baber/WOPTO huggingface dataset:
Patent CA-1141823-A (CA)
Inventor: BAKER RICHARD H
IPC: H03K17/0422
Filed: 1980-05-20
Granted: 1983-02-22
Abstract: ABSTRACT OF DISCLOSURE           A relatively high-power switching device and circuit includes a first VMOS transistor which is turned on for supplying via its channel a first current to the base electrode of a bipolar transistor for turning on the latter into at least an unsaturated conduction state, thereafter a second VMOS transistor (having its channel connected between the collector and base electrodes of the bipolar transistor) is turned on for supplying a second current concurrently with the first current to the base electrode of the bipolar transistor, causing the latter to go into or as close to saturation as possible, depending upon the characteristics of the load, for mini-mizing the power dissipation thereof during a major period of its conductive state.  Turn-off time for the bipolar transistor is minimized by turning off the first and second VMOS transistors in sequential order.
Patent CA-1137808-A (CA)
Inventor: POST JOHN E
IPC: F24F11/76
Filed: 1980-05-26
Granted: 1982-12-21
Abstract: Air Conditioning System and Control Therefor Abstract An air conditioning system comprising a plurality of discharge terminals for discharging conditioned air into a plurality of zones, each terminal including a thermostatic control to directly vary the amount of air discharged into a zone in response to changes in the air temperature thereof. A first selected terminal further includes a primary override control for overriding the thermostatic control of the first selected terminal to increase the amount of air discharged into a first selected zone during a warm-up period.  A second selected terminal further includes an auxiliary override control for overriding the thermostatic control of the second selected terminal to substantially restrict the discharge of air into a second selected zone during the warm-up period.
Patent CA-1130615-A (CA)
Title: Combination vehicle speed and direction control
Inventor: GATSOS STEPHEN L
IPC: B60K17/08
Filed: 1980-06-27
Granted: 1982-08-31
Abstract: ABSTRACT OF THE DISCLOSURE        A combination speed control and transmission forward-reverse control for a lawn tractor, or the like, having an engine including a drive shaft and output pulley, a transmission including a driven input shaft and pulley, and a belt-tensioning, or other similar type clutch.  The control includes an actuating lever mounted on the tractor chassis, and control cables extending between the actuating lever and the clutch, and between the actuating lever and the transmission forward-reverse shift linkage. Movement of the actuating lever in the forward direction shifts the transmission linkage to the forward position and releases the clutch to engage the driving and driven pulleys with one another.  Further forward motion of the actuating lever causes a greater coupling of the driving and driven pulleys to cause the lawn tractor to move forward faster.  Returning of the actuating lever to a neutral position disengages the clutch and moves the transmission shift linkage to neutral.          Movement of the actuating lever in a reverse direction shifts the transmission linkage into reverse gear, and couples the driving and driven pulleys together.  Further reverse move-ment of the actuating lever causes greater coupling of the driving and driven pulleys to move the lawn tractor faster in reverse.  The actuating lever is also coupled to the vehicle brake.  Application of the brake causes the actuating lever, and the transmission and clutch which are controlled by it, to move to neutral.  Similarly, movement of the actuating lever to neutral, in addition to disengaging the clutch and moving the transmission to the neutral position, causes the brake to be applied.
Patent CA-1137163-A (CA)
Inventor: SCHMIDT GEORGE F
IPC: H01M50/489
Filed: 1980-07-08
Granted: 1982-12-07
Abstract: ABSTRACT OF THE DISCLOSURE    An improved battery separator for alkaline battery cells has low resistance to electrolyte ion transfer and high resistance to electrode ion transfer.  The separator is formed by applying an improved coating to an electrolyte absorber.          The absorber, preferably, is a flexible, fibrous, and porous substrate that is resistant to strong alkali and oxidation.  The coating composition includes an admixture of a polymeric binder, a hydrolyzable polymeric ester and inert fillers.          The coating composition is substantially free of reactive fillers and plasticizers commonly employed as porosity promoting agents in separator coatings.  When the separator is immersed in electrolyte, the polymeric ester of the film coating reacts with the electrolyte forming a salt and an alcohol.  The alcohol goes into solution with the electrolyte while the salt imbibes electrolyte into the coating composition.   When the salt is formed, it expands the polymeric chains of the binder to provide a film coating substantially permeable to electrolyte ion transfer but relatively impermeable to electrode ion transfer during use.
