baber/WOPTO huggingface dataset:
Patent CA-1133051-A (CA)
Inventor: GOEDE SIMON
IPC: G03B15/05
Filed: 1979-11-14
Granted: 1982-10-05
Abstract: ABSTRACT      A process for charging a capacitor, so as to achieve a short charging time while avoiding a high charging current pulse, the charging current during the course of the charging being regulated to a value which at least approaches being constant.  The time constant of the charging circuit is altered during the charging process.      An apparatus to carry out the process contains  a controlled resistance arrangement which is dependent upon the charging voltage of the capacitor.     Application of the process and of the apparatus, particularly for flash guns with a fast flash series.
Patent CA-1138523-A (CA)
Inventor: TUSSO ROBERT J
IPC: G03B27/62
Filed: 1979-11-14
Granted: 1982-12-28
Abstract: Abstract of the Disclosure A control system for a copying machine having a scanning optical system and main and auxiliary supplies of copy paper of different size and adapted for use with a collator having a back bar, in which a signal which is produced when the machine is turned on automatically sets the machine to feed paper from the main supply and sets the initial scan to the length of the longest copy and in which a signal which is a measure of the length of the first copy being made in a given operation sets the length of the scan and positions the collator back bar in accordance with the length of the first copy.
Patent CA-1129489-A (CA)
Title: Gapless surge arrester
Inventor: SWEETANA ANDREW S JR
IPC: H01C7/12
Filed: 1979-11-14
Granted: 1982-08-10
Abstract: GAPLESS SURGE ARRESTER                 Abstract of the Disclosure A gapless surge arrester is disclosed herein and includes a porcelain outer casing and a stack of zinc oxide discs located within the casing for passing surge currents there-through.  silicon dioxide, preferably sand, is provided betwen this stack in the casing for transferring heat from the discs to the porcelain outer casing as a result of the surge current and for absorbing fault energy where necessary by changing states.
Patent CA-1141145-A (CA)
Title: Apparatus for bringing liquids into contact with  each other
Inventor: HENTSCHEL KLAUS
IPC: C07D251/28
Filed: 1979-11-19
Granted: 1983-02-15
Abstract: ABSTRACT OF THE DISCLOSURE         The invention provides an apparatus for bringing liquids into intimate contact with each other, at least one of said liquids being viscous, comprising a tubular vessel having a closed or closeable upper portion and a lower portion tapering downwardly and inwardly in a breast-like manner to form a dis-charge opening and at least one spray member for a second said liquid arranged circumferentially of the vessel above said tapered lower portion and directed in a slightly upwards direction towards said nozzle or the upper end of said vessel.
Patent CA-1110226-A (CA)
Inventor: CUNNINGHAM ROBERT A
IPC: E21B10/12
Filed: 1979-11-30
Granted: 1981-10-06
Abstract: ABSTRACT OF THE DISCLOSURE     An earth boring drill bit for large diameter shafts has an improved cutter arrangement.  The drill bit has a cutter support member with a number of cutters mounted to it for disintergrating with earth  formation face.  At least one inner cutter is mounted near the center for cutting the center area.  A number of gage cutters are mounted at the periphery to cut the gage area of the shaft.  A number of intermediate cutters are spaced between the inner and gage cutters.  Each intermediate cutter overlaps one-half of its width with an adjacent intermediate cutter.
Patent CA-1129876-A (CA)
Inventor: PALMER RICHARD G
IPC: C07C69/54
Filed: 1979-12-10
Granted: 1982-08-17
Abstract: ABSTRACT OF THE DISCLOSURE       The present invention relates to a method of purifying readily polymerisable high boiling vinyl monomers, in particular the acrylates and methacrylates of alkylene oxides and their ether and ester derivatives to obtain pure water white esters.  The process involves flash evaporation of the preheated esters followed by condensation in the presence of polymerisation inhibitors under specific conditions.  The purified esters thus produced find use either as such or in the form of their copolymers in coatings, enamel paints, weather resistant finishes, adhesive compositions, as plasticizers, as lubricants for cellulose films and fibres, in magnetic tape recording media and as oil additives.
