baber/WOPTO huggingface dataset:
Patent CA-1168740-A (CA)
Inventor: HUTCHINGS THOMAS J
IPC: G01C19/64
Filed: 1980-10-02
Granted: 1984-06-05
Abstract: RING LASER               ABSTRACT OF THE DISCLOSURE           A dithered ring laser particularly adapted for use as a gyro wherein backscatter from the mirrors is minimized by servoing the mirror inward and outward positions so that the sum of the AC amplitudes of the counterpropagating waves is reduced to a minimum value, then further servoing the mirrors to reduce the difference between such AC amplitudes.
Patent CA-1148223-A (CA)
Inventor: WEISE VOLKER B
IPC: H03K3/26
Filed: 1980-10-24
Granted: 1983-06-14
Abstract: D-22,470 FREQUENCY MODULATED FET OSCILLATOR                by Volker B. Weise ABSTRACT OF DISCLOSURE           An FM oscillator of the Colpitts type having one feedback capacitor of the frequency-determining tank circuit connected across the drain-and-source electrodes of a JFET, the other feedback capacitor being connected between the source and a ground reference potential.  A bypass capacitor is electrically connected between the FET gate electrode and ground for electrically connecting the FET gate-to-source junction capacitance across the other feedback capacitor at the resonant frequency of the tank.  A DC bias voltage is established across the gate-to-source junction during quiescent conditions so that a modulation voltage applied to the gate causes the gate-to-source voltage, and thus the associated junction capacitance, to vary so as to produce a relatively linear change in the resonant frequency of the tank as a function of the modulation voltage.
Patent CA-1141417-A (CA)
Inventor: YOUNG ROBERT G
IPC: H01J61/32
Filed: 1980-11-06
Granted: 1983-02-15
Abstract: 48, 242 ABSTRACT OF THE DISCLOSURE A fluorescent lamp having a triple-U-bent tubu-lar envelope is combined with circuit means, a translucent protective cover and a threaded base member to provide an efficient screw-in type lamp unit of high brightness and long life that is compact enough to be used as a direct replacement for incandescent type lamps in fixtures de-signed for residential and commercial lighting.  Various structural  arrangements  for  including  the  ballast  and starter components of the energizing circuit as integral parts  of the  compact  lamp unit,  despite the stringent space limitations,  and also venting the cover and base structures to provide convection cooling of the compacted electrical  components  are  also  disclosed.   Additional cost-saving advantages are afforded by making the triple-U-bent fluorescent lamp a plug-in type component that can be readily removed from the lamp unit and replaced with a new fluorescent lamp, thus permitting the lamp unit to be retained as a permanent part of the lighting fixture and be periodically relamped at minimal expense as required to maintain  the  optimum  amount  of  illumination  from  the electrical energy which is consumed.
Patent CA-1164518-A (CA)
Inventor: FOURNIER JEAN-PIERRE
IPC: F16C39/02
Filed: 1981-02-18
Granted: 1984-03-27
Abstract: ABSTRACT OF THE DISCLOSURE          Bearing Assembly for Rotor Centering Device The invention relates to a rotor centering device comprising two radial bearings each one constituted of first and second opposing members with angular contact races, mounted with axial clearance so that if one of the said members is in abutment, the other member has a radial clearance.  The first angular contact centering members of the first and second bearings are also opposing and the second angular contact centering members of the first and second bearings are likewise opposing, so that by relative axial movement of the inner and outer contact races of both first and second centering means belonging to the two bearings, simultaneous contact of the inner and outer races is achieved either with the first centering members or with the second centering members which happen to be opposing on the two bearings.
Patent CA-1153425-A (CA)
Title: Ground monitoring system
Inventor: VERNIER RICHARD A
IPC: G01R31/50
Filed: 1981-03-12
Granted: 1983-09-06
Abstract: Title:  Improved Ground Monitoring System Inventor:     ABSTRACT           An improved ground monitoring circuit for detecting the integrity and proper connection of the ground conductors in an electrical cable of an elec-trical power distribution system of a type that is commonly used at a surface mining site.  A complete conductive loop is established between the ground conductor, or conductors, and the ground check, or pilot wire of the cable.  A sending signal at a frequency higher than the power frequency is coupled onto the ground monitoring loop.  The monitoring loop includes a terminating resistor of predetermined value.          The sensing signal on the ground conductor in the loop is isolated from local ground by means of an impe-dance element that presents a high impedance at the sensing signal but not at the power frequency.  The impedance element is connected between the ground conductor of the power cable and the local ground.          When successive lengths of cable are series connected, the impedance elements are connected in parallel with each other and are connected from an end of the ground conductor to the local earth ground, thereby to avoid series connections of the impedance elements in the ground conductors.     The voltage and current in the loop are separately sampled. Various comparisons of the voltage and current samples are made to detect any deviation in the resistance of the loop. Any deviations from desired conditions in the loop produce output signal that changes the condition of a trip relay. The trip relay initiates action that ulti-mately opens circuit breakers to remove power from the cable.
