baber/WOPTO huggingface dataset:
Patent CA-1138730-A (CA)
Inventor: BALTZ GENE F
IPC: F02D7/00
Filed: 1980-05-15
Granted: 1983-01-04
Abstract: ABSTRACT OF THE DISCLOSURE     An internal combustion engine comprises a combus-tion chamber and a crankcase which extends from the combustion chamber.  A primary fuel delivery system introduces fuel from a fuel source into the combustion chamber, and a primer fuel delivery system is selectively operable for introducing fuel from the source into the combustion chamber in addition to fuel which is intro-duced by the primary fuel delivery system.  A collector assembly communicates with the crankcase for accumulat-ing residual fuel from the crankcase, and a residual fuel delivery system supplies fuel from the collector assembly into the combustion chamber.  A control valve mechanism is connected to the primer fuel delivery system and the residual fuel delivery system for blocking the supply of fuel by the residual fuel delivery system during operation of the primer fuel delivery system.
Patent CA-1127508-A (CA)
Title: Adjustable portable saw guide device
Inventor: GENGE CHARLES A
IPC: B27G19/10
Filed: 1980-06-05
Granted: 1982-07-13
Abstract: ABSTRACT      Apparatus for guiding a power circular saw across a work-piece and effecting splinterless cutting thereof and having a saw guide assembly with a shield member, a base member, the guide assembly being in operative association with the workpiece.
Patent CA-1145167-A (CA)
Title: Centrifugal brake for a gyroscope with cardan suspension
Inventor: CHOMBARD PIERRE A
IPC: G01C19/26
Filed: 1980-07-03
Granted: 1983-04-26
Abstract: ABSTRACT OF THE DISCLOSURE     A centrifugal brake for a gyroscope with Cardan suspension in a fixed housing on a mobile support includes two weights, identical, of C shape, mounted in opposition on two, diametrically opposed cylindrical articulation pins or axles 6.          The two weights form, by their construction, a ring in two identical parts permanently bearing on one another under the action of a spring.  The weights are freely articulated, forming by simple construction an autocompensated brake against the inertial forces generated by combined accelerations of the support.
Patent CA-1138887-A (CA)
Inventor: COOK JAMES A JR
IPC: C07C/
Filed: 1980-07-25
Granted: 1983-01-04
Abstract: ABSTRACT OF THE DISCLOSURE        Chlorothiolfromates area prepared by reacting a mercaptan with phoagene in the presence of a catalyst selected from a group consisting of (1) secondary amine and (2) secondary amine hydrochloride.
Patent CA-1152152-A (CA)
Inventor: WIRTH WILLIAM F
IPC: H02M7/537
Filed: 1980-08-26
Granted: 1983-08-16
Abstract: Abstract:         Faulted bipolar transistors in a voltage source transistor inverter are protected against shootthrough fault current, from the filter capacitor of the d-c voltage source which drives the inverter over a d-c bus, by interposing a small choke in series with the filter capacitor to limit the rate of rise of that fault current while at the same time causing the d-c bus voltage to instantly drop to essentially zero volts at the beginning of a shootthrough fault.  In this way, the load lines of the faulted transistors are effectively shaped so that they do not enter the second breakdown area, thereby preventing second breakdown destruction of the transistors.
Patent CA-1128493-A (CA)
Title: Knuckel joint spearhead core  drilling apparatus
Inventor: RUNK TERRY M
IPC: E21B25/02
Filed: 1980-09-17
Granted: 1982-07-27
Abstract: KNUCKLE JOINT SPEARHEAD CORE DRILLING APPARATUS       ABSTRACT OF THE DISCLOSURE        Core drilling apparatus that includes a wire line core barrel inner tube assembly movable through a drill stem to be seated in a latched core taking position adjacent the drill stem core bit and an overshot assembly coupled to the inner tube assembly for lowering and/or withdrawing the inner tube assembly in the drill stem.  The inner tube assembly includes an overshot coupling assembly having a base member extended into the latch release tube for limited movement relative thereto, a spearpoint subassembly connected to the base mem-her for pivotal movement through an angle of about 180° about a  transverse pivot axis, and a detent plunger resiliently mounted by the subassembly to extend into a base recess when the central axes of the base and coupling members are nearly aligned to retain said members in relative positions that their axes are aligned, and to abut against a base tapered surface when the subassembly central axis is at a substan-tial angle relative the base central axis.
