baber/WOPTO huggingface dataset:
Patent CA-1183581-A (CA)
Inventor: HARFORD JACK R
IPC: H03G3/30
Filed: 1981-04-14
Granted: 1985-03-05
Abstract: Abstract of the Disclosure A gain-controlled amplifier is provided having a broad range of gain control which is traversed by varying the collector impedance of a common emitter coupled amplifying transistor.  The collector load impedance of the transistor includes a controlled resistance device having a base electrode coupled to the collector electrode of the amplifying transistor, an emitter electrode coupled to receive a variable gain controlling current and a collector electrode coupled to a point of reference potential. At signal frequencies, the base-to-emitter junction of the device acts as a resistance which varies inversely with the flow of gain controlling current through the collector-to-emitter path of the device.  Varying the resistance of the base-to-emitter junction of the device varies the collector load impedance of the amplifying transistor, whereby the gain of the transistor is varied by changing its load line as a function of the A.C. resistivity of the device.  The collector-to-emitter path of the device through which the gain controlling current flows is separate from the transistor biasing circuitry, and hence control of the device will not affect the D.C. biasing of the amplifying transistor.
Patent CA-1132917-A (CA)
Inventor: PHILLIPS VICTOR Q
IPC: B01D19/00
Filed: 1981-05-07
Granted: 1982-10-05
Abstract: DEGASSER SPRAY VESSEL     Abstract of the Disclosure.  Gas laden drilling fluid is subjected to shear and turbulence in a unique degassing vessel hav-ing a radial spray mechanism inside the vessel for emitting a con-tinuous radial sheet of fluid spray against the inner surface of the vessel wall.  Means is provided for communicating the gas in the vessel area below the radial spray with the gas in the vessel area above the radial spray.  A resulting vacuum is created in the upper portion of the vessel, at least partially as a result of the radial spray action therein, and the resulting vacuum may be used in other parts of the degassing assembly for increasing the effec-tiveness of the degassing process.   1a
Patent CA-1161055-A (CA)
Inventor: ASHBY BRUCE A
IPC: C07F7/18
Filed: 1981-05-14
Granted: 1984-01-24
Abstract: ABSTRACT OF THE DISCLOSURE    There are provided ultraviolet light absorbing agents of the following general formula   wherein   Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H; Q is - CH2(CH2)nSi(R2)x(OR1)y; and w is -CmH2m+1; where x = 0, 1 or 2, y = 1, 2 or 3, x + Y = 3, R1 = alkyl or alkanoyl having 1 to 6 carbon atoms, R2 = alkyl having 1 to 6 carbon atoms, n = 0, 1 or 2, and m = 1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.
Patent CA-1151405-A (CA)
Inventor: FUKUROI TAKEO
IPC: A44B19/36
Filed: 1981-05-26
Granted: 1983-08-09
Abstract: ABSTRACT OF THE DISCLOSURE      A bridge top stop for slide fasteners comprising: a body including a sidewall inwardly curved to define a substantially inverted U-shaped opening and a pair of plates connected at one edge by the sidewall, each of the plates including a pair of laterally spaced first and second wing portions extending away from said opening and forming in confronting pair together with the sidewall a pair of grooves for receiving therein the reinforced edges, respectively; a bulged rib projecting from the sidewall into the opening and extending longitudinally along the sidewall; and ridges disposed on the respective free ends of the wing portions and extending longitudinally along the grooves respectively for clamping engagement with the stringer tapes.  The bridge presents an improvement over prior art in that it is capable of maintaining a pair of stringer tapes in a predetermined relation even when the stringer tapes are subjected to a relatively severe lateral pull.
Patent CA-1151189-A (CA)
Inventor: KINUGASA HIROAKI
IPC: C07D207/337
Filed: 1981-06-05
Granted: 1983-08-02
Abstract: ABSTRACT            A process is disclosed for the preparation of 5-(p-chlorobenzoyl)-1,4-dimethylpyrrole-2-acetic acid which is effected by heating 5-(p-chlorobenzoyl)-1,4-dimethyl-3-carboxypyrrole-2-acetic acid in the presence of a base.  The compound is a known analgesic and anti-inflammatory agent.
