 1980-06-25
Granted: 1983-04-05
Abstract: IMPROVED MECHANICAL SEAL ASSEMBLY Abstract:     A mechanical seal assembly adapted to be associated with a rotatable shaft (2) and a housing (14,90) and having a rotatable seal ring (16) and a stationary seal ring (10), each having seal faces (30,32) which engage seal faces (26,28) on a central seal ring (20), the latter seal ring being centered only on its outer diameter and being free to rotate relative to the other seal rings thus reducing the speed at the seal faces to the intermediate speed.  An aspect of the disclosure is a double spring system (34,68) wherein seal ring means associated with a shaft and a housing are urged toward one another.
Patent CA-1139466-A (CA)
Inventor: WEIR DONALD R
IPC: C01G28/02
Filed: 1980-08-22
Granted: 1983-01-11
Abstract: ABSTRACT OF THE DISCLOSURE           A process for removing arsenic from an aqueous solution containing arsenic in the form of a soluble arsen-ate includes adjusting the pH of the solution if necessary to at least about 10, adding a soluble barium salt to precipitate arsenic as barium arsenate, and removing the precipitated barium arsenate from the solution.
Patent CA-1139339-A (CA)
Inventor: ROTH ADRIAN W
IPC: H01H33/82
Filed: 1980-09-05
Granted: 1983-01-11
Abstract: ABSTRACT OF THE DISCLOSURE        The gas blast switch of the invention has a resting and a movable contact piece mounted in a housing.        The latter is divided into two parts, by a blasting nozzle, which is arranged to become open as the movable contact piece passes through same during the opening of the switch.          At its intake side the nozzle communicates connected with an arcing enclosure, and on the outlet side with a blasting enclosure.  In order to better adapt the pressure buildup in the arcing enclosure to the current to be interrupted, said arcing enclosure communicates with at least one pressure storage enclosure.  The pressure storage enclosures are closed by intake relief valves and outlet relief valves.          The threshold pressures of the intake relief valves are graded and adapted to the pressures corresponding to given values of the current to be interrupted.  The discharge surge of the pressure storage enclosures flows through the outlet relief valves as soon as the movable contact piece has been retracted from the blasting nozzle.
Patent CA-1147250-A (CA)
Title: Power operated wheelchair
Inventor: MACKINTOSH CHARLES
IPC: A61G5/04
Filed: 1980-09-23
Granted: 1983-05-31
Abstract: IN THE UNITED STATES PATENT AND TRADEMARK OFFICE     APPLICATION OF              CHARLES MACKINTOSH     FOR     POWER OPERATED WHEELCHAIR     ABSTRACT OF THE DISCLOSURE     A wheelchair assembly includes an occupant seat having a central shaft for mounting the seat on an under-carriage for universal tilting movement,for vertical move-ment along the shaft axis and for rotation about such axis. the undercarriage has a plurality of ground engaging wheels driven together by a driving mechanism which includes a drive motor and steered together by a steering mechanism which includes a steering motor.  The steering motor may be operatively connected with both the seat and the wheels for turning them together by operation of a control assem-bly, or the steering motor may be operatively connected with only the seat or with only the wheels for independent operation.  otherwise, the steering mechanism may couple the seat with the wheels while the steering motor is dis-connected so that wheel steering may be operated by a manual turning of the seat.  An analyzer assembly compares the direction of travel chosen by the seat occupant to the actu-al orientation of the wheels and then directs the steering motor to align the wheels to the direction chosen, without turning the chair.  And, the seat is automatically tilted toward a direction opposite that to which, it tends to lean when the wheelchair moves up an incline or down a decline.
Patent CA-1158460-A (CA)
Inventor: CLEGG MAURICE A
IPC: H01F1/06
Filed: 1980-09-25
Granted: 1983-12-13
Abstract: ABSTRACT OF THE DISCLOSURE           A process for producing cobalt-rare earth alloy powders suitable for forming into permanent magnets in-cludes mixing cobalt powder particles having refractory oxide dispersoid powder particles fixed in the surfaces of the cobalt particles with particles of a rare earth element in a proportion corresponding to the composi-tion of the alloy to be formed.   The mixture is heated to cause the cobalt/dispersoid particles and the rare earth particles to form the desired alloy by diffusion with substantially no sintering.
Patent CA-1152655-A (CA)
Title: Automatic insertion equipment
Inventor: MAXNER RICHARD B
IPC: H01R43/00
Filed: 1980-12-09
Granted: 1983-08-23
Abstract: ABSTRACT OF THE INVENTION A cut-clinch mechanism with a movable knife that is arranged to be slidably attached to a piston rod 80 that when the cutting edge of the knife engages a lead-in wire, a sensor will be contacted to indicate the lead-in wire is in a proper position for cutting and clinching.
