baber/WOPTO huggingface dataset:
Patent CA-1060553-A (CA)
Inventor: HERZOG WILLIAM F
IPC: H03K7/06
Filed: 1975-10-27
Granted: 1979-08-14
Abstract: ABSTRACT OF THE DISCLOSURE          A frequency modulator includes a capacitor, a controlled current source, and a bistable circuit.  The current source and bistable circuit operate to alternately vary the charge in opposite directions on the capacitor.          The frequency of opposite charge variation is controlled by the amplitude of the input signal applied to the current source.  A control circuit coupled to the capacitor and the bistable circuit varies the frequency of opposite charge variation to provide a linear frequency versus input signal amplitude.
Patent CA-1043242-A (CA)
Inventor: STALZER LEO H
IPC: B21D5/04
Filed: 1975-11-05
Granted: 1978-11-28
Abstract: COMBINATION CLEAT BENDER AND     BAR FOLDER APPARATUS                      ABSTRACT OF THE DISCLOSURE              A sheet metal bending brake apparatus adapted to make complex bends in a sheet metal workpiece, comprising a frame, a fixed holding bar mounted adjacent of said surface, a movable holding bar mounted on said frame movable between a forward clamping position in opposed clamping relationship with the fixed bar and a rearward and downward position below the plane of the fixed surface, a bending brake element adjacent the fixed jaw adapted to contact sheet metal held between the same, said bending element adapted to rotate 180°, or more, around a point adjacent the jaws, the movable holding bar being coordinated with the bending brake to release from the holding position before the bending brake has rotated 180°.
Patent CA-1044521-A (CA)
Inventor: MARZOCCO ALESSANDRO
IPC: B61D19/00
Filed: 1975-11-17
Granted: 1978-12-19
Abstract: ABSTRACT OF THE DISCLOSURE The invention provides a sliding-wing door for vehicles comprising at least one door panel suspended to a first member of a telescopic guide arrangement, a second member of which is carried by at least two rectilinear sliding assemblies having a slidable member fixed to said second member and a stationary member attached to a rigid structure affixed to the vehicle, rolling bearings being inserted between said members of the telescopic guide arrangement and between said members of each rectilinear sliding assembly, each bearing being mounted on a pin which is fixed to one of said members and is slidingly coupled to and guided by a rectilinear pathway of the other member through said bearing, the stationary members of said rectilinear sliding assemblies being fixed to a supporting structure which is attached to said rigid structure by means of a swingable arm equipped with a clamping member and mounted on a vertical pin carried by said rigid structure and by means of a locking bolt spaced from said arm, the structures being equipped with passageways, with side clearance, for said arm and said bolt and with respective curved resting surfaces faced to said passageways, the resting surface for the locking bolt being adjustable by means of a spreading member which is screwed in the supporting structure and is axially passed through with side clearance by the locking bolt, the locking bolt being also arranged to axially pass with side clearance through an abutting member with curved surface engaged with said spreading member and through a further member which is displaceable along an opposite surface of said abutting member, the locking bolt having a head and an-associated locking nut which rests on said displaceable member and said spreading member through respective washers having a spherical seat.
Patent CA-1065088-A (CA)
Inventor: FREY HANS-HELMUT
IPC: C08L23/26
Filed: 1975-11-27
Granted: 1979-10-23
Abstract: THERMOPLASTIC COMPOSITIONS Abstract of the disclosure: Blends of vinyl chloride polymers and chlorination pro-ducts of polyolefins well suitable for dry blend technique are obtained by using a chlorinated low pressure polyethylene with a chlorine content of 38 to 42% by weight, a residue  value of 55 to 70% by weight and a swelling value of less than 1% by weight, prepared from high-density polyethylene, having a density of 0.955 to 0.965 g/cm3, a melting index of 20 to 65 g/10 min and a reduced specific viscosity of 1 to 2 dl/g, under certain conditions.