Patent CA-1132231-A (CA)
Inventor: GLASS JEREMY M
IPC: G01S15/32
Filed: 1980-10-06
Granted: 1982-09-21
Abstract: RANGE TRACKER UTILIZING SPECTRAL ANALYSIS     Abstract A radar system transmits a signal to a target wherein the frequency is modulated with a sinusoidal modulation pattern.          The difference between the actual target range and an estimate thereof is subjected to a spectral analysis wherein the spectral terms are described by Bessel functions.  A second order range tracking loop, responsive to the relative magnitudes of the spectral terms, and an estimator of target radial acceleration, responsive to successive values of the spectral terms, provide components of the range estimate.
Patent CA-1156311-A (CA)
Inventor: STEPHEN DAVID D
IPC: G01R33/12
Filed: 1980-10-15
Granted: 1983-11-01
Abstract: TUBULAR GOODS GRADE MEASURING DEVICE       Abstract of the Disclosure This invention pertains to two forms of verifier of the grade of oil field tubular goods.  The first form can be thought of as a sorter in that it will indicate when a particular length of tubular goods is of a different grade than its companions in a lot.  The second form will identify the grade of a length.  Both forms depend upon magnetizing or inducing magnetic eddy currents in the pipe which are detected and handled by the invention circuitry to sort or to identify.
Patent CA-1145033-A (CA)
Inventor: RYAN JOHN O
IPC: H03F1/34
Filed: 1980-11-13
Granted: 1983-04-19
Abstract: ABSTRACT OF THE DISCLOSURE         A light emitting diode is modulated by the output signal of a F.E.T. amplifier, and the resulting light signal is fed back to the amplifier input via an optical fiber and a light detecting photo diode.  Thus, current feedback is achieved with very flat frequency response over a full frequency band by modulating a light emitting diode with the preamplifier output signal, reconverting the resultant radiation to an electrical signal, which is then fed back to the preamplifier input.
Patent CA-1144085-A (CA)
Inventor: MICHELE HELMUT
IPC: C02F1/44
Filed: 1980-11-19
Granted: 1983-04-05
Abstract: ABSTRACT OF THE DISCLOSURE     The separation of different components of a fluid, e.g. of He, H2, O2' or the like from gaseous mixtures, separation of saturated and unsaturated hydrocarbon, water separation from organic mixtures, waste water purification etc., is ef-fected by passing the treated fluid over a row of permeation cells each formed by a container subdivided, by a wall more readily permeable by one component of the fluid, into an inlet chamber and a permeate chamber.  The respective chambers are arranged in series directed opposite to each other and the respective products withdrawn at the respective ends of the series.  A part of the product of the permeate chamber series is fed back into the inlet chamber series.  Preferably, the interconnection of the inlet of untreated fluid into the inlet chamber series is effected at a point selected such as to ob-tain a smallest possible difference in the concentration of respective component in the incoming untreated fluid and in the fluid circulated through the system.  A number of combin-ations of the basic unit of the method is disclosed.  The invention results in reduced every and permeable area require-ments by limiting the volume of recirculated fluid and by strategic location of the inlet of untreated fluid.
Patent CA-1148442-A (CA)
Inventor: FIELDS LARRY D
IPC: F16K11/044
Filed: 1980-11-20
Granted: 1983-06-21
Abstract: ?P-37/132 ABSTRACT OF THE DISCLOSURE    The improved valve assembly comprises, in combination, a housing having an elongated central passageway and a plurality of spaced ports in the sidewall thereof along the length thereof in communication with the passageway, an elongated drive shaft disposed in the passageway and movable between a resting position and an actuated position, first biasing means biasing the shaft into the resting position, a plurality of valve openings along the length of the passageway and providing communication between adjacent ones of said ports, a plurality of free floating valve sealing elements disposed transversely on, secured to and spaced along the shaft in the housing, each said element being disposed between two adjacent valve openings, second biasing means in the housing around the shaft biasing the valve elements apart on the shaft, and actuator means connected to the housing for hydraulic pressure movement of the shaft between the resting position where-in a first spaced set of the valve openings is closed by the valve sealing elements and the actuated position wherein a sep-arate second spaced set of the valve openings is closed by the valve sealing elements.  The biasing means may be coil springs and each valve sealing element may be a disc bearing valve seal-ing surfaces on opposite sides thereof.  The improved valve seal-ing element may include a reinforcing component having a number of apertures extending through it, as well as a central opening, and a plastic enclosure molded around and encapsulating the rein-forcing component, extending through the apertures and bonded to the reinforcing component.  The reinforcing component includes reinforcing ribs around the central opening.  The valve sealing element is disc shaped and adapted to receive a valve drive shaft through the central opening.  The reinforcing component has a hardness at least 50% greater than that of the enclosure.  The reinforcing component may be, for example, nylon and the enclos-ure may be, for example, polyurethane.  The valve sealing ele-ment and valve assembly are inexpensive, durable and efficient.
