baber/WOPTO huggingface dataset:
Patent CA-1038788-A (CA)
Inventor: ROBINSON LEON
IPC: C10L9/02
Filed: 1974-09-25
Granted: 1978-09-19
Abstract: BE IT KNOWN THAT OCCIDENTAL PETROLEUM CORPORATION of 10889 Wilshire Boulevard, Los Angeles, California 90024, United States of America, having made an invention entitled:          "Process for desulphurizing char"   the following disclosure contains a correct and full description of the invention and of the best mode known to the inventors of taking advantage of the same.            ABSTRACT            Char is desulphurized by leaching with a molten mixture of a thermally stable organic acid, preferably cresylic acid (coal tar fraction) and alkali, preferably caustic alkali, for a suitable period.
Patent CA-1050682-A (CA)
Inventor: MARK VICTOR
IPC: C08L67/00
Filed: 1974-10-15
Granted: 1979-03-13
Abstract: ABSTRACT OF THE DISCLOSURE           A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the metal salts of sulfonic acids of monomeric and polymeric aromatic carboxylic acids and esters, and mixtures thereof.   Thermoplastic articles conforming to the requirements of UL 94 Burning Test grade SE-O can be prepare from preferred compositions.
Patent CA-1038461-A (CA)
Inventor: ISHIGAKI YOSHIO
IPC: H01L29/73
Filed: 1975-04-30
Granted: 1978-09-12
Abstract: ABSTRACT OF THE DISCLOSURE        A gain control circuit utilizing a novel bidirectional transis-tor connected in shunt with a pair of outputs of a differential amplifier circuit. The novel bidirectional semiconductor device has its conduction level controlled by a variable bias source in its base circuit. By adjusting the bias source, the impedance of the bidirectional device is controlled, and hence the magnitude of the output signal developed across its terminals is controlled in gain.
Patent CA-1050382-A (CA)
Inventor: CHAKRABARTI PARITOSH M
IPC: C11D3/48
Filed: 1975-05-06
Granted: 1979-03-13
Abstract: SURFACTANT IODINE COMPOSITION                          AND               METHOD FOR PREPARING SAME               ABSTRACT OF THE DISCLOSURE           An improved surfactant-iodine composition is made by first dissolving an inorganic iodide in the surfac-tant and then dissolving iodine in the thus formed surfac-tatn-iodide composition.  The novel compositions are iodine complexes of nonionic or cationic surfactants in the presence of ioide, have a weight ratio of iodide to iodine of at least about 0.05 and have preferably between about 1 and about 50 weight percent available iodine.   These compositions have a wide variety of well known uses as germicidal and santizing cleaning compositions.
Patent CA-1040056-A (CA)
Inventor: CHACOUR SELIM A
IPC: F03B11/00
Filed: 1975-07-23
Granted: 1978-10-10
Abstract: HYDRAULIC TURBINE INSTALLATION AND METHOD OF   ASSEMBLING THE TURBINE HEADCOVER THEREIN                   ABSTRACT OF THE DISCLOSURE           A hydraulic turbine installation and method of assembling a turbine headcover composed of two half sections in the turbine pit.  The opening into the pit at the top thereof is smaller than the diameter of the headcover.          Furthermore, the turbine thrust bearing flange located in the pit below the opening defines an inside diameter which is also less than the diameter of the headcover.  However, dia-metrically opposed slots are provided in the thrust bearing flange having a span therebetween which is greater than the diameter of the headcover.  This arrangement permits lowering a headcover half section with its diameter dimension disposed vertically through the top opening into the pit and then rotating the half section into the thrust bearing slots so that the diameter dimension is disposed horizontally.  From this position, means are provided to rotate and lower each turbine half section onto its pit mounting.
Patent CA-1058640-A (CA)
Inventor: DANIELS CALVIN L
IPC: C07C67/00
Filed: 1975-08-05
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE             Fresh feed of C1 -C5 refinery gases containing pre-dominantly polymerizable butenes are rapidly mixed and diluted with Friedel-Crafts catalyst and recycle reaction mixture in a static mixer before passing to the polymeriza-tion reaction column whereby the temperature is more readily controlled to a constant value to produce polybutene of more constant quality in higher yield and with less catalyst loss.