Patent CA-1148220-A (CA)
Inventor: UEDA SHIGEKI
IPC: F24C1/00
Filed: 1980-12-19
Granted: 1983-06-14
Abstract: Abstract of the Disclosure A heating apparatus, such as an electric oven or a micro-wave oven, comprises an enclosure or case having therein a heating chamber in which an object may be heated or cooked, a door closes an opening of the chamber, and the door has a locking means, to lock the door when closed.  A door lock releasing means, such as a lever and a solenoid plunger, to release and open the door from the locking state of the locking means are also provided.  A voice recognition circuit recognizes voice commands of a user of the apparatus and produces inter alia a control signal which drives the releasing means to open the door.
Patent CA-1119649-A (CA)
Inventor: GRENIER AIME J
IPC: H01H71/12
Filed: 1981-01-20
Granted: 1982-03-09
Abstract: ABSTRACT OF THE DISCLOSURE           A high performance, manually and automatically operable,   trip-free magnetic circuit breaker incorporates novel means for mounting and coupling circuit breaker units to achieve multipole operation.  An actuator in each pole has a shaft extending through a housing wall and fitting in splined engagement with the shaft of a corresponding actuator in an adjacent pole mounting the actuators for unison pivotal movement between a positon where one of the actuators is engaged and pivoted by movement of the breaker contacts to an open circuit position in one pole for pivoting the other actuator to trip the breaker components in the adjacent pole to open the circuit in the adjacent pole.  A tie-pin having a peripheral groove therein is snugly fitted into openings in the operating handles of the breaker poles and has coil springs fitted over the pin between pairs of the handles, one spring having a convolution of reduced diameter fitted into the pin groove for retaining the pin in the handle openings.
Patent CA-1154738-A (CA)
Inventor: LOK BRENT M T
IPC: B01J37/26
Filed: 1981-02-06
Granted: 1983-10-04
Abstract: ALUMINUM DEFICIENT ZEOLITE COMPOSITIONS AND PROCESS FOR PREPARING SAME                ABSTRACT OF DISCLOSURE           The hydrophobicity of crystalline zeolites is enhanced  and their catalytic activity altered by treatment with fluorine under controlled condi-tions which result in dealumination and structural stabilization as evidenced by changes observed in their infrared framework spectra.     S P E C I F I C A T I O N
Patent CA-1189815-A (CA)
Inventor: GIDICK WARD F
IPC: C10B39/14
Filed: 1981-04-28
Granted: 1985-07-02
Abstract: Abstract of the Disclosure An improved fume shield for a rotatable one-spot coke quenching car which is hinged to the frame of the car and is supported on the car body through rollers which engage circumferential ribs fixed to the body.  The fume shield so mounted is free to compensate for distortions in the car body caused by temperature changes and therefore maintains a tight closing seal over the ports in the car body while the coke is being transported to the quenching station and coke wharf.
Patent CA-1156498-A (CA)
Inventor: KEMPER YVES J
IPC: F16H47/06
Filed: 1981-05-15
Granted: 1983-11-08
Abstract: POWER DRIVE LINE HAVING A WIDE     RANGE OF SPEED RATIOS          A power drive line in which a continuously variable, nutating traction drive transmission unit is combined with a single planetary gear set to provide two forward modes and a reverse mode of drive line operation.          A pair of transmission unit input shafts are alternately coupled to a power input to the overall drive line.  In one forward mode, the planet gear is driven by the sun gear to rotate the ring gear in a relatively wide low speed range of speed ratios.  In another forward mode, the transmission body carrying the planet gear is connected to be driven directly by the drive line power input to effect a relatively high range of output speeds for a given input speed.  In the reverse mode, the body carrying the planet gear is held against planetary movement so that the planet gear operates as a reversing idler between the sun gear input and the ring gear output.
Patent CA-1211595-A (CA)
Inventor: TRAVER FRANK J
IPC: C09K23/42
Filed: 1981-06-12
Granted: 1986-09-16
Abstract: TRANSPARENT SILICONE EMULSIONS                 ABSTRACT OF THE DISCLOSURE         Optically clear silicone emulsions and methods of providing such emulsions are obtained from linear polysiloxane oils or volatile cyclic polysiloxane starting materials by adding effective amounts of an optical index adjusting agent selected from water soluble polyols and polyethers.  These transparent silicone emulsions can be further combined with cosmetic and medicinal agents as desired.
