baber/WOPTO huggingface dataset:
Patent CA-1084113-A (CA)
Inventor: STUDTMANN GEORGE H
IPC: H02K17/42
Filed: 1976-08-18
Granted: 1980-08-19
Abstract: ABSTRACT     A background discussion of induction machine equivalent circuits, including operation as an induction generator, is provided.  Selective shorting of the machine terminals is described, to convert at least some of the mechanical input energy into electrical field energy for the machine.  Systems are described for accomplishing the selective shorting with a single-phase machine, including sensing of the zero-crossing of the output voltage to insure that the shorting is effected at the appropriate time to replenish the field.  The shorting time duration can be varied as a function of load. A three-phase shorting circuit is also described.
Patent CA-1062327-A (CA)
Inventor: SKOOG HANS
IPC: H02M7/757
Filed: 1976-09-22
Granted: 1979-09-11
Abstract: Title of the Invention STATIC CONVERTOR                        Abstract of the Disclosure A static convertor with DC terminals for connection to a load object with a variable electromotive force includes a control arrangement for control-ling the direct voltage of the convertor between maximum and minimum values, an arrangement for controlling the minimum value being connected to and de-pendent on the output of a sensing device which senses a quantity correspond-ing to the e.m.f. of the load object. The minimum value is limited to an upper value at which the commutation ability of the convertor is at least as great as the expected maximum direct current.
Patent CA-1055253-A (CA)
Inventor: SASAKI TAKASHI
IPC: B01J23/90
Filed: 1976-09-22
Granted: 1979-05-29
Abstract: ABSTRACT OF THE DISCLOSURE       During use of a contact apparatus to remove harmful components, such as sulfur and nitrogen oxides, from waste gas, dust particles are deposited on the interior of the gas-solid contact zone and reduce efficiency of the apparatus.  The dust particles can be removed by passing through the contact apparatus a current of a carrier gas supporting solid particles of, for example, siliceous sand.  The particles have a diameter of 50 to 2000 µ m and the actual linear velocity of the carrier gas in the gas-solid contact zone is from 2 to 15 m/sec.  The carrier gas can be the waste gas itself so that dust removal can be carried out without interrupting use of the apparatus. The solid particles can be removed from the carrier gas and recycled for further dust removal.
Patent CA-1071072-A (CA)
Inventor: RASHID MOINUDDIN S
IPC: C22C38/00
Filed: 1976-09-24
Granted: 1980-02-05
Abstract: C-2653                                          A-21, 514 FORMABLE HIGH STRENGTH LOW ALLOY STEEL            Abstract of the Disclosure The formability of high strength low alloy steel is improved while strength is substantially maintained or improved by first heating the steel to at least the lowermost eutectoid temperature of the alloy constituents to dissolve a substantial proportion into the austenite and air cooling to substantially lower the yield strength and improve formability without significantly reducing tensile strength.  The steel is then deformed to an amount equivalent to at least 2% strain on the tensile  stress-strain diagram whereby the yield strength is substantially recovered and then heat aged whereby the yield strength and tensile strength are each further raised.
Patent CA-1050396-A (CA)
Inventor: SIMONDS GEORGE D JR
IPC: E02F3/84
Filed: 1976-10-15
Granted: 1979-03-13
Abstract: HYDRAULIC SYSTEM FOR VEHICLE MOUNTED SNOWPLOW BLADE        Abstract of the Disclosure A hydraulic system for a vehicle mounted snowplow blade capable of lifting, lowering, and anpling the blade right or left has a single 4-way valve controlling power flow to the lift and angling cylinders.  Power flow to and return flow from the angle cylinders is controlled through the 4-way valve.  Power flow to the lift cylinder is controlled through the 4-way valve and return flow from the lift cylinder to the reservoir is controlled through a separate two-way valve.  Both valves are electrically operated by means of solenoids connected directly to the valve body.