Patent CA-1043080-A (CA)
Title: Tie assembly for erecting concrete forms
Inventor: LOVISA PETER R
IPC: E04G17/06
Filed: 1975-09-26
Granted: 1978-11-28
Abstract: ABSTRACT OF THE DISCLOSURE         A feed-through, self-sealing tie assembly for mounting as a unit on concrete forms and capable of being removed therefrom without disassembling the forms or the tie assembly is disclosed.          The tie assembly includes an elongated tie rod on which is mounted an elongatable, elastomeric sleeve.  The sleeve and the tie rod have interengageable surfaces for releasably coupling the sleeve to the tie rod.  Guide means positioned over one end of the sleeve facilitates insertion of the tie assembly through corresponding spaced openings in the forms so that both ends of the sleeve are projected exteriorly of the forms.  The openings are sealed by the elastomeric sleeve due to the lateral deformation of the sleeve when in the form openings and by the compressive forces exerted by the concrete on the tie assembly.  Thus, the elastomeric sleeve provides a self-sealing and removable closure.  Wedges or nuts coo-perate in coupling the tie rod to the forms; and external spreader brackets are provided to maintain the forms apart the prescribed distance.
Patent CA-1056068-A (CA)
Inventor: YAGI HAJIME
IPC: H01L27/00
Filed: 1975-10-20
Granted: 1979-06-05
Abstract: ABSTRACT OF THE DISCLOSURE     A semiconductor device having a high emitter-grounded current gain which includes an emitter region with the minority carrier diffusion length greater than its width and an additional region adjacent to the emitter region with the minority carrier diffusion length of this additional region greater than its width. The surface recombina-tion velocity of the additional region is small. The minority carrier current injected from the additional region into the emitter balances that injected from the base into the emitter.
Patent CA-1041406-A (CA)
Inventor: SORBIER PIERRE
IPC: D21B1/06
Filed: 1975-11-24
Granted: 1978-10-31
Abstract: Cette invention a pour objet une machine de déchiquetage destiné notamment à faciliter et améliorer le défibrage de pièces de bois ou matériaux ligneux analogues.  Cette machine, du genre comprenant une nappe formant un tapis sans fin portant des outils de défibrage tels que des groupes et formant un brin supérieur sur lequel est amené le matériau à défibrer, lequel brin tourne à sa partie antérieur autour d'un arbre de renvoi, est caractérisé par le fait qu'elle comporte une butée fixe d'extrémité-au-dessus dudit arbre, le profil inférieur de butée étant adapté au trajet des gouges et par le fait que des moyens sont prévus, coopérant avec ladite butée, pour empêcher le passage des débris épais de matériau à défibrer.
Patent CA-1075760-A (CA)
Inventor: CADE PHILLIP J
IPC: G05D25/02
Filed: 1976-01-08
Granted: 1980-04-15
Abstract: Abstract of the Disclosure The present invention relates to a system for regulating the out-put of a radiation source  The system is comprised of a power source ter-minal radiation source connected in circuit with the power source terminal and an electronic switch connected in circuit with the power source ter-minal and the radiation source to control the energization of the radiation source.  A radiation sensor is optically coupled and responsive to the radiation output of the radiation source.  A feedback circuit is provided, responsive to the radiation sensor and connected to control the electronic switch.  The feedback circuit has a first output condition in response to a first value of radiation output from the radiation source.   This first condition places the switch into a non-conducting condition to terminate energization of the source.  When the radiation sensed reaches a second value below the first value the feedback circuit takes on a second condition that places the switch into a conducting condition.  This regulates the radiation source very precisely.
Patent CA-1065745-A (CA)
Inventor: KUNIOKA KAZUO
IPC: C21D11/00
Filed: 1976-01-19
Granted: 1979-11-06
Abstract: Abstract of the Disclosure A method of quenching a large-diameter thin-wall metal pipe wherein in the process of quenching a large-diameter thin-wall metal pipe by continuously passing the pipe through a heating zone to a cooling zone, in the rear part of the cooling zone the amount of strain on the outer periphery of the pipe is detected at a plurality of positions on the circumference of the pipe, whereby in accordance with the deviation of the detected value from a predetermined value the amount of cooling water at the positions on the circumference corresponding to the detecting positions is changed and if necessary the correcting pressure of mechanical correcting means is further controlled, thereby still ensuring a correct shape for the pipe when the quenching has taken place.