Patent CA-1186440-A (CA)
Inventor: MCALLISTER LAWRENCE E
IPC: C08G8/06
Filed: 1981-03-25
Granted: 1985-04-30
Abstract: ABSTRACT OF THE DISCLOSURE    Flame retardant polymer resins formed by an acid condensation reaction from a mixture of resorcinol and furfural with a molar excess of the aldehyde.  In one particular embodiment the resin is formed of a mixture of two prepolymer solutions with at least a boric acid catalyst, one or both of the prepolymer solutions being an acid-condensation reaction product of resorcinol and furfural with excess aldehyde functionality, or one of the prepolymers being a mix of substantially unreacted resorcinol and furfural with a slight molar excess of aldehyde.
Patent CA-1165340-A (CA)
Inventor: KOPONEN VESA
IPC: D21F5/18
Filed: 1981-03-26
Granted: 1984-04-10
Abstract: Over-pressure nozzle for handling web-shaped material Abstract The invention provides an over-pressure nozzle for handling a web comprising:  a nozzle box; two opposing nozzle slots located in an upper part of a compartment bounded by inner walls and an outer wall of the nozzle box, said nozzle slots being so located in relation to a nozzle carrying surface as to form gas jets which, without separating, follow the nozzle carrying surface, said nozzle carrying surface being so curved that a recess functioning as a tranquilization zone, is formed between the nozzle slots, in which tranquilization zone the gas jets flowing to opposite directions meet to form an air cushion which extends over a considerable distance in the web direction and carries the web.
Patent CA-1145172-A (CA)
Inventor: BLASZYK PAUL E
IPC: G02B6/10
Filed: 1981-04-28
Granted: 1983-04-26
Abstract: Abstract of the Disclosure An optical fiber waveguide of the type comprising an outer cladding layer, an axially disposed core of SiO2 doped with GeO2 and a first inner cladding layer of SiO2 doped with an oxide such as P2O5 for lowering the preform pro-cessing temperature.  A second inner cladding layer of pure SiO2 is disposed between the first inner cladding layer and the core to prevent P2O5 from diffusing into the core, thereby eliminating absorption losses from the P-O-H band in the 1.1-1.8 µm region.
Patent CA-1142900-A (CA)
Inventor: DALE ARMAND
IPC: A62B1/14
Filed: 1981-05-06
Granted: 1983-03-15
Abstract: EMERGENCY DESCENT DEVICE            ABSTRACT OF THE DISCLOSURE         This invention relates to a fire escape for high rise buildings.  Cables are automatically lowered from the roof of the building, and once they have descended, brake apparatus is slipped over each cable to be used from various levels of the building.  A person is suspended from each brake apparatus, and is controllably lowered to the ground.  Since the brake apparatus can be attached anywhere along the cable without prethreading, a plurality of persons can be lowered at the same time, and the same cable can be used repeatedly by many people.
Patent CA-1157896-A (CA)
Inventor: VINCIGUERRA COSTANTINO
IPC: F16L33/26
Filed: 1981-05-25
Granted: 1983-11-29
Abstract: FLEXIBLE METAL COUPLING FOR JOINING UNDERWATER PIPES                  LAID AT GREAT DEPTH     ABSTRACT OF THE DISCLOSURE      A pliable metallic joint is disclosed, for underwater pipelines laid at great depths, which essentially consists of a bellows-like section of a pliable metal or alloy, which is externally reinforced by a sturdy metal wire coiling positioned in the valleys of the waves of said bellows and is internally reinforced by interlockingly arranged split rings header collars being welded to the ends of the bel-lows and to the end portions of the pipeline trunks to be conjoined together.
