baber/WOPTO huggingface dataset:
Patent CA-1045157-A (CA)
Title: Processes for asymmetric conversion of 3-fluoro-l-alanine and 2-deutero-3-fluoro-l-alanine to their d-isomers
Inventor: REINHOLD DONALD F
IPC: C07C229/20
Filed: 1976-02-18
Granted: 1978-12-26
Abstract: A B S T R A C T           The invention is concerned with a process for converting 2-deutero-3-fluoro-L-alanine to the corresponding D-isomer by reacting the L-isomer in solution in aqueous hydrohalic acid with sodium nitrite to form the L-2-deutero-2-halo-3-fluoropropionic acid and reacting the latter with ammonia or sodium azide to replace the 2-halo by 2-azido, followed by catalytic hydrogenation.
Patent CA-1061855-A (CA)
Inventor: WESTROM ARTHUR C
IPC: H02H7/04
Filed: 1976-03-11
Granted: 1979-09-04
Abstract: TRANSFORMER PROTECTIVE SYSTEM              Abstract of the Disclosure A current limiting fuse and an oil expulsion or weak link type fuse are connected in series with each other and with a transformer primary winding and a grounded element having a part disposed adjacent one end of the expulsion fuse is arran-ged so that an arc drawn upon operation of the expulsion fuse is directed to the grounded element in such manner as to cause the current limiting fuse to operate and interrupt the flow of current through the primary winding.  The system is applicable to single phase or multiple phase arrangements.
Patent CA-1052864-A (CA)
Inventor: ANGER ERNEST G
IPC: G01R31/58
Filed: 1976-05-06
Granted: 1979-04-17
Abstract: DUAL CHANNEL DYNAMIC LINE ISOLATION MONITOR   ABSTRACT            A line isolation monitor for indicating the maximum hazard current in an ungrounded power distribution system with conductor lines having leakage impedances.  A signal proportional to the maximum voltage to ground of any of the conductor lines in the system is determined and used as a reference voltage for the monitor.  Separate circuits each responsive to the reference voltage generate respectively a capacitive component signal and a resistive component signal which are combined and applied as a measurement current signal across the system leakage impedances in parallel.  The impedance voltage response to the measurement current is separated from the line voltage signal, phase shifted and compared to the reference voltage signal to produce a difference signal which is used to control the magnitude of both the capacitive component signal and the resistive component signal. The magnitude of the combined capacitive component signal and the resistive component signal represents the maximum hazard current.
Patent CA-1056909-A (CA)
Inventor: LANZ OTTO
IPC: H02H7/26
Filed: 1976-06-03
Granted: 1979-06-19
Abstract: INVENTOR:     OTTO LANZ          INVENTION:    APPARATUS FOR LOCALIZATION OF A LINE FAULT     ABSTRACT OF THE DISCLOSURE     An apparatus for localization of a line fault wherein at a measuring location on the line there is provided a voltage- and current-measurement circuit, the outputs of which carry a number of voltage-current signal pairs indpendent of one another with respect to the line inductances and line capacitances.  A summation circuit having at least two outputs is connected with the measurement circuit through the agency of at least one voltage- and one current signal channel.  In the summation circuit there are additively and subtractively superimposed at least one pair of mutually independent voltage- and current signals, if necessary after multiplication of at least one of these signals by a constant factor, into traveling wave signals associated with oppositely moving traveling waves, these traveling wave signals appearing at corresponding outputs of the summation circuit.  An integration circuit forms time integrals of the traveling wave signals and an evaluation circuit links or processes at least two traveling wave-time integrals into an evaluation function characterizing the fault direction and/or the fault distance from the measuring location or at least a predetermined reference location on the line.  The voltage signal channel encompasses two parallel branches, one of which comprises an oscillating circuit having a natural frequency contained the fault-free line voltage.     1a
Patent CA-1074528-A (CA)
Inventor: BERRIE JOHN S
IPC: C01F5/24
Filed: 1976-06-04
Granted: 1980-04-01
Abstract: A B S T R A C T            A process for treating "brine mud" as produced in brine purification processes and for the coproduction of a calcium sulphate and magnesium carbonate which comprises (1)    carbonating a slurry of "brine mud" in sodium chloride brine with carbon dioxide to produce a slurry or solids comprising calcium carbonate and n liquor comprising magnesium bicarbonate and sodium chloride.   (ii)   separating the slurry produced by the carbonation stage (i) into moist solid calcium carbonate and a liquor comprising magnesium bicarbonate and sodium chloride.   (iii)  heating the liquor from (ii) to produce a slurry of solids comprising magnesium cartonate, a liquor comprising sodium chloride, and gaseous carbon dioxide.   (iv)   separating the slurry from (iii) into moist hydrated magnesium carbonate and a liquor comprising sodium chloride and (v)    drying the moist hydrated magnesium carbonate.   (vi)   slurrying the calcium carbonate from stage (ii) with a water and interacting said slurry with sulphuric acid to produce a slurry comprising calcium sulphate in the solid phase and gaseous carbon dioxide.   (vii)  separating moist calcium sulphate from the slurry produced in stage (vi) and (viii) drying the moist calcium sulphate from stage (vii) to give a dry calcium sulphate.
