baber/WOPTO huggingface dataset:
Patent CA-1041783-A (CA)
Inventor: IRELAND THOMAS R
IPC: A44C7/00
Filed: 1975-11-10
Granted: 1978-11-07
Abstract: Thomas R. Ireland EARRING AND EARWIRE FOR USE THEREWITH     Abstract of the Disclosure A pierced earring construction including a hoop-type earring member having spaced free ends and an earwire that is pivotally mounted on one of the free ends, the earwire including a pivot portion that is formed as an integral part thereof and that extends through the free end on which the earwire is mounted for pivotally locat-ing the earwire on said earring member.
Patent CA-1074850-A (CA)
Inventor: JOHNSON RICHARD C
IPC: G03G15/20
Filed: 1976-04-29
Granted: 1980-04-01
Abstract: ABSTRACT OF THE DISCLOSURE     An interface for controlling the energy to a flash lamp based on document information.  An area coverage sensing device senses the density of document information advanced along a predetermined path and produces electrical signals thereof.  A circuit conditions the signals and transmits them to an energy storage for driving the flash lamp.
Patent CA-1062813-A (CA)
Inventor: TURCOTTE RONALD E
IPC: G01V5/10
Filed: 1976-05-17
Granted: 1979-09-18
Abstract: ABSTRACT OF THE DISCLOSURE The present invention pertains to the logging of earth formations by the use of logging instruments that have sources of high intensity nuclear radiation and that are passed through a borehole traversing the earth formation of interest, and, more specifically, to methods and appara-tus for logging in which the source of high intensity nuclear radiation is capable of being pulsed and produces a burst of either photons or neutrons that has a continuous energy spectrum.  For logging purposes previously used sources of nuclear radiation have had one or more of the following disadvantages:  they have been intensity limited by safety considerations; they have had limited energy spectrum capabilities thereby limiting their usefulness, or they have been incapable of pulsed operation thereby limiting the measurements that could be taken.  A method and apparatus for logging an earth formation of interest is disclosed which uses a source of high intensity nuclear radiation that can produce valuable information about earth formation characteristics.  Charged particles are accelerated to high energy levels in a number of individual cavities, and bombard a target to emit nuclear radiation which penetrates the surrounding media.  The nuclear radiation returning to the borehole, as a result of the reaction of the emitted radiation and surrounding media, is detected.  The acceleration of the particles is controlled according to variations of at least one condition in the cavities.
Patent CA-1058724-A (CA)
Inventor: BAILEY RONALD L
IPC: F24F11/02
Filed: 1976-06-07
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE        A sequence controller, employing digital techniques, employs clock pulses to energize and deenergize incremental loads sequentially at spaced intervals to correct the deviation of a sensed condition from a setpoint.  The clock is inhibited from producing pulses when no deviation requiring correction exists.  A feedback provides anticipation for the effect of the energization and deenergization of condition changing loads. Hunting is substantially eliminated.
Patent CA-1048604-A (CA)
Inventor: GROSS THOMAS A O
IPC: H02H3/33
Filed: 1976-08-10
Granted: 1979-02-13
Abstract: S P E C I F I C A T I O N     GROUND FAULT CIRCUIT INTERRUPTER     ABSTRACT OF THE DISCLOSURE   Apparatus including polarity sensing means and a switch such as a Triac for providing a ground fault circuit interrupter system for an electrical load such as a hand-held appliance. The Triac is electrically connected in a completed circuit with the electrical load and is positively positioned in series with the line conductor of an A.C. power source.  Auto-matic testing circuitry such as introducing synthetic and counterbalancing synthetic faults to the system is included.