Patent CA-1150108-A (CA)
Inventor: BREDE UWE
IPC: F42C11/00
Filed: 1981-05-27
Granted: 1983-07-19
Abstract: ABSTRACT OF THE DISCLOSURE:           A propellent charge igniter for ammunition which comprises an electrical ignition system and an ignition charge operatively associated therewith housed in a flame-guiding duct, the electrical ignition system being positioned in a middle zone of the flame-guiding duct and being adapted to supply an ignition impulse in both the forward and rearward directions with respect thereto.  And a shell which comprises a cartridge case housing a such propellent charge igniter.
Patent CA-1157701-A (CA)
Inventor: BERG DAVID A
IPC: B62D49/02
Filed: 1981-06-03
Granted: 1983-11-29
Abstract: TOP MOUNTED LIFT RAM FOR TRACTOR                ABSTRACT OF THE DISCLOSURE A top mounted lift hydraulic cylinder on a tractor for a three-point hitch mounted on a removable subassembly to facilitate assembly and convenience in servicing.
Patent CA-1154431-A (CA)
Inventor: CARNAVOS THEODORE C
IPC: F28F1/42
Filed: 1981-07-09
Granted: 1983-09-27
Abstract: HEAT TRANSFER DEVICE                      HAVING AN                AUGMENTED WALL SURFACE     ABSTRACT OF THE DISCLOSURE:     A heat transfer device having an augmented surface is disclosed.  The device comprises a base wall of heat conductive material having a plurality of pyramid-fins formed integrally with the surface of the  base wall.  The pyramid-fins are regularly spaced apart in the range of about 80-500  pyramid-fins per square inch and have a height in the range of .015 to .040 inch.  me base wall is preferably a cylindrical tube and the pyramid-fins are formed as a knurled diamond pattern around the outside periphery of the tube.
Patent CA-1172067-A (CA)
Inventor: NADKARNI ANIL V
IPC: C22C1/10
Filed: 1981-08-24
Granted: 1984-08-07
Abstract: ABSTRACT OF THE DISCLOSURE A process for dispersion-strengthening of atomized alloy particles by internal oxidation is substantially improved by providing atomized part-icles substantially free of oxide surface film to enhance the efficiency of the internal oxidation step.  The atomized alloy particles can be produced by dry collection to prevent oxide film formation, or alternatively, the oxide surface film can be removed by mechanical action removal or by chemical leaching.  The thus formed atomized alloy particles improve the mechanical properties, such as stress rupture strength, of the fabricated material in a final product.
Patent CA-1177233-A (CA)
Title: Procede d'intervention sur une conduite transportant  un fluide notamment sur une conduite immergee
Inventor: QUIN RENE
IPC: F16L55/00
Filed: 1981-08-26
Granted: 1984-11-06
Abstract: Procédé d'intervention sur une conduite de fluide, procédé caractérisé en ce qu'on déplace, au-delà du tronçon à remplacer, des obturateurs introduits à travers des pièces de raccord installées sur ce tronçon, et en ce qu'on coupe ce tronçon entre obturateur et pièce de raccord. Ce procédé s'applique à des conduites immergées.
Patent CA-1176756-A (CA)
Inventor: KESSELS JOZEF L W
IPC: G06F7/22
Filed: 1981-09-08
Granted: 1984-10-23
Abstract: PHN 9831                                   11.3.81 ABSTRACT:         Device for associative searching in a sequential data stream composed of data records.         A device is described for the processing of a data base consisting of a sequence of data records. There are provided a reference memory (140) for a reference data record and a mask memory (142) for a mask data record. In reaction to the successively received data of a data record, these memories can be read in order to activate a comparison. There is provided an indicator element (160) which has a state "provisionally correct" and which is activated by a starting signal produced by the recep-tion of a data record. If the comparison indicates that an impermissible relationship exists between the content of an element of the data record received and the corres-ponding element of the reference data record, the indica-tor element is set  to the state "incorrect". The data re-cord received is meanwhile stored in a data buffer (100, 102). At the end of the reception, the state of the indi-cator element indicates whether or not the data record may be applied to a user. The data buffer may consist of two buffer sections, each for one complete data record, which alternately operate in a read mode and a write mode.