Patent CA-1057086-A (CA)
Inventor: EVANS EDWARD R
IPC: C21C1/00
Filed: 1976-01-21
Granted: 1979-06-26
Abstract: ABSTRACT OF THE DISCLOSURE           A quantity of an alloy having 30-80% by weight Si; 3-15% by weight Mg; 3-25% by weight Ti; 0.05-1.0% Ce and the balance Fe, is added, as a single treatment, to molten carbon-containing iron to produce a cast iron with a compacted graphite structure.  The cast irons so pro-duced combine the strength and ductility normally associated with nodular graphite irons with the better thermal con-ductivity and resistance to thermal shock normally associated with elongated flake graphite irons.  Particularly preferred alloys for use in the invention have a ratio of Mg:Ti between 1:1 and 1:2 by weight, a ratio of Mg:Ce between 50:1 and 2:1 by weight, and are added to the melt in an amount between about 0.8% to 1.8% by weight of the molten iron. It is also preferred that the melt be innoculated, for ex-ample with ferrosilicon, subsequent to alloy addition.
Patent CA-1049381-A (CA)
Inventor: HELLGREN HANS
IPC: B27B5/22
Filed: 1976-04-27
Granted: 1979-02-27
Abstract: ABSTRACT OF THE DISCLOSURE     A method for trimming timber boards to length, in which the boards are firstly cross cut at one end, and simultaneously or immediately afterwards marks are applied along each board which marks are equally spaced relative to each other at a distance from the cut end which is a multiple of the spacing between the marks.  After marking, the boards are turned by a board turner; the marks being positioned so as to be usable after turning of the board.  The marks are used in positioning the board for the cutting of its other end.
Patent CA-1080299-A (CA)
Inventor: SLEDER RICHARD L
IPC: F02P7/067
Filed: 1976-09-13
Granted: 1980-06-24
Abstract: ABSTRACT OF THE DISCLOSURE             A two-cylinder, two-cycle engine for an outboard motor includes a pull-rope starter unit and an alternator driven, capacitor discharge ignition system.  The alternator includes an annular permanent magnet secured within a flywheel skirt and includes a pair of circumferential opposite poles with diametrical spaced neutral areas.  A stator assembly is mounted within the annular magnet and includes a semicircular core with charging coil at each end.  The coils are connected to charge a capacitor unit which is discharged through a con-trol rectifier.  A trigger coil is connected to the gate of the rectifier and is mounted in coplanar relation between the charg-ing coils.  The trigger coil is wound on a pole aligned with and spaced from the stator core with the coil and pole rotatably mounted by a housing having an integral cam for positioning a throttle lever.  The housing rotates through a selected segment of the core.  The outer periphery of the segment is non-circular to form an increasing air gap with advancing throttle spark position and thereby progressively increases the minimum RPM for starting of the engine, if the throttle and spark are ad-vanced BTDC.  This ensures that the piston moves past TDC dur-ing starting for all throttle positions.
Patent CA-1060198-A (CA)
Inventor: GROLMAN BERNARD
IPC: A61B3/11
Filed: 1976-09-29
Granted: 1979-08-14
Abstract: DEVICE FOR MAKING OPHTHALMIC MEASUREMENTS AND METHOD     Abstract of the Disclosure A device for use in the art of fitting lenses to spectacle frames wherewith ophthalmic measurements are applied directly to frames selected by patients.  A frame without lenses is adjusted to fit the patient, the measuring device is then applied to the frame and the whole placed upon the face.  Horizontal and vertical measurements of distances from lateral and inferior points on the frame rims to a desired location of lens optical center relative to pupil are made for each eye and these measurements are forwarded to the lens finishing shop for edging and fitting of the lenses.
Patent CA-1062300-A (CA)
Inventor: MELROSE KENDRICK B
IPC: F16B7/04
Filed: 1976-09-30
Granted: 1979-09-11
Abstract: Abstract of the Disclosure Playground apparatus including a plurality of conven-tional playground swings which are supported for oscillatory or reciprocating movement above a ground surface by swing support structure.  The apparatus further includes a target object which may be an inflated or air-filled spherical ball pendulously supported above the ground surface.  The swings may be disposed so that the normal paths of their travel converge toward the target object so that participants using the swing may attempt to contact the target object as a play activity.      Alternative target objects and swing configurations are dis-closed.
Patent CA-1069975-A (CA)
Inventor: AKAMATSU MASAHIKO
IPC: G05F1/56
Filed: 1976-11-17
Granted: 1980-01-15
Abstract: ABSTRACT OF THE DISCLOSURE         A semiconductor switch comprises a transistor connected to a main circuit having a DC current and a load, pulsing means which  is connected in series in an electric path connecting the collector and the emitter of the transistor, and a thyristor connecting main current electrodes in parallel to series of the transistor and the pulsing means.