Patent CA-1049574-A (CA)
Inventor: ALLEN KENNETH M
IPC: A23N15/00
Filed: 1975-12-09
Granted: 1979-02-27
Abstract: Abstract Tapered ears of corn are moved one-at-a-time lengthwise into engagement first with a feeler-positioner and then with a feeler, and if the small end of an ear is forward, the feeler engages only the periphery of the ear and is moved slowly, while if the larger, butt end is first, the feeler engages the end or corner portion and is moved much more rapidly.  This higher velocity of the feeler is sensed by an electro magnetic velocity transducer, and a pair of discs are actuated to grip the ear and turn it end-for-end.  In one embodiment, the feeler-positioner is a pair of wheels which engage each ear and lift the feeler in accordance with the diameter and taper of that ear.  In an alternate embodiment, the feeler-positioner is in the form of a plate which engages the ear and lifts the feeler in accordance with the diameter and taper of the ear.
Patent CA-1036662-A (CA)
Inventor: ELGER HARALD
IPC: H02P5/747
Filed: 1975-12-11
Granted: 1978-08-15
Abstract: Abstract of the Disclosure A variable-speed three-phase drive is disclosed.  The drive includes a switchable, undersynchronous converter cascade for driving two mechanically coupled asynchronous motors which have slip ring rotors and which can be con-nected separately to a three-phase network.  The slip ring rotors of the two asynchronous motors are connected, respectively, with the three-phase termi-nals of different uncontrolled rectifiers.  The latter two rectifiers, to-gether with two inverters and two other rectifiers, are arranged in a ring circuit in such a manner that two rectifiers are always followed by an inver-ter.  In accord with the invention, a switch is provided for connecting the three-phase terminals of the two rectifiers which are disposed on the res-pective cathode sides of the two inverters, and for also connecting the three-phase terminals of the two rectifiers which are disposed on the respective anode sides of the two inverters.
Patent CA-1049556-A (CA)
Inventor: CHEN LARRY P
IPC: B01J3/04
Filed: 1976-01-12
Granted: 1979-02-27
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides in a process for making urea from ammonia and carbon dioxide wherein gaseous ammonia is introduced into a stripping zone for upward flow therein into a reaction zone maintained at substantially the same pressure as the stripping zone, wherein carbon dioxide is introduced into the lower portion of the reaction zone for admixture with ammonia from the stripping zone, wherein the carbon dioxide and ammonia are flowed upwardly in the reaction zone and countercurrently to an aqueous stream containing ammonium carbamate and urea, wherein the carbon dioxide and ammonia are reacted in the reaction zone to form ammonium carbamate, urea and water, wherein the amount of ammonia introduced into the reaction zone is in excess of that stoichiometrically required to react with the carbon dioxide introduced into the reaction zone in producing urea, wherein said aqueous stream containing ammonium carbamate and urea is passed downwardly through the stripping zone countercurrently to the gaseous ammonia introduced thereinto to decompose the carbamate to carbon dioxide and ammonia for passage with the carbon dioxide fed into the reaction zone, and wherein said reaction zone is cooled by means of indirect heat exchange, the improvement which comprises passing liquid ammonia into indirect heat exchange with the reactants in said reaction zone whereby liquid ammonia is made gaseous and introducing gaseous ammonia thus formed into said stripping zone.
Patent CA-1067782-A (CA)
Inventor: CHRISTENSEN JOHN G III
IPC: A61J1/14
Filed: 1976-02-12
Granted: 1979-12-11
Abstract: METHOD AND APPARATUS FOR SEALED, STERILE CONNECTION      Inventors:  John G. Christensen, Thomas R. Hektner and Steven L. Olson ABSTRACT OF THE DISCLOSURE First and second sealed, sterile containers, having respectively communicating first and second fluid transfer tubes, the tubes having diaphragms occluding the bores thereof, may be connected together in sterile manner for the sterile transfer of the contents of one container to the other.  To accomplish this, one point of a double-pointed, hollow spike is inserted into each of the bores of the fluid transfer tubes, at the free ends thereof, the spike being proportioned to tightly and sealingly fit into each bore of the fluid transfer tubes.  Thereafter, the spike and that portion of the tubes extending from the diaphragms to the free ends thereof are sterilized.  Then the points of the spike are moved to rupture the diaphragms, to open a flow channel, and the sterile contents are trans-ferred.  The fluid transfer tube of the container receiving the desired sterile contents is then resealed, prior to breaking sterility by opening the connection.
Patent CA-1095153-A (CA)
Inventor: BAKER DONALD H
IPC: G01S1/08
Filed: 1976-03-10
Granted: 1981-02-03
Abstract: ABSTRACT OF THE DISCLOSURE           Control apparatus for an aircraft area navigation system provides a vertical path control signal to cause the aircraft to ascend or descend on a helical surface as the craft transitions laterally from the inbound course to the outbound course of a waypoint whereby the craft attains the waypoint altitude when crossing the course bisector thereof while maintaining a pre-determined vertical flight path angle when steered on a pre-determined lateral course transition path.