Patent CA-1159069-A (CA)
Inventor: THIEME PETER C
IPC: C07D271/10
Filed: 1981-01-30
Granted: 1983-12-20
Abstract: O.Z. 0050/034290 Abstract of the Disclosure:  Novel phenylpiperazinyl-propanols of 1,3,4-oxadiazolylphenols and their physio-logically tolerated addition salts with acids, processes for their preparation, and pharmaceutical formulations which contain these compounds and are useful in the treatment of hypertonia.
Patent CA-1173913-A (CA)
Inventor: SPURRELL ROWORTH A J
IPC: A61N1/36
Filed: 1981-03-19
Granted: 1984-09-04
Abstract: TWO-PULSE TACHYCARDIA CONTROL PACER          .            Abstract of the Disclosure There is disclosed an improved pacer for con-trolling tachycardia.  Prior art pacers of this type generate a stimulus a short time, known as the "initial delay", after confirmation of tachycardia.  The initial delay is "scanned" from one extreme to the other until the condition is terminated.  In some pacers of this type, a second stimulus is generated at a fixed time, known as the "coupled interval", after the first stimulus; the second stimulus sometimes terminates the condition even if the first does not.  In the improved pacer, the coupled interval is scanned as well as the initial delay. Also, the time parameters which are successful in ter-minating the condition are stored so that upon confirmation of another tachycardia event, the previously successful time parameters are the first ones to be tried.  The unit also allows tachycardia to be induced by the physician so that the parameters which are programmable can be ad-justed for optimum performance following a subsequent naturally occurring tachycardia confirmation.
Patent CA-1155940-A (CA)
Inventor: BELL JOHN M
IPC: H01B11/00
Filed: 1981-04-09
Granted: 1983-10-25
Abstract: ELECTRICAL CONDUCTOR FOR TELECOMMUNICATIONS CABLE   Abstract of the Disclosure Insulated electrical conductor for telecommunications cable in which two layers of insulation are provided.  The inner of the two layers is a solid non-cellular construction and the outer layer is cellular.  The nominal mutual capacitance between the conductor and an identical conductor is at a desired value with a dielectric breakdown value between conductors above a desired minimum value while having an outside diameter across the insulation which is less than for a conductor of the same gauge which  provides the same mutual capacitance and has a solid insulation of the same material as the inner layer.                             - i -
Patent CA-1162641-A (CA)
Inventor: KWOK SAI W
IPC: H04B1/74
Filed: 1981-04-27
Granted: 1984-02-21
Abstract: D-23,215 RF TRAP FOR A          CABLE TELEVISION TRUNK AMPLIFIER STATION by Sai W. Kwok Abstract of Disclosure An amplifier station in a trunk cable comprises a ground plane enclosure housing a length of first transmission line and a length of second transmission line having a passband amplifier in it.  First and second relays at opposite ends of the lines have one ends of first, second and third elongated and parallel form C contacts thereof electrically connected to an end of the first and second lines and cable, respectively.  During normal operation of the amplifier, energization current in relay coils causes second and third contacts to touch for passing signals on the trunk cable and second line with amplification.          PIN diodes are connected so as to short circuit opposite ends of the first line only when the amplifier functions properly for improving the isolation in the station equipment.  When the amplifier malfunctions, current in the coils is interrupted and first and third contacts close. In order to improve the station response at frequencies f2 that are above the passband of TV signals on the cable (and that are a function of the length of the first line, coupling capacitance across open first and third contacts, and characteristics of the diodes) a length of conductive foil is wrapped as a sleeve or tube around a cylindrical glass enclosure containing the contacts of each relay.  Opposite ends of each foil sleeve are connected through wires to one sides of associated variable capacitors that have their other sides connected to a ground plane.  The ground plane, contacts and sleeve of each relay comprise coupled transmission lines that cooperate with the reactances of associated wires and capacitors to resonate for coupling signal frequencies f2 away from the lines and cable for improving the overall performance of a system including series connected trunk stations.
