baber/WOPTO huggingface dataset:
Patent CA-1044239-A (CA)
Inventor: FRANK JUDIT
IPC: C07D215/56
Filed: 1974-08-27
Granted: 1978-12-12
Abstract: ABSTRACT This invention relates to a process for the preparation of the com-pounds of the general formula I:                      (I) wherein R1 stands for lower alkyl group, R2 stands for a lower alkyl group or an aralkyl group, R3 stands for hydrogen or a lower acyl group which comprises (a) reducing a compound of the general formula II:                                  (II) wherein R1 and R3 are defined above, to a compound of the general formula III:                                (III) and reacting the compound thus obtained with an ethoxy-methylene-malonic acid-diester of the general formula IV:                                    (IV) wherein R2 is defined above and subjecting the compound of the general formula V:                                          (V) thus obtained, wherein R1, R2 and R3 are defined above, to ring-closure; or (b) reacting a compound of the general formula:                                       (VI) wherein R1 and R3 are defined above, with ortho-formic acid ester and alkyl-malonate and subjecting the compound of the general formula V thus obtained, wherein R1, R2 and R3 are defined above, to ring-closure; or (c) subjecting a compound of the general formula I, wherein R1 and R2 are defined above and R3 stands for a lower acyl group, to a selective acyl-cleaving; or (d) reacting the compound of the general formula III, wherein R1 is defined above and R3 stands for hydrogen, with ethyl-.alpha.-cyano-.beta.-ethoxy-acrylate and subjecting the compound of the general formula VII:                                     (VII) thus obtained, wherein R1 is defined above, to ring-closure and subjecting the new compound of the general formula VIII:                                     (VIII) wherein R1 is defined above, to acidic or alkaline hydrolysis and subsequently to esterification; or (c) reacting a compound of the general formula VIII with an alcohol in an acidic medium: or (f) converting a compound of the general formula I, wherein R3 stands for hydrogen, into an acid and forming an ester of the general formula I from the acid by reacting with the corresponding alcohol and converting the compound thus obtained into a salt or setting free the compound from the salts thereof.  It also elates to the new compounds of formula I which are useful as coccidiostatic and as intermediates in the synthesis of the known coccidiostatic-6,7-dialdoxyquinoline carboxylic acid esters. Other new intermediates are described.
Patent CA-1043260-A (CA)
Title: Water soluble lipophilic liquid fatty acid salts comprising therapeutic agents having a tertiary nitrogen capable of being protonated
Inventor: WEBB NORVAL E JR
IPC: A61K9/00
Filed: 1974-09-19
Granted: 1978-11-28
Abstract: ABSTRACT OF THE DISCLOSURE    Water-insoluble therapeutic agents having a tertiary nitrogen capable of being protonated are stabilized and solubilized via the formation of water-soluble lipophilic liquid fatty acid salts.
Patent CA-1049039-A (CA)
Inventor: LAKE ANTHONY W
IPC: C07C49/76
Filed: 1974-12-31
Granted: 1979-02-20
Abstract: ABSTRACT OF THE DISCLOSURE       Napthylene derivatives of the formula (II):                                           (II) wherein X is a chlorine or bromine atom or methoxy, methylthio or alkyl group of 1-4 carbon atoms; Y is a -CHR1-CH(R2)-, CHR1-CO-, CHR1-C(CH)R2-or -C(R1) = C(R2)- group where R1 and R2 are each a hydrogen atom or a methyl, ethyl group or propyl group and Z is a R4, (CH2)nCOR4, (CH2)nCH(OH)R4, or (CH2)nC(CH3)(OH)R4 group where R4 is an alkyl group of 1 to 4 carbon atoms and n is 0, 1 or 2; with the proviso that Y - Z contains at least one oxygen atom and not more than one carbonyl group and X is not methoxy when Y - Z is a -CH2CH2COCH3 group.  These derivatives have good anti-inflammatory activity while having an improved therapeutic ration as based on gastro-intestinal irritancy.