Patent CA-1136916-A (CA)
Title: Soil undercutter with pivotally mounted  shank
Inventor: NEUKOM CHESTER G
IPC: A01B61/04
Filed: 1980-07-29
Granted: 1982-12-07
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention relates to a shank assembly for a soil undercutter, which is similar to an extremely wide cultivator shovel which travels underneath the ground and cuts the roots from weeds and plants without substantially disturbing the surface of the ground.  The shank assembly position can be adjusted by changing the length of a link which holds the shank assembly in position.  As shown the link includes a spring trip with a near center type toggle trip release that prevents "floating" and will hold the blade in position until an obstacle is encountered.
Patent CA-1146779-A (CA)
Inventor: STROJNY WERNER
IPC: B23D63/16
Filed: 1980-08-13
Granted: 1983-05-24
Abstract: ABSTRACT OF THE DISCLOSURE        A sharpener for manual sharpening of the cutting teeth of saw chains for chain saws has a depth limiter disposed in front of the cutter in the cutting direction for controlling the depth of the cut.  The cutter is defined by the line passing through a free surface forming the back of the teeth and a cutting face situated on the front of the teeth.  A round file is provided for sharpening the cutter by cutting processing of the cutting face.  The file is adapted to the tooth front with the cutting face in cross-section.  Parallel to the round file, are positioned a guiding rod, which can be placed on the free surface of a cutting tooth to be sharpened, a guiding rod, which can be placed on the free surface of an adjacent cutting tooth, and a second file which can be placed on the depth limiter of the cutting tooth to be sharpened.  The two guiding rods, the round file and the second file with respect to each other corresponds to the geometry of the cutting teeth.
Patent CA-1135732-A (CA)
Inventor: AMANN HANS
IPC: E02F3/92
Filed: 1980-10-20
Granted: 1982-11-16
Abstract: ABSTRACT OF THE DISCLOSURE     A method and device are disclosed for the recovery of sediments from the bottom of the sea by means of a freely suspended suction pipe provided at one end with a suction mouth.   The suction mouth is successively slowly lowered into the sediment to be recovered and is subsequently raised to a height at which it is freely laterally movable.   The device is then shifted a predetermined distance and lowered again to repeat the cycle.   The method according to this invention avoids the problem of the suction mouth laterally sliding into the depression previously formed in the sediment.   The suction head includes loosening means which are construed to exert a low frictional resistance with respect to the sediment during lowering and penetration into the sediment but a high frictional resistance when pulled upwardly therefrom.   Such a device is more versatile with various densities of sediment.
Patent CA-1147211-A (CA)
Title: Convertible bulwark and ramp system for marine  vessels
Inventor: FULTON GEORGE G
IPC: B63B27/14
Filed: 1981-01-13
Granted: 1983-05-31
Abstract: Abstract of the Disclosure A convertible panel system is disclosed that permits conversion of a fishing vessel for different types of fishing and for different stages of fishing of a given type. In the ramp-forming setting of horizontally interconnected panels, a gear-hauling ramp is formed accessible through an opening in the hull and overlying bulwark. Normally in position to cover the reentrancy in hull and deck, the convertible panel system includes a multiple part deck-forming panel that is folded into stowed position beneath the downwardly swing bulwark panel functioning to provide the ramp surface.
Patent CA-1146527-A (CA)
Inventor: BARBE PIERRE L
IPC: F16K3/12
Filed: 1981-06-09
Granted: 1983-05-17
Abstract: ABSTRACT  OF  THE  DISCLOSURE.           In this gate valve, two semi-seal lines between the closure member and the seat cross at the level of the flow axis through the valve.  In this way, the overall axial size and the force for operating the valve are reduced.
Patent CA-1153370-A (CA)
Inventor: RASBERGER MICHAEL
IPC: C09K15/32
Filed: 1981-06-12
Granted: 1983-09-06
Abstract: Abstract Phosphonous acid monoester-monoamides of the formula   in which the symbols R1, R2, R3, R4, R5, R6 and n are as defined in claim 1, are suitable for protecting organic material from the harmful effect of heat, oxygen and light.