Patent CA-1152393-A (CA)
Inventor: ENGA BERNARD E
IPC: F02B23/00
Filed: 1980-01-10
Granted: 1983-08-23
Abstract: ABSTRACT  This invention relates to internal combustion engines and particularly to igniting the fuel/air mixture of the engine.  In more detail a catalytic engine comprises one or more cylinders, each cylinder having an associated piston and an entry port disposed at the top or in the region of the top of the cylinder and loading into a passage in communication with a precombustion chamber, means for injecting fuel into the combustion chamber, and a catalytic unit disposed across the entry port O-L across the said passage for catalytically igniting an injected fuel/air mixture, the catalytic unit including a thermally stable and oxidation resistant member having a multiplicity of flow paths or channels, the surfaces of which possess catalytic activity.
Patent CA-1143422-A (CA)
Inventor: MEYERS THEODORE F
IPC: F24H1/20
Filed: 1980-01-16
Granted: 1983-03-22
Abstract: HOT WATER HEATING AND   DISPENSING DEVICE Abstract of the Disclosure A water heating and dispensing device includes a tank which forms the main hot water container, a heating device in the tank which is thermostatically controlled in order to maintain the temperature of the water at the desired level, inlet and outlet conduits associated with the tank and a valve associated with the inlet conduit for controlling water flow into the tank and dispensing of water from the outlet conduit.  A separate reservoir is connected to the inlet conduit between the valve and the tank through a venturi nozzle which permits water to flow into and out of the reservoir.  The reservoir has collapsible wall portions which collapse to provide for a decrease in volume in the reservoir as water is drawn from it through the venturi nozzle during dispensing of water, and which is expandable to an expanded maximum, completely filled condition after dispensing has ceased r as a result of water flowing back from the main hot water container through the venturi nozzle.  The maximum filled position has a sufficient volume to reduce the water level in the tank and outlet conduit sufficiently to allow for expansion of water in the tank due to heating, without dispensing water from the outlet conduit due to expansion.  The reservoir comprises a cylindrical collapsible tube concentric with the inlet conduit and provided at one end with a rigid closure member in which is formed the venturi nozzle.
Patent CA-1143215-A (CA)
Inventor: CARRENS DONALD E
IPC: F01L17/00
Filed: 1980-02-27
Granted: 1983-03-22
Abstract: REVERSING VALVE ASSEMBLY FOR A FLUID OPERATED WELL PUMP Abstract of the Disclosure A reversing control valve for a fluid operated downhole oil well pump having reciprocating pistons that is constructed to control the velocity and reversing of the pis-tons.  The control valve functions to control the piston ve-locity and prevent damage to the pump components due to shock stresses induced by pressure impulses typically associated with pumped well fluids.  The reversing control valve is con-structed to regulate the piston velocity in response to the sensing of several pressure conditions in the well and in the pump.
Patent CA-1088113-A (CA)
Inventor: ZANOW ANDREY L
IPC: F16F1/36
Filed: 1980-03-07
Granted: 1980-10-21
Abstract: CUSHIONING DEVICE Abstract of the Disclosure A compression-type cushioning pad provides load-travel characteristics to meet specific shock cushioning requirements.  The pad comprises a metal plate having a cushion of elastomer bonded to at least one side thereof, the cushion having corrugated surface configuration con-toured to provide the desired load-deflection characteristics.
Patent CA-1144583-A (CA)
Inventor: JOHANSSON G INGEMAR
IPC: E06C5/26
Filed: 1980-04-03
Granted: 1983-04-12
Abstract: ABSTRACT       A ladder for use with vehicles is composed of two flexible supporting members and a number of foot steps, said supporting members comprising a reinforcement located in the vicinity of that face  of the member which is directed outwardly from the vehicle so as to give said member a greater reistance to ben-ding in the direction of the vehicle than in the opposite direc-tion. According to another aspect of the invention each foot step at the opposite ends thereof is pivotally connected to brackets mounted in the flexible supporting members.