Patent CA-1080884-A (CA)
Inventor: SAAM JOHN C
IPC: C08L33/04
Filed: 1976-12-08
Granted: 1980-07-01
Abstract: ABSTRACT OF THE DISCLOSURE           Improvement in impact strength of certain vinylic polymers is obtained by dissolving a mercapto-siloxane-dimethylsiloxane copolymer in a vinylic monomer and converting the monomer to a polymer by bulk or suspension polymerization in the presence of a free radical generator. For example, a copolymer of mercaptopropylmethylsiloxane and dimethylsiloxane is dissolved in styrene and the styrene is copolymerized with acrylonitrile in bulk and/or in water suspension using benzoyl peroxide as a catalyst.
Patent CA-1093548-A (CA)
Inventor: KOPPEL GARY A
IPC: C07D/
Filed: 1977-02-09
Granted: 1981-01-13
Abstract: Abstract of the Disclosure 3-Halomethyl-3-cephems are provided by a novel process comprising reacting a 3-methylenecepham with an alkali metal salt of a lower alcohol or a bicyclic amidine base in the presence of a positive halogenating agent at a temperature ranging from -80°C. to 20°C.  The 3-halomethyl-cephems provided by this invention are useful intermediates for the preparation of known cephalosporin antibiotics.
Patent CA-1077717-A (CA)
Inventor: WALDHOFER REINHARD
IPC: B02C4/02
Filed: 1977-02-10
Granted: 1980-05-20
Abstract: ABSTRACT OF THE DISCLOSURE     Ashes and cinders which form during gasification of solid combustible substances are captured in a liquid body and form clinker granules of different sizes therein. A comminutor is arranged below the chamber in which the liquid body is accommodated so that the clinker granules descend into the comminutor in which the clinker granules are reduced to clinker particles having sizes equal to or smaller than a predetermined size. The comminutor may have two comminutor rollers rotated by respective drives in opposite directions about parallel horizontal axes. The drives are arranged outside and mounted on the comminutor housing, and are connected to the respective comminutor rollers by shafts penetrating through the comminutor housing and sealed by shaft seals. The comminutor may, in the alternative, include a single comminutor roller which co-operates with a grating tiltably mounted in the comminutor housing.          A pivotable segment valve may be provided which controls the periodic discharge of the comminuted clinker from the comminutor housing into a discharge conduit or a water lock.
Patent CA-1095606-A (CA)
Inventor: ATKINS CARL E
IPC: G08C19/00
Filed: 1977-02-10
Granted: 1981-02-10
Abstract: ABSTRACT OF THE DISCLOSURE      A keyable control circuit generates a narrow-band FM signal.  A keying circuit, containing two tuned circuits, placed next to the tank coil of the keyable control circuit, absorbs rf energy each time the FM signal sweeps past the resonant frequency of one of the tuned circuits.  Detector circuits within the keyable control circuit, upon sensing the amplitude modulation imposed by the cyclic absorption by one of the tuned circuits, cause the rf frequency of the FM signal to jump to a second frequency region.  If the second tuned circuit in the keying circuit matches the new frequency, detector circuits again detect the amplitude modulation imposed by the cyclic absorption.  After detecting the second signal, the keyable control circuit generates an electrical control signal output for use by external circuits.
Patent CA-1060505-A (CA)
Inventor: BLENCH CARL
IPC: G01G19/12
Filed: 1977-02-22
Granted: 1979-08-14
Abstract: Abstract of the Disclosure A problem that is often encountered under uneven terrain conditions with on-board load weighing systems for vehicles, such as logging trucks, having a frame member and a load support member to which a load which is to be measured is applied, is that structural failures occur in the load cell assemblies included in the on-board load weighing system. The cause of these structural failures is traced to rotation of the load cell assemblies resulting in undue tensive forces in the load cells thereof. Various restraining devices are discussed for limiting the upward deflection of an upper, load concentrating portion of the load cell to maintain the tensive forces within acceptable levels.