Patent CA-1155361-A (CA)
Inventor: VAN PAASSEN NICOLAAS A I
IPC: C09K8/58
Filed: 1981-08-24
Granted: 1983-10-18
Abstract: PROCESS FOR PREPARING A PUMPABLE SURFACE-ACTIVE PRODUCT BASED ON POLYETHER ACETIC ACID                      Abstract of the Disclosure A process for preparing a pumpable surface active product based on polyether acetic acid is described, wherein 1-10% water and such an amount of acid is added to a crude reaction mixture obtained by reacting in an alkaline medium an adduct of the formula RO-(C2H4O)xH with a compound Hal-CH2COOM, wherein R is a hydrophobic, aliphatic or aliphatic-aromatic residue, x is a number having an average value of 0.5-10, Hal is a halogen atom and M represents an alkali metal,that a 10-percent aqueous solution of the product shows a pH of 4-7. Preferably about 7% of water is added and also it is preferred to add so much acid that a pH of about 5-6 is obtained.
Patent CA-1181322-A (CA)
Inventor: SUWABE ISAKU
IPC: B25D9/20
Filed: 1981-08-27
Granted: 1985-01-22
Abstract: LIQUID PRESSURE STRIKING DEVICE     ABSTRACT OF THE DISCLOSURE      A liquid pressure striking device defines a double-acting cylinder in a main body thereof having a tool at its lowest portion, and the double-acting cylinder houses therewithin a piston having an upper rod and a lower rod.  The lower rod suspends a hammer for striking the tool, and the upper rod is provided on its outer circumference with a change-over valve mechanism which comprises a valve body of special structure for automatically switching the liquid flow under pressure by vertical movement of the piston, and a valve chamber having a plurality of concaves for controlling said valve body.  Above the upper part of the valve chamber, there is provided an accumulator serving as a cap or cover of the main body.  The main body is formed with an inlet passage of the liquid and an outlet passage, communicating with the accumulator and the valve chamber.  Between the inlet and outlet passages, a special return springless actuating valve intervenes which is furnished with a circuit for directing the liquid to the outlet from the inlet without introducing it into the main body of the device, when the main body is not actuated.
Patent CA-1154401-A (CA)
Inventor: GALL JOHN C
IPC: B65D41/18
Filed: 1981-08-28
Granted: 1983-09-27
Abstract: JOHN C. GALL LOCKABLE CLOSURE FOR CONTAINERS File No. 90-211-2 ABSTRACT OF THE DISCLOSURE    A lockable closure for a container having an annular lip advantageously has locking means whereby the closure can be releasably locked to the container.   The closure has at least an annular portion adapted to be disposed in contact with a portion of the annular lip of the container, and preferably also an annular wall adapted to contact a portion of a wall of the container to provide a sealing engagement therewith.   The locking means generally comprises shoulder means for lockingly engaging the annular lip of the container and bending means adjacent the shoulder means for deflecting the shoulder means about the annular lip of the container.  The closure is useful with containers formed of various materials, for example, of both metal and molded plastic.
Patent CA-1154960-A (CA)
Inventor: KWON HENRY S C
IPC: F27B15/02
Filed: 1981-09-22
Granted: 1983-10-11
Abstract: ABSTRACT OF THE DISCLOSURE      A fluidized bed reactor is provided with heat exchange coils for controlling the temperature of the fluidized bed, with only vertically oriented sections of the coils exposed to the erosive conditions in the fluidized bed.  The vapor-liquid circuit, of which the heat exchanger coils are a part, is arranged to operate on the principle of natural circulation.  At least some of the tuyere elements discharge fluidizing gas at a level substantially above the constriction plate and the bed solids below the level of the tuyere gas dis-charge constitute a static layer during fluidization in which the lower angle bends of the heat exchange coil are embedded and so shielded from erosion by the fluidized solids of the bed proper.  The static layer of bed solids also accommodates thermal expansion of the lower angle bend due to elevated temperatures and insulates the constriction plate from the high temper-atures in the reactor.  The upper angle bends of the heat  exchange coils are located above the fluidized solids of the bed in the freeboard of the reactor. plurality of the heat exchange coils may be fixed in removable hatches or panels provided in the wall of the reactor so that the heat exchange coils may be readily withdrawn from the reactor for maintenance purposes.