Patent CA-1133688-A (CA)
Inventor: CARLIN JOSEPH T
IPC: E21B43/22
Filed: 1980-04-18
Granted: 1982-10-19
Abstract: PETROLEUM SULFONATES FOR OIL RECOVERY           (D#74,495-2-Cl-F) ABSTRACT OF THE DISCLOSURE         Disclosed is a novel aqueous surfactant-containing fluid suitable for use in surfactant flooding oil recovery processes, and an oil recovery process using the fluid. The fluid contains petroleum sulfonates alone or in combination with solubilizing co-surfactants such as ethoxylated alkyl or alkylaryl compounds, alkyl or alkylaryl polyethoxy sulfates, or alkyl or alkylaryl polyethoxy sulfonates.  The petroleum sulfonate is a mixture of petroleum sulfonates of varying equivalent weights ranging from 250 to 700, with an average equivalent weight between 325 and 425 and preferably between 350 and 400.  Additionally, the distribution of equivalent weights is relatively uniform, with from 40 to 70 percent being less than 400 and from 60 to 30 percent of the petroleum sulfonates having equivalent weights being 400 or greater; and preferably from 15 to 35 percent of the petroleum sulfonates having equivalent weights less than 350, and 30 to 50 percent having equivalent weights from 350 to less than 500 and from 10 to 40 percent of the petroleum sulfonates having equivalent weights of 500 and above.  The especially preferred embodiment employs a mixture of petroleum sulfonates in which 5 to 15 percent have equivalent weights less than 300, from 25 to 50 percent have equivalent weights the range of from about 300 to less than 400, from 15 to 25 percent fall in the range of from about 400 to less than 500 and from 5 to 20 percent have equivalent weights greater than 500.
Patent CA-1145454-A (CA)
Title: Digital transmission and reception of information
Inventor: HUTT PETER R
IPC: H04N7/088
Filed: 1980-05-01
Granted: 1983-04-26
Abstract: Abstract A television system for transmitting and receiving digital  information included in the conventional wide-band video signal is arranged to provide a display on a screen which display has a predetermined number of rows and each row is capable of including a predetermined number of characters. In order to cater for television video systems which do not allow the data for a complete row of display to be transmitted via one line period of the video, the transmitted digital information signal is provided with an additional control byte used to indicate a horizontal position in the display of at least a portion of the information transmitted in that line period and the receiver is provided with a decoder for decoding the additional control byte and using the decoded signal for controlling addressing of a conventional page store.
Patent CA-1170608-A (CA)
Inventor: STRUCK CARL-HEINZ
IPC: F04F5/04
Filed: 1980-05-08
Granted: 1984-07-10
Abstract: ABSTRACT OF THE DISCLOSURE           A spray nozzle for use in the elbow interconnecting a coke oven ascension pipe and a main, characterized in having frusto-conical nozzle orifices which generate sprays which completely cover the elbow cross section only when they reach the transition between the elbow and the coke oven main.
Patent CA-1132411-A (CA)
Inventor: WIENER MURRAY
IPC: F22B37/14
Filed: 1980-05-09
Granted: 1982-09-28
Abstract: VAPOR GENERATOR                  ABSTRACT OF THE DISCLOSURE   A pair of parallel fluid flow connected steam-water drums and associated piping for natural or assisted circulation steam generators including downcomer pipes for receiving water from the drums and being disposed below and in equispaced re-lationship with the drums.  A plurality of supply tubes for connecting the downcomer pipes with each drum, the supply tubes being equally divided between the drums; and a plurality of riser tubes for delivering a steam-water mixture to the drums, the riser tubes being equally divided between the drums.
Patent CA-1140252-A (CA)
Inventor: LAGONI WILLIAM A
IPC: H04N5/20
Filed: 1980-05-09
Granted: 1983-01-25
Abstract: RCA 73,994 Abstract of the Disclosure A gain controllable circuit suitable for processing vertical detail signal information in a video signal is disclosed.  The circuit exhibits a non-linear signal amplitude transfer function wherein different amounts of signal gain are imparted to signals having amplitudes within prescribed ranges.  Small amplitude signals subject to restoration are translated with a prescribed restoration gain.  Moderate amplitude signals subject to enhancement (peaking), and large amplitude signals subject to paring (amplitude reduction), are controllably amplified without altering the restoration gain characteristic for small signals.
Patent CA-1137065-A (CA)
Inventor: VANGERMAIN ERWIN
IPC: C07D301/10
Filed: 1980-06-25
Granted: 1982-12-07
Abstract: A B S T R A C T A method is described for increasing the activity and extending the life of supported silver-catalysts, as used in producing ethylene oxide with oxygen or oxygen containing gases.  The method employs the aid of promotor metals known per se, use being made of an intimate mixture consisting of a silver-carrier-catalyst and promotor-metal compounds of suitable shape or a carrier material containing only the desired promotor-metal compounds.