Patent CA-1066780-A (CA)
Inventor: HOLLAND JOHN M
IPC: G08B25/10
Filed: 1976-11-02
Granted: 1979-11-20
Abstract: RADIO CENTRAL STATION ALARM SYSTEM          Abstract of the Disclosure A radio central station alarm system including a central station and a plurality of remote stations for transmitting alarm signals to the central station by means of radio signals.  Alarm signals are transmitted repeatedly in a sequence which reduces the probability that signals transmitted by one remote station will be completely ob-scured by signals transmitted by other remote stations. A pulse position modulation binary data format is used which simplifies both remote and central station apparatus and facilitates error-free data transmission.  The central station is highly immune to noise and performs a number of tests on received-data signals to reduce or eliminate false or erroneous alarm indications.  Latching alarm sensor circuits are provided for use at the remote stations to insure that all transmission sequences are completed. Protective circuits are provided for disabling any remote station which transmits signals for longer than a maximum allowable transmission interval.
Patent CA-1063671-A (CA)
Inventor: WALKER PAUL L
IPC: H01M10/6567
Filed: 1976-12-07
Granted: 1979-10-02
Abstract: BATTERY HEAT SHIELD AND WINDSHIELD WASHER RESERVOIR                  ABSTRACT          A single unit is provided which serves the dual funct of windshield washer reservoir and storage battery heat shield The unit is a thin walled box-like structure sized to overlie battery.  A portion or all of the sides of the unit are formed to provide a cavity for holding windshield washer fluid.  This cavity, with  or without the presence of fluid, provides extre? effective thermal insulation for the prevention of battery ove? heating.
Patent CA-1115331-A (CA)
Title: Electrographic recording head having integral  recording electrode cleaning means
Inventor: PETERSON DEAN M
IPC: B41J2/395
Filed: 1976-12-22
Granted: 1981-12-29
Abstract: APPLICATION OF                      DEAN M. PETERSON                  ELECTROGRAPHIC RECORDING HEAD                            ABSTRACT    A recording head for electrographic recording has a plurality of flat plate electrodes arranged in a side-by-side relationship on an electrically insulating common support bar.          A recording end of each electrode has a recording pin which is offset with respect to a center line of the electrode while a terminal end of each electrode has an electrical connection terminal.  An air plenum is formed between the support bar and an adjacent cavity in each of the electrodes to allow a supply of air to be supplied to each of the electrodes.  An air passage is formed by a depression in a surface of each of the electrodes between the air plenum and an exterior surface adjacent to the recording pin.  A pair of end plates are arranged to provide an air-tight seal with the ends of the stacked electrodes and to provide hose connection means for admitting air into the air plenum.
Patent CA-1097528-A (CA)
Inventor: HILLER GARY L
IPC: G03C1/498
Filed: 1977-01-10
Granted: 1981-03-17
Abstract: Abstract of the Disclosure Improved photographic speed is provided in a photothermographic material comprising in reactive association (a) photosensitive silver halide, (b) an oxidation-reduction image-forming combination comprising (i) a long-chain fatty acid silver salt oxidizing agent, with (ii) a reducing agent, (c) a synthetic polymeric binder, and (d) a photographic speed increasing concentration of a non-dye, thione speed increasing addendum selected from certain 2-thio-2,4-oxazolidinedione photographic speed increasing compounds.  A developed image having increased photographic speed can be provided in the described photographic material, after imagewise exposure, by heating the element to moderately elevated temperatures.
Patent CA-1097096-A (CA)
Inventor: KNOWLES DAVID A
IPC: A01N25/00
Filed: 1977-01-19
Granted: 1981-03-10
Abstract: ABSTRACT OF THE DISCLOSURE        Herbicidal composition comprising an aqueous solution, having a pH not greater than 5, of a herbicidal bipyridylium quaternary salt containing an alkyl carboxylic acid as a specified odoriferous constituent (e.g. n-valeric, iso- or n-butyric acid) as a deterrent to accidental ingestion.
