baber/WOPTO huggingface dataset:
Patent CA-1172366-A (CA)
Inventor: GOSLING HAROLD W
IPC: G10L11/00
Filed: 1979-03-26
Granted: 1984-08-07
Abstract: ABSTRACT    Methods and apparatus for encoding electrical signals for transmission in a narrow frequency band or at a low bit rate are described together with methods and apparatus for constructing signals from encoded signals. A succession of first signals representing the durations of sub-divisions, for example, half cycles of the signal to be encoded are generated as is a succession of second signals representing the shape of the sub-divisions. each pair of first and second signals may then be replaced by one of a limited number of symbols. After an operations such as transmission to a remote location or removal or addition of symbols, the symbols are translated back in to first and second signals. Whether transmitted or from a store, the first and second signals are used to construct analogue signals having sub-divisions of duration derived from the first signals and shapes derived from the second signals.
Patent CA-1065465-A (CA)
Inventor: SINGFIELD PETER
IPC: G01V1/133
Filed: 1979-04-02
Granted: 1979-10-30
Abstract: ABSTRACT            The present invention relates to powerful sound impulse generation methods such as in use presently in the field of seismic explora-tion under water.
Patent CA-1131608-A (CA)
Inventor: KIM LEO
IPC: C07C1/04
Filed: 1979-04-26
Granted: 1982-09-14
Abstract: ABSTRACT   The invention relates to a complex composition comprising: an ion exchange resin having a backbone of polystyrene, polystyrene cross-linked with divinyl benzene, phenol-formaldehyde condensate, benzene-formaldehyde condensate, polyacrylic acid, polymethacrylic acid, epoxy polyamine, phenolic polyamine or polymerized vinylpyridine; a transition metal which is directly bound either coordinately or ionically to the ion exchange resin; and an organic linking compound which has at least one moiety coordinately bound to the metal and further has at least one moiety which is ionically bound to the ion exchange resin. This compo-sition may be used in hydroformylation, carbonylation, hydrogenation, isomerization, disproportionation, oligomerization and Fischer-Tropsch reactions.
Patent CA-1113730-A (CA)
Inventor: NAYLER DOUGLAS W J
IPC: E21B15/02
Filed: 1979-06-19
Granted: 1981-12-08
Abstract: GUIDE ROLLER                ABSTRACT OF THE DISCLOSURE     A guide roller assembly is disclosed for use with ver-tically moving members such as in offshore drilling rigs.          The assembly preferably includes a pair of guide rollers which are supported on a cylindrical, rotational mounting shaft, with a biasing means applying a constant torque to the shaft in order to maintain the guide rollers adjacent respective guide surfaces.  An adjustment subassembly is provided to vary the position of the guide rollers with respect to the guide surfaces.  This subassembly includes a tubular support which has an elongated circular opening receiving the cylindrical mounting shaft and which is mounted in a circular bore.  The circular opening of the support is eccentric with respect to the circular bore, such that rotation of the support adjusts the position of the shaft and rollers.
Patent CA-1154520-A (CA)
Inventor: YOUNG JERRY W
IPC: B31B50/02
Filed: 1979-07-12
Granted: 1983-09-27
Abstract: OBJECT PROCESSING APPARATUS     Abstract of the Disclosure An apparatus for processing objects includes means for orienting an object to a predetermined rotational position, and control means for con-trolling the operation of the orienting means for orienting the rotational position of the object.
Patent CA-1130360-A (CA)
Title: Hid lamp having improved outer  envelope coating
Inventor: GRAFF EUGENE A
IPC: H01J61/38
Filed: 1979-09-11
Granted: 1982-08-24
Abstract: 47,847 ABSTRACT OF THE DISCLOSURE         A high-intensity-discharge lamp having a visible light-transmitting protective envelope enclosing a discharge-sustaining arc tube having electrodes operatively disposed therein.  The envelope is designed to carry on the internal surface  thereof  a  thin,  lamp-color-modifying and  light-diffusing  coating.   The  coating  comprises  mixed  finely-divided phosphor material and very finely divided silica wherein the silica component of said coating consists of hydrophobic silica.  This coating is particularly suitable for being applied by an electrostatic process.