Patent CA-1046702-A (CA)
Inventor: JOCHUM PETER
IPC: B25C1/14
Filed: 1976-03-26
Granted: 1979-01-23
Abstract: ABSTRACT OF THE DISCLOSURE In an explosive charge driven setting gun for inserting fastening elements into a hard receiving material, caseless charges are positioned in an opening in a holding member prior to being inserted into the firing chamber.  A feed member in the gun displaces the charges from the holding member opening into the firing chamber and a plunger located on the opposite side of the firing chamber from the feed member is movable through the chamber for clearing an unfired charge or any residue of a fired charge.  The holding member can be a magazine or a separate slide movably mounted in the gun housing.  Preferably, the opening in the holding member, the feed member, the plunger and the firing chamber all have the same cross-sectional shape viewed transversely of the firing direction of the gun.
Patent CA-1053702-A (CA)
Title: Process for manufacturing 3,5-ditert. butyl-4-hydroxybenzaldehyde by formylation of 2,6-ditert. butylphenol
Inventor: CAHOY ROGER P
IPC: C07C47/565
Filed: 1976-04-28
Granted: 1979-05-01
Abstract: PROCESS FOR MANUFACTURING 3,5-DITERT.BUTYL-4-HYDROXYBENZALDEHYDE BY FORMYLATION OF 2,6-DITERT,BUTYLPHENOL     ABSTRACT OF THE DISCLOSURE   3,5-ditert.butyl-4-hydroxybenzaldehyde is manufactured in good yields by reacting 2,6-ditert.-butylphenol with hexamethylenetetramine or a combination of formaldehyde and ammonium acetate in aqueous acetic acid reaction medium.
Patent CA-1072525-A (CA)
Inventor: MCVICKER GARY B
IPC: B01J23/58
Filed: 1976-05-13
Granted: 1980-02-26
Abstract: ABSTRACT OF THE DISCLOSURE             The instant invention relates to a novel catalyst which comprises a physical mixture of (1) at least one catalytically active transition metal selected from Group VIII of the Periodic Table of the Elements, preferably iridium, in combination with at least one alkaline earth metal oxide, preferably an oxide of calcium, barium or strontium, and (2) an acidic refractory oxide. The combination of one or more of said Group VIII metals and one or more alkaline earth is thereafter added. These catalysts are useful in hydrocarbon conversion processes and are characterized as having improved stablity under oxidizing conditions, for example, the high temperature oxidation treatments encountered in regenerating deactivated reforming catalysts.
Patent CA-1052721-A (CA)
Inventor: DIAMOND HERRICK R
IPC: B41J29/36
Filed: 1976-06-08
Granted: 1979-04-17
Abstract: AUTOMATIC SINGLE AND REPEAT FUNCTION MECHANISM                 FOR TYPEWRITERS     ABSTRACT OF THE DISCLOSURE       A method and mechanism for automatic actuation of single and repeat typewriter functions such as backspacing upon the insertion and removal of a ribbon cartridge.  The ribbon cartridge, carrying a bidirectional camming abutment having a pair of con-verging cam surfaces is inserted into the typewriter, whereupon a first cam surface engages a backspace coupled cam lever within the typewriter, thereby actuating a typewriter backspace function.          The cam lever includes a pair of convergingly directed cam sur-faces joined by a dwell surface.  As the cartridge camming abut-ment contacts the dwell surface, it actuates a repeat backspace function until the camming abutment passes beyond the dwell sur-face of the cam lever.  The camming abutment includes a second cam surface that engages a second cam surface disposed on the cam lever to actuate a backspace function upon removal of the ribbon cartridge.  Particularly adaptable to correcting typing errors, the present invention will minimize the manipulations now neces-sary to perform an error correcting operation.  Therefore, an automatic single or repeat typewriter backspace function is actuated simply by inserting and removing a ribbon cartridge during an error correcting operation.