Patent CA-1127139-A (CA)
Inventor: VANPEPPEN JAN F
IPC: B01J23/44
Filed: 1981-06-23
Granted: 1982-07-06
Abstract: INVENTION:   PRODUCTION OF CYCLOHEXANONE       INVENTORS:   JAN F. VAN PEPPEN and WILLIAM BERNARD-FISHER             ABSTRACT OF THE DISCLOSURE         A method for promoting the selective hydrogenation of phenol to cyclohexanone in the presence of an improved palladium-on-carbon catalyst which comprises effecting the hydrogenation reaction in the presence of an in situ promoter preferably from the group consisting of sodium hydroxide, sodium carbonate, and sodium phenate.  The characteristic properties of the palladium-on-carbon catalyst used in this process are significantly different from commercially available catalyst, and the present invention involves apparent interaction of the in situ promoter with the present unique catalyst. Respecting safety of operation, it is important that the present process and catalyst permit hydrogenation of phenol in the liquid phase utilizing at least 2, preferably 3 to 8, reactors in series with each reactor maintained at or below the atmospheric boiling point of the reaction mixture in the reactor.
Patent CA-1156304-A (CA)
Inventor: D AUGUSTINE FRANK T
IPC: H01J9/00
Filed: 1981-06-25
Granted: 1983-11-01
Abstract: RCA 74,211 Abstract An automatic apparatus is provided for inserting a mask assembly into a cathode ray tube faceplate panel. The mask assembly includes an apertured shadow mask having at least three springs attached thereto with each spring including an aperture.  The faceplate panel includes a viewing faceplate portion and a peripheral sidewall including         at least three studs embedded therein for engagement with the spring apertures.  The automatic apparatus includes a subassembly at each mask spring location.  At least three of said subassemblies are movable horizontally and include a stop for contacting the lower edge of a mask spring.  Each movable subassembly also includes a locator pin movable between an engaged position and a disengaged position.  The locator pin, when in an engaged position, is spaced from the stop a predetermined spacing equal to a standard spacing between a lower edge of a spring and the centerline of the spring aperture plus a predetermined lifting distance.  Each movable subassembly further includes a fork-shaped member or stud finder centered with the location pins.
Patent CA-1159645-A (CA)
Inventor: YATAKI MASAMICHI
IPC: G01B11/27
Filed: 1981-07-06
Granted: 1984-01-03
Abstract: METHOD AND APPARATUS FOR MONITORING OPTICAL FIBER CONCENTRICITY      Abstract of the Disclosure The eccentricity of an optical fiber core within a transparent fiber jacket is monitored by directing light towards the fiber and obtaining a reflected light intensity profile as a function of the angle at which light is reflected from the fiber.  Any deviation from symmetry of the profile is an indication of eccentricity of the fiber core within the jacket.  The method can be used for in-line monitoring when producing fiber with an extruded jacket.  The technique is substantially simpler than known techniques which require the use of coherent light for generation of optical fringes.                         -i-
Patent CA-1151148-A (CA)
Inventor: EVANS ROBERT W
IPC: E21B4/14
Filed: 1981-07-29
Granted: 1983-08-02
Abstract: DOUBLE ACTING HYDRAULIC MECHANISM                ABSTRACT OF THE DISCLOSURE         A double acting hydraulic drilling mechanism, i.e. drilling jar, is disclosed for use in a tubular drilling string for appling upward or downward jarring forces for dislodging a "fish" from a well. The jar is adapted to be run into a well on a drill string and connected to a fishing tool in the well bore. This jar comprises outer and inner housing members positioned in telescoping relation for longitudinal movement of one relative to the other and having a hammer member on one and an anvil member on the other. The housing members enclose a chamber  adapted to contain a fluid for controlling application of jarring forces. A pair of pistons are positioned in spaced relation for movement of each relative to the other in the hydraulic fluid chamber. The pistons are arranged so that movement of one housing relative to the other in one direction will move the first piston toward the second and movement in the opposite direction will move the second piston toward the first. The chamber between the pistons has an outlet controlled by a suitable valve member. Valve actuating means are provided which are operated upon predetermined relative movement of the housing members in either direction to open the valve to permit flow of fluid from the fluid chamber to substantially eliminate the resistance to further movement of the housing members and thus permit movement of a hammer member into engagement with an anvil member with an impact force. An alternate embodiment utilizes one or both pistons in a dash-pot action in lieu of the valve member permitting fluid flow from the fluid chamber.