Patent CA-1038932-A (CA)
Inventor: SONES WILLIAM K
IPC: H04B7/185
Filed: 1975-05-01
Granted: 1978-09-19
Abstract: Abstract of the Disclosure A reliable earth terminal for satellite communications systems includes a single fixed reflector antenna which provides multiple beams each positionable by small feed motion.  The transmitter uses modular power amplifiers each capable of full band operation, but operation of each amplifier is limited to an assigned increment through the use of band-limiting filters.  A single, redundant power amplifier may be remotely switched into any one of the transmitting chains in the event of a failure.  The receiver includes modular low noise "fail-soft" preamplifiers followed by receiving chains channelized into band increments corresponding to those of the transmitting chains.  All subsystems are broadband, channel bandwidth being determined only by inter-mediate frequency band pass filters.  Prime power is low voltage battery banks recharged by a commercial power source or a motor generator. Since the terminal is both automatic and self-protec-ting, remote monitoring and control is limited to normal parameter adjustments such as antenna feed positioning, changes in transmit-ter power, and switching of the spare power amplifier or turning off any carrier.
Patent CA-1049043-A (CA)
Inventor: MELUCH WILLIAM C
IPC: C07C209/00
Filed: 1975-09-17
Granted: 1979-02-20
Abstract: METHOD OF RECOVERING AMINES BY THE HYDROLYTIC DECOMPOSITION OF POLYURETHANES          Abstract of the Disclosure:          In accordance with a preferred embodiment of this invention, amines may be efficiently recovered from the aqueous vapor produced by a high temperature hydrolytic decomposition of polyurethane by the following steps:  1) spraying the vapor with a relatively cool aqueous dispersion containing about 5% to 20% by weight of a solvent such as aniline or benzyl alcohol, 2) allowing the resulting effluent to settle into an amine rich organic phase which is separated from an aqueous phase by a clean interface, 3) separating the two phases, and then 4) distilling the organic phase to recover the desired amine product.  The spraying may be conducted at atmospheric pressure and at a temperature within the range of 35° to 90° C.  The majority of the solvent is also recovered during the distillation of the organic phase.  The aqueous phase may also be distilled to recover additional amines and water, which may then be recycled.
Patent CA-1038040-A (CA)
Inventor: EINOLF CHARLES W JR
IPC: G06F11/32
Filed: 1975-10-08
Granted: 1978-09-05
Abstract: AN ELECTRICAL FAULT INDICATOR                   ABSTRACT OF THE DISCLOSURE           A method and apparatus for indicating a malfunction in the normal operation and operating components of electrical apparatus.  A predetermined coded output is generated period-ically in response to the proper operation of the apparatus being monitored.  The coded output is conveyed to a decoder network which deciphers the input signal and provides a symbolic output for identifying the reception of the coded output.  A timer operable to sequence through a predetermined time interval generates an output during the interval which is reinitiated in response to the symbolic output of the decoder network.  In addition, means are provided for supplying a fault output, which is inhibited during the interval of the timer output.  The timer interval is desirably selected to be greater than the interval between generation of the coded out-put so that a fault output is inhibited so long as the apparatus is properly operating.  If for any reason, the decoder network fails to identify the reception of the coded output within the timer interval a fault output signal is conveyed representative of a malfunction in the monitored apparatus.          The invention is ideally applicable to digital processing and information transmission systems wherein the coded output is preferably designed to exercise all states of the data and address lines of the communication busses.
Patent CA-1042807-A (CA)
Inventor: SARICH TONY R
IPC: F01C1/32
Filed: 1976-02-02
Granted: 1978-11-21
Abstract: ABSTRACT          An orbital engine having a piston member mounted eccentrically upon a shaft journalled in a housing so that the piston member orbits within the housing as the shaft rotates. A stabiliser plate supported in the housing to describe an orbital path corresponding to the desired path of the piston member and restrained to move in this path by a plurality of secondary cranks of the same eccentricity as the shaft.  The stabiliser plate being connected to the piston member by a tongue and slot connection which will not permit relative movement between the piston member and the stabiliser plate in the circumferential direction, but will permit relative movement in the axial and radial direction.
Patent CA-1072972-A (CA)
Inventor: CRAGOE EDWARD J JR
IPC: C07D307/93
Filed: 1976-02-18
Granted: 1980-03-04
Abstract: ABSTRACT OF THE DISCLOSURE   6-Oxo-7,7-disubstituted-1,2,7,8-tetrahydro (and 7,8-dihydro)-6H-indeno-[5,4-b] furan(and thiophene)-carboxylic acids, the salt, ester and amide derivatives thereof and combinations of these compounds with anti-kaluretic agents are disclosed having diuretic-saluretic, uricosuric and antihypertensive activity.