Patent CA-1152675-A (CA)
Inventor: FISHER ROBERT G
IPC: F16L55/10
Filed: 1980-06-25
Granted: 1983-08-23
Abstract: ABSTRACT OF THE DISCLOSURE      A method for forming a three-dimensional network containing encapsulated organic material comprises reacting a functionalised polymer and a complementary functional cross-linking agent (both being miscible with, and preferably soluble in, the organic material) in the presence of the organic material, which may be hydrocarbons and, particularly, oil.     A two pack composition of the functionalised polymer and the cross-linking agent is also claimed.     The method and composition may be used for recovering oil spilled on sea or land, for treating organic wastes or for preventing leakage of oil from tanks or pipelines.
Patent CA-1155875-A (CA)
Inventor: BIRCHALL JAMES D
IPC: C04B7/02
Filed: 1980-06-26
Granted: 1983-10-25
Abstract: 16. ABSTRACT                                         MD.30862 A hydraulic cement composition comprising a mixture of at least one particulate hydraulic cement and water in which the weight average mean particle size of the particles of the cement is less than 20 microns and in which the proportion of water is not greater than 30% by weight of the hydraulic cement in the composition, the cement being preferably sub-stantially free of particles having a size above 20 microns and the proportion of water being preferably not greater than 20% by weight.
Patent CA-1102319-A (CA)
Inventor: ZIMMERMAN DENNIS M
IPC: A61K38/00
Filed: 1980-08-14
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE            The invention provides compounds of the formula            (III) wherein one of y and q is zero and the other is 1, and R2 is hydrogen, hydroxy, or C1-C3 alkoxy; and the non-toxic, pharmaceutically acceptable acid addition salts thereof.          These compounds are intermediates in the preparation of N-substituted-5a-aryl-decahydrobenzazepines which are valuable analgesic compounds.
Patent CA-1151088-A (CA)
Inventor: SHAER ELIAS H
IPC: C12N9/96
Filed: 1980-10-20
Granted: 1983-08-02
Abstract: ABSTRACT OF THE  DISCLOSURE     Aqueous enzyme preparation stabilized with a salt of a lower molecular weight acid in the presence of alcohol.          Detergent compositions containing these enzymes have a wide variety of uses in that they are capable of removing proteinaceous and starchy stains such as egg stains, blood stains, gravy stains and the like.
Patent CA-1132807-A (CA)
Inventor: ABRAHAM FAYEZ F
IPC: A47F3/04
Filed: 1980-10-28
Granted: 1982-10-05
Abstract: GLASS DOOR MERCHANDISER WITH AMBIENT AIR DEFROST   ABSTRACT OF THE DISCLOSURE           A refrigerated display case having a display section within a cabinet and movable door covering the access opening to such display section.  The cabinet has top, bottom, rear and side walls with an access opening in its front, which opening is covered by the door.  An air conduit extends along the top, bottom and rear walls of the cabinet.  The air conduit has an outlet opening and an inlet opening at opposing ends thereof with the openings being in alignment so that air leaving the outlet opening will be directed towards and received by the inlet opening thereby forming an air curtain across the front opening of the cabinet along the path inside the door.  During a refrigeration cycle of operation of the display case, re-frigerated air is circulated through the air conduit and a refrigeration mechanism arranged within the conduit by a positive pressure air flow so as to establish a refrigerated air band and a refrigerated air curtain across the front opening in the cabinet.  During a defrost cycle of operation, the re-frigeration mechanism is turned off and the door covering the front access opening is slightly opened.  Ambient air is then drawn into the air conduit and circulated through the conduit.          Such ambient air serves to defrost the refrigeration mechanism and the interior of the air conduit.  After defrosting the refrigeration mechanism, the ambient air is expelled through the front access opening of the cabinet since the door has been slightly opened during the defrost cycle.
Patent CA-1135323-A (CA)
Inventor: BECK VERNON D
IPC: H01J31/12
Filed: 1980-11-21
Granted: 1982-11-09
Abstract: MULTIPLE BEAM CATHODE RAY TUBE HAVING     IMPROVED CATHODE-GRID STRUCTURE                     Abstract of the Disclosure A multiple beam cathode ray tube having an improved cathode-grid structure which facilitates grid lead connections and mounting.  The cathode means has a plurality of openings which are arranged in an array pattern which is identical to the desired electron beam array pattern, and has an emitter means associated with each opening for emitting a group of electrons. The grid means is located behind instead of in front of the cathode means and is comprised of a plurality of grid elements mounted on a substrate.  When appropriately biased, the grid elements cause groups of electrons which are emitted by the respective emitter means to flow through the corresponding openings in the cathode in the direction of the screen, thus establishing the required electron beams.