Patent CA-1162860-A (CA)
Inventor: BUCK CARL J
IPC: C08L81/06
Filed: 1981-06-22
Granted: 1984-02-28
Abstract: SULFONATED POLY (ARYLENE ETHER SULFONE) POLYMERS AS DENTAL PLAQUE BARRIERS               ABSTRACT OF THE DISCLOSURE            Compositions and methods for preventing the attachment of dental plaque to the surfaces of the teeth of mammals comprise certain sulfonated poly(arylene ether sulfone) polymers and the pharmaceutically acceptable salts thereof in a pharmaceutically acceptable vehicle, and the periodic application thereof to teeth.
Patent CA-1156881-A (CA)
Inventor: SALAMA AMIR
IPC: C25D5/02
Filed: 1981-06-26
Granted: 1983-11-15
Abstract: Abstract of the Disclosure The treatment of a selected area of a body by a solution is obtained by ejecting the solution towards the body and ejecting gas to control the flow of solution to restrict contact between solution and body to the se   ted area.  The invention is particularly concerned with the plating of part of one surface of a rectangular cross-sectioned pin, for example a terminal pin.  A particular example is the gold plating of one end of one surface of a rectangular terminal pin, while preventing plating of the other surfaces.  Pins, in bandoliers, are carried through a tank, with nozzles on each side.  Solution is ejected at one side and a gas at the other side.  The gas flows round the pins and restricts wetting to one surface of the pin.
Patent CA-1173093-A (CA)
Inventor: DAVIS RAYMOND K SR
IPC: F24H3/00
Filed: 1981-07-13
Granted: 1984-08-21
Abstract: HORIZONTAL PASSIVELY COOLED HEATER            Abstract of the Disclosure A quartz heater, an elongated, rectilinear heating element which lies in a horizontal position in front of a reflector in an improved housing designed to enable the outer surface of the housing to remain cool during operation without the aid of an active cooling system such as a fan or water cooling system.  This is accomplished by drawing cooling air from beneath the heater to bathe both front and rear surfaces of the reflector and further preventing air in the front of the heater from being drawn into the heater.  The cooling air upon entering the interior of the housing is divided into two flow paths, one of which exhausts at approximately a 45° angle toward the front of the heater and the second exhausts directly from the top of the heater.
Patent CA-1179813-A (CA)
Inventor: GELLERT JOBST U
IPC: H05B3/48
Filed: 1981-07-15
Granted: 1984-12-27
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to an improved connector assembly for an electrically heated injection molding sprue bushing and a method of making the same.  The sprue bushing has a helical portion of the heating element extending around a central core portion which conveys pressurized melt from a molding machine to a cavity in the mold.  It is formed by filling the space between the stainless steel core portion and a stainless steel outer sleeve by a highly conductive copper alloy.  The heating element has a lead portion which extends out through an aperture.  The aperture provides a seat which receives two split washers with central openings therethrough for the lead portion.  The washers are each formed of two half washers which are oriented so that the divisions therebetween are not aligned.          A connector sleeve is inserted over the projecting lead portion with a flared end which is received in the aperture against the washers.  The washers and connector sleeve are brazed in position in a vacuum furnace.  This provides an integral connector assembly with sufficient structural strength which is sealed at the aperture against the copper alloy.  This prevents the transfer of excessive heat out to the area of the connection with the external lead wires.
Patent CA-1167836-A (CA)
Inventor: KASSAT HARRY
IPC: F28F9/00
Filed: 1981-07-29
Granted: 1984-05-22
Abstract: O.Z. 0050/034,599 Abstract of the Disclosure:   Desublimator for isolating sublimation products from reaction gases, which consists of a closed housing and a plurality of rows of finned tubes accommodated horizontally and superposedly therein, successive superposed finned tubes being supported, and mutually spaced, with limited adjustability, by means cage-like perforated sliding shoes surrounding them in a box-like manner, the sliding shoes of the individual finned tubes being directly stacked one above the other and resting loosely on common supporting girders anchored to the housing, and the supporting girders having, in cross-section, the outline of a triangle with its apex pointing downward.
Patent CA-1130252-A (CA)
Inventor: TENNEY WILLIAM L
IPC: F04B39/06
Filed: 1981-09-02
Granted: 1982-08-24
Abstract: GAS COMPRESSOR     ABSTRACT OF DISCLOSURE:     A gas compressor drivably connected to an engine operates to supply compressed gas to a tank.  The compressor has a hous-ing including a commercial air cooled internal combustion engine block and cooling air system having a single cylinder chamber accommodating a reciprocating piston.  The piston moves gas through a head and valve assembly connected to an air-to-air after cooler operable to cool and carry cooled compressed gas to a tank.  The head holds the valve assembly on the cylinder.          The valve assembly has a first valving ring allowing one-way flow of gas into the cylinder chamber and a second valving ring allowing one-way gas flow out of the cylinder chamber.  A heat exchange unit is cooled with air moved by the commercial engine air cooling system of the compressor.  The driving engine is of the same make and general type as used for the components of the compressor.