Patent CA-1066245-A (CA)
Inventor: VAN WERKHOVEN JAN
IPC: G03B15/04
Filed: 1976-06-23
Granted: 1979-11-13
Abstract: ABSTRACT:             The invention relates to a flash array provided with at least two combustion flash lamps, an indicator being present which indicates whether a lamp has or has not flashed.           According to the invention the indicator mainly consists of a melting strip which is constructed as a radiation-sensitive switch contact, which is part of the electric circuit of the flash array.
Patent CA-1048490-A (CA)
Inventor: HUGGINS HOMER D
IPC: F24F12/00
Filed: 1976-07-19
Granted: 1979-02-13
Abstract: Abstract of the Disclosure A recuperator structure for recovering heat values from a moisture laden hot gas stream that uses a plurality of heat exchangers having separated sets of passages through each in heat exchange relationship with each other, means for directing the hot gas stream through a first set of passages and means for di-recting ambient air through a second set of the passages and to a space for transferring heat to the space, means for precooling the hot gas stream upstream of the heat exchangers to condense moisture from the hot gas stream, means including separate ducts for arranging the heat exchanger and corresponding precooling means in first and second separate banks, flow control means in each duct for directing the hot gas stream selectively through the separate ducts while maintaining the other duct dormant and means for directing a heating medium through the precool means in the dormant duct to melt any frost remaining on the dormant duct precool means.
Patent CA-1085317-A (CA)
Inventor: BOIVIN JOSEPH R G
IPC: B04C5/04
Filed: 1976-08-06
Granted: 1980-09-09
Abstract: ABSTRACT OF THE DISCLOSURE         The invention provides a method and apparatus for thickening centrifugally separable fractions by the steps of providing a pressurized stream of a liquid suspension medium containing a fraction separated centrifugally from any other fraction, causing the stream of the suspension to flow in the form of an annular helical vortical flow, passing the stream of the suspension through a restricted opening, allowing the stream of the suspension to expand into a larger volume contained within a converging confining zone converging in the direction of stream flow and towards the discharge zone having a re-stricted opening of a size smaller than the size of the  first-mentioned restricted opening, regulating the flow of the stream of the suspension to form and maintain the stream as a first vortex of the suspension flowing towards the discharge zone whereby a portion of the suspension reverses direction in the converging zone adjacent the restricted opening of the converging zone and forms a second vortex flowing towards the first-mentioned restricted opening, withdrawing a  thickened suspension through the restricted opening of the discharge zone, and withdrawing the second vortex  containing the suspension expressed by the thickening action through the first-mentioned restricted opening.
Patent CA-1070420-A (CA)
Inventor: HANNA KHEDER A K
IPC: H01Q7/00
Filed: 1976-08-19
Granted: 1980-01-22
Abstract: ABSTRACT          A logarithmic type of aerial array is formed of a plurality of similar broadband active aerial elements linearly arranged with logarithmic spacings, each aerial element being connected to a frequency-sensitive filter.  The filters have progressive frequency-sensitive characteristics along the array such as to tend to pass higher frequencies where the elements are more closely spaced and lower frequencies where the elements are more widely spaced.   The aerial elements are preferably each in the form of a loop, the impedance around the loop being increased in a region on the opposite side of the loop from the loop termination.
Patent CA-1069891-A (CA)
Inventor: VON BREDOW BRIGITTA
IPC: A01N43/90
Filed: 1976-08-27
Granted: 1980-01-15
Abstract: Abstract of the Disclosure The present invention relates to novel 1,2,4-triazolidine compounds, to a process for producing them, to their use for controlling vegetable and animal pests  in agriculture, and to compositions, which contain these novel 1,2,4-triazolidine compounds as active substance.        The 1,2,4-triazolidine compounds correspond to formula   wherein aryl is an aryl group other than benzene, and Y    is an oxygen or sulphur atom.
Patent CA-1050069-A (CA)
Inventor: CREMERIUS WILLI
IPC: B21D11/06
Filed: 1976-08-30
Granted: 1979-03-06
Abstract: ABSTRACT OF DISCLOSURE      A sealing bead for use in sealing gaps in installations and machines which are intended to be operated at high temperatures, the sealing bead comprising a plurality of folded strips of paper which are twisted together to form a helical bundle of strips, said bundle being bound together by a helical thread with the helix formed by said thread being pitched less steeply than the helix formed by each of said strips.