Patent CA-1167244-A (CA)
Inventor: DEY PHILIP
IPC: G02B6/44
Filed: 1981-10-14
Granted: 1984-05-15
Abstract: ABSTRACT             An overhead electric conductor with optical fibres loosely housed in the bore of a central core, which bore also contains a greasy water impermeable medium 4, is manufactured by causing a preformed elongate metal member of U-shaped transverse cross-section and the optical fibres to advance in the direction of their lengths, the rate of advance of the fibres being restrained.  As the U-shaped elongate member is transversely folded around the optical fibres greasy water-impermeable medium is injected into the bore of the elongate metal member under a controlled pressure.  The consistency of the greasy water-impermeable medium the pressure and rate at which it is injected into the bore and the degree of restraint imparted to the optical fibres 3  is such that, in a predetermined length of the conductor, the length of the optical fibres exceeds the length of the bore by a controlled extent, preferably 1 to 3%.
Patent CA-1156455-A (CA)
Inventor: ASAL JERROLD R
IPC: E02F3/76
Filed: 1981-11-04
Granted: 1983-11-08
Abstract: Implement Assembly With Pivot Connection Abstract An implement assembly includes an implement, such as a blade of a work vehicle, connected to a frame through a pivot connection for pivotally supporting the blade. The blade and frame are closely positioned to the front of the work vehicle for maximum stability and balance of the vehicle.  A first apparatus tilts the blade generally vertically and a second apparatus, such as fluid cylinders, moves the blade to selected angular positions relative to the vehicle.  The pivotal connection has first, second, and third pivot axes which allows the blade to tilt and angle in various combinations without binding of the blade.  A subframe is pivotally connected to the frame  and to the second apparatus.  The blade moves along the subframe during tilting, and with the subframe during angling.  The subframe substantially eliminates lateral movement of the fluid cylinders during angling of the blade and provides for mounting of the blade and frame close to the front of the work vehicle.
Patent CA-1163086-A (CA)
Inventor: MAARSCHALKERWEERD JAN
IPC: A61L2/10
Filed: 1981-11-30
Granted: 1984-03-06
Abstract: ABSTRACT           A novel ultraviolet fluid purification or sterilization device is disclosed.  Lamp sections each composed of opposed pairs of fluid impermeable light unit receiving sockets and lamp units therebetween each consisting of an inner, elongate, cylindrical ultraviolet ray emitting lamp and an outer, coaxial and substantially co-extensive cylindrical sleeve, are arranged in parallel rows.  Due to its immersion capability, the array of rows of lamps can be fluid immersed in either an open or closed system.  Moreover, lamp withdrawal fluid impermeable closure means is provided on at least one of each pair of sockets to facilitate lamp withdrawal in the event of burnout.  Each row of lamps can also be modularized to facilitate easy removal of a malfunctioning row of lamps without having to shut down or remove the entire device from its fluid environment.
Patent CA-1177932-A (CA)
Inventor: BALL DAVID N
IPC: G08B17/12
Filed: 1981-12-08
Granted: 1984-11-13
Abstract: ABSTRACT OF THE DISCLOSURE    A fire or explosion detection system for discriminating between radiation produced by a source of fire or explosion to be detected (e.g.a hydrocarbon fire) and radiation produced by a source not to be detected (e.g.an incendiary ammunition and or pyrophoric reaction between an aircraft skin and an inert round) is disclosed.  The radiation detectors are respectively responsive to the intensity of radiation in narrow wavelength bands at 0.96 and 4.4 microns.  Two threshold units produce respective electrical signals only when the outputs of the detectors exceed respective predetermined values.  In addition, a rate of rise unit produces  an electrical signal only when the rate of rise of the output of one of the detectors exceeds a predetermined value.  An output gate receives these three electrical signals and produces an output to a delay unit which in turn produces a fire or explosion indicating output only when the output of the gate continuously exists for at least a predetermined period of time.  It is found that only fires or explosions to be detected will cause the detectors to produce outputs which will maintain the output of the gate for the length of the delay period.
Patent CA-1188213-A (CA)
Inventor: KOUNO SHIGEYOSHI
IPC: B21D28/06
Filed: 1981-12-14
Granted: 1985-06-04
Abstract: ABSTRACT OF THE DISCLOSURE          Apparatus is provided for cutting or blanking from a coiled strip of sheet material a number of pieces in the form of discs, triangles and other shapes.