Patent CA-1139956-A (CA)
Inventor: ROSE MARK A
IPC: C01B25/237
Filed: 1979-10-05
Granted: 1983-01-25
Abstract: S P E C I F I C A T I O N                     EXTRACTION PROCESS   A B S T R A C T            Uranium is extracted from wet process phosphoric acid by extraction with a mixture of a diorganophosphate and a neutral phosphorus compound, which is preferably a triorgano phosphine oxide, in the presence of nitrate to form an organic extract layer containing uranium and an aqueous acid layer, which are separated.
Patent CA-1140636-A (CA)
Inventor: BENNETT ROBERT M JR
IPC: A61N1/37
Filed: 1979-11-05
Granted: 1983-02-01
Abstract: ABSTRACT OF THE DISCLOSURE          A system is disclosed for accurately providing a signal or signals indicative of the relatively sharp leading edge and the relatively attenuated trailing edge of a pulse and in particular of a pulse applied by a heart pacemaker to a patient's heart.  The system of this invention functions to distinctly detect each of the relatively fast rising leading edge and the relatively slow rising trailing edge, while preventing a premature detection of the trailing upon the attenuated or drooping portion of the pacing pulse therebetween.  The patient's heart activity signals compris-ing the pacing pulses and with extraneous noise including the patient's QRS wave, 60 Hz noise, muscle artifacts, etc., are applied to a differentiator or wave shaping amplifier whose gain or transfer function is configured to reject signals having low frequency components, i.e., the noise signals mentioned above.  The output of the differentiator is applied to a first input of a differential amplifier, while the aforementioned heart activity signals are applied to a second input; the differential amplifier circuit essen-tially subtracts the amplifier output from the heart activ-ity signals to remove the DC component from the output of the amplifier circuit.  The differential amplifier output is applied to a first threshold circuit or leading edge detec-tor to provide an output signal indicative of the occurrence of the leading edge, if amplifier output is above a prede-termined amplitude, and to set a one shot circuit, which in turn provides a signal initiating the detection of the trailing edge.  The output of the wave shaping amplifier is also applied via a limiter or amplifier to a second thresh-old circuit, which responds to signals above a predetermined threshold to provide a signal indicative of the occurrence of the trailing edge.  Noting that the output of the wave-shaping amplifier is less for the trailing edge than the leading edge, the gain of the amplifier, as well as the time constant of the waveshaping amplifier and the threshold level of the second threshold detector is set to detect the trailing edge of the pacemaker pulse.
Patent CA-1147383-A (CA)
Inventor: SOUTHGATE PETER D
IPC: H01J9/42
Filed: 1979-12-20
Granted: 1983-05-31
Abstract: RCA 73,558 Abstract Apparatus is provided for determining the widths and spacings of  substantially parallel opaque stripes on a substrate, wherein the stripes are separated by openings. The apparatus comprises a light source for illuminating the substrate and photodetecting means positioned to receive light from the illuminated substrate. Means are included for scanning the photodetecting means transverse to the stripes and for sweeping the photodetecting means in a direction substantially parallel to the stripes.  The apparatus further includes means for converting the output of the photodetecting means into a quantized signal, means for dividing the quantized signal into separate signals representing stripe widths and opening widths between stripes, and means for converting the stripe width and opening width signals into a signal representing center-to-center spacing between openings.
Patent CA-1127489-A (CA)
Inventor: COATES JOHN T
IPC: A61F13/02
Filed: 1980-01-11
Granted: 1982-07-13
Abstract: BANDAGE     ABSTRACT OF THE DISCLOSURE         A bandage comprising, a tape strip having a pressure-sensitive adhesive on a front surface thereof to secure the band-age on a patient.  The bandage has an absorbent pad comprising a sheet of nonwoven fabric secured on the front surface of the tape strip.  The sheet has an inner layer of substantially hydrophilic fibers, and an outwardly facing surface layer of substantially hydrophobic fibers.  The inner and surface layers are bonded together in substantially isolated highly compacted areas defin-ing adjacent regions of substantially less compaction.  The fab-ric is formed in a repeating series of wave-like undulations sub-stantially throughout the dimensions of the fabric, with the interfiber spaces in the areas being substantially closed, and with the interfiber spaces in the regions being substantially open.