Patent CA-1069072-A (CA)
Inventor: HITZMAN DONALD O
IPC: C12N1/00
Filed: 1976-09-08
Granted: 1980-01-01
Abstract: FERMENTATION OF OXYGENATED HYDROCARBON COMPOUNDS WITH THERMOPHILIC MICROORGANISMS                     Abstract of the Disclosure Single cell protein (SCP) and other fermentation products are produced by aerobic fermentation processes at relatively high temperature conditions employing oxygenated hydrocarbon compounds, such as methanol, as carbon and energy source material, and employing certain unique species Bacillus NRRL B-8066 or NRRL B-8065 as microbial conversion agent, preferably in foam-filled fermentation means.
Patent CA-1077726-A (CA)
Inventor: LINN ORVILLE
IPC: A01D69/00
Filed: 1976-09-10
Granted: 1980-05-20
Abstract: ABSTRACT OF THE DISCLOSURE       A self-propelled swather includes a front drive wheel at one end thereof and a rear drive wheel at the other end with a castoring support wheel on the rear side between the two drive wheels.  The drive wheels are each driven by a variable speed hydraulic motor so that side draft or drag of one end is eliminated.  Steering from a cab at one end of the swather is by hydrostatic means and the rear drive wheel assembly can be turned 90° for trans-port.  When in the transport position, all of the power can be directed to the front drive wheel thus increasing the drive speed of the swather under these conditions.
Patent CA-1062335-A (CA)
Inventor: MANDULEY FLAVIO M
IPC: G01R31/28
Filed: 1976-10-27
Granted: 1979-09-11
Abstract: ABSTRACT OF THE DISCLOSURE         For servicing digital logic circuits, a hand-held monitor can be connected to an indefinite number of different sets of test points.  Numerical and binary displays  indicate the current state of the selected test points.  To help the user understand what is being monitored, removable cards can be mounted adjacent the displays.  Each of the cards has printed information relating to a different set of test points.          An operator-controlled auxiliary clock is included to permit the operator to step the circuit being monitored through its operating sequence.
Patent CA-1066214-A (CA)
Inventor: NUBEL ROBERT C
IPC: C12P7/48
Filed: 1976-11-09
Granted: 1979-11-13
Abstract: ABSTRACT OF THE DISCLOSURE           Citric acid is produced by aerobically propagating a citric acid-accumulating strain of yeast of the genus Candida in an aqueous nutrient medium containing enough readily assimilable source of carbon to promote growth but insufficient to permit the accumulation of citric acid; introducing slack wax as the principal source of assimilable carbon together with a solubilizing agent into the aqueous nutrient medium after at least 50% of the readily assimilable source of carbon has been utilized, continuing the aerobic propagation until a level of at least about 1 gram of citric acid has been accumulated per liter of aqueous medium and recovering the citric acid, said solubilizing agent being selected from the group consisting of alkanols having 4 to 10 carbon atoms in each alkyl moiety, lower alkyl esters of alkanoic acids having 2 to 6 carbon atoms, alkenes and alkanes having 8 to 19 carbon atoms, turpentine, mineral oil and mixtures thereof.
Patent CA-1088545-A (CA)
Inventor: SHERLOCK MARGARET H
IPC: C07D295/027
Filed: 1976-11-24
Granted: 1980-10-28
Abstract: A B S T R A C T   O F   T H E   D I S C L O S U R E            This invention relates to processes for the preparation of novel picolinic acid derivatives and to novel pico-linic acid derivatives so obtained. The novel compounds are useful in the treatment of acne.
Patent CA-1070407-A (CA)
Title: System for detecting abnormality in fuel feed control system of gas turbine engine
Inventor: HOSAKA AKIO
IPC: F02C7/26
Filed: 1976-12-07
Granted: 1980-01-22
Abstract: Abstract of the Disclosure For a gas turbine engine provided with a fuel feed control system that includes an engine speed sensor and provides a fuel feed rate control signal based on the deviation of the sensed engine speed from an intended speed, the invention provides a system for detecting the presence of an abnormality possibly leading to an overrun of the engine shortly after starting of the engine.          This system comprises a timer circuit which produces a signal such as logic "1" signal after the lapse of a preset period of time from starting of the engine, a comparison circuit which produces a signal such as logic "1" signal if the amplitude of the actual engine speed signal is below a normally expected level after the lapse of the preset period of time, and a logical operation circuit which provides a warning signal only when, for example, the outputs of the timer and com-parison circuits are both "1" signals.