Patent CA-1072219-A (CA)
Inventor: RUH WOLF-DIETER
IPC: C23F1/02
Filed: 1977-02-09
Granted: 1980-02-19
Abstract: METHOD OF FORMING VIADUCTS IN SEMICONDUCTOR MATERIAL This method of forming viaducts or "through-holes" in semiconductor material for transistor and integrated circuit fabrication and especially for ink jet printing systems forms viaducts of uniform diameter without critical registration of masks. A seed layer of Cr-Au is sputtered onto a silicondioxide substrate.  The viaducts or holes to be made are imaged by a photoresist process with a 5 .mu., thick photoresist on this seed layer.  A 4 .mu. thick gold layer is now applied on the seed layer by a plating process.  After the dissolution of the photoresist this layer contains the hole pattern with the holes having the required diameter.  In order to make a through-hole, the substrate has to be etched. For that purpose, the bare substrate surface is covered with photoresist and exposed from the back through gold holes; and subsequently developed.  Problems owing to light diffraction at the edges of the gold with respect to the great distance of the gold mask photoresist layer are not anticipated here because of the large holes and the high tolerances in this process step.  Prior to etching the substrate, the gold layer with the hole pattern is covered by photoresist so that the substrate etching can take place from one side only.  Now the substrate is etched until all of the gold holes are free.  In that process, the extent of the substrate sub-etching is of small importance as the viaduct or hole diameter is defined by the gold mask.  The photoresist is removed and the exposed substrate surfaces are protected against chemical reactions with the ink by a vapor-deposition of a protective layer.
Patent CA-1076616-A (CA)
Inventor: WATTS JAMES P
IPC: E21C41/00
Filed: 1977-03-14
Granted: 1980-04-29
Abstract: ABSTRACT OF THE DISCLOSURE    A method and apparatus for strip mining is provided.  A plurality of vertical shafts of square cross section are formed closely adjacent to one another with each shaft extending through overburden and a layer of valuable material, e.g. coal.  As spoil is removed in forming one shaft it is conveyed to a previously formed shaft and deposited therein.          The apparatus includes a casing of square cross section, a cylindrical auger casing within the square casing, an auger rotatable in the auger casing and a square cutter at the lower end of the square casing.  The latter is slidably mounted on a vertical track and is power driven vertically to force the cutter into the earth formation being worked.          The auger is rotated under power to cut into the earth formation and remove spoil and coal therefrom.  The upper end portions of both casings are formed with two sets of aligned discharge ports.  A movable closure is provided for each set and a rake for each set.  A conveyor for spoil has one end connected to the outer port of one set while a conveyor for coal has one end connected to the outer port of the other set.  When one set is closed, the rake associated therewith is in an inoperative position.          When a set of ports is open, the rake associated therewith extends into the uppermost convolution of the auger.  In this manner, strip mining is efficiently carried out while satisfying todays environmental requirements manner by depositing the overburden in a previously formed shaft.
Patent CA-1048484-A (CA)
Inventor: BEHRENDS BERTWIN E
IPC: B66D1/44
Filed: 1977-04-28
Granted: 1979-02-13
Abstract: FLUID PRESSURE-CONTROLLED      WINCH MECHANISM        Abstract of the Disclosure A winch drum carrying a cable is supported by drive mechanism which includes a normally disengaged drive input clutch that is engageable in response to pressurized fluid to reel in cable.  A normally engaged disconnect clutch dis-engages in response to fluid pressure to free the drum for rotation independently of the drive mechanism.  A normally engaged brake immobilizes the drive mechanism except when released by fluid pressure.  A control valve provides for directing pressurized fluid to appropriate ones or combina-tions of the clutches and brake as necessary to establish any of four operational conditions including Reel-In, Brake-On, Brake-Off and Disconnect modes of operation.  A check valve between the flow lines that connect the control valve to the input clutch and to the brake- assures that there is no momentary overlapping of engagements of both the input clutch and the brake when the Reel-In mode of operation is initiated or terminated.
Patent CA-1054652-A (CA)
Inventor: EVANS D
IPC: B60K15/07
Filed: 1977-05-03
Granted: 1979-05-15
Abstract: MOUNTING ASSEMBLY FOR A CONTROLLABLY MOVABLE FLUID TANK     A B S T R A C T       A fluid tank apparatus has mounting structure in-cluding linkage assemblies for moving the tank between first and second positions in response to moving a pivotally movable structure of the vehicle.  The mounting structure is of a construction sufficient for maintaining the tank at substantially a preselected attitude at and between said first and second tank positions.