Patent CA-1055066-A (CA)
Inventor: PIGEON NORBERT G
IPC: B62B3/02
Filed: 1976-06-28
Granted: 1979-05-22
Abstract: ABSTRACT OF THE DISCLOSURE:           A dolly member for supporting a wheel of a towed vehicle comprising a rectangular frame, a trough member supported by said frame for receiving a wheel of a towed vehicle, a pair of longitu-dinally aligned wheels pivotally mounted on one side of the frame, a beam transversely secured to said frame on the side opposite the wheels, a stirrup-shaped member rigidly secured sideways near the end of said beam, whereby when a pair of such dolly members are disposed opposite one another and the beams are adjacent one another, the stirrup-shaped member is adapted to hook onto the beam of the opposite dolly member.
Patent CA-1044853-A (CA)
Inventor: STEPHENS JAMES B
IPC: A47K1/00
Filed: 1976-10-06
Granted: 1978-12-26
Abstract: Abstract of the Disclosure A closure for a drain port in a receptacle such as a bathtub or sink.  The closure includes a base member for attachment to the receptacle. It includes a fulcrum which engages one side of a bi-stable disc spring.  A pair of actuators are situated on the opposite side of the spring, and contact it respectively radially inwardly and outwardly from the fulcrum.  The spring can be moved by the actuators to assume a respective one of its two stable configurations.  The spring, when in one configuration, permits a seal to bear against a peripheral surface around the drain port to close it.  When in the other configuration, it causes the seal to move away from the peripheral surface and open the drain port.
Patent CA-1054404-A (CA)
Inventor: BOWMAN RAYMOND E
IPC: B21C37/04
Filed: 1977-01-27
Granted: 1979-05-15
Abstract: METHOD OF SLITTING A DOUBLE STRANDED BAR                      A B S T R A C T           In the high speed production of elongated metal bars, a method of slitting a double stranded bar interconnected at a node, in which the bar is rolled to reduce its cross-section, the compressive working force being applied asymmetrically with a greater force on the inner portion of the strands adjacent the node to create a greater longitudinal flow speed on the inner portion of the strands whereby the strands diverge. In a triple stranded bar the two outer strands are worked in this same manner.
Patent CA-1090552-A (CA)
Title: Stabilizer systems containing organotin compounds and  vinyl halide resin compositions containing same
Inventor: SZABO EMERY
IPC: C08L33/02
Filed: 1977-04-18
Granted: 1980-12-02
Abstract: Abstract of the Disclosure A stabilizer system that prevents early discoloration and h?zing of vinyl halide resins at elevated temperatures comprises a)  an organotin compound having the structural formula   wherein each R represents an alkyl group having 1 to 8 carbon atoms, each R' represents -S-(CH2)n-COOR",  -?R", or -OOC-CH-CH-COOR''', R" represents an alkyl group having ? to 1? carbon atoms, R''' represents an alkyl group having 3 to 18 carbon atoms, and n is 1 or 2; b)  at least one alkyltin thioglycolate; c)  a phenolic compound; and d)  optionally, a dialkyltin ethylene glycol dimercaptoacetate-
Patent CA-1092451-A (CA)
Inventor: TAMAI YASUO
IPC: B32B9/00
Filed: 1977-09-08
Granted: 1980-12-30
Abstract: TITLE OF THE INVENTION A leader or trailer tape for a magnetic recording medium ABSTRACT OF THE DISCLOSURE The present invention relates to a leader or trailer tape for a magnetic recording medium, which comprises a non-magnetic flexible support having a surface roughness of at least 0.15 µm, at least one side thereof being optionally subjected to a surface activating treatment, and a trans-parent and electrically conductive metal oxide layer provided thereon.