Patent CA-1062515-A (CA)
Inventor: DEUTSCH RALPH
IPC: G10H7/08
Filed: 1976-08-11
Granted: 1979-09-18
Abstract: Abstract of the Disclosure In a polyphonic electrical musical instrument, waveforms are synthesised using independant, repetitive computation and data transfer cycles.  During the computation cycle a master data set is created by implementing a discrete Fourier algorithm using a stored set of harmonic coefficients which characterize the basic resultant musical tone.  The computations are carried out at a fast rate nonsynchronous with any musical frequency.  Provision is made for time varying the amplitudes of the computational orthogonal functions so that the musical effect of sliding formant filters is generated.  Preferably, the harmonic coefficients and the orthogonal functions are stored in digital form, and the computations are carried out digitally.  At the end of the computation cycle a master data set has been created and is temporarily stored in a data register.  Following a computation cycle, a loading cycle is initiated which transfers the number data set to a collection of read-write memories.  The transfer for each memory is initiated by detection of a synchronizing bit and is timed by a clock which is asynchronous with the main system logic clock and has a freq-uency of Pf, where f is the frequency of a particular note assigned to a memory and P is two times the maximum number of harmonics in the musical waveshape.  The transfer cycle is completed when all of the memories have been loaded, at which time a new computation cycle is initiated.  Tone generation continues uninterrupted during computation and load cycles.  A time shared digital-to-analog converter transforms the output data from the read-write memories to analog voltages assigned to individual tone channels. The digital-to-analog converter is time sequenced with each memory output data conversion to provide attack, decay, sustain, release, and other amplitude modulation effects.
Patent CA-1058032-A (CA)
Inventor: RICE FRANK L
IPC: F24C15/02
Filed: 1976-09-29
Granted: 1979-07-10
Abstract: ABSTRACT OF THE DISCLOSURE                An appliance, such as a domestic oven, with a removable oven door hinged to the appliance. The hinge system includes a pair of hinge mechanisms, where each mechanism includes a stationary bracket supporting a pivoted door guide, a spring-loaded hinged lever carried by the door guide, and a separable mating member in the door for cooperation with the door guide.  The door guide includes a self-supporting wire spring that is operable when-ever there is a partial removal of the door from the door guide to cause a locking action between the door guide and the support bracket.  When the door is reinstalled on the hinge mechanism, the wire spring is unlocked from the support bracket so the door may be closed.
Patent CA-1065241-A (CA)
Inventor: FREY FREDERICK J
IPC: A47C5/12
Filed: 1976-10-28
Granted: 1979-10-30
Abstract: ABSTRACT OF THE DISCLOSURE              A chair or similar article of furniture is provided.  The chair has a front contoured shell having seat and back portions, the shell being provided with a forward surface having the predominant portion thereof disposed rearwardly of the remaining portion of such front surface.          The chair also has a rear contoured shell having seat and back portions.  Finally, the chair has an independent intermediate load bearing matrix of sufficient structural strength to support the weight of the user.  The intermediate matrix has a forward supporting matrix surface portion arranged for corresponding substantial underlying alignment with the remaining portion of the forward surface of the front shell  and out of alignment with the predominant portion of such forward surface of the front shell.  The back portion of the front shell is freely self-disposed in unsecured relation to the matrix.  The shells and the matrix are secured together at the corresponding seat portions to provide a chair formation with the predominant portion of the forward surface of the front shell disposed rearwardly of and spaced from said forward supporting surface portion of the matrix, and said front and rear shells individually and together being of insufficient structural strength to support the weight of the user in the absence of the independent intermediate matrix.  The molded plastic contour chair thus provided has a pleasing aesthetic appearance and provides a safe supporting structure.  The chair is so constructed as to facilitate the adherence of surface cushioning material and upholstery, while concealing unsightly fastening points, so as not to disturb the beauty and line of the chair itself.
Patent CA-1063358-A (CA)
Title: Electronic time signalling device for producing a time signal at a preset time
Inventor: MIKI SHIGENOBU
IPC: G04C9/00
Filed: 1976-11-05
Granted: 1979-10-02
Abstract: ABSTRACT OF THE DISCLOSURE          A time signalling device which includes a clock section for generating an actual time in digital coded form, a time preset circuit for presetting a time to be signalled in digital coded form, a comparator connected to the clock section and to the preset circuit for comparing the actual time with the preset time to produce a coincidence signal when coincidence is obtained therebetween.  A load driving circuit is connected to the comparator for producing a load driving signal  (e.g. for a bell) in response to the coincidence signal for a predetermined length of time.
Patent CA-1094588-A (CA)
Inventor: DONALD JAMES E
IPC: B60G11/16
Filed: 1976-11-05
Granted: 1981-01-27
Abstract: ABSTRACT          A shock absorber utilizing two separating members hingedly attached at their first ends and an arm connected to one of the members to dampen impact shock normally transmitted to a body connected to the other member.