Patent CA-1088192-A (CA)
Inventor: SCHAEFER DONALD L
IPC: H01L31/12
Filed: 1977-06-15
Granted: 1980-10-21
Abstract: ABSTRACT OF THE DISCLOSURE             Optoelectronic devices perform functions under control of light energy striking a light-sensitive area of the devices. A flexible light pipe with a connector matching a counterpart at the optoelectronic device guides light energy from a light source to the optoelectronic device, avoiding the requirement for a fixed arrangement of light source and optoelectronic device.
Patent CA-1095631-A (CA)
Inventor: LITOVCHENKO SERGEI S
IPC: G06K7/14
Filed: 1977-07-20
Granted: 1981-02-10
Abstract: METHOD FOR READING INFORMATION FROM PUNCHED CARRIER      AND DEVICE FOR EFFECTING SAME               Abstract of the Disclosure A method for reading information from a punched carrier, according to which a radiation flux emitted by a radiation source is modulated by information holes of the punched carrier and then additionally modulated by an add-itional modulation means, whereupon the double-modulated radiation flux is reflected by a reflector to a photosensitive input of a main converter which converts the radiation flux into a primary information signal.  The primary information signal is then compared to a reference signal which changes according to the law of additional modulation, whereupon the preset signal is discriminated.  The proposed device for carrying out the foregoing method of reading information from a punched carrier having synchronization and information holes comprises a radiation source optically connected to a reflector through the information holes of the punched carrier, as well as through an additional modulation means.  The latter provides for additional modulation of the radiation flux modulated by the information holes of the punched carrier and at the same time can perform the functions of the reflector.          The device further includes at least one information channel having a main converter whose output is connected via a main amplifier unit to a synchronizing input of a comparator.  The latter comprises a recognition circuit and a preset information signal discrimination circuit; the two circuits are placed in series.  The photosensitive element of the main converter is optically connected to the reflector.  The main converter con-verts the radiation flux into primary information signals which are sent to the comparator.  The latter compares the primary information signals with a reference signal applied thereto from a reference signal source and changing according to the law of additional modulation.
Patent CA-1074856-A (CA)
Inventor: ALMERINI ACHILLE L
IPC: H01M6/16
Filed: 1977-11-14
Granted: 1980-04-01
Abstract: ABSTRACT OF THE DISCLOSURE     A lithium-organic electrolyte electrochemical cell is provided in which Lithium is the anode, a fluorographite of the formula CxF wherein x is a value no less than one and no greater than 4.5 is the cathode, and a solution of about 0.5 molar to 1.5 molar of an inorganic lithium salt in a lower alkyl acetate is the electrolyte.     '
Patent CA-1086818-A (CA)
Inventor: BURANT LEONARD J
IPC: H01M6/34
Filed: 1977-11-17
Granted: 1980-09-30
Abstract: DEFERRED ACTION BATTERY HAVING IMPROVED BOTTOM PORT COVER  ABSTRACT OF THE INVENTION    A deferred action battery including a plurality of stacked electrode plates functional to produce an electrical potential when immersed in seawater, the battery having a bottom port cover including an opening for admitting seawater into the battery and a cavity in communication with the opening and intended to facilitate migration of precipitate waste material from the battery during its operation.
Patent CA-1144755-A (CA)
Inventor: RYAN JOHN W
IPC: G09B9/048
Filed: 1977-11-24
Granted: 1983-04-19
Abstract: ABSTRACT OF THE DISCLOSURE            A toy vehicle is provided for use in a toy vehicle game including an endless track defining at least two parallely extending vehicle lanes in which two or more toy vehicles are adapted to be operated.  The toy vehicles each include a reversible rotary drive motor and a transmission operatively engaged between the motor and two drive wheels for rotating one or the other of the drive wheels in response to the direction of rotation of the drive motor, thereby biasing the car against one or the other of the side walls of the track to guide the vehicle along its path of travel in one or the other of the lanes.  The track includes electrical contact strips which supply power to the drive motor of the vehicles through current collectors mounted thereon.  A control system permits the operators to separately and inde-pendently control current to the contact strips and also to selectively reverse the polarity of the current so that the operators can vary the speed of their associated vehicles and cause the vehicles to move from one lane to the other.  In one form of the invention an additional toy vehicle operated as a drone car at constant speed is provided presenting an obstacle along the track which the players must pass by properly controlling their respective toy vehicles.