Patent CA-1042957-A (CA)
Inventor: CAPPS OVERTON B
IPC: B60B17/00
Filed: 1977-09-13
Granted: 1978-11-21
Abstract: ARTICULATED RAILWAY SERVICE WHEEL AND      UNITARY RAILWAY HUB AND AXLE                 Abstract of the Disclosure Articulated railway service wheel with structurally distinct rim, web, and hub.  A toroidal rim is interconnected to the hub by a rod-like web defining individual spring units which respond in tension and compression to vertical and lat-eral loading.  The spring web units are seated in rim and hub socket means which prevent relative rotational movement.  A unitary hub-axle is also provided.
Patent CA-1043480-A (CA)
Inventor: BESIK FERDINAND
IPC: C02F1/78
Filed: 1977-11-24
Granted: 1978-11-28
Abstract: OZONATION IN WASTE WATER TREATMENT                ABSTRACT OF THE DISCLOSURE         An ozonation waste water treatment is described in which ozone and oxygen are passed countercurrently to waste water in a first zone, contaminants are oxidized in a second zone, and solids are filtered from the treated liquid.
Patent CA-1090132-A (CA)
Inventor: LAHR ROBERT G
IPC: G09B9/048
Filed: 1977-11-24
Granted: 1980-11-25
Abstract: ABSTRACT OF THE DISCLOSURE A toy vehicle game includes an endless track defining at least two parallely extending vehicle lanes in which two or more toy vehicles are adapted to be operated.  The toy vehicles each include a reversible rotary drive motor and a transmission operatively engaged between the motor and two drive wheels for rotating one or the other of the drive wheels in response to the direction of rotation of the drive motor, thereby biasing the car against one or the other of the side walls of the track to guide the vehicle along its path of travel in one or the other of the lanes.  The track includes electrical contact strips which supply power to the drive motor of the vehicles through current collectors mounted thereon.  A control system permits the operators to separately and independently control current to the con-tact strips and also to selectively reverse the polarity of the current so that the operators can vary the speed of their associated vehicles and cause the vehicles to move from one lane to the other.
Patent CA-1073131-A (CA)
Inventor: ORRHAMMER HANS
IPC: G09G1/00
Filed: 1977-12-13
Granted: 1980-03-04
Abstract: ABSTRACT OF THE DISCLOSURE:     A control apparatus for displaying alphanumeric characters on a cathode ray tube in a plurality of lines of n characters each, said apparatus comprising a character counter for counting the character positions along each display line and a character address register for storing the succeeding addresses of the locations in a memory containing the characters to be displayed, first means connected at the outputs from the character counter for detecting the address of character posi-tion k, where k is lower than n, and producing a stop signal for the counter when the latter reaches a count of k, the first means being arranged for holding the stop signal during a predetermined time equal to the scanning time corresponding to at least one character width, and second means connected at the outputs from the character counter for detecting the address of character position (k+1) and producing an inhibit signal during the occurrence of the stop signal.  The inhibit signal serves to inhibit the illumination of the spot on the cathode ray tube thereby to prevent a same character to be displayed repeatedly while the character counter is stopped.          Comparator means are coupled to the outputs from the character counter and the character address register for producing an illumination enable signal in response thereto.
Patent CA-1088684-A (CA)
Inventor: ROGE RALPH R
IPC: H04M3/24
Filed: 1978-03-23
Granted: 1980-10-28
Abstract: ABSTRACT OF THE DISCLOSURE     A ground start loop current detector is used to monitor the loop current in a telephone subscriber loop when the subscriber requests service by grounding one line of the loop (ground start), when a busy subscriber discontinues use by opening the loop, and when a called subscriber answers in response to ringing by closing the loop.  In order to operate in the presence of longitudinal (common mode) interference currents in the loop, especially in the ground start situation where only one line is monitored, the detector incorporates a differential amplifier which has its inputs connected to the loop through transformer windings that are phased so as to equalize the effects of longitudinal currents on the inputs of the differential amplifier.
Patent CA-1076161-A (CA)
Inventor: RICHARDSON GEORGE D
IPC: B60G17/027
Filed: 1978-04-18
Granted: 1980-04-22
Abstract: SUBSTITUTE                       REMPLACEMENT               SECTION is not Present Cette Section est Absente
Patent CA-1090305-A (CA)
Inventor: MORRIS FRANK R
IPC: B67B3/12
Filed: 1978-05-09
Granted: 1980-11-25
Abstract: APPARATUS                 Abs?ract of the Disclosure Apparatus  or capping containers having a relatively rigid capping portion and an outwardly extending flange.          The containers, which are preferably made of resilient thermo-plastic material, are suspended from their flange while being capped.