Patent CA-1059419-A (CA)
Inventor: STURHAN KLAUS
IPC: B60N2/50
Filed: 1976-02-25
Granted: 1979-07-31
Abstract: ABSTRACT OF THE DISCLOSURE            The invention relates to spring mounted vehicle seats of the type wherein the seat frame is connected to a bottom frame via a pair of spaced scissor guides each made up of inner and outer guide members pivotally connected to-gether at their intersection, and a spring-and damping unit has one end thereof connected to a longitudinally adjustable cross beam of the seat frame.  According to the invention the other end of the unit is connected to mounting means pivotally connected to the inner guide members such that the latter pivotal connection is forward of the pivotal connection of the inner and outer guide members and such that the two pivotal connections are arranged on opposite sides of a straight line extending along one of the inner guide members and joining the points of connection thereof with the seat frame and the bottom frame respectively.  As a result the seat has a very low height when fully lowered and the spring properties of the spring-and damping unit are better utilized in the restor-ing moment provided by the spring portion of the unit.
Patent CA-1041170-A (CA)
Inventor: SMITH WILLIS R
IPC: H01L23/62
Filed: 1976-04-05
Granted: 1978-10-24
Abstract: FOUR TERMINAL VARISTOR            Abstract of the Disclosure A four terminal varistor is shown as a device for providing fail-safe circuit protection under certain conditions.          The failure of any lead connected to the four terminal varistor will shut down the protected load so that the load cannot operate under unsafe conditions.  By its nature, a varistor can absorb voltage peaks and protect a load from high voltage and/or a cur-rent resulting from high voltage.  One pair of leads from the varistor is connected to the power supply and the other pair of leads to the load.  Thus, if any lead is broken, there will be no power to the load.  A variation provides additional protection in the event the metal coating on the semiconductor, to which two of the leads are attached, becomes detached from the semiconductor.          In case of such detachement, the electrical connection between the two leads is broken. For this purpose, the metalized coating on the semiconductor is divided into two separate areas, one for each lead.  The areas are electrically coupled together by a mechani-cally weak link and/or a link which may be embedded within the semiconductor material.
Patent CA-1037285-A (CA)
Inventor: KOFSKY HARVEY I
IPC: A61B5/00
Filed: 1976-04-29
Granted: 1978-08-29
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a non-invasive oximetry process for determining the value of oxygen saturation of the blood of a subject.  In some ear oximetry process, light at two or more frequencies is transmitted through the ear lobe or pinna of the ear of a subject, and the intensity of the trans-mitted light is measured on the other side of the ear lobe. These processes are affected by such variables as depth of blood in the ear lobe or pinna and differences in the total hemoglobin concentration in the blood.  Applicant has discovered that in-accuracies caused by these variables can be eliminated or great-ly reduced by taking the derivative of the intensity of the transmitted light, and processing the values of these derivatives in association with a set of predetermined pseudo coefficients by applying these to newly developed relationships disclosed in the specification.  The result of such processing yields the value of oxygen saturation of the blood of the subject. An appara-tus for carrying out the inventive process is also taught.
Patent CA-1085904-A (CA)
Inventor: CRAFT JAMES A
IPC: G03G15/00
Filed: 1976-05-18
Granted: 1980-09-16
Abstract: DUPLICATING MACHINE EMPLOYING IMAGE    REVERSING OPTICAL PATHS WITH FRONT EDGE          DOCUMENT ALIGNMENT ON DOCUMENT INPUT AND OUTPUT          Abstract A document reproduction machine, such as an electrostatic copier, has a copy station with a front reference edge for operator convenience.  A reproduction station adjacent the copy station re-verses the image such that the reference edge is at a rear or remote position from the operator.  The duplicate copy is initially referenced to the rear reference edge.  An aligner in a transfer station moves the duplicate copy to a front reference edge and into an exit station which may include a colla-tor.  In a minimal transport distance, documents of various lengths are automatically handled and aligned by the apparatus.