Patent CA-1093162-A (CA)
Inventor: TOWLE ALLISTAIR
IPC: H03D1/06
Filed: 1976-12-13
Granted: 1981-01-06
Abstract: PH 25,102 ABSTRACT         A modulated radio carrier wave detector circuit having high linearity is achieved by incorporating a negative feedback amplifier in the detector load circuit in a manner such that the feedback impedance of the amplifier constitutes the main load circuit of the detector and further the load circuit incorporates at least one linearity compensating diode.  Both high linearity and gain, if desired, are possible with the use of this circuit.
Patent CA-1085006-A (CA)
Inventor: KHALID JOSEPH M
IPC: H01H9/42
Filed: 1977-01-06
Granted: 1980-09-02
Abstract: CURRENT LIMITING CIRCUIT BREAKER                  Abstract of the Disclosure A current limiting iron wire resistor having a transformable resistance for a current limiting circuit breaker.  Each pole of the circuit breaker includes said resistor in parallel with a pair of auxiliary contacts for current limiting which are in series with a pair of main contacts to open the circuit.  The main con-tacts are separable upon operation of a thermally and electro-magnetically operable tripping mechanism, and the auxiliary current limiting contacts separate only on occurrence of a high amplitude fault current above a preselected threshold value.  When that value of fault current is reached, the tripping mechanism and associated components which operate the auxiliary current limiting contacts serves to increase arc voltage almost instantaneously to that of the source, about which time the fault current is totally shunted into the current limiting resistor.  The resistor is formed in a bent-back serpentine shape to reduce inductance of the parallel resistor circuit which would otherwise be very high with the magnitudes of fault current involved, and to also balance the mutual electromagnetic forces among various sections of the resistor.  The resistor also includes integrally formed flattened terminals, and intermediate terminal pieces welded to the flattened terminal of the iron wire resistor between the resistor and the copper conductors leading to and from the resistor at each ter-minal end.  The intermediate terminal pieces have a resistivity characteristic between that of the copper conductors and the iron wire resistor, to help absorb and gradually step-down the very great blow apart forces which would otherwise result from an abrupt transfer of current of great magnitude between a copper conductor of low resistivity and an iron wire resistor of increasingly high resistivity as its temperature rises.  Copper clad stainless steel is suitable for the intermediate terminal pieces.
Patent CA-1063153-A (CA)
Inventor: SIEKANOWICZ WIESLAW W
IPC: H01J31/12
Filed: 1977-03-04
Granted: 1979-09-25
Abstract: FLAT DISPLAY DEVICE WITH BEAM GUIDE     Abstract An evacuated envelope includes front and back walls and a plurality of spaced, parallel supports between, and perpendicular thereto which form a plurality of parallel channels.  A gun structure at one end of the channels directs one or more electron beams along each of the channels.  In each of the channels is at least one beam guide which confines the electrons of the beam but permits selective deflection of the electron beam out of the guide toward a phosphor screen on the inner surface of the front wall.  The beam guide includes electrodes on the inner surface of the back wall and either a single grid plate or a pair of spaced, parallel grid plates spaced from and parallel to the back wall.  The beam guide also includes means for laterally confining the electrons of the beam which may include spaced parallel wires between the back wall and the grid plates and extending along the channel or a special configuration of the electrodes on the back wall.
Patent CA-1040591-A (CA)
Inventor: WRIGHT PETER D
IPC: E04B1/58
Filed: 1977-04-04
Granted: 1978-10-17
Abstract: CONNECTOR                   ABSTRACT OF THE DISCLOSURE       A connector for use in connecting two perforate members at a predetermined angle.  The connector comprises a base plate.  A first catch member on the base plate is able to engage in a perforation in one of the perforate members.  A second catch member on the base plate is able to engage with perforation in the second perforated member when the two members are placed together at the predeter-mined angle.  A third catch member on the base plate is able to engage a perforation in each perforated member that is spaced from a perforation engaged by the first and second catch members.  An offset is formed in the plate between either the first or the second catch member and the third catch member.  The offset is about equal to the thickness of one perforate member.              - i -
Patent CA-1081149-A (CA)
Inventor: SKODA RASTISLAV
IPC: C12M3/02
Filed: 1977-05-27
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE           A method for the mass growth of diploid cells is characterized by the introduction of the cell suspension, the nutrient medium or other solution into a system of communicat-ing chambers via a central supply channel.  The communicating chambers are formed by stacking parallel flat troughs, whose bottoms are arranged substantially vertically and distributed in accordance with the principle of communicating tubes.  The air pressure is equalized via a central aeration and exhaust channel located in the upper part of the system of chambers.           The supply and aeration or exhaust lines are closed and the system is moved to the horizontal position thereby distributing the cell suspension, nutrient medium, or other solution over the useful surface of the substantially horizontal troughs and effecting the growth of the cells.           Upon completion of the growth the system of chambers is restored to the vertical position, and the cell suspension or cell product is recovered.