Patent CA-1124871-A (CA)
Inventor: DODT WILLIAM C
IPC: G05B19/05
Filed: 1980-02-12
Granted: 1982-06-01
Abstract: CHECKING PROGRAMMED CONTROLLER OPERATION      Abstract Programmed controllers execute sequences of control functions for controlling a device.  External noise can cause controller malfunctions on critically operated de-vices.  Proper sequencing is verified by assigning access key/check codes to particular sequences.  A check key code is generated during execution of a sequence only if the sequence is properly executed by the pro-grammed controller.  At completion of the control sequence, the generated code is compared with the access or original code for verifying appropriate programmed controller sequencing. Several sequences can be embedded or nested in each other, each having its own check key with the overall sequence also having an independent check key.
Patent CA-1169919-A (CA)
Inventor: GOTOU MAKOTO
IPC: H02P6/06
Filed: 1980-02-21
Granted: 1984-06-26
Abstract: A CONTROL SYSTEM FOR A DC MOTOR                   ABSTRACT OF THE DISCLOSURE         A control system for a DC motor controlling the supply of power to polyphase coils by a drive transistor has a DC-DC switching converter for changing an output voltage according to an on-time ratio of the switching semiconductor, and a voltage controller for detecting a voltage drop across the drive transis-tor and for controlling the on-time ratio of the switching semi-conductor so that the voltage drop across the drive transistor may be a predetermined small value.  Therefore, the control system for a DC motor has a high power efficiency but reduced noise in the polyphase coils because of the operation of the DC-DC switching converter and the voltage controller.  Furthermore, the control system for a DC motor can precisely control the supply of power to the polyphase coils by the drive transistor.
Patent CA-1128245-A (CA)
Inventor: WILLIAMS ROY C
IPC: C08G18/36
Filed: 1980-02-26
Granted: 1982-07-20
Abstract: ABSTRACT OF THE DISCLOSURE           Aqueous dispersions of polyurethane polymers in ammonium salt form are prepared by reacting diisocyanates with a polyhydroxy, carboxylic acid to form an isocyanate-terminated prepolymer that is united with an unsaturated fatty acid ester polyol to provide carboxylic-containing, water-dispersible polyurethanes having properties exhibited by organic solvent-based, oil-modified polyurethanes.  The aqueous dispersions can be formed by neutralization of "oil-modified," carboxylic group-containing, water-dispersible polyurethanes with ammonium salt-forming materials such as ammonia and amines.  The aqueous dispersions are especially desirable coating compositions.  An organic phosphite may be incorporated in the compositions to control the development if hardness in the films made from the aqueous dispersions and thereby avoid the formation of wrinkles in films that are made from the compositions.
Patent CA-1126511-A (CA)
Inventor: VANCE REGINALD W
IPC: A01M23/30
Filed: 1980-03-13
Granted: 1982-06-29
Abstract: ABSTRACT OF THE DISCLOSURE           An animal trap, especially for lethally catching small rodents such as mice, comprises a base to which is pivotally mounted a striker wire, spring urged from a set position to a striking position.  A trigger member is located adjacent one end of the base, and holds the striker wire to maintain it in the latched position.  An elongated platform is pivotally mounted on the base and is connected at one end to the trigger member.  Immediately above the platform is provided a bait receptacle, with an open side presented away from the trigger end of the base, and a pivoted cover or hood, elongated and open-ended.  The bait is thus accessible only to an animal approaching from the striking end of the base.  The application of the animal's weight to the end of the platform causes release of the striker wire.  The sensitivity of the trap is adjustable by variation of the position of engagement of the striker wire on the trigger member, caused by changing the position of the bait receptacle.  The position of the bait receptacle is also adjustable to allow for different animal sizes.
Patent CA-1134306-A (CA)
Inventor: CARR NORMAN L
IPC: C10G1/04
Filed: 1980-04-01
Granted: 1982-10-26
Abstract: FILTRATION OF A COAL LIQUID SLURRY        USING POLYISOBUTYLENE                        Abstract The rate of filtration of a coal liquid slurry is increased by adding polyisobutylene to the slurry prior to filtration or by washing a precoat cake of filter aid with an oil solution of polyisobutylene prior to filtration.