Patent CA-1176044-A (CA)
Inventor: SHIMAI HIDEO
IPC: A44B19/58
Filed: 1981-04-30
Granted: 1984-10-16
Abstract: ABSTRACT OF THE DISCLOSURE      An apparatus for forming an element-free gap or space section in a pair of continuous slide fastener stringers.          In the apparatus, a support table has a guide groove for receiving the pair of the fastener stringers along a longitudinal path.  A pair of guide plates is disposed one on each side of the guide groove and extends thereover toward each other to define with the guide groove a guide channel.  A pressure pad is vertically movable around a stationary die in the support table for clamping with the guide plate a pair of tapes.  A punch has a sharp cutting edge so that, as the punch is moved toward the stationary die, the cutting edge enters a relatively small clearance between adjacent tape edges to cut a chain of interengaged coupling elements only at tape-side leg portions which the fastener stringers-are simply placed in and along the guide channel.  An ejector is disposed beneath the punch and is upwardly movable together with the punch to pull the cut coupling elements out of stitches holding the coupling elements to the tapes while the latter are clamped between the pressure pad and the guide plates without pulling the tapes laterally apart from each other.
Patent CA-1150140-A (CA)
Inventor: BROUWER CHARLES W
IPC: D03D51/34
Filed: 1981-05-06
Granted: 1983-07-19
Abstract: QUALITY MONITORING SYSTEM FOR LOOMS                     ABSTRACT OF THE DISCLOSURE   A quality monitoring system for looms is disclosed. The system in-cludes a plurality of signal producing units disposed at various loci on the loom. These units operate to detect faults in the warp or filling yarns being woven into the fabric. Detection of such faults produce signals which are registered and accumulated in a counter. Signals provided from different sources can be weighted at different values so that a fault from one source can excite the counter to a different level than a fault from another source. The accumulation of these values thus provides a quality point index indicative of the probable quality of the fabric being woven. Since a useful application of the quality point index is to assess this index or value in terms of faults in the woven fabric per unit length of loom operating time, or unit length of fabric woven, a divider circuit is pro-vided to divide either of the aforementioned units by faults detected. A display is provided as a visual readout for the quality point index per unit length after this division step is completed.
Patent CA-1164330-A (CA)
Inventor: CHERNY ANATOLY A
Filed: 1981-05-19
Granted: 1984-03-27
Abstract: GAS BURNER Abstract of the Disclosure A gas burner comprises a chamber accommodating gas--distributing pipes provided with axially arranged outlet openings. Disposed in the inlet portion of each of the gas--distributing pipes essentially perpendicularly to the direc-tion of the flow of gas passing therethrough is a wall having openings therein spaced equidistantly around the circumference thereof for directing the flow of gas travelling inside the pipe towards its peripheral inner surface.
Patent CA-1145945-A (CA)
Inventor: SHANK WILLIAM E
IPC: B24B47/26
Filed: 1981-05-26
Granted: 1983-05-10
Abstract: ABSTRACT OF THE DISCLOSURE         A cylindrical grinding machine comprising a work spindle, reversible motor means for rotatively driving the work spindle in a first rotational direction during a machining operation and in a second opposite rotational direction, means for stopping the work spindle, rotating in the second direction, at a predetermined angular position including key means secured to the work spindle at a predetermined angular position, bracket means mounted for pivotal displacement from a raised position to a lowered position, means for maintaining the bracket means at the raised position, stop means mounted on the bracket means for pivotal displacement from a retracted positon to an advanced key blocking position, means for displacing the stop means from the retracted to the advanced position whereby rotation of the spindle in the second opposite direction will engage the key with the stop means rotatively displacing the bracket from the raised to the lowered position and means for maintaining the spindle means at the selected angular position including latch means mounted for pivotal displacement from a retracted position to an advanced position for locking the key between the latch means and the stop-means, and means for pivotally displacing the latch means from the retracted position to the advanced position when the bracket has been pivotally displaced from its raised to its lowered position.