Patent CA-1119703-A (CA)
Inventor: DOREY JACQUES A
IPC: G01S1/40
Filed: 1977-07-05
Granted: 1982-03-09
Abstract: ABSTRACT OF TIE DISCLOSURE      An aerial radio-navigational beacon for emitting radio-electric signals whose waveform corresponds to that of the signals emitted by a circular beacon comprising an even number, 2i, of pairs of dipoles on a circle and constituting i pairs of dipoles diametrically opposed, switched successively. The beacon of the invention comprises i independent pairs of dipoles, the said pairs being disposed along straight lines parallel to a given direction and being successively excitable, the distances of the dipoles of the pairs excited in succession varying sinusoidally as a function of time.
Patent CA-1084676-A (CA)
Title: Process and device for forming non-woven fabrics
Inventor: BRANDON RALPH E
IPC: D04H1/46
Filed: 1977-07-12
Granted: 1980-09-02
Abstract: PROCESS AND DEVICE FOR FORMING      NON-WOVEN FABRICS ABSTRACT OF THE DISCLOSURE         A process and device useful therein for hydraulic-ally entangling the fibers in a fiber batt to form a fiber-entangled base sheet for a non-woven fabric, and a uniformly and lightly fiber-entangled, base sheet formed by the process.          The process includes applying at least one liquid curtain against the fiber batt while it is supported on a moving, apertured backing screen.  The liquid curtain is uniform in width throughout its length and substantially non-diverging as it is delivered from a source of liquid under a pressure sufficient to effect entanglement of the fibers in the batt.      Preferably, the pressure is at least about 200 p.s.i.g., and the maximum divergence of the curtain is about 4 degrees.          The device for applying the liquid curtain includes first and second members and means for securing the members together to form a chamber therebetween in which the liquid is contained and to form a slot in communication from the chamber to the exterior of the device.  The slot has a substantially uniform width along its length and preferably also a uniform depth.  The securing means are adjustable, so that the width of the slot can be varied, but, once the members are secured together, the width of the slot remains constant as the curtain is delivered from the chamber, through the slot, and against the fiber batt.  The uniformly and lightly fiber-entangled, base sheet is non-apertured and non-streaked and has an entanglement frequency of less than about 20, an entanglement completeness of less than about 0.5 and an internal bond value of less than about 0.1.
Patent CA-1093175-A (CA)
Inventor: STEPNIAK FRANK M
IPC: H01R13/53
Filed: 1977-08-05
Granted: 1981-01-06
Abstract: Abstract of the Disclosure A male contact assembly for high voltage switching ap-plications includes an elongate male contact with an electrically conductive extension arranged concentrically with the contact and extending longitudinally therefrom.  A layer of electrically in-sulative material overlies the contact extension and arc-quench-ing material overlies such electrically insulative layer.   The electrically insulative layer is more resilient than both the extension and arc-quenching material whereby the assembly can withstand greater cantilever stressing prior to fracture of the arc-quenching material than an assembly lacking such resilient layer.   On such fracturing, the electrically insulative layer isolates the contact extension and contact from electrical arc-ing.
Patent CA-1099021-A (CA)
Inventor: LENDER ADAM
IPC: H04L1/24
Filed: 1977-11-04
Granted: 1981-04-07
Abstract: ERROR DETECTOR FOR MODIFIED DUOBINARY SIGNALS by Adam Lender ABSTRACT OF THE DISCLOSURE         A modified duobinary signal is separated into two (odd and even) pulse trains, each of which is representative of a bipolar pulse train.  Each representative bipolar pulse train has a bit rate one-half that of the modified duobinary signal.  Violations of the modified duobinary coding rules appear as violation of the bipolar coding rules.  The bipolar violations which occur are detected separately for the odd and even pulse trains.  The detected errors are read into an error combiner and are read out serially at the original modified duobinary bit rate.