Patent CA-1169684-A (CA)
Inventor: WIEBE JOHN H
IPC: F16B35/04
Filed: 1981-10-15
Granted: 1984-06-26
Abstract: ABSTRACT OF THE DISCLOSURE           An anchor bolt is disclosed for mines or the like.          The anchor bolt has threads at both ends for the addition of accessories such as strapping or screening to the end of the bolt extending from the wall or roof of a mine or the like.          The anchor bolt comprises a cylindrical shaped shank, a first threaded section at one end of the shank which is adapted to be internally anchored in a drilled hole by a securing device, an integral torquing member formed on the shank and projecting outwardly from the shank beyond the first threaded section, the torquing member being located adjacent the other end of the shank, adapted for torquing the anchor bolt in the securing device, and a second threaded section at the other end of the shank.
Patent CA-1174525-A (CA)
Inventor: HEEP DIETER
IPC: F23N1/00
Filed: 1981-11-10
Granted: 1984-09-18
Abstract: ABSTRACT OF THE DISCLOSURE            Supplying a fuel to a plurality of burners of a heating installation is performed by individually dosing a fuel by dosing elements to a plurality of burners with an excessive available amount of the fuel, withdrawing an un-used amount of the fuel from the dosing elements, determin-ing a difference between the available amount and the unused amount of the fuel to obtain an actual consumed amount of the fuel, comparing the thus obtained actual consumed amount of the fuel with the desired consumption amount of the fuel, and controlling the dosing of the fuel to each of the burner in dependence upon the results of the comparing steps.
Patent CA-1169582-A (CA)
Inventor: HOUSER DAVID E
IPC: H01L21/48
Filed: 1981-11-19
Granted: 1984-06-19
Abstract: PINNED SUBSTRATE APPARATUS                 Abstract of the Disclosure A pinned ceramic substrate in which at least one pin has an extension that is in interlocking engaged relationship with the ceramic particles of a substrate region surrounding an opening in which the pin or a portion thereof is located.  Both the extension and interlocking engaged relationship are the result of an impact force to the pin which places the pin in a temporary viscoelastic fluid state.
Patent CA-1172757-A (CA)
Inventor: GELINAS RAYMOND C
IPC: G01R29/08
Filed: 1981-11-23
Granted: 1984-08-14
Abstract: ABSTRACT OF THE DISCLOSURE A system for determining the modulation imposed on a curl-free magnetic vector potential field.  The system includes apparatus for detecting the curl-free magnetic vector potential field component by means of a Josephson junction. The magnetic vector potential field interacts with the Josephson junction by var-ying the phase of the argument of the sine function which determines the Josephson junction current.  The output signals of the Josephson junction are coupled to apparatus that can determine the modulation of the detected field.  Because the magnitude of the change in the detected curl-free vector  potential field causes a proportional change in the phase of the Josephson junction current, the modu-lation of the field can be established.
Patent CA-1160771-A (CA)
Inventor: SCHENKEL KLAUS D
IPC: H04Q11/04
Filed: 1981-12-04
Granted: 1984-01-17
Abstract: ABSTRACT OF THE DISCLOSURE In a service integrated multiplex signal transmission system for transmitting narrowband and broadband signals between a central exchange ter-minal and a subscriber terminal, which system includes a light conductor path connected between the terminals, a transmitter device at one terminal composed of sources of such narrowband and broadband signals and multiplexers connected for combining the signals provided by the sources into a multiplex signal and for supplying such multiplex signal to the light conductor path, and a receiver device at the other terminal composed of demultiplexers connected to the light conducting path for receiving multiplex signals from that path and separating the received multiplex signals into narrowband signals and broadband signals, the device at the subscriber terminal being normally supplied with operating power by local utility mains, and including a charge accumulator for supplying operating power independently of the local mains, connected for supplying such power to the device at the subscriber terminal in the event of interruption of the power supply provided by the local mains, and the system being arranged to effect signal transmission at a reduced bit rate in the event of such local mains power interruption, the light conductor path is constructed to present separate optical transmission channels for the narrowband signals and for the broadband signals.
Patent CA-1165323-A (CA)
Inventor: FRYBERG MARIO
IPC: G03C5/30
Filed: 1981-12-09
Granted: 1984-04-10
Abstract: Process for the preparation of pyrazolidin-3-ones Abstract In a one-vessel reaction or in two separate stages, pyrazolidin-3-ones are prepared by reacting a .beta.-hydroxy-propionic acid of the formula   in which R2 is alkyl or hydroxyalkyl and R3 is hydroxyalkyl, with a phenylhydrazine of the formula   in which R4 is hydrogen, alkyl, alkoxy, hydroxyl or halogen, to give a .beta.-hydroxypropionic acid hydrazide, and subse-quently cyclising the hydrazide.    An acid catalyst is present during the cyclisation of the hydrazide and, optionally,  even during its formation from the acid component and the hydrazine component.        The process leads to high yields of pyrazolidin-3-ones after a short reaction time.