Patent CA-1093163-A (CA)
Inventor: SUZUKI TADAO
IPC: H03F3/18
Filed: 1977-11-28
Granted: 1981-01-06
Abstract: AMPLIFIER                   ABSTRACT OF THE DISCLOSURE            An amplifier comprised of a field effect transistor whose gate electrode is adapted to receive an input signal.           An impedance converter couples the input signal to the gate electrode of the field effect transistor, the impedance con-verter being formed of n impedance converting stages, each stage having a relatively low output impedance.  A voltage limiting circuit is connected between the source of input signal and the gate electrode of the field effect transistor so as to limit the forward biasing of the field effect tran-sistor.  This voltage limiting circuit includes m voltage-limiting elements, wherein n and m are integers (1, 2, 3, ...) and n is equal to or greater than m.  In a preferred embodiment, the amplifier is formed of two field effect transistors connected in push-pull relation, each field effect transistor being pro-vided with an impedance converter and a voltage-limiting circuit as described above.         -i-
Patent CA-1085068-A (CA)
Inventor: HIMSLEY ALEXANDER
IPC: B01J47/10
Filed: 1978-02-02
Granted: 1980-09-02
Abstract: Abstract In an ion exchange process for recovering valuable components from a weak feed solution containing impurities, an improved loading of the desired component on the resin and a purer and more concentrated eluate can be obtained by subjecting the resin to a conditioning step after the step of exhaustion of the feed solution onto the resin and before the resin elution step.  In the conditioning step, a pre-determined isolated quantity of the loaded resin is contracted with a conditioning solution capable of preferentially removing the unwanted impurity component.
Patent CA-1079705-A (CA)
Inventor: MONG WILLIAM K
IPC: F16K24/02
Filed: 1978-02-02
Granted: 1980-06-17
Abstract: VENTED BALL TYPE ANGLE COCK                ABSTRACT OF THE DISCLOSURE    This invention relates to a vented ball-type angle cock for use at each end of the brake pipe on a railway vehicle in which the brake pipe hose connected to the angle cock outlet is vented to atmosphere in the cock closed position via a drilled passageway extending through the ball valve, a guide bushing carried by the ball valve, and a trunnion on one end of which is rotatably supported the bushing, the opposite end of this trunnion being supported on the bottom of the cavity in the angle cock body in which the ball valve is so disposed that in its open position a communication is established between the brake pipe end the hose that is connected to the hose at the adjacent end of the brake pipe on the next car in a train.
Patent CA-1093991-A (CA)
Inventor: HIROHARA HIDEO
IPC: C12N11/10
Filed: 1978-02-15
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE         Enzymes are immobilized by a process wherein the carrier used for immobilizing is a hydrophilic pullulan gel having a three-dimensionally reticulated structure obtained by the reaction between pullulan and a bifunctional compound capable of forming an ether linkage with the hydroxyl group contained in the glucose unit of pullulan, or an ionic pullulan gel obtained by the reaction between said hydrophilic pullulan gel and a compound having at one end an ionizable group and at the other end a functional group capable of forming an ether linkage with the hydroxyl group in the pullulan gel in the presence of an alkaline compound.  Immobilized enzymes prepared according to this process have a high activity and good retention of the activity.
Patent CA-1083999-A (CA)
Inventor: SATAKE TOSHIHIKO
IPC: B07B13/00
Filed: 1978-02-20
Granted: 1980-08-19
Abstract: ROTARY CYLINDER TYPE GRAIN SEPARATOR            ABSTRACT OF THE DISCLOSURE         A rotary cylinder type separator comprises a slightly tiltable, horizontally installed rotary cylinder, a plurality of combs secured to the inside of the cylinder, in parallel and substantially axially of the cylinder, a feeder for introducing a mixture of grainy material and impurities into the cylinder at one end, an outlet formed at the other end of the cylinder for discharging the grainy material out of the cylinder, and a device for discharging the impurities larger in size than the grainy material and that have been scooped by the combs to a high level and have thence fallen within the cylinder.  The last-mentioned device is a fan for producing an air blast within the cylinder, or a combination of a stationary collection trough inserted axially through the cylinder for receiv-ing the impurities that fall from the high level, and a screw conveyor mounted inside the trough.