Patent CA-1080800-A (CA)
Title: Apparatus and method for testing electrical surge arresters
Inventor: WOODWARD ROGER P
IPC: G01R31/02
Filed: 1977-11-18
Granted: 1980-07-01
Abstract: APPARATUS AND METHOD FOR              TESTING ELECTRICAL SURGE ARRESTERS                 ABSTRACT OF THE DISCLOSURE         An electrical surge arrester tester comprising two surge arrester test leads and a voltage generator for generating and applying DC voltage of continuously increasing magnitudes to the surge arrester test leads.  A monitor is provided for contin-uously and simultaneously monitoring the magnitude of DC voltages being applied to, and the current being conducted across, the surge arrester test leads.  A counter is provided for digitally recording the monitored firing voltage when the monitored current exceeds a preselected magnitude.  A terminator circuit is provided for terminating the generation and application of voltage by the volt-age generator upon recording of the firing voltage.  A digital display is also provided for displaying the digitally recorded firing voltage.
Patent CA-1089494-A (CA)
Inventor: FISHEL NORMAN A
IPC: C07C/
Filed: 1978-03-02
Granted: 1980-11-11
Abstract: PRODUCTION OF THIOPHENOLS     ABSTRACT OF THE DISCLOSURE             A method for preparing thiophenolic compounds is described comprising reacting a phenol and hydrogen sulfide in the presence of a vanadia catalyst.  It is preferred to carry out the process of this invention at low pressures, i.e. at pressures lower than 100 psi, atmospheric pressure being very suitable, although the process is operable at subatmospheric pressures.  Preferred phenols, catalysts and reaction conditions are also described.
Patent CA-1088586-A (CA)
Inventor: COX DON C
IPC: F16L37/00
Filed: 1978-03-14
Granted: 1980-10-28
Abstract: COUPLING          Abstract of the Disclosure A coupling having two valved sections.  The valves of each section are open when the sections are joined together and the valves close whenever the sections separate.  This abstract is neither intended to define the scope of the invention, which, of course, is measured by the claims, nor is it intended to be limiting in any way.
Patent CA-1086413-A (CA)
Inventor: CASASANTA SALVATORE J
IPC: H02G3/04
Filed: 1978-03-30
Granted: 1980-09-23
Abstract: ABSTRACT OF THE DISCLOSURE         An assembly is disclosed featuring a service pole for installation in a room having an overhead power distribu-tion system.  The service pole itself is attachable and removable from a raceway of the overhead distribution system.          The service pole features an adaptor cap at the top of the pole having plug-in blades for insertion into mating slots of a raceway receptacle.
Patent CA-1105160-A (CA)
Inventor: GLASER WALTER G
IPC: B66B13/22
Filed: 1978-04-19
Granted: 1981-07-14
Abstract: ELEVATOR SYSTEM DOOR TAMPERING      PROTECTION CIRCUITS     ABSTRACT OF THE DISCLOSURE: An automatic elevator system having car movement controls, door controls, a door operating mechanism for automatically opening and closing at least the car door and first switch contacts operable when the car and hoistway doors are closed to permit the car to move from a floor in combination with further switch contacts which are operable in accordance with the positions of the doors and which prevent the car from moving from a floor when the first switch contacts are operated before the further switch con-tacts to prevent movement of the car from a floor when the first switch contacts have been operated or shunted by un-authorized persons or by a short circuit.
Patent CA-1076167-A (CA)
Inventor: BROWN RAYMOND C
IPC: B60B7/00
Filed: 1978-05-17
Granted: 1980-04-22
Abstract: SUBSTITUTE                       REMPLACEMENT               SECTION is not Present Cette Section est Absente
Patent CA-1090018-A (CA)
Inventor: SILVER GARY L
IPC: G21F9/00
Filed: 1978-08-21
Granted: 1980-11-18
Abstract: ABSTRACT OF THE DISCLOSURE      The invention relates to a process for decontaminating or removing radionuclides from aqueous solution.