Patent CA-1171343-A (CA)
Title: Reagent for the quantitative determination of water and its use therefor
Inventor: VERBEEK ANTONIE E
IPC: G01N31/00
Filed: 1981-08-18
Granted: 1984-07-24
Abstract: REAGENT FOR THE QUANTITATIVE DETERMINATION             OF WATER AND ITS USE THEREFOR Abstract of The Disclosure A reagent for the quantitative determination of water, used together with an iodine-containing titrat-ing solution, the reagent containing sulfur dioxide and an anhydrous alkali metal trimethyl acetate or a mixture of anhydrous alkali metal trimethyl acetate and an anhydrous alkali metal salicylate dissolved in 2-methoxy ethanol, methanol or in a mixture of 2-methoxy ethanol and methanol in a volume ratio of at least 10 to 90.  This reagent is distinguished in that the in-crease of the blind value is minimized even at elevated temperatures.
Patent CA-1149259-A (CA)
Inventor: D ANGELO JOHN A
IPC: F16K1/226
Filed: 1981-09-14
Granted: 1983-07-05
Abstract: Case 246 Abstract of the Disclosure A fire-safe valve structure (10) has a metal seat (52 and 54) with an annular groove (56) therein in which a sealing ring (50) is positioned in face-to-face contact with a valve member (28) movable between open and closed positions. The annular groove (56) has an annular space (66) behind the resilient sealing ring (50) to permit displacement of the sealing ring (50). A shim of fusible material (68), which sublimates at a predeter-mined temperature, is associated with the annular space (66) and holds the sealing ring (50) in contact with the valve member (28), upon sublimation of the sublimable material and subsequent passage of the gaseous sublimable material from the annular space (66), the sealing ring (50) is displaced within the annular space (66) and the valve member (28) moves into a tight metal-to-metal contact with the metal seat (52 and 54).     Case 246
Patent CA-1152859-A (CA)
Inventor: HODGSON ROBERT F
IPC: F15B13/01
Filed: 1981-11-02
Granted: 1983-08-30
Abstract: Abstract A valve structure is provided for use in an integral hydraulic pump and valve assembly having a housing adapted to be integral with a pump housing with spaced apart low pressure and high pressure ports corresponding to the low pressure inlet port and high pressure outlet port of said pump, a low pressure chamber, a high pressure chamber and a cylinder chamber in said having spaced apart and generally parallel to one another, a transverse bore in said housing intersecting said chambers, valve means movable axially in said bore, said valve means having an annular groove intermediate its ends capable of connecting said low pressure and high pressure chambers in a first neutral position, capable of connecting all of said chambers in a second position and connecting only the low pressure chamber in a third position, detent means in said housings extending into said bore and annular groove in the valve member, detent engaging means in said groove intermediate its ends and stroke limiting means extending into the bore and groove on opposite sides of the detent means to engage the ends of the groove when the valve member is moved in opposite directions to limit its movement.
Patent CA-1162704-A (CA)
Inventor: MAY OSCAR W
IPC: D21H17/07
Filed: 1981-11-04
Granted: 1984-02-28
Abstract: ABSTRACT OF THE DISCLOSURE     A mixture comprising a cationic surfactant and a dimethylamide of a straight chain carbon carboxylic acid containing 12 to 18 carbon atoms is useful in the treatment of cellulose pulp to reduce inter-fiber bonding, thus obtaining a low mechanical strength pulp sheet and having little or no adverse effects upon the hydrophilic properties of said fibers.