Patent CA-1134178-A (CA)
Inventor: KONTZ ROBERT F
IPC: F16H48/20
Filed: 1981-09-21
Granted: 1982-10-26
Abstract: ABSTRACT OF THE DISCLOSURE           The invention provides a simple, yet highly accurate device for synchronizing the speeds of two power-driven machines having separate, variable speed power-drives.  A pair of shafts are respectively connected to the two machines and mounted in opposed concentric relationship for rotation in opposite directions at rates respectively proportional to the speed of rotation of the two machines.  A differential unit is connected between the two shafts, such unit having equal size input and output sun gears respectively connected to the shafts.  The plane-tary output of the differential unit is connected to a speed control element for at least one of the motors respectively driv-ing the machines to vary the speed of such machine to bring it into rotational synchronization with the other machine.  In ac-cordance with a modification of the invention, if angular syn-chronization is also desired, a one-way clutch is provided between one of the shafts and its respective machine which is disengageable by a minimal torque produced by a difference in the rotational speed of the two shafts, and re-engages only in a fixed angular position when the two shafts are again brought into rotational synchronization.
Patent CA-1170328-A (CA)
Inventor: HOLMAN HOWARD E
IPC: F16B39/22
Filed: 1981-11-23
Granted: 1984-07-03
Abstract: SELF-LOCKING COUPLING NUT     ABSTRACT OF THE DISCLOSURE     A self-locking coupling nut (14) includes a nut surrounding a first shell (12) for threaded engagement with a second shell (66) to secure the shells in mating engagement.  A plurality of balls (52) mounted in the nut are initially engaged with a ball receiving surface (24) on the first shell, and upon threaded engagement between the nut and second shell are cammed outwardly into ball receiving grooves (32) to secure the nut against inadvertent disengagement from the second shell.  Outwardly movement of the balls cams a spring (56) outwardly to provide visual and tactile proof of the locked condition of the self-locking coupling nut.  Threaded engagement of the nut with the second shell also compresses a spring between a thrust ring (20) on the first shell and a retaining ring (44) on the nut.
Patent CA-1156769-A (CA)
Inventor: WILLIAMS CHARLES N
IPC: H01R9/24
Filed: 1981-12-02
Granted: 1983-11-08
Abstract: PACKAGING OF SOLID STATE RELAY                    ABSTRACT          An electrically conductive terminal having barbed por-tions on one end thereof, and a split pig-tail portion on the opposite end thereof. The barbed terminal end is force fitted into an aperture in a plastic housing of the solid state relay. The pig-tail portion extends downwardly into the interior space of the housing and a printed circuit board is inserted over the pig-tail. The pig-tailed terminal end is then spread to hold the printed circuit board within the package.
Patent CA-1180261-A (CA)
Inventor: TSUNASHIMA KENJI
IPC: C09J7/29
Filed: 1981-12-09
Granted: 1985-01-02
Abstract: Abstract of the Disclosure A three-layered laminated film consisting essentially of (A) a center layer consisting of a crystalline low molecular weight polyolefin having an intrinsic viscosity of 0.5 to 1.4 and (B) two surface layers disposed on both sides of the center layer and each consisting of a crystalline polyolefin (b) having a melting point higher than that of the crystalline low molecular weight polyolefin (a), whereby the thickness of the center layer (A) accounts for 30 to 98 %, especially 50 to 85 %, of the total thickness of the laminated film.  The inven-tion also relates to applications of the laminated film.         The laminated film of the invention has excellent finger-tearability and high toughness but little tendency to curl, to whiten when torn, to get turbid and fibrillated, and so forth.  The laminated film is effectively used as an adhesive tape or other applications.
Patent CA-1187293-A (CA)
Inventor: LAWES BERNARD C
IPC: C22B60/02
Filed: 1981-12-22
Granted: 1985-05-21
Abstract: TITLE Measurement of the Oxidation-Extraction of Uranium from Wet Process Phosphoric Acid ABSTRACT OF THE DISCLOSURE In the oxidation-extraction steps in the reductive stripping process (e.g., DEPA-TOPO process) for recovering uranium from wet-process phosphoric acid, efficient use of oxidant is obtained using an mv monitoring of the redox potential during a uranium extraction step to determine an appropriate amount and rate of addition of the oxidant.