Patent CA-1109742-A (CA)
Title: Method and means for continuously contact-coating one  side only of a ferrous base metal strip with a molten coating metal
Inventor: SCHNEDLER PAUL E
IPC: B05C9/02
Filed: 1977-03-09
Granted: 1981-09-29
Abstract: ABSTRACT OF THE DISCLOSURE    Method and means for continuously contact-coating one side only of a ferrous base metal strip with a molten coating metal   One or more roll means are provided to conduct the strip surface to be coated above the surface of a bath of the molten coating metal.   The strip surface to be coated is caused to travel sufficiently close to the molten coating metal bath surface that the surface tension and wetting characteristics of the coating metal will permit the formation of a meniscus which will continuously contact and coat the strip surface    The coating is subjected to jet finishing The strip is maintained in a protective non-oxidizing atmosphere at least until the one side thereof is coated   The strip may be maintained in the protective non-oxidizing atmosphere until it is sufficiently cooled to prevent the formation of a visible oxide on the uncoated side thereof.   When the strip is exposed to an oxidizing atmosphere after coating and while still sufficiently hot to form a visible oxide coating on the uncoated side thereof, the strip will thereafter be subjected to acid cleaning, rinsing and drying operations.
Patent CA-1066331-A (CA)
Inventor: KLEIN KEITH W
IPC: H01H71/04
Filed: 1977-03-18
Granted: 1979-11-13
Abstract: ABSTRACT OF THE DISCLOSURE      A ground fault circuit interrupting (GFCI) device in-cludes a conventional circuit breaker equipped with a trip mechanism operable automatically to open the breaker contacts in response to overcurrent conditions.  A GFCI module, responsive to ground leakage current, actuates a trip solenoid to open the breaker contacts via the trip mechanism in response to a ground fault.  A indicator, carried by linkage interconnecting the solenoid and trip mechanism, is moved registry with an opening in the breaker case only upon actuation of  the solenoid to thus indicate the occurrence of a ground fault trip function.
Patent CA-1097846-A (CA)
Inventor: MARKIEWITZ KENNETH H
IPC: C08F4/00
Filed: 1977-04-01
Granted: 1981-03-17
Abstract: ABSTRACT OF THE DISCLOSURE Ethylenically unsaturated monomers susceptible to free radical polymerization may be polymerized by contacting the monomers with an initiating compound having the formula:    wherein R1 is a substituted or unsubstituted aryl radical.
Patent CA-1138535-A (CA)
Inventor: WHITNEY EUGENE C
IPC: H05B6/02
Filed: 1977-05-16
Granted: 1982-12-28
Abstract: 46,477 BOLT HEATER             ABSTRACT OF THE DISCLOSURE         Heating apparatus for axially expanding a connect-ing bolt prior to tightening to provide a predetermined de-gree of compression.  The connecting bolt is provided with a central bore for receiving an electrical conductor.  A low resistance conductor is disposed in electrical contact with the bolt at a suitable position along the inside diameter surface of the bore.  Alternating current is transmitted from a power source through the conductor to its point of contact with the bolt.  In response to the flow of alternating current through the conductor, an electromagnetic field is established around the conductor and on the surface of the central bore.  This field confines the current flow within a limited cylindrical interior region of the bolt as it is conducted from the conductor to the top of the bolt.  The current flow in the bolt material is equal and opposite in direction at any moment to that in the central conductor.          The current penetrates the bolt to a radial depth which is a function of the magnetic saturation characteristic and resistivity of the bolt material, and of the current magni-tude.  The bolt is heated by the effective resistive loss of the current flow within the iron material of the bolt.          Since the heat is generated directly within the iron material of the bolt, direct heat transfer from the central conductor to the bolt is only incidental and is not essential to successful heating by the method and structure of the inven-tion.  Furthermore, surface heat transfer limitations asso-ciated with conventional resistance heater arrangements are 46,477 avoided.
Patent CA-1051281-A (CA)
Inventor: SNYDER RICHARD H
IPC: B63H1/28
Filed: 1977-05-20
Granted: 1979-03-27
Abstract: PROPELLER     Abstract A propeller having a specified combination of blade sweep, camber and rake which provides distinct operating advantages when utilized on pleasure boats; and further including weed cutting and protection features which make the prop particularly suitable for use on outboard motors and stern drives employing underwater exhaust through the lower gear case housing. Propeller blade rake and camber are adjusted as described to improve performance of light to moderately loaded, medium to high speed pleasure boats.          The blades are swept aft and weed cutting blade-like fingers extend forwardly of the propeller blades to prevent weeds from accumulating forward of the prop and blocking the exhaust passageway.
Patent CA-1103103-A (CA)
Inventor: BLUNT HARRY W
IPC: B65D8/06
Filed: 1977-07-15
Granted: 1981-06-16
Abstract: Abstract of the Disclosure Coated bottles are disclosed having a coating comprised of a blend of polypropylene with a hydrocarbon elastomer.  The coat-ing is adhered loosely to the bottle so that, upon rupture of the glass, it forms an envelope to contain glass fragments.