Patent CA-1127214-A (CA)
Title: Excessive overcurrent disabling mechanism for a circuit interrupting device
Inventor: TOBIN THOMAS J
IPC: H01H85/38
Filed: 1980-04-01
Granted: 1982-07-06
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed is a mechanism for preventing the operation of a circuit interrupting device during the occurrence of excessive overcurrent. The circuit interrupting device includes an insulative housing having circuit-connectable opposed terminals thereon. Included within the housing is an arcing rod which is electrically con-nected to one terminal and which, in response to an overcurrent, moves away from a stationary contact electrically connected to the other terminal. Arcing rod move-ment elongates an arc formed between the arcing rod and the contact in an arc extinguishing environment to extinguish the arc and interrupt the circuit. The mechanism of the invention includes a shoulder on the arcing rod and one or more magnetic yokes positioned adjacent, but normally out of contact with, the shoulder. When an overcurrent through the device occurs which exceeds the device's rating, flux generated by current flow through the arcing rod moves the yokes to engage the shoulder, thus preventing arcing rod movement. The yoke may be normally biased away from the shoulder by one or more springs.
Patent CA-1121846-A (CA)
Inventor: LINDAHL BENGT E
IPC: B66C1/18
Filed: 1980-04-23
Granted: 1982-04-13
Abstract: ABSTRACT OF THE DISCLOSURE      A lifting sling in the shape of a mat, particularly designed to lift large cylindrical objects. The lifting mat comprises a number of slings which are positioned side by side, each one of said slings consisting of an elongate loop of parallel strands. Each sling extends inside its individual channel, which channels are formed by a wrapping enclosing the slings.     A portion of each sling protrudes from its channel at each channel end. These protruding sling portions are individually enclosed by protective coverings and from lifting loops.    The lifting mat in accordance with the invention is less expensive to manufacture than prior-art lifting mats while at the same time they are more wear-resistant and easier to handle.
Patent CA-1104418-A (CA)
Title: Hydraulic pump and motor for a brake system
Inventor: BLACK RICHARD D
IPC: F16D57/06
Filed: 1980-06-09
Granted: 1981-07-07
Abstract: ABSTRACT OF THE DISCLOSURE:         A braking system for vehicles in which each wheel of the vehicle is arranged to drive a variable displacement hydraulic pump, the output of which is restricted to cause a slowing force on the wheel.  A directional control is incorporated with a servo-control valve which is responsive to operator signals acting through a relay system.  Electrical back-up controls are provided to take over in the event of fluid supply failure, and brake balancing with anti-lock-up valves are incorporated in the system together with a static brake which locks the wheel when the vehicle comes to a stop.
Patent CA-1162022-A (CA)
Inventor: SCHREWE HANS
IPC: B22D11/128
Filed: 1980-09-09
Granted: 1984-02-14
Abstract: Abstract of the Disclosure A roller in a continuous casting machine has a central duct and is made of porous material and/or is provided with radial ducts to suck excess cooling water from the periphery.  The same feature can be applied to a roll in a mill.
Patent CA-1151300-A (CA)
Inventor: NALLY ROBERT B
IPC: G06V10/10
Filed: 1980-09-25
Granted: 1983-08-02
Abstract: CHARACTER RECOGNITION SYSTEM            Abstract of the Disclosure A character recognition system is disclosed in which feature characteristics of an analog waveform representing an unknown character are applied to a plurality of templates each representing a known char-acter and consisting of a number of windows in which the feature characteristics of the known character are to be located.  Hardware implemented circuits compare each feature characteristic of the unknown character with each window of the template.  If a feature characteristic is found outside the window, the distance between the location of the feature characteristic from the location of the window is found.  The sum of the distances for each template is generated and the templates having the two minimum distances are selected and evaluated to determine if a character can be recognized from the value of the two minimum distances.