Patent CA-1197771-A (CA)
Inventor: CHUNG HAROLD S
IPC: E21B43/17
Filed: 1982-01-13
Granted: 1985-12-10
Abstract: METHOD FOR RECOVERING HEAVY CRUDES FROM           SHALLOW RESERVOIRS            ABSTRACT OF THE DISCLOSURE          This invention provides in the production of heavy oil from a shallow subterranean tar sand bed penetrated by spaced injection and recovery systems, the method comprising:        (a) forming a plurality of horizontal fractures spanning the distance between said injection system and said recovery system, said fractures being spaced apart in a vertical direction with respect to each other throughout the depth of the tar sand bed;        (b) injecting a solvent for heavy oil into said fractures via said injection system, (c) shutting in the injection and recovery systems for a predetermined period of time to form a heavy oil/solvent mixture of reduced viscosity by gravity-driven convective mixing, and (d) recovering said heavy oil/solvent mixture in said recovery system by conventional recovery techniques.
Patent CA-1186520-A (CA)
Inventor: REILLY PATRICK J
IPC: D04B7/08
Filed: 1982-03-31
Granted: 1985-05-07
Abstract: ABSTRACT     Mounted on a frame 10 are a pair of flat needle beds which are disposed in a V-configuration.  Each needle bed includes a plurality of needles 17 which can be extended and retracted by manually grasping parts 23 thereof.  When the needles of both beds are extended, a generally V-shaped recess is defined therebetween along which a yarn to be knitted is laid by hand.          For single knitting (Figure 6), one of the flat needle beds can be omitted and an attachment can be secured to the frame 10 having a plurality of fingers (43) which co-operate with the needles 17 in the remaining bed.
Patent CA-1172782-A (CA)
Inventor: FLEMING JAMES R
IPC: G09G5/00
Filed: 1982-05-18
Granted: 1984-08-14
Abstract: METHOD AND APPARATUS FOR PROVIDING   A VIDEO DISPLAY OF CONCATENATED    LINES AND FILLED POLYGONS            Abstract of the Disclosure A method and apparatus for compactly describing an image made up of concatenated lines or filled polygons. The drawing of lines for the image begins at an initial drawing point determined in a coordinate system defined by a unit screen and proceeds from point to point with the relative coordinates of each successive point specified as a positive or negative step in the horizontal and/or the vertical direction from the previous point.  The step size parameters which separately define both the amount of a change in the horizontal direction and the amount of a change in the vertical direction are initially specified in fractional parts of the unit screen and remain constant in magnitude throughout the operation.  The image is reflected about the horizontal axis and about the vertical axis simply by changing the sign of the step sizes.  Turning on and off the drawing process is also facilitated.
Patent CA-1248270-A (CA)
Inventor: YAMAMOTO NOBORU
IPC: C08K7/00
Filed: 1982-06-07
Granted: 1989-01-03
Abstract: ABSTRACT Polyolefin thermoplastic resin compositions are improved by incorporating therein an ethylene-alpha-olefin copolymer rubber and an effective amount of a particulate or fibrous material selected from talc, mica, and fibrous crystalline calcium silicate having a high aspect ratio at specific ratios. When talc is used, the average particle diameter is 0.5 to 15 microns; when mica is used, the average particle diameter is 1 to 200 microns; and when fibrous crystalline calcium silicate is used, the average particle diameter is 1 to 100 microns.  The crystalline polyolefin is present in an amount of about 20 to 79 wt.%; the ethylene-alpha-olefin copolymer rubber in an amount of about 20 to 50 wt.%; and the filler in an amount of about 1 to 30 wt.%. The incorporation of the copolymer rubber and particulate or fibrous material improves the copolymer's low temperature impact resistance, finishing and moldability properties without sacrificing mechanical properties.  Other properties improved include dimensional stability in molding, paintability, reduced warpage, and improved weld strength.  The improved composition is useful in such applications as automobile bumpers.