Patent CA-1118560-A (CA)
Inventor: GRANDINE JOSEPH D II
IPC: B01D71/34
Filed: 1978-05-19
Granted: 1982-02-23
Abstract: ABSTRACT      PROCESSES OF MAKING A POROUS MEMBRANE MATERIAL   FROM POLYVINYLIDENE FLUORIDE, AND PRODUCTS       This invention covers processes for making microporous membranes and molecular filtration membranes from vinylidene fluoride polymers, and the products so produced.  A continuous version of the process consists of applying a layer of a solution of a polyvinylidene fluoride polymer to a rigidly supported surface of a backing belt to form a film, then passing the belt through a formation bath, in which the membrane is formed.  To form the polymer solution, the polymer is dissolved in a liquid vehicle that will dissolve up to about 25% by weight of the polymer at a temperature of at least 50°C but that dissolves substantially less of the polymer at about 20°C (room temperature).  The polymer solution is formed at 50°C or higher, and the formation bath is maintained at about room temperature.  The formation bath is a mixture of the liquid vehicle solvent with a second liquid that is miscible with the solvent but that is not itself a solvent for the polymer.  The film is main-tained immersed in the formation bath until it has been converted to a porous membrane whose pore structure is essentially fully formed, by leaching of the solvent from the film and its replacement with the non-solvent liquid. Thereafter the residual solvent is extracted from the porous membrane, and after separation of the membrane from the backing belt, the membrane is dried.  The preferred solvent-non-solvent system for the formation bath is acetone-water. A preferred formation bath composition is from about 70% to about 80% acetone by volume.
Patent CA-1200589-A (CA)
Inventor: ALDRICH HOWARD P
IPC: B64D13/04
Filed: 1978-05-23
Granted: 1986-02-11
Abstract: Abstract of the Disclosure An aircraft cabin pressure control schedule which appoximates a function dependent on outside ambient pressure only.
Patent CA-1114941-A (CA)
Inventor: MOORE JAMES K
IPC: G03B15/16
Filed: 1978-07-11
Granted: 1981-12-22
Abstract: ABSTRACT OF THE DISCLOSURE           Television apparatus for producing signals for displaying simultaneously a succession of separated images of an object moving over a selectable time period in an otherwise substantially static scene so that the trajectory of the object can be viewed.  The effect is achieved by storing, at the start of the selectable time period, a television frame in a suitable storage device and periodically comparing the stored frame with television frames arriving subsequently during the selectable time period, and upon detection of differences between corresponding picture elements of the stored and subsequently arriving frames, substituting the picture elements that caused the detected difference in the stored frame.  The system identifies such substituted picture elements and ensures that the same picture elements are not again substituted during the selectable time period.  At the end of the period a video signal representing at least the picture elements substituted in the stored frame during the selectable time period is coupled to display apparatus.
Patent CA-1081017-A (CA)
Inventor: O'HAGAN PETER K
IPC: D21F7/00
Filed: 1978-07-21
Granted: 1980-07-08
Abstract: Abstract of the Disclosure A support device with air caster units is provided sufficient to lift and support heavy rollers or rolls inside an endless belt so that the rolls can be removed from within the endless belt and the endless belt replaced.
Patent CA-1101988-A (CA)
Inventor: PARKER ROBERT P
IPC: H04N5/18
Filed: 1978-07-24
Granted: 1981-05-26
Abstract: RCA 71,430 COMBINED BLANKING LEVEL AND KINESCOPE BIAS CLAMP FOR A TELEVISION SIGNAL PROCESSING SYSTEM                     ABSTRACT OF THE DISCLOSURE     In a video signal processing system including a kinescope for reproducing an image in response to an image representative video signal, a circuit for clamping a periodic blanking level of the video signal to establish a black level for a reproduced image.  A clamping device clamps the video signal to a reference voltage during periodic blanking intervals of the video signal.  The clamped video signal is applied to the kinescope through a direct current coupling network having a threshold conduction level.  A locally generated blanking reference signal, of a magnitude substantially equal to the difference between the reference voltage and the threshold conduction level, is added to the video signal prior to clamping, so that the clamped video signal coupled to the kinescope exhibits a desired blanking level and unimpaired peak-to-peak amplitude.