Patent CA-1206828-A (CA)
Inventor: TSUBOI MASAHARU
IPC: F02B75/22
Filed: 1982-01-26
Granted: 1986-07-02
Abstract: ABSTRACT OF THE DISCLOSURE     An internal combustion V-type engine has a crankcase which is split horizontally on a plane containing the axis of the crankshaft.  Relatively thin stationary webs in the upper and lower crankcase halves are aligned and each pair receives a plurality of fastening elements such as cap screws which extend through the lower half of the crankcase across the horizontal joint and into the upper half of the crankcase.  These pairs of webs are placed at intervals along the length of the crankshaft to support it for rotation.
Patent CA-1175119-A (CA)
Inventor: KASPRZYK DONALD J
IPC: H01C10/14
Filed: 1982-02-11
Granted: 1984-09-25
Abstract: ABSTRACT OF THE DISCLOSURE           An electric thermostat having a knob and potentiometer means with a simple adjusting means to couple the two together.          A single clip means made of a resilient material allows for connecting the knob to the potentiometer and allows for repositioning the knob at will during calibration of the thermo-stat.
Patent CA-1186364-A (CA)
Inventor: SCHMELLER LOTHAR
IPC: H01J29/87
Filed: 1982-03-16
Granted: 1985-04-30
Abstract: PICTURE TUBE WITH PROTECTIVE FACILITY     Abstract of the Disclosure A few sharply defined and irregularly distributed obstacles in the form of inhomogeneities are provided in or at the funnel section of a picture tube. This influences the process of an unavoidable implosion from the very beginning as cracks are formed at the inhomogeneities as a result of the energy accumulation in case of impacts endangering the tube. These cracks propogate immediately to the tube neck, where they result in safe devacuation of the tube.
Patent CA-1175882-A (CA)
Inventor: GIORDANO FRANCIS P
IPC: H04N1/40
Filed: 1982-03-23
Granted: 1984-10-09
Abstract: GRAY SCALE ELECTROSTATIC RECORDING SYSTEM   AND A STYLUS DRIVER THEREFOR                           Abstract An electrostatic gray scale printing system is disclosed having particular utility for producing gray scale images from signals received from a suitable data source such as a computer, tele-communications line, data storage device or the like.  A unique, high voltage, pulse generating circuit is provided for producing gray scale voltage pulses between 300 and 600 volts to the individual styluses making up said printing device. The circuit utilizes a conventional, low voltage, power supply and a low voltage gray scale intensity signal input to produce the required high voltage printing pulses.  The circuit, per se, consists or a high voltage transistor having a relatively large inductance connected in its emitter-collector circuit path.  Current flows in the transistor in response to an input voltage applied to the base of the transistor.  The collector current is proportional to the value of the input signal divided by the emitter resistor.  When the transistor is cut off the inductive tank circuit, including said inductor, produces a high voltage output pulse proportional to the original signal placed on the transistor base.  The width of said output pulse is related to the value of the resistor in the inductive tank circuit which also controls the damping of the output pulse.
Patent CA-1182159-A (CA)
Inventor: VISHNEVSKY VLADIMIR S
IPC: H02N2/00
Filed: 1982-04-07
Granted: 1985-02-05
Abstract: Abstract of the Disclosure A piezoelectric motor of the invention comprises a stator and a rotor one of which includes at least one first piezoelectric oscillator. The rotor consists of a first and a second parts one of which parts includes a second piezoelectric oscillator. Said parts of the rotor are mounted for relative rotation about the axis of rota-tion. The first part is in contact with the stator along the first surface of frictional interaction and with the second part along the second surface of frictional inte-raction. Each surface of frictional interaction is formed by rotation of at least one straight line length about the axis of rotation of the rotor.
Patent CA-1175222-A (CA)
Title: Optical sensing system for extensible tape rules
Inventor: BETENSKY ELLIS I
IPC: G01B3/10
Filed: 1982-04-28
Granted: 1984-10-02
Abstract: ABSTRACT OF THE DISCLOSURE           An optical sensing system for coilable extensible tape rules and the like comprising a movable elongated tape blade having optical markings forming a grid along the length thereof, photoelectric detector means spaced from said grid, a light source for illuminating a portion of said grid as it moves relative to said detector means, an optical mask between said grid and said detector means, objective lens means intermediate said tape grid and said optical mask, said lens means being effective to focus a sharp clear image of said illuminated grid portion on said optical mask whereby said mask provides a uniform modulation of the light image signal through said mask, and field lens means immediately adjacent and downstream of said mask for concentrating the light signal passing through and modulated by said optical mask and directing the concentrated composite signal onto said detector means.