Patent CA-1157850-A (CA)
Inventor: LUK KONG
IPC: C07D498/04
Filed: 1981-06-10
Granted: 1983-11-29
Abstract: ABSTRACT     The present invention provides a process for the preparation of a fused bicyclic .beta.-lactam containing compound having an optionally salified free carboxylic acid group which process comprises the reaction of an ester of the formula (I):                    (I) with halide ion;  wherein R is the residue of the fused bicyclic .beta.-lactam containing  compound, R1 is an alkyl group of 1-6 carbon atoms optionally substituted by an alkoxy group of 1-4 carbon atoms or is an optionally substituted phenyl group or an alkyl group of 1-4 carbon atoms substituted by an optionally substituted phenyl group; and R2 is a hydrogen atom or an alkyl group of 1-4 carbon atoms or is joined to R2 to form part of a 5-or 6- membered carbocyclic or heterocyclic ring.
Patent CA-1166971-A (CA)
Inventor: SCHUURMANS HUBERTUS J A
IPC: B01D47/06
Filed: 1981-07-31
Granted: 1984-05-08
Abstract: A B S T R A C T            APPARATUS FOR TREATING MIXTURES OF LIQUID AND GAS      Apparatus for treating mixtures of liquid and gas comprising a tubular wall (2) defining an inner space (3) and an outer space (6). Swirl imparting means (11) are provided for imparting a rotary movement to a gas/liquid mixture supplied into said inner space to separate the liquid and the gas. In the tubular wall at least one opening (12) is arranged for discharging the separated liquid. A primary gas outlet tube (13) having the lower end (14) thereof positioned inside the inner space (3) is provided for discharging the separated gas stream from the inner space. The apparatus further comprises a secondary gas outlet tube (16) for discharging gas from the outer space (6).     (Fig. 1)
Patent CA-1168425-A (CA)
Inventor: HURD BILLY G
IPC: C09K8/584
Filed: 1981-08-07
Granted: 1984-06-05
Abstract: ABSTRACT OF THE DISCLOSURE An improved recovery process is provided for fluent petroleum in a porous formation having spaced injection means and production well recovery means which includes a concentrated brine drive and surfactant carrier system.  By injecting an aqueous drive medium having gradually decreasing brine concentration, surfactant transport and petroleum recovery efficiency are improved.  Advantageously, an effective aqueous surfactant composition is formulated containing a water-soluble ether-linked sulfonate surfactant, a cosurfactant alcohol, and at least one cosurfactant or sacrificial sulfonate material in a concentrated brine carrier.
Patent CA-1172610-A (CA)
Inventor: WALLACE DUNCAN B
IPC: A47B47/04
Filed: 1981-09-18
Granted: 1984-08-14
Abstract: "Improvements in or relating to shelving"          ABSTRACT   A shelving bracket comprises an elongate base member attachable in an upright position e.g. to a wall. A screw-operable clamping device is mounted on the base member for sliding adjustment along same.  Such device includes an arm projecting from the base member to carry a shelf.  The arm is rotatable to effect releasable clamping thereof in adjusted position.
Patent CA-1175989-A (CA)
Inventor: CALLANDER KEITH A
IPC: C08L9/02
Filed: 1981-09-23
Granted: 1984-10-09
Abstract: A process is provided for the production of soft compounds which are curable by heat to rubbery elastomers which process comprises mixing in a trough type blade mixer a butadiene-acrylonitrile polymer, filler, tackifying resin, plasticizer, a polymerizable monomer and an organic peroxidic compound. The soft compounds may be used as gunnable or spreadable compounds or for gasketing or joining purposes and cured in situ.
Patent CA-1169750-A (CA)
Inventor: HUSSEY EDWARD B
IPC: B29C53/06
Filed: 1981-09-28
Granted: 1984-06-26
Abstract: POSTFORMABLE LAMINATES          ABSTRACT         A postformable decorative high pressure laminate is formed by a facing sheet and a plurality of core sheets, including a backing sheet; the backing sheet is modified to structurally weaken the sheet and thereby to improve its extensibility by lines of weakness formed in the backing sheet in the area of the laminate to be postformed.