Patent CA-1083136-A (CA)
Inventor: BAUM ENGELBERT
IPC: B01F7/00
Filed: 1978-08-25
Granted: 1980-08-05
Abstract: ABSTRACT OF THE DISCLOSURE            The present invention provides a device for supplying gas to a liquid and revolving the liquid, especially manure, sewage containing bacteria, or the like, comprising a driven hollow shaft carrying a propeller means, provided with gas outlet openings, through which gas may be supplied to the liquid via the hollow shaft, the propeller means comprising at least one screw-shaped vane, characterized in that the screw-shaped vane at its lower edge widens to a chamber which is connected to the hollow shaft via a channel, and which forms, in tangential direction, an outlet opening.
Patent CA-1091316-A (CA)
Inventor: BRYANT STANLEY
IPC: B60D1/64
Filed: 1978-09-08
Granted: 1980-12-09
Abstract: ABSTRACT      A plug and socket connector for the electric circuits of towing and towed vehicles, incorporating 12 terminals.  The connector consists of a plug half and a socket half, each half including a body and a pair of covers removably secured to the body, and a lid for the terminals.  Each lid is movable to cover the terminals when the connector halves are disconnected and is movable to be retained in an open position when the connector halves are connected together.  Shrouds are also provided for the terminals of each connector half and the covers for each said half are so arranged that they can be individually removed and replaced to allow for ready access to a selected side of a connector half.  The covers are arranged whereby they can only be assembled in the correct position and they also serve as handgrips.
Patent CA-1083212-A (CA)
Inventor: MULACH ARTHUR
IPC: H02K1/20
Filed: 1978-10-31
Granted: 1980-08-05
Abstract: STATOR CORE COOLING FOR DYNAMOELECTRIC             MACHINES     ABSTRACT OF THE DISCLOSURE         Improved cooling is provided for the end regions of the stator core of a large dynamoelectric machine.  For this purpose, a solid rigid vent plate is placed in contact with the finger plate at each end of the core.  The vent plates are non-magnetic plates of the same configuration as the core laminations and have radial grooves in at least one surface.          Coolant gas flows through the grooves to directly cool the finger plate and the end laminations of the stator core.
Patent CA-1124484-A (CA)
Title: Installation for the centrifugal casting  of tubular members
Inventor: FORT PIERRE H M
IPC: B22D13/10
Filed: 1978-10-31
Granted: 1982-06-01
Abstract: ABSTRACT OF THE DISCLOSURE         This installation for the centrifugal casting of tubular members, of the type comprising on the one hand a centrifugal casting machine supporting a rotary mould, on the other hand an arrangement for supplying cast iron to the mould comprising two casting channels connected at their upstream end to the same carriage able to move at right-angles to the axis of the mould between two positions, the supply arrangement and the mould being able to move longitudinally one with respect to the other in each position of the carriage, is characterised in that it com-prises a support for supporting the free end of the two channels when the machine and the carriage  are moved away from each other and means for moving this support at right-angles to the said axis X-X in synchronism with the carriage and along the same path.
Patent CA-1117974-A (CA)
Inventor: PASPEK STEPHEN C JR
IPC: C07C51/00
Filed: 1978-11-10
Granted: 1982-02-09
Abstract: (5052) PROCESS FOR PURIFICATION OF ACRYLIC ACID      BY FRACTIONAL CRYSTALLIZATION       ABSTRACT Pure acrylic acid may be obtained from an aqueous solution containing acrylic acid by fractional crystallization wherein a salt is added to the aqueous solution that eliminates the eutectic point between acrylic acid and water.
Patent CA-1118097-A (CA)
Inventor: BOBECK ANDREW H
IPC: G11C19/08
Filed: 1978-11-30
Granted: 1982-02-09
Abstract: 1  BOBECK, A. H. 119/120/121/122 Abstract A conductor-access magnetic bubble memory comprises an electrically-conductive film (12) provided with a pattern of sequences of apertures (14) therethrough.   Each aperture defines, in an adjoining layer (11) of a bubble propagating material, a preferred site for a bubble during intervals when current is caused to flow through the film.        Means, such as ion implanted regions (15) within the adjoining layer, or permalloy elements (123) associated with each aperture, define other preferred sites for bubbles offset from the aperture defined sites, whereby, upon termination of the current flow through the film, the bubbles automatically (without the use of external drive means) advance to the offset sites, thus ensuring movement of the bubbles in prescribed directions (FIG. 1).