Patent CA-1165605-A (CA)
Inventor: FITCH ARTHUR H
IPC: G02B27/10
Filed: 1981-11-23
Granted: 1984-04-17
Abstract: D-23,460 METHOD AND APPARATUS FOR MEASURING THE INSERTION LOSS OF                           AN  OPTICAL COMPONENT                                    BY      Arthur H. Fitch Abstract of Disclosure An integrating sphere converts an incident light beam into first and second light beams of the same radiant power.  The first light beam is coupled through an optical component to a first radiometer.  The second light beam is coupled directly to a second radiometer.  The reading P1 on the first radiometer is a measure of the radiant power passed by the component.  The reading P2 on the second radiometer is a measure of the radiant power applied to the component.  The insertion loss of the component is 10 log P1/P2.  In an alternate embodiment, the second light beam is passed through a variable optical attenuator prior to application to the second radiometer.  When the attenuation is adjusted to provide the same readings on the radiometers, the decibel value of attenuation corresponds to the insertion loss of the component.  In another embodiment having increased sensitivity, light having a fixed pulse repetition frequency is applied to the sphere.  Light pulses passed by the component and attenuator are applied to associated ones of a pair of matched photodetectors providing signals that are sequentially applied to a lock-in amplifier, which is tuned to the pulse repetition frequency, for providing clear indications of radiant power incident on the photodetectors.
Patent CA-1130009-A (CA)
Inventor: GRONDALSKI DAVID S
IPC: G06F9/22
Filed: 1981-11-26
Granted: 1982-08-17
Abstract: ABSTRACT        Therein is disclosed high speed digital computer system architecture.  System architecture includes a processor for processing machine language digital data and a memory for storing at least machine language instructions for use by the processor.          Instructions or data are transmitted between memory and processor by memory input and output busses.  Signals are transmitted between computer system and external devices by I/O apparatus.          Instruction pre-fetch circuitry is disclosed for fetching from memory, and storing, instructions in advance of instructions being executed by the processor.  Also disclosed are a high speed memory and memory input and output busses providing high memory bus bandwidth and simple memory bus interface circuitry.          Processor circuitry is disclosed for allowing high speed initiation and execution of instruction sequences.  I/O circuitry is disclosed which allows I/O apparatus to easily adapt to a variety of external devices or to changes in computer machine language or instructions.
Patent CA-1178976-A (CA)
Title: Method and a plant for producing a dry cement  composition
Inventor: RASMUSSEN POUL L
IPC: B28C9/02
Filed: 1981-12-16
Granted: 1984-12-04
Abstract: ABSTRACT OF THE DISCLOSURE          A dry cement composition which, when mixed with water, gives a very low or immeasurable content of dissolved chromate, is prepared by adding ferrous sulphate to cement binder clinker, in amounts from 0.3-1% by weight, in a dry condition.
Patent CA-1184858-A (CA)
Inventor: FIGIEL FRANCIS J
IPC: C23G5/04
Filed: 1981-12-22
Granted: 1985-04-02
Abstract: ABSTRACT APPARATUS AND PROCESS FOR TREATING A FLUID          The present invention provides a novel appara-tus and process for treating a fluid comprising a less dense liquid component and a more dense liquid com-ponent, the components being substantially immiscible in each other, and the less dense component being pre-sent as a contaminant.  In one embodiment, the appara-tus includes a tank (12), a separator chamber (14) and a holding chamber (16).  The separator chamber has an upper portion (26) that converges in an opening (28) leading to a riser tube (30).  The configuration of separator chamber (14) results in rapid separation of overflow liquid into an upper layer of the less dense liquid and a lower layer of the more dense liquid and results in rapid restriction in cross-sectional area of the interface between the upper and lower layers.  In another embodiment of the apparatus, a second separator chamber (89) and a second holding chamber (90) are included.
Patent CA-1174363-A (CA)
Inventor: DEL PRINCIPE ROBERT M
Filed: 1981-12-24
Granted: 1984-09-11
Abstract: Abstract of the Disclosure An electronic football game having controls for two operators, the controls being divided in play calling controls and play actions controls.  The game has a display upon which appear indications representing offensive and defensive players and the ball.  Control circuitry operates in response to the controls to move certain players under operator control and other players under automatic control.  Various of the players under automatic control may be preprogrammed to run selectable specified patterns or to attack specified targets.
Patent CA-1182495-A (CA)
Inventor: PATTERSON DONALD E
IPC: B01F3/12
Filed: 1982-02-09
Granted: 1985-02-12
Abstract: ABSTRACT An apparatus is disclosed for introducing powdered solids into a liquid steam at a controlled rate to form a slurry.  Solids are metered to an eductor where they are educted into the liquid stream.  An automatic cycle timer-controller purges eductor, hopper and piping of residual solids before solids flow is initiated, and following solids flow.  Pressure sensors detect low water pressure and/or plugging shutting off liquid and solids flow.