Patent CA-1076343-A (CA)
Inventor: GARDNER DAVID L
IPC: B65H81/00
Filed: 1976-05-25
Granted: 1980-04-29
Abstract: PIPE COATING APPARATUS           Abstract of the Disclosure A pipe coating apparatus which incorporates a mechanism for placing weight material, typically concrete slurry, on a pipe where the weight material is delivered ? top of a conveyor belt.  The apparatus includes a vertically aligned housing which receives the weight material and has a slot of adjustable height on one side.  A conveyor belt extends between two rollers.  One roller is located to the side of the pipe.  The second roller is located to the side of the first roller and preferably parallel to and immediately below the axis of the pipe. The pipe is supported by the apparatus and the weight material, concrete in a tacky state, travels with the reinforcing mesh along the top of the conveyor belt as it travels endlessly around the two rollers from the slot where the weight material is metered on top of the conveyor and wraps in helical fashion about the pipe as it rotates and moves lengthwise.  A coating of specified thickness is applied by the apparatus.  A modification enables the conveyor belt to carry the reinforcing mesh and an outer wrap offset laterally from another to lap the adjacent turns of helical wrapping, and a narrow belt rides the conveyor to hold the compressed concrete in position along the helical turn last placed prior to covering by an offset.
Patent CA-1058325-A (CA)
Inventor: FREEMAN LEO B
IPC: H03K17/00
Filed: 1976-06-04
Granted: 1979-07-10
Abstract: ENHANCEMENT-AND DEPLETION-TYPE FIELD EFFECT TRANSISTORS CONNECTED IN PARALLEL                    Abstract of the Disclosure A circuit comprising the parallel connection of an enhancement-and a depletion-type FET which exhibits reduced power and improved performance for both logic as well as memory circuits.  Cross-coupled enhancement-type field effect transistors and first and second sets of field effect tran-sistors connect the internal switching nodes of the cross-coupled transistors to bit-sense lines.  The first and second sets of field effect transistors each comprise a depletion-type field effect transistor and an enhancement-type field effect transistor connected in parallel.
Patent CA-1074893-A (CA)
Inventor: GOTO HIROKAZU
IPC: H04Q3/52
Filed: 1976-06-23
Granted: 1980-04-01
Abstract: Abstract of the Disclosure A switching network comprises incoming lines connected to subscribers, outgoing lines intersecting the incoming lines, and switching elements provided at preselected cross-points of the incoming and outgoing lines.  According to the invention, idle and unused incoming and outgoing lines are grounded while a subscriber is connected to a desired outgoing line.  Thus greatly reduces or eliminated wiring or switching crosstalk because the crosstalk is, in effect, leaked to ground.  Complete groundings not necessary as an extremely high reduction in crosstalk may be obtained using low impedance elements such as transformers or capacitors connected to ground.
Patent CA-1068831-A (CA)
Inventor: MOLLON LESLIE
IPC: G21F7/00
Filed: 1976-09-01
Granted: 1979-12-25
Abstract: ABSTRACT OF THE DISCLOSURE           A generally tubular shroud of rectangular cross-section having flat side walls formed by inner and outer tubes of rec-tangular cross-section spaced apart to provide a substantially uniform space therebetween, a flat aluminum-boron carbide sand-wich received in and substantially filling the spaces at the four sides of the shroud.  The inner and outer tube walls are in pres-sure contact with the inner and outer surfaces of the sandwiches.          The side walls of the tube and sandwiches are interlocked by transversely extending elongated channels formed in the shroud walls including the inner and outer tube walls and the sandwich-es.  The invention includes a method in which after assembly, the parts are expanded in a die by very high pressure hydraulic pressure by means of a flexible bag, establishing the pressure contact and suitably folding end portions of the inner and outer tubes.
Patent CA-1041183-A (CA)
Inventor: MEYERHOFF JERRY D
IPC: H04B1/26
Filed: 1976-09-17
Granted: 1978-10-24
Abstract: BALANCED DUAL OUTPUT MIXER CIRCUIT                           ABSTRACT      An improved balanced dual output diode mixer circuit having separate output terminals for audio and RF output signals is disclosed.  The mixer circuit includes a first transformer having a primary and a center tapped secondary winding.  The ends of the secondary winding are coupled to end terminals of two separate secondary windings of a second transformer through a switching circuit which comprises four diodes.  RF bypass capacitors are coupled between an RF terminal and end terminals of the secondary windings of the second transformer and provide a low RF and a high audio impedance therebetween.  RF chokes are coupled between audio output terminals and the RF bypass capacitors and provide a low impedance audio path which is connected at a point of low RF impedance.  A pair of resistors coupled between ground and the RF bypass capacitors provide a DC current path to ground for the rectified DC current created by the switching network.  The primary winding of the second trans-former is coupled to RF output terminals.  The balanced dual output diode mixer is adaptable for providing both audio and RF output signals when RF signals are applied directly to the primary winding of the first transformer and through the RF bypass capacitors to the secondary windings of the second transformer.