Patent CA-1151308-A (CA)
Inventor: PAETSCH KARL
IPC: B41J2/49
Filed: 1980-10-16
Granted: 1983-08-02
Abstract: IMPROVED SIGNATURE PRESENTATION METHOD AND APPARATUS             ABSTRACT    Signature image information is converted from scanner input data into lines of character spaces which can conveniently be presented on a matrix printer. Both the method of image conversion from input scans to output lines of characters and apparatus for inter-preting control information accompanying character picture element information are disclosed.  An efficient format for presenting the control information and reducing the amount of picture element data stored and handled is also disclosed.             Ki 9-79-001
Patent CA-1150840-A (CA)
Inventor: JONES HOWELL A JR
IPC: G07B17/00
Filed: 1980-10-29
Granted: 1983-07-26
Abstract: POSTAGE METER HAVING KEYBOARD WITH CALCULATOR FUNCTION     ABSTRACT OF THE DISCLOSURE     An electronic postage meter has a keyboard with numeric keys for entering postage values, a display, a set key and an arithmetic key.  Circuitry within the postage meter is responsive to the depression of the arithmetic key for modifying a displayed amount in accordance with the next value entered on the keyboard, and is responsive to depression of the set key for enabling the printing of postage in accord-ance with  the displayed value. The arithmetic function key may effect the simple addition of the old value in the display and the newly keyed-in function.
Patent CA-1169168-A (CA)
Inventor: MCGANN WILLIAM E
IPC: H04B7/185
Filed: 1981-01-02
Granted: 1984-06-12
Abstract: ABSTRACT         In satellite communication systems it is often necessary to relay the signal between terminal stations and the satellite through ground relay stations remote from the terminal stations. Normally, in systems using composite multi-carrier signals for transmission through the satellite, the composite multi-carrier signals are reduced to baseband in the ground relay station prior to retransmission. To reduce the amount of equipment and the cost of such a ground relay station, a method and apparatus for relaying the composite multi-carrier signal through the ground relay station without reducing it to baseband in the ground relay station is provided. Thus, with this arrangement, the composite multi-carrier nature of the signal is preserved throughout the ground relay station.
Patent CA-1118070-A (CA)
Inventor: JUVINALL JOHN W
IPC: G01N21/27
Filed: 1981-01-09
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to a system for determining which of a plurality of molds produced a particular container.          A concentric ring code is molded into the bottom of each con-tainer as it is produced. The containers are then passed by a reading station, where light whose intensity is proportional to the angle of incidence is projected onto the bottom of the container. Readings are taken of the variation of intensity of light reflected to a particular point in order to determine the position of rings on the container. Suitable electronics then decode the ring position to determine the container code, thus allowing  identification of the mold which produced each container.
Patent CA-1158011-A (CA)
Inventor: FINK ROLAND
IPC: C08J7/12
Filed: 1981-01-19
Granted: 1983-12-06
Abstract: Abstract A polyethylene article or foil containing finely divided cellulose and surface treated by corona, radiation, chemical activation or heat and having improved permanent adhesive properties.
Patent CA-1155720-A (CA)
Inventor: KERN JAMES W
IPC: B23K35/363
Filed: 1981-01-27
Granted: 1983-10-25
Abstract: ABSTRACT OF DISCLOSURE          A method for forming a porous aluminum surface on an aluminum substrate using a potassiumfluoaluminate brazing flux in critical weight ratio of 0.05 to 0.6 with an aluminum powder matrix component.     S P E C I F I C A T I O N
Patent CA-1158370-A (CA)
Inventor: LEWINER JACQUES
IPC: G01T1/142
Filed: 1981-01-29
Granted: 1983-12-06
Abstract: ABSTRACT OF THE DISCLOSURE The device comprises, on the one hand, a cassette containing an electret between two electrodes and, on the other hand, a fixed reader adapt-ed to receive the cassette in a pocket, to identify it, to measure the charge of its electret and to display data relating to this charge.  This reader com-prises also a head adapted to record the data on an area (or strip) of the cassette and there are provided readers independent of the aforesaid reader adapted to subsequently receive the cassette, to measure the charge of its electret, to read the data and, by difference between the measured value and that read, to display the radiation dose received by the cassette since its recording.