Patent CA-1170647-A (CA)
Title: Traction apparatus anchored by means of a securing  pin
Inventor: DESPLATS ANDRE
IPC: B66D3/02
Filed: 1982-07-12
Granted: 1984-07-10
Abstract: ABSTRACT OF THE DISCLOSURE        Each half-case of the apparatus comprises a main half-case of pressed steel sheet provided with two chimneys on which is mounted a reinforcement piece, also of pressed steel sheet, having openings corresponding  to the chimneys. The main half-case and the reinforcement piece separately each receive an anti-corrosion coating. Two symmetrical half-cases are finally fitted together along a longitudinal plane.
Patent CA-1191058-A (CA)
Inventor: WOJTOWICZ WESLEY J
IPC: C10M111/06
Filed: 1982-11-05
Granted: 1985-07-30
Abstract: ABSTRACT OF THE DISCLOSURE          Oil-type, deep drawing lubricants for use primarily on ferrous sheet metal surfaces and the like may consist essentially of a dispersion of from about 2 to 20 parts by weight of a high viscosity liquid polar lubricant dispersed as a discontinuous phase in an anhydrous, hydrocarbon, liquid vehicle of relatively low viscosity with the aid of at least one emulsifying agent. The lubricants preferably contain at least one corrosion-inhibiting agent and at least one agent for facilitating removal of the lubricant composition from the surface of a fabricated workpiece.  The lubricants may be applied to a workpiece at the steel mill or in a blanking line by conventional liquid lubricant application procedure. a thin fills in which the dispersed phase quickly splits from the continuous phase and forms an ultra-thin, adherent film overlaid by a thin film of the material of the continu-ous phase.
Patent CA-1193320-A (CA)
Inventor: GAUDIN DANIEL
IPC: H04B1/04
Filed: 1982-11-24
Granted: 1985-09-10
Abstract: A DEVICE FOR DETECTING THE OPTIMUM ANODE       LOAD IMPEDANCE OF A TUBE TRANSMITTER IN A HIGH               FREQUENCY TRANSMISSION CHAIN     ABSTRACT OF THE DISCLOSURE     A device is provided for detecting the optimum anode load impedance of a tube transmitter, comprising means for phase shifting by k? (with k being a positive or negative uneven  integer) the phase difference existing between the input and output voltages of the tube, means for multiply-ing together the two voltages thus processed and means for calculating the mean value of the product thus obtained, cancelling out this mean value corresponding to the passing of the anode load impedance through a purely resistive  value, which allows the phase matching detection to be made independent of the modulus matching detection.
Patent CA-1200900-A (CA)
Inventor: WARTSKI HEINZ
IPC: G01D3/10
Filed: 1982-11-30
Granted: 1986-02-18
Abstract: ABSTRACT OF THE DISCLOSURE     A system for and a method of recording information concerning vehicle operation comprising a logic circuit interfacing with a microprocessor whereby accurate velocity information can be recorded to provide a precise record of operation, including acceleration and deceleration information, over a period of time.  A transducer attached to a vehicle's transmission produces a number of pulses per second, proportional to vehicle speed.  The number of pulses per second is counted and quantized by a microprocessor into one of sixteen pre-selected speed ranges or velocity quantums.  A number of tests are then performed involving a comparison of the latest range with the immediately preceding ones, and based on this comparison, a decision is automatically made to record or not record the latest range.  Depending on the relationship of the range with the previous ones, the data may be compressed with the previously recorded data.  The results are stored in a memory and can later be called up and printed out.  Because of non-recording of repetitive information, and compression, a long, continuous recording may be stored in a relatively small memory with sufficient accuracy to preserve changes of speed data for acceleration and deceleration information.
Patent CA-1193018-A (CA)
Inventor: SEKINO TAKEO
IPC: H03M1/00
Filed: 1982-12-13
Granted: 1985-09-03
Abstract: ABSTRACT             An analog-to digital converter for converting an analog input signal to a digital out put signal with m upper bits and n lower bits includes 2m+n - 1 resistors for establishing 2m+n reference voltages for comparing with an amplitude of the analog input signal, 2m-1 voltage comparing circuits for comparing the analog input signal with 2n step by step reference voltages, a first encorder for encoding the out put signals of the 2m 1 voltage comparing circuits for generating m upper bits of the digital out put signal, a matrix circuit having 2m(2n-1) voltage comparatous for comparing the analog input signal with left reference voltages of the 2m+n references voltages, other voltage comparing circuits being supplied out put signals of the matrix circuit and a second encorder for encording out put signals of the other voltage comparing circuits for generating n lower bits of the signal out put signal.