Patent CA-1133890-A (CA)
Inventor: COHEN KENNETH W
IPC: F28D21/00
Filed: 1980-12-16
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE           A heat-reclaiming system is especially adapted for reclaiming heat from used laundry water.  It comprises a heat exchanger providing for heat transfer from warm used laundry water to cold incoming water intended for use as fresh laundry water.  The heat exchanger is formed with interior ducts and an outer shell.  The interior ducts, preferably concentric coils hydraulically in parallel, define a space for the transport through the heat exchanger of the cold incoming water.  The outer shell encloses the ducts, and the ducts and shell together define a space providing for the transport through the heat exchanger of the warm used laundry water.  The flows of the warm and cold water through the heat exchanger are generally in opposite directions.  Maximum heat-transfer efficiency is accomplished by simultaneously pumping both the shell and the duct sides of the exchanger at design flow condition, and maximizing the log mean temperature difference across the heat exchanger.
Patent CA-1154542-A (CA)
Inventor: SEDMAK RICHARD M
IPC: G01R31/28
Filed: 1981-02-10
Granted: 1983-09-27
Abstract: ABSTRACT OF THE DISCLOSURE         The invention provides internal self testing within an integrated circuit chip at all points along the logic chain.  Internal stimulus generators and supervisory control circuits for the generators formed integrally within a VLSI chip are utilized together with integrally formed multiple fault detectors to provide self testing of the logic chain, mechanical inter-connection failures, and power and clock pulse checking.  The invention is utilizable in conjunction with either single or duplicate logic, which latter may be either duplicate complementary logic or duplicate functional logic.  The multiple fault detectors provide a multiplicity of error signals which are multiplexed within the chip to produce encoded output error signals each of which designates the fault which has been detected within the chip.  The invention eliminates the need for sophisticated ancillary test systems for diagnostic and go/no-go or confidence testing for hardware at the chip, board and system level.  In a system these encoded error signals may be routed to error handling logic which receives encoded error signals from a large number of places, such as a group of chips or circuit cards, and by correlating the information contained in the encoded error signals is able to identify the source of the error as a particular VLSI chip, the interconnections between VLSI chips, a particular circuit card, a power supply line to a circuit card or a group of such cards, or other faults
Patent CA-1156772-A (CA)
Title: Photon detector
Inventor: ZERMENO ALFONSO
IPC: H01L31/055
Filed: 1981-02-11
Granted: 1983-11-08
Abstract: ABSTRACT A multilayered detector apparatus for obtaining image information from the  modulation of a uniform flux comprising:  a first conductive layer, a photoconductive layer, an insulating layer and a transparent conductive layer.  The photoconductive layer is thick enough so as to obtain a desired level of sensitivity and resolution of the detector apparatus when the detector apparatus is exposed to radiation.  The photoconductive layer is integrally affixed to and in electrical contact with the first conductive layer.  The insulating layer is a phosphor that emits light when irradiated with X-rays.  The insulating layer is affixed to the photoconductive layer. The transparent layer is affixed to the insulating layer.  This arrangement replaces conventional photographic and radiographic films and produces radiographic images with lower radiation dosages than used in the prior art.
Patent CA-1165844-A (CA)
Inventor: HARRIS WILLIAM G
IPC: H04Q3/54
Filed: 1981-02-20
Granted: 1984-04-17
Abstract: ABSTRACT            A digital telephone exchange including a central processing unit for controlling the switching functions of the exchange and including a fast signal processor connected via a two way bus to the central processing unit, the fast signal processor performing the control functions for the exchange.
Patent CA-1157112-A (CA)
Inventor: JANSEN AUGUSTINUS M
IPC: H04L27/227
Filed: 1981-03-04
Granted: 1983-11-15
Abstract: QUADRIPHASE DIFFERENTIAL DEMODULATOR            Abstract of the Disclosure A method and apparatus for synchronizing a digital data demodulator to a received phase modulation carrier signal in which the carrier signal is phase shifted during each modulation period of the carrier to represent one of four pairs of binary bits or dibits.  A dibit clock is adjusted to the phase of a reference dibit clock whose output is used to synchronize the demodulator in establishing the location of the modulation period of the incoming carrier.  In order to overcome errors found in the decoding of the carrier signal, the adjustment of the dibit clock is suppressed when the dibits 00 and 10 are being decoded.