Patent CA-1072019-A (CA)
Inventor: PASCALE JOSEPH A
IPC: B01D33/06
Filed: 1976-11-30
Granted: 1980-02-19
Abstract: IMPROVED ROTARY FILTER     ABSTRACT OF THE DISCLOSURE             An improved rotary filter is cylindrical in shape, and operates by vacuum suction or otherwise to withdraw fluids from a substance exposed to the outer area of the device,  drawing said fluids into the filter to be pumped out to a suitable reservoir. It includes an inner cylindrical surface having attached thereon a plurality of selectively spaced support structures which extend longitudinally along the inner cyclinder. Said support structures are covered with a plastic covering adapted to receive a filtering medium which forms the outer circumference of the rotary filter. In one embodiment the plastic covers are grooved to receive a spirally wound wire to further support said filtering medium.
Patent CA-1082129-A (CA)
Inventor: ROZMUS WALTER J
IPC: B03C7/02
Filed: 1977-01-24
Granted: 1980-07-22
Abstract: ABSTRACT OF DISCLOSURE         An apparatus and method are disclosed for cleaning contaminated particulate material, such as, gas contaminated powder metal.  Degassification is accomplished by introducing contaminated particulate material into a vacuum chamber which is connected to a vacuum pump.  One or more electric fields are produced within the vacuum chamber by applying a potential across one or more sets of electrodes.  The electrical field charges the contaminants and excites them so that the contami-nants are separated for the particulate material and, in this case of a gaseous contaminant, are more easily removed from the vacuum chamber.
Patent CA-1081063-A (CA)
Inventor: STACKARUK ARTHUR
IPC: F02P9/00
Filed: 1977-05-05
Granted: 1980-07-08
Abstract: Abstract of the Disclosure In a four stroke internal combustion engine enhan-ced combustion within the cylinder is obtained by provi-ding a second ignition spark retarded from the first spark by a flywheel angle of about 30° to about 180°.
Patent CA-1088639-A (CA)
Inventor: OHSAWA MITSUO
IPC: H03G1/00
Filed: 1977-06-17
Granted: 1980-10-28
Abstract: ABSTRACT OF THE DISCLOSURE            A gain control circuit includes first and second variable impedance devices connected between signal input and signal output terminals. A first current source (or sink) is connected to the connection point of the impedance devices and second and third current sinks (or sources) are connected to the input and output terminals. The output signal is controlled by varying the currents of the first through third current sources (or sinks) in such a way that the current value of the first current source (or sink) equals the total current value of the second and third current sinks (or sources).
Patent CA-1060490-A (CA)
Inventor: DE GEORGE ROBERT P
IPC: B23Q1/30
Filed: 1977-06-29
Granted: 1979-08-14
Abstract: ABSTRACT              A worktable for use in association with machine tools is illustrated which has a section including a side edge of the work-table hingedly connected to the table supporting member whereby the section is tiltable under power to automatically unload a workpiece from the table. The invention is shown in connection with a work-piece gripping and moving carriage which moves the workpiece relative to the machine tool and, after completion of machining, moves the workpiece to a position on the tip table section. Control members prevent actuation of the tip table until after the workpiece gripper has deposited the workpiece on the tip table clear of the machine tool and then withdrawn to a position fully out of contact with the workpiece.
Patent CA-1088707-A (CA)
Inventor: SEITA TORU
IPC: B01J47/12
Filed: 1977-06-30
Granted: 1980-11-04
Abstract: ABSTRACT OF THE DISCLOSURE         A cation-exchange membrane is prepared by swelling a fluorinated polymer membrane having cation-exchangeable groups in an organic solvent, removing the solvent from the swollen membrane and impregnating the swollen membrane with a monomer with or without a crosslinking agent and a polymerization initiator and polymerizing the monomer in the membrane.  The membrane so obtained is preferably swollen with a water miscible organic solvent and then, the